• SEVEN STANDARD MODELS ARE AVAILABLE RANGING IN CAPACITY FROM 1 TO 5 TONS.
• STANDARD MODELS ARE COAXIAL TUBE-IN-TUBE DESIGN WITH A CONVOLUTED INNER TUBE OF COPPER AND AN OUTER TUBE (SHELL) OF STEEL OR COPPER.
• WORKING PRESSURES: 400 PSIG WATER-SIDE, 620 PSIG REFRIGERANT-SIDE.
• U.L. AND C.S.A. APPROVED
  

CHAX = COPPER INNER TUBE, STEEL OUTER SHELL

CHBX= COPPER INNER TUBE, COPPER OUTER SHELL

R-22 system cooling capacity corresponding to evaporator heat absorbtion at 54º F entering water temperature, 44º F leaving water temperature, water flow rate of 2.4 gpm/ton, 7º F superheat, and 100º F refrigerant liquid entering expansion valve.

1. Determine the operating conditions:

Enter Water Temperature (EWT):_____ºF

Leaving Water Temperature (LWT):_____ºF

Saturated Suction Temperature (SST):_____ºF

Water Flow Rate (GPM):______ gal/min OR Chiller Capacity (CAP):_____MBTU/hr (MBTU/hr=BTUx1000)

2. Calculate the Approach and Range:

APPROACH = [LWT - SST] =_____-_____=_____ºF

RANGE = [EWT - LWT] =_____-_____=_____ºF

3. Calculate the Chiller Capacity or Water Flow Rate, whichever was not given in Step 1:

CAP = [GPM X Range] ÷ 2 =_____x_____÷2=_____MBTU/hr

GPM = [2 x CAP] ÷ Range = 2x_____÷_____=_____gal/min.

4. Select the appropriate Packless Chiller Model:

Pick the chart below that most closely matches the Range calculated in Step 2, then select the column in that chart that matches the Approach calculated in Step 2. Look down the selected column and find a value equal to (or greater than) the Capacity (CAP) from Step 1 or Step 3 and select the corresponding Packless Chiller Coil Model.

CHAX-________-______

5. For non-standard applications, materials and configurations, please consult factory.

*Capacity data is applicable to parallel or counterflow water and refrigerant flows under the following conditions: (a) 70ºF maximum entering temperature, (b) 39ºF minimum leaving water temperature, and (c) 32ºF minimum saturated suction temperature.

Packless Chiller Coils are approved by Underwriter's Laboratories, Inc. (U.L.) and the Canadian Standards Association (C.S.A.) for use with the following refrigerants:

R12, R22, R23, R125, R134A, R401A, R401B, R402A, R402B, R404A, R407A, R407B, R407C, R408A, R409A, R410A, R410B, R412A, R502, R507, R508, R509

PERFORMANCE

WATER-SIDE PRESSURE DROP DATA (PSI)

GPM=Water Flow Rate PSI=Water-side Pressure Drop

All dimensions are in inches

Due to a continuous program of product improvement, specifications and dimensions are subject to change without notice.