Fujitsu Airstage J-II Series Design & Technical Manual page 855

„ AUXILIARY HEATER CONTROL 1
„
Operation
Heater ON ▪ Heater ON as shown in diagram of heating temperature
▪ Heater OFF as shown in diagram of heating temperature
▪ Other than Heating mode
Heater OFF ▪ Error occurred
▪ Forced thermostat off
▪ Fan stop protection
▪ 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 ≥ -1.8°F
(-1°C)
ON
Tr-Ts ≥ -18°F
(-10°C）
OFF
A
Example. When Set Temperature (Ts) is 72°F (22°C) *Factory setting
▪ and Room Temperature (Tr) increase above 53.6°F (12°C), signal output is on.
▪ and Room Temperature (Tr) increase above 69.8°F (21°C), signal output is off.
▪ and Room Temperature (Tr) decrease below 66.2°F (19°C), signal output is on.
▪and Room Temperature (Tr) decrease below 50°F (10°C), signal output is off.
„ AUXILIARY HEATER CONTROL 2
„
Control that excludes "A" from Auxiliary heater control 1 mentioned above.
Operation
Heater ON ▪ Heater ON as shown in diagram of heating temperature
▪ Heater OFF as shown in diagram of heating temperature
▪ Other than Heating mode
Heater OFF ▪ Error occurred
▪ Forced thermostat off
▪ Fan stop protection
▪ 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 ≥ -1.8°F
(-1°C)
ON
Tr-Ts
Tr-Ts (=Thon) < -5.4°F (-3°C)
Tr-Ts < -21.6°F (-12°C)
Tr-Ts
Tr-Ts (=Thon) < -5.4°F (-3°C)
- (08 - 35) -
Condition
Tr: Room temperature
Ts: Set temperature
Thon: Heater ON temperature
Condition
Tr: Room temperature
Ts: Set temperature
Thon: Heater ON temperature