EZ Plate™ Storage Water Heater
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PV500-64 12/14
4. These water heaters are suitable for indoor installation only and must not be subject to freezing.
5. The water heater must be placed on a level surface. Installation on a 4 inch to 6 inch housekeeping pad is
recommended.
6. Locate the water heater so that if water connections should leak, water damage will not occur. Water damage is
not covered by the manufacturer’s warranty.
7. Locate the water heater near a suitable drain capable of accepting hot water discharge (potentially in excess of
210°F) from the water heater temperature and pressure relief valve
8. Once the water heater storage tank and heat engine are placed in their final location, carefully remove all
shipping supports and bracing.
3.5 Service Clearances and Clearance to Combustibles
Service Clearance:
A minimum service clearance of 18" is recommended on all sides and above the appliance to
facilitate easy access for inspection and service of installed components. Optional equipment may increase the
clearance requirements.
Also allow sufficient space for installing and servicing connections such as building water, electrical, pump, boiler
water and other auxiliary/optional equipment.
Clearance to combustibles:
A minimum clearance to combustible materials of 6” is required.
Un dégagement minimal aux matériaux combustibles est de seize cm (16 cm) est nécessaire.
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GENERAL PIPING GUIDELINES
4.1 Potable Water Inlet and Outlet Connections
CAUTION:
To maintain tank corrosion resistance and warranty, do not contact inside (water side) of tank, nozzles or
stainless steel fittings with ferrous (i.e. iron or steel) metal, tools, brushes, etc.
IMPORTANT:
Do not use di-electric nipples, galvanized pipe or fittings or steel pipe or fittings when making
waterside connections. Use only non-ferrous waterside materials.
1. All domestic and boiler water pipes should be flushed before assembly and installation. Failure to flush lines
could cause components to clog or malfunction.
2. To avoid shipping damage, some piping assemblies may be disconnected and separately secured to the
shipping container. Such assemblies must be reconnected. Align and re-connect the heat engine potable water
lines to the storage tank as shown in the product description. If necessary, the storage tank and heat engine can
be relocated by the customer using field-supplied piping. A larger field-supplied pump may be necessary when
increasing the distance between the heat engine and the tank.
3. Always use a back-up wrench on tank and heat engine piping when tightening unions, valves, flanges, etc.
Damage caused by plumbing mistakes, such as over-tightening or not using a backup wrench is not covered by
warranty.
4. Piping and components connected to the water heater must be suitable for potable water, for the water
temperatures they will experience and for their application.
5. Install shut-off valves and unions in the potable water and boiler water inlet and outlet piping to aid in servicing.
Use caution when threading pipe nipples into tank and heat engine connections to prevent cross threading, or
over-tightening.
6. Thermal Expansion Tank –
If the water heater is installed in a closed water supply system, such as one having a
back-flow preventer in the cold water line, provide thermal expansion control.
7. Pipe the Y-strainer blow-down valve and the storage tank drain valve to a suitable open drain capable of
accepting hot water at the temperature discharged when opening the water heater drain valve.
8. When two or more water heaters are piped in parallel it is important that the piping systems are balanced to
assure the full combined capacity is realized. Reverse return piping is recommended for multiple unit
installations.
9. Do not use the water heater or attached piping as an electrical ground of any kind.
10. After plumbing, confirm all connections, components and fittings are leak free.
