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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.
(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).
Normal Combustion
Mode
Save Mode 1
Thermo.
OFF
Less than
10 minutes
Less than
10 minutes
Less than
10 minutes
Thermo.
OFF
Thermo.
OFF
Thermo.
OFF
Save Mode 2
Stop combustion
Normal Combustion
Mode
Save Mode 1
Save Mode 2
Thermo.
OFF
Thermo.
OFF
10 minutes 10 minutes 10 minutesLess than
10 minutes