Special Functions - Mitsubishi Electric MXZ-8C48NA2 Manuel D'installation

8. Special Functions

8.1. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR
• State (CN51)
A B
X
L
1
Y
~ L
2
E
F
• Auto change over (CN3N)
A B
SW1
E
~
X
SW2
Y
F
• Silent Mode / Demand Control (CN3D)
A B
SW1
E
~
X
SW2
Y
F
The silent mode and the demand control are selected by switching the DIP switch 9-2 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 SW9-2
Silent mode OFF
ON
Demand control
en
19
C
D
X
CN51
Y
5
5
4
3
1
G
C
D
X CN3N
1
1
2
3
Y
3
G
C
D
CN3D
X
1
1
2
3
Y
3
G
SW1
ON
OFF
ON
ON
OFF
A Distant control board
B Relay circuit
C External output adapter (PAC-SA88HA-E)
D Outdoor unit control board
L1: Error display lamp
L2: Compressor operation lamp
X, Y: Relay (Coil standard of 0.9W or less for DC 12V)
X, Y: Relay (DC1mA)
A Remote control panel
B Relay circuit
C External input adapter (PAC-SC36NA-E)
D Outdoor unit control board
ON
SW1 Heating
SW2 Validity of SW1
A Remote control panel
B Relay circuit
C External input adapter (PAC-SC36NA-E)
D Outdoor unit control board
SW2 Function
– Silent mode operation
100% (Normal)
OFF
OFF 75%
ON
50%
ON
0% (Stop)
E Lamp power supply
F Procure locally
G Max. 10 m (33 ft)
E Relay power supply
F Procure locally
G Max. 10 m (33 ft)
OFF
Cooling
Invalidity of SW1
E Relay power supply
F Procure locally
G Max. 10 m (33 ft)