Heat pump prohibition control
Perform heating by external heater only. Indoor unit is continuous thermostat off.
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”.
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
Off
On
Tr-Ts
Tr-Ts (=Thon) ≤ -0.9°F (-0.5°C)
Tr-Ts ≥ 0.9°F
(0.5°C)
•
Operation status
On
0.9°F (0.5°C)
-0.9°F (-0.5°C)
On
12 V
On
Off
Off
0 V
Off
Heating operation
Heater
Fan
Air conditioner
Room temperature
Set temp.
3 min or more
1 min
1 min
On
Off
DIP-SW101-3 On
DIP-SW101-3 Off
NOTE:
In following operations, compressor will be on.
• Other than heating
• Test run
- 37 -
6-4. Details of function
6. External input and output
DUCT TYPE
AMUG24-48LMAS
DUCT TYPE
AMUG24-48LMAS