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ESIE16-02K
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Part 5. Appendix
5.1. Field setting
RA R32 Split & multi split M-Series
31/05/21
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Version 1.1
Page 99
5.1.2.2.2 Dip switch settings
Figure 5-5: Dip switch location
1. Service monitor LEDs
6. Cool/heat selector
2. Connector for D checker
7. J_DP jumper
3. SW4
8. SW3
4. SW6
9. SW1
5. SW5
SW1
Forced operation
• In combination with the cool/heat selector switch the unit can be started in cooling or heating.
• Is also used to activate the inverter checker mode.
SW3
Cross wiring check (figure 5-5 on page 99).
J_DP jumper
Not used.
Cool/heat selector
• Used in combination with the SW1.
• Must be set in cooling for pump down operation.
SW4
Priority room setting.
The indoor unit for which priority room setting is applied takes priority in the following cases.
1-1 Operation mode priority
The operation mode of the indoor unit which is set for priority room setting takes priority. If the set indoor unit is operating, all other
indoor units do not operate and enter standby mode, according to the operation mode of the set indoor unit.
1-2 Priority during high-power operation
If the indoor unit which is set for priority room settings is operating at high power, the capabilities of other indoor units will be some-
what reduced. Power supply gives priority to the indoor unit which is set for priority room setting.
1-3 Quiet operation priority
Setting the indoor unit to quiet operation will make the indoor unit run quietly.
Setting procedure
Slide the switch to the ON side for the switch that corresponds to the piping connected to the indoor unit to be set (in the figure below,
it is room A).
BE SURE TO SET ONLY ONE ROOM.
SW5
SW5-1 Heat mode lock
• This setting will force the unit to only operate in heating.
SW5-2: not used
SW5-3: cold region setting for increased max. Hz at low ambient
SW5-4: cold region setting for defrost change
SW6
SW6-1 Night quiet mode
About Night Quiet Mode
The Night Quiet Mode function reduces operating noise of the outdoor unit at night time. This function is useful if the customer is wor-
ried about the effects of the operating noises on the neighbours.
SW6-2
• Not
used.
2
3
4
5
6
7
9
1
8
SW5-4
cold region setting for defrost change
3MXM40/52/68,4MXM68/80,5MXM90
Service PC-board
Remove
the switch
cover
Screw
Heat Mode Lock (SW5-1)
SW5-3
cold region setting for increased max. Hz at low ambient