Multistack - Trane
Multistack - Trane
Multistack - Trane
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Scott DeGier<br />
Northeast Regional Sales Manager<br />
MULTISTACK<br />
HEADQUARTERS<br />
SPARTA, WISCONSIN<br />
5/16/2012<br />
1
AHRI CERTIFICATION<br />
Air-Conditioning, Heating, and Refrigeration Institute<br />
<strong>Multistack</strong> is AHRI Certified and continues to certify<br />
products as they are developed<br />
AHRI Certification provides real performance data<br />
<strong>Multistack</strong> has AHRI approved and certified test stands<br />
in-house<br />
� Installation Cost Savings on<br />
Difficult Jobs<br />
� Anywhere You Need<br />
Redundancy<br />
� Future Capacity Add-on<br />
� Sound Sensitive<br />
5/16/2012<br />
2
•Dual Tandem Scroll Modules— 105-,<br />
135-, 149-, and 165-tons. Combined to<br />
form up to 1200 tons.<br />
•Two Refrigerant Circuits per module<br />
•Heat Pumps<br />
•Dedicated Heat Recovery Chillers—<br />
DHRC<br />
•Virtual Moveable End Cap--VME<br />
•Packaged Scroll Modules—10-, 15-, 20-, 30, 50-,<br />
70- and 85-ton modules. Combine up to 14<br />
modules for 800-tons<br />
•Dual Tandem Scroll Modules— 105-, 135-,149-,<br />
and 165- tons. Combined to form up to 1200<br />
tons.<br />
•Water Cooled Condensing units—connect to a<br />
field supplied evaporator<br />
•MagLev Centrifugal Modules—80-ton modules<br />
with Turbocor compressors<br />
•Heat Pumps<br />
•Dedicated Heat Recovery Chillers—DHRC<br />
•Virtual Moveable End Cap--VME<br />
5/16/2012<br />
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• 90, 125 and 145 ton<br />
134A Modules<br />
• Modulating Slide Valve<br />
• Precise leaving temp<br />
control<br />
• Configurable up to 1200<br />
Tons<br />
• Modular Advantages:<br />
• Ease of install—Fits<br />
through conventional 36”<br />
door<br />
• Micro-charge, ASHRAE 15<br />
compliance<br />
• Unsurpassed Redundancy<br />
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4
•Manual Valve to Supply/Return Heat Ex<br />
•Variable Flow Actuators Optional<br />
5/16/2012<br />
5
•10, 15, 20, 30 & 60 Ton<br />
Modules<br />
•Chillers 10 to 600-Tons<br />
•Tandem Scroll<br />
Compressors<br />
•410A Scrolls<br />
•Free Cooling Optional<br />
•Packaged Skids incl.<br />
Pumps, strainers, etc.<br />
5/16/2012<br />
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5/16/2012<br />
7
Built-in computer to constantly<br />
monitor operation and<br />
diagnostic systems<br />
Two stage impeller offers exceptional<br />
part load efficiency<br />
TURBO-COR<br />
The heart of a <strong>Multistack</strong><br />
MagLev Chiller is the<br />
Magnetic Levitation High<br />
Speed Compressor.<br />
Capable of spinning up to<br />
40,000 rpm, the<br />
<strong>Multistack</strong> control system<br />
allows the compressor to<br />
offer maximum efficiency<br />
at almost any level of<br />
building demand.<br />
Permanent magnet motor cuts size,<br />
weight and increases efficiency<br />
5/16/2012<br />
8
Magnetic<br />
Levitation<br />
MagLev by <strong>Multistack</strong><br />
•Magnetic bearings;<br />
no oil<br />
•IPLV .435 kW/ton<br />
•Quieter than<br />
background noise<br />
•2A peak current<br />
inrush<br />
•R-134A refrigerant<br />
Flooded Chillers<br />
•MagLev Centrifugal<br />
Flooded Chillers—<br />
Available 60-1200 tons<br />
•Long and short shell<br />
configurations<br />
•Minimal maintenance<br />
from oil-free design<br />
•FlexSys Controller<br />
5/16/2012<br />
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ASP Flooded MagLev<br />
• 75 & 100 Ton<br />
• Single MagLev<br />
Compressor<br />
• Built-in Variable Speed<br />
Drive<br />
• ECM Fans<br />
• Flexsys Lite Controls<br />
• R-134a Refrigerant<br />
• Full Load kW/ton < 1.0<br />
• IPLV < .7 kW/ton<br />
ASP Flooded MagLev,<br />
cont…<br />
5/16/2012<br />
10
ASP Flooded MagLev,<br />
cont…<br />
5/16/2012<br />
11
� Mechanical portion of the<br />
equipment is worn out –<br />
Refrigerant issues –<br />
Reliability concerns…<br />
Old, inefficient<br />
technology …. It’s a<br />
major capital expense:<br />
� Structural modifications,<br />
expensive rigging, major<br />
piping and electrical<br />
modifications, permits,<br />
power upgrades etc. etc.<br />
etc.<br />
� But …. If the shells are<br />
good<br />
� Propose a Chiller<br />
Upgrade Conversion !<br />
5/16/2012<br />
12
Using the Heat<br />
You Already<br />
Own<br />
5/16/2012<br />
13
What’s Wrong With<br />
This Picture?<br />
Heat Disposal System<br />
Heat Generation System<br />
5/16/2012<br />
14
1974…<br />
-Difficult to<br />
Balance<br />
-Limited Heat<br />
Value<br />
-Complicated<br />
Controls<br />
2001<br />
Dedicated System Optimized<br />
to Produce Heat<br />
– Higher<br />
Temperature<br />
– Simple Controls<br />
– Easily Balanced<br />
– Simple to Retrofit<br />
5/16/2012<br />
15
Where to Apply<br />
•VAV Reheat<br />
•Domestic Hot Water<br />
•Low Temperature Heating<br />
$1.16/Therm<br />
6.6 Kg CO2 per<br />
Therm<br />
45F<br />
140F<br />
55F<br />
$0.75/Therm<br />
1.6 Kg CO2 per<br />
Therm<br />
120F<br />
Cooling<br />
Load<br />
Heating<br />
Load<br />
5/16/2012<br />
16
Scenario 1<br />
Chiller Cooling = 0.6 kw/Ton @ $0.11/kwh<br />
= $0.55/100 MBTU<br />
Boiler Heating = $1.10 THERM Natural Gas @ 95% Efficiency<br />
= $1.45/125 MBTU<br />
Total = $2.00<br />
Scenario 2<br />
Economizer Cooling = 100 MBTU Free Cooling (Outside<br />
Air)<br />
Boiler Heating = $1.10 THERM Natural Gas @ 95%<br />
Efficiency<br />
= $1.45/125 MBTU<br />
Total = $1.45<br />
5/16/2012<br />
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Scenario 3<br />
HR Chiller Cooling = @ 1.12 kw/Ton @ 0.11/kwh<br />
= $1.03/100 MBTU<br />
HR Chiller Heating = 125 MBTU Free Heat<br />
Total = $1.03<br />
Totals<br />
Scenario 1 = $2.00<br />
Scenario 2 = $1.45<br />
Scenario 3 = $1.03<br />
10T DHRC @ <strong>Multistack</strong> Headquarters<br />
� 1,300 EFLH Summer<br />
� 2,000 EFLH Winter<br />
$5,430Annual Savings<br />
Emissions Reduction of 22 Metric Tons of CO2/Year<br />
5/16/2012<br />
18
MCCSC HVAC RETROFIT COMPARISON<br />
SCHOOL YEAR ELECTRIC GAS<br />
1Jan-31Dec kWhr COST Therms COST Cost/Therm<br />
TRI-NORTH Year 1 971,700 $ 53,436.00 81,110 $ 43,885.00 $ 0.54<br />
100 ton Year 2 1,123,200 $ 62,100.00 67,870 $ 50,421.00 $ 0.74<br />
DHRC AVG. 1,047,450 $ 57,768.00 74,490 $ 47,153.00 $ 0.64<br />
Year 3 1,024,800 $ 58,534.00 47,040 $ 38,130.00 $ 0.81<br />
Year 4 1,071,300 $ 65,917.00 26,360 $ 28,766.00 $ 1.09<br />
AVG. 1,048,050 $ 62,225.50 36,700 $ 33,448.00 $ 0.95<br />
Heat recovery system start ups were during summer Year 3<br />
Electric rates were level, while gas rates increased by approx. 30%.<br />
AHU<br />
(In Economizer Mode)<br />
C<br />
C<br />
H<br />
C<br />
64.6% reduction in consumption in<br />
Year 4 versus Average of Years 1&2<br />
$54,510 Gas Savings and 241 Metric<br />
Tons Reduction of CO 2<br />
55F<br />
Indirect<br />
Fired<br />
Mixed Air<br />
Return<br />
Air<br />
$1.16/Therm<br />
6.6 Kg CO2 per Therm<br />
MUAHU<br />
Outside Air<br />
Outside Air<br />
5/16/2012<br />
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55F<br />
C<br />
C<br />
H<br />
C<br />
80F<br />
DHRC<br />
� Heat pump w/<br />
reversing valves<br />
� Heating and<br />
cooling capacity<br />
moves with<br />
“endcap”<br />
� Simultaneous<br />
Load Matching<br />
on Single Source<br />
Loop<br />
� Modulating<br />
condenser valve<br />
(cooling mode)<br />
AHU<br />
$0.82/Therm<br />
4.4 Kg CO2 per Therm<br />
MUAHU<br />
Mixed Air<br />
Return<br />
Air<br />
Outside Air<br />
Outside Air<br />
5/16/2012<br />
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GEOTHERMAL HEAT PUMP WITH VME TECHNOLOGY<br />
5/16/2012<br />
21
� Reversing Valve Free Design<br />
� Improves Reliability<br />
� Improves Efficiency<br />
<strong>Multistack</strong> VME II<br />
� Provides Simultaneous Heating and Cooling Without The Need To<br />
Use The Geothermal Water As an Energy Transfer Buffer<br />
� Achieves an Efficiency Gain Of 40% For Simultaneous Loads<br />
� Achieves an 5-9% Efficiency Gain For Normal Loads<br />
� Typically Allows A Module Per Machine To Be Eliminated vs. VME I Which<br />
Reduces Footprint & Electrical Load<br />
� Offers Compressor Run Time Equalization<br />
� Offers Pump Energy Savings<br />
70 F<br />
44 F<br />
89 F<br />
Condensing<br />
Geother<br />
mal<br />
Cooling<br />
Load<br />
39 F<br />
Suction<br />
84 F<br />
57 F<br />
70 F Geothermal<br />
Water<br />
Simultaneous<br />
Heating & Cooling<br />
Compressor Lift =<br />
122 F<br />
70 F<br />
120 F<br />
53 F<br />
Suction<br />
Geother<br />
mal<br />
Heating<br />
Load<br />
125 F<br />
Condensing<br />
58 F<br />
105<br />
F<br />
5/16/2012<br />
22
90 F<br />
44 F<br />
48 F<br />
44 F<br />
108 F<br />
Condensing<br />
Geother<br />
mal<br />
Cooling<br />
Load<br />
39 F<br />
Suction<br />
74 F<br />
Condensing<br />
Geother<br />
mal<br />
Cooling<br />
Load<br />
39 F<br />
Suction<br />
103 F<br />
57 F<br />
68 F<br />
57 F<br />
90 F Geothermal<br />
Water<br />
Simultaneous<br />
Heating & Cooling<br />
Compressor Lift =<br />
129 F<br />
48 F Geothermal<br />
Water<br />
Simultaneous<br />
Heating & Cooling<br />
Compressor Lift =<br />
125 F<br />
90 F<br />
120 F<br />
48 F<br />
120 F<br />
65 F<br />
Suction<br />
Geother<br />
mal<br />
Heating<br />
Load<br />
125 F<br />
Condensing<br />
35 F<br />
Suction<br />
Geother<br />
mal<br />
Heating<br />
Load<br />
125 F<br />
Condensing<br />
70 F<br />
105<br />
F<br />
40 F<br />
105<br />
F<br />
5/16/2012<br />
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57F<br />
120 F<br />
39 F<br />
Suction<br />
Cooling<br />
Load<br />
Heating<br />
Load<br />
44F<br />
125 F<br />
Condensing<br />
105 F<br />
Simultaneous<br />
Heating & Cooling<br />
Compressor Lift = 86 F<br />
VME II Simultaneous Load Performance Summary<br />
300 Ton Data Room Cooling Load & 4,736 MBH Simultaneous Heating Load (VME I)<br />
Geothermal<br />
Water Cooling Heating Cooling<br />
Heating Heating<br />
Temperature Efficiency Efficiency Capacity Cooling Power Capacity Power Total Power<br />
F kW/Ton MBH/kW Tons kW MBH kW<br />
90 0.8589 16.2465 300 257.67 4736 291.5 549.2<br />
70 0.6340 14.0818 300 190.2 4736 336.3 526.5<br />
48 0.5264 10.8519 300 157.92 4736 436.4 594.3<br />
300 Ton Data Room Cooling Load & 4,736 MBH Simultaneous Heating Load (VME II)<br />
Geothermal<br />
Water<br />
Temperature<br />
Combined<br />
DHRC<br />
Efficiency<br />
Cooling Total<br />
Capacity Power<br />
F kW/Ton Tons kW<br />
90 1.1107 300 333.21 39.3%<br />
70 1.1107 300 333.21 36.7%<br />
48 1.1107 300 333.21 43.9%<br />
Efficiency<br />
Improvement<br />
5/16/2012<br />
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3 Cooling<br />
0 Heating<br />
3 Source rejecting<br />
0 Simultaneous load<br />
3 Cooling<br />
1 Heating<br />
2 Source rejecting<br />
1 Simultaneous load<br />
5/16/2012<br />
25
2 Cooling<br />
3 Heating<br />
1 Source extracting<br />
2 Simultaneous load<br />
Scott DeGier<br />
sdegier@multistack.com<br />
(608) 366-2400<br />
5/16/2012<br />
26
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