Fujitsu AOUG48LMAS1 Design & Technical Manual


Auxiliary heater control by outdoor temperature 3
This control selects heat pump or external heater according to the outdoor temperature. Even when
outdoor temperature is high, the heating is performed by using both of heat pump and external
heater.
Operation Condition
Heater on Heater is on as shown in following diagram of heating temperature.
Heater off
DIP-SW101-3 On • Heater is off as shown in following diagram of heating
temperature.
• Other than heating mode
• Error occurred
• Forced thermostat off
• Fan stop protection
Indoor unit fan
setting for
external heater
Enabled
DIP-SW101-3 Off • Heater is off as shown in following diagram of heating
temperature.
• Other than heating mode
• Error occurred
• Forced thermostat off
Indoor unit fan
setting for
external heater
Disabled
• Temperature of heater on (Thon): Adjustable by function number 62 (Operating temperature
switching of external heaters).
• All control temperatures will shift by adjusting “Thon”.
• Outdoor temperature zone boundary B: Adjustable by function setting number 67.
• External heater output
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
Tr-Ts
Off
On
*
Tr-Ts ≥ 0.9°F
(0.5°C)
Tr-Ts (=Thon) < -0.9°F (-0.5°C)
*: When room temperature stays in this zone for a specific time, auxiliary heater is turned on. For
details, refer to function number 71.
• Outdoor temperature zone
B: 42.8°F (6°C)*
B + 3.6°F (2°C): 46.4°F (8°C)
Outdoor temp.
Combination zone
(Heat pump + Heater)
Heat pump only zone
(Heat pump)
*: Adjustable by function setting 67
- 42 -
6-4. Details of function 6. External input and output
DUCT TYPE AMUG24-48LMAS DUCT TYPE AMUG24-48LMAS

Fujitsu AOUG48LMAS1 Specifications

General

Brand	Fujitsu
Model	AOUG48LMAS1
Category	Air Conditioner
Language	English