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NOTE) Emergent operation should be restricted to one day or so on. If operating TO sensor fixed with this
function, the system control operation of the air conditioner may not become one based upon the
specification of the product. Therefore an emergent operation should be restricted to a day or so on.
[Clear]
Return numbers of SW01, SW02, and SW03 on the interface P.C. board in the header unit to [1/1/1] each.
Service support function list
8-7-9. Manual Adjustment Function of Outside Temp (TO) Sensor
This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board in
the outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation is avail-
able by set up the value manually to position near the current outside temperature.
[Operation]
1. Set the rotary switches on the interface P.C. board to numbers as follows.
• SW01 [2] / SW02 [1] / SW03 [15] • 7-segment display: [t o]
2. Keep pushing the push-switch SW04 on the interface P.C. board for 1 second or more.
The mode changes to the TO sensor value fix manual mode.
3. As shown in the following table, TO sensor value can be fixed by setting the rotary switch SW02 on the
interface P.C. board.
SW01 SW02 SW03 7-segment display [B] TO sensor value SW01 SW02 SW03 7-segment display [B] TO sensor value
1[10]10°C9[45]45°C
2[15]15°C10[– 15 ] –15°C
3[20]20°C11[– 10 ] –10°C
4[25]25°C12[– 5] –5°C
5[30]30°C13[0]0°C
6[35]35°C14[2]2°C
7[40]40°C15[5]5°C
2
8
15
[43] 43°C
2
16
15
[7] 7°C
SW01 SW02 SW03 7-segment display [A] Function contents
1 [ J C ] Refrigerant circuit and control communication line check function (Cooling operation)
2 [ J H ] Refrigerant circuit and control communication line check function (Heating operation)
3 [ P ] Indoor PMV forced full open function
4 [ A 1 ] Indoor remote controller discriminating function
5 [ C ] Cooling test operation function
6 [ H ] Heating test operation function
7 [ C H ] Indoor collective start/stop (ON/OFF) function
2
16
1
[ E r ] Error clear function
3 [ H r ] Solenoid valve forced open/close function
4 to 5 [ F d ] Fan forced operation function
2 1 to 16
15 [ t o ] Outside temp sensor manual adjustment function
1 [ 0 1 ] to [ 1 6 ] Indoor No. 1 to 16 unit
2 [ 1 7 ] to [ 3 2 ] Indoor No.17 to 32 unit
3 [ 3 3 ] to [ 4 8 ] Indoor No.33 to 48 unit
16 1 to 16
4 [ 4 9 ] to [ 6 4 ] Indoor No.49 to 64 unit
Indoor individual start/stop (ON/OFF) function