Calorex Pro-Pac PPT45EHC - Heat Pump Malfunction Guide

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 wi any internal control settings as ese
have been factory calibrated and sealed.
Only a competent electrician should attempt to rectify electrical supply
problems.
The refrigeration circuit can only be worked on by an auorised/
competent technician in accordance wi EU 517/2014.
If in doubt or if advice required, contact e Danerm Group UK
Service Department. Telephone (01621) 856611 (option 4).
USER CHECK LIST 30/45/70BHC
LAMP ACTION MODE
UNIT DOES NOT OPERATE HEAT COOL
ALL LAMPS OFF Check mains supply - external fuses - isolator etc check internal
control M.C.B
P P
MAINS RED ON Check ermostat set point.
‘Standby’ switch is set to run (1)
P P
TEMP O.K GREEN OFF
P P
WATER FLOW OK GREEN ON
P P
OTHER LAMPS OFF
P P
MAINS RED ON Check air flow is not restricted
P P
FAULT AMBER ON Check fan and compressor M.C.Bs and if fitted so start reset
button. Check interlock if fitted.
P P
WATER FLOW OK GREEN ON
OTHER LAMPS OFF Check HP and LP cutout switches and reset (red buttons below
console ermostat) Check compressor MCBs
P P
FAN ON COMPRESSOR OFF
MAINS RED ON
CHILL RED
OFF
CHILL LIMIT AMBER ON Check ermostat set point not set too low.
P
WATER FLOW OK GREEN ON Check at 12 hours elapsed since power up.
OTHER LAMPS OFF
MAINS RED
ON
HEAT RED
ON Unit on defrost (normal) - check air flow not restricted.
P
CHILL RED ON
P
DEFROST WHITE ON Ensure temperature is above 9ºC for standard model.
P P
WATER FLOW OK GREEN ON
OTHER LAMPS OFF
UNIT OPERATES INTERMITTENTLY
MAINS RED
ON Check water flow is not restricted
P P
HEAT RED ON/
OFF
and at electrical supply is adequate
P P
CHILL RED ON/
OFF
P P
FAULT AMBER ON/
OFF
WATER FLOW OK GREEN ON/
OFF
Check water flow is adequate
P P
MAINS RED ON
FAULT AMBER
ON Check water flow not restricted
P P
WATER FLOW OK GREEN OFF Check water flow is adequate
P P
OTHER LAMPS OFF
HEAT PUMP MALFUNCTION
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SD566250 ISSUE 35