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Care and cleaning of the water heater.

Draining the Water Heater

!

CAUTION: Shut off gas to the water 

heater at the 

gas control

 (thermostat) gas 

cock or manual shut-off valve before 

draining water.

!

DANGER: Before manually operating the 

temperature and pressure relief valve, make 

certain no one will be exposed to the hot 

water released by the valve. The water 

drained from the tank may be hot enough to 

present a scald hazard and should be 

directed to a suitable drain to prevent injury 

or damage.

Before turning off the cold water supply to 

the water heater, open a hot water faucet 

allowing sufficient cold water into the 

tank to prevent the risk of a scald injury 

while draining the water heater.  Once the 

water in the tank is no longer hot, turn off 

the cold water supply to the water heater.  

Open a hot water faucet or lift the handle 

on the relief valve to admit air to the tank. 
Attach a garden hose to the drain  

valve on the water heater and direct  

the stream of water to a drain. Open  

the valve.

Routine Preventative Maintenance

Properly maintained, your water heater 

will provide years of dependable trouble-

free service. 
It is recommended that a periodic 

inspection of the gas control (thermostat), 

burner, relief valve, internal flue-way and 

venting system should be made by service 

personnel qualified in gas appliance repair.
It is suggested that a routine preventative 

maintenance program be established and 

followed by the user.
Inspect plastic vent pipe.  Make certain 

that all joints are secure and that vent 

pipe supports are all in place.  Check 

the outdoor vent terminal to see that it is 

free of obstructions, and that there is no 

damage nearby casused by condensate.
Inspect dilution air inlet and combustion 

air inlet openings.  Make certain no 

blockage exists.  Clean any lint, dirt or oil 

accumulation that may exist.
At least once a year, lift and release the 

lever handle on the temperature pressure 

relief valve, located near the top of the 

water heater, to make certain the valve 

operates freely. Allow several gallons to 

flush through the discharge line to an open 

drain.

NOTICE: If the temperature and 

pressure relief valve on the water heater 

discharges periodically, this may be due 

to thermal expansion in a closed water 

system. Contact the water supplier or 

your plumbing contractor on how to 

correct this. DO NOT plug the relief 

valve outlet.

A water heater’s tank can act as a settling 

basin for solids suspended in the water. 

It is therefore not uncommon for hard 

water deposits to accumulate in the bottom 

of the tank.  If allowed to accumulate, 

these solids can cover the gas control 

(thermostat) sensors, causing the sensors to 

operate erratically.  Because accumulated 

solids can prevent the gas control 

(thermostat) sensors from accurately 

reading the water temperature, the water 

 

at the fixture can be hotter than the gas 

control (thermostat) setting.  It is suggested

 

that a few quarts of water be drained from 

the water heater’s tank every month to 

clean the tank of these deposits. 
Rapid closing of faucets or solenoid valves 

in automatic water using appliances can 

cause a banging noise heard in a water 

pipe. Strategically located risers in the 

water pipe system or water hammer 

arresting devices can be used to minimize 

the problem.
The anode rod should be removed from the 

water heater’s tank annually for inspection 

and replaced when more than 6” of core 

wire is exposed at either end of the rod.
Make sure the cold water supply is turned 

off before removing anode rod.
This water heater incorporates a 

combustion shut off device that shuts 

the operation of the water heater down if 

undesirable combustion conditions occur, 

such as the presence of flammable vapors 

or blockage of the combustion air inlet 

openings.  Please contact a qualified 

Service Technician if this occurs.

DANGER: Before 

manually operating the 

relief valve, make certain 

no one will be exposed to 

the danger of the hot water 

released by the valve. The 

water may be hot enough to 

create a scald hazard. The 

water should be released 

into a suitable drain to 

prevent injury or property 

damage.

 

DANGER:  Failure to 

perform the recommended 

Routine Preventative 

Maintenance can harm the 

proper operation of this 

water heater, which can cause 

carbon monoxide dangers, 

excessive hot water 

temperatures and other 

potentially hazardous 

conditions.

!

DANGER: Hotter water 

increases the potential for 

Hot Water Scalds.

Blower Assembly Dilution Air Holes

Location of Dilution Air Holes

Summary of Contents for PowerVent AP14236

Page 1: ...he basic directions and recommendations for the proper installation and adjustment of the water heater and two for the owner operator to explain the features operation safety precautions maintenance a...

Page 2: ...time and money over the life of your water heater You ll find many answers to common problems in the Troubleshooting Guide If you review the chart of Troubleshooting Tips first you may not need to ca...

Page 3: ...s paint thinners etc and the vapors they produce are extremely dangerous DO NOT handle use or store gasoline or other flammable or combustible materials anywhere near or in the vicinity of a water hea...

Page 4: ...rature Dial D A N G E R HOT Water temperature over 125 F can cause severe burns instantly or death from scalds Children disabled and elderly are at highest risk of being scalded See instruction manual...

Page 5: ...LP gas must be used with great caution It is heavier than air and will collect first in lower areas making it hard to detect at nose level Before attempting to light the water heater make sure to look...

Page 6: ...installation For residential water heaters of a capacity greater than 52 gallons consult the local building jurisdiction for acceptable bracing procedures Have the installer show you the location of t...

Page 7: ...ate a shut down condition of the water heater which will not allow the water heater to ignite until examined by a Qualified Service Technician The water heater must be located so it is not subject to...

Page 8: ...than one square inch per 4000 Btuh of the total input rating of all the appliances in the enclosure If horizontal ducts are used to communicate with the outdoors each opening must have a minimum net...

Page 9: ...ondition and eliminating the repeated operation of the relief valve Other methods of controlling thermal expansion are also available Contact your installing contractor water supplier or plumbing insp...

Page 10: ...ncealed and should be protected from freezing No valve of any type restriction or reducer coupling should be installed in the discharge line To Fill the Water Heater Make certain that the drain valve...

Page 11: ...s supply piping at pressures equal to or less than 3 8 psi 10 5 w c for natural gas or 1 2 psi 14 w c for LP gas Gas Supply The branch gas supply line to the water heater should be clean 1 2 black ste...

Page 12: ...nual have been met Carefully inspect the entire venting system for any signs of cracks or fractures particularly at the joints between elbows or other fittings and the straight length of vent pipe Che...

Page 13: ...s For the 2 vent one 90 elbow is approximately equal to 6 feet of vent pipe One 45 elbow is approximately equal to 3 feet of vent pipe Minimum vent length for 2 vent pipe is one 1 foot of vertical pip...

Page 14: ...t Pipe Length in Feet ft 0 Maximum Altitude See chart on upper left One 1 None 95 One 1 One 1 92 5 Two 2 None 90 Two 2 One 1 87 5 Three 3 None 85 Three 3 One 1 82 5 Four 4 None 80 Four 4 One 1 77 5 Fi...

Page 15: ...xterior wall under the eaves and on surrounding objects Some discoloration to the exterior of the building is to be expected However improper location or installation can result in severe damage to th...

Page 16: ...without additional support for vent Four 4 feet from any gable dormer or other roof structure with building interior access i e vent window etc Ten 10 feet from any forced air inlet to the building A...

Page 17: ...the joint with a rag Allow 15 minutes before handling Cure time will vary according to fit temperature and humidity NOTICE Stir the solvent cement frequently while using Use a natural bristle brush or...

Page 18: ...nce with latest edition of the National Electric Code ANSI NFPA No 70 Refer to the figures below for water heater internal wiring NOTE It is not recommended that this unit be installed on a GFCI circu...

Page 19: ...ication of an external insulation blanket to this water heater pay careful attention to the following so as not to restrict the proper function and operation of the water heater Do not cover the opera...

Page 20: ...cess Door unless absolutely necessary This should only be done by a qualified service technician A new burner access door gasket must be installed on any burner access door that has been removed DON T...

Page 21: ...and free of leaks Gas line equipped with shut off valve union and sediment trap Approved pipe joint compound used Soap and water solution used to check all connections and fittings for possible gas l...

Page 22: ...ating Installation Spring loaded check valve in heating unit hot water supply line and cold water return line not supplied with water heater NOTE This check valve is incorporated in some heating units...

Page 23: ...s phone Follow the gas suppliers Do not try to light any appliance Do not touch any electric switch do not use any phone in your building WHAT TO DO IF YOU SMELL GAS 9 10 Stop Read the safety informa...

Page 24: ...temperature of the water in the water heater can be regulated by pressing the buttons on the front of the gas control thermostat Safety and energy conservation are factors to be considered when selec...

Page 25: ...refore always remember to test the water temperature with your hand before use and remember that hotter water increases the risk of scald injury Also always supervise young children or others who are...

Page 26: ...as valve which will extinguish the main burner flames The blower motor will stay energized for an additional 30 seconds after the control verifies that the burner flame is extinguished in order to cle...

Page 27: ...ef valve on the water heater discharges periodically this may be due to thermal expansion in a closed water system Contact the water supplier or your plumbing contractor on how to correct this DO NOT...

Page 28: ...ealed area If the burner access door is removed the burner access door gasket must be replaced For cleaning remove the burner from the water heater A vacuum cleaner can be used on the burner and floor...

Page 29: ...Gas Caution in the Operating Instructions Anode Rod This water heater is equipped with an anode rod designed to prolong the life of the glass lined tank The anode rod is slowly consumed thereby elimin...

Page 30: ...inlet openings on water heater jacket Not enough combustion or Proper operation of the water heater requires air for ventilation air supplied to combustion and ventilation See the Combustion and the...

Page 31: ...ion Shutoff System Contact a qualified service technician tripped Water is too hot The gas control thermostat See the Water Temperature Setting of The Water is set too high Heater section of this manu...

Page 32: ...d A B C Error in the hot surface ignitor cir cuit 1 Check that all wiring is correct and secure 2 Replace hot surface ignitor A B C System in lockout 1 Gas supply is off or too low to operate 2 Hot su...

Page 33: ...hermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel Use only original equipment replacement parts Blower Assembly Flue baffle and hanger Anode rod He...

Page 34: ...34 Notes...

Page 35: ...35 Notes...

Page 36: ...an attic the hard wired carbon monoxide detec tor with alarm and battery back up may be installed on the next adjacent floor level b In the event that the requirements of this subdivision can not be...

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