Installation Checklist - A.O. Smith 100 Series Installation And Operating Manual

INSTALLATION CHECKLIST

Note: Use and complete this checklist before lighting the heater.
Correct any conditions that do not meet these instructions.
WATER HEATER LOCATION
‰ Centrally located with the water piping system. Located
as close to gas piping and vent pipe system as possible.
‰ Located indoors and in a vertical position. Protected
from freezing temperatures.
‰ Proper clearances from combustible surfaces main-
tained and not installed directly on a carpeted floor.
‰
Provisions made to protect the area from water dam-
age. Metal drain pan installed and piped to an adequate
drain.
‰ Installation area free of corrosive elements and flam-
mable material.
‰ Sufficient room to service the water heater.
GAS SUPPLY AND PIPING
‰
Gas supply is the same type as listed on the water
heater data plate.
‰
Gas line equipped with shut-off valve, union and sedi-
ment trap.
‰ Approved pipe joint compound used.
‰ Adequate pipe size and of approved material.
‰ Chloride-free soap and water solution or other approved
means used to check all connections and fittings for
possible gas leaks.
VENT PIPE SYSTEM
‰
Vent pipe and fittings of approved material.
‰
Acceptable size, length and number of elbows on
exhaust vent system.
‰
Installed in accordance with prevailing provisions of
local codes, or in the absence of such, the latest edition
of Natural Gas and Propane Installation Code B149.1.
‰ Horizontal piping slopes at an upward pitch of 3 mm
(1/8") rise per 1.5 m (5') away from the water heater.
‰ Not obstructed in any way.
‰ Means installed to collect, neutralize (if required) and
dispose of condensate.
VENT TERMINATION
Horizontal
‰
300 mm (12") min. above grade/snow level.
‰
Away from corners, other vents, windows etc.
Vertical
‰ Air Intake and Exhaust terminations 450 mm (18") min.
above roof/snow level.
WATER SYSTEM PIPING
‰ Temperature and Pressure relief valve properly installed
with a discharge line run to an open drain and protected
from freezing.
‰
All piping properly installed and free of leaks.
‰
Heater completely filled with water.
‰
Closed system pressure build-up precautions installed.
‰
Thermostatic Mixing Valves installed at each point-of-
use.
ELECTRICAL CONNECTIONS
‰ Unit connected to a 120V electrical supply. A dedicated
circuit is preferred. Do not use a GFI outlet.
‰ Proper polarity.
‰ Water heater properly grounded.
‰ Installed in accordance with prevailing provisions of
local codes, or in the absence of such, the latest edition
of Canadian Electrical Code (CSA C22.1), Part I.
After all actions on checklist are checked/completed, read the
Lighting Instructions and proceed with lighting the heater.
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