Flooded System Charging; Constant Speed Compressor - Data Aire gForce Ultra Installation, Operation And Maintenance Manual

When charging is complete, close the valve on the refrigerant manifold set and close the service
valve on the refrigerant tank. Then go back into menu "H. Calibrate Sensors" and set either the
"Return Air Temp Sensor" or "Discharge Air Temp Sensor" menu offset values back to 0. If a cali-
bration offset value has been determined in the field that is different from 0 bring the offset num-
ber back to this value.

5.5 Flooded System Charging

WARNING:
ing the variable speed compressor in a dual circuit system.
Flooded systems are supplied with optional liquid receiver and head pressure control valve. When
the ambient temperature falls during cold weather, the head pressure control valve will regulate the
flow of refrigerant to ensure minimum receiver pressure. The condenser is partially flooded with liquid
refrigerant in cold weather. In warm weather the extra refrigerant is stored in the receiver. Therefore,
flooded systems require more refrigerant than fan speed control systems.

5.5.1 Constant Speed Compressor

See the tables for the appropriate charging
1.
After the system has been properly evacuated. Calculate the proper charge by following
the steps of the tables below.
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
The constant speed compressor must be charged before charg-
37
43
49
55
61
67
74
80
86
92
98
104
110
117
123
129
135
141
147
153
38
18
21
25
28
31
34
37
40
43
46
49
52
55
58
61
64
67
71
74
77