77
Switch
Type
of
switch
DIP
switch
Push
switch
SW1
1
2
No.
Function Effective timing
Action by the switch operation
Manual defrost *1 Start Normal
When compressor is operating
in heating operation. *1
Abnormal history clear
Refrigerant address
setting
When power supply ON
Clear Normal Off or operating
SWP
6
5
4
3
Under suspension
Pump down Start Normal
SW4
SW8
1
2
1
2
3
Test run Operating OFF
Under suspension
Test run mode setting Heating Cooling
No function — —
No function
—
—
Separate indoor/outdoor
unit power supplies
Used Not used
—
—
When power supply ON
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
*1Manualdefrostshouldbedoneasfollows.
1 ChangetheDIPSW1-1ontheoutdoorcontrollerboardfromOFFtoON.
2 Manualdefrostwillstartbytheaboveoperation1ifalltheseconditionswrittenbelowaresatisfied.
·Heatmodesetting
·10minuteshavepassedsincecompressorstartedoperatingorpreviousmanualdefrostisfinished.
·Pipetemperatureislessthanorequalto46°F[8°C].
Manualdefrostwillfinishifcertainconditionsaresatisfied.
ManualdefrostcanbedoneifaboveconditionsaresatisfiedwhenDIPSW1-1ischangedfromOFFtoON.
AfterDIPSW1-1ischangedfromOFFtoON,thereisnoproblemifDIPSW1-1isleftONorchangedtoOFFagain.This
dependsontheserviceconditions.
10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
Theblacksquare(■)indicatesaswitchposition.
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