Toshiba MMU-AP0072H2UL Engineering Data Book page 92

5
Outdoor unit
Model
Appearance
name
Size: 2.87 × 3.11 (in)
Application
* Install the optional
PCB in the inverter
assembly of individual
outdoor unit.
[2] Compressor Operation Output
Function
While each compressor in the outdoor unit is running, the compressor
operation signal is displayed. This function can also be used to measure
the elapsed time for the compressor operation.
Operation
While a compressor is in operation, the relay of the
output terminal corresponding to the compressor turns
on (closed). When the operation of a compressor is off,
the relay turns off (opened).
The output terminals are "OUTPUT1", "OUTPUT2"
and "OUTPUT3" from left to right of the compressors facing to the
front of the outdoor unit.
Wiring example
Outdoor unit
Optional PCB
Outdoor unit
interface PCB
C2
K1
SW16
CN514 K2
PJ20
ON
OFF
1 2 3 4
K3
C2 Attached connection cable 2 (5wires)
CN514 Connector on interface side (green)
CTR1 Elapsed operation counter 1
CTR2 Elapsed operation counter 2
CTR3 Elapsed operation counter 3
K1, K2, K3 Relays
L1, L2, L3 Operation indication LEDs
OUTPUT1 Compressor 1 operation output terminal
OUTPUT2 Compressor 2 operation output terminal
OUTPUT3 Compressor 3 operation output terminal
PJ20 Connector on optional PCB side
PS Power supply unit
TB1 Terminal block
91
Function
1 2 3
Locally procured
TB1
L1
1 CTR1
OUTPUT1
2
L2
CTR2
3
OUTPUT2
4
L3
CTR3
5
OUTPUT3
6
Shield
wire
1 2
PS
PS
PS