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”.
Off
On
Tr-Ts ≥ -1°C
Tr-Ts
Tr-Ts (=Thon) < -3°C
Tr-Ts ≥ -10°C
Tr-Ts < -12°C
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
Example: When set temperature (Ts) is 22°C (Factory setting),
• and room temperature (Tr) increases above 12°C, signal output is on.
• and room temperature (Tr) increases above 21°C, signal output is off.
• and room temperature (Tr) decreases below 19°C, signal output is on.
• and room temperature (Tr) decreases below 10°C, signal output is off.
Auxiliary heater control 2
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”.
Off
On
Tr-Ts ≥ -1°C
Tr-Ts
Tr-Ts (=Thon) < -3°C
Tr: Room temperature
Ts: Set temperature
Thon: Heater on temperature
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8-4. Details of function 8. External input and output
WALL MOUNTED
ASTG09-12KMTC
WALL MOUNTED
ASTG09-12KMTC
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