Installation configuration of individual connection
• In-line connection
Connecting the external heating device in between the indoor unit and the outlet.
External heating device uses the indoor unit fan.
Example of heating device:
- Hot-water coil
- Electric heater
On / Off
Indoor unit fan setting for external heater (DIP-SW 2-3: On)
–
Activate fan control for external heater.
– Indoor unit fan stop 1 minute later after the EEV is off.
On
Off
O
n
Off
EEV
Indoor unit fan
12 V
0 V
CNB01 (1-5)
output
1 min
• Individual connection
Example of heating device:
-
Floor heating device
On/Off
WARNING
•
For duct and cassette types, always set “indoor unit fan setting for external heater” when auxil-
iary heater is installed.
• Design and install external heater appropriately with considering its protection.
For wall mounted type, combination use with an external heater as shown below is prohibited.
External
heater
I
ndoor
unit
Supply air Return air
• Inappropriate designing and installation of external heater may cause a fire by emitted heat from
the external heater.
•
Fujitsu General Ltd. is not responsible for inappropriate designing or installation of external
heating device.
3-3. External output - (08-38) - 3. Indoor unit
EXTERNAL INPUT
AND OUTPUT
EXTERNAL INPUT
AND OUTPUT
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