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Theapplianceanditsgasconnectionmustbeleaktestedbeforeplacing
theapplianceinoperation.
TheapplianceanditsindividualShut-offvalveshallbedisconnected
fromthegassupplypipingsystemduringanypressuretestingofthat
systemattestpressuresinexcessof1/2poundpersquareinch
(3.5kPa).Itshallbeisolatedfromthegassupplypipingsystemby
closingitsindividualmanualShut-offvalveduringanypressuretesting
ofthegassupplypipingsystemattestpressuresequaltoorlessthan
1/2poundpersquareinch(3.5kPa).
Connectingthegaspipingtothegascontrolvalveofthewaterheatercanbe
accomplishedbyeitherofthetwomethodsshowninFigures18and19.
CAP
FIGURE18.GAS PIPING WroTH
FLEXmBLECONNECTOR.
GROUND JOINT
UNION_ BLACK PiPE
(OPTIONAL)
3" MIN DRIP LEG
(7,6c {SEDIMENT TRAP I
CAP
FmGURE19, GAS PIPING WroTHALL
BLACK IRON PIPETO GAS CONTROL.
SEDIMENT TRAPS
Fire and E×pmosionHazard
Contaminants in gas lines can
cause fire or explosion.
* Clean all gas piping before
installation.
Install drip leg in accordance with
NFPA54.
Contaminants inthe 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 inthe 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.
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 inthe bottom outlet
or other device recognized as an effective sediment trap. If a tee fitting
is used, itshall be installed in conformance with one of the methods of
installation shown in Figures 18 and 19.
RGURE 20.
TEMPERATURE &
PRESSURE REUEF
DRAINVALVE
/
_==DISCHARGE PBPE
(DO NOT CAP OR PLUG)
FILLING THE WATER HEATER
Property Damage Hazard
Avoid water heater damage.
, Fill tank with water before operating.
15
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. VVater
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 suppmy vamve must be teft open when
the water heater is in use.
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
_UENCE OF INSTALLAT!ON
1.
2
This pc_wervented water heater comes w_ththe blower assembly installed.
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 21.