10 Commissioning
Installation manual
21
2MXM-A9, 3MXM-A9, 4MXM-A9, 5MXM-A9
R32 Split series
3P600450-9T – 2022.09
9.2.1 To set the priority room function
1 Remove the switch cover on the service PCB.
2 Set the switch (SW4) for the indoor unit for which you want to
activate the priority room function to ON.
E
D
C
B
A
E
D
C
B
A
A
1
2
3
4
5
SW4
OFFON
2
1×
1
3 Reset the power.
9.3 About night quiet mode
The night quiet mode function makes the outdoor unit run more
quietly at nighttime. This will reduce the cooling capacity of the unit.
Explain Night quiet mode to the customer and confirm if customer
wants to use this mode.
9.3.1 To turn ON the night quiet mode
1 Remove the switch cover on the service PCB.
2 Set the night quiet mode switch (SW6-1) to ON.
9.4 About heat mode lock
Heat mode lock limits the unit to heat operation.
9.4.1 To turn ON heat mode lock
1 Remove the switch cover on the service PCB.
2 Set the heat mode lock switch (SW5-1) to ON.
1×
1
4
3
2
1
A
1
2
3
4
5
SW5
4
3
2
1
2
OFFON
9.5 About cool mode lock
Cool mode lock limits the unit to cool operation. Forced operation
remains possible in cool mode.
Specifications for the connector housing and pins: ST products,
housing VHR‑5N, pin SVH‑21T‑1,1
When cool mode lock is used in combination with the Hybrid for
Multi, these units will NOT operate by the heat pump.
9.5.1 To turn ON cool mode lock
1 Short-circuit pins 3 and 5 of connector S15.
10 Commissioning
NOTICE
General commissioning checklist. Next to the
commissioning instructions in this chapter, a general
commissioning checklist is also available on the Daikin
Business Portal (authentication required).
The general commissioning checklist is complementary to
the instructions in this chapter and can be used as a
guideline and reporting template during commissioning and
hand-over to the user.
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