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31
WATER HEATER INSTALLATION
CONDENSATE DRAIN INSTALLATION
1. Ensure the water heater’s enable/disable switch is in the “disable”
position.
2. Install a 1/2 inch PVC condensate drain line between condensate
drain connection on the Exhaust/Condensate Elbow and a
suitable building drain with a slight downward slope to drain. The
exhaust elbow has a “built in” condensate trap. Do not install an
additional trap in the condensate drain piping. See Figure 36.
3. Terminate the condensate drain piping with an elbow above the
drain. Ensure that any discharge will exit the condensate drain
line no more than 6 inches (15.2 cm) above a suitable building
drain, or external to the building, see Figure 36.
NOTE: In cold climates it is recommended the condensate drain be
terminated at a suitable drain inside the building.
4. Ensure the condensate drain line is not elevated above the
condensate drain connection on the Exhaust/Condensate Elbow,
see Figure 36.
5. Brace the condensate drain line with floor mounted standoffs
every three feet.
6. Ensure the condensate drains freely during start up and the
condensate clean out cap is on and tight when unit is in operation.
7. Condensate clean out cap must be on and tight when unit is in
operation.
DRAIN LINE TO
TERMINATE NO
MORE THAN 6
INCHES (15.2 cm)
ABOVE DRAIN
BUILDING
DRAIN
1/2” NPT
CONDENSATE
DRAIN
CONNECTION
CONDENSATE
CLEANOUT
EXHAUST/CONDENSATE
(VENT) ELBOW
PRESSURE PORT
CONDENSATE DRAIN
LINE - FIELD
INSTALLED
Figure 36
SUPPLY GAS LINE INSTALLATION
Contact your local gas utility company to ensure that adequate gas
service is available and to review applicable installation codes for
your area.
Be sure that the gas meter has sufficient capacity to supply the
rated gas input of the water heater as well as the requirements of
all other gas fired equipment supplied by the meter. If the gas meter
is undersized, the gas company will have to install a properly sized
gas meter.
Make sure the gas supplied is the same type listed on the water
heaters rating label.
The gas piping must be installed according to all local and state
codes or in absence of local and state codes with the “National
Fuel Gas Code”, ANSI Z223.1 (NFPA 54)-current edition. Canadian
installations must be performed in accordance with CAN/CSA-
B149.1-current edition.
Schedule 40 Steel or Wrought Iron Pipe is the preferred material
for the gas line of this water heater. It is imperative to follow the
sizing recommendations in the latest version of the National Fuel
Gas Code if Corrugated Stainless Steel Tubing (CSST) is used as
the gas line for this water heater.
Tables 8, 9, and 10 on Page 32 are provided as a sizing reference for
commonly used gas pipe materials. Consult the “National Fuel Gas
Code” for the recommended gas pipe size of other materials.
Follow the instructions below and reference Figure 37 for gas
piping installation.
1.
Apply thread sealing compounds (pipe dope/ Teflon tape)
sparingly and only to the male threads of the pipe joints. Do
not apply sealing compound to the first two threads. Use pipe
dope or Teflon tape marked as being resistant to the action of
liquid petroleum (LP/propane) gases.
2. Install a readily accessible manual shut-off valve in the gas
supply line as recommended by the local utility. Know the
location of this valve and how to turn off the gas to this unit.
3. Install a sediment trap as shown. The sediment trap must be
no less than 3 inches long for the accumulation of dirt, foreign
material and water droplets.
4. Install a ground union between the water heater and the
manual shut-off valve. This is to allow easy servicing. See
Figure 37 below.
5. Turn the gas supply on and check for leaks. See Gas Line
Leak Testing on Page 32. Use a chloride-free soap and
water solution (bubbles forming indicate a leak) or other
approved method.
NOTE:
Units with inputs of 175,000 BTU/HR or above must have a
minimum of 3/4” NPT gas pipe supplied to the water heater.
Sediment Trap
Figure 37