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Summary of Contents for Lochinvar POWER-FIN PF0501
- 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 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.
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Page 3: Table Of Contents
Table of Contents Codes ........2 TABLE F Horizontal Direct Vent Kits ...16 Combustion &... -
Page 4: Codes
Lochinvar CODES In designing a hot The equipment shall be installed in water heating system, accordance with those installation regulations pay special attention to: in force in the local area where the installation is to be made. These shall be carefully followed in all cases. -
Page 5: Figures & Tables Index Fig. 1 Clearances From Combustibles
Locate the unit so that if the water The unit must be placed on a connections should leak, water damage level floor; combustible floor locations will not occur. When such locations cannot may be used. be avoided, it is recommended that a suitable drain pan, adequately drained, be (TABLE A) - CLEARANCES FROM COMBUSTIBLES installed under the unit. - Page 6 Lochinvar ELECTRICAL CONNECTION INLET DIAGNOSTIC PANEL CONNECTION COLD WATER INLET HOT WATER OUTLET HEAT EXCHANGER FLUE DRAINS PF0501-1300 ELECTRICAL CONNECTION INLET DIAGNOSTIC PANEL CONNECTION COLD WATER INLET HOT WATER OUTLET HEAT EXCHANGER FLUE DRAINS PF1500-2000 (FIG. 2) WATER HEATER EQUIPMENT AND CONTROL ORIENTATION L o c h i n v a r ’...
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Page 7: Combustion & Ventilation Air
COMBUSTION & should have a net free area of one square EXAMPLE OF VENTILATION AIR inch for each 1000 Btu/hr input. SIZING FOR COMBUSTION Provisions for combustion and ventilation air & VENTILATION must be in accordance with Section 5.3, AIR OPENINGS Air For Combustion And Ventilation, of the (UNIT WITH latest edition of the National Fuel Gas Code... -
Page 8: Contaminants
Lochinvar CONTAMINANTS vent category connectors and sized according to vent sizing tables (FAN column) Combustion air drawn from an interior in the latest edition of the National Fuel Gas or exterior space must be free of any Code. chemical fumes which could be corrosive to the water heater. - Page 9 Additionally, vertical terminations must be a Masonry Chimneys IMPORTANT! A masonry chimney must be properly sized minimum of 3 feet (0.9 m) above the roof The vent cap should and lined for the installation of a high have a minimum line, and when less than 10 feet (3.05 m) clearance of 4 feet from a parapet wall must be a minimum of...
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Page 10: Venting Overview
Lochinvar (TABLE B) POWER-FIN VENTING CONFIGURATIONS CAUTION! VERTICAL VERTICAL FIRING VERTICAL VERTICAL DirectAire DirectAire Vent connectors BTU/HR CODE FIRING NEGATIVE POSITIVE w/ ROOFTOP w/ SIDEWALL HORIZONTAL VERTICAL HORIZONTAL serving appliances INPUT PREFIX CONTROLS DRAFT PRESSURE AIR INLET AIR INLET DirectAire... -
Page 11: Venting Options
VENTING OPTIONS be vented with a negative draft vent system are classified as Category II appliances and must be vented with Category IV corrosion resistant vent material. The vent connection is made directly to the back of the unit using an AL29- 4C corrosion resistant vent pipe. - Page 12 TABLE C. Each kit includes the vent cap for such as a Lochinvar Intelli-Vent system. installation on an exterior sidewall for operation of a single appliance only.
- Page 13 Maximum Length of Sidewall Vent Pipe (0.30m) above grade, above normal snow The maximum installed length of the flue from levels and at least 7 feet (2.13m) above grade WARNING the appliance to the point of termination, when located adjacent to public walkways. No substitutions of flue outside of the building, must The vent terminal shall not be installed closer...
- Page 14 Lochinvar Maximum Length Air Inlet Pipe (TABLE D) – SIDEWALL AIR INLET KITS The maximum installed length of the sidewall or vertical rooftop combustion air inlet pipe MODEL AIR INLET NUMBER INLET must not exceed 50 equivalent feet (15.2m) PF0501 5"...
- Page 15 The sidewall air inlet cap must not be The rooftop air inlet cap must not be installed closer than 10 feet (3.05m) from installed closer than 10 feet (3.05 m) from an inside corner of an L shaped structure. an inside corner of an L shaped structure. The sidewall air inlet cap assembly must The rooftop air inlet cap assembly must adequately protect the combustion air inlet...
- Page 16 Lochinvar Combined Combustion Air Inlet Points The maximum installed length of the EXAMPLE OF combustion air inlet pipe and positive for DirectAire Systems Only COMBINED AIR pressure flue gas vent pipe must not The air inlet pipes from multiple appliances INLET SIZING: exceed 50 equivalent feet (15.2m) in...
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Page 17: In A Different Pressure Zone
Lochinvar The maximum installed length of the combustion air inlet pipe and flue gas vent pipe must not exceed 50 equivalent feet (15.2m) in length per pipe. The flue and air inlet sizes for DirectAire Horizontal systems with Rooftop Air Inlet are (FIG. - Page 18 Lochinvar A Direct Vent system MUST have a dedicated Direct Vent Horizontal Systems A Horizontal Direct Vent system is installed air inlet pipe. Air inlet pipes for multiple units with a Category IV flue and a separate air CANNOT be combined.
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Page 19: Gas Supply
Lochinvar Locally purchased or fabricated sidewall vent In Canada, derated10% from 2,000 - EXAMPLE OF caps and air inlet caps must not be used. The 4,500 ft., over 4,500 ft. derate must be HIGH ALTITUDE part numbers for the required sidewall vent in accordance with local authorities. -
Page 20: Gas Bleeds & Vents
Lochinvar chamber of the water heater. The mixing NOTE: (TABLE H) – INLET GAS PRESSURE REQUIREMENTS NATURAL valve allows the water heater to operate Care should be PF0501 Max. Allowable 10.5" 13" above 140°F to protect from condensation, taken to measure - 1300 Min. -
Page 21: Pump Operation
• 6-90° elbows Range of Acceptable pH = 7.2 to 7.8 • 2 ball valves • 2 unions Standard production Lochinvar water heaters • 1 cold water supply tee are designed to operate free of impurity build-up in the heat exchanger when... -
Page 22: Electrical Requirements
Lochinvar most localities, a flow switch is acceptable ELECTRICAL as a low water cutoff device on water REQUIREMENTS heaters requiring forced circulation. It is (North America) prudent to verify acceptance with the local The appliance is wired for 120 volts. -
Page 23: Water Heater Piping Diagrams
POWER-FIN ® WATER HEATER PIPING DIAGRAMS APPENDIX A L o c h i n v a r ’ 6 1 5 - 8 8 9 - 8 9 0 0 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... -
Page 24: Single Heater-Single Tank
PIPING DIAGRAM SINGLE HEATER-SINGLE TANK COLD WATER SUPPLY BUILDING LOCHINVAR HOT WATER WATER HEATER SUPPLY OUTLET RELIEF VALVE INLET LOCK-TEMP STORAGE TANK TO FLOOR DRAIN BUILDING RETURN (TABLE L) – COMMON MANIFOLD SIZE FOR MULTIPLE POWER-FIN ® WATER HEATERS QUANTITY WATER HEATERS MANIFOLD PIPE SIZE 2-1/2"... -
Page 25: Single Heater-Two Tanks
PIPING DIAGRAM SINGLE HEATER-TWO TANKS (TABLE L) – COMMON MANIFOLD SIZE FOR MULTIPLE POWER-FIN WATER HEATERS ® QUANTITY WATER HEATERS MANIFOLD PIPE SIZE 2-1/2" 4" 4" 5 " 6 " 6 " This illustration is for concept only and should not be used for any actual installation without engineering or technical advice from a licensed engineer. -
Page 26: Single Heater - Single Tank
PIPING DIAGRAM TWO TEMPERATURE - SINGLE HEATER-SINGLE TANK (TABLE L) – COMMON MANIFOLD SIZE FOR MULTIPLE POWER-FIN ® WATER HEATERS QUANTITY WATER HEATERS MANIFOLD PIPE SIZE 2-1/2" 4" 4" 5 " 6 " 6 " This illustration is for concept only and should not be used for any actual installation without engineering or technical advice from a licensed engineer. -
Page 27: Two Heaters-Single Tank
PIPING DIAGRAM TWO HEATERS-SINGLE TANK (TABLE L) – COMMON MANIFOLD SIZE FOR MULTIPLE POWER-FIN WATER HEATERS ® QUANTITY WATER HEATERS MANIFOLD PIPE SIZE 2-1/2" 4" 4" 5 " 6 " 6 " This illustration is for concept only and should not be used for any actual installation without engineering or technical advice from a licensed engineer. -
Page 28: Two Heaters-Two Tanks
PIPING DIAGRAM TWO HEATERS-TWO TANKS (TABLE L) – COMMON MANIFOLD SIZE FOR MULTIPLE POWER-FIN ® WATER HEATERS QUANTITY WATER HEATERS MANIFOLD PIPE SIZE 2-1/2" 4" 4" 5 " 6 " 6 " This illustration is for concept only and should not be used for any actual installation without engineering or technical advice from a licensed engineer. - Page 29 Notes: L o c h i n v a r ’ 6 1 5 - 8 8 9 - 8 9 0 0 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...
- Page 30 Notes: L o c h i n v a r ’ 6 1 5 - 8 8 9 - 8 9 0 0 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...
- 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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