11
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Configuration
Installer reference guide
57
3AMXF-A9, 3AMXF-A9, 3AMXM-N9
R32 Split series
4P600463-1F – 2022.05
2
1
A
1
2
3
4
5
2
1
SW6
2
OFF
ON
1×
1
2
Set the night quiet mode switch (SW6-1) to ON.
11.4 About heat mode lock
Heat mode lock limits the unit to heat operation.
11.4.1 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.
4
3
2
1
4
3
2
1
A
1
2
3
4
5
SW5
2
OFF
ON
1×
1
11.5 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.
11.5.1 To turn ON cool mode lock
1
Short-circuit pins 3 and 5 of connector S15.