Auxiliary heater control by outdoor temperature 1
This control selects heat pump or external heater according to the outdoor temperature. When out-
door temperature is high, the heating is performed by using heat pump only.
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
•
Heat pump only zone
• 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 A and B: Adjustable individually by function setting number
66 and 67.
•
External heater output
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
Off
On
Tr-Ts ≥ 0.9°F
(0.5°C)
Tr-Ts
Tr-Ts (=Thon) ≤
-0.9°F
(
-0.5°C)
•
Outdoor temperature zone
Heat pump only zone
(Heat pump)
Combination zone
(Heat pump + Heater)
Heat pump prohibition zone
(Heater)
B: 42.8°F (6°C)*
A: -4°F (-20°C)*
B + 3.6°F (2°C): 46.4°F (8°C)
A + 3.6°F ( 2°C): -0.4°F (-18°C)
Outdoor temp.
*: Adjustable by function setting 66 and 67
2-4. Details of function
- (05-23) -
2. External input and output
FIELD
WORKING
FIELD
WORKING
Содержание AOUG09LMAS1
Страница 4: ......
Страница 5: ...1 GENERAL INFORMATION 2019 12 20 SR_CH01_AS023EF_01 ...
Страница 13: ...2 TECHNICAL DATA AND PARTS LIST 2020 01 28 SR_CH02_AS023EF_01 ...
Страница 33: ...3 TROUBLESHOOTING 2020 01 30 SR_CH03_AS023EF_02 ...
Страница 77: ...4 CONTROL AND FUNCTIONS 2020 03 25 SR_CH04_AS023EF_02 ...
Страница 107: ...5 FILED WORKING 2020 02 03 SR_CH05_AS023EF_01 ...