Sediment Traps; Blower Assembly Installation - Lochinvar RESIDENTIAL GAS WATER HEATERS Instruction Manual

FIGURE 12. GAS PIPING WITH
FLEXIBLE CONNECTOR.
FIGURE 13. GAS PIPING WITH ALL
BLACK IRON PIPE TO GAS CONTROL VALVE.

SEDIMENT TRAPS

A sediment trap (drip leg) 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 fi tting with a capped nipple in the
bottom outlet or other device recognized as an effective sediment trap
(drip leg). If a tee fi tting 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 fi re 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.
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 fi lled with water. Water must fl ow from
the hot water faucet before turning "ON" gas to the water heater.
To fi ll 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 fi lling of the tank, allow air to exit by opening the
nearest hot water faucet. Allow water to run until a constant fl ow 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 vented 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 the air intake screen of the blower assembly
is installed in the dilution air opening. Also make sure the drain port
of the rubber boot vent adapter is capped off. Lastly, 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 of the dilution air restrictor, see Figure 15.
4. Make sure that the plastic tubing is still attached from the air pressure switch
to the port on the blower housing. Make sure the plastic tubing is not folded
anywhere between the pressure switch and the blower housing.
14
FIGURE 14.