Lochinvar COMMERCIAL GAS WATER HEATERS Instruction Manual
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Lochinvar COMMERCIAL GAS WATER HEATERS Instruction Manual

Lochinvar COMMERCIAL GAS WATER HEATERS Instruction Manual

Commercial gas water heaters
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See also: Installation and Servicing Manual , Operation & Installation Manual
300 Maddox Simpson Parkway
Lebanon, TN 37090
Phone: 615-889-8900 • Fax: 615-547-1000
Technical Services email: 2tech@lochinvar.com
www.lochinvar.com
ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED.
IF YOU ARE UNSUCCESSFUL, CONTACT RESIDENTIAL TECHNICAL ASSISTANCE AT 1-615-889-8900 OR VIA E-MAIL AT 2TECH@LOCHINVAR.COM.
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
PRINTED 0911
COMMERCIAL GAS WATER HEATERS
GAMA certification applies
to all residential gas water
heaters with capacities of 20
to 100 gallons with input rating
of 75,000 BTU/Hr. or less.
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
LOW LEAD
COMPLIANT
C3 Technology
®
Gas Water Heaters meet the new
ANSI Z21.10.1 standard that deals with the accidental or
unintended ignition of flammable vapors, such as those
emitted by gasoline.
•

For Your Safety

AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
1

Instruction Manual

•
®
322835-000

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Summary of Contents for Lochinvar COMMERCIAL GAS WATER HEATERS

  • Page 1: Instruction Manual

    ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED. IF YOU ARE UNSUCCESSFUL, CONTACT RESIDENTIAL TECHNICAL ASSISTANCE AT 1-615-889-8900 OR VIA E-MAIL AT 2TECH@LOCHINVAR.COM. KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.

  • Page 2: Safe Installation, Use And Service

    SAFE INSTALLATION, USE AND SERVICE Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard.

  • Page 3: General Safety

    GENERAL SAFETY...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE......2 Draft Hood Operation ............16 GENERAL SAFETY..............3 Condensate............... 16-17 TABLE OF CONTENTS ............4 Smoke/Odor ..............17 INTRODUCTION ..............4 Thermal Expansion ............17 Preparing for the New Installation ........4 Strange Sounds ..............17 TYPICAL INSTALLATION ............. 5-6 OPERATIONAL CONDITIONS ..........18 LOCATING THE NEW WATER HEATER .........7 Smelly Water ..............17...

  • Page 5: Typical Installation

    TYPICAL INSTALLATION GET TO KNOW YOUR WATER HEATER - GAS MODELS A Vent Pipe J Drip Leg (Sediment Trap) Flue Baffl e B Drafthood K Inner Door Thermostat C Anode L Outer door Drain Valve D Hot Water Outlet M Union Pilot and Main Burner E Outlet N Inlet Water Shut-off Valve...

  • Page 6: Typical Installation

    TYPICAL INSTALLATION MIXING VALVE USAGE FIGURE 2. This appliance has been design certifi ed as complying with American HOTTER WATER CAN SCALD: National Standard/CSA Standard for water heaters and is considered suitable for: Water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes washing, dish Water (Potable) Heating and Space Heating: All models are washing, and other sanitizing needs can scald and permanently injure...

  • Page 7: Locating The New Water Heater

    LOCATING THE NEW WATER HEATER fl ammable substances should never be stored or used in the same FACTS TO CONSIDER ABOUT THE LOCATION vicinity or area containing a gas water heater or other open fl ame Carefully choose an indoor location for the new water heater, because or spark producing appliance.

  • Page 8: Insulation Blankets

    Should you choose to apply an insulation blanket to this heater, you should follow these instructions (For identifi cation of components mentioned below, see Figure 1). Failure to follow these instructions can restrict the air fl ow required for proper combustion, potentially resulting in fi...
  • Page 9 combined space shall be considered in making this determination. Each opening shall have a minimum free area of one square inch per 1,000 Btu per hour (22 cm /kW) of the total input rating of all gas utilization equipment in the confi ned space, but not less than 100 square inches (645 cm ).

  • Page 10: Installing The Water Heater

    INSTALLING THE NEW WATER HEATER WATER PIPING As water is heated, it expands (thermal expansion) and closed systems do not allow for the expansion of heated water. The water within the water heater tank expands as it is heated and increases the pressure of the water system.

  • Page 11: Temperature-Pressure Relief Valve

    Figure 10 shows the typical attachment of the water piping to the The valve must be marked with a maximum set pressure not to water heater. The water heater is equipped with 3/4 inch NPT water exceed the marked hydrostatic working pressure of the water heater connections.

  • Page 12: Filling The Water Heater

    FIGURE 11. To insure proper venting of this gas-fi red water heater, the correct FILLING THE WATER HEATER vent pipe diameter must be utilized. Any additions or deletions of other gas appliances on a common vent with this water heater may adversely affect the operation of the water heater.

  • Page 13: Gas Piping

    There must be a minimum of 6 inches (153 mm) clearance between If the main gas line Shut-off serving all gas appliances is used, also single wall vent pipe and any combustible material. Fill and seal any turn “off” the gas at each appliance. Leave all gas appliances shut clearance between single wall vent pipe and combustible material “off”...

  • Page 14: Sediment Traps

    Use pipe joint compound or tefl on tape marked as being resistant (3.5 kPa). It shall be isolated from the gas supply piping system to the action of petroleum [Propane (L.P.)] gases. by closing its individual manual Shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to The appliance and its gas connection must be leak tested before or less than 1/2 pound per square inch (3.5 kPa).

  • Page 15: Lighting & Operating Label

    FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fi re or explosion may result causing property damage, personal injury or loss of life. BEFORE OPERATING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES A.

  • Page 16: Temperature Regulation

    TEMPERATURE REGULATION NOTE: A water temperature range of 120°F-140°F (49°C-60°C) is Due to the nature of the typical gas water heater, the water recommended by most dishwasher manufacturers. temperature in certain situations may vary up to 30F° (16.7 C°) higher or lower at the point of use such as, bathtubs, showers, sink, etc.

  • Page 17: Smoke/Odor

    Because of the suddenness and amount of water, condensation OPERATIONAL CONDITIONS water may be diagnosed as a “tank leak”. After the water in the tank warms up (about 1-2 hours), the condition should disappear. SMELLY WATER Do not assume the water heater is leaking until there has been In each water heater there is installed at least one anode rod (see enough time for the water in the tank to warm up.

  • Page 18: Periodic Maintenance

    PERIODIC MAINTENANCE VENTING SYSTEM INSPECTION You should check for sooting. Soot is not normal and will impair proper combustion. Soot build-up indicates a problem that requires correction before further use. Turn “OFF” gas to water heater and leave off until repairs are made, because failure to correct the cause of the sooting can result in a fi...

  • Page 19: Anode Rod Inspection

    If after manually operating the valve, it fails to completely reset and INSTALLED IN SUITABLE AREA: To insure suffi cient ventilation continues to release water, immediately close the cold water inlet and combustion air supply, proper clearances from the water heater to the water heater, follow the draining instructions, and replace the must be maintained.

  • Page 20: Service

    8. Follow the lighting instructions in the “Lighting” section to restart SERVICE the water heater. If a condition persists or you are uncertain about the operation of the water heater contact a service agency. Use this guide to check a “Leaking” water heater. Many suspected “Leakers”...

  • Page 21: Repair Parts

    REPAIR PARTS LIST Key No. Part Description Burner Assembly Burner Head Burner Orifi ce Burner Tube Pilot Assembly Inner Door Inner Door Gasket Flue Baffl e Flue Restrictor Drafthood Air Intake Screen Inlet Tube Gas Control Valve Drain Valve Drain Valve Washer Outer Door (may appear different than shown) Piezo Ignitor Generator Piezo Ignitor Bracket...

  • Page 22: Troubleshooting

    TROUBLESHOOTING GUIDELINES These guidelines should be utilized by a qualifi ed service agent. When calling for service notify the service agent that this is a “Flammable Vapor Ignition Resistant” Product. Problem Cause Solution Improperly sealed, hot or cold supply connection, Tighten threaded connections.

  • Page 23: Notes

    NOTES:...
  • Page 24 300 Maddox Simpson Parkway Lebanon, TN 37090 Phone: 615-889-8900 • Fax: 615-547-1000 Technical Services email: 2tech@lochinvar.com www.lochinvar.com Copyright © 2011 Lochinvar LLC. All rights reserved.

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