4. Low water pressure start up function:
These unit requires 2 - 2.9 PSI to activate, making it suitable for users with low water
pressure, or those who are using it to supply hot water to upper floors. Please note
that the water flow and water pressure are not the same. Sufficient flow is always
required to keep the overheat safety sensor from shutting the unit off.
5. Anti - freezing protection:
When the temperature is below freezing, remove the water discharge valve to
discharge accumulated standing water inside the internal pipes. This will keep the
unit from freezing. Freeze damage to the unit is NOT covered under the warranty.
6. Anti-dry combustion protection:
Should dry combustion occur for any reason, the gas supply will be immediately
and automatically shut off.
7. Over-pressure protection:
When water pressure is over 145 PSI, the unit will automatically relieve the excessive
pressure to avoid damage to its internal components.
PRECAUTIONS
1. The water heater must be installed in a well-ventilated area. An exhaust pipe of
double walled construction for category 1 heating appliances, i.e. B-vent or Z-vent if
excessive condensation is a concern must be installed to discharge the exhaust from
the flame (venting supplies can be located at most home improvement stores in the
water heater section). During operation, the water heater consumes a lot of oxygen,
so the exhaust pipe and outlet hole must be properly installed. Refer to exhaust vent
pipe section for details.
Failure to properly install the room intake and exhaust vent pipe will cause oxygen
depletion in the area around the water heater, which can cause incomplete
combustion. Carbon monoxide poisoning, death and serious accidents can occur
due to incomplete combustion. ALL USERS OF GAS APPLIANCES OF ANY TYPE
SHOULD EMPLOY THE USE OF A CARBON MONOXIDE DETECTOR. ALL GAS
APPLIANCES SHOULD BE INSTALLED BY A LICENSED PLUMBER AND COMPLY
WITH ALL LOCAL BUILDING CODES.
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