Outdoor Unit Input/Output Connector; State (Cn51); Auto Change Over (Cn3N) - Mitsubishi Electric City Multi PUMY-P36NHMU Technical & Service Manual

9-6. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR

State (CN51)

L
1
~ L
2

Auto change over (CN3N)

SW1
~
SW2
Silent Mode / Demand Control (CN3D)
SW1
~
SW2
The silent mode and the demand control are selected by switching
the Dip switch 8-1 on outdoor controller board.
It is possible to set it to the following power sonsumption (compared with ratings) by
setting SW1,2
Silent mode
Demand control
X
X
Y
Y
5
4
3
X
1
X
2
3
Y
Y
X
1
X
2
3
Y
Y
Outdoor controller board DIP SW8-1 SW1 SW2
OFF
ON
Distant control board
Relay circuit
External output adapter (PAC-SA88HA-E)
CN51
Outdoor unit control board
L : Error display lamp
1
L : Compressor operation lamp
2
X, Y : Relay (Coil standard of 0.9W or less for DC 12V)
X, Y : Relay (DC1mA)
Remote control panel
Relay circuit
CN3N External input adapter (PAC-SC36NA)
Outdoor unit control board
ON
SW1 Heating
Validity of SW1
SW2
Remote control panel
Relay circuit
CN3D
External input adapter (PAC-SC36NA)
Outdoor unit control board
ON
SW1 Heating
Validity of SW1
SW2
Function
ON — Silent mode operation
OFF OFF 100% (Normal)
ON OFF 75%
ON ON 50%
OFF ON 0% (Stop)
58
Lamp power supply
Procure locally
Max. 10m[33ft]
Relay power supply
Procure locally
Max. 10m[33ft]
OFF
Cooling
Invalidity of SW1
Relay power supply
Procure locally
Max. 10m[33ft]
OFF
Cooling
Invalidity of SW1