Make Gas Connections - A.O. Smith G9-T5040NVR Installation Instructions And Use & Care Manual

INSTALLATION
Step 11:
Make Gas Connec ons
The Gas Water Heater Hook-Up Kit
(available at Lowe's®) includes a fl ex-
ible gas connector with compression
fi ngs to connect the home's gas line
to the water heater's gas control valve.
Follow the kit's installa on instruc ons
to a ach the fl exible gas connector.
Figure 31 - Flexible gas line connector.
Once you've made the gas connec-
ons, use a small, so -bristled brush
to apply a hand dishwashing soap
and water mixture or children's soap
bubbles (1 part soap to 15 parts water)
to all connec on points of the gas line
and fl exible gas connector (if used).
Make sure to generously coat all the
connec ons and check for gas leaks
(which will appear as small bubbles).
If any leaks are detected, turn the gas
supply off , ghten the leaking connec-
on and re-check.
BEFORE LIGHTING THE WATER
HEATER...
Make sure all checklist items have
been completed.
Water Heater Loca on
✓
Installa on area free of corrosive
or fl ammable materials, liquids or
vapors.
✓
Proper clearances from combus ble
surfaces maintained and suffi cient
22 • Residen al Standard Gas Water Heater Use and Care Guide 22 • Residen al Standard Gas Water Heater Use and Care Guide
room to service the water heater.
✓
Not installed directly on a carpeted
fl oor.
✓
Metal drain pan installed and piped
to an adequate drain.
✓
Water heater not located near an
air moving device (fan, clothes
dryer).
✓
Not in a loca on with large
amounts of lint, dust, etc. (If so,
the air fi lter or fl ame arrestor
located on the bo om of the water
heater will need to be cleaned
more o en.)
Combus on Air Supply and
Ven la on
✓
Adequate air supply for water
heater and any other nearby gas
appliances.
If the water heater is installed in a
closet or other small, enclosed space
or within the living space of the
house, air supply openings needed.
✓
Are the openings of suffi cient size?
✓
Ductwork is the same cross-sec-
onal area as the openings?
✓
Outside air openings are preferred
and may be required in ghtly built
homes.
Vent Pipe System
✓
New dra hood, properly installed.
✓
Vent pipe securely fastened to
dra hood with screws and sup-
ported properly.
✓
Vent pipe made of approved mate-
rial and either 2" or 3" in diameter.
✓
Vent system installed according
to local and state codes or, in the
absence of local and state codes,
the "Na onal Fuel Gas Code", ANSI
Z223.1(NFPA 54)-current edi on.
✓
Check exis ng vent system for rust,
restric ons/obstruc ons.
Water System Piping
✓
Temperature and pressure relief
valve properly installed with a
discharge line run to an adequate
drain and protected from freezing.
✓
Water pipes free of leaks.
✓
Water heater completely fi lled with
water.
✓
Thermal Expansion Tank installed
✓
Water Pressure Reducing Valve
installed and adjusted to 50-60 psi.
✓
Thermosta c Mixing Valves in-
stalled at each point-of-use.
Gas Supply and Piping
✓
Gas type is the same as that listed
on the water heater's data plate.
✓
Gas line equipped with shut-off
valve.
✓
Adequate gas pipe size and ap-
proved gas pipe material.
✓
All gas connec ons and fi ngs leak
checked and any leaks corrected.