Daikin RZQ100B8V3B Service Manual page 91

ESIE05-03
Step
3
4
5
Active components
Component
Compressor
4-way valve
Outdoor unit fan
Indoor unit fan
Drain pump
Additional info
Part 2 – Functional Description
Action
Switch ON the emergency switch on the outdoor PCB.
EMERGENCY
ON COOL
1 2 3 4
OFF HEAT
Set the emergency switch on the outdoor PCB to the forced mode you prefer (Cooling or
Heating).
EMERGENCY
ON COOL
1 2 3 4
OFF HEAT
Turn ON the power supply.
Forced cooling
ON
OFF
H fan speed
H fan speed
ON
During emergency operation, do not attempt to operate the equipment from the remote controller.
The remote controller shows "88" while the emergency operation is active on the indoor unit
If a safety device is activated during emergency, all actuators are turned OFF
In cooling, the unit runs for 20min and then stops for 10min in order to avoid freeze-up of the indoor
coil.
In heating, defrost is activated for 3 minutes once every hour.
Emergency operation can not be carried out when the PCB board itself is defective.
Be sure to set the emergency switch on both the outdoor and indoor unit.
The unit will not regulate the temperature during emergency operation.
Change the position of the emergency switch only when the power is turned off.
General Functionality
Forced heating Forced defrosting
ON ON
ON OFF
H fan speed OFF
H fan speed H fan speed
ON ON
1
2
3
4
5
2–7