5
Outdoor unit
90
Model
name
Appearance
Function
TCB-PCMO4UL
Size: 2.19 × 2.35 (in)
[4] Snowfall fan control
Application
* Install the optional
PCB in the inverter
assembly of the
outdoor header unit.
Model
name
Appearance
Function
TCB-PCIN4UL
Size: 2.87 × 3.11 (in)
[1] Error / Operation Output
Application
* Install the optional
PCB in the inverter
assembly of the
outdoor header unit.
Function
The outdoor unit fan operates at snowfall by connecting to the outdoor
unit interface PCB.
Operation
SW1: Snowfall detection switch (snowfall sensor)
Provide no-voltage continuous contacts for each terminal.
Terminal
Input Signal
Operation
Cooling (SW1)
ON
OFF
Snowfall fan control (Fan in
outdoor unit operates.)
ON
OFF
Normal operation
7
1
J
P
TB1
SW1
COM
HEAT
COOL
Locally procured
Optional PCB
Snowfall sensor
Shield
wire
Outdoor unit
interface PCB
Connection cable
(attached in this
optional PCB)
Header outdoor unit
CN509
Function
The operation error output PCB can indicate operation and error states
by connecting to the interface PCB of outdoor units.
Operation
Operation output: The operation indicator is on while any indoor unit in
the
system
is
operating.
Error output:
The error indicator is on when an error is occurred on
even one of the indoor or outdoor units in the system.
Wiring example
* [OUTPUT3] is displayed when power is turned on.
C1
Attached connection cable 1 (4wires)
CN511
Connector on interface side (green)
K1, K2
Relays
L1
Error indication Lamp
L2
Operation indication Lamp
OUTPUT1
Error output
OUTPUT2
Operation output
PJ20
Connector on optional PCB side
PS
Power supply unit
TB1
Terminal block
OUTPUT1
PJ20
OUTPUT2
OUTPUT3
TB1
L1
L2
1
2
5
6
4
3
C1
PS
PS
K1
K2
1
ON
OFF
2 3 4
SW16
Outdoor unit
interface PCB
Optional PCB
Locally procured
Header outdoor unit
Shield
wire
CN511
Summary of Contents for Carrier MMC-AP0181H2UL
Page 61: ...5 Outdoor unit 60 Model MMY MAP0964HT9UL MAP0964HT6UL MMY MAP1144HT9UL MAP1144HT6UL 72 9 ...
Page 76: ...5 Outdoor unit 75 Model MMY MAP0724FT6UL 460 V 60 Hz WHI WHI WHI PUR ...
Page 77: ...5 Outdoor unit 76 Model MMY MAP0964FT9UL MAP1204FT9UL 208 230 V 60 Hz ...
Page 78: ...5 Outdoor unit 77 Model MMY MAP0964FT6UL MAP1204FT6UL 460 V 60 Hz WHI WHI WHI PUR ...
Page 79: ...5 Outdoor unit 78 5 6 2 Heat pump Model MMY MAP0724HT9UL ...
Page 80: ...5 Outdoor unit 79 Model MMY MAP0724HT6UL ...
Page 81: ...5 Outdoor unit 80 Model MMY MAP0964HT9UL MAP1144HT9UL ...
Page 82: ...5 Outdoor unit 81 Model MMY MAP0964HT6UL MAP1144HT6UL ...
Page 212: ...MEMO ...
Page 213: ...Engineering Data Book For North America August 2015 First Edition ...