15
sedIMent traps
A sediment trap shall be installed as close to the inlet of the water
heater as practical at the time of water heater installation. The
sediment trap shall be either a tee fitting with a capped nipple in the
bottom outlet or other device recognized as an effective sediment
trap. If a tee fitting is used, it shall be installed in conformance with
one of the methods of installation shown in Figures 12 and 13.
Contaminants in the gas lines may cause improper operation of the gas
control valve that may result in fire or explosion. Before attaching the
gas line be sure that all gas pipe is clean on the inside. To trap any dirt
or foreign material in the gas supply line, a drip leg (sometimes called
a sediment trap) must be incorporated in the piping. The drip leg must
be readily accessible. Install in accordance with the “Gas Piping”
section. Refer to the current edition of the National Fuel Gas Code,
ANSI Z223.1/NFPA 54.
fIGure 14.
fIllInG the water heater
Never use this water heater unless it is completely full of water. To prevent
damage to the tank, the tank must be filled with water. Water must flow
from the hot water faucet before turning “ON” gas to the water heater.
To fill the water heater with water:
1. Close the water heater drain valve by turning the handle to the right
(clockwise). The drain valve is on the lower front of the water heater.
2. Open the cold water supply valve to the water heater.
note: the cold water supply valve must be left open when
the water heater is in use.
3. To insure complete filling of the tank, allow air to exit by opening the
nearest hot water faucet. Allow water to run until a constant flow is
obtained. This will let air out of the water heater and the piping.
4. Check all water piping and connections for leaks. Repair as
needed.
Blower asseMBlY InstallatIon
sequence of InstallatIon
1. This power direct vent water heater comes with the blower
assembly installed.
2 After the unit is set in place, make sure the blower assembly is still
mounted securely, and make sure there is no damage to the blower.
3. Make sure there is no packing material in the discharge of the
blower or the intake, see Figure 15.
4. Make sure that the rubber tubing is still attached from the air
pressure switch to the port on the blower housing. Make sure
the rubber tubing is not folded anywhere between the pressure
switch and the blower housing.
5. Make sure the ON/OFF switch is in the OFF position and that
the wiring harness is connected from the blower control box to
the connector on the bottom side of the gas control valve.
6. If the wiring harness is not factory installed, make sure the ON/
OFF switch is in the OFF position and then connect the wiring
harness from the blower control box to the connector on the
bottom side of the gas control valve.
7. This water heater is a polarity sensitive appliance and will not
operate if the power supply polarity is reversed. The power supply
or outlet providing power to this water heater must be wired
properly (correct polarity).
8. Do not plug in power cord until vent system is completely installed.
This power direct vent heater operates on 110-120 Vac, therefore
a grounded outlet must be within reach of the six (6) foot (1.8 m)
flexible power cord supplied with the unit, see Figure 2. Ensure the
polarity at the outlet is correct. The power cord supplied may be
used only where local codes permit. If local codes do not permit
the use of a flexible power supply cord:
a.) Make sure the unit is unplugged from wall outlet. Remove screws
and remove control box.
b.) Cut the flexible power cord, leaving enough to be able to make
connections, the remove the strain relief fitting from box.
c.) Install suitable conduit fitting in side of enclosure and then follow
(d.) and (e.) below.
d.) Splice field wiring into existing wiring using code authorized
method (wire nuts, etc.).
e.) Be certain that neutral and live connections are not reversed
when making these connections.
f.) Replace control box, make sure that control box is secured shut.
