Panasonic CZ-64ESMC1U Installation Manual download pdf (Page 6)

 Electrical Wiring

Fig. 2

DC voltage pulse

Photocoupler input

Allowable contact voltage

and current: 24 V, 10 mA

Pulse width: 300 ms or

No-voltage a-contact

static output

Allowable contact voltage

and current: 30 V, 0.5 A

SYSTEM CONTROLLER

DC24V

COM

Digital

Input

When using the T10 cable:

(1) Connect B1, B2 to indoor unit 2P terminal base.

(*No polarity). Wire size is AWG#W18.

(2) Connect B5, B6 to indoor PCB T10 connector using the

accessory 6P connector. (with fuse) (*No polarity)

Total wire length is less than 330 ft. and size is

AWG#W18.

Fig. 3

When using the CRV cable:

(1) Connect B1, B2 to indoor unit 2P terminal base.

(*No polarity). Wire size is AWG#W18.

(2) Connect B5, B6 to indoor PCB CRV connector using the

accessory 2P connector. (*No polarity)

Total wire length is less than 330 ft. and size is

AWG#W18.

Fig. 4

NOTE

Connectors are different depending on the indoor unit PCB.

Select the cable according to the indoor unit PCB.

Use the T10 cable.

Use the CRV cable.

T10 connectorT10 cable

CRV connectorCRV cable

Terminals for remote monitoring

A1:

Input for turning on air conditioners concurrently.

A2:

Input for turning off air conditioners concurrently.

A3:

Common input for turning air conditioners on or off.

A4:

ON operation state indicator output.

A5:

Alarm indicator output.

A6:

Common indicator output.

Basic wiring

B1:

Inter-unit control wiring. (Low voltage)

B2:

To indoor unit 2P terminal base (U1, U2)

*No polarity

B3:

Auxiliary of inter-unit control wiring

B4:

Not be used

B5:

Power supply: DC 12 V *No polarity

B6:

To CRV connector or T10 connector on indoor PCB

CZ-64ESMC1U_eng.indd 6

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Panasonic CZ-64ESMC1U Installation Manual Page 6

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