Installation, Operation & Maintenance - HNW Series
HNW Troubleshooting Form
HNW Water-to-Water (Heating and Cooling)
Troubleshooting Form
Customer:
Loop Type:
Startup Date:
Model #:
Serial #:
Antifreeze Type & %:
Complaint:
Description
Heating
Cooling
Notes
Water Side Analysis
1 Source Water In Temp.
2 Source Water Out Temp.
H Temp. Diff . =
3 Source Water In Pressure
4 Source Water Out Pressure
4a Pressure Drop
4b GPM
Heat of Extraction (Absorption) or Heat of Rejection:
HE or HR (Btuh) =
Enter HE or HR:
Flow Rate (GPM) x
Temp. Diff (deg F) x
Fluid Factor
Refrigerant Analysis
5 Suction Temp.
6 Suction Pressure
6a Saturation Temp.
6b Superheat
7 Discharge Temp.
8 Discharge Pressure
8a Saturation Temp.
8b Subcooling
9 Liquid Line Temp
10 Load Water In Temp.
11 Load Water Out Temp.
H Temp. Diff . =
12 Load Water In Pressure
13 Load Water Out Pressure
13a Pressure Drop
13b GPM
Voltage
Compress Amps
COMPRESSOR
DISCHARGE
SUCTION
HWG*
EXPANSION
VALVE
FILTER
DRIER
5
COAX
4
2
3
1
8
7
6
9
LT2:
HEATING
LIQUID
LINE
CONDENSER (COOLING)
EVAPORATOR (HEATING)
* Turn off HWG before
troubleshooting.
Source
C
O
AX
13
11
12
10
CONDENSER (HTG)
EVAPORATOR (CLG)
Load
REFRIG FLOW - HEATING
REFRIG FLOW - COOLING
LT1:
COOLING
LIQUID
LINE
9
REVERSING
VALVE
HEATING POSITION
COOLING POSITION
REFRIGERANT: HFC-410A
Fluid Factor:
500 (Water); 485 (Antifreeze)
C Temp. Diff . =
C Temp. Diff . =
RP931
30
