Fujitsu ACUH09LUAS1 Design & Technical Manual


Auxiliary heater control 1
Operation Condition
Heater on Heater is on as shown in following diagram of heating temperature.
Heater off
• Heater is off as shown in following diagram of heating temperature.
• Other than heating mode
• Error occurred
• Forced thermostat off
• Fan stop protection
• Temperature of heater on (Thon): Adjustable by function number 62 (Operating temperature
switching of external heaters).
• All control temperatures will shift by adjusting “Thon”.
Tr-Ts ≥ -1.8°F
(-1°C)
Tr-Ts
Tr-Ts (=Thon) < -5.4°F (-3°C)
Tr-Ts < -21.6°F
(-12°C)
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
Off
Off
On
*
A
Tr-Ts ≥ -18°F
(-10°C)
*: When room temperature stays in this zone for a specific time, auxiliary heater is turned on. For
details, refer to function number 71.
Example: When set temperature (Ts) is 72°F (22°C) (Factory setting),
• and room temperature (Tr) increases above 53.6°F (12°C), signal output is on.
• and room temperature (Tr) increases above 69.8°F (21°C), signal output is off.
• and room temperature (Tr) decreases below 66.2°F (19°C), signal output is on.
• and room temperature (Tr) decreases below 50°F (10°C), signal output is off.

Auxiliary heater control 2
Control that excludes “A” from "Auxiliary heater control 1" on page 40.
Operation Condition
Heater on Heater is on as shown in following diagram of heating temperature.
Heater off
• Heater is off as shown in following diagram of heating temperature.
• Other than heating mode
• Error occurred
• Forced thermostat off
• Fan stop protection
• Temperature of heater on (Thon): Adjustable by function number 62 (Operating temperature
switching of external heaters).
• All control temperatures will shift by adjusting “Thon”.
Tr-Ts
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
Off
On
*
Tr-Ts ≥ -1.8°F
(-1°C)
Tr-Ts (=Thon) < -5.4°F (-3°C)
*: When room temperature stays in this zone for a specific time, auxiliary heater is turned on. For
details, refer to function number 71.
- 40 -
8-4. Details of function 8. External input and output
CASSETTE TYPE ADUH09-18LUAS1 CASSETTE TYPE ADUH09-18LUAS1

Fujitsu ACUH09LUAS1 Specifications

General

Brand	Fujitsu
Model	ACUH09LUAS1
Category	Air Conditioner
Language	English