035-000051-001
Page 35 of 60
MMD IOM 1.2 11-10-2020
■P.C. Board Optional Switch/Connector Specifications (MCC
-1570)
SPECIAL INSTRUCTIONS—CONTROLS
Function
Connector
Pin
Function
Remarks
Fan
output
CN32
(WHI)
1
DC12V (COM)
Factory default setting : ON when indoor unit
in operation and OFF when indoor unit at
rest. *Fan can be operated on 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
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
ON while air conditioner in cooling or related
operation (COOL, DRY, or cooling under
AUTO mode)
By DN[DC] set as 0001 to 0010, this output
become “auxiliary heating” output.
5
Heating output
Cooling : Open, Heating : Close
6
Fan output
ON while fan ON
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 re-
mote control
4
In-operation output
ON during operation
5
DC12V (COM) for pin 4,
6
6
Alarm output
ON while alarm ON
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 be 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 be-
comes available (upon turning on of power)
Timer short-circuited out (always)
2
0V (COM)
EXCT
Demand
CN73
(RED)
1
Demand input
Forced thermo-off input
2
0V (COM)
External
error input
CN80
(GRN)
1
COM (DC12V)
Error input from outside (Interlock, error code
L30). Only if this condition continue more
than 1 minute.
2
COM (DC12V)
3
External error input
External
output
CN510
(WHI)
1
COM (DC12V)
2
(no function)
3
Fan tap “HH” output
Fan Speed (High)
4
(no function)
5
Fan tap “H” output
Fan Speed (Med)
6
(no function)
7
Fan tap “L” output
Fan Speed (Low)
8
(no function)
9
Electrical heater output
10-20
(No function)
Summary of Contents for Carrier MMD-AP0180VHG2UL
Page 2: ...035 000051 001 Page 2 of 60 MMD IOM 1 2 11 10 2020 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 4: ...035 000051 001 Page 4 of 60 MMD IOM 1 2 11 10 2020 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 6: ...035 000051 001 Page 6 of 60 MMD IOM 1 2 11 10 2020 PRODUCT NOMENCLATURE ...
Page 27: ...035 000051 001 Page 27 of 60 MMD IOM 1 2 11 10 2020 AIRFLOW PERFORMANCE ...
Page 31: ...035 000051 001 Page 31 of 60 MMD IOM 1 2 11 10 2020 SPECIAL FACTORY OPTIONS ...
Page 42: ...035 000051 001 Page 42 of 60 MMD IOM 1 2 11 10 2020 SPECIAL INSTRUCTIONS CONTROLS ...
Page 43: ...035 000051 001 Page 43 of 60 MMD IOM 1 2 11 10 2020 SPECIAL INSTRUCTIONS CONTROLS ...
Page 46: ...035 000051 001 Page 46 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 47: ...035 000051 001 Page 47 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 48: ...035 000051 001 Page 48 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 49: ...035 000051 001 Page 49 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 50: ...035 000051 001 Page 50 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 51: ...035 000051 001 Page 51 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 52: ...035 000051 001 Page 52 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 53: ...035 000051 001 Page 53 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 54: ...035 000051 001 Page 54 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS ...
Page 55: ...035 000051 001 Page 55 of 60 MMD IOM 1 2 11 10 2020 REPLACEMENT PARTS 19 ...
Page 56: ...035 000051 001 Page 56 of 60 MMD IOM 1 2 11 10 2020 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 58: ...035 000051 001 Page 58 of 60 MMD IOM 1 2 11 10 2020 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 59: ...035 000051 001 Page 59 of 60 MMD IOM 1 2 11 10 2020 THIS PAGE INTENTIONALLY LEFT BLANK ...