Function Of Connector - Mitsubishi Electric PUZ-A18NHA4 Service Manual

Type of
No.
Switch
Switch
1
2
SW5
3,4,5
6
1
2
SW7
4
Max. Hz setting(cooling)
3
Max. Hz setting(heating)
4
5
Dip
6
switch
1
SW9
2
3,4
1
2
3
4
SW6
5
6
7
8
5
SW5
6
w2 Power failure automatic recovery can be set by either remote controller or this DIP SW. If one of them is set to ON, Auto
recovery activates. Please set Auto recovery basically by remote controller because not all units have DIP SW.
Please refer to the indoor unit installation manual.
w3 SW7-1,2 are used for demand control. SW7-1,2 are effective only at the demand control.
(Refer to next page : Special function (b))
w4 Please do not use SW7-3~6 usually. Trouble might be caused by the usage condition.

(2) Function of connector

Types
Connector
Connector CN31
Function
No function
Power failure
automatic recovery 2
No function
Model select
Setting of demand
control
3
Max. Hz(cooling) 0.8
Max. Hz(heating) 0.8
No function
Defrost setting
No function
Function switch
No function
MODEL
PUZ-A18NHA4
PUZ-A24NHA4
Model select
PUZ-A30N HA4
PUZ-A36N HA4
PUZ-A42N HA4
The black square (■) indicates a switch position.
Function
Emergency operation
Action by the switch operation
ON
—
Auto recovery
—
Following SW5-6 reference
Power consumption
SW7-1 SW7-2
(Demand switch ON)
OFF OFF
0% (Operation stop)
ON OFF
OFF ON
—
For high humidity
—
Valid
—
SW6 SW5-5.6
ON ON
OFF OFF
1 2 3 4 5 6 7 8 1 2 3 4 5 6
ON ON
OFF OFF
1 2 3 4 5 6 7 8 1 2 3 4 5 6
ON ON
OFF OFF
1 2 3 4 5 6 7 8 1 2 3 4 5 6
ON ON
OFF OFF
1 2 3 4 5 6 7 8 1 2 3 4 5 6
ON ON
OFF OFF
1 2 3 4 5 6 7 8 1 2 3 4 5 6
Action by open/ short operation
Short
Start
72
OFF
—
No auto recovery When power supply ON
—
50%
75%
Normal
Normal
—
Normal
—
Normal
—
MODEL SW6
ON
PUY-A12NHA4
OFF
1 2 3 4 5 6
ON
PUY-A18NHA4
OFF
1 2 3 4 5 6
ON
PUY-A24NHA4
OFF
1 2 3 4 5 6
ON
PUY-A30N HA4
OFF
1 2 3 4 5 6
ON
PUY-A36N HA4
OFF
1 2 3 4 5 6
ON
PUY-A42N HA4
OFF
1 2 3 4 5 6
Open
When power supply ON
Normal
Effective timing
—
—
Always
Always
Always
—
Always
—
Always
—
SW5-5.6
ON
OFF
7 8 1 2 3 4 5 6
ON
OFF
7 8 1 2 3 4 5 6
ON
OFF
7 8 1 2 3 4 5 6
ON
OFF
7 8 1 2 3 4 5 6
ON
OFF
7 8 1 2 3 4 5 6
ON
OFF
7 8 1 2 3 4 5 6
Effective timing