Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 795

 Heat pump prohibition control
Perform heating by external heater only. Indoor unit is continuous thermostat off.
Operation
Heater on
DIP switch 2-3
Indoor unit fan
setting for
external heater
Heater off
DIP switch 2-3
Indoor unit fan
setting for
external heater
• Temperature of heater on (Thon): Adjustable by function number 62 for indoor unit (Operating
temperature switching of external heaters).
• All control temperatures will shift by adjusting "Thon".
Tr-Ts ≥ 0.9°F
(0.5°C)
• Operation status
Heating operation
Room temperature
Air conditioner
Heater
Fan
3-3. External output
Heater is on as shown in following diagram of heating
temperature.
On •
•
•
Enabled
•
•
Off •
•
Disabled
•
•
Tr-Ts
Off
Tr-Ts (=Thon) ≤ -0.9°F (-0.5°C)
On
On
Off
0.9°F (0.5°C)
Set temp.
-0.9°F (-0.5°C)
On
Off
12 V
0 V
On
DIP-SW2-3 On
Off
On
DIP-SW2-3 Off
Off
Condition
Heater is off as shown in following diagram of heating
temperature.
Other than heating mode
Error occurred
Forced thermostat off
Fan stop protection
Heater is off as shown in following diagram of heating
temperature.
Other than heating mode
Error occurred
Forced thermostat off
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
3 min or more
1 min
- (08-41) -
1 min
3. Indoor unit