Air Compressor System - Amico
Air Compressor System - Amico
Air Compressor System - Amico
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Source Equipment<br />
<strong>Air</strong> <strong>Compressor</strong>s
Source Equipment<br />
Table of Contents<br />
6.1 How To Use This Section ..................................................................................................................................................................................................1<br />
6.2 Introduction .............................................................................................................................................................................................................................1<br />
6.2.1 The Four Essentials To Building a Medical <strong>Air</strong> <strong>System</strong>..............................................................................................................................1<br />
6.3 Steps to Implementing The Medical <strong>Air</strong> <strong>System</strong>s .............................................................................................................................................2<br />
6.3.1 Discovery ........................................................................................................................................................................................................................ 2-3<br />
6.3.2 Design ...................................................................................................................................................................................................................................3<br />
6.3.3 Plant Sizing .................................................................................................................................................................................................................... 3-4<br />
6.3.4 Altitude Adjustments ...................................................................................................................................................................................................5<br />
6.3.5 Compensating for “Future Expansion” ..............................................................................................................................................................6<br />
6.3.6 Plant Selection .................................................................................................................................................................................................................6<br />
6.3.7 General Layout .................................................................................................................................................................................................................7<br />
6.3.8 Specification ......................................................................................................................................................................................................................7<br />
6.3.9 Technology Comparison Chart ..............................................................................................................................................................................8<br />
6.4 Medical <strong>Air</strong> <strong>System</strong>s Glossary ........................................................................................................................................................................................9<br />
6.4.1 Summary of NFPA 99 Specification (<strong>Air</strong> <strong>Compressor</strong>) ...................................................................................................................10-19<br />
6.5 Quick Guide to Configuration ................................................................................................................................................................................... 20<br />
6.6 Medical <strong>Air</strong> <strong>System</strong> Inlet ................................................................................................................................................................................................ 21<br />
6.7 Examples and Figures<br />
Figure 1 <strong>Air</strong> Intake Location Diagram ..............................................................................................................................................................................2<br />
Figure 2 NFPA Method Medical <strong>Air</strong> Flow Calculation ....................................................................................................................................... 4-5<br />
Figure 3 Compensation for altitude for Medical <strong>Air</strong> <strong>Compressor</strong> <strong>System</strong> .................................................................................................6<br />
Figure 4 Medical <strong>Air</strong> <strong>Compressor</strong> <strong>System</strong> Intake Pipe Sizing Chart ..........................................................................................................22<br />
Figure 5 Example 1: Calculating SCFM .........................................................................................................................................................................23<br />
6.8 Medical <strong>Air</strong> <strong>System</strong> Drawings<br />
Medical <strong>Air</strong> Scroll <strong>Compressor</strong> Specification Sheet ......................................................................................................................................24-26<br />
Duplex Scroll Modular Stacking Configuration <strong>Air</strong> <strong>Compressor</strong> (7.5 HP - 15.0 HP) ..........................................................................27<br />
Duplex Scroll Tank Mounted Horizontal Configuration <strong>Air</strong> <strong>Compressor</strong> (2.0 HP – 7.5 HP) ..........................................................28<br />
Triplex Scroll Modular Stacking Configuration <strong>Air</strong> <strong>Compressor</strong> (7.5 HP – 15.0 HP) ..........................................................................29<br />
Quadruplex Scroll Modular Stacking Configuration <strong>Air</strong> <strong>Compressor</strong> (7.5 HP – 15.0 HP) ..............................................................30<br />
Oil-Less Reciprocating <strong>Air</strong> <strong>Compressor</strong> Specification Sheet ....................................................................................................................31-33<br />
Duplex Reciprocating Modular Stacking Configuration <strong>Air</strong> <strong>Compressor</strong> (5.0 HP - 15.0 HP) ...................................................... 34<br />
Duplex Reciprocating Tank Mounted Horizontal <strong>Air</strong> <strong>Compressor</strong> (2.0 HP – 10.0 HP) .....................................................................35<br />
Triplex Reciprocating Modular Stacking Configuration <strong>Air</strong> <strong>Compressor</strong> (5.0 HP– 15.0 HP) ........................................................ 36<br />
Quadruplex Reciprocating Modular Stacking Configuration <strong>Air</strong> <strong>Compressor</strong> (5.0 HP – 15.0 HP)............................................37<br />
<strong>Amico</strong> Source Equipment
6.1 How to Use This Section<br />
The following section is structured in a manner such that the medical air system for a project may be established and<br />
executed in a sound and simple progression. Examples are given whenever possible.<br />
The basic milestones in designing the medical air system are as follows:<br />
• Definitions – Definitions are provided in the glossary section which contains terminologies which may be<br />
frequently utilized within the Medical <strong>Air</strong> <strong>System</strong>s section. These terms may also be helpful in understanding<br />
and specifying the appropriate medical air system.<br />
• Design – General outline pertaining to the procedural involvement in designing your Medical <strong>Air</strong> <strong>System</strong>s.<br />
• Sizing and Selecting the Medical <strong>Air</strong> <strong>System</strong> – Step by step calculation exemplifying how to calculate the<br />
Peak Calculated Load (PCL) Requirements for the medical facility.<br />
• Installation – Steps to building your medical air systems.<br />
6.2 Introduction<br />
Medical <strong>Air</strong> <strong>System</strong>s<br />
The NFPA-99 standards for Medical <strong>Air</strong> <strong>Compressor</strong>s define an essential foundation of Medical <strong>Air</strong> <strong>Compressor</strong>s<br />
as follows: <strong>Air</strong> should start clean and be kept clean. For that reason, the air inhaled by the patient at the very least<br />
should be minimally equal to filtered local outdoor air.<br />
All compressors included herein are deemed suitable for medical use under The NFPA Standards. For further<br />
information on NFPA compliant medical systems, please consult your Local <strong>Amico</strong> Source representative.<br />
6.2.1 The Four Essentials To Building A Medical <strong>Air</strong> <strong>System</strong>:<br />
1. The intake air location must never be contaminated by placing the medical air systems in a poorly<br />
ventilated area.<br />
2. The medical air must be available at all times, including in the event of a single fault failure.<br />
3. The air must be dry enough to ensure no liquid water can develop under any normal operating conditions<br />
(This is not necessarily assured simply by meeting the NFPA mandated dew point).<br />
4. Any contamination whereby the system can produce within itself under any conditions (e.g. particulate)<br />
must be removed (e.g. by filtration) before it can reach the patient.<br />
NFPA defines various rules for the construction of the air plant and the safety devices required for each machine<br />
type. Additionally, good engineering practice defines crucial elements such as after coolers, drains and traps,<br />
dryers, vibration isolation, and hundreds of other small but significant elements of good air system design. <strong>Amico</strong><br />
Source has pre-engineered all the medical air systems in this section to warrant that they include not only the basic<br />
requirements of the principles, but also the many foundations behind good engineering. This section of the design<br />
guide also permits the user to make selections of complete medical air packages for reasons specified hereafter. It<br />
is impractical to craft a design guide encompassing all the knowledge <strong>Amico</strong> Source’s engineers have applied to<br />
the design of these systems. Nevertheless, within this design guide, you can easily locate the necessary information<br />
to ensure you can apply these systems with confidence and provide for your client a fully satisfactory medical air<br />
system. Medical <strong>Air</strong> in smaller systems may be provided by manifolds in lieu of compressor systems. The sizing<br />
criteria are the same for either source type.<br />
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6.3 Steps to Implementing the Medical <strong>Air</strong> <strong>System</strong>s<br />
6.3.1 Discovery<br />
1. Should existing equipment be incorporated along with the medical air system, determine the<br />
dimensions, type, capacity and current loading of the existing equipment. Ensure the existing equipment is<br />
compatible with the current standard.<br />
2. Verify the number and type of all occupancies in the facility which will require medical air outlets.<br />
3. Determine the number of ventilators required to be in service at any one time and define their type and<br />
average inlet air requirement.<br />
4. The intake piping for a medical air compressor system should only be connected to the medical air<br />
compressor system and not used for any other purpose. It should be made of hard-drawn seamless copper,<br />
either ASTM B 819 medical gas tube, ASTM B 88 water tube (Type K, L, or M), or ASTM B 280 ACR tube, which<br />
ensures no contaminants in the form of particulate matter, odor or other gases will be added. This piping is<br />
to be labeled and equipped with intake filters that are located inside the health care facility, close to the<br />
compressor, and are easily accessible for servicing. Examine the location intended for the air intake carefully<br />
as NFPA mandates the intake be located at a minimum of 10 ft. (3 m) from any door or operable window;<br />
20 ft. (6.1 m) above grade, and in a location likely to provide uncontaminated air under any conditions of<br />
wind or weather. The intake opening shall be turned downward and screened. It shall be accessible<br />
to authorized personnel for cleaning, inspection and servicing. If the air intake is near a loading dock or at a<br />
location where vehicles may be present, it must be relocated. It is advisable to place the intake at<br />
a height above any other intake or vent on the same roof (See Figure 1 below). For further details regarding<br />
the rules and regulation in choosing your medical air system location, please refer to the latest edition of the<br />
NFPA specification guide.<br />
Figure 1:<br />
<strong>Amico</strong> Source Equipment
5. Determine a routing for the intake piping and note it on the building drawings. Piping downstream of the<br />
compressor shall be routed in a manner such that it is not subjected to temperatures lower than 40 o F (4 o C).<br />
6. Ensure the intended location for the air plant is adequately ventilated or is at minimum air conditioned. The<br />
plant will emancipate a considerable amount of heat into the surroundings. Hence, it must be factored<br />
in when selecting a compressor site; determining the adequacy of ventilation; or identifying BTU<br />
requirements for air conditioning. (BTU data is furnished in the equipment data sheet).<br />
7. Determine the availability of electrical service.<br />
8. If the medical air system is not already piped to the proposed location, determine the routing for<br />
the piping and note it on the building drawings.<br />
6.3.2 Design<br />
1. Follow directions for laying out piped medical gases. This will supply a count of outlets which is<br />
necessary for the next steps.<br />
6.3.3 Plant Sizing<br />
There are several available methods for sizing Medical <strong>Air</strong>. For the purpose of this design guide, only the National Fire<br />
Protection Association (NFPA) Method will be discussed.<br />
The NFPA Plant Sizing Method<br />
1. Count all outlets within the infrastructure that will utilize the air compressor system (See Figure 2).<br />
In situations in which the exact type of room cannot be located within the table, please select the<br />
one which most closely approximates the room as indicated in the chart.<br />
2. Once the total amount of outlets are entered, the next step entails multiplying all variables across the table<br />
(left —>right) to apply the simultaneous usage factor.<br />
3. Obtain an estimate of air requirement by summing the columns (top v |<br />
bottom).<br />
4. NFPA recommends the inclusion of additional capacity for potential ventilator use. However, this ventilator<br />
factor causes significant problems and is usually the cause behind gross over-sizing for medical air<br />
plants. Therefore, extreme caution should be taken.<br />
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Figure 2 NFPA Method - Medical <strong>Air</strong> Flow Calculation<br />
Please refer to the table below to obtain an average flow that is required within the facility. This chart is also available<br />
at www.amico.com.<br />
Location of Outlets<br />
Anesthetizing Locations<br />
1. Special surgery and<br />
cardiovascular<br />
2. Major surgery and<br />
orthopedic<br />
3. Minor surgery<br />
4. Emergency surgery<br />
5. Radiology<br />
6. Cardiac<br />
catheterization<br />
7. Ventilators<br />
8. Delivery rooms<br />
Acute Care Locations<br />
1.<br />
2.<br />
3.<br />
4.<br />
5.<br />
(Non-Anesthetizing)<br />
Recovery<br />
room/surgical<br />
(Post-Anesthesia)<br />
ICU/CCU<br />
Emergency Room<br />
Neonatal ICU<br />
Dialysis units<br />
6. Recovery rooms/OB<br />
7. Ventilators<br />
Sub-Acute Patient Care<br />
1.<br />
(Non-Anesthetizing)<br />
Nursery<br />
2. Patient rooms<br />
(where shown)<br />
3. Exam & Treatment Room<br />
4. Pre-op holding<br />
5. Respiratory care<br />
6.<br />
Pulmonary function lab<br />
<strong>Amico</strong> Source Equipment<br />
Free <strong>Air</strong> Allowance, SCFM<br />
Medical <strong>Air</strong><br />
Simultaneous Number of Units, <strong>Air</strong><br />
Per<br />
Unit<br />
3.5<br />
6<br />
Per<br />
Bed<br />
2<br />
2<br />
2<br />
1.5<br />
0.5<br />
0.5<br />
0.5<br />
Per<br />
Room<br />
0.5<br />
0.5<br />
0.5<br />
0.5<br />
0.5<br />
0.5<br />
0.5<br />
2<br />
1<br />
1<br />
Per<br />
Outlet<br />
1.5<br />
1<br />
Use Factor Beds, Rooms,<br />
Outlets<br />
100<br />
100<br />
75<br />
25<br />
10<br />
10<br />
100<br />
100<br />
25<br />
50<br />
10<br />
75<br />
10<br />
25<br />
100<br />
25<br />
10<br />
10<br />
20<br />
50<br />
50<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
SCFM<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00
7. EEG and EKG<br />
8. Birthing and LDRP<br />
9. Patient isolation room<br />
Other Patient Rooms<br />
Anesthesia workroom<br />
Respirator care<br />
workroom<br />
Nursery workroom<br />
Equipment repair<br />
Med. Laboratory 3<br />
1.<br />
2.<br />
3.<br />
4.<br />
5.<br />
6. Autopsy<br />
7. Sterile supply<br />
8. Plaster room<br />
9. Pharmacy<br />
Future Expansion<br />
Note:<br />
0.5<br />
1<br />
1.5<br />
1.5<br />
1.5<br />
1.5<br />
1<br />
1<br />
1<br />
1<br />
1<br />
1.5<br />
50<br />
50<br />
25<br />
10<br />
10<br />
10<br />
10<br />
25<br />
100<br />
10<br />
50<br />
10<br />
0<br />
0<br />
0<br />
PEAK CALCULATED DEMAND IN SCFM<br />
BASED ON FREE AIR SCFM @ 50PSI:<br />
1. The SCFM above is based on a peak OUTLET demand of 50 psi. <strong>Air</strong> compressors operate at 100 psi. When<br />
sizing a compressor, you MUST figure the compressor capacity for operation at 100 psi.<br />
2. You need to consider several environmental factors when sizing the compressors. These include altitude,<br />
intake air temperature, and relative humidity. Variance among these factors has considerable effect on<br />
compressor selection.<br />
3. <strong>Air</strong> outlets in labs used for analysis, research or teaching should be supplied by a separate compressed air<br />
system, not the medical air system.<br />
4. All sizing methods are only approximations and should be used judiciously. If an existing compressor is<br />
being replaced, the operating characteristics of that compressor can be an important gauge of likely future<br />
use. For example, if an existing 5 HP compressor provides an ample amount of medical air, but the<br />
sizing tables yield much larger requirements; it may be suitable to use a smaller compromise unit as<br />
opposed to simply relying on the results from the <strong>Amico</strong> Sizing Guide.<br />
6.3.4 Altitude Adjustments<br />
If the compressor is to be operated at higher elevations, the peak calculated demand should be multiplied by the<br />
corresponding correction factor. Specifically, at altitudes above sea level, all medical air systems have reduced flow.<br />
In such cases, the required sizing will need to be adjusted by taking the total PCL (SCFM) and multiplying it by the<br />
correction factor (See Figure 3 below).<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
0.00<br />
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Figure 3: Altitude Compensation Chart<br />
Altitude Multiplier Used for Required SCFM(Hg)<br />
Sea Level 1.00<br />
1000 ft. (305 m) 1.01<br />
2000 ft. (609 m) 1.03<br />
3000 ft. (900 m) 1.05<br />
4000 ft. (1219m) 1.06<br />
5000 ft. (1525 m) 1.08<br />
6000 ft. (1828 m) 1.10<br />
7000 ft. (2133 m) 1.12<br />
8000 ft. (2438 m) 1.15<br />
9000 ft. (2743 m) 1.17<br />
10,000 ft. (3048 m) 1.19<br />
6.3.5 “Future expansion” Compensation<br />
The notion of adding capacity now for any future requirements is wise, but extreme caution IS also advised. It<br />
is common to see very badly oversized air plants which were initially sized to accommodate an expansion that<br />
never occurred or that was scaled back and was not compulsory after all. In addition to the waste of investment, it<br />
generates problems associated with the operation of the system. The best method in preparing for an anticipated<br />
expansion is to opt for a plant which is adequate for the present need in a duplex or triplex system but can also<br />
be upsized for future need by simply adding additional compressors as required. When specifying for the unit,<br />
require it be purchased in preparation for additional compressor(s) yet not populated with those compressors. A<br />
representative specification would read: “provide duplex medical air plant with triplex controls and air treatment<br />
subsystem ready for a future third compressor”. Such a system provides an effective method of expanding the system<br />
capacity, is more capital-efficient, and yields better operating characteristics and reliability when it comes to air<br />
quality control. Nevertheless, it is fundamentally important that the intake, electrical service, and system piping are<br />
correctly sized for the entire expected capacity, so these larger values should be used in all calculations.<br />
6.3.6 Plant Selection<br />
1. Select a preferred technology (See Sec 6.3.9). More specific assistance in selecting a technology may be<br />
obtained by contacting your Local <strong>Amico</strong> Source representative.<br />
2. Choose a Horsepower from the preferred technology with the capacity closest to (but typically greater than)<br />
the Peak Calculated Load (PCL).<br />
3. Note that for some technologies, there is more than one plant architecture. Should one or more layout be<br />
available for selection, choose the one best suited to the site conditions. If in doubt as to which arrangement<br />
is most suitable for a particular situation, contact your Local <strong>Amico</strong> Source representative for assistance.<br />
4. Reference the Technology Comparison Chart for the particular system selected. This sheet entails all the<br />
essential information regarding the system and should be utilized as a quick reference in all of the following<br />
steps.<br />
<strong>Amico</strong> Source Equipments
6.3.7 General Layout<br />
1. Place the plant in scale on the plan drawings in the designated location. Ensure that the plant has sufficient<br />
space on all sides for maintenance access and proper ventilation. <strong>Amico</strong> Source recommends 2 ft. (24”)<br />
minimum clearance on all sides, 3 ft (36”) in front of the control panel, but it is sometimes possible to reduce<br />
this clearance with exact knowledge of maintenance access requirements. Consult your Local <strong>Amico</strong> Source<br />
representative if circumstances allow for less space.<br />
2. Place the equipment in elevation views as appropriate.<br />
3. On the plan, finalize the routing for the intake.<br />
4. Size the intake piping. The sizing process is iterative:<br />
a. Start with the total actual length of piping, and make an estimate for the line size (See Figure 4).<br />
b. By using your estimated size, add equivalent lengths for the fittings employed.<br />
c. Check that the size of the intake piping is still suitable at the new equivalent length. Should there be<br />
any discrepancies, re-estimate the next larger size and repeat the steps above. The line may also be<br />
sized more precisely by conducting an actual calculation. Intake piping must be sized to induce no<br />
more than 4 inches water column vacuum at the compressor when all compressors are operating.<br />
(Use total capacity for this calculation with all compressors running).<br />
For unusual lengths or other circumstances, please contact your Local <strong>Amico</strong> Source representative<br />
for assistance.<br />
5. Finalize the connection to the distribution piping and size the system piping.<br />
6.3.8 Specification<br />
1. Select the sections appropriate to the technology and system layout desired.<br />
2. Note into the specification any exceptional requirements (soft starters, etc.) that are necessary.<br />
3. Schedule in the drawings the medical air plant selected.<br />
Schedule at least:<br />
a. The capacity per compressor (per NFPA) and total system capacity.<br />
b. Horsepower per compressor.<br />
c. Voltage, Hz, and phase desired.<br />
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6.3.9 Technology Comparison Chart<br />
<strong>Amico</strong> Source offers several technologies for medical air, each of which has its own advantages and drawbacks. This<br />
page summarizes these as an aid in the selection of the correct technology for your specific application.<br />
<strong>Amico</strong> Source Equipment<br />
Characteristics Scrolls Reciprocating<br />
Size • 10 HP • 10 HP<br />
Format • Modular Stacking • Modular Stacking<br />
• Horizontal Tank Mount • Horizontal Tank Mount<br />
• Skid Mount • Skid Mount<br />
dBa@10 HP • 73 • 84<br />
Maximum Pressure • 125 psig (862 kPa) • 120 psig (827 kPa)<br />
SCFM @120 psig • 32.0 ICFM • 34.8 SCFM<br />
LPM@828 kPa • 798 L/Min • 985 L/Min<br />
Advantages • Compact and low weight • Customizable<br />
• Easy to maintain configuration<br />
• Reliable • Extremely reliable<br />
• Low noise level • Best efficiency CFM/HP<br />
(Very quiet and vibration free)<br />
Disadvantages • Less convenient when • Louder than scroll<br />
servicing large capacities
6.4 Medical <strong>Air</strong> <strong>System</strong>s Glossary<br />
Definitions<br />
ACFM • Actual Cubic Feet per Minute is an expression of actual air volume,<br />
generally corrected for and reference to a particular pressure.<br />
ICFM • Conditions at the inlet of the compressor prior to any restrictions or<br />
temperature changes. (i.e., inlet filters, inter-coolers, discharge manifolds<br />
etc).<br />
Continuous Duty • Operational reference to compressors operating 24 hours a day,<br />
continuously.<br />
Continuous Duty • <strong>Air</strong> compressors which can operate continuously (24 hours per day) if<br />
Rated necessary but normally only operate on demand.<br />
Desiccant Dryer • Consists of two towers, whereby the desiccant bed in one tower dries the<br />
air stream while a purge of dry air regenerates the desiccant bed in the<br />
other tower.<br />
Dew Point • Temperature and pressure at which medical air will condense water<br />
vapor into liquid water within the medical air pipeline system.<br />
Dew Point/CO Monitor • Monitors dew point and carbon monoxide levels in medical air.<br />
Displacement • Theoretical physical volume of the air in the compressor chamber based<br />
upon 100% pumping efficiency, with no allowances made for heat,<br />
friction, clearances, or other losses in the compression cycle.<br />
Duplex <strong>System</strong> • <strong>System</strong>s comprised of two (2) compressors, each rated for 100% Peak<br />
Calculated Load (PCL).<br />
LPM • Abbreviation for Liters per minute; a measure of the flow rate of a gas.<br />
NTP • “Normal Temperature and Pressure”, generally accepted as 70˚F (20˚C),<br />
14.969 psi/29.92” Hg barometric pressure, and 36% relative humidity.<br />
Oil-Free <strong>Compressor</strong> • <strong>Compressor</strong> with oil within the compressor but absent from the<br />
compression chamber by means of seals and visible vented distance<br />
piece, and a dry compression chamber.<br />
Oil-Less <strong>Compressor</strong> • <strong>Compressor</strong> with no oil contained within the compressor.<br />
Peak Calculated • The maximum estimated demand a medical facility will require of a<br />
Load (PCL) medical air system.<br />
• Calculated at SCFM at 100 psig.<br />
SCFM • Standard Cubic Feet Per Minute is an expression of air at NTP.<br />
Simultaneous Demand • Operating reference to a condition where all compressors (Lead and Lag<br />
compressors) run simultaneously to satisfy demand in excess of lead<br />
compressor(s) capability.<br />
Triplex <strong>System</strong>s • Medical air system with three compressors (3), each sized for 50% PCL.<br />
Quadruplex <strong>System</strong> • Medical air system with four compressors (4), each sized for 33% PCL.<br />
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6.4.1 Summary of NFPA 99 Specification (<strong>Air</strong> <strong>Compressor</strong>s <strong>System</strong>)<br />
PART 1 – GENERAL (Medical <strong>Air</strong>)<br />
RELATED DOCUMENTS: Drawings and general provisions of the Contract, including general and supplementary<br />
conditions and Division I specification section, apply to this section.<br />
SUMMARY EXTENT OF WORK<br />
A. This section pertains to all labor, equipment and services necessary for and complementary to the<br />
installation of piped medical gas and vacuum systems (PMGVS) including: oxygen, medical air, medical<br />
vacuum, waste anesthesia gas disposal (WAGD), nitrogen, instrument air, nitrous oxide, helium, carbon<br />
dioxide, argon, dental air, dental vacuum, laboratory air and mixed gas systems as shown on the drawings<br />
and/specified herein.<br />
<strong>Amico</strong> Source Equipment<br />
1. Oxygen systems shall be complete to the source valve, ready for connection to the bulk gas supply<br />
system.<br />
2. Medical Vacuum, WAGD and Medical <strong>Air</strong> systems shall be complete, started, tested and ready for<br />
use.<br />
3. Nitrous Oxide, Nitrogen, Carbon Dioxide, Helium, Argon and Mixed Gas. <strong>System</strong>s shall be complete,<br />
tested and ready for use.<br />
PERFORMANCE REQUIREMENTS<br />
A. All materials used shall be new and of the best grade and quality available and workmanship shall be first<br />
class in every respect. Contractor shall be accountable for compliance with all Local, State or<br />
Federal codes.<br />
B. Provide all elements and accessories required for complete systems per latest edition of NFPA 99.<br />
C. Contractor shall make all necessary connections to owner furnished equipment.<br />
D. Install all piping as shown on Drawings, described herein and as described in Section 15050, Basic Materials<br />
and Methods, using methods of fabrication, grading, testing, repairing, cleaning and other procedures.<br />
E. Electrical power wiring for vacuum pump(s), medical air compressor(s), WAGD Producer(s), ceiling columns,<br />
alarms, and modular accessories associated with the system(s) shall be part of the electrical contract. Any<br />
equipment supplied by a contractor requiring additional electrical services shall be the responsibility of the<br />
contractor to supply these services.<br />
F. Perform Installer pressure testing, cross connection testing and final testing per NFPA 99 most recent edition<br />
and using procedures as specified.<br />
Specifiers; if contractor will retain Verifier, use this paragraph:<br />
G. Retain a qualified third party verifier acceptable to the engineer and owner to perform and attest to final<br />
verification of the systems. Make corrections as needed, including additional testing in order to illustrate full<br />
and unqualified certification.
OR if Owner will retain Verifier, use this paragraph;<br />
G. Coordinate with owner retained verifier for final verification of the systems. Make corrections as needed,<br />
including additional testing if necessary to illustrate full and unqualified certification.<br />
COORDINATION<br />
A. Medical Gas Contractor shall coordinate with other trades to ensure timely installations and evade conflicts<br />
and interference.<br />
B. Work with metal stud partition installer and/or mason to ensure anchors, sleeves and similar items are<br />
provided in sufficient time to avoid delays; chases and openings are properly sized and prepared.<br />
C. Coordinate with owner to ensure medical gas outlets, whether owner supplied or contractor supplied, in<br />
walls, ceilings and all equipments are provided by the same Medical Gas Equipment Manufacturer (MGEM)<br />
are satisfactory to the owner.<br />
D. Coordinate with bulk cryogenic gas supplier for installation, connection and verification of bulk gas supply<br />
systems.<br />
E. Medical Gas Contractor shall supply and install the master alarm system (including the signal wiring). The<br />
electrical contractor shall provide power wiring to each alarm panel. Medical Gas Contractor is accountable<br />
for proper termination, testing and marking of alarm panels. Termination shall be done by or under the<br />
supervision of the manufacturer of alarm panels.<br />
F. Coordinate with Medical Gas Verifier to deliver a complete, tested medical gas installation ready for owner’s<br />
use.<br />
SUBMITTALS<br />
A. Furnish the following as one package:<br />
1. Medical Gas Equipment Manufacturer (MGEM) submittals shall include at least or at a minimum of<br />
the following:<br />
a. Complete specifications for the product intended to be installed, dimensional drawings,<br />
and wiring schematics where appropriate.<br />
b. For other medical gas products include:<br />
i. Package drawing indicating package style, dimensions when complete, method of<br />
disassembly and sizes of subsections for rigging and installation.<br />
ii. <strong>Compressor</strong> and package capacity expressed in CFM.<br />
iii. Lubrication method (if any).<br />
iv. Drive detail including adjustment method.<br />
v. Motor including frame type, service factor, horsepower, current draw, and RPM.<br />
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vi. <strong>Air</strong> filters including type and replacement element.<br />
vii. Pressure regulators including type and manufacturer.<br />
viii. Dew point monitor including technology employed, calibration interval, and annual<br />
drift in degrees.<br />
ix. Carbon monoxide monitor including technology employed, calibration interval,<br />
and annual drift in ppm.<br />
x. <strong>Air</strong> dryers, type, manufacturer, and design dew point at least -40˚F (-40˚C) at 100<br />
psig (689 kPa).<br />
xi. Sound pressure in dB (A) when operated within the capacity as stated in the NFPA 99.<br />
xii. Heat output (BTU) for the equipment.<br />
c. For other medical gas products include:<br />
i. Outlet keying system.<br />
ii. Alarms networking instructions.<br />
d. Complete installation instructions for the use of the installer.<br />
e. Statement of specific compliance with paragraphs of NFPA 99 most recent edition as<br />
relevant to the equipment and as listed in those sections.<br />
f. Complete maintenance schedules.<br />
g. Warranty statement which must encompass all system components. Warranties covering<br />
only specific components or containing exclusions are not acceptable.<br />
h. Name and contact information for installation assistance, start up, warranty and service.<br />
i. Description of available Preventative Maintenance Programs for Owners review.<br />
j. Information on training programs available to maintenance personnel for Owners review.<br />
B. Medical Gas Verifier Submittals shall include:<br />
1. Name, contact information, and reference list. Reference list should include no less than three<br />
references on projects of similar size and complexity.<br />
2. A notarized confirmation from the verifier stating that the verifier undertakes to validate this project<br />
and thus agrees to disqualify themselves from supplying any equipment which will be included in<br />
the scope of their verification. No verifier who supplies equipment shall be permitted to verify that<br />
equipment.
3. Statement declaring that the MGEM has no fiduciary interest in the verifier and that the verifier is<br />
not an agent or representative of the MGEM.<br />
4. Statement declaring that the installing contractor has no fiduciary interest in the verifier and that<br />
the verifier has no fiduciary interest in the contractor.<br />
C. Pre-approval<br />
1. Written preapproval is required for equipment not exactly matching specifications. Submit the<br />
information required under Submittals above, attaching a cover letter stating the exact areas of<br />
deviation.<br />
2. A request for preapproval of equipment must be received by the Engineer no less than three days<br />
(72 hours) prior to bid.<br />
QUALITY ASSURANCE<br />
A. Regulatory Requirements<br />
1. Electrical Control systems and Medical Gas Alarms are to be UL listed as assemblies with label<br />
affixed.<br />
2. Medical air, instrument air, medical vacuum and WAGD controls are to be wired in accordance with NEC.<br />
3. All air purification components shall be in compliance with CAGI performance verification as per ISO<br />
8573.1 standards.<br />
4. MGEM will include with submittals an affidavit attesting to compliance with all relevant paragraphs<br />
of NFPA 99 most recent edition.<br />
5. MGEM personnel assembling medical air, instrument air, vacuum and WAGD plant shall meet the<br />
latest edition of NFPA 99 “Qualification of Installers” section and hold medical gas endorsements as<br />
under ASSE 6010.<br />
6. The Contractor shall furnish documentation demonstrating that all installed piping materials were<br />
purchased cleaned and complied with the requirements of NFPA 99 5.1.10.1 and 5.1.10.2.<br />
7. The Contractor shall furnish copies of ASSE 6010 qualifications for all workers installing medical gas piping.<br />
B. Installation and Start-up<br />
1. The MGEM will provide authorized representatives to review installation and perform<br />
initial start-up of the system.<br />
C. Warranty<br />
1. Warranty will be expressly complete, include all components of the system and be the responsibility<br />
of the MGEM for record only. Warranties limiting the responsibility of the MGEM for any system<br />
component for which pass through the MGEM to another manufacturer are not acceptable.<br />
2. All source medical gas components shall be warranted by the MGEM of record for a minimum of 30<br />
months from date of shipment.<br />
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3. Warranties shall include on site repairs including travel, labor and parts.<br />
4. Shipping and installation costs after the first 12 months will be borne by the customer.<br />
D. Verification:<br />
1. Medical Gas Contractor shall deliver to the owner a complete system certification.<br />
PART 2 - PRODUCTS<br />
QUALIFICATION OF MANUFACTURER(S)<br />
A. The Medical Gas Equipment Manufacturer (MGEM) shall supply all of the medical-gas system(s) and shall be<br />
the manufacturer of the outlets, valves and gauges, valve boxes, alarm panels, manifolds, medical air,<br />
instrument air, vacuum and WAGD sources.<br />
B. The MGEM shall have a product specialist available to periodically check with the contractor during<br />
installation of the pipeline systems equipment. MGEM shall provide service support to the hospital after<br />
turnover. Demonstrate factory trained service technician is available within 250 miles of facility.<br />
C. Approved MGEM: Piping <strong>System</strong>s Components and Medical Gas Alarms;<br />
1. <strong>Amico</strong> Corporation.<br />
2. Alternate by _____________ with pre-approval.<br />
D. MGEM shall have a minimum of 5 years of experience manufacturing medical air and vacuum systems.<br />
E. Written pre-approval is required for all equipment from other manufacturers.<br />
MEDICAL AIR COMPRESSOR SYSTEMS<br />
Specifier: Determine the size of medical air plant required and place on the medical gas schedule.<br />
1. Provide a complete medical air source, complying with all relevant requirements of NFPA 99 latest<br />
edition and supplying medical air continuously for the life of the equipment. The unit shall be<br />
manufactured by <strong>Amico</strong> or pre-approved equal.<br />
2. All components are at least duplexed and valved to allow servicing to any components devoid of<br />
interruption to the air supply of the facility.<br />
3. Furnish a complete plant consisting of compressors, receiver, air treatment system and controls<br />
capable of providing scheduled capacity with one compressor out of service.<br />
4. <strong>System</strong> is modular or field separable, allowing for ease of shipment and handling on site. <strong>System</strong> is<br />
completely factory assembled, requiring only interconnection between modules on site. <strong>System</strong>s<br />
requiring site assembly other than interconnection are not acceptable (remounting of components<br />
removed for shipping is permitted).<br />
5. The compressor modules and motors shall be fully isolated from the main compressor base by<br />
means of a four point, heavy-duty seismic restrained approved isolation system for a minimum<br />
of 95% isolation efficiency. Engineering data shall be provided to support isolation efficiency and<br />
equal weight distribution between supports. Pumps not having this feature shall have an inertia<br />
base sized for that system installed at this contractor’s expense.
6. All air systems will be equipped with a CO monitor. The monitor will have an alarm to: i) Alarm if the<br />
level of CO exceeds 10 parts per million by volume (ppmv) and ii) Alarm and system shutdown.<br />
A. <strong>Air</strong> <strong>Compressor</strong>s<br />
Specifier: select the paragraph below reflecting the preferred technology:<br />
SCROLL COMPRESSORS<br />
1. The compressors shall be a continuous duty rated scroll type with sealed bearings. The design shall<br />
be single stage, air-cooled, consisting of one fixed and one orbiting scroll sealed with PTFE tip seals<br />
between the scroll halves and rated for 120 PSIG discharge pressure. Orbiting bearings shall be<br />
grease filled and with permanently sealed type requiring no lubrication at any time. Units requiring<br />
re-lubrication are not acceptable. Oil-less type compressor. Noise level shall not exceed 75dB (A) for<br />
duplex system, 77dB (A) for triplex system, and 79 dB (A) for quad system with pumps running at<br />
peak demand.<br />
2. On multiple head applications, belt tightening devices are included.<br />
3. Each compressor shall be equipped with an integral air-cooled after cooler designed for a maximum<br />
approach temperature of 15.0°F complete with electronic drain valve.<br />
4. The discharge of piping of each compressor shall incorporate an integral valve to prevent more than<br />
1/4 revolution of reverse rotation of the scroll at shutdown.<br />
5. <strong>System</strong> piping shall be brazed except where unions are required for service. Vibration flexes shall be<br />
made of metal and of sufficient length to achieve full isolation.<br />
6. All required Type “K” or “L” copper tubing or brass to interconnect all compressor set components,<br />
with unions for ease of servicing.<br />
7. The shaft driven radial fan with shroud for air cooling.<br />
8. <strong>Compressor</strong> motors shall be a NEMA rated, open drip proof unit with 1.15 service factory suitable for<br />
_____ Volt, _____ Phases, ____Hz.<br />
9. All moving parts (fans, pulleys and belts) shall be fully protected by an OSHA approved enclosure.<br />
10. Monitor and numerically display the discharge air temperature at each compression chamber<br />
outlet port.<br />
11. Initiate an alarm and shut down the compressor if discharge temperature exceeds the<br />
manufacturer’s recommended level.<br />
RECIPROCATING COMPRESSOR<br />
1. The compressors shall be single stage, air cooled, and reciprocating type with corrosion resistant valves<br />
with stainless steel reeds. Crankcase ventilation shall be filtered to prevent dust and insects from<br />
entering the crankcase. All bearings shall be permanently lubricated and sealed; compressors that<br />
require bearings to be re-greased are not acceptable.<br />
2. Each compressor shall be equipped with an integral air-cooled after cooler designed for a<br />
maximum approach temperature of 15.0°F, complete with electronic drain valve.<br />
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3. All required type “K” copper tubing or brass pipe to interconnect all compressor set components,<br />
with unions for ease of servicing.<br />
4. <strong>Compressor</strong> motors shall be a NEMA rated, open drip proof unit with 1.15 service factor suitable for<br />
_______ Volt, ____ Phase, ___Hz.<br />
5. All moving parts (fans, pulleys and belts) shall be fully protected by an OSHA approved enclosure.<br />
6. All support structures shall be a minimum of 10 Gauge Steel.<br />
B. Receiver:<br />
The receiver for a medical compressor system is to be made of ferrous and/or non-ferrous materials, be capable of<br />
withstanding a gauge pressure of 200 psi or greater. The receiver shall be sized in accordance with the requirements<br />
of the medical air compressor system and the calculated system design flow, and in compliance with all the<br />
requirements of Section VIII, unfired pressure vessels of the ASME Boiler and Pressure Vessel Code. The receiver shall<br />
also include:<br />
1. Receiver shall be epoxy-lined.<br />
2. Automatic and Manual drain valves.<br />
3. Liquid level gauge.<br />
4. Safety relief valve.<br />
5. Screened automatic solenoid valve.<br />
6. Test valve & Muffler.<br />
7. Equipped with a means of bypassing to allow repair without interruption to the system.<br />
C. Piping and Control Components<br />
The piping and control components for each compressor shall include:<br />
1. Intake filters.<br />
2. A non-return valve on the outlet.<br />
3. Flexible inlet and outlet couplings.<br />
4. Inlet and outlet shut-off valves.<br />
5. Pressure relief valve (s).<br />
6. A condensate separator and drain.<br />
7. An unloader valve.<br />
8. A means of removal of the compressor for service or replacement without interruption to the<br />
system.<br />
The air source for the compressor shall be outdoor air and the intake shall be:<br />
a. At least 10 ft. (3 m) away from any door, exhaust, other intake or operable window.<br />
b. At least 20 ft. (6.1 m) above grade.<br />
c. The intake opening shall be turned downward, screened, and shall be accessible to authorized<br />
personnel for cleaning, inspection and servicing.<br />
d. Placed in a location where it will not draw in contamination from exhaust systems<br />
(e.g. contamination from furnaces, gasoline or diesel engines, vacuum systems, or scavenging<br />
systems).
e. Consideration shall be given to the potential effect of prevailing winds and possible sources of<br />
airborne contamination and potential obstruction by accumulated snow.<br />
f. Piping downstream of the compressor shall be routed in such a way that it is not subjected to a<br />
temperature lower than 40˚F (4˚C).<br />
g. <strong>Compressor</strong> intake piping shall be made of materials approved for vacuum piping compliant with<br />
the latest NFPA 99 edition. In addition, the piping materials are assured to not contain contaminants<br />
in the form of particulate matter, odor, or other gases.<br />
D. Control Panel and Alarm Sensors<br />
The control system is U.L. labeled. The control system provides automatic lead/lag sequencing and automatic alternation<br />
of pumps based on first-on/first-off principle with provision for simultaneous operation if required. Automatic activation<br />
of reserve unit, if required, will activate an audible alarm as well as a visual alarm on the display screen.<br />
1. Control Panel Features:<br />
Only panel components that are commercially available and not of propriety design will be considered.<br />
a. NEMA 12 control panel enclosure.<br />
b. Full voltage motor starter shall be UL 508 E self-protected combination starters with overload<br />
protection and external operators.<br />
c. Door interlock disconnect switch.<br />
d. 90 dB alarm buzzer.<br />
e. Visible indicator of “power on” and “compressor running” for each compressor.<br />
f. Two control transformers with secondary circuit breaker.<br />
g. Manual / Off Auto selector switches (Each <strong>Compressor</strong>).<br />
h. Transducer and RTD based control panel.<br />
i. The RTD will digitally display the running temperature of each discharge port and shall be field<br />
programmable to standard manufacturer’s operating parameter.<br />
j. The calibration of the pressure transducer can be set so a non-standard transducer can be used.<br />
2. Touch screen controls feature a minimum 5.7”screen. Screen displays and functions include:<br />
a. WinCE 5.0 operating system.<br />
b. OPC, TCP/IP and Communication drivers.<br />
c. Ethernet connectivity with embedded web-page for remote monitoring, multi-level password<br />
protected remote adjustment of all operating parameters.<br />
d. Electronic notifications of alarms and warnings.<br />
e. Communication expansion capability to talk over five Networks/Protocols.<br />
f. Service alerts, runtime hour meters for each pump, system status, system vacuum level all shall be<br />
displayed.<br />
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g. Visual/audible indications with isolated voltage free contacts for all alarm.<br />
h. Event log recording of alarms and system activity.<br />
i. Event log recording of service warnings and service history.<br />
j. Trend graphs for compression level, compressor operations, and ambient temperature .<br />
k. Adjustable settings to accommodate user needs.<br />
3. Panel designed with selectable options to fully match applications.<br />
a. All system settings shall be user adjustable and accessible with the system in operation and the<br />
control panel door closed (password protected).<br />
b. Adjustments can be made to pressure settings to match the customers’ requirements.<br />
c. All alarms to require manual reset.<br />
Specifier: select the paragraph below reflecting the preferred technology:<br />
Standard alarms shall open on failure with local audible and visual alarms with dry contacts for the following<br />
conditions:<br />
4. SCROLL COMPRESSOR<br />
a. Lag pump in use<br />
b. High dew point<br />
c. High CO level<br />
d. High discharge air temperature<br />
e. Main transformer failure<br />
f. Motor overload<br />
4. RECIPROCATING COMPRESSOR<br />
a. Lag pump in use<br />
b. High dew point<br />
c. High CO level<br />
d. High discharge air temperature<br />
e. Main transformer failure<br />
f. Motor overload
E. <strong>Air</strong> Treatment Centre<br />
Provide redundant medical air treatment systems including desiccant dryers, filters, and purifiers sized for peak<br />
calculated demand. Dew point and carbon monoxide monitoring Medical <strong>Air</strong> Treatment shall include:<br />
1. Desiccant dryers producing a -40˚F (-40˚C) pressure dew point.<br />
2. Dryer purge flow control through an integral dew point based purge control system. Purge<br />
controllers using desiccant temperature are not acceptable. Drying units shall provide a numerical<br />
indication of the outlet dew point and initiate an alarm when the outlet dew point exceeds the<br />
manufacturer’s pre-set limit.<br />
3. Mounted pre-filter with corrosion-resistant housing rated for 0.01 µ with automatic drain and<br />
element change indicator at the inlet to each dryer.<br />
4. Final line filters rated for 0.1 µ particulate after filter with element change indicators, duplexed final<br />
line regulators, and duplexed safety relief valves shall be factory mounted and piped at the outlet of<br />
each dryer.<br />
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6.5 Quick Guide to Configuration<br />
Modular Stacking Configuration<br />
New “A-Frame”, modular stacking configuration allows two<br />
compressors to run simultaneously with smaller footprint<br />
and compact design. <strong>Compressor</strong> assemblies include at<br />
least one compressor and one motor.<br />
Horizontal Tank Mount<br />
The compressors are mounted on a horizontal tank which<br />
is large enough to accommodate bigger compressors and<br />
accessories than the Space Saver. The system is factory<br />
piped and wired to a single inlet, outlet and electrical<br />
connection.<br />
Skid Mount<br />
These systems are mounted on separate skid. This<br />
configuration is suitable for larger compressors. This type<br />
of air system is also designed for ease of transportation.<br />
<strong>Amico</strong> Source Equipment
6.6 Medical <strong>Air</strong> <strong>System</strong> Inlet<br />
Below is a summary of the requirements for the medical air system inlet locations.<br />
1. Locate the medical air inlet in an area where there will not be potential hazards such as<br />
contamination from engine exhausts, fuel storage vents; toxins or hazardous contaminants, such as<br />
ethylene oxide (ETO) gas exhaust vents, medical vacuum exhaust vents, particulate matter or odor<br />
of any type.<br />
2. Locate the medical air inlet outdoors above the roof level a minimum distance of 10 ft. (3 m) from<br />
any door, window, exhaust, other intake or opening in the building, and a minimum distance of<br />
20 ft. (6.1 m) above the ground. Intakes shall be turned down and screened or otherwise be<br />
protected against the entry of vermin or water, with screening that is to be fabricated from or<br />
composed of non-corrosive material such as stainless steel or other suitable material.<br />
3. If a source is available that is equal to or superior to outside air (For example, air already filtered for<br />
use in the operating room ventilation systems), it shall be permitted to be used for the medical air<br />
compressors. This alternative source of supply air must be available on a continuous 24-hours-a-day,<br />
7-days-per-week basis. Ventilating systems having fans with motors or drive belts located in the air<br />
stream shall not be utilized as a source of medical air intake.<br />
4. Medical air intakes for separate compressors shall be permitted to be joined together to one<br />
common intake, provided such intake is appropriately sized.<br />
5. Figure 4 details the minimum inlet pipe sizing required based on the medical air system<br />
horsepower, configuration, and the total pipe length (including elbows) in the medical air intake<br />
line.<br />
a. The medical air intakes are joined together to one common intake.<br />
b. All pipe sizes are based on copper pipe Type L.<br />
c. Minimum pipe size must be preserved for the total length of inlet pipe.<br />
d. Use the next larger size pipe in the event the minimum size is not available.<br />
e. When determining the Total Pipe Length (TPL), add all straight lengths of pipe together plus<br />
the number of elbows multiplied by the effective pipe length for that pipe size.<br />
(See Figure 4).<br />
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Figure 4. Medical <strong>Air</strong> <strong>Compressor</strong> <strong>System</strong> Intake Pipe Sizing<br />
Unit Flow Basis<br />
SCFM@50 PSI<br />
(LPM@345kPa)<br />
Duplex 1 Hp<br />
Duplex 2 Hp<br />
Duplex 3 Hp<br />
Duplex 5 Hp<br />
Duplex 7.5 Hp<br />
Duplex 10 Hp<br />
Triplex 7.5 Hp<br />
Duplex 15 Hp<br />
Triplex 10 Hp<br />
Quad 7.5 Hp<br />
Duplex 20 Hp<br />
Triplex 10 Hp<br />
Triplex 15 Hp<br />
Triplex 20 Hp<br />
Quad 15 Hp<br />
Quad 20 Hp<br />
<strong>Amico</strong> Source Equipment<br />
Nominal Pipe Size 1.0”<br />
Allowable Equivalent Run (Feet)<br />
1.25”<br />
30<br />
12<br />
1.5”<br />
70<br />
30<br />
10<br />
8<br />
2.0”<br />
5.0<br />
(141.6) 68 200 500 2000<br />
12.2<br />
(345.5)<br />
22 65 180 650<br />
18.4<br />
(521)<br />
30.2<br />
(855)<br />
44.2<br />
(1252)<br />
66.3<br />
(1877)<br />
108<br />
(3058)<br />
120.8<br />
(3421)<br />
132.6<br />
(3755)<br />
181.2<br />
(5131)<br />
241.6<br />
(6841)<br />
660<br />
(18689)<br />
880<br />
(24919)<br />
290<br />
120<br />
60<br />
35<br />
16<br />
2.5”<br />
1800<br />
850<br />
360<br />
180<br />
110<br />
48<br />
28<br />
25<br />
13<br />
3.0”<br />
2200<br />
890<br />
450<br />
250<br />
120<br />
70<br />
60<br />
33<br />
19<br />
4.0” 5.0” 6.0”<br />
Fittings Equivalent Lengths<br />
Nominal Pipe Size 1.00” 1.25” 1.50” 2.00” 2.50” 3.50” 4.00” 5.00” 6.00”<br />
Elbows<br />
2.5” 3.0” 4.0” 5.5” 7.0” 9.0” 12.5” 16.0” 19.0”<br />
Tee (Branch/Run) 4.5’/- 5.5’/.5’ 7’/.5’ 9’/.5’ 12’/.5’ 15’/1’ 21’/1’ 27’/1.5’ 34’/2’<br />
1000<br />
480<br />
280<br />
250<br />
130<br />
80<br />
20<br />
13<br />
1400<br />
810<br />
750<br />
400<br />
240<br />
60<br />
40<br />
1800<br />
1000<br />
600<br />
140<br />
95
Figure 5: Example 1 Calculating SCFM<br />
After interviewing the hospital engineer, you find that the facility; which is located 2,000 feet above sea level, has 5<br />
minor Operating Rooms, 6 ICU Ventilators, 18 ICU Beds, and 12 Recovery beds. They also want to have a 25% future<br />
expansion. Calculate the total PCL for the facilities Medical <strong>Air</strong> system.<br />
Area<br />
Minor Surgery<br />
ICU Ventilators<br />
ICU 3<br />
ICU 3<br />
Quantity<br />
5 Rooms<br />
6 Units<br />
12 beds 3<br />
12 beds<br />
Facility PCL Requirements (SCFM)<br />
Future Expansion (25%)<br />
Facility PCL with Future Expansion (SCFM)<br />
Altitude Compensation @ 2,000 ft… (From Figure 3)<br />
Total Facility PCL Requirements (SCFM)<br />
1. Based on the typical ventilator requirements for “specific ventilator requirements”, check with<br />
ventilator manufacturer.<br />
2. If the number of ventilators in the hospital is unknown, allow one ventilator per bed for 75% of the<br />
available ICU/NICU beds.<br />
3. The ICU area has 18 beds and 6 ventilators. The flow required for the ventilators supersedes that of<br />
the ICU beds, so only 12 of the ICU beds are counted and added to the 6 ventilator requirements<br />
when determining total facility requirements.<br />
NOTE: **TO convert SCFM to LPM, multiply by 28.3<br />
x<br />
x<br />
x<br />
x<br />
Design Flow Simultaneous Use Total SCFM<br />
0.5 x<br />
75 1.9<br />
3.5 x<br />
100 21<br />
2 x<br />
100<br />
21<br />
2 x<br />
50<br />
12<br />
4. After reviewing Figure 5 for a capacity of 52.7 SCFM, the correct sized system would be a<br />
duplex 15 HP system.<br />
40.9<br />
25%<br />
51.1<br />
1.03<br />
52.7<br />
www.amico.com<br />
23
Oil Less<br />
SCROLL AIR WITH DESICCANT<br />
AIR TREATMENT<br />
<strong>Air</strong> <strong>Compressor</strong> <strong>System</strong><br />
24 <strong>Amico</strong> Source Equipment<br />
• Meets or exceeds the requirements of the latest edition of NFPA 99<br />
• Package shall include:<br />
- Oil-Less Scroll <strong>Air</strong> <strong>Compressor</strong>s<br />
- Dual Desiccant <strong>Air</strong> Dryer<br />
- One Receiver that complies to Section VIII, Unfired Pressure Vessels of the ASME Boiler and Pressure<br />
Vessel Code<br />
- One Touch Screen Control Panel<br />
• All components shall be completely pre-piped and pre-wired to single-point service connections<br />
• The only field connections required will be system intake, exhaust and power connection at the touch screen<br />
control panel (or between split systems)<br />
• All interconnecting piping and wiring shall be completed and operationally tested prior to shipment<br />
• Provide liquid tight conduit, fittings and junction boxes for all control and power wiring<br />
• <strong>System</strong> shall include:<br />
- Individual compressor inline intake filters<br />
- Discharge check valves of bronze construction<br />
- Safety relief valves<br />
- Intake and discharge flexible connectors<br />
- Isolation valves<br />
- <strong>Air</strong> cooled after coolers for each compressor<br />
- High discharge temperature sensor with numerical display and shut down<br />
- Pressure control transducer with automatic switch backup<br />
- Medical grade demand check valve for gauge, transducer and switches<br />
1
<strong>Air</strong> <strong>Compressor</strong><br />
Control Panel<br />
• UL listed control panel in a NEMA 12 enclosure with<br />
a 5.7” Touch Screen Display<br />
• Only panel components that are commercially<br />
available and not of propriety design<br />
will be considered<br />
• Our compressors include the following accessories:<br />
- Temperature sensor at each discharge port of<br />
the compressor with numerical display<br />
- Externally operable circuit breakers with door<br />
interlock per compressor<br />
- Control circuit transformers with fused primary<br />
and secondary circuit breakers<br />
- WinCE 5.0 operating system<br />
- Illuminated H-O-A switch<br />
- Magnetic starter with three leg overload protection<br />
- Hour meter and motor running light<br />
• Alarm contacts will be provided for remote<br />
annunciation for all alarm points<br />
• The compressors will be v-belt driven Oil-Less Rotary Scroll, single stage,<br />
air-cooled construction with absolutely no oil needed for operation<br />
(Available in 120 or 145 psi application)<br />
• Each compressor will be equipped with isolation valve, check valve,<br />
safety valve, electric motor, belts, belt guard, air cooled after cooler<br />
with separator, temperature sensor at each discharge port that is field<br />
adjustable<br />
• A-Frame, stackable scroll allowing two pumps to run simultaneously with<br />
smaller footprint allowing for compact design<br />
• 3600 RPM, premium efficiency motor<br />
• Means of removal of the compressor for service or replacement without<br />
interruption to the system<br />
<strong>Compressor</strong> Accessories<br />
• The system shall include:<br />
- Individual compressor inline intake filter<br />
- Non-return valve on the outlet<br />
- Flexible inlet and outlet couplings<br />
- Inlet and outlet shut-off valves<br />
- Pressure relief valve<br />
- Condensate separator and drains<br />
- Unloader valve<br />
• Audible and visual local alarms with dry contacts for<br />
the following:<br />
- Lag compressor in use<br />
- High Dew Point<br />
- High discharge air temperature<br />
- Main transformer failure<br />
- High carbon monoxide (CO) level<br />
- Motor overload<br />
• Provide manual reset for all alarms<br />
• All control and alarm functions shall remain<br />
energized while any pump in the system<br />
remains electrically on-line<br />
• Ethernet connectivity with embedded web-page for<br />
remote monitoring, password protected for remote<br />
adjustment of all operating parameters<br />
• Lag compressor shall be able to start automatically if<br />
the lead compressor fails to operate<br />
www.amico.com<br />
2<br />
25
Dryer/Filter/Regulator <strong>System</strong><br />
• An integral air treatment system with purge saving feature, NFPA 99<br />
system safety valves<br />
• The quality of air provided shall meet or exceed the following when<br />
– 1: 2001 validated in accordance with the requirements of ISO 12500-1 and<br />
includes 3rd PARTY VALIDATION PERFORAMNCE<br />
1. Maximum remaining oil content 0.01 mg/m 3 at 70ºF (21ºC).<br />
2. Particulate removal to 0.01 micron.<br />
3. Dew point [-4ºF medical breathing air applications or -100ºF -<br />
laboratory applications].<br />
4. <strong>Air</strong> provided shall conform to ISO 8573.1 Standard Class 1.3.1 –<br />
medical breathing air [1.1.1 – laboratory applications].<br />
• Completely pre-piped and prewired to single-point service connections<br />
• There shall be two identical banks of air treatment equipment, piped in<br />
replacement, maintenance and repair work while still treating medical<br />
compressed air through the other set<br />
Each bank consists of three<br />
stages:<br />
Stage 1:<br />
Stage 2: Desiccant heatless<br />
air dryer, equipped with purge<br />
control capable of attaining<br />
pressure dew point of -40ºF.<br />
The dry compressed air is<br />
discharged from the “online”<br />
tower into the 3rd stage<br />
Stage 3:<br />
pressure gauge along<br />
with downstream pressure<br />
regulators that will maintain<br />
constant discharge pressure of<br />
<strong>Air</strong><br />
Receiver<br />
• Receiver shall be rated for full<br />
compressor service and equipped with<br />
a liquid level indicator, electronic timed<br />
automatic drain, manual drain, safety<br />
relief valve<br />
• <strong>Air</strong> receiver should be rated for a<br />
minimum of 200 psig design pressure<br />
• The inside of the receiver consists of a<br />
two-part epoxy coating providing rust<br />
protection equal or better than that<br />
achieved by galvanizing<br />
• Three-valve by pass for service or<br />
replacement without interruption to the<br />
system<br />
<strong>Amico</strong> Source | 85 Fulton Way, Richmond Hill, ON, L4B 2N4, Canada Toll Free Tel: 1.877.462.6426 | Tel: 905.764.0800 | Fax: 905.764.0862<br />
26 <strong>Amico</strong> Source Equipment<br />
www.amico.com<br />
3
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<strong>Amico</strong> Source Equipment<br />
30
Oil Less<br />
RECIPROCATING AIR WITH DESICCANT<br />
AIR TREATMENT<br />
<strong>Air</strong> <strong>Compressor</strong> <strong>System</strong><br />
• Meets or exceeds the requirements of the latest edition of NFPA 99<br />
• Package shall include:<br />
- Oil-Less Reciprocating <strong>Air</strong> <strong>Compressor</strong>s<br />
- Dual Desiccant <strong>Air</strong> Dryer<br />
- One Receiver Compliant with Section VIII, Unfired Pressure Vessels of the ASME Boiler and Pressure<br />
Vessel Code<br />
- One Touch Screen Control Panel<br />
• All components shall be completely pre-piped and pre-wired to single-point service connections<br />
• The only field connections required will be system intake, exhaust and power connection at the touch screen<br />
control panel (or between split system)<br />
• All interconnecting piping and wiring shall be completed and operationally tested prior to shipment<br />
• Provides liquid tight conduit, fittings and junction boxes for all control and power wiring<br />
• <strong>System</strong> shall include:<br />
- Individual compressor inline intake filters<br />
- Discharge check valves of bronze construction<br />
- Safety relief valves<br />
- Intake and discharge flexible connectors<br />
- Isolation valves<br />
- <strong>Air</strong> cooled after coolers for each compressor<br />
- High discharge temperature sensor with numerical display and shut down<br />
- Pressure control transducer with automatic switch backup<br />
- Medical grade demand check valve for gauge, transducer and switches<br />
www.amico.com<br />
31 1
<strong>Air</strong> <strong>Compressor</strong><br />
Control Panel<br />
• UL listed control panel in a NEMA 12 enclosure with a<br />
5.7” Touch Screen Display<br />
• Only panel components that are commercially<br />
available and not of propriety design will be<br />
considered<br />
• Our compressors include the following accessories:<br />
- Temperature sensor at each discharge port of the<br />
compressor with numerical display<br />
- Externally operable circuit breaker with door<br />
interlock per compressor<br />
- Control circuit transformer with fused primary<br />
and secondary circuit breakers<br />
- WinCE 5.0 operating system<br />
- Illuminated H-O-A switch<br />
- Magnetic starter with three leg overload protection<br />
- Hour meter and motor running light<br />
• Alarm contacts should be provided for remote<br />
annunciation<br />
• The compressors will be v-belt driven Oil-Less Reciprocating<br />
compressors, air-cooled construction with absolutely no oil needed<br />
for operation (Available in single and two-stage)<br />
• Each compressor will be equipped with isolation valve, check valve,<br />
safety valve, electric motor, belts, belt guard, air cooled after cooler<br />
adjustable<br />
• 1800 R<br />
• Means of removal of the compressor for service or replacement<br />
without interruption to the system<br />
32 <strong>Amico</strong> Source Equipment<br />
<strong>Compressor</strong> Accessories<br />
• The system shall include:<br />
- Non-return valve on the outlet<br />
- Flexible inlet and outlet couplings<br />
- Pressure relief valve<br />
- Condensate separator and drains<br />
- Unloader valve<br />
• Audible and visual local alarms with dry contacts for<br />
the following:<br />
- Lag compressor in use<br />
- High dew point<br />
- High discharge air temperature<br />
- Main transformer failure<br />
- High carbon monoxide (CO) level<br />
- Motor overload<br />
• Provide manual reset for all alarms<br />
• All control and alarm functions shall remain<br />
energized while any pump in the system remain<br />
electrically on-line<br />
• Ethernet connectivity with embedded web-page for<br />
remote monitoring, password protected remote<br />
adjustment of all operating parameters<br />
• Lag compressor shall be able to start automatically if<br />
the lead compressor fails to operate for all alarm points<br />
2
Dryer/Filter/Regulator <strong>System</strong><br />
• An integral air treatment system with purge saving feature, NFPA 99<br />
after-�lters, pressure regulator valves, dew point monitor, CO monitor and<br />
system safety valves<br />
• The<br />
1: 2001 validated in accordance with the requirements of ISO 12500-1 and<br />
includes 3rd PARTY VALIDATION PERFORAMNCE<br />
1. Maximum remaining oil content 0.01 mg/m 3 at 70ºF (21ºC).<br />
2. Particulate removal to 0.01 micron.<br />
3. Dew point [-4ºF medical breathing air applications or -100ºF -<br />
laboratory applications].<br />
4. <strong>Air</strong> provided shall conform to ISO 8573.1 Standard Class 1.3.1 –<br />
medical breathing air [1.1.1 – laboratory applications].<br />
• Completely pre-piped and prewired to single-point service connections<br />
• There shall be two identical banks of air treatment equipment, piped in<br />
replacement, maintenance and repair work while still treating medical<br />
compressed air through the other set<br />
• Each bank consists of three stages:<br />
Stage 1: Prim<br />
Stage 2: Desiccant heatless<br />
air dryer, equipped with purge<br />
control capable of attaining<br />
pressure dew point of -40ºF<br />
The dry compressed air is<br />
discharged from the “online”<br />
tower into the 3rd stage<br />
Stage 3: P ciency<br />
along with downstream<br />
pressure regulators that will<br />
maintain constant discharge<br />
adjustable)<br />
<strong>Air</strong><br />
Receiver<br />
• Receiver shall be rated for full compressor<br />
service and shall be equipped with<br />
a liquid level indicator, electronic timed<br />
automatic drain, manual drain, and a<br />
safety relief valve<br />
• <strong>Air</strong> receiver should be rated for a<br />
minimum of 200 psig design pressure<br />
• The inside of the receiver consists of a<br />
two-part epoxy coating providing<br />
rust protection equal or better than that<br />
achieved by galvanizing<br />
• Three-valve by pass for service or<br />
replacement without interruption to the<br />
system<br />
<strong>Amico</strong> Source | 85 Fulton Way, Richmond Hill, ON, L4B 2N4, Canada Toll Free Tel: 1.877.462.6426 | Tel: 905.764.0800 | Fax: 905.764.0862<br />
www.amico.com<br />
www.amico.com<br />
33 3
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www.amico.com
www.amico.com<br />
<strong>Amico</strong> Source Equipment | www.amico.com<br />
85 Fulton Way, Richmond Hill<br />
Ontario, L4B 2N4, Canada<br />
Toll Free Tel: 1.877.462.6426<br />
Tel: 905.764.0800<br />
Fax: 905.764.0862<br />
Email: info@amico.com<br />
SE - AIR - DG NOV 2011