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VENTING & COMBUSTION AIR
Natural Gas Modulating,
Condensing Water
Heater Models:
• INN600
• INN800
• INN1060
• INN1350
• INN1400
• ReCon 1000
Technical Support:
(Mon–Fri, 8am-5pm EST)
1-800-526-0288
www.aerco.com
Revised: 12/01/2016
The information contained in this manual is subject to change without notice from
AERCO International, Inc. AERCO makes no warranty of any kind with respect to this
material, including, but not limited to, implied warranties of merchantability and fitness
for a particular application. AERCO International is not liable for errors appearing in
this manual, nor for incidental or consequential damages occurring in connection with
the furnishing, performance, or use of these materials.
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
12/01/2016
Innovation Series & ReCon Water Heater
Venting and Combustion Air Guide
INNOVATION
Gas-Fired Water
DISCLAIMER
Heaters
GF-5050
TAG-0043_0Q
RECON
Gas-Fired Water
Heaters
Page 1 of 39
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Table of Contents
Related Manuals for Watts Aerco Innovation Series
Summary of Contents for Watts Aerco Innovation Series
- Page 1 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q VENTING & COMBUSTION AIR INNOVATION RECON Gas-Fired Water Gas-Fired Water Heaters Heaters Natural Gas Modulating, Condensing Water Heater Models: • INN600 • INN800 • INN1060 • INN1350 •...
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Page 2: Table Of Contents
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table of Contents CODES, SAFETY & VENTING SYSTEMS ........... 3 1.1. Introduction........................3 1.2. Applicable Federal Codes ..................... 3 1.3. Gas Vent Categories ....................4 1.4. Certified Venting Materials for Flue Pipe Systems ............5 1.5. -
Page 3: Codes, Safety & Venting Systems
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q CODES, SAFETY & VENTING SYSTEMS 1.1. INTRODUCTION The AERCO gas-fired water heater is a high efficiency, forced draft, domestic hot water heating unit with unique venting capabilities. All venting options (which include horizontal and vertical discharges, direct vent, and manifolded vent breeching), typically exceed the capabilities of competing combustion equipment. -
Page 4: Gas Vent Categories
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q WARNINGS • FOR CORRECT INSTALLATION OF VENT SYSTEM, READ ALL OF THESE INSTRUCTIONS AND REFER TO THE VENT PIPE MANUFACTURER’S INSTRUCTIONS. • FAILURE TO USE THE VENTING SYSTEM DESCRIBED IN THIS DOCUMENT WILL VOID THE MANUFACTURER’S WARRANTY AND MAY RESULT IN RAPID DETERIORATION OF THE VENTING SYSTEM, CREATING A POTENTIAL HEALTH HAZARD. -
Page 5: Certified Venting Materials For Flue Pipe Systems
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q • Category IV, being a gas appliance that operates with a positive vent (fan forced vent) connector with a flue gas pressure and temperature less than 140°F (60°C) above its dew point. - Page 6 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q OPTION 2: VP1738A • Van-Packer Company, Inc., Model CS Special Gas Vent OPTION 3: Polypropylene • DuraVent, PolyPro Commercial. NOTE: Centrotherm provides the adapter when ordering through them directly. However, when ordering through DuraVent, the customer must purchase the required adapter separately.
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Page 7: Exhaust Vent Connection Components
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 1.5. EXHAUST VENT CONNECTION COMPONENTS Figure 1 shows the components and part numbers for connecting the exhaust vents for Innovation and ReCon models. Exhaust Vent Adapters INN600 INN600, INN800, INN1060, INN1350, INN1400 4”... -
Page 8: Exhaust Muffler Guidelines
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 1.7. EXHAUST MUFFLER GUIDELINES Both Innovation and ReCon units require an exhaust muffler when they are installed in a noise- sensitive application and when the exhaust vent ducting is relatively short in length. The following criteria should be used to determine when to include a field-installed muffler in an Innovation and ReCon installations: •... -
Page 9: Combustion Air System
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q COMBUSTION AIR SYSTEM WARNING AIR OPENINGS TO COMBUSTION AREA MUST NOT BE OBSTRUCTED. USE THE INFORMATION BELOW TO ENSURE THAT ADEQUATE COMBUSTION AIR IS MAINTAINED. 2.1. COMBUSTION AIR REQUIREMENTS Innovation and ReCon water heaters require the following combustion air volumes when operated at full capacity: INNOVATION... -
Page 10: Combustion Air From Within The Building
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q WARNING • Non-motorized louvers and grilles must be fixed in an open position. • Minimum screens mesh size shall not be smaller than ¼ inch (6.4 mm) mesh. 6. -
Page 11: Combustion Air From Outside The Building
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q OPENING OPENING Figure 2: All Combustion Air from Adjacent Indoor Spaces through Indoor Openings 2.3. COMBUSTION AIR FROM OUTSIDE THE BUILDING Outdoor combustion air shall be provided through opening(s) to the outdoors in accordance with the methods described below. - Page 12 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q TOP OPENING Figure 3: All Combustion Air From Outdoors - Inlet Air From Ventilated Crawl Space and Outlet Air to Ventilated Attic Figure 4: All Combustion Air from Outdoors – Through Ventilated Attic Page 12 of 39 AERCO International, Inc.
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Page 13: One Permanent Opening Method
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 2. When communicating with the outdoors through horizontal ducts, each opening shall have a minimum free area of 1 inch per 2,000 BTU/hr. (654 mm /0.59 kW) of total input rating of all appliances in the space (see Figure 5). - Page 14 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q OPENING Figure 6: All Combustion Air from Outdoors Through Single Combustion Air Opening The following table lists the minimum required air openings in square inches (square centimeters) freely communicating with the outdoors for boiler/heater room combustion and ventilation air for each unit.
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Page 15: Combustion Air Pipe Sizing
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 2: Summary of Minimum Required Air Openings For Boiler/Heater Room Combustion & Ventilation Air Two Horizontal Single Permanent Two Openings Two Direct or Model Ducts, Each Opening, in from within the Vertical Duct... -
Page 16: Common Combustion Air Systems
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Rule-of-Thumb Examples – Standard North American units of measure: 1. A 40 foot length of combustion air pipe and 1 sharp 90° elbow plus two termination 90° elbows add up to 40 ft. - Page 17 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q NOTE 1: For high wind, wind blocked sites, a tee may be installed at the fresh air inlet. The leg of the tee connects to the combustion air intake. The branches of the tee can be in the horizontal or vertical...
- Page 18 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q VENT VENT NOTE 2 NOTE 2 Individually Sealed Combustion Manifolded Sealed Combustion Located on Different Wall From Exhaust Located on Different Wall From Exhaust VENT VENT VENT Manifolded Sealed Combustion Individual Sealed Combustion Manifolded Sealed Combustion...
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Page 19: Vent System
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q VENT SYSTEM The heater vent is fundamental for correct operation. Being a condensing heater, combustion gases are discharged at a very low temperature. It is therefore necessary for the venting system to be perfectly impermeable to combustion products condensate and to be made of corrosion resistant materials. -
Page 20: Vent Installation
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q The vent system for Innovation and ReCon heaters must be installed in accordance with AERCO’s installation instructions described in this guide. CAUTION For Category IV and II Heaters, the vents must be installed to prevent accumulation of condensate, and have means provided for drainage of condensate. - Page 21 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q VENT PIPE WORM-DRIVE HOSE CLAMP EXHAUST CONNECTOR 1/4" CAP SCREW [4X] (6.4 mm) CLEAN BOTH SURFACES, THEN APPLY 1/4" FLAT WASHER [4X] (6.4 mm) HIGH TEMP SILICON SEALANT HERE EXHAUST MANIFOLD Figure 8: Vent Installation onto Water Heater –...
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Page 22: Installation Procedure For Venting System Through Awall
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 3.2. INSTALLATION PROCEDURE FOR VENTING SYSTEM THROUGH A WALL The minimum distances from adjacent public walkways, adjacent buildings, operable windows and building openings shall not be less that those values specified in the National Fuel Gas Code, ANSI Z223.1 and/or CAN/CSA B149, Installation Codes. - Page 23 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Vent terminations must be at least 3 feet (0.9 m) from inside corners. Category II or IV must not terminate over public walkways or over areas Vent terminations must be where condensate or vapors could 4 feet (1.2 m) from below create a nuisance or hazard.
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Page 24: Installation Procedure For Vertical Venting
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 3.3. INSTALLATION PROCEDURE FOR VERTICAL VENTING WARNING DO NOT INSULATE OR OTHERWISE WRAP VENT PIPE OR FITTINGS. FOLLOW VENT PIPE MANUFACTURERS INSTALLATION INSTRUCTIONS FOR VERTICAL VENTING. The vent termination must be located as follows (refer to Figure 10): a. -
Page 25: Vent Pipe Sizing
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 3.4. VENT PIPE SIZING * The maximum length is the combined length of straight horizontal and vertical runs, and the equivalent straight length of fittings and transition pieces of pipe. The maximum equivalent lengths and minimum pipe diameters are given below in Table 4 for each heater. - Page 26 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q REQUIRED APPROVED Figure 11a: Recommended Connections to Common Vent Breeching Interconnection of groups of units must never be accomplished via a “tee”. As shown in Figure 11b, change the direction with one of the mains and then connect the second three diameters (common section diameter) from this turn via a 45°...
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Page 27: Common Vent Condensate Drainage
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Figure 12: Transition Vent Sections The vent system should always be pitched up 1/4 inch per foot (21 mm/m) (of run towards the vent termination (see Figure 13). This will enable condensate to drain back to the unit for disposal. Low spots in the vent must be avoided. -
Page 28: Combustion Air Duct Pressure Drop Tables
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 3.7. COMBUSTION AIR DUCT PRESSURE DROP TABLES The tables in this section list the pressure drop in sealed combustion air ducts for the Innovation and ReCon models at various outside air temperatures and duct diameters. Table 5: Innovation 600 MBTU (176 kW) Water Heaters –... - Page 29 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 5: Innovation 600 MBTU (176 kW) Water Heaters – In equivalent feet (mm) – Continued Outside Air Temperature (°F) Inlet Duct Duct -30 °F -15 °F 0 °F 20 °F 40 °F...
- Page 30 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 6: Innovation 800 MBTU Water Heater – In equivalent feet (mm) Outside Air Temperature (°F) Inlet Duct Duct -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F...
- Page 31 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 6: Innovation 800 MBTU Water Heater – In equivalent feet (mm) – Continued Outside Air Temperature (°F) Inlet Duct Duct -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F...
- Page 32 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 7: Innovation 1060 MBTU Water Heater Heater – In equivalent feet (mm) Outside Air Temperature (°F) Inlet Duct Duct -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F...
- Page 33 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 7: Innovation 1060 MBTU Water Heater Heater – In equivalent feet (mm) – Continued Outside Air Temperature (°F) Inlet Duct Duct -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F...
- Page 34 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 8: Innovation 1350/1400 MBTU Water Heater Heater – In equivalent feet (mm) Outside Air Temperature (°F) Inlet Duct Duct -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F...
- Page 35 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Table 8: Innovation 1350/1400 MBTU Water Heater Heater – In equivalent feet (mm) – Continued Outside Air Temperature (°F) Inlet Duct Duct -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F...
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Page 36: Flue Vent Pressure Drop Tables
GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q 3.8. FLUE VENT PRESSURE DROP TABLES The tables below list the pressure drop in flue vents in equivalent feet (eq. ft.) or equivalent meters (eq. m) for single Innovation and ReCon water heaters at various duct diameters. All values are based on the assumption of 140°F (60°C) Water Temperature and 70°F (21°C) Rise at Sea Level. - Page 37 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Example using standard North American units of measure: 1) An installer is trying to figure out if he can save some money by using a 4-inch vent (exhaust) design versus a 6-inch when installing a single Innovation 600 water heater.
- Page 38 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Example using metric units of measure: 1) An installer is trying to figure out if he can save some money by using a 101.6 mm vent (exhaust) design versus a 152.4 mm vent when installing a single Innovation 600 water heater. After laying out the design, he determines he needs the following components: c) A 4.6 meter length of combustion air pipe with one (1) sharp 90°...
- Page 39 GF-5050 Innovation Series & ReCon Water Heater Venting and Combustion Air Guide TAG-0043_0Q Change Log Date Description Changed By Rev P PIRs: 934-127: Corrected part numbers in Figure 1; added vent adapter 39006-1 to section 1.5; new sections 1.6 & 1.7; added note 5 to section 2.1;...