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Summary of Contents for Lochinvar Copper-Fin II CX401
- Page 1 ® ® D D E E S S I I G G N N E E R R ’ ’ S S G G U U I I D D E E C C O O P P P P E E R R - - F F I I N N I I I I B B O O I I L L E E R R 4 0 0 , 0 0 0 –...
- Page 2 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 boiler for your projects and provide correct specifications for your teams.
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Page 3: Table Of Contents
Table of Contents Air Removal ..... .23 FIG. 17 Heat Exchanger Head Loss Boiler Operating Temperature Control ..24 Models CH 401-751 . -
Page 4: Codes
Lochinvar CODES In designing The equipment shall be installed in a hot water heating accordance with those installation system, pay special regulations in effect in the local area where attention to: the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction shall be consulted before •... -
Page 5: Figures & Tables Index Fig. 1 Models Ch 991- 2071 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 Installation Pg. 16) - Page 7 OPERATOR INTERFACE PANEL FLUE PRODUCTS VENT AIR INLET GAS CONNECTION TERMINAL STRIP SYSTEM RETURN DRAIN SYSTEM SUPPLY BACK FRONT BURNER INSPECTION PORT LEFT SIDE CH 401-751 FLUE PRODUCTS VENT 120V ELECTRICAL CONNECTION CONNECTION AIR INLET TERMINAL STRIP SYSTEM RETURN BACK FRONT OPERATOR INTERFACE PANEL LEFT SIDE...
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Page 8: Combustion & Ventilation Air
Lochinvar COMBUSTION & This opening must be located within 12” EXAMPLE OF SIZING VENTILATION AIR (30 cm) of the bottom of the enclosure. FOR COMBUSTION & VENTILATION AIR Provisions for combustion and ventilation air OPENINGS (BOILER B. Ventilation air opening with a minimum must be in accordance with Section 5.3,... -
Page 9: Contaminants
area of one square inch for each 1000 VENTING CAUTION! Btu (22 cm per kW) of input, but not less General EXHAUST FANS: than 100 square inches (645 cm These boilers are classified as Category I Any fan or equipment appliances when tested to the latest ANSI which exhausts Standard. - 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.
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Page 11: Venting Options
must be consistent with the National Fuel A barometric damper is required when draft Gas Code Z223.1 or in Canada, the latest exceeds 0.08 inches of negative water edition of CGA Standard B149 Installation column. When installed and adjusted Code for Gas Burning Appliances and properly, a barometric damper will maintain draft between 0.02 and 0.08 inches of Equipment. -
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 possible spillage of flue products into an too large when occupied living space. an existing unit is removed. - Page 13 (or equivalent) vent and accessories. The installer and accessories are included in a venting kit, supplies this vent pipe material. which must be furnished by Lochinvar in accordance with CSA International requirements. For models CH401-751, maximum total equivalent length of the vent pipe cannot This venting kit includes the powered sidewall exceed 50 equivalent feet (15.24 m).
- 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.
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Page 15: Fig. 12 Vertical Vent And Air Inlet
DirectAire ® Vertical This vent system requires the installation of two pipes directly to the unit, one vertical pipe with a roof top termination for the flue products and one pipe for combustion air. The combustion air pipe may terminate horizontally with a sidewall air inlet or vertically with a roof top NOTE: air inlet. -
Page 16: Fig. 14 Aire-Lock Direct Vent
It is a requirement foot (0.30 m) 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 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. (FIG. 15) SIDEWALL VENT (TABLE G) AIRE-LOCK...
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Page 18: Outdoor Installation
Lochinvar OUTDOOR INSTALLATION (TABLE H) SIDEWALL VENT KIT PART NUMBERS MODEL FLUE PART NUMBER SIZE NUMBER CH401 6 ” SVK3043 CH501 6 ” SVK3043 CH651 8 ” SVK3044 CH751 8 ” SVK3044 The installer supplies all vent pipe material. Combined Air Inlet Points (FIG. -
Page 19: Gas Supply
If freeze protection is not provided for the water heater. system, a low ambient temperature alarm or automatic drain system is recommended. Lochinvar must furnish an outdoor vent kit in accordance with CSA international GAS SUPPLY requirements. Each kit includes the flue... -
Page 20: Circulator Pump Operation
Lochinvar Installation of a union is suggested for EXAMPLE OF (TABLE K) – INLET GAS PRESSURE MODELS NAT. GAS ease of service. HIGH ALTITUDE CH401-751 APPLICATIONS Maximum Allowable 10.5” 13” Install a manual main gas shut-off valve For example, if a Minimum Allowable 4.5”... -
Page 21: Primary/Secondary Piping
REQUIREMENTS and system is SYSTEM PIPING 70 GPM x 4 = 280 GPM. Lochinvar boilers are generally capable of A variable speed pump operating within the design flow rates for the must not reduce the building heating system. To ensure the most... -
Page 22: Relief Valve
Lochinvar secondary pump(s). When piped correctly, Relief Valve IMPORTANT: Operation the secondary pump helps to prevent flow This boiler is supplied with a pressure relief of this boiler through the boiler(s) when they are not firing. valve sized in accordance with ASME Boiler and... -
Page 23: Low Water Temperature System
IMPORTANT! Low Water Temperature Systems LIT0473 MAKE-UP WATER An ON/OFF boiler Any boiler system operating at a temperature may be protected of less than 140°F is considered a "low water with either a manual temperature system" and must be piped with HEATING SUPPLY LOOP TO FLOOR... -
Page 24: Special Design Applications
Lochinvar in the piping system as shown in Figure 22 SPECIAL DESIGN CAUTION! should not restrict or vary the water flow APPLICATIONS through the boiler. Constant water flow For proper Air Conditioning Re-Heat System operation the through the boiler must be provided at all... -
Page 25: Air Removal
AIR REMOVAL LOW SYSTEM WATER EXAMPLE OF VOLUME BUFFER TANK An air separation device should be placed in APPLICATIONS System run time is very important to overall the installation piping, on the suction side of CHN1261 Boiler operating efficiency of the boiler. Short the system pump, to eliminate trapped air in Run Cycle = 10 Min. -
Page 26: Boiler Operating Temperature Control
circuit, turning the boiler on and off based on NOTE: building and system demands. When the unit ELECTRICAL BOILER OPERATING is installed in REQUIREMENTS TEMPERATURE CONTROL Canada, it MUST conform to the (North America) In the absence of a remote temperature CAE C22.1, The appliance is wired for 120 volts. -
Page 27: Boiler Piping Diagrams
B O I L E R P I P I N G D I A G R A M S PIPING DIAGRAM PRIMARY/SECONDARY BOILER PIPING MAKE-UP WATER HEATING SUPPLY LOOP TO FLOOR DRAIN 12” MAX* *AS CLOSE AS PRACTICAL – HEATING RETURN LOOP 12”... -
Page 28: Multiple Unit Primary/Secondary
PIPING DIAGRAM MULTIPLE UNIT PRIMARY/SECONDARY PIPING MAKE-UP WATER TO SYSTEM SUPPLY CAP EACH MANIFOLD 12” MAX* FROM SYSTEM RETURN *AS CLOSE AS PRACTICAL – 12” OR 4 PIPE DIAMETERS MAXIMUM DISTANCE BETWEEN MANIFOLD CONNECTIONS TO SYSTEM. This illustration is for concept only and should not be used for any actual installation without engineering LIT0475 or technical advice from a licensed engineer. - Page 29 PIPING DIAGRAM LOW TEMPERATURE BOILER-BYPASS PIPING MAKE-UP WATER HEATING SUPPLY LOOP TO FLOOR DRAIN BYPASS *12 ” MAX PRIMARY - SECONDARY BOILER PIPING WITH BYPASS FOR LOW TEMPERATURE OPERATION HEATING RETURN LOOP *AS CLOSE AS PRACTICAL – 12 ” OR 4 PIPE DIAMETERS MAXIMUM DISTANCE BETWEEN MANIFOLD CONNECTIONS TO SYSTEM.
- Page 30 PIPING DIAGRAM LOW TEMPERATURE BOILER-BYPASS PIPING W/ 3-WAY VALVE 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 equipment may not be illustrated. L E G E N D PRESSURE FULL PORT...
- Page 32 Lochinvar Corporation • Lebanon, TN • 615-889-8900 • Fax 615-547-1000 www.Lochinvar.com CH-DG-05 5M-10/05-Printed in U.S.A.
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