Service manual

ESIE03–01 General Functionality

Part 2 – Functional Description 2–7

1.4 Forced Operating Mode (Emergency Operation)

Applicable units The forced operating mode is applicable for the following units:

Purpose The table below describes the purpose of the forced operating mode.

Before switching Before moving the switches to emergency operation, make sure to turn OFF the power firstly.

During emergency operation, do not attempt to operate the equipment from the remote controller. The

remote controller displays 88 while the emergency operation is active on the indoor unit.

Switching To switch to forced operating mode, proceed as follows:

Model type For this unit, you can go to...

RP71-125L Forced cooling mode

RYP71-125L

P Forced cooling mode

P Forced heating mode

If... Then...

P Remocon is malfunctioning, or

P Indoor PCB is off line, or

P Outdoor PCB is off line

Forced operating mode can be used to go to cooling or heat-

ing. In forced operating mode, the compressor is forced to

operate until the malfunctioning indoor or outdoor PCB is

back online.

Step Action

1 Turn OFF the power.

2 Switch ON the emergency switch (SS1) on the indoor PCB.

3 Switch ON the emergency switch on the outdoor PCB.

Switch 2 is not applicable for the c/o units.

(

SS1)

norm

emergency

ON COOL

OFF HEAT