Manual Adjustment Function Of Outside Temp (To) Sensor; Service Support Function List - Toshiba Super MMU-AP0091H Service Manual

8-7-10. 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]
SW01 SW02 7-segment display [B]
1 [ 10 ]
2 [ 15 ]
3 [ 20 ]
4 [ 25 ]
1
5 [ 30 ]
6 [ 35 ]
7 [ 40 ]
8 [ 43 ]
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.
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.
[Clear]
Return numbers of SW01, SW02, and SW03 on the interface P .C. board in the outdoor unit to [1/1/1] each.
<Service support function list>
SW01 SW02 SW03
1
2
3
4
2 5 1
6
7
11
16
2 3
2 1 to 16 4 to 5
2 15
1
2
16 1 to 16
3
4
SW01 SW-2 SW03 7-segment display [A/B]
1 1 1
TO sensor value
10°C
15°C
20°C
25°C
30°C
35°C
40°C
43°C
7-segment display [A]
[ J C ] Refrigerant circuit and control communication line check function (Cooling operation)
[ J H ] Refrigerant circuit and control communication line check function (Heating operation)
[ P ] Indoor PMV forced full open function
[ A 1 ] Indoor remote controller discriminating function
[ C ] Cooling test operation function
[ H ] Heating test operation function
[ C H ] Indoor collective start/stop (ON/OFF) function
[ r d ] Outdoor refrigerant recovery operation function (Pump down function)
[ E r ] Error clear function
[ H r ] Solenoid valve forced open/close function
[ F d ] Fan forced operation function
[ t o ] Outside temp sensor manual adjustment function
[ 0 1] to [ 1 6 ] Indoor No. 1 to 16 unit
[ 1 7] to [ 3 2 ] Indoor No.17 to 32 unit
[ 3 3] to [ 4 8 ] Indoor No.33 to 48 unit
[ 4 9] to [ 6 4 ] Indoor No.49 to 64 unit
[ U 1 ] [ E28 ] Follower unit error / Corresponding unit fan operation function
• 7-segment display: [t o]
SW01 SW02 7-segment display [B]
9
10
11
12
1
13
14
15
16
Function contents
Indoor individual start/stop (ON/OFF) function
Function contents
125
TO sensor value
[ 45 ] 45°C
[ –15 ] –15°C
[ –10 ] –10°C
[ – 5 ] –5°C
[ 0 ] 0°C
[ 2 ] 2°C
[ 5 ] 5°C
[ 7 ] 7°C