Fujitsu ARU18RGLX Design & Technical Manual page 53

 Installation configuration of individual connection
External heating device is installed individually. (No use of indoor unit fan)
WARNING
• DIP Switch 101-3 must be in the ON position when ducted electric heat application is be-
ing used.
Operation
DIP-SW101-3
Indoor unit fan
setting for
external heater
Heater off
DIP-SW101-3
Indoor unit fan
setting for
external heater
• Design and install external heater appropriately with considering its protection.
• 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.
8-4. Details of function
Example of heating device:
- Floor heating device
On • Heater is off as shown in following diagram of heating
temperature.
• Other than heating mode
• Error occurred
Enabled
• Forced thermostat off
• Fan stop protection
Off • Heater is off as shown in following diagram of heating
temperature.
• Other than heating mode
Disabled
• Error occurred
• Forced thermostat off
External
heater
Supply air
On/Off
Condition
Indoor
unit
Return air
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8. External input and output