Function Of Switches, Connectors And Jumpers - Mitsubishi Electric PUHZ-P200YHA Service Manual

11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS

(1) Function of switches
Type
No.
Function
of Switch
switch
1
Forced defrost 1
2
Abnormal history clear
3
4
SW1
Dip
Refrigerant address setting
switch
5
6
1
Test run
SW4
2
Test run mode setting
w1 Forced defrost should be done as follows.
1 Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2 Forced defrost will start by the above operation 1 if these conditions written below are satisfied.
• Heat mode setting
• 10 minutes have passed since compressor started operating or previous forced defrost finished.
• Pipe temperature is less than or equal to 8:.
• Forced defrost will finish if certain conditions are satisfied.
Forced defrost can be done if above conditions are satisfied when DIP SW1-1 is changed from OFF to ON.
After DIP SW1-1 is changed from OFF to ON, there is no problem if DIP SW1-1 is left ON or changed to OFF again. This
depends on the service conditions.
Type of
Switch No.
Switch
1
2
automatic recovery 2
SW5
3,4,5
6
1
Setting of demand
control
3
2
SW7
Dip
switch
4
Max Hz setting (cooling)
3
Max Hz setting (heating)
4
5
Defrost Hz setting
6
1
SW8 2
Use of existing wires
3
1
SW9
2
3,4
Push
SWP
switch
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 all units do not 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 SW7-3~5 usually. Trouble might be caused by the usage condition.
Action by the switch operation
ON
Start
Clear
ON
1 2 3 4 5 6
0
ON
1 2 3 4 5 6
4
ON
1 2 3 4 5 6
8
ON
1 2 3 4 5 6
12
Operating
Heating
Function
No function
Power failure
Auto recovery
No function
Model select
SW7-1
Max Hz(cooling)
Max Hz(heating)
No function
For high humidity
No function
No function
Existing wires
No function
Function switch
No function
Pump down
OFF
Normal
Normal
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
1 2
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
5 6
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
9 10
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
13 14
OFF
Cooling
Action by the switch operation
ON
—
No auto recovery
—
Refer to next page.
Power consumption
SW7-2
(Demand switch ON)
OFF OFF 0% (Operation stop)
ON OFF 50%
OFF ON 75%
Normal
0.8
Normal
0.8
—
Normal
—
—
Normal
—
Normal
Valid
—
Normal
Start
56
Effective timing
When compressor is working
in heating operation.
off or operating
3
7
When power supply ON
11
15
Under suspension
Effective timing
OFF
— —
When power supply ON
—
—
Always
Always
Always
— —
Always
— —
—
—
When power supply ON
—
—
Always
— —
Under suspension