TRANSMITTAL PROJECT: DPS PROJECT NO.: LOA PROJECT NO: DATE: TO: ATTN.: Stapleton Northfield Campus Phase 1 PP2037 1102 18 August 2014 GE Johnson Construction Co. 5500 N. Central Park Blvd. Denver, CO 80239 Tyler Clements, Chad Wilson We are sending you: Submittal #0054-SLC BP2 Reviewed X Drawings Shop Drawings Specifications Samples Reports Other SHOP DRAWING NO.
Submittal Transmittal Detailed, Grouped by Each Number, Submittal Transmital Number is Package Number Denver Public Schools Denver, CO Date: Project # 1405 Tel: 303.221.1249 G. E. Johnson Construction Company, Inc. Fax: 303.221.1989 7/18/2014 Transmitted To: Submittal Transmittal Number: Tim Habben LOA Architecture PC Tyler Clements G. E. Johnson Construction Company, Inc. 25 North Cascade Avenue, Suite 400 Colorado Springs, CO 80903 Tel: 719.473.5321 Fax: 719.473.
Submittal Transmittal Detailed, Grouped by Each Number, Submittal Transmital Number is Package Number Remarks Tim, Submittal #54 has been uploaded to Crush.
SUBMITTAL REVIEW FORM Stapleton Northfield Campus - SLC ME Project Number: DV13044.00 Specification Sections: 23 52 00 Submittal Number: 0054-235200-0 Packaged Boiler Product Data Review Date: 08/14/14 (Received by M-E Engineers, Inc. 08/04/14) Subcontractor: RK Mechanical NOTE: Checking is only for general conformance with the design concept of the project and general compliance with the information given in the contract documents.
Submittal Cover Sheet Date Submitted: July 17, 2014 Date Due Back: July 28, 2014 RK Submittal No.: 3-0 Specification Section: 23 5200 - Condensing Boilers Project Name: DPS - Northfield Campus General Contractor: GE JOHNSON CONSTRUCTION Mechanical Contractor: RK Mechanical, Inc. 3800 Xanthia Street Denver, CO 80238 Subcontractor/Supplier: Taft Engineering LLC P.O. Box 3153 Englewood, CO 80155 Reviewed for general conformance with the contract requirements and with other crafts.
19 30 29 21 P 3"øHWR SHOP DRAWING: BOILERS WILL BE LOCATED ON HOUSEKEEPING PAD AS SHOWN ON M6.01 IN AREA C (ROOM 142) MECHANICAL. UH S1.03 3"øHWS B B S1.02 S1.01 4"øHWR 4"øHWR 4"øHWS 4"øHWS 19 AIR SEPERATOR HWP S1.02 GLYCOL FEED ASSEMBLY 4" THICK HOUSEKEEPING PAD BY GC (TYP). ET 2 HWP Q S1.01 Q. Q 1"øHWS S1.01 GFP S1.
AERCO INTERNATIONAL, INC. 100 Oritani Drive, Blauvelt, NY 10913, Phone 845‐580‐8000 TRANSMITTAL OF SUBMITTAL DRAWINGS Date: June 26, 2014 Purchaser: RK Mechanical 3800 Xanthia St.
AERCO INTERNATIONAL, INC.
AERCO INTERNATIONAL, INC.
AERCO INTERNATIONAL, INC.
AERCO INTERNATIONAL, INC.
LIMITED WARRANTY: BENCHMARK 750 - 6000 GAS-FIRED BOILER BENCHMARK LIMITED WARRANTY BENCHMARK 750 - 6000 GAS-FIRED BOILER PRESSURE VESSEL/HEAT EXCHANGER: 10 YEAR NON-PRORATED FROM SHIPMENT The pressure vessel/heat exchanger shall carry a 10 year non-prorated, limited warranty from date of shipment against any condensate corrosion, thermal stress failure, mechanical defects or workmanship. Operation of the boiler using contaminated air will void the warranty.
LIMITED WARRANTY: BENCHMARK 750 - 6000 GAS-FIRED BOILER (Continued) AERCO shall accept no responsibility if such item has been damaged due to contaminated combustion air containing but not limited to sheetrock particles, plaster board particles, dirt, dust, lint, and corrosive chemicals such as chlorine gas, halogenated hydrocarbons, and Freon. In order to process a warranty claim a formal purchase order number is required prior to shipment of any warranty item.
BMK SERIES TECHNICAL DATA SHEET Benchmark 750 - 6000 Condensing Hydronic Boilers The AERCO Benchmark (BMK) Water Boiler is designed for condensing application in any closed loop hydronic system. It delivers unmatched burner modulation to match energy input directly to fluctuating system loads to yield the highest possible seasonal efficiencies. And no other product packs as much capacity into such a small footprint.
RATINGS: Model Number Min Input MBH Max Input MBH Max Outputa MBH Efficiency Range AHRI Efficiency 80º to 180ºF BMK 750 50 750 653-720 87%-98% 95.50% BMK 1000 50 1000 870-960 87%-98% 96.80% BMK 1500 75 1500 1305-1425 87%-99% 95% (pending) BMK 2000 100 2000 1740-1900 87%-98% 95% (pending) BMK 2500 167 2500 2175-2360 87%-98% 93.50% BMK 3000 200 3000 2610-2880 87%-98% 93.50% BMK 6000** 400 6000 5220-5670 87%-98% 94.
SPECIFICATIONS: BMK750 BMK1000 BMK1500 BMK2000 BMK2500 BMK3000 BMK 6000** ASME Sect.IV ASME Sect.IV ASME Sect.IV ASME Sect.IV ASME Sect.IV ASME Sect.IV ASME Sect.IV Gas Connections (NPT) 1’’ 1’’ 1.5’’ 2’’ 1.5’’ 2’’ 2’’ Max. Gas Pressure 14’’ 14’’ 14’’ 14’’ 14’’ 14’’ 2psi Min. Gas Pressure 4’’ 4’’ 4’’ 4’’ 4’’ 4’’ 14’’ Max. Allowed Working Pressure 160 PSIG 160 PSIG 160 PSIG 160 PSIG 160 PSIG 160 PSIG 80 PSIG/150 PSIG Optional Electrical Req.
NOTES: Represented By: Specifications subject to change without prior notice. Consult website or contact AERCO. BMK SERIES 08/2013 NY WATER HEATERS • BOILERS • PARTS & ACCESSORIES AERCO INTERNATIONAL, INC. 100 ORITANI DR. • BLAUVELT, NY 10913 (845) 580-8000 • FAX (845) 580-8090 www.aerco.
BST TECHNICAL DATA SHEET C-MORE CONTROLLER WITH BOILER SEQUENCING TECHNOLOGY (BST) Master On On On Off Off Off LOAD SHARING STRATEGY MAXIMIZES ENERGY EFFICIENCY It requires less energy for a group of modulating boilers, each firing at “part load,” to heat a building, than for a single boiler operating at “full fire” to carry the entire workload. To meet building demand, the BST will employ as many boilers as available, each operating at its most efficient firing rate.
STATE-OF-THE-ART CONTROL SYSTEM SUPPORTS EFFICIENT BOILER PLANT OPERATION! The C-MORE AERCO with Boiler Sequencing is a flexible controller designed to maximize energy savings in modular boiler plants. The BST can stage and coordinate the operations of up to 8 boilers and is uniquely designed to maximize uptime reliability and the operating efficiency of condensing equipment capable of unmatched modulation. For boiler plants greater than 8 boilers, the AERCO Control System (ACS) panel is required.
ROBUST FEATURES SIMPLIFY CONTROL • Application Flexibility – Different configuration options meet the needs of any closed loop system and can be changed in the field. • Time Delay Between Boiler Start – An adjustable time delay between boiler starts allows for a smooth energy input without spikes in electrical, gas or venting conditions.
• Setback Setpoint Gradual Decrease – Whenever boilers are running at a high rate and the SetbackSetpoint feature is activated, the sudden decrease in setpoint will cause the PID to drastically cut back on fire rate. This sudden decrease in fire rate will often cause the boilers to drop below their Stop Levels causing them to turn off, thereby causing excessive cycling and loss of heating capacity while the boilers can re-ignite.
CMR TECHNICAL DATA SHEET AERCO C-More™ Control System Advanced Technology for Easy and Reliable Control of AERCO Gas-Fired Boilers and Water Heaters. The AERCO C-More Control System offers customers more than just an easy-to-use, highly reliable control system for boiler and water heater management. The system incorporates the latest electronic technology to see and do more than was previously possible.
Future-Proof Software in a Hardware Enclosure that is Built to Last The most important feature of any product manufactured in today’s “information age” is its ability to network with related equipment. And not just the equipment and systems that are available today – but those that are still on the horizon. This indisputable fact was a guiding principle in the design of the AERCO C-More Control System.
Simple & Clear Display Messages are a Breeze for Maintenance Personnel Forty-two distinct messages convey system status throughout the full start-up sequence and pinpoint the exact nature of any fault or operating problem. The easy-to-read display panel uses clear, simple language — rather than obscure programming codes – to ensure that day-to-day operations and annual maintenance goes smoothly for onsite maintenance staff and professional service contractors.
Precise Temperature Control The superior performance of AERCO equipment is due, in part, to tremendous condensing capabilities and unique firing technology. Put simply, AERCO extracts and transfers as much heat as possible from a highly efficient combustion process. Unparalleled, fully modulating, non-stepped burner turndown precisely matches heat input to load requirements. A state-of-the-art PID control system was employed to fully exploit the potential of such robust boiler mechanics.
PROTONODE GATEWAYS TECHNICAL DATA SHEET AERCO/PROTONODE GATEWAYS AERCO offers a multi-protocol, communications gateway to support integration with customers’ building control and energy management systems. The plug-n-play package supports integration with BACnet/IP, BACnet MS/TP, LonWorks, and Johnson Controls Metasys N2 systems. AERCO’s Communications Gateway is available for all AERCO boilers, *water heaters and electronically controlled indirect systems.
DIMENSIONS: AERCO/ProtoNode-RER-E AERCO/ProtoNode-LER (Serial Ethernet, P/N 64084) (LonWorks, P/N 64085) SPECIFICATIONS: 64084: 1 - 6 pin Phoenix Connector • 1 RS-485 +/- Ground port • Power +/- Frame Ground port 1 - 3 pin Phoenix connector RS-485 • 1 RS-485 +/- Ground port 1 Ethernet -10/100 Ethernet port 64085: Power Requirements……………… 9-30 VDC or 9-24 VAC Current draw @ 12V 64084…………………………… @ 12V = 150 mA 64085…………………………… @ 12V = 279 mA Operating Temp.
BMK 1500 BTU vs.
BMK 1500 ‐ 2000 Water Side Pressure Drop 6.5 6 5.5 5 4.5 psi 4 3.5 3 2.5 2 1.
Thermal Efficiency of BMK 1500 100 99 100% 80% 98 60% 97 40% 20% 96 5% Efficiency (%) 95 94 93 92 91 90 89 88 87 86 85 70 80 90 100 110 120 130 140 Return Water Temperature (°F), with 20° Rise 150 160 170
MOV-02 Product Specification BUTTERFLY MOTORIZED VALVE (AM/GM/GK/DKRX ACTUATOR) 24V Valves are supplied by Belimo to AERCO’s specification. • 50 psi bubble tight shut-off • Long stem design allows for 2” insulation • Valve face-to-face dimensions comply with API 609 & MSS-SP-67 • Completely assembled and tested, ready for installation Application These valves are designed to meet the needs of HVAC and commercial applications requiring bubble tight shut-off for liquids.
Operation Actuator Technical Data Power Supply 24VAC ±20% 50/60Hz 24VDC ±10% The actuator is electronically protected against overload. Power consumption AMX GMX GKX DKRX Running (Holding) 3.5 W (1.3 W) 4.5 W (1.5 W) 12 W (3 W) 12 (3W) The AMX, GMX, and GKX series actuators provide 95° (DKRX:90°) of rotation and a visual indicator shows the position of the actuator. When reaching the damper or actuator end position the actuator automatically stops.
B K I 7 3 4" 5 2 2 1 1 2 1 2 2 2 Qty 3 6 www.bkiindustries.com 4 3 10 7 2 5 1 1 Outlet Inlet Date: 11-9-11 Approved by: Revision: 1.1 Scale: None P.O. Box 256 Walled Lake, MI 48390 Phone: 248-977-5550 Fax: 248-438-1674 BKI Industries, Inc **Dimensions are Approximate** **Patent Pending Design** Made in the U.S.
SUBMITTAL MM-627 JOB: REPRESENTATIVE: UNIT TAG: ORDER NO. DATE: ENGINEER: SUBMITTED BY: DATE: CONTRACTOR: DATE: APPROVED BY: FS251 Series FS250 General Purpose Liquid Flow Switches FS254 Materials of Construction Series FS250 Part Specifications Wetted Body Brass Paddle arm Brass Pipe Size NPT (in.
Series FS250 General Purpose Liquid Flow Switches Series FS250 Dimensions FS251 MM-627 Page 2 FS254 Dimensions Reference FS251 FS254 A 3 (76) 3-1/4 (83) B 1-1/2 (38) 1-5/8 (41) C 2-7/32 (56) 3/4 (19) D 7/8 (22) 1/2 NPTF E 6-3/8 (162) 6-3/16 (157) F 2-15/16 (75) 2-3/4 (70) G 3-3/8 (86) 3-7/8 (98) H 1-11/16 (43) 2-1/4 (57) J 1-1/2 (38) 1-1/2 (38) K 1-1/8 (29) 1-1/8 (29) 3-7/16 (87) 3-7/16 (87) M 2-1/16 (52) 1-7/8 (48) N 1" NPTM 1" NPTM 2-5/16 (59) 2-5/16 (59) L (w
GF-2030 Benchmark Series Boilers Gas Supply Design Guide TAG-0047_0G GAS SUPPLY DESIGN GUIDE Natural Gas, Propane Gas, or Dual Fuel Fired Modulating, Condensing Boilers BENCHMARK Series Gas-Fired Boilers For models: BMK750 to BMK6000 Last Update: 10/04/2013 PR1 10/04/13 AERCO International, Inc. • 100 Oritani Dr.
GF-2030 TAG-0047_0G Benchmark Series Boilers Gas Supply Design Guide Technical Support: (Mon–Fri, 8am-5pm EST) 1-800-526-0288 www.aerco.com Disclaimer 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.
GF-2030 TAG-0047_0G Benchmark Series Boilers Gas Supply Design Guide GENERAL AERCO Benchmark Low NOx gas fired boilers are modulating input devices that require an adequate volume of natural gas at constant pressure for proper operation. The gas requirements specified in this document must be satisfied to ensure efficient combustion. Designers and installers must adhere to the AERCO specifications and those of the local authorities having jurisdiction.
GF-2030 TAG-0047_0G Benchmark Series Boilers Gas Supply Design Guide An external isolation valve must be installed at each Benchmark Low NOx boiler, as shown in Diagram 1. This isolation valve is supplied with the boiler. For installations that have greater than 14.0” W.C. supply pressure, an external lockup type regulator must be installed downstream of the isolation valve.
GF-2030 Benchmark Series Boilers Gas Supply Design Guide TAG-0047_0G GAS PRESSURE REGULATOR NATURAL GAS SUPPLY (Required for Massachusetts installations) MANUAL SHUTOFF VALVE Diagram 1. Single Boiler Gas Pipe Connections (BMK 2000 Shown) CUSTOM GAS TRAINS Some utilities, insurance carriers, and industrial customers have special requirement gas components on high input devices beyond that which are normally supplied with AERCO boilers.
GF-2030 Benchmark Series Boilers Gas Supply Design Guide TAG-0047_0G GAS PIPING All gas piping and components must comply with NFPA local codes, and utility requirements minimum. Only gas approved fittings, valves, or pipe should be utilized. Standard industry practice for gas piping is Schedule 40 iron pipe and fittings. All high and low gas pressure piping systems must comply with local utility and building codes.
GF-2030 TAG-0047_0G Benchmark Series Boilers Gas Supply Design Guide MANUAL SHUTOFF VALVE (TYP.) GAS SUPPLY GAS PRESSURE REGULATOR (TYP.)* * NOTE A supply gas regulator is required on each boiler gas inlet only for Massachusetts installations. DIRT TRAP (TYP.) Diagram 3: Typical Multiple Boiler Manifold Construction *Based on Table 1 on the following page for natural gas, 0.6 specific gravity, 1,000 cfh/unit, actual header sizes will vary with length of pipe run and fittings employed.
GF-2030 Benchmark Series Boilers Gas Supply Design Guide TAG-0047_0G GAS PIPING TABLES The data in the following pipe and vent sizing tables have been extracted from the National Fire Protection Association Article 54 (NFPA 54) TABLE 1 Maximum Capacity of Pipe in Cubic Feet of Gas per Hour for Gas Pressures of 0.5 psi or Less and a Pressure Drop of 0.
GF-2030 Benchmark Series Boilers Gas Supply Design Guide TAG-0047_0G TABLE 4 Pipe Sizing Table for 5 Pounds Pressure Capacity of Pipes of Different Diameters and Lengths in Cubic Feet per Hour for an Initial Pressure of 5.0 psi with a 10% Pressure Drop and a Gas of 0.6 Specific Gravity Pipe Size of Schedule 40 Standard Pipe (Inches) Internal Diameter (Inches) 50 100 150 200 250 300 400 500 2.00 2.067 11786 8101 6505 5567 4934 4471 3827 3391 2.50 2.
GF-2030 Benchmark Series Boilers Gas Supply Design Guide TAG-0047_0G Change Log Date Description Changed By 09/03/2013 Rev F: Removed refs to BMK1.5/2.0, changed all images, added references to 1500, 2000, 2500 units. Curtis Harvey 10/04/2013 Rev G: Modified 2 drawings to remove multiple dirt traps (installations have 1 dirt trap per gas input line, not per unit) per PIR 936. Chris Blair © AERCO International, Inc., 2013 Visit Us at www.aerco.com PR1 10/04/13 AERCO International, Inc.
Benchmark Series Boilers GF-2050 Venting and Combustion Application Guide TAG-0022_0S VENTING AND COMBUSTION AIR GUIDE Natural Gas, Propane Gas, or Dual Fuel Fired Modulating, Condensing Boilers Benchmark Series Gas Fired Boilers For models: BMK 750 to BMK 6000 Revised: 12/03/2013 AERCO International, Inc. • 100 Oritani Dr.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide Technical Support: (Mon–Fri, 8am-5pm EST) 1-800-526-0288 www.aerco.com Disclaimer 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.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S Table of Contents 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 12/03/2013 General .................................................................................................................... 4 Materials and Approvals ......................................................................................... 4 Code Required Vent Terminations .......
GF-2050 TAG-0022_0S 1.1 Benchmark Series Boilers Venting and Combustion Application Guide General The AERCO Benchmark gas-fired boiler is a high efficiency, forced draft, hydronic-heating unit with unique venting capabilities. All Benchmark venting options (which include horizontal and vertical discharges, direct vent, and manifolded vent breeching), typically exceed the capabilities of competing combustion equipment.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S AIR INLET AIR INLET EXHAUST VENT CONNECTION EXHAUST VENT CONNECTION CONDENSATE TRAP CONDENSATE TRAP Figure 1a: BMK 750/1000 Figure 1b: BMK 1500/2000 AIR INLET AIR INLET EXHAUST VENT CONNECTION EXHAUST VENT CONNECTION CONDENSATE TRAP Figure 1c: BMK 2500/3000 12/03/2013 CONDENSATE TRAP Figure 1d: BMK 6000 AERCO International, Inc. • 100 Oritani Dr.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide The bottom of the vent termination should be at least 12 inches above both finished grade and any maximum snow accumulation level to avoid blocking the vent or air intake. The vent termination should be least 3 feet above any forced-air building inlet within 10 feet. Design must prevent flue gases from recirculating through the boiler air intake.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S and other combustion equipment ― the combustion air supply system must be designed to accommodate all such equipment when all are operating simultaneously at maximum capacity. Combustion air intakes must be located in areas that will not induce excessive (>0.10" water column (W.C.)) intake air pressure fluctuations. Designs should take into account equipment blowers and exhausts when using room air for combustion.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide Figure 2: All Combustion Air from Adjacent Indoor Spaces through Indoor Combustion Air Openings 1.6 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. The minimum dimension of air openings shall not be less than 3 inches (80 mm).
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S Figure 3: All Combustion Air From Outdoors - Inlet Air From Ventilated Crawl Space and Outlet Air to Ventilated Attic 12/03/2013 AERCO International, Inc. • 100 Oritani Dr.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide Figure 4: All Combustion Air from Outdoors - Through Ventilated Attic 2. When communicating with the outdoors through horizontal ducts, each opening shall have a minimum free area of 1 inch2 per 2,000 BTU/hr. (1100 mm2/kW) of total input rating of all appliances in the space (see Figure 5). Page 10 of 40 AERCO International, Inc. • 100 Oritani Dr.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S Figure 5: All Combustion Air from Outdoors Through Horizontal Ducts 1.8 One Permanent Opening Method One permanent opening shall be provided, commencing within 12 inches (300 mm) of the top of the enclosure. The appliance shall have clearances of at least 1 inches (25 mm) from the sides and back of the appliance, and a clearance of 6 inches (150 mm) from the front.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide Figure 6: All Combustion Air from Outdoors Through Single Combustion Air Opening 1.9 Opening a Louver Through the Benchmark Boiler A louver can be opened using the auxiliary relay contacts of the Benchmark boiler. These contacts are provided by a single pole double throw (SPDT) relay that is energized when there is a demand for heat and is de-energized after that demand is satisfied.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S If an AERCO Boiler Management System II (BMS II) is being used to manage a multiple boiler installation, the louver can be opened using the System Start Relay of the BMS II. Refer to the BMS II Operations and Maintenance Manual, GF-124, for wiring connections and further details. 1.10 Direct Vent/Ducted Combustion Air The Benchmark is approved for direct vent installation; i.e.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S The pressure drop values used in Table 1a are in equivalent feet of 6-inch diameter exhaust vent. Note that 1 equivalent foot of 6-inch diameter vent is equal to 0.00581-inch W.C. 1.12 Gross Natural Draft Flue gases have a lower density (and are lighter) than air and will rise, creating "gross natural draft." Gross natural draft is created when flue gases exit the vent at an elevation above the Benchmark boiler.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S 1.16 Manifolded Systems In many instances it may be practical to connect multiple units using a manifolded vent or exhaust configuration. However, when multiple units are connected by a manifolded air intake or exhaust vent, the operation of a given unit can be affected by the others, if the venting or combustion air system is not designed properly.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide Figure 7: Muffler Adapter Kits for BMK 750 & BMK 1000 Using PVC Pipe Exhaust Venting Contact your local AERCO sales representative for more information on the AERCO exhaust muffler and air inlet attenuator. 1.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S A ¼-inch NPT combustion test hole is provided on each unit’s exhaust manifold connection (See Figures 8a, 8b, 8c and 8d). A 24-inch length of straight vent is recommended downstream of the exhaust manifold, as illustrated in these figures. The vent system should always be pitched up ¼ inch per foot of run towards the vent termination to enable condensate to drain back to the unit for disposal.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide AIR INLET 8” DIAMETER MINIMUM Figure 8b: Ducted Combustion Connection for BMK 1500 & BMK 2000 Boilers ALTERNATE 8” MINIMUM AIR INLET, 1 EACH SIDE (ONLY ON BMK 2500/3000) AIR INLET 6” DIAMETER MINIMUM Figure 8c: Ducted Combustion Connection for a BMK 2500 & BMK 3000 Boiler Page 18 of 40 AERCO International, Inc. • 100 Oritani Dr.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S AIR INLET 14” DIAMETER MINIMUM MIN. 24” STRAIGHT VENT STARTER VENT STARTER SECTION ANALYZER PROBE PORT BOILER BODY BOILER BODY Figure 8d: Ducted Combustion Connection for a BMK 6000 Boiler MIN.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide MIN. 24” STRAIGHT VENT STARTER VENT STARTER SECTION ANALYZER PROBE PORT BOILER BODY BOILER BODY TAG-0022_0S MIN. 24” STRAIGHT VENT STARTER CONDENSATE DRAIN EXHAUST MANIFOLD VENT STARTER SECTION ANALYZER PROBE PORT CONDENSATE DRAIN EXHAUST MANIFOLD Figure 9b: Vent Starter Section – Left Side View BMK 2500 & BMK 3000 (Left) & BMK 6000 (Right) 1.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S manifold to a floor drain. Condensate manifolds must be large enough to handle the anticipated flow and must be properly secured and protected. Manifolds are generally located behind the boilers so that short runs of plastic tubing into the manifold can be used for the condensate drain. A base drain must be installed at the bottom of vertical common flue piping.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S 1.21.1 BMK 1500 Example: Calculate the maximum pressure drop for a single boiler installation at 500 feet above sea level having a winter design temperature of 20°F.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S 1.22 Manifolded Ducted Combustion Air For systems using manifolded ducted combustion ductwork, use the longest length of common duct and the individual branch to the furthest boiler to calculate the pressure drop. 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.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide 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 direction, as determined by the system designer and site conditions. Figure 10b: Individual Vents – Acceptable Installations Page 24 of 40 AERCO International, Inc. • 100 Oritani Dr.
Benchmark Series Boilers Venting and Combustion Application Guide GF-2050 TAG-0022_0S 1.23 Common Vent Breeching (Manifolded) AERCO forced draft boilers are designed for application in common vent systems. Contact your AERCO sales representative or AERCO International for design assistance and approval when designing manifolded exhaust vent systems. Connections to common vent breeching or duct work must be accomplished with a 45° elbow in the direction of flow in the main breeching.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide Figure 12 illustrates the preferable “transition vent section” when making the 45° connection into a main. The main can also remain at one diameter, as long as it is sized for the total number of units vented and the 45° branch connection is retained. Use of the recommended “transition” assembly will reduce the overall system pressure drop.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S 1.24 Pressure Drop and Draft Data Tables Table 1a: Discharge Flue Vent Pressure Drop (Eq. Ft.) for Single BMK 750 Boiler (Assuming 180°F Water Temperature and 20°F Rise at Sea Level) Flue Vent (in. Dia.) Flue Velocity (ft/sec) Straight Run (eq. ft / foot) 90° elbow (eq. ft) 45° elbow (eq. ft) Exit Loss Horiz. Term. (eq. ft) Exit Loss Rain Cap (eq. ft) 6 8 10 12 14 16.65 9.37 5.99 4.16 3.06 0.45 0.11 0.04 0.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 1d: Discharge Venting Pressure Drop for Single BMK 2000 Boiler (Assuming 180ºF Water Temperature and 20ºF Rise at Sea Level) Flue Vent (in. Dia.) Flue Velocity (ft/sec) Straight Run (eq. ft / foot) 90° elbow (eq. ft) 45° elbow (eq. ft) Exit Loss Horiz. Term. (eq. ft) Exit Loss Rain Cap (eq. ft) 8 10 12 14 16 18 26.35 16.87 11.71 8.60 6.59 5.21 0.71 0.23 0.09 0.04 0.02 0.01 5.86 2.08 0.91 0.46 0.25 0.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 2a: Ducted Combustion Air Duct Pressure Drop (Eq. Ft.) for BMK 750 Boiler Outside Air Temperature (°F) Inlet Duct & No. Boilers Duct Section Type -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F 100 °F 120 °F 6" Duct Single Boiler Straight Run 90° Elbow 45° Elbow 0.27 1.18 0.87 0.27 1.23 0.91 0.28 1.29 0.96 0.29 1.38 1.02 0.30 1.47 1.09 0.31 1.57 1.16 0.32 1.68 1.24 0.33 1.79 1.32 0.34 1.91 1.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 2b: Ducted Combustion Air Duct Pressure Drop (Eq. Ft.) for BMK 1000 Boiler Outside Air Temperature (°F) Inlet Duct & No. Boilers 6" Duct Single Boiler 8" Duct Single Boiler 8" Duct Two Boilers 10" Duct Two Boilers 10" Duct Three Boilers 12" Duct Three Boilers 12" Duct Four Boilers 14" Duct Four Boilers NOTES: Duct Section Type Straight Run 90° Elbow 45° Elbow Ent. Loss Straight Run 90° Elbow 45° Elbow Ent.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 2c: Ducted Combustion Air Duct Pressure Drop (Eq. Ft.) for BMK 1500 Boiler Outside Air Temperature (°F) Inlet Duct & No.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 2d: Ducted Combustion Air Duct Pressure Drop for BMK 2000 Boiler Outside Air Temperature (°F) Inlet Duct & No. Boilers Duct Section Type -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F 100 °F 120 °F 8" Duct Single Boiler Straight Run 90° Elbow 45° Elbow Ent. Loss 0.40 2.13 1.61 4.12 0.41 2.24 1.69 4.32 0.42 2.35 1.77 4.54 0.43 2.51 1.89 4.84 0.44 2.67 2.02 5.16 0.46 2.85 2.15 5.51 0.47 3.04 2.29 5.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 2e: Ducted Combustion Air Duct Pressure Drop for BMK 2500 Boiler Outside Air Temperature (°F) Inlet Duct & No. Boilers Duct Section Type -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F 100 °F 120 °F 8" Duct Single Boiler Straight Run 90° Elbow 45° Elbow Ent. Loss 0.40 2.13 1.61 4.12 0.41 2.24 1.69 4.32 0.42 2.35 1.77 4.54 0.43 2.51 1.89 4.84 0.44 2.67 2.02 5.16 0.46 2.85 2.15 5.51 0.47 3.04 2.29 5.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 2f: Ducted Combustion Air Duct Pressure Drop (Eq. Ft.) for BMK 3000 MMBTU Boiler Outside Air Temperature (°F) Inlet Duct & Duct Section No.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 2g: Ducted Combustion Air Duct Pressure Drop for BMK 6000 MMBTU Boiler Outside Air Temperature (°F) Inlet Duct & No. Boilers Duct Section Type -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F 100 °F 120 °F Straight Run 90° Elbow 45° Elbow Ent. Loss Straight Run 90° Elbow 45° Elbow Ent. Loss Straight Run 90° Elbow 45° Elbow Ent. Loss Straight Run 90° Elbow 45° Elbow Ent.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 3a- Part 1: Gross Natural Draft (Inch W.C.) for BMK 1000 & BMK 750 Low NOx Boilers Outside Air Temperature (°F) Stack Height (ft) -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F 100 °F 120 °F 5 10 15 20 25 30 35 40 45 50 75 100 125 150 175 200 0.024 0.048 0.072 0.096 0.120 0.144 0.168 0.193 0.217 0.241 0.361 0.481 0.602 0.722 0.842 0.963 0.022 0.045 0.067 0.089 0.112 0.134 0.156 0.179 0.201 0.223 0.335 0.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 3b-Part 1: Gross Natural Draft (Inch W.C.) for BMK 1500, BMK 2000, BMK 2500, BMK 3000 Low NOx Boilers Outside Air Temperature (°F) Stack Height (ft) -30°F -15°F 0°F 20°F 40°F 60°F 80°F 100°F 120°F 5 10 15 20 25 30 35 40 45 50 75 100 125 150 175 200 0.024 0.048 0.072 0.096 0.120 0.144 0.168 0.193 0.217 0.241 0.361 0.481 0.602 0.722 0.842 0.963 0.022 0.045 0.067 0.089 0.112 0.134 0.156 0.179 0.201 0.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 3c-Part 1: Gross Natural Draft (Inch W.C.) for BMK 6000 Low NOx Boilers Outside Air Design Temperature (°F) Stack Height (ft) -30 °F -15 °F 0 °F 20 °F 40 °F 60 °F 80 °F 100 °F 120 °F 5 10 15 20 25 30 35 40 45 50 75 100 125 150 175 200 0.024 0.048 0.072 0.096 0.120 0.144 0.168 0.193 0.217 0.241 0.361 0.481 0.602 0.722 0.842 0.963 0.022 0.045 0.067 0.089 0.112 0.134 0.156 0.179 0.201 0.223 0.335 0.447 0.
GF-2050 Benchmark Series Boilers Venting and Combustion Application Guide TAG-0022_0S Table 4: Altitude Correction Site Elevation (feet above sea level) Altitude Correction Factor (CF) 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 1 0.982 0.964 0.947 0.930 0.913 0.896 0.880 0.864 0.848 0.832 0.817 0.801 0.787 0.772 0.758 0.743 0.729 0.715 0.701 0.688 Table 5: Round Duct of Identical Pressure Drop to Rectangular Duct Adjacent Side of Duct (in.
GF-2050 TAG-0022_0S Benchmark Series Boilers Venting and Combustion Application Guide Change Log: Date 11/19/2013 12/03/2013 Description Rev R: Changed references to “Sealed combustion” to “ducted combustion air”. Also added section 1.13 “Acceptable Pressure Range” to page 14. Rev S: Corrected calculation in section 1.21.1 to read: 2 X 13.11 = 26.22 Changed By Curtis Harvey Chris Blair © AERCO International, Inc., 2013 Page 40 of 40 AERCO International, Inc. • 100 Oritani Dr.
Benchmark Series Boilers GF-2060 Electrical Power Guide TAG-0048_0I ELECTRICAL POWER GUIDE Natural Gas, Propane Gas, or Dual Fuel Fired Modulating, Condensing Boilers Benchmark Series Gas-Fired Boilers For models: BMK 750 to BMK 6000 Benchmark 2500/3000 Power Wiring Last Update: 11/08/2013 AERCO International, Inc. • 100 Oritani Dr.
GF-2060 TAG-0048_0I Benchmark Series Boilers Electrical Power Guide Technical Support: (Mon–Fri, 8am-5pm EST) 1-800-526-0288 www.aerco.com Disclaimer 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.
GF-2060 Benchmark Series Boilers Electrical Power Guide TAG-0048_0I GENERAL Benchmark (BMK) Gas Fired Boilers are fully factory wired packaged units which require simple external power wiring as part of the installation (Diagram 1). This technical guide is intended to help designers provide electrical power wiring (line voltage) to Benchmark units. Control wiring details are provided in other publications, depending upon unit application.
GF-2060 Benchmark Series Boilers Electrical Power Guide TAG-0048_0I TRANSFORMER FUSE BLOCKS TERMINAL BLOCKS POWER BREAKER 12V POWER SUPPLY Diagram 2: Power Box Connections for BMK 1500/2000/2500/3000/6000 FUSE BLOCKS POWER BREAKER 120V OUTPUT, 6 AMP MAXIMUM 12V POWER SUPPLY TERMINAL BLOCKS TRANSFORMER Diagram 3: Power Box Connections for BMK 750/1000 Page 4 of 8 AERCO International, Inc. • 100 Oritani Dr.
Benchmark Series Boilers GF-2060 Electrical Power Guide TAG-0048_0I Provisions for Service Designers must provide emergency shutoffs and other devices to satisfy electrical codes. It is also recommended to provide an electrical shutoff disconnect switch of suitable load carrying characteristics on or near each BMK boiler. No electrical boxes or field components should be mounted to the surface of the boiler or where they would interfere with the removal of the side or top panels for maintenance.
GF-2060 TAG-0048_0I Benchmark Series Boilers Electrical Power Guide Diagram 5: BMK 2500/3000: 208-230/3∅/60 Wiring Schematic- 5 Wire Diagram 6: BMK 6000: 208/3∅/60 Wiring Schematic- 4 Wire Diagram 7: BMK 2500/3000: 460/3∅/60 Wiring Schematic- 4 Wire Page 6 of 8 AERCO International, Inc. • 100 Oritani Dr.
Benchmark Series Boilers GF-2060 Electrical Power Guide 3 POLE 20 AMP CIRCUIT BREAKER TAG-0048_0I DISCONNECT SWITCH 3 POLE 20 AMP Diagram 8: BMK 6000: 460/3∅/60 Wiring Schematic- 4 Wire PRI 11/08/2013 AERCO International, Inc. • 100 Oritani Dr.
GF-2060 Benchmark Series Boilers Electrical Power Guide TAG-0048_0I Change Log Date Description Changed By 05/15/2013 Rev G: Changed all references to BMK 6000 208-230 volts to 208 volts only, pages 3 & 4. Chris Blair 09/12/2013 Rev H: Removed all ref. to BMK 1.5, 2.0, 3.0. Added 750/1000/1500/2500 refs. Removed 1.5/2.0 wiring diag. and added 750/1000 wiring diag. Revised elec. safety switch loc. drawing to BMK6000.
