18
LP- 325 REV. 3.3.15
UNCRATING APPLIANCE
– Any claims for damage or shortage in shipment must be filed immediately against the transportation
company by the consignee. Remove all sides of the shipping crate to allow the appliance to be lifted into its installation location.
COLD WEATHER HANDLING
– If the appliance has been stored in a very cold location (BELOW 0
o
F) before installation, handle with
care until the plastic components come to room temperature.
PART 4 – PIPING
Failure to follow the instructions in this section WILL VOID the warranty and may result in property damage, serious injury, or death.
Plumbing of this appliance should only be done by a qualified, licensed plumber in accordance with all local plumbing codes. The
appliance may be connected to an indirect storage tank to supply domestic hot water. HTP offers 30/45/60/80/119 gallon size indirect
storage tanks in Stainless Steel or 50/80/119 in Glass Lined construction. These indirect storage tanks will be directly connected to the
supply and return connection.
A. GENERAL PIPING INFORMATION
The building piping system must meet or exceed the piping requirements in this manual.
Use two wrenches when tightening water piping at the appliance. Use one wrench to prevent the appliance return or supply line from
turning. Failure to prevent piping connections from turning could cause damage to appliance components.
The appliance control module uses temperature sensors to provide both high limit protection and modulating temperature control. The
control module also provides low water protection by sensing the water level in the appliance. Some codes/jurisdictions may require
additional external controls.
B. RELIEF VALVE
Install supplied pressure and temperature relief valve. Connect discharge piping to a safe disposal location, following the guidelines on
the next page. Replacement is available. See parts list.
To avoid water damage or scalding due to relief valve operation:
Discharge line must be connected to relief valve outlet and run to a safe place of disposal. Terminate the discharge line in a
manner that will prevent possibility of severe burns or property damage should the relief valve discharge.
Discharge line must be as short as possible and the same size as the valve discharge connection throughout its entire length.
Discharge line must pitch downward from the valve and terminate at least
6” above the floor drain, making discharge clearly
visible.
The discharge line shall terminate plain, not threaded, with a material serviceable for temperatures of 375
o
F or greater.
Do not pipe discharge to any location where freezing could occur.
No shutoff valve may be installed between the relief valve and appliance or in the discharge line. Do not plug or place any
obstruction in the discharge line.
Test the operation of the relief valve after filling and pressurizing the system by lifting the lever. Make sure the valve
discharges freely. If the valve fails to operate correctly, replace with a new properly rated relief valve.
FAILURE TO COMPLY WITH THE ABOVE GUIDELINES COULD RESULT IN FAILURE OF RELIEF VALVE OPERATION,
RESULTING IN POSSIBILITY OF SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.
Never use dielectric unions or galvanized steel fittings when connecting to this appliance or any stainless steel storage tank or water
heater. Failure to follow this instruction can lead to premature failure of the appliance system. Such failures ARE NOT covered by
warranty.
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