Instructions / Assembly
TO REMOVE BURNER TRAY:
  1.  Turn off manual gas shut-off valve.
  2.  Disconnect  gas pipe union and wiring to gas  valve,  pilot, & 
blower(If so equipped.).
  3.  Remove retaining screw or bracket from burner tray rail on side 
opposite gas valve.
  4.  Slide burner tray assembly out. When reinstalling the burner 
tray assembly, make certain it is pushed in all the way against 
the stop attached to the bottom pan. Then reinstall the retaining 
screw or bracket.
  5.  Reconnect gas pipe union and wiring to gas valve, pilot, and 
blower(If so equipped), turn on manual gas shut-off valve and 
test for gas leak.
B.  VENTING SYSTEM — Inspect venting system at least yearly 
to make certain the passageways are free and unobstructed, and 
that the vent connectors from the water heater’s draft hood to the 
chimney are properly positioned and securely attached. Remove 
any obstructions in vent connector or chimney and replace  any 
corroded through vent connectors.
C.  CONTROLS — The manifold pressure and controls should be 
checked at least yearly by a qualified service technician.
D.  BLOWER — Clean the blower periodically to remove any buildup 
of lint or dirt.  Remove the inlet plate and blow out any lint or dirt 
on the wheel and on the screen of the inlet plate. Before operation, 
re-install the inlet plate to the blower.
E.  PRESSURE SWITCH —  Inspect  the  inlet to  the  pressure 
switch and the tubing for debris or blockage. Clean out the tubing 
periodically to prevent buildup of debris.
1.This water heater is equipped with a combination thermostat/
temperature limiting device (ECO) that should be checked an-
nually by qualified service personnel.
Label all wires prior to disconnection when servicing controls. Wir-
ing errors can cause improper and dangerous operation.
VERIFY PROPER OPERATION AFTER SERVICING!
2.  The Temperature and Pressure Relief Valve must be free to op-
erate properly. Check (at least once a year) by lifting the handle 
fully and allowing several gallons of water to flush through the 
discharge line. Make certain the discharged water is directed 
to a suitable drain.
Before manually operating the  relief  valve,  make certain no  one 
will be exposed to the danger of coming in contact with the hot 
water released by this valve. The water may be hot enough to cre-
ate a SCALD hazard. The water released should be directed to a 
suitable drain to prevent injury or damage.
  NOTE: If the temperature and pressure relief valve on the water 
heater discharges periodically, this may be due to thermal ex-
pansion in a “closed” water system. Contact the water supplier 
or local plumbing inspector on how to correct this. DO NOT 
plug the relief valve outlet.
D.  TANK— Good maintenance requires that the tank be cleaned of 
deposits. Unless the water supply is soft (0 to 5 grains hardness), 
scale or lime deposits will accumulate in the tank. Hard water scale 
is deposited at an increasingly high rate in proportion to increased 
water  temperature. Accumulation of these deposits may reduce 
efficiency, and shorten the life of the water heater.
  Any new installation should have a tank inspection program set 
up initially for frequent inspection. The first inspection should be 
within a six month period. Once the scaling tendencies have been 
established, the inspection program  can be modified to suit  the 
water conditions. Cleaning should be performed if the scale has 
accumulated above the drain valve opening.
  A wet-dry shop vac with a nozzle fashioned from  1” and/or 3/4” 
polyethylene pipe makes a good tool for scraping and removing 
scale.
TOCLEANORINSPECTTANK:
1.  Shut off gas valve and drain tank.
2.  Remove tank clean-out cover on jacket and with pocket knife 
cut  and  remove  a  circular  plug of insulation  the  full size  of 
jacket opening.
3.  Loosen nut on seal plate assembly enough to twist yoke side-
ways. Hold assembly securely and push inward, then remove 
CAUTION
!
Maintenance
WARNING
!
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