Refrigeration troubleshooting form – Comfort-Aire HWW120 User Manual
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Complaint:
Voltage
Compressor Amps
1
Suction Temp
2
Suction Press
2a
Saturation Temp
2b
Superheat
3
Discharge Temp
4
Discharge Press
4a
Saturation Temp
4b
Subcooling
5
Liquid Line Temp
6 Source Water In Tmp
7 Source Water Out Tmp
8 Source Water In Pres
9 Source Water Out Pres
9a
Press Drop
9b
Flow Rate GPM [l/s]
10 Load Water In Temp
11 Load Water Out Temp
12 Load Water In Pres
13 Load Water Out Pres
13a
Press Drop
13b
Flow Rate GPM [l/s]
Heat of Extraction (Absorption) or Heat of Rejection:
HE or HR =
Flow Rate x
Temp. Diff x
Fluid Factor
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<--Water-to-Water units only
<--Water-to-Water units only
<--Water-to-Water units only
<--Water-to-Water units only
Temp Diff. =
<--Water-to-Water units only
Temp Diff. =
Heating
Cooling
Refrigeration Troubleshooting Form
Water-to-Water Units
COMPRESSOR
DISCHARGE
SUCTION
HWG**
EXPANSION
VALVE
FILTER
DRIER*
REVERSING
VALVE
HEATING POSITION
COOLING POSITION
1
COAX
C
O
AX
5
12
10
13
11
9
7
8
6
4
3
2
FP2:
HEATING
LIQUID
LINE
5
FP1:
COOLING
LIQUID
LINE
CONDENSER (HTG)
EVAPORATOR (CLG)
CONDENSER (COOLING)
EVAPORATOR (HEATING)
WATER-TO-WATER UNITS
*Filter drier not used
for some R-22 units.
**Turn off HWG before
troubleshooting.
REFRIG FLOW - HEATING
REFRIG FLOW - COOLING
REFRIGERANT: R-22 R-410A R-407C
OPERATING MODE: HEATING COOLING
Fluid Factor: (for Btuh)
500 (Water); 485 (Antifreeze)
Source
Load
Fluid Factor: (for kW)
4.18 (Water); 4.05 (Antifreeze)
Refrigeration Troubleshooting Form
Heat Controller, Inc.
WATER-TO-WATER (HWW) SERIES
Installation & Operation