5
Before Operation
1. Check the Gas Type (NG/LP)
When using the unit for the first time, check if gas
type matches with the gas type of the Water Heater.
(Check whether the gas type which is supplied is NG
or LP and also check the Water Heater gas type.)
The gas type is indicated on the rating plate on side
of the Water Heater.
2. Check the Power (120V 60Hz)
Check whether the appliance is connected properly.
3. Check the Cold Water Inlet valve
Open the appliance water inlet valve. The appliance
will not ignite when insufficient water or no water is
present at the cold water inlet.
4. Check the Gas valve
Check if the manual gas shut-off valve to the appli-
ance is opened.
5. Check the Area Around the Appliance
Remove any combustible or flammable materials and
do not place any wet laundry on the exhaust vent.
Operation
1. Check for Gas leak
Check for gas leak at the gas connection with soapy
water.
2. Check Ventilation
Make sure that there is sufficient inflow and outflow of
ventilation air while using the unit.
If the ventilation is improper, then the combustion
condition deteriorates inside the appliance and it may
cause shortened life of the appliance.
3. Burn Warning
Be careful not to burn yourself by the flue or pipes.
They are getting extremely hot during operation.
4. Combustibles Warning
Do not use the appliance for any other purpose than
for heating hot water.
Do not store combustibles or flammable material
such as gasoline near the appliance.
Method of Operation
Summary of Contents for Marquis TWH180
Page 24: ...22 Error Codes 1 Flame Detection ...
Page 25: ...23 Error Codes 2 Gas Detection 3 Sensing air pressure ...
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