Rheem PRO+G48-60N RH60 Use & Care Manual page 12

Installing the water heater.
The water heater must be installed with the factory supplied draft hood in place.
DANGER: Failure to
install the draft hood and
properly vent the water
heater to the outdoors as
outlined in the Venting
section of this manual will
result in unsafe operation of
the water heater causing
bodily injury, explosion,
fire or death. To avoid the
risk of fire, explosion, or
asphyxiation from carbon
monoxide, NEVER operate
the water heater unless it is
properly vented and has
adequate air supply for
proper operation as
outlined in the Venting
section of this manual.
WARNING: If local codes
require external application
of insulation blanket kits
the manufacturer's
instructions included with
the kit must be carefully
followed.
12
Venting
This water heater is a Category I - Natural
Draft appliance. Vent connectors must be
attached to the draft hood outlet to connect
the water heater to the gas vent or chimney.
The vent connectors must be the same size
(diameter) as the draft hood or larger, never
smaller.
When an existing Category I appliance is
removed or replaced, the original venting
system may no longer be sized to properly
vent the attached appliances. Instructions
shall also indicate effects of an improperly
sized venting system (formation of
condensate, leakage, spillage, etc.)
For proper venting in certain installations a
larger vent connector size may be needed.
Consult the Vent Tables in Appendix G of the
latest version of the National Fuel Gas Code
(ANSI standard Z223.1 or NFPA 54).
Multi-story and common venting is permitted
in accordance with the National Fuel Gas
Code. ANSI Z223.1/NFPA 54, and/or the
Natural Gas and Propane Installation Code.
CSA B149.1. (current edition).
Insulation Blankets
Insulation blankets, available to the
general public, for external use on gas
water heaters are not necessary. The
purpose of an insulation blanket is to
reduce the standby heat loss encountered
with storage tank heaters. This water
heater meets or exceeds the National
Appliance Energy Conservation Act
standards with respect to insulation and
standby loss requirements making an
insulation blanket unnecessary.
The manufacturer's warranty does not
cover any damage or defect caused by
installation, attachment or use of
any type of energy saving or other
unapproved devices (other than those
authorized by the manufacturer) into,
onto or in conjunction with the water
heater. The use of unauthorized energy
saving devices may shorten the life of the
water heater and may endanger life and
property.
The manufacturer disclaims any
responsibility for such loss or injury
resulting from the use of such
unauthorized devices.
IMPORTANT: Multi-story and common
venting is NOT permitted for direct vent
water heaters, water heaters for installation
in manufactured homes (mobile homes),
water heaters for installation in recreational
vehicles, or water heaters for outdoor
installation.
Horizontal vent connectors must be pitched
upward to the chimney at least 1/4" per foot
of length. Single wall vent connectors must
be at least 6" from adjacent unprotected
combustible surface. Vent joints must be
securely fastened by sheet metal screws or
other approved method.
In applicable climates, perodically inspect
the vent terminal to ensure it is not blocked
by snow.
Test for spillage at the draft hood relief
opening after 5 minutes of main burner
operation. Use a flame of a match or candle
or smoke. The flame or smoke should be
pulled into the draft hood's relief opening(s).
CAUTION: If local codes require
the application of an external
insulation blanket to this water heater,
pay careful attention to the following
so as not to restrict the proper function
and operation of the water heater:
DO NOT cover the operating or
●
warning labels attached to the water
heater or attempt to relocate them on
the exterior of insulation blanket.
DO NOT apply insulation to the top
●
of the water heater. This will interfere
with the safe operation of the draft
hood.
DO NOT cover the burner access

door, jacket door, gas control
(thermostat)/gas valve or pressure and
temperature relief valve.
DO NOT apply insulation to the

bottom of the water heater or the
area where the combustion air inlet
openings are located. This area must
be unobstructed so as not to restrict
combustion air flow to the burner.