Service Functions - Mitsubishi Electric MSZ-LN25VGW Service Manual

8

SERVICE FUNCTIONS

MSZ-LN25VGW MSZ-LN35VGW MSZ-LN50VGW MSZ-LN60VGW
MSZ-LN25VGV
MSZ-LN25VGB
MSZ-LN25VGR
8-1. TIMER SHORT MODE
For service, the following set time can be shortened by bridging the timer short mode point on the electronic control P.C.
board.
(Refer to 10-7.)
• The set time for the ON/OFF timer can be reduced to 1 second for each minute.
• After the breaker is turned on, the time for starting the compressor, which normally takes 3 minutes, can be reduced to 1
minute. Restarting the compressor, which takes 3 minutes, cannot be reduced.
8-2. HOW TO SET REMOTE CONTROLLER EXCLUSIVELY FOR A PARTICULAR INDOOR UNIT
A maximum of 4 indoor units with wireless remote controllers can be used in a room.
To operate the indoor units individually with each remote controller, assign a number to each remote controller according
to the number of the indoor unit.
This setting can be set only when all the following conditions are met:
• The remote controller is powered OFF.
• Weekly timer is not set.
• Weekly timer is not being edited.
(1) Hold down
(2) Press button again and assign a number to each remote controller.
Each press of
(3) Press button to complete the pairing setting.
After you turn the breaker ON, the remote controller that first sends a signal to an indoor unit will be regarded as the
remote controller for the indoor unit.
Once they are set, the indoor unit will only receive the signal from the assigned remote controller afterwards.
8-3. SETTING THE INSTALLATION POSITION
Be sure to set the remote controller according to the installed position of the indoor unit.
Installation position:
Left: Distance to objects (wall, cabinet, etc.) is less than 50 cm to the left
Center: Distance to objects (wall, cabinet, etc.) is more than 50 cm to the left and right
Right: Distance to objects (wall, cabinet, etc.) is less than 50 cm to the right
The installation position can be set only when all the following conditions are met:
• The remote controller is powered OFF.
• Weekly timer is not set.
• Weekly timer is not being edited.
(1) Hold down
(2) Select the target installation position by pressing
positions in order: center → right → left.)
(3) Press button to complete the position setting.
Installation position
Remote controller
display
OBH766
MSZ-LN35VGV MSZ-LN50VGV
MSZ-LN35VGB MSZ-LN50VGB
MSZ-LN35VGR MSZ-LN50VGR
button on the remote controller for 2 seconds to enter the pairing mode.
button advances the number in the following order: 1 → 2 → 3 → 4.
button on the remote controller for 2 seconds to enter the position setting mode.
Left Center
MSZ-LN60VGV
MSZ-LN60VGB
MSZ-LN60VGR
button. (Each press of the
Right
9
(Left) (Center)(Right)
button displays the