Fujitsu Airstage J-II Series Design & Technical Manual page 856

„ HEAT PUMP PROHIBITION CONTROL
„
Perform heating by external heater only. VRF indoor unit is Continuous thermostat OFF.
Operation
Heater ON
DIP-SW2-3 ON
Indoor unit fan
setting for external
heater: Enable
Heater
OFF
DIP-SW2-3 OFF
Indoor unit fan
setting for external
heater: Disable
▪ Temperature of heater ON (Thon) ... Adjustable by Function setting No.62 (Operating
temperature switching of external heaters).
▪ All control temperatures will shift by adjusting "Thon".
OFF
Tr-Ts ≥ 0.9°F
(0.5°C)
ON
▪ Heater ON as shown in diagram of heating temperature
▪ Heater OFF as shown in diagram of heating temperature
▪ Other than Heating mode
▪ Error occurred
▪ Forced thermostat off
▪ Fan stop protection
▪ Heater OFF as shown in diagram of heating temperature
▪ Other than Heating mode
▪ Error occurred
▪ Forced thermostat off
Tr-Ts
Tr-Ts (=Thon) ≤ -0.9°F
(-0.5°C)
- (08 - 36) -
Condition
Tr: Room temperature
Ts: Set temperature
Thon: Heater ON temperature