Daikin RXSQ24TAVJU, Service Manual

Page: 147 / 311

SiUS331708EA Test Operation
Field Settings and Test Operation 134
2. For normal operation
Set the master unit (the indoor unit with cooling and heating option rights)
For wired remote controller
„
After test operation is completed, the symbol MASTER CONTROLLED blinks on all connected remote
controllers.
„
Set the master unit as per customer's request.
(It is recommended to set the indoor unit with highest frequency of use as the master unit.)
„
Press the operation mode changeover button on the remote controller of the master unit.
„
Conduct cool/heat changeover with this remote controller and the symbol MASTER CONTROLLED
vanishes.
„
For other remoter controllers excluding the above, the symbol MASTER CONTROLLED lights up.
For wireless remote controller
„
After test operation is completed, timer lamps blink on all connected indoor units.
„
Set the master unit as per customer's request.
(It is recommended to set the indoor unit with highest frequency of use as the master unit.)
„
Press the operation mode changeover button on the remote controller of the master unit. Then a sound of
beeps can be heard and the timer lamps on all indoor units go out.
„
The indoor unit has the option rights to change between cooling/heating operation.
For details, refer to the installation manual included with the indoor unit.
„
After test operation is completed, operate the unit normally.
(Heating is not possible if the outdoor temperature is 24°C (75.2°F) or higher. Refer to the operation manual.)
(1) Check the indoor and outdoor units are in normal operation.
(If a knocking sound produced by liquid compression of the compressor can be heard, stop the unit
immediately.)
(2) Operate each indoor unit one by one and check the corresponding outdoor unit is also in operation.
(3) Check to see if cold (or hot) air is coming out from the indoor unit.
(4) Press the fan direction and strength buttons of the indoor unit to see if they operate properly.
About normal operation check
„
The compressor will not restart in about 5 minutes even if the ON/OFF button of the remote controller is
pressed.
„
When system operation is stopped by the remote controller, the outdoor unit may continue operating for
further 1 minute at maximum.
„
If any check operation was not performed through test operation on first installation, the error code U3 will be
displayed. In this case, perform check operation in accordance with “1. Powering on ~ test operation”.