10
630460050SER
TEMPERATURE / PRESSURE CHARTS *
CMP600–30
±
10 lb.
Discharge Pressure
Refrigerant
Type R404A
Water Temperature
Air Temp.
40
65
90
50
174
177
180
60
202
205
208
70
230
233
236
80
265
269
272
90
300
304
307
100
328
334
340
NOTE: The thermostatic expansion valve is non–adjustable on all models
CONDENSER MODULATING VALVE
(Water Cooled Only)
The reason for using a water modulating valve is to supply the correct amount of water to the condenser to
maintain the proper operating pressure in the refrigeration system high side. The flow of water through the valve
is increased as the high side pressure rises and decreases as high side pressure lowers.
FIGURE 4. ADJUSTMENT SCREW
To calibrate the amount of water flow with the refrigeration system high side pressure, turn adjustment screw
located on end of valve opposite of bellows See Figure 4. Turn screw counterclockwise to raise opening point.
Opening point of valve should be set to maintain proper operating pressure in refrigeration system high side.
Refer to Pressure Chart on Page 10. Closing point of valve should be set low enough to close valve during
compressor stand by periods.
NOTE:
Cold water will absorb more heat faster than warm water. The water flow will therefore
automatically increase as inlet temperature increases.
