Honeywell 75 GALLON ULTRA LOW NOx user manual

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75 GALLON ULTRA LOW NOx
SUPPLEMENT TO INSTRUCTION MANUAL
P/N 238-47759-00
MINIMUM CLEARANCES
(Replaces pg. 8 in instruction manual)

WARNING
Failure to adhere to these installation and operating instructions may
create a hazard to life and property and will nullify the warranty.


This installation must allow access to the front of the water heater and
adequate clearance must be provided for servicing and operating this water
heater. The water heater may be installed on either a com

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LIGHTING & SHUTDOWN INSTRUCTIONS FOR HONEYWELL GAS CONTROLS. (Replaces pg. 18 in instruction manual) 2

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BURNER FLAME CHECKS (Replaces pg. 21 of instruction manual) These models are equipped with self-adjusting air mixture and do not have an adjustable air shutter. At periodic intervals, a visual check of the main burner and pilot flames should be made to determine if they are burning properly. The main burner flame should light smoothly from the pilot. The burner flame should be soft and undefined. After five minutes of burner operation the burner face should be glowing orange and emit

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(Replaces pg. 24 of instruction manual) Manufactured under one or more of the following U.S. Patents: RE.34,534; B1 5,341,770; 4,416,222; 4,628,184; 4,669,448; 4,672,919; 4,808,356; 4,829,983; 4,861,968; 4,904,428; 5,000,893; 5,023,031; 5,052,346; 5,081,696; 5,092,519; 5,115,767; 5,199,385; 5,277,171; 5,372,185; 5,485,879; 5,574,822; 5,596,952; 5,660,165; 5,682,666; 5,761,379; 5,943,984; 5,954,492; 5,988,117; 6,142,216; 6,395,280; 6,684,821; 7,063,132; 7,007,748 Other U.S. and Foreign p

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PARTS LIST AND DRAWING (Replaces pg. 27 of instruction manual) PART NAME AND DESCRIPTION 1. Draft Diverter 15. Drain Valve 2. Jacket Head Pan 16. Gas Control Valve 3. Jacket 17. Manifold Bracket 4. Outer Door 18. Re-Settable Thermal Switch Wire Harness 5. NIpple-Hot Water Outlet 19. Burner Assembly 6. Flue Baffle Assembly 20. Re-settable Thermal Switch 7. Dip Tube-Cold Water Inlet 21. Burner Assembly Cover 8. T

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THE FOLLOWING INSTRUCTIONS ARE FOR INSTALLATION OF: GAS WATER HEATERS SUITABLE FOR WATER (POTABLE) HEATING AND SPACE HEATING (Replaces pg. 28 of instruction manual) 1. All piping components connected to this water heater for space heating applications must be suitable for use with potable water. In Massachusetts, space heating piping length must not exceed 50 feet. 2. Toxic chemicals, such as those used for boiler treatment, must not be introduced into potable water used for space

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