Installation Manual

En-4
3.2.1. Start/stop input setting
• YoucancontrolairconditionerON/OFFoperationby
external input.
SIGNAL SPECIFICATION
• Novoltage
• ON/OFFcontinuoussignal
• Contactcapacity:DC12V10mA
Input signal
On
CN102
(Input)
Remote controller
Indoor
unit
Off
Operation
Stop
On
Setting example
1
2
3
Ch1
Field supply
Indoor
unit
CN102
(White)
+
–
ConnectionofNo.2wireisnotrequired.
3.2.2. Operation status setting
• YoucandisplayairconditionerON/OFFoperationby
external output.
SIGNAL SPECIFICATION
• Novoltagecontact.
• Contactcapacity:Max.DC24V10mAto1Aorless
Output signal
2
1
Operation
Stop
Indoor
unit
SHORT
OPEN
CN103
(Output)
Setting example
2
1
Indoor
unit
CN103
(WHITE)
+
Operation
indicator
Field supply
Ic
Vc
–
3.2.3. Fan linked output setting
• Youcancontrolsubfanbysynchronizationwithfan
operation of indoor unit.
Output signal
1
2
Operation
Stop
Indoor
unit fan
12 V
0 V
CN6
(Output)
Setting example
1
2
Indoor
unit
CN6
(GREEN)
–
+
Power
Field supplied
Fan, other
Fuse
3.2.4. Auxiliary heater output setting
(Only duct type air conditioner)
• Youcancontrolelectricalheater(booster)by
synchronization with heating operation.
• Whentemperatureis-10to-3degreesfromsetpoint,
external electrical heater is ON.
• Whentemperatureis-1degreefromsetpoint,external
electrical heater stops.
JUMPER WIRE (INDOOR UNIT)
• Thisisusedtocontinueindoorunitfanoperationfor
1 minute after thermo OFF in heating mode.
• 1minutedelaycontrolsetbycuttingJM3onPCB.
Output signal
1
2
Operation
Stop
Indoor
unit
Heating
12 V
0 V
CN10
(Output)
Operation
Stop
Indoor
unit fan
1 min
Setting example
1
2
Indoor
unit
CN10
(ORANGE)
–
+
Power
Field supplied
External Heater, other
Fuse
CAUTION
 Pleaselocateexternalaheaterbetweentheindoorunit
and the ductwork.
Pleasebesuretousedelaycontrolofafan.
Supply air
External
Heater
Indoor
unit
Return air
4. CONNECTING TO EXTERNAL
DEVICE
• Connectthetipofthewiretotheexternalequipment.
• Ifnecessary,extenditwithlocallyprocuredwire.
• Ensurethattheconnectingpartisinsulatedforprotection.
Wire
Insulation
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