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Troubleshooting
Service manual
18
250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05
COOL
Cool
HEAT
Heat
3
Set the emergency DIP switch DS1‑2 on the outdoor unit PCB to the desired
forced operating mode (Cooling or Heating).
4
Turn ON the power using the respective circuit breaker.
5
Turn ON the unit.
Result:
The system starts operating in emergency operation.
Active components
Component
Forced cooling
Forced heating
Forced defrost
Compressor
ON
ON
ON
4‑way valve
OFF
ON
OFF
Outdoor unit fan
Steady‑state
control
Steady‑state
control
OFF
Indoor unit fan
Steady‑state
control
Steady‑state
control
OFF
Drain pump
ON
ON
ON
Additional info
▪
The unit will NOT regulate the temperature during emergency operation.
▪
During emergency operation, do NOT attempt to operate the system using the
remote controller. The remote controller shows "88" while emergency operation
is active on the indoor unit.
▪
If a safety device is activated during emergency operation, all actuators are
turned OFF.
▪
In cooling operation, the unit runs for 20 minutes and then stops for 10 minutes
in order to avoid freeze‑up of the indoor unit coil.
▪
In heating operation, defrost is activated for 3 minutes, once every hour.
▪
Emergency operation CANNOT be carried out when the PCB itself is seriously
damaged.
▪
Make sure to set the emergency switch on both the outdoor and indoor unit
PCB.
▪
Change the position of the emergency switch ONLY when the power is turned
OFF.
▪
When the communication between the indoor unit(s) and outdoor unit is
repaired, emergency operation will stop and the system returns to normal
operation.
2.4 Error based troubleshooting
2.4.1 E1-00 – Outdoor unit: PCB defect
Trigger
Effect
Reset
Main PCB detects that
EEPROM is abnormal.
Unit will stop operating.
Manual reset via user
interface.
Power reset.
Summary of Contents for Sky Air Advance RZA200D7Y1B
Page 1: ...Service manual Sky Air Advance series RZA200D7Y1B RZA250D7Y1B ...
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Page 192: ...ESIE19 13A 2020 05 Copyright 2020 Daikin Verantwortung für Energie und Umwelt ...