Outdoor Unit Input/Output Connector; State (Cn51); Auto Change Over (Cn3N); Silent Mode / Demand Control (Cn3D) - Mitsubishi Electric PUMY-P200YKM Technical & Service Manual

8-6. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR

State (CN51)

A B
X
L X
1
Y
~ L
Y
2
E
F

Auto change over (CN3N)

A B
SW1
~ X
E
X
SW2
Y
Y
F

Silent Mode / Demand Control (CN3D)

A B
SW1
~ X
E
X
SW2
Y
Y
F
The silent mode and the demand control are selected by switching the DIP switch 2-6 on outdoor controller board.
It is possible to set it to the following power consumption (compared with ratings) by setting SW1, 2.
Outdoor controller board DIP SW2-6 SW1 SW2
Silent mode
OFF
Demand control ON
OCH575
A Distant control board
C
B Relay circuit
D
C External output adapter (PAC-SA88HA-E)
CN51
D Outdoor unit control board
5
5
4
3
1
L : Error display lamp
1
L : Compressor operation lamp
2
X, Y: Relay (Coil standard of 0.9W or less for 12 V DC)
X, Y: Relay (1 mA DC)
G
C
A Remote control panel
D
B Relay circuit
C External input adapter (PAC-SC36NA-E)
CN3N
1
D Outdoor unit control board
1
2
3
3
SW1
SW2
G
C
A Remote control panel
D
B Relay circuit
CN3D
C External input adapter (PAC-SC36NA-E)
1
1
D Outdoor unit control board
2
3
3
G
ON — Silent mode operation
OFF OFF
ON OFF
ON ON
OFF ON
95
ON OFF
Heating Cooling
Validity of SW1 Invalidity of SW1
Function
100% (Normal)
75%
50%
0% (Stop)
E Lamp power supply
F Procure locally
G Max. 10m
E Relay power supply
F Procure locally
G Max. 10 m
E Relay power supply
F Procure locally
G Max. 10 m