Use and Care Manual
www.usapr ocom.com
200158-02A12
INSTALLATION
Typical Inlet Pipe Diameters
IMPORTANT:
CONNECTING TO GAS SUPPLY
WARNING: A qualied ser-
vice technician must connect
heater to gas supply. Follow all
local codes.
WARNING: This appliance
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: Do not over-
tighten gas connections.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
pressure will occur.
CAUTION: For propane gas,
never connect heater directly
to the gas supply. This heater
requires an external regulator
(not supplied). Install the external
regulator between the heater and
gas supply. Gas supplier provides
external regulator for natural gas.
The installer provides the external
regulator for propane gas.
WARNING: For natural gas,
NEVER connect heater to private
(non-utility) gas wells. This gas
is commonly known as wellhead
gas.
CAUTION: Avoid damage to
regulator. Hold gas regulator
with wrench when connecting
into gas piping and/or ttings.
CAUTION: Use pipe joint
sealant that is resistant to gas
(Propane or Natural Gas).