Lochinvar COPPER-FIN II CF401 Designer's Manual

Lochinvar COPPER-FIN II CF401 Designer's Manual

400,000 – 2,070,000 btu/hr

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DESIGNER'S GUIDE
COPPER-FIN II
®
WATER HEATER
4 0 0 , 0 0 0 – 2 , 0 7 0 , 0 0 0 B t u / h r

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Summary of Contents for Lochinvar COPPER-FIN II CF401

  • Page 1 DESIGNER’S GUIDE COPPER-FIN II ® WATER HEATER 4 0 0 , 0 0 0 – 2 , 0 7 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.
  • Page 3: Table Of Contents

    Table of Contents Codes ......2 FIG. 13 Vertical Vent & Sidewall Air Inlet ....13 Combustion &...
  • Page 4: Codes

    Lochinvar CODES In designing The equipment shall be installed in a water heater system, accordance with those installation pay special attention to: regulations in effect in the local area where the installation is to be made. These shall be carefully followed in all cases. Authorities...
  • Page 5: Requirements For Installation Over Combustible Floor

    Under no circumstances is the manufacturer to be held responsible for water damage in connection with this unit or any of its components. The indoor units must be installed so that the ignition system components are protected from water (dripping, spraying, rain, etc.) during appliance operation and service (circulator replacement, control (FIG.
  • Page 6: Outdoor Use

    Lochinvar Outdoor models must not be installed directly on the ground. The outdoor unit must be installed on a concrete brick, block or other non-combustible pad. Outdoor models have additional special location and clearance requirements. (See Outdoor Venting Pg. 16)
  • Page 7 OPERATOR INTERFACE PANEL FLUE PRODUCTS VENT AIR INLET GAS CONNECTION TERMINAL STRIP COLD WATER INLET DRAIN HOT WATER OUTLET FRONT BACK BURNER INSPECTION PORT LEFT SIDE CF401-751 FLUE PRODUCTS VENT COLD WATER CONNECTION INLET AIR INLET TERMINAL STRIP FRONT 120V ELECTRICAL CONNECTION OPERATOR INTERFACE PANEL...
  • Page 8: Combustion & Ventilation Air

    Lochinvar COMBUSTION & VENTILATION AIR This opening must be located within 12” EXAMPLE OF (30 cm) of the bottom of the enclosure. SIZING FOR Provisions for combustion and ventilation air COMBUSTION must be in accordance with Section 5.3, & VENTILATION B.
  • Page 9: Contaminants

    area of one square inch for each 1000 VENTING Btu (22cm per kW) of input, but not less General than 100 square inches (645 cm These water heaters are classified as Category I appliances when tested to the latest ANSI Standard. This classification requires all conventionally vented combustion products to be vented using Category I listed vent pipe.
  • Page 10 Lochinvar Category I double wall vent (or equivalent) Vent Terminations connectors and sized according to vent The vent terminal should be vertical and sizing tables (FAN column) in the latest exhaust outside the building at least 2 feet edition of the National Fuel Gas Code.
  • Page 11: Cf401

    must be consistent with the National Fuel A barometric damper is required when draft NOTE: Gas Code Z223.1 or in Canada, the latest exceeds 0.08 inches of negative water A vent system should edition of CGA Standard B149 Installation column. When installed and adjusted never be sized based Code for Gas Burning Appliances and properly, a barometric damper will maintain...
  • Page 12: Fig. 9 Multiple Unit Barometric Damper Installation

    Lochinvar generate proper draft. This will result in NOTE: condensing of flue products, damage of the Common venting masonry flue/tile, insufficient draft and systems may be too possible spillage of flue products into an large when an existing occupied living space.
  • Page 13: Table D. Powered Sidewall Vent Kits

    The powered sidewall vent cap pipe material. and accessories are included in a venting kit, which must be furnished by Lochinvar in For models CF401-751, maximum total accordance with CSA International requirements. equivalent length of the vent pipe cannot exceed 50 equivalent feet (15.24m).
  • Page 14 National Fuel Gas Code with the water heater control system. Lochinvar and the following instructions: must furnish this vent kit in accordance with CSA International requirements.
  • Page 15: Air Inlet

    DirectAire ® Vertical EXAMPLE OF This vent system requires the installation of two COMBINED AIR pipes directly to the unit, one vertical pipe with INLET SIZING Two 8” air inlet pipes a roof top termination for the flue products and (50.3 in area each) have one pipe for combustion air.
  • Page 16: Fig. 14 Aire-Lock Direct Vent

    It is a requirement foot (0.30m) above the rooftop and above that both vent pipes terminate in the same normal snow levels. Lochinvar is required to pressure zone. The vent system has specific supply a vent kit for DirectAire applications.
  • Page 17: Fig. 15 Sidewall Vent

    Aire-Lock Horizontal Direct Vent Kits The vent kit includes a DV box adapter; sidewall air inlet cap and sidewall vent termination. Lochinvar must furnish this vent kit in accordance with CSA International requirements. (TABLE G) (FIG. 15) SIDEWALL VENT AIRE-LOCK DIRECT VENT KIT PART NUMBERS...
  • Page 18: Outdoor Installation

    Lochinvar OUTDOOR INSTALLATION NOTE: (TABLE H) SIDEWALL VENT KIT PART NUMBERS Outdoor models must MODEL FLUE PART have an optional NUMBER SIZE NUMBER CF401 6 ” SVK3043 vent cap and air inlet CF501 6 ” SVK3043 shield installed. CF651 8 ”...
  • Page 19: Gas Supply

    (c.) Drain pump and piping. water heater. If freeze protection is not provided for the Lochinvar must furnish an outdoor vent kit system, a low ambient temperature alarm or automatic drain system is recommended. in accordance with CSA international requirements.
  • Page 20: Low Water Temperature Delivery

    Lochinvar A trap (drip leg) should be provided in the WATER CONNECTIONS EXAMPLE OF inlet gas connection to the water heater. HIGH ALTITUDE Inlet and Outlet Water Connections APPLICATIONS For ease of service, install unions on inlet and A manual main gas shutoff valve is For example, if a unit’s...
  • Page 21: Pump Operation

    WATER VELOCITY CONTROL The pump chart (Table M) is based on the NOTE: following fittings: A larger pump must be IMPORTANT utilized in situations To ensure proper velocity through the 6-90° elbows 2 ball valves where the distance heat exchanger, it is necessary to regulate the between the water 2 unions 1 cold water supply tee...
  • Page 22: Electrical Requirements

    Range of Acceptable pH = 7.2 to 7.8 UNITS (Min.) CF 401 thru 751 in condensate formation 2” on the 3” Standard production Lochinvar water heaters ” heat exchanger are designed to operate free of impurity 4” and operational 5” build-up in the heat exchanger when 5”...
  • Page 23 ® C O P P E R - F I N I I W A T E R H E A T E R P I P I N G D I A G R A M S A P P E N D I X A 2 0 0 5 E l m H i l l P i k e •...
  • Page 24 W A T E R H E A T E R P I P I N G D I A G R A M S PIPING DIAGRAM SINGLE HEATER - SINGLE TANK BUILDING HOT WATER SUPPLY COLD WATER SUPPLY LOCHINVAR WATER HEATER RELIEF VALVE INLET OUTLET LOCK-TEMP...
  • Page 25 PIPING DIAGRAM SINGLE HEATER - TWO TANKS BUILDING HOT WATER SUPPLY COLD WATER LOCHINVAR WATER SUPPLY RELIEF VALVE HEATER OUTLET LOCK-TEMP STORAGE TANKS INLET DRAIN BUILDING RETURN 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 PIPING DIAGRAM TWO TEMPERATURE INSTALLATION - SINGLE HEATER-SINGLE TANK F HOT WATER SUPPLY F HOT LOCK-TEMP WATER SUPPLY STORAGE TANK LOW TEMPERATURE LOCHINVAR CHECK VALVE BUILDING RETURN WATER HEATER RELIEF VALVE MIXING VALVE INLET OUTLET DRAIN HIGH TEMPERATURE BUILDING RETURN...
  • Page 27 OUTLET OUTLET BUILDING RETURN INLET INLET LOCHINVAR WATER HEATER Gray shaded area represents common manifold piping. COMMON WATER MANIFOLD SIZE FOR MULTIPLE WATER HEATER INSTALLATION Pipe sizing chart provides minimum pipe size for common manifold piping to insure adequate flow.
  • Page 28 PIPING DIAGRAM TWO HEATERS-TWO TANKS COLD WATER SUPPLY LOCHINVAR WATER HEATER OUTLET RELIEF BUILDING VALVE HOT WATER INLET INLET SUPPLY LOCK-TEMP OUTLET STORAGE TANKS DRAIN BUILDING RETURN Gray shaded area represents common manifold piping. COMMON WATER MANIFOLD SIZE FOR MULTIPLE WATER HEATER INSTALLATION Pipe sizing chart provides minimum pipe size for common manifold piping to insure adequate flow.
  • Page 29 PIPING DIAGRAM MULTI-STACK FRAME W/WATER HEATERS AND STORAGE TANK LIT0396 Lochinv ar ’ 615- 8 89 - 89 00 D E S I G N E R S G U I D E C O P P E R F I N I I 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 C O P P E R F I N I I W A T E R H E A T E R...
  • Page 32 Lochinvar Corporation • Lebanon, TN • 615-889-8900 / Fax: 615-547-1000 www.Lochinvar.com CF-DG-05 11/07-Printed in U.S.A. (Reprint CF-DG-05 1/07)

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