3MXL24RMVJUA Installation Manual

15 ■English
Night Quiet Mode setting
• Ifnightquietmodeistobeused,initialsettingsmustbemadewhentheunitisinstalled.Explainnightquietmode,asdescribed
below,totheuser,andconrmwhetherornottheuserwantstousenightquietmode.
About night quiet mode
The night quiet mode function reduces operating noise of the outdoor unit at nighttime. This function is useful if the user is
worried about the effects of the operating noise on the neighbors.
However, if night quiet mode is running, cooling capacity will be saved.
Setting procedure
Turn the night quiet mode switch (SW6-1) to on.
COOL/ HEAT mode lock [S15]
• Use the S15 connector to set the unit to only cool or heat.
Setting to only heat (H) : short-circuit pins 1 and 3 of the connector [S15]
Setting to only cool (C) : short-circuit pins 3 and 5 of the connector [S15]
Thefollowingspecicationsapplytotheconnectorhousingandpins.
JST products Housing: VHR-5N
Pin: SVH-21T-1,1
NotethatforcedoperationisalsopossibleinCOOL/HEATmode.
COOL mode (C)
HEAT mode (H)
1 3 5
Service PC-board
HEAT
COOL
4
3
2
1
2
1
E
D
C
B
A
COOL
4
3
2
1
2
1
E
D
C
B
A
Screw
Remove
the switch
cover
Night quiet mode
setting switch
(SW6-1)
2
1
ON OFF
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