Manual Adjustment Function Of Outside Temperature (To) Sensor; Service Support Function List - Toshiba MMY-MUP0801HT8JP Service Manual

7-7-9. Manual Adjustment Function of Outside Temperature (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
available by setting 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/SW02/SW03 to [2/1/15]
• 7-segment display: [ t o ]
(2) Keep pressing 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) Pressing the push-switch SW04 increases the setting temperature and pressing the SW05 decreases the
setting temperature. Set the temperature to any values.
[Clear]
Return SW01/SW02/SW03 on the interface P.C. board in the outdoor unit to [1/1/1].
NOTE) If operated with TO sensor fixed by this function, the system control operation of the air conditioner
may not be based on the specification of the product. Therefore an emergent operation should be
restricted to a day or so.
When the outside temperature is 45ºC or more, set to 45ºC (SW02="9")
<Service support function list>
SW01 SW02 SW03
1
2
3
4
2 1
5
6
7
9
11
16
2 3
1~16
2 1~16 4~7
1~16
2 15
1
2
3
4
16 1 to 16
5
6
7
8
SW01 SW02 SW03
1 1 1
7-segment display [A]
Refrigerant circuit and control communication line check function (Cooling
[J . C]
operation)
Refrigerant circuit and control communication line check function (Heating
[J . H]
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
[F . ] Fan test operation function
[r . d] Outdoor refrigerant recovery operation function (Reclaim function)
[E . r] Check code clear function
[H . r] Solenoid valve forced open/close function
[F . d] Fan forced operation function
[t . o] Outside temperature sensor manual adjustment function
[01] to [16] Indoor No. 1 to 16
[17] to [32] Indoor No. 17 to 32
[33] to [48] Indoor No. 33 to 48
[49] to [64] Indoor No. 49 to 64
[65] to [80] Indoor No. 65 to 80
[81] to [96] Indoor No. 81 to 96
[97] to [112] Indoor No. 97 to 112
[113] to [128] Indoor No. 113 to 128
7-segment display [A/B]
[U 1] [ E28 ] Follower unit check code / Corresponding unit fan operation function
Function contents
Function contents
- 163 -
Set number of SW02
Set number of SW02 + 16
Set number of SW02 + 32
Set number of SW02 + 48
Set number of SW02 + 64
Set number of SW02 + 80
Set number of SW02 + 96
Set number of SW02 + 112