The black square (■) indicates a switch position.
Switch
Type
of
switch
Dip
switch
SW1
1
2
No.
Function Effective timing
Action by the switch operation
Compulsory defrosting
*1
Start Normal
When compressor is working
in heating operation.
*2
Abnormal history clear
When power supply ON
Clear Normal off or operating
SW4
1
6
5
4
3
2
Test run Operating OFF
Under suspension
Test run mode setting Heating Cooling
ON OFF
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Refrigerant address setting
0 1 2 3
1 2 3
4 5 6 7
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3
8 9 10 11
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3
12 13 14 15
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
*1. Compulsory defrosting should be done as follows.
1 Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2 Compulsory defrosting 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 compulsory defrosting finished.
• Pipe temperature is less than or equal to 8:.
• Compulsory defrosting will finish if certain conditions are satisfied.
*2. Compulsory defrosting 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.
10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
*3. ‘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.
*4. SW7-1,2 are used for demand control. SW7-1,2 are effective only at the demand control.
(Refer to the next page : Special function (b))
*5. Please do not use SW7-3 to 5 ordinarily. Trouble might be caused by the usage condition.