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PV500-34 05/03 Section 34
2
STEAM WITH SINGLE-WALL / DOUBLE-WALL
WARNING! Setting the temperature selector to higher settings provides hotter water
which increases the risk of scald injury. Households with small children or invalids may require a
125°F or lower temperature setting to reduce the risk of scald injury. Allow a few days of operation
at your selected setting to determine the correct temperature setting consistent with your needs.
CONNECTING UNIT
CAUTION
All steam and water supply lines should be
flushed before connecting the unit.
1. Use backup wrenches on all screwed pipe
connections to prevent damage to brazed
joints or studded connections. Shutoff valves
and dielectric unions should be installed in
steam and water lines to allow maintenance
on the unit. Steam supply, water supply and
condensate lines must be supported before
connecting the unit.
ELECTRICAL
The heater is wired for 120 volts and must be electrically grounded in accordance with local codes, or in
the absence of local codes, with the latest edition of the National Electrical Code ANSI/NFPA. When
unit is installed in Canada, it must conform to the CSA C22.1, Canadian Electrical Code, Part 1 and/or
local electrical codes.
1. Branch circuit protection and disconnecting
means must be furnished by the installer.
Refer to the wiring diagram provided with
this unit when installing or troubleshooting
the electrical components of this heater.
2. All wiring must be in accordance with all
local, state, or federal codes.
3. Provide proper overload protection for the
system's circulating pump.
NOTE: Use only copper wire of proper sizing for incoming service. Damage resulting from use
of aluminum wiring will be excluded from coverage under the warranty of this unit.