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How To Use The Front Control Interface
To switch the water heater ON:
From OFF condition Press the Power Button.
When running the water by opening the water tap, the water heater will start the burner automatically
and the Digital Monitor will show the Burner ON indicator.
To switch the water heater OFF:
Press the Power Button.
To adjust water temperature:
1.
2.
3.
4.
The temperature selected will be indicated on the Digital Monitor.
The ON Indicator will light up.
The temperature selected on the Digital Monitor will go out.
The ON Indicator will turn off.
Press the "HOTTER" or "COOLER" Temperature Setting Button with unit ON. (Temperature setting is only
adjustable when the burner is not in use.)
The maximum water temperature setting can be limited by DIP switches. This manual setting overrides
adjustable temperature settings on the front panel. Please call Grand Hall USA for DIP switch setting
instructions if needed.
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Water Temperature Time to Produce a Serious Burn
120°F
More than 5 minutes
125°F
1.5 to 2 minutes
130°F
About 30 seconds
135°F
About 10 seconds
140°F
Less than 5 seconds
145°F
Less than 3 seconds
150°F
About 1.5 seconds
155°F
About 1 seconds
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Hot water heater temperature over 125°F can cause severe burns instantly or death from scalding.
Children, disabled and elderly are at the highest risk of being scalded.
Feel water temperature before bathing or showering.
Temperature limiting valves are available; please ask a certified professional.
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DANGER
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Burner Indicator:
ON Indicator:
Priority Indicator:
Digital Monitor:
Power Button:
Priority Button:
Temperature Setting Button:
Diagnosis Button:
Indicates when burner is in operation.
Indicates unit is plugged
Indicates which controller
Turns the heater ON or OFF.
Alternates the control of
Used to set water temperature
Enable diagnosis function.
Indicates set water temperature and
in and functional.
is in control of adjusting
temperature selection
water temperature.
between front and remote controller(s).
shows error code in the event of an error.
Burner Indicator:
ON Indicator:
Priority Indicator:
Digital Monitor:
Power Button:
Priority Button:
Temperature Setting Button:
Diagnosis Button:
Indicates when burner is in operation.
Indicates unit is plugged
Indicates which controller
Turns the heater ON or OFF.
Alternates the control of
Used to set water temperature
Enable diagnosis function.
Indicates set water temperature and
in and functional.
is in control of adjusting
temperature selection
water temperature.
between front and remote controller(s).
shows error code in the event of an error.
Per some state laws – water temperature should not be set higher than 120°F.
Please check with your local codes to ensure temperature is properly set.
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CAUTION
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