42
CONNECTOR SPECIFICATIONS OF P.C. BOARD MCC- 1570
Table 24 – Connector Specifications of P.C. Board MCC- 1570
Function Connector Pin Function Remarks
Output signal of
Fan speed,
Electric Heater,
Cooling Stage1,
Cooling Stage2
CN510
(WHI)
1 COM (DC12V) Connected to MCC - 1431/CN02PIN1
2 (no function)
3 Fan speed “Low” output Connected to MCC- 1431/CN02PIN3
4 Cool ing Stage1 Connected to Cooling Stage1 relay
5 Fan speed “Medium” output Connected to MCC- 1431/CN02PIN5
6 Cool ing Stage2 Connected to Cooling Stage2 relay
7 Fan speed“High” output Connected to MCC- 1431/CN02PI N7
8 (no function)
9 Electrical heater output Connected to MCC- 1431/CN02PI N9
10- 20 (No function)
External error input
CN80
(GRN)
1 COM (DC12V)
Error input from outside (EconoMi$er or others ).
Only if this condition continue more than 1 minute.
Connected to Alarm relay or other equipments.
2 (no function)
3 External error input
Thermo OFF input
(F ree cooling
mode input)
CN73
(RED)
1 Demand input
Forced thermo- off input.
Connected to Thermo OFF relay.
2 0V (COM)
HA
CN61
(YEL)
1 ON/OFF input Start/Stop input
2 0V (COM) for pin 1, 3
3 Remote control disabling input Enables/Disables start/stop control via remote control
4 Operation ON output ON signal output during Remote controller ON
5 DC12V (COM) for pin 4, 6
6 Alarm output ON signal outp ut during alarm ON
Optional output
CN60
(WHI)
1 DC12V (COM)
2 Defrosting output ON while outdoor unit defrosted
3 Thermostat ON output ON while real thermostat ON
4
Cooling output / auxiliary heating
output
SW501bit1/2=ON/OFForOFF/ONset,ONwhileaircondi-
tioner in cooling or related operation (COOL, DRY, or cool-
ing under AUTO mode)
SW501 bit1/2=O FF/OFF or ON/ON and DN[DC] set as
0001 to 0010, this output become “auxili ary heating” output.
5 Heating output
Cooling : Open, Heating : Close. Connected to Heating
outpu relay.
6 Fan output ON while fan ON
Fan
output
CN32
(WHI)
1 DC12V (COM)
Factory default setting : ON when indoor unit in operation
andOFFwhenindoorunitatrest.*Fancanbeoperatedon
its own by pressing FAN button on remote control (DN31)
2 Fan Output
Float switch input
CN34
(RED)
1 COM (DC12V)
Error code P10, Normal close.
(Short pin is connected as default)
2
3 External safety contact
Option error input
CN70
(WHI)
1 Option
Option error input
2 0V (COM)
CHK
Operation check
CN71
(WHI)
1 Check mode input
Used for indoor operation check (prescribed operational
status output, such as indoor fan “H”, to b e generated
without communication with outdoor unit or remote
controller).
2 0V (COM)
DISP
Display mode
CN72
(WHI)
1 Display mode input
Product display mode –Communication just between indoor
unit and remote control becomes available (upon turning on
of power) Timer short- circuited out (always)
2 0V (COM)
40QQ
To Next Page
Loading...
