Service Functions - Mitsubishi Electric MSZ-FH09NA Service Manualce Manual

7

SERVICE FUNCTIONS

MSZ-FH09NA MSZ-FH12NA MSZ-FH15NA
7-1. TIMER SHORT MODE
For service, the following set time can be shortened by bridging JPG and JPS on the electronic control P.C. board.
(Refer to 9-7.)
Set time: 3 minutes → 3 seconds (It takes 3 minutes for the compressor to start operation. However, the starting time is
shortened by bridging JPG and JPS.)
7-2. 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.
7-3. 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
OBH683B
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
button. (Each press of the
Right
9
(Left) (Center)(Right)
button displays the