Heat Pump Malfunction - Calorex Pro-Pac Series Owners & Installation Manual

HEAT PUMP MALFUNCTION

WARNING: Isolate machine electrically before entering machine
or removing panels.
The user check list should be carried out before initiating a service call.
Do not attempt to interfere with any internal control settings as these
have been factory calibrated and sealed.
LAMP
ALL LAMPS
MAINS RED
TEMP O.K GREEN
WATER FLOW OK GREEN
OTHER LAMPS
MAINS RED
FAULT AMBER
WATER FLOW OK GREEN
OTHER LAMPS
MAINS RED
CHILL RED
CHILL LIMIT AMBER
WATER FLOW OK GREEN
OTHER LAMPS
MAINS RED
HEAT RED
CHILL RED
DEFROST WHITE
WATER FLOW OK GREEN
OTHER LAMPS
MAINS RED
HEAT RED
CHILL RED
FAULT AMBER
WATER FLOW OK GREEN
MAINS RED
FAULT AMBER
WATER FLOW OK GREEN
OTHER LAMPS
SD566250 ISSUE 35
Only a competent electrician should attempt to rectify electrical supply
problems.
The refrigeration circuit can only be worked on by an authorised/
competent technician in accordance with EU 517/2014.
If in doubt or if advice required, contact the Dantherm Group UK
Service Department. Telephone (01621) 856611 (option 4).
USER CHECK LIST 30/45/70BHC
UNIT DOES NOT OPERATE
OFF Check mains supply - external fuses - isolator etc check internal
control M.C.B
ON Check thermostat set point.
'Standby' switch is set to run (1)
OFF
ON
OFF
ON Check air flow is not restricted
ON Check fan and compressor M.C.Bs and if fitted soft start reset
button. Check interlock if fitted.
ON
OFF Check HP and LP cutout switches and reset (red buttons below
console thermostat) Check compressor MCBs
FAN ON COMPRESSOR OFF
ON
OFF
ON Check thermostat set point not set too low.
ON Check that 12 hours elapsed since power up.
OFF
ON
ON Unit on defrost (normal) - check air flow not restricted.
ON
ON Ensure temperature is above 9ºC for standard model.
ON
OFF
UNIT OPERATES INTERMITTENTLY
ON Check water flow is not restricted
ON/ and that electrical supply is adequate
OFF
ON/
OFF
ON/
OFF
ON/ Check water flow is adequate
OFF
ON
ON Check water flow not restricted
OFF Check water flow is adequate
OFF
ACTION MODE
HEAT COOL
P P
P P
P P
P P
P P
P P
P P
P P
P
P
P
P P
P P
P P
P P
P P
P P
P P
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