To Perform A Test Run - Daikin R32 Series Installer's Reference Manual

To perform a wiring error check

3(A)MXM+3(A)MXF+4MXM+5MXM

R32 Split series

4P600463-1B – 2020.05

INFORMATION

▪

You only have to perform a wiring error check if you are not sure that the

electrical wiring and piping is connected correctly.

▪

If you perform a wiring error check, the hybrid for multi indoor unit will not

operate by heat pump for 72 hours. During this time, the gas boiler will take over

the hybrid operation.

1 Remove the service PCB switch cover.

1×

1

2 Press the wiring error check switch (SW3) on the outdoor unit service PCB.

Result: The service monitor LEDs indicate whether correction is possible or

not. For details about how to read the LED display, refer to the service

manual.

Result: Wiring errors will be corrected after 15-20 minutes. If automatic correction

is not possible, check the indoor unit wiring and piping in the usual way.

INFORMATION

▪

The number of LEDs displayed depends on the number of rooms.

▪

The wiring error check function will NOT work if outside temperature is ≤5°C.

▪

After wiring error check operation is completed, LED indication will continue until

normal operation starts.

▪

Follow the product diagnosis procedures. For details of product error diagnosis

refer to service manual.

Status of LEDs:

▪

All LEDs flash: automatic correction is NOT possible.

▪

LEDs flash alternately: automatic correction is completed.

▪

One or more LEDs are permanently on: abnormal stop (follow the diagnosis

procedure on the back of the right side plate and refer to service manual).

Prerequisite: Power supply MUST be in the specified range.

Prerequisite: Test run operation may be done in cooling or heating mode.

Prerequisite: Test run should be done in accordance with the operation manual of

the indoor unit to make sure that all functions and parts are working properly.

1 In cooling mode, select the lowest programmable temperature. In heating

mode, select the highest programmable temperature.

A

1

2

2

3

4

5

SW3

7

Commissioning

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Installer reference guide

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