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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 ≥ 0.5°C
Tr-Ts
Tr-Ts (=Thon) ≤ -0.5°C
•
Outdoor temperature zone
Heat pump only zone
(Heat pump)
Combination zone
(Heat pump + Heater)
Heat pump prohibition zone
(Heater)
B: 6°C*
A: -20°C*
B + 2°C: 8°C
A + 2°C: -18°C
Outdoor temp.
*: Adjustable by function setting 66 and 67
3-4. Details of function
- (05-28) -
3. External input and output (For indoor unit)
FIELD
WORKING
FIELD
WORKING
Содержание AOTG30KMTC
Страница 4: ......
Страница 5: ...1 GENERAL INFORMATION 2019 06 27 SR_CH01_AS004EF_01 ...
Страница 13: ...2 TECHNICAL DATA AND PARTS LIST 2020 05 12 SR_CH02_AS004EF_05 ...
Страница 35: ...3 TROUBLESHOOTING 2020 05 08 SR_CH03_AS004EF_02 ...
Страница 38: ......
Страница 128: ...6 2 Outdoor unit 03 90 6 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...
Страница 129: ...4 CONTROL AND FUNCTIONS 2020 05 08 SR_CH04_AS004EF_02 ...
Страница 132: ......
Страница 163: ...5 FILED WORKING 2019 07 24 SR_CH05_AS004EF_01 ...