Enter HE or HR:
Flow Rate (GPM) x Temp. Diff (deg F) x Fluid Factor
<--Water-to-Water units only
<--Water-to-Water units only
<--Water-to-Air units only
<--Water-to-Water units only
Temp Diff. =
Temp Diff. =
<--Water-to-Water units only
<--Water-to-Water units only
Temp Diff. =
HeatingDescription NotesCooling
COMPRESSOR
DISCHARGE
SUCTION
HWG**
AIR
COIL
EXPANSION
VALVE
FILTER
DRIER*
REVERSING
VALVE
HEA TING POSITION COOLING POSITION
1
COAX
COAX
5
1210
1311
14
15
9
7
8
6
4
3
2
LT2:
HEATING
LIQUID
LINE
5
LT1:
COOLING
LIQUID
LINE
CONDENSER ( HEA TING)
EV A PORA TOR ( CO OL ING)
CONDENSER (HTG)
EVAPORATOR (CLG)
CONDENSER (COOLING)
EVA PORATOR (HEATING)
WA TER- TO- A IR UNITS
WA TER-TO-WA TER 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:
500 (Water); 485 (Antifreeze)
Source
Load