57
Switch
Type
of
switch
Dip
switch
SW1
1
2
No.
Function
Effective timing
Action by the switch operation
Forced defrost
Start
Normal
When compressor is working
in heating operation.
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Abnormal history clear
Refrigerant address setting
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
0
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
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
Forced defrost should be done as follows.
1
Change the DIP SW1-1 on the outdoor controller circuit 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 compulsory defrosting finished.
• Pipe temperature is less than or equal to 8
:
.
3
Forced defrost will finish if certain conditions are satisfied.
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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.
12-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
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1 ‘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 have not DIP SW.
Please refer to 13. FUNCTION SETTING.
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2 Refer to the page for the wiring.
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3 RP250 is always ON.
1
2
3
4
3
4
5
6
1
2
3
1
2
ON
OFF
No.
Function
Effective timing
Action by the switch operation
No function
Power failure
automatic recovery
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1
No function
No function
No function
No function
No function
No function
Use of existing pipe
Replacement operation
No function
Fan speed setting
No function
Pump down
Switch
SW5
SW7-1 SW7-2
Power consumption
when external input
OFF
OFF
ON
0% (STOP)
50%
70%
OFF
ON
OFF
SW7
Dip
switch
Push
switch
SW8
SW9
SWP
Type of
Switch
—
Auto recovery
—
—
—
—
—
—
Used or RP250Y
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3
Start
—
High external static pressure
—
Start
—
No auto recovery
—
—
—
—
—
—
Not used
Normal
—
Normal
—
Normal
—
When power supply ON
—
—
Always
—
—
—
—
Always
Always
—
Always
—
Under suspension
Switch to
"Demand function"
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2
1
2
OC338C-2.qxp 07.5.24 11:30 AM Page 57
