Compressor Operation Output - Toshiba MMY-MAP0804HT8-E Service Manual

6-8-8. Compressor Operation Output

Operation
When a compressor is in operation, a relay connected to the output terminal assigned to it is turned on (closed).
When it is at rest, the relay is turned off (open).
The output terminals are named OUTPUT1, OUTPUT2 and OUTPUT3 from left to right when facing the front of
the outdoor unit, as shown in the diagram.
Note 1: Output Relay (K1, K2, K3) Contact Specifications
• Output terminals (OUTPUT1, 2, 3) must satisfy the following electrical rating.
• When connecting a conductive load (e.g. relay coil) to loads K1, K2 and K3, insert a surge killer CR (for an AC
power supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit.
<Electrical Rating>
220-240 VAC, 10 mA or more, 1A or less
24 VAC, 10 mA or more, 1 A or less (non-conductive load)
C2
CN514
CTR1
CTR2
CTR3
K1,K2,K3
L1,L2,L3
OUTPUT1
OUTPUT2
OUTPUT3
PJ20
PS
TB1
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Outdoor unit
Outdoor unit
interface PCB
C2
SW16
CN514
ON
OFF
1 2 3 4
Model featuring three
compressors
1 2 3
OUTPUT1 OUTPUT2 OUTPUT3
Connection cable 2
Interface-side connector (green)
Elapsed operation counter 1
Elapsed operation counter 2
Elapsed operation counter 3
Relay
Operation indication lamp
Compressor 1 in-operation output terminal
Compressor 2 in-operation output terminal
Compressor 3 in-operation output terminal
Optional P.C. board-side connector
Power supply unit
Terminal block
manuals search engine
Locally procured
Optional PCB
TB1
CTR1
1
K1
OUTPUT1
2
CTR2
3
PJ20 K2
OUTPUT2
4
CTR3
5
K3
OUTPUT3
6
Shield
wire
Model featuring
two compressors
1 2
OUTPUT1
116
(See "NOTE")
L1 PS
L2 PS
L3 PS
OUTPUT2