ClimateMaster TCH072 - Functional Troubleshooting - I-P Units

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Compact Belt Drive (TCH/V) Series
Rev.: July 25, 2017
78
ClimateMaster Water-Source Heat Pumps
Functional Troubleshooting - I-P Units
Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis using P/T
ports to determine water fl ow and temperature difference. If water-side analysis shows poor performance,
refrigerant troubleshooting may be required. Connect refrigerant gauges as a last resort.
Refrigerant Circuit Diagram
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Model #:
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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
10
11
Source Water Out Pres
9a
Press Drop
9b Flow Rate
Return Air Temp
Supply Air Temp
Heat of Extraction (Absorption) or Heat of Rejection:
HE or HR =
Flow Rate x Temp. Diff x Fluid Factor
setoNnoitpircseD
Temp Diff. =
Heating Cooling
Water-to-Air Units
COMPRESSOR
DISCHARGE
SUCTION
EXPANSION
VALVE
FILTER
DRIER
REVERSING
VALVE
HEATING POSITION COOLING POSITION
1
COAX
5
10
11
9
7
8
6
4
3
2
LT2:
HEATING
LIQUID
LINE
5
LT1:
COOLING
LIQUID
LINE
CONDENSER (COOLING)
EVAPORATOR (HEATING)
REFRIG FLOW - HEATING REFRIG FLOW - COOLING
REFRIGERANT: HFC-410A
OPERATING MODE: HEATING COOLING
Fluid Factor: (for Btuh)
500 (Water); 485 (Antifreeze)
Source
Fluid Factor: (for kW)
4.18 (Water); 4.05 (Antifreeze)
AIR
COIL
Superheat = Suction temperature - suction saturation temp. = _________________ (deg F)
Subcooling = Discharge saturation temp. - liquid line temp. = _________________ (deg F)
CONDENSER (HEATING)
EVAPORATOR (COOLING)