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PROBLEM

POSSIBLE CAUSE(S)

CORRECTIVE ACTION

HIGH OPERATION COSTS

1.  Thermostat set too high

2.  Sediment or lime in tank

3.  Water heater too small for job

4.  Wrong piping connections

5. Leaking 

faucets

6. Gas 

leaks

7.  Wasted hot water

8.  Long runs of exposed piping

9.  Hot water piping in exposed wall

1.  Set temperature dial to lower setting

2.  Drain/flush-provide water treatment if needed

3.  Install adequate heater

4.  Correct piping-dip tube must be in cold inlet

5. Repair 

faucets

6.  Check with utility-repair at once

7. Advise 

customer

8. Insulate 

piping

9. Insulate 

piping

INSUFFICIENT HOT WATER 1.  Thermostat set too low

2.  Sediment or lime in tank

3.  Water heater too small

4.  Wrong piping connections

5. Leaking 

faucets

6.  Wasted hot water

7.  Long runs of exposed piping

8.  Hot water piping in outside wall

9.  Low gas pressure

1.  Turn temperature dial to desired setting

2.  Drain/flush-provide water treatment if needed

3.  Install adequate heater

4.  Correct piping-dip tube must be in cold inlet

5 Repair 

faucets

6. Advise 

customer

7. Insulate 

piping

8. Insulate 

piping

9.  Check with gas utility company

SLOW HOT WATER 

RECOVERY

1.  Insufficient secondary air

2. Flue 

clogged

3.  Low gas pressure

4. Improper 

calibration

5.  Thermostat set too low

6.  Water heater too small

7.  Wrong piping connections

8.  Wasted hot water

1.  Provide ventilation to water heater. Check flue 

way, flue baffle, and burner

2.  Clean flue, locate source and correct

3.  Check with gas utility company

4. Replace 

thermostat

5.  Turn temperature dial to desired setting

6.  Install adequate heater

7.  Correct piping-dip tube must be in cold inlet

8. Advise 

customer

DRIP FROM RELIEF VALVE

1.  Excessive water pressure

2. Heater 

stacking

3.  Closed water system

1.  Use a pressure reducing valve and relief valve

2.  Lower the thermostat setting

3.  See “Closed System/Thermal Expansion”

THERMOSTAT FAILS TO 

SHUT-OFF

1.  Thermostat not functioning properly

2. Improper 

calibration

1. Replace 

thermostat

2. Replace 

thermostat

COMBUSTION ODORS

1.  Insufficient secondary air

2. Flue 

clogged

1.  Provide ventilation to water heater. Check flue

 

way, flue baffle, and burner

2.  Clean, locate source and correct

SMOKING AND CARBON 

FORMATION (SOOTING)

1.  Insufficient secondary air

2.  Low gas pressure

3. Flue 

clogged

4.  Thermostat not functioning properly

5.  Burner flame yellow-lazy

1.  Provide ventilation to water heater. Check flue 

way, flue baffle, burner

2.  Check with gas utility company

3.  Clean, locate source and correct

4. Replace 

thermostat

5.  See “Burner Flame Yellow-Lazy”

CONDENSATION

1.  Temperature setting too low

1.  Increase the temperature setting

BURNER FLAME FLOATS 

AND LIFTS  OFF PORTS

1.  Orifice too large

2.  High gas pressure

3. Flue 

clogged

4. Cold 

drafts

1.  Replace with correct orifice

2.  Check with gas utility company

3.  Clean flue and burner-locate source and correct

4.  Locate source and correct

BURNER FLAME TOO HIGH 1.  Orifice too large

1.  Replace with correct orifice

FLAME BURNS AT ORIFICE

1.  Thermostat not functioning properly

2.  Low gas pressure

1. Replace 

thermostat

2.  Check with gas utility company

PILOT FLAME

TOO SMALL

1.  Pilot line or orifice clogged

2.  Low gas pressure

1.  Clean, locate source and correct

2.  Check with gas utility company

Содержание Ultra Low Nox Series

Страница 1: ...losion may result causing property damage personal injury or death INSTALLER AFFIX THESE INSTRUCTIONS TO OR ADJACENT TO THE WATER HEATER OWNER RETAIN THESE INSTRUCTIONS AND WARRANTY FOR FUTURE REFEREN...

Страница 2: ...use this appliance if any part has been under water Immediately call a qualified person Water heaters sub jected to flood conditions or any time the gas controls main burner or pilot have been submerg...

Страница 3: ...tally vented gas fueled heat ing appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS INSPECTION The s...

Страница 4: ...uctions thoroughly before attempting the installation or operation of this water heater Do not discard this manual You or future users of this water heater will need it for future reference IMPORTANT...

Страница 5: ...quids in the vicinity of this or any other appliance Storage of or use of gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance can result in serious injury or d...

Страница 6: ...ons The water heater should be located in an area not subject to freezing temperatures Water heaters located in unconditioned spaces i e attics basements etc may require insulation of the water piping...

Страница 7: ...ubbles will show a leak Correct any leak found Gas Pressure IMPORTANT The gas supply pressure must not exceed the maximum supply pressure as stated on the water heater s data plate The minimum supply...

Страница 8: ...ating the water heater next to an outside wall All necessary components are supplied for the standard through the wall installation Optional vertical and horizontal extension kits are available for in...

Страница 9: ...ight for all water heaters is 90 Minimum height for 40 Gallon water heaters 68 and minimum height for 50 Gallon water heaters is 76 Figure 4A Dim B is measured from the center of water heater to the o...

Страница 10: ...e the 3 tube located in the vent cap into the end of the 3 telescoping tube See Figure 7 Drill two holes 180 apart with a 1 8 drill bit and secure with two 8 sheet metal screws Apply sealant to the jo...

Страница 11: ...with the 1 8 drill and fasten with four 8 sheet metal screws provided Apply silicone sealant to the seam Install the 5 inch elbow over the 3 inch elbow and seat it down onto the crimped end of the 5 i...

Страница 12: ...ffit F Clearance to outside corner U S Installation Clearance in accordance with local installation codes and the requirements of the gas supplier G 12 in 30 cm min clearance to inside corner formed b...

Страница 13: ...ure of the water by mixing cold and hot water and are readily available for use 4 If installing the water heater in a closed water system install an expansion tank in the cold water line as specified...

Страница 14: ...rson include licensed plumbers authorized gas company personnel and authorized service personnel Do not plug valve Do not remove valve Failure to follow these instructions can result in death or explo...

Страница 15: ...installed to allow complete drainage of both the valve and discharge line T P Relief Valve and Pipe Insulation Some Models 1 Locate the temperature and pressure relief valve on the water heater also...

Страница 16: ...tem Otherwise these bubbles will be trapped in the air handler heat exchanger coil reducing the efficiency Do not connect the water heater to any system or components previously used with non potable...

Страница 17: ...rough the Roof Venting Through the roof venting has a 15 foot maximum height for the 50 Gallon direct vent water heater and a maximum of 14 3 1 4 for the 40 Gallon direct vent water heater Vent pipe s...

Страница 18: ...Pilot lights 4 Once the Pilot is lit continue to hold the Control Knob in until the Status Light begins to blink 5 Release Control Knob and set Knob to desired temperature setting Hot is approximatel...

Страница 19: ...age personal injury or loss of life TO TURN OFF GAS TO APPLIANCE 1 Turn the gas control temperature knob counterclockwise to the OFF setting The status light will stop blinking and stay on for a short...

Страница 20: ...t This water heater s temperature control has been designed to accurately regulate the water temperature However under certain operating conditions the water temperature may temporarily exceed the dia...

Страница 21: ...ain threshold 35 minutes 1 minute 5 seconds 2 seconds 1 second instantaneous 45 minutes 5 minutes 25 seconds 5 seconds 2 seconds 1 second U S Government Memorandum C P S C Peter L Armstrong Sept 15 19...

Страница 22: ...approximately 55 F This setting is recommended when the water heater is not in use for a long period of time This effectively turns the controller temperature setting down to a temperature that preven...

Страница 23: ...Temperature Control System If the ECO has functioned the gas control valve thermostat should be replaced by a qualified person Contact your local dealer for service information Anode Rod Water Odor Ea...

Страница 24: ...d pilot burner Check for a soft blue flame Leaking or damaged water and gas piping Presence of flammable or corrosive materials in the installation area Presence of combustible materials near the wate...

Страница 25: ...e thermopile wires from the gas control valve thermostat See Figures 22 23 6 Grasp the manifold tube and push down slightly carefully remove the burner door assembly from the burner compartment NOTE B...

Страница 26: ...pilot nut IMPORTANT Keep the pilot orifice in the pilot when making the connection DO NOT operate the water heater without the pilot orifice installed 8 Push the new pilot assembly connectors through...

Страница 27: ...y WARNING Replace manifold component block if missing or removed Replace door gasket if damaged Failure to follow these instructions can Replace viewport if glass is missing or damaged Tighten all bur...

Страница 28: ...water heater Follow the Lighting Instructions on page 18 If additional information is required contact Residential Technical Assistance Operational Checklist TROUBLESHOOTING CHART 4 No leaks at pilot...

Страница 29: ...erature dial to desired setting 6 Install adequate heater 7 Correct piping dip tube must be in cold inlet 8 Advise customer DRIP FROM RELIEF VALVE 1 Excessive water pressure 2 Heater stacking 3 Closed...

Страница 30: ...re contact a qualified person 8 FLASHES This condition only appears if the gas control temperature knob has been turned off and the thermopile continued to produce electric power This condition can oc...

Страница 31: ...E 16 DRAIN VALVE 17 ANODE ROD 18 VIEWPORT 19 DOOR SCREW 20 BURNER DOOR ASSEMBLY NAT GAS 21 MANIFOLD COMPONENT BLOCK 22 OUTER DOOR 23 OPTIONAL VENT GUARD SEE PAGE 12 KIT 6907245 Pictured on next page W...

Страница 32: ...e burner gasket door pilot tube manifold component block with retainer clip temperature sensor and pilot assembly Natural Gas Low Nox Item 20a Pilot assembly kit which contains the pilot electrode and...

Страница 33: ...33 NOTES...

Страница 34: ...34 NOTES...

Страница 35: ...35 NOTES...

Страница 36: ...36 Copyright 2013 All Rights Reserved Printed in the U S A...

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