MCAC-ATSM-201704 Aqua Tempo Super II Series DC Inverter Air-cooled chiller unit (50Hz)
30
14. Trouble Shooting
14.1 Failure &protection codes
No Error code Content
1
1E0
EEPROM error of main control board
2E0 EEPROM error of inverter module A
3E0 EEPROM error of inverter module B
2 E1 Power phase sequence error
3 E2 Communication error between main control board and wired controller
4 E3 Total water outlet temperature sensor(Tw) error(master only)
5 E4 Outlet water temperature sensor (Two)error
6 E5 Condenser tube temperature sensor (T3)error
7 E7 Outdoor ambient temperature sensor (T4)error
8 E9
Water flow detection error(protection occurs for 3 times in 60 minutes and the failure can be recovered
by power disconnection only)
9
1Eb Evaporator anti-freezing temperature sensor (Taf1)error
1Eb Evaporator anti-freezing temperature sensor (Taf2)error
10 EC Wired controller detected that the units on-line reduction
11
1Ed Compressor discharge temperature sensor(Tp1) error
2Ed Compressor discharge temperature sensor r(Tp2) error
12 EF Inlet water temperature sensor(Twi) error
13 EH System self- check error alarm
14 EP Compressor discharge temperature sensor error alarm
15 EU Total cooling outlet temperature sensor(Tz/7) error
16 P0
High pressure(>4.4Mpa) or compressor discharge temperature(>110˚C) protection(protection occurs
for 5 times in 120 minutes and the failure can be recovered by power disconnection only)
17 P1
Low pressure(<0.14 Mpa) protection(protection occurs for 5 times in 120 minutes and the failure can
be recovered by power disconnection only)
18 P4
System A Current（≥25A） protection(protection occurs for 5 times in 120 minutes and the failure can
be recovered by power disconnection only)
19 P5
System B Current （≥25A）protection (protection occurs for 5 times in 120 minutes and the failure can
be recovered by power disconnection only)
20
1P6 System A inverter module protection
2P6 System A inverter module protection
21 P7 Condenser tube(T3>65˚C) and Total cooling outlet(Tz/7 >62˚C) high temperature protection
22 P9
Protection of outlet and inlet water temperature(≥12˚C) difference protection (protection occurs for 3
times in 60 minutes and the failure can be recovered by power disconnection only)
23 PA Inlet water high temperature in cooling mode
24 Pb
System anti-freezing protection（≤4˚C in normal water outlet mode and ≤0˚C in low water outlet
mode）
25 PC Evaporator pressure low in cooling mode
26 PE
Low-temperature≤3˚C in normal water outlet mode and ≤0˚C in low water outlet mode) protection of
evaporator (manual recovery)
27 PH Ambient temperature(T4)high temperature protection in heating mode
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