3-2 Control PCB switches and functions
CR-TRP50A-B
OC (CN040)
EMG (CN044)
VARISTOR
(VA041)
JP1
DISP (CN072)
EXCT (CN073)
FILTER
(JP001)
(CN070)
CHK (CN071)
FAN DRIVE
GRL
(CN032)
(CN020)
T10 (CN061)
POWER LED
(D002)
EEPROM
(IC010)
T10:
6 plug (yellow):
used for remote control. (Refer to the remote control section)
(CN061)
1
- start/stop input
2
- COM
3
- remote control prohibit/release input
4
- start signal output
5
- COM (+DC12v)
6
- alarm signal output T10
EXCT:
2P plug (red):
Can be used for demand control. When imput is present, forces the unit to operate
(CN073)
with the termostat OFF.
DISP:
2P plug (white):
Short-circuiting this plug allows the unit to be operated by the remote controller, even if it is not
(CN072)
connected to an outdoor unit. (In this case, alarm "E04", which indicates trouble in the serial communication
between the indoor and outdoor unit, does not occur.)
CHK:
2P plug (white): Test pin.
Short-circuiting this pin allows the indoor FM (H fan speed), drain pump,
(CN071)
flap motor (F1 position), and electronic expansion valve full-open position to checked. However this function
turns OFF if the indoor unit protection mechanism is activated. The unit can be operated even if the remote
controller and outdoor unit are not connected. However even if the remote controller cannot is connected,
it cannot be used to operate the unit. This function can be used for short-term tests.
JP1:
Jumper wire: Allows selection of the T10 terminal
(JP001)
12
Содержание 38.7105.951
Страница 10: ...2 DIMENSIONAL DATA Units mm 10...
Страница 13: ...4 FUNCTIONS 4 1 Room temperature control 13...
Страница 14: ...4 2 Automatic control for heating and cooling 14...
Страница 16: ...5 2 How to replace PCB 16...
Страница 17: ...5 3 How to replace EEPROM with EEPROM included in PCB service pack 17...
Страница 18: ...18...
Страница 19: ...5 4 Table of settings 19...
Страница 20: ...6 SERVICING AND MAINTENANCE FUNCTIONS 20...
Страница 21: ...7 TROUBLE DIAGNOSIS 7 1 Contents of remote controller switch alarm display 21...
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Страница 23: ...7 2 Outdoor unit control panel LED display 23...
Страница 24: ...7 3 Trouble indications and inspection points 24...
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Страница 26: ...7 4 Remote controller servicing functions 26...
Страница 27: ...7 5 Multiset alarm codes 27...
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