Special Functions - Mitsubishi Electric City Multi PUMY-P250YBM Installation Manual

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
~ X
E
X
SW2
Y
Y
en
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 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
Demand control ON
• External static pressure mode (30 Pa)
The external static pressure mode (30 Pa) is enabled by switching the DIP switch SW6-5 on the outdoor controller board to ON.
However, the silent mode cannot be used when this mode is enabled.
Outdoor controller board DIP SW6-5
External static pressure mode (30 Pa)
29
C
D
X
CN51
Y
5
5
4
3
1
G
C
D
CN3N
1
1
2
3
3
G
C
D
CN3D
1
1
2
3
3
G
SW1
OFF
ON
OFF
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 rating: [ 0.9 W, 12 V DC)
A Remote control panel
B Relay circuit
C External input adapter (PAC-SC36NA-E)
D Outdoor unit control board
SW1: Switch
SW2: Switch
(
contact rating
X, Y: Relay
min. applicable load: [ 1 mA
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
SW1: Switch
SW2: Switch
(
contact rating
X, Y: Relay
min. applicable load: [ 1 mA
Function
SW2
cooling
OFF Normal Normal
OFF Silent mode Silent mode
ON Super silent mode 1 Silent mode
ON Super silent mode 2 Silent mode
OFF 100 % (Normal)
OFF 75 %
ON 50 %
ON 0 % (Stop)
ON
Enabled Disabled
E Lamp power supply
F Procure locally
G Max. 10 m
E Relay power supply
F Procure locally
G Max. 10 m
)
: ] 0.1 A, 15 V DC
OFF
Cooling
Invalidity of SW1
E Relay power supply
F Procure locally
G Max. 10 m
)
: ] 0.1 A, 15 V DC
heating
OFF