8-3-3. Combustion Saving Function
After Thermo. OFF occurs, shifts to Continuous Combustion Mode, Save Mode 1, or Save Mode 2, according to the load inside the room.
<Normal Combustion Mode>
Performs combustion which is proportionally controlled by setting the maximum amount of gas equivalent to the amount of rated combustion.
<Save Mode 1>
Performs combustion which is proportionally controlled by setting the maximum amount of gas to about 70% of the rated amount of combustion.
<Save Mode 2>
Performs continuous combustion by setting the amount of gas equivalent to the minimum amount of com- bustion.
(1) Save Function
If Thermo. ON lasts less than 10 minutes under Normal Combustion Mode subsequent to Thermo. OFF, Save Mode 1 is automatically selected for the following Thermo. ON, and then Save Mode 2 is selected if Save Mode 1 lasts less than 10 minutes.
Thermo. | Less than | Thermo. | Less than | Thermo. | Less than | Thermo. |
OFF | 10 minutes | OFF | 10 minutes | OFF | 10 minutes | OFF |
Normal Combustion
Mode
Save Mode 1
Save Mode 2
Stop combustion
(2) Reset Function
When combustion in Save Mode 1 continues past 10 minutes, it goes back to Normal Combustion Mode (Save Mode 2 to Save Mode 1). However, if Thermo. OFF occurs again within 10 minutes under Normal Combustion Mode, Save Mode 1 is selected at the next Thermo. ON (Save Mode 1 to Save Mode 2).
Thermo. 10 minutes | 10 minutes | Less than | Thermo. 10 minutes |
OFF |
| 10 minutes | OFF |
Normal Combustion Mode
Save Mode 1
Save Mode 2
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