Refrigerant circuit diagrams, Date – Comfort-Aire HBH Series 1/2 to 5 Ton User Manual
Page 42
IOM Instructions
HBH/V COMPACT
Heat Controller, Inc.
Functional Troubleshooting - I.P. Units
Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis
using P/T ports to determine water flow and temperature difference. If water-side analysis shows
poor performance, refrigerant troubleshooting may be required. Connect refrigerant gauges as a
last resort.
Packaged Unit Refrigeration Schematic
Rev. 12/08
Customer: _____________________________________ Antifreeze: ________________________
Model#: ________________________ Serial#: ________________ Loop type: _______________
Complaint: ________________________________________________________________________
COAX
COMPRESSOR
DISCHARGE
SUCTION
HWG
COOLING CYCLE ANALYSIS -
COAX
COMPRESSOR
DISCHARGE
SUCTION
HWG
HEATING CYCLE ANALYSIS -
PSI
SAT
PSI
SAT
°
F
°
F
AIR
COIL
°
F
°
F
FP2: HEATING
LIQUID LINE
°
F
EXPANSION
VALVE
AIR
COIL
°
F
°
F
PSI
SAT
PSI
SAT
°
F
°
F
°
F
°
F
WATER IN
WATER OUT
PSI
PSI
°
F
°
F
WATER IN
WATER OUT
PSI
PSI
Look up pressure drop in
I.O.M. or spec. catalog to
determine flow rate.
Look up pressure drop in
I.O.M. or spec. catalog to
determine flow rate.
†
Use 500 for water, 485 for antifreeze.
FILTER
DRIER*
FLASH
GAS LINE
°
F
FP1
SENSOR
°
F
EXPANSION
VALVE
FILTER
DRIER*
FP2: FLASH
GAS LINE
°
F
OTHER SIDE
OF FILTR DR
°
F
FP1: CLG
LIQ LINE
°
F
Refrigerant Type:
R410A
Heat of Extraction (Absorption) or Heat of Rejection =
________
flow rate (
diff. (
factor = _____________
(Btu/hr)
Superheat
Subcooling
Suction temperature - suction saturation temp.
Discharge saturation temp. - liquid line temp.
=
=
=
=
(deg F)
(deg F)
gpm) x ________ temp.
deg. F) x ________ fluid
†
Date: ________________________
Voltage: ________
Comp Amps: _______
Total Amps: ________
Location: ________________________
Model Number: ________________________
Serial Number: ________________________
Refrigerant Circuit Diagrams