Feature Settings - Mitsubishi Electric Fresh Master GUF-50RD3 Installation Instructions Manual

9. Feature settings

Caution:
* Always turn off the main power supply.
* Remove the control box cover.
9.1. Address setting
(Determining the address depends on the own-site system. Please
see to technical references, etc.)
Remove the control box cover.
Turn the address setting switch on the board using a Phillips screw-
driver.
• The left side (SW12) shows the second digit and the right side
(SW11) shows the first digit.
• The switch is set to 00 when factory shipped.
• Set the address between 1 and 50.
9.2. When using an R2 series external
unit, setting for the branch No. is
also required.
Turn the branch controller No. setting switch (SW14) on the board
using a Phillips screwdriver.
• Set the refrigerant pipe of the external unit and the connected branch
controller to the same number.
• The switch is set to 0 when factory shipped.
SW12 SW11
Second digit First digit
9.3. Feature select switches
(SW1, SW3, SW2)
* When shipped from the factory
Items concerning humidifying is for GUF-50
SW1
OFF ON
Fan test operation switch (test operation when ON)
1
2 Filter maintenance display (displayed when ON)
3
Filter maintenance time setting switch
4
5
Do not touch
6
Damper motor test operation (test operation when
7
ON)
Solenoid valve test operation for humidifier water supply (test
8
operation when ON) Do not touch GUF-50
9
Auto-recovery during power failure (active when on)
10
Power supply ON/OFF (test operation when on)
10
SW14
10
Branch No.
100RDH3 only.
•
10
Notes:
100RD3
•
*
SW3 ---- GUF-50 100RDH3
•
OFF ON
Synchronous air-conditioning switch (async when
1
ON)
2 Humidifier mode (OFF: humidifier; ON: heat save)
3
Heater operation during synchronous operation/
4
stop temperature switch
5
Exhaust fan operation when supply fan is stopped
6
(exhaust fan also stopped when ON)
7
Do not touch
8 Automatic humidifier control (active when ON)
9
Do not touch
SW3 ---- GUF-50 100RD3
•
OFF ON
Synchronous air-conditioning switch (async when
1
ON)
2
3
Do not touch
4
5
Exhaust fan operation when supply fan is stopped
6
(exhaust fan also stopped when ON)
Do not touch
7
Room temperature detected at main unit is decreased
8
by 4°C when heating. (OFF: active; ON: inactive)
Room-temperature sensor location (OFF: main
9
unit; ON: remote control)
Do not touch
SW2
OFF ON
1
2
3
Do not touch
4
5
6
7 Fan speed control method select switch
7: OFF, 8: ON fix to High speed.
8
Both ONs fix to Low speed.
9
Do not touch
The switches are vertical for explanation purposes.
17