62
9-6. Outdoor unit input/output connector
●
State (CN51)
●
Comp ON/OFF (CN3S)
●
Auto change over (CN3D)
CN51
CN3S
X
5
4
3
Distant control
board
External output
adapter
Outdoor unit
control board
Relay circuit
Maximum cable
length is 10m
Lamp power
Y
X
X
Y
L
1
L
2
L
1
: Error display lamp
L
2
: Compressor operation lamp
X, Y : Relay (Coil standard of 0.9W or less for DC 12V)
Preparations
in the field
1
2
External output
adapter
Outdoor unit
control board
Maximum cable
length is 10m
X : Comp ON/OFF
ON : Comp OFF
OFF : Normal
Preparations
in the field
CN3D
X
Y
X
Y
SW1
SW2
1
2
3
Distant control
board
External output
adapter
Outdoor unit
control board
Relay circuit
Maximum cable
length is 10m
Lamp power
X, Y : Relay (DC1mA)
✽
For the system utilizing R-Converter units (PAC-SF29LB), the following systems are not available.
Group operation system, centralized controller, group remote controller, etc.
(See the installation manul of R-Converter units.)
✽
For the system utilizing R-Converter units (PAC-SF29LB), the following functions are not available.
Test run (SW3), auto change over, auto change over (external signal).
(See the installation manul of R-Converter units.)
Preparations
in the field
SW1
SW2
PUMY-P125YMA
PUMY-P125VMA
PUMY-P125YMA
1
PUMY-P125VMA
PUMY-P125YMA
PUMY-P125YMA
1
ON
Cooling
Heating
Validity of SW1
OFF
Heating
Cooling
Invalidity of SW1
OC272A--3.qxp 03.9.4 11:10 AM Page 62
Summary of Contents for PUMY-P125VMA
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