Mitsubishi Electric PKA-RP1.6GAL Service Technical Manual page 65

Fixing method of the compressor operating frequency
The compressor operating frequency can be fixed by setting the SW2 (a switch of "A Control Service Tool PAC-SK52ST)
and turning on/off the SW5-1 on the controller board. However, the setting may not be fixed to the desired value in case of
a couple of minutes right after the start-up, in case the operating frequency is limited to some extents by various restrictive
controls such as the SW7-3 to 6 settings and in case the operating frequency is set to be out of the operating frequency
range designated for each model. Check the operating frequency on the LED display of the outdoor unit every time the
setting is changed.
SW2
1 2 3 4
0 0 0 0
0 0 1 0
0 1 0 1
0 0 0 0
1 0 0 1
1 1 0 0
0 0 1 1
0 0 1 0
0 1 0 1
1 1 1 1
w Frequency can be set by the combination of the 6-bit binary digit as shown above. (SW2-1 stands for the lowest bit, and
SW2-6 stands for the upper bit.)
9-2-2. Function of connectors and jumpers
Types Connector
Connector CN31
SW6-1
(J1)
SW6-2
(J2)
SW6-3
(J3)
SW6
SW-6-4
or
(J4)
Jumper
SW6-4
(J5)
SW6-5
(J6)
SW6-6
(CN31)
0 : OFF
1 : ON
Setting
5 6
Hz
0 0 20
0 0 30
0 0 43
53
1 0
63
1 0
0 1 73
0 1 83
1 1 94
1 1 108
1 1 118
Function
Emergency operation
Power supply setting
Switch of cooling
only/cooling and
heat pump
Capacity settings
Action by open/ short operation
Short
(ON side) Start
(OFF side) Normal
3 phase Single phase
Cooling and
Cooling only
heat pump
:ON(Short)
SW6(JP)
1 2
Model
PUHZ-RP1.6VHA
PUHZ-RP2VHA
PUHZ-RP2.5VHA
PUHZ-RP3VHA
PUHZ-RP4VHA
PUHZ-RP5VHA
PUHZ-RP6VHA
65
Effective timing
Open
When power supply ON
Always
When power supply ON
Always
:OFF(Open)
3 4 5 6