Lennox CLIMATIC 200 User Manual

18
ALARM CODES
E23
E24
E40
E41
E45
E46
E27
E31
E32
E33
E42
Compressor 1 circuit 2 thermal protection alarm:
- Compressor thermal protection open.
- Faulty power supply.
Fan thermal protection alarm.
Refrigerant piping temperature probe alarm (St6)
circuit 2.
It may indicate:
- Refrigerant piping temperature probe open or
without connecting.
Compressor 4 thermal protection alarm.
- Compressor thermal protection open.
- Faulty power supply.
Inlet water temperature probe alarm (St1).
It may indicate:
- Inlet water temperature probe open or without
connecting.
Water flow switch alarm.
It indicates low water flow in the unit.
St4 probe error.
Alarm of configuration error.
High inlet water temperature. It indicates:
Inlet water temperature probe detects
temperatures higher than 90ºC during more than
one minute.
REDESCRIPTION EFFECT ACTIONVIS.
MAN
Compressor 1
circuit 2
stops
Check:
 Check refrigerant charge.
 Check the refrigerant circuit is not blocked.

Check connections and protections.
 Check power supply.
Reset and check:
- Fan
- Check connections and protections.
MAN
Circuit 2 fan
and circuit 2
compressors
stop
AUTO
Unit
stops
 Connection of refrigerant piping temperature/
pression probe (
St6) (see electrical diagram),
check continuity and change the faulty
component.
AUTO
Circuit 2
compressors
stop
High pressure / high temperature alarm.
It is activated when refrigerant piping
temperature/ pression probe (St6) detects a
temperature higher than 70ºC/45bar and the
high pressure switch has not been activated.
Check:
 Working of high pressure switch
.
 Coil is clean and not blocked.
 Water flow on the heating cycle.
 Check fan protection.
 Condenser air temperature is very high.
 Check refrigerant charge.
AUTO
 Check low pressure switch working.
 Coil is clean and not blocked.
 Check water flow on the cooling cycle.
 Check fan protection.
 Evaporation air temperature is very low.
 Check refrigerant charge.
Low pressure / low temperature alarm.
It is activated when refrigerant piping
temperature/ pression probe (St6) detects a
temperature lower than -30ºC/2bar and the low
pressure switch has not been activated.
Circuit 2
compressors
stop
Compressor 2
circuit 2
stops
MAN
AUTO
Check connection of inlet water temperature
probe (
St1) (see electrical diagram), check
continuity and change the faulty component.
Unit
stops
AUTO
 Check water circuit is not blocked.
 Check water filter.
 Check water pump operation.
Unit
stops
(*)
AUTO
Check the St4 probe connection or cancel
Dynamic set point if the unit does not incorporate
St4 probe.
Unit
stops
AUTO It may indicate that the terminal is broken.
Unit
stops
AUTO
Check connection of inlet water temperature
probe (
St1) (see electrical diagram), check the
continuity and change the faulty component
Unit
stops
 Check refrigerant charge.
 Check the refrigerant circuit is not
blocked.

Check connections and protections.
 Check power supply.
(*) Unit stops except water pump.

Lennox CLIMATIC 200 Specifications

General

Brand	Lennox
Model	CLIMATIC 200
Category	Network Router
Language	English