MXZ-SM42NAMHZ Service Manual

112
OCH789
L1: Error display lamp
L
2: Compressor operation lamp
X, Y: Relay (coil rating: ≤ 0.9 W, 12 V DC)
SW1
SW2
ON
Heating
Validity of SW1
OFF
Cooling
Invalidity of SW1
SW1: Switch
SW2: Switch
X, Y: Relay (contact rating: ≥ 0.1 A, 15 V DC)
(min. applicable load: ≤ 1 mA)
SW1: Switch
SW2: Switch
X, Y: Relay (contact rating: ≥ 0.1 A, 15 V DC)
(min. applicabl load: ≤ 1 mA)
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.
Silent mode
Silent mode operation
Outdoor controller board DIP SW9-2 SW1 SW2 Function
Demand control
OFF
ON
ON
OFF
ON
—
OFF
OFF
ON
OFF
ON
ON
100%
75%
50%
0%
(Normal)
(Stop)
Distant control board
Relay circuit
External output adapter
(PAC-SA88HA-E)
Outdoor unit control board
Remote control panel
Relay circuit
External input adapter
(PAC-SC36NA-E)
Outdoor unit control board
Relay power supply
Procure locally
Max. 33 ft [10 m]
Remote control panel
Relay circuit
External input adapter
(PAC-SC36NA-E)
Outdoor unit control board
Relay power supply
Procure locally
Max. 33 ft [10 m]
Lamp power supply
Procure locally
Max. 33 ft [10 m]
CN51
X
5
4
3
Y
CN3N
X
Y
SW1
SW2
1
2
3
CN3D
X
Y
SW1
SW2
1
2
3
~
~
Y
X
Y
X
~
Y
X
L1
L2
8-6. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR
State (CN51)
Auto change over (CN3N)
Silent Mode/Demand Control (CN3D)