5MXS48TVJU 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.
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
Setting procedure
Turn the night quiet mode switch (SW6-1) to on.
COOL/HEAT mode lock [S15]
1) Remove the top plate (10 screws).
2) Remove the right side plate (6 screws).
3) Remove the front plate (1 screw).
• The front plate is heavy, so take care.
4) Remove the shield plate (2 screws).
5) 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.
6) Reattach the shield plate, front plate, right side
plate and top plate to their original positions.
• Attach so that the shield plate hooks
(2locations)aresecurelyengaged.
Top plate
Right side plate
Shield
plate
Front plate
Hooks
HEAT mode (H)
COOL mode (C)
S15 connector
5
3
1
01_EN_3P537039-1.indd 15 9/12/2018 7:37:47 PM