Lennox CLIMATIC 40 User Manual page 27

ALARMS
ALARMS/WARNINGS CODES
DISP
DISP
DESCRIPTION
CL40/
DC40
DC41
Antifreeze alarm.
- ECOLEAN Outlet temperature < 3ºC. Reset MAN.
A
- AIRCOOLAIR circuit  indoor piping temperature <
2ºC. Reset AUTO.
A2
Antifreeze alarm, circuit 2. (Aircoolair only).
A2 Circuit 2 indoor piping temperature < 2ºC. Reset
AUTO.
Warning the high ambient temperature.
Ht ------
Ambient temperature > 40ºC.
Warning the low ambient temperature.
Lt ------
Disabled by default.
AHt ------ Not used.
HLt ------ Not used.
Warning the low power supply.
Power supply < 20.4V.
ELS ------
Warning the high power supply.
EHS ------ Power supply > 26.4V.
Not used.
Ed ------
Not used.
Ed2 ------
Not used.
SH ------
SH2 ------ Not used.
nO ------ Not used.
nO2 ------ Not used.
LO ------ Not used.
Not used.
LO2 ------
Not used.
HA ------
Not used.
HA2 ------
EP ------ Not used.
EP2 ------ Not used.
ES ------ Not used.
ES2 ------ Not used.
EU ------ Not used.
Not used.
EU3 ------
Eb ------ Not used.
Eb2 ------ Not used.
L ------ Not used.
Ed ------ Not used.
Ed2 ------ Not used.
PH ------ Not used.
PH2 ------ Not used.
SUL ------ Not used.
Alarm, faulty communication between DC40 and
tEr OcH
Climatic 40. (Aircoolair only).
Generic alarm.
AcH
Some active alarms on Climatic 40.
Ahu Not used.
DC40 internal probe alarm.
AtE
Faulty internal probe.
CEr DC40 setting error.
UEr DC40 hardware error.
EFFECT RE
-ECOLEAN
compressors
ECOLEAN: Reset and check:
stop.
- Check the water filter.
- Check water flow.
- AIRCOOLAIR MAN/
- Check that the water pump is connected to power supply of the unit.
Close freecooling AUTO
AIRCOOLAIR: Check:
air dumper and
- Indoor unit air filter.
stops circuit 
- Air damper correctly working.
compressors 
Close
freecooling air Check:
dumper and AUTO - Indoor unit air filter.
stops circuit  - Air damper correctly working.
compressors 2
Check ambient probe location; avoid places where the measurement of
AUTO
------
the ambient temperature by the internal sensor may be altered.
Call SAT.
------ ------
------ ------ Call SAT.
------ ------ Call SAT.
AUTO Check controller power supply = 24V (see electrical diagram).
------
Unit stops AUTO Check controller power supply = 24V (see electrical diagram).
Call SAT.
------ ------
Call SAT.
------ ------
Call SAT.
------ ------
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
Call SAT.
------ ------
Call SAT.
------ ------
Call SAT.
------ ------
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
Call SAT.
------ ------
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
- DC40 connections (see electrical diagrams).
Unit stops AUTO
Call SAT.
------ ------ Check Climatic 40 alarm code and act by consequence.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
------ ------ Call SAT.
26
ACTION