Lennox eCO2Boost L, Installation Instructions Manual, Page: 19 / 24

eCO2Boost XS 3
19
Error Error type Alarm conditions CDU status
In case of master
controller
Recovery
Conditions
E23
Ambient air
temperature
sensor error
-30°C ≥ TAR ≥ 100°C
during 3 seconds
-30°C = 129,3k Ω
100°C=1,02k Ω
operate
EEV=(A10paramete)
pls Default
value=480
Alarm activation
CDU operate
Automatic
recovery if :
-30°C ≤ TAR ≤
100°C
E24
Discharge
temperature
sensor error
-15°C ≥ Td ≥ 200°C
during 3 seconds
-15°C =
162k
Ω
200°C=892 Ω
no operate
Alarm activation
CDU no operate
Automatic
recovery if :
-15°C ≤ Td ≤
200°C
E26
Heat exchanger
inlet temperature
sensor error
-30°C ≥ Ti ≥ 100°C
during 3 seconds
-30°C = k Ω
100°C= Ω
operate
Alarm activation
CDU operate
Automatic
recovery if :
-30°C ≤ Ti ≤
100°C
E27
Heat exchanger
outlet temperature
sensor error
-30°C ≥ TU ≥ 100°C
during 3 seconds
-30°C = k Ω
100°C= Ω
operate
Alarm activation
CDU operate
Automatic
recovery if :
-30°C ≤ TU ≤
100°C
E40
Communications
error with master
controler (if using
an external
communication
system)
No communication
during 10 minutes
operate with local
target value
Alarm activation
CDU operate
Automatic
recovery if :
communication
restart with
master
E42
Inverter
communications
error
No communication
during 30 seconds
no operate
Alarm activation
CDU no operate
Automatic
recovery if :
communication
restart
E50 EEV control error 1 Calculation error no operate
Alarm activation
CDU no operate
Automatic
recovery if :
calculation is OK
E51 EEV control error 2 Calculation error no operate
Alarm activation
CDU no operate
Automatic
recovery if :
calculation is OK
E70
Inverter control
error 1
Calculation error no operate
Alarm activation
CDU no operate
Automatic
recovery if :
calculation is OK
E71
Inverter control
error 2
Calculation error no operate
Alarm activation
CDU no operate
Automatic
recovery if :
calculation is OK
15. Code error list