Maintenance And Upkeep; Failure Information And Code - EAS ELECTRIC ECH R32 Serie Manual De Instalación Y Usuario

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11 MAINTENANCE AND UPKEEP

11.1 Failure information and code

In case the unit runs under abnormal condition, failure protection code will display on both control panel and wired controller,
and the indicator on the wired controller will flash with 1Hz. The display codes are shown in the following table:
Table11-1 ECH030NHR and ECH060NHR
NO.
Code
Main control parameter memory EPROM failure
1
E0
Phase sequence failure of main control board check
2
E1
Communication failure between master and the HMI
3
E2
Communication failure between master and slave
Total water outlet temperature sensor failure (main unit valid)
4
E3
Unit water outlet temperature sensor failure
5
E4
1E5 condenser tube temperature sensor T3A failure
6
E5
2E5 condenser tube temperature sensor T3B failure
Ambient temperature sensor failure
8
E7
Power supply phase sequence protector output error
9
E8
Water flow detection failure
10
E9
1Eb-->Taf1 cooling evaporator low-temperature
12
Eb
antifreeze protection sensor failure
2Eb-->Taf2 cooling evaporator low-temperature
antifreeze protection sensor failure
Slave unit module reduction
13
EC
1Ed-->A system discharge temperature sensor failure
14
Ed
2Ed-->B system discharge temperature sensor failure
Unit water return temperature sensor failure
16
EF
System self-check failure alarm
17
EH
Discharge temperature sensor failure alarm
19
EP
Tz/7 Coil final outlet temperature sensor error
20
EU
System high-pressure protection or discharge
21
P0
temperature protection
System low pressure protection
22
P1
Tz/7 Coil final outlet temperature too high
23
P2
T4 ambient temperature too high in cooling mode
24
P3
System A current protection
25
P4
System B current protection
26
P5
Inverter module failure
27
P6
28
P7
High temperature protection of system condenser
30
P9
Water inlet and outlet temperature difference protection
Antifreeze protection in winter
32
Pb
Evaporator pressure too low in cooling
33
PC
35
PE
Cooling evaporator low temperature antifreeze protection
T4 ambient temperature too high in heatling mode
37
PH
Content
30
Note
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure rcovery
Recovered upon failure recovery
If there is a failure recovery,the
number of previous protections
will be cleared
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Recovered upon error recovery
Recovered upon error recovery
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Recovered upon error recovery
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
V.1

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