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Mitsubishi Electric PURY-WP200 Service Manual page 36

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[ II Restrictions ]
Example of wiring connection
(1) CN51
Distant control
Relay circuit
board
L
1
L
2
Preparations
in the field
L1 : Outdoor unit error display lamp
L2 : Compressor operation lamp (compressor running state)
X, Y : Relay (coil =<0.9W : DC12V)
1. Optional part : PAC-SC37SA-E or field supply.
(3) CN3N
Relay circuit
Adapter 2
X
Y
Preparations
Maximum cable
in the field
length is 10m
(4) CN3D
Adapter 2
Relay circuit
X
Y
Preparations
in the field
Maximum cable
length is 10m
X : Low-noise mode
Y : Compressor ON/OFF
X,Y : Relay Contact rating voltage >= DC15V
Contact rating current >= 0.1A
Minimum appicable load =< 1mA at DC
2. Optional part : PAC-SC36NA-E or field supply.
HWE1113B
Adapter 1
Outdoor unit
control board
X
Y
CN51
X
Y
5
4
3
Maximum cable
length is 10m
Outdoor unit
control board
CN3N
1
OFF
2
Y
ON
3
X : Cooling / Heating
Y : Validity / Invalidity of X
X,Y : Relay
2. Optional part : PAC-SC36NA-E or field supply.
Outdoor unit
control board
CN3D
1
2
3
(2) CN3S
Relay circuit
Adapter 2
X
Preparations
in the field
Maximum cable
length is 10m
X : Relay
Contact rating voltage >= DC15V
Contact rating current >= 0.1A
Minimum applicable load =< 1mA at DC
Snow sensor : The outdoor fan runs when X is closed
in stop mode or thermostat mode.
2. Optional part : PAC-SC36NA-E or field supply.
X
OFF
ON
Normal
Cooling
Heating
Contact rating voltage >= DC15V
Contact rating current >= 0.1A
Minimum applicable load =< 1mA at DC
Relay circuit
X
Preparations
in the field
Maximum cable
length is 10m
X : Low-noise mode
X : Relay
Contact rating voltage >= DC15V
Contact rating current >= 0.1A
Minimum applicable load =< 1mA at DC
2. Optional part : PAC-SC36NA-E or field supply.
Low-noise mode : The noise level is reduced by controlling the maximum
fan frequency and maximum compressor frequency.
- 27 -
Outdoor unit
control board
CN3S
1
2
3
Outdoor unit
Adapter 2
control board
CN3D
1
2
3
GB
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