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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 this 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

N a s h v i l l e ,   T N   •   6 1 5 - 8 8 9 - 8 9 0 0   •   F a x :   6 1 5 - 5 4 7 - 1 0 0 0

Содержание Copper-Fin CW 495

Страница 1: ...DESIGNER S GUIDE COPPER FIN WATER HEATER 4 9 5 0 0 0 2 0 6 5 0 0 0 B t u h r...

Страница 2: ...d 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 installat...

Страница 3: ...FIG 2 Water Heater Equipment Control Orientation 4 FIG 3 6 Combustion Ventilation Air 5 6 FIG 7 Barometric Damper Installation 8 FIG 8 Multiple Unit Barometric Damper Installation 9 FIG 9 Outdoor Ven...

Страница 4: ...connections should leak water damage will not occur When such locations cannot be avoided it is recommended that a suitable drain pan adequately drained be installed under the unit The pan must not re...

Страница 5: ...istribution piping runs through the floor and beneath the appliance Ensure that combustible floor base meets local fire code requirements Outdoor models require the installation of an optional vent ca...

Страница 6: ...RMINAL STRIP HOT WATER OUTLET COLD WATER INLET BURNER INSPECTION PORT FRONT GAS CONNECTION HOT WATER OUTLET COLD WATER INLET BURNER INSPECTION PORT FRONT AIR INLET FRESH AIR INLET RIGHT SIDE FLUE PROD...

Страница 7: ...re If combustion and ventilation air is taken from the outdoors using a duct to deliver the air to the mechanical room each of the two openings should be sized based on a minimum free area of one squa...

Страница 8: ...ry I listed vent pipe Additionally it is recommended that this vent material be double wall construction or insulated in the field A Category I appliance operates with a non positive static vent press...

Страница 9: ...The vent terminal should be vertical and exhaust outside the building at least 2 feet 0 6 m above the highest point of the roof when within a 10 foot 3 05 m radius Additionally vertical terminations...

Страница 10: ...terial using the FAN category of vent sizing tables in the latest edition of the National Fuel Gas Code FAN applies to fan assisted combustion appliances in Category I Barometric Dampers A barometric...

Страница 11: ...a masonry chimney it is prudent to reline the chimney with a properly sized and approved chimney liner system Metallic liner systems Type B doublewall or flexible or rigid metallic liners are recomme...

Страница 12: ...onto the water heater Lochinvar must furnish an outdoor vent kit in accordance with CSA international requirements Each kit includes the flue outlet combustion air inlet assembly gasket and pump cove...

Страница 13: ...R H E AT E R 6 1 5 8 8 9 8 9 0 0 1 1 4 5 TABLE D GAS SUPPLY PIPE SIZING Length of Pipe In Straight Feet Nominal Iron Pipe Size Inches 10 20 30 40 50 60 70 80 90 100 125 150 175 200 369 256 205 174 155...

Страница 14: ...TANT To ensure proper velocity through the heat exchanger it is necessary to regulate the temperature rise across the heat exchanger from inlet to outlet This must be done on initial installation and...

Страница 15: ...ory installed as a low water cutoff device on models CW495 thru CW2066 The flow switch is installed in the outlet piping from the water heater and wired in series with the ignition system safety contr...

Страница 16: ...nvar NOTE When the unit is installed in Canada it must conform to the CAE C22 1 Canadian Electrical Code Part 1 and or local Electrical Codes NOTE Incorrect piping of the cold water supply to the syst...

Страница 17: ...RELIEF VALVE LOCK TEMP STORAGE TANK DRAIN FULL PORT BALL VALVE SYSTEM PUMP SYSTEM RELIEF VALVE TEE ELBOW UNION EXPANSION TANK CHECK VALVE THERMOMETER COLD WATER SUPPLY BUILDING RETURN INLET OUTLET LO...

Страница 18: ...OW UNION EXPANSION TANK CHECK VALVE THERMOMETER L E G E N D BUILDING HOT WATER SUPPLY LOCHINVAR WATER HEATER COLD WATER SUPPLY BUILDING RETURN LOCK TEMP STORAGE TANK RELIEF VALVE DRAIN OUTLET INLET LI...

Страница 19: ...LET RELIEF VALVE OUTLET COLD WATER SUPPLY 1400 F HOT WATER SUPPLY 1800 F HOT WATER SUPPLY LOCK TEMP STORAGE TANK LOCHINVAR WATER HEATER MIXING VALVE CHECK VALVE LIT0136 This illustration is for concep...

Страница 20: ...PPLY BUILDING HOT WATER SUPPLY LIT0138 This illustration is for concept only and should not be used for any actual installation without engineering or technical advice from a licensed engineer All nec...

Страница 21: ...SUPPLY LIT0451 THERMOMETER This illustration is for concept only and should not be used for any actual installation without engineering or technical advice from a licensed engineer All necessary equi...

Страница 22: ...S G U I D E C O P P E R F I N W A T E R H E AT E R 6 1 5 8 8 9 8 9 0 0 PIPING DIAGRAM MULTI STACK FRAME W WATER HEATERS AND STORAGE TANK LIT0396 Heater Heater Inlet Manifold Model Outlet Size Pipe Si...

Страница 23: ......

Страница 24: ...Lochinvar Corporation Lebanon TN 615 889 8900 Fax 615 547 1000 www Lochinvar com CW DG 05 Revised CW DG 05 1 07 4 09 Printed in U S A...

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