Fujitsu Airstage J-II Series

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AUXILIARY HEATER CONTROL 1

Operation Condition

Heater ON ▪ Heater ON as shown in diagram of heating temperature

Heater OFF

▪ Heater OFF as shown in diagram of heating temperature

▪ Other than Heating mode

▪ 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)

Tr-Ts

Tr-Ts (=Thon) < -5.4°F

(

-3°C)

Tr-Ts ≥ -18°F

(-10°C

）

Tr-Ts < -21.6°F (-12°C)

Tr: Room temperature

Ts: Set temperature

Thon: Heater ON temperature

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.

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AUXILIARY HEATER CONTROL 2

Control that excludes "A" from Auxiliary heater control 1 mentioned above.