Mitsubishi Electric City Multi PEFY-M20VMA-A Technical & Service Manual page 38

[ VII Troubleshooting ]
2. Capacity code setting
(1) SW2
Dipswitch settings must be made while the unit is stopped.
Factory setting
The switches are set to correspond to the unit capacity.
PEFY-M20VMA(L)(2)-A
ON
1 2 3 4 5 6
PEFY-M50VMA(L)(2)-A
ON
1 2 3 4 5 6
PEFY-M100VMA(L)(2)-A PEFY-M125VMA(L)(2)-A PEFY-M140VMA(L)-A
ON
1 2 3 4 5 6
ON
The figure at left shows that the switches 1 through 5 are set to ON and 6 through 10 are set to OFF.
1 2 3 4 5 6 7 8 9 10
3. Model setting
(1) SW4
Dipswitch settings must be made while the unit is stopped.
Factory setting
Please see the WIRING LABEL on the control box.
Note:
Changes made to the dipswitches SW1, SW2, and SW3 will become effective when the unit comes to a stop (remote controller
off). There is no need to power cycle the unit.
4. Power voltage setting
(1) SW21-6
Dipswitch settings must be operated with the main power turned OFF.
Factory setting
Please see the WIRING LABEL on the control box.
Set SW21-6 to OFF side when the power supply is 240 volts.
When the power supply is 220 and 230 volts, set SW21-6 to ON side.
5. External static pressure
Five levels of external static pressure are available for selection.
Set the setting either by using the switches on the control board (SW21-1, SW21-2, and SW21-5) or from the function selection
screen on the remote controller.
Note:
When the static pressure setting was set from the remote controller, the actual setting and the switch setting on the
control board may not match because the latest setting from the remote controller overrides the previous setting.
To check the latest static pressure setting, check it on the remote controller, not on the switch.
If the static pressure setting for the duct is lower than that for the unit, the fan of the unit may repeat start/stop, and
the outdoor unit may remain in a stopped state. Match the static pressure settings for the unit to that for the duct.
HWE19070
PEFY-M25VMA(L)(2)-A
ON
1 2 3 4 5 6
PEFY-M63VMA(L)(2)-A
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
PEFY-M32VMA(L)(2)-A
ON
1 2 3 4 5 6
PEFY-M71VMA(L)(2)-A
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
- 31 -
PEFY-M40VMA(L)(2)-A
ON
1 2 3 4 5 6
PEFY-M80VMA(L)(2)-A
ON
1 2 3 4 5 6
GB