Specifications - Lord and Son Construction, Inc.

horizontal installations. The only air in the system shall be the permanent
sealed-in air cushion contained within the expansion tank.
2.8 AIR SEPARATOR TANKS
External air separation tank shall have an internal design constructed of
stainless steel and suitable for creating the required vortex and subsequent
air separation. Tank shall be steel, constructed for, and tested to
pressure-temperature rating of 125 psi at 150 degrees F. Tank shall have
tangential inlets and outlets connections, threaded for 2 inches and smaller
and flanged for sizes 2-1/2 inches and larger. Air released from a tank
shall be to the atmosphere . Tank shall be provided with a blow-down
connection.
Design to separate air from water and to direct released air to automatic
air vent. Unit shall be of one piece cast-iron construction with internal
baffles and two air chambers at top of unit; one air chamber shall have
outlet to expansion tank and other air chamber shall be provided with
automatic air release device. Tank shall be steel, constructed for, and
tested to a ANSI Class 125 pressure-temperature rating.
2.9 WATER TREATMENT SYSTEMS
When water treatment is specified, the use of chemical-treatment products
containing equivalent chromium (CPR) is prohibited.
2.9.1 Water Analysis
Conditions of make-up water to be supplied to the condenser and chilled
water systems were reported in accordance with ASTM D 596 and are as
follows:
Date of Sample
Temperature degrees F.
Silica (Sino 2)
pp (mg/1)
Insoluble
pp (mg/1)
Iron and Aluminum Oxides
pp (mg/1)
Calcium (Ca)
pp (mg/1)
Magnesium (Mg)
pp (mg/1)
Sodium and Potassium (Nan and AK)
pp (mg/1)
Carbonate (HO 3)
pp (mg/1)
Sulfate (SO 4)
pp (mg/1)
Chloride (JCL)
pp (mg/1)
Nitrate (NO 3)
pp (mg/1)
Turbidity
unit
pH
Residual Chlorine
pp (mg/1)
Total Alkalinity
PM (me/1)
Non-Carbonate Hardness
PM (me/1)
Total Hardness
PM (me/1)
Dissolved Solids
pp (mg/1)
Fluorine
pp (mg/1)
Conductivity
McMahon/cm
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