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Dear Specifier/Project Manager,

At Lochinvar, we have long recognized the importance of innovation to any
product or service. Those who enter into business must also accept the challenge
of meeting constantly changing needs.

The designer’s guide you are now holding has been designed to make it more
convenient for you to select the perfect Lochinvar water heater for your projects
and provide correct specifications for your teams.

All information has been organized and presented in a succinct, easy-to-use
manner, so you can use and share information confidently and with minimal
effort.

However, it is important to remember that this guide is not intended to replace our
installation manual. Installers should still refer to our installation manual for
specific installation instructions. 

We hope our manual will make your work easier and more productive.
As always, we greatly appreciate your input on additional improvements for the
future. 

Thanks once again for specifying the Lochinvar family of quality standard
and custom-built water heaters and boilers. 

Sincerely,

Lochinvar Corporation

L o c h i n v a r   C o r p o r a t i o n   •   6 1 5 - 8 8 9 - 8 9 0 0   •   F a x :   6 1 5 - 5 4 7 - 1 0 0 0

Summary of Contents for Power-Fin PF 1500

Page 1: ...DESIGNER S GUIDE POWER FIN WATER HEATER 5 0 0 0 0 0 2 0 0 0 0 0 0 B t u h r...

Page 2: ...ccinct easy to use manner so you can use and share information confidently and with minimal effort However it is important to remember that this guide is not intended to replace our installation manua...

Page 3: ...FIG 11 Sidewall Venting 10 FIG 12 Location Of Sidewall Vent Termination 11 FIG 13 DirectAire Vertical w Sidewall Air Inlet 14 FIG 14 DirectAire Vertical w Rooftop Air Inlet 15 FIG 15 DirectAire Horiz...

Page 4: ...se units are suitable for indoor installation only Venting options and configurations are illustrated in the venting section Indoor units must be installed so that the ignition system components are p...

Page 5: ...unit The unit must be placed on a level floor combustible floor locations may be used 2 3 4 L o c h i n v a r D E S I G N E R S G U I D E P O W E R F I N W A T E R H E A T E R 6 1 5 8 8 9 8 9 0 0 3 T...

Page 6: ...WATER HEATER EQUIPMENT AND CONTROL ORIENTATION PF1500 2000 PF0501 1300 GAS CONNECTION ELECTRICAL CONNECTION INLET AIR HOT WATER OUTLET HEAT EXCHANGER DRAINS FLUE DIAGNOSTIC PANEL COLD WATER INLET GAS...

Page 7: ...0 Btu hr input If a single combustion air opening is provided to bring combustion air in directly from the outdoors FIG 6 the opening should have a net free area of one square inch per 3000 Btu hr inp...

Page 8: ...ust be made with appropriate vent category connectors and sized according to vent sizing tables FAN column in the latest edition of the National Fuel Gas Code The vent and accessories such as firestop...

Page 9: ...result in operational and safety problems A standard masonry chimney must not be used to vent the products of combustion from this high efficiency gas fired appliance A masonry chimney must be careful...

Page 10: ...al Direct Venting uses the unit s internal fan to exhaust the flue products out to a sidewall or rooftop vent termination with a separate sealed combustion air pipe to the outdoors This system termina...

Page 11: ...must terminate at the rooftop Combustion air is supplied from the equipment room Vertical Positive Pressure Venting with Combustion Air Supplied from the Equipment Room PF1500 2000 Models Only Units w...

Page 12: ...e products Combustion air is drawn from the equipment room The connection from the appliance flue outlet to the sidewall vent cap must be made with Category IV type vent materials for both ON OFF and...

Page 13: ...structure The vent cap should have a minimum clearance of 4 feet 1 22m horizontally from and in no case above or below unless a 4 foot 1 22m horizontal distance is maintained from electric meters gas...

Page 14: ...it includes the combustion air inlet cap for installation on an exterior sidewall for operation of a single appliance only Location of a Sidewall Air Inlet Cap Incorrect installation and or location o...

Page 15: ...the flue outlet The rooftop air inlet cap must not be installed closer than 10 feet 3 05 m from an inside corner of an L shaped structure The rooftop air inlet cap assembly must adequately protect th...

Page 16: ...mbustion air inlet pipe at the sidewall to draw air from the outdoors The flue outlet and combustion air inlet terminate in different pressure zones The maximum installed length of the combustion air...

Page 17: ...uired sidewall vent cap kit are listed in TABLE C The part numbers for the required sidewall air inlet cap kit are listed in TABLE D DIRECT VENT SYSTEMS A Direct Vent system uses a flue to the sidewal...

Page 18: ...stems A Horizontal Direct Vent system is installed with a Category IV flue and a separate air inlet pipe to draw combustion air from the outdoors The combustion air inlet cap and flue gas vent cap mus...

Page 19: ...es in heating value and specific gravity tend to offset each other However as elevation above sea level is increased there is less oxygen per cubic foot of air Therefore heat input rate should be redu...

Page 20: ...bove 140 F to protect from condensation while still allowing a delivery of colder water to the system fixtures Also inherent in this design is the protection of occupants from water containing bacteri...

Page 21: ...ausing noise and inefficient operation Excessive build up of materials in the heat exchanger can cause a non warrantable failure Acceptable Water Quality Levels Maximum Water Hardness 25 Grains Minimu...

Page 22: ...or 120 volts All wiring between the unit and field installed devices shall be made of type T wire 63 F 35 C rise The pump must run continuously when the unit is firing It is recommended that the water...

Page 23: ...L o c h i n v a r D E S I G N E R S G U I D E P O W E R F I N W A T E R H E A T E R 6 1 5 8 8 9 8 9 0 0 APPENDIX A POWER FIN WATER HEATER PIPING DIAGRAMS...

Page 24: ...TANK TO FLOOR DRAIN LOCK TEMP STORAGE TANK RELIEF VALVE BUILDING HOT WATER SUPPLY COLD WATER SUPPLY LOCHINVAR WATER HEATER OUTLET INLET BUILDING RETURN TABLE L COMMON MANIFOLD SIZE FOR MULTIPLE POWER...

Page 25: ...ELBOW UNION EXPANSION TANK CHECK VALVE THERMOMETER L E G E N D TABLE L COMMON MANIFOLD SIZE FOR MULTIPLE POWER FIN WATER HEATERS QUANTITY WATER HEATERS MANIFOLD PIPE SIZE 1 2 1 2 2 4 3 4 4 5 5 6 6 6 T...

Page 26: ...SIZE 1 2 1 2 2 4 3 4 4 5 5 6 6 6 PIPING DIAGRAM TWO TEMPERATURE SINGLE HEATER SINGLE TANK FULL PORT BALL VALVE SYSTEM PUMP SYSTEM RELIEF VALVE TEE ELBOW UNION EXPANSION TANK CHECK VALVE THERMOMETER L...

Page 27: ...OLD PIPE SIZE 1 2 1 2 2 4 3 4 4 5 5 6 6 6 PIPING DIAGRAM TWO HEATERS SINGLE TANK FULL PORT BALL VALVE SYSTEM PUMP SYSTEM RELIEF VALVE TEE ELBOW UNION EXPANSION TANK CHECK VALVE THERMOMETER L E G E N D...

Page 28: ...EXPANSION TANK CHECK VALVE THERMOMETER REDUCING TEE REDUCING TEE L E G E N D TABLE L COMMON MANIFOLD SIZE FOR MULTIPLE POWER FIN WATER HEATERS QUANTITY WATER HEATERS MANIFOLD PIPE SIZE 1 2 1 2 2 4 3 4...

Page 29: ...L o c h i n v a r D E S I G N E R S G U I D E P O W E R F I N W A T E R H E A T E R 6 1 5 8 8 9 8 9 0 0 Notes...

Page 30: ...L o c h i n v a r D E S I G N E R S G U I D E P O W E R F I N W A T E R H E A T E R 6 1 5 8 8 9 8 9 0 0 Notes...

Page 31: ......

Page 32: ...Lochinvar Corporation 615 889 8900 Fax 615 547 1000 www Lochinvar com PF DG 04 PP 5M 3 05 Printed in U S A...

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