536906 1 Amtrol St 5 Therm X Trol Brochure User Manual
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User Manual: Pump 536906 1 Amtrol St-5 Therm-X-Trol Brochure
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THERM-X-TROL ® THERMAL EXPANSION ABSORBERS The Best Solution for Controlling Thermal Expansion n On As See THERM-X-TROL® Expansion Tanks Table of Contents THERM-X-TROL® Expansion Tanks.......... 2 What is Thermal Expansion?..................... 2 THERM-X-TROL®: The Market Leader...... 3 Pressure Increase in Closed Piping System. 4 Precise Sizing Procedure.......................... 5 ASME Thermal-X-Trol®.............................. 6 Non-ASME Thermal-X-Trol®...................... 7 Quick Sizing............................................... 8 What Is Thermal Expansion? With modern plumbing codes mandating backflow prevention, thermal expansion can cause pressure buildup in domestic water systems. When demand is put upon a potable water system, hot water is drawn from the water heater. Cold water from the supply line enters the water heater to replenish it. The cold water is heated to replace the hot water used. With the installation of a backflow preventer, check valve or pressure reducing valve on the supply line, the water heater and the system piping form a closed plumbing system under pressure. As the water is heated, thermal expansion occurs. Pressure increases until the relief valve opens and the expanded water spills from the water heater. This spillage results in wasted energy and a potential safety hazard. (See Diagram 1) Closed Potable Hot Water System without THERM-X-TROL® Backflow preventer, pressure reducing valve or other one-way device causes expanded (heated) water to build pressure causing the relief valve to open resulting in… • Wasted energy • Shortened water heater life • Wasted municipal water and sewer dollars • Potential safety hazard Unsafe pressure increases without THERM-X-TROL® Fixture Closed Backflow Preventor Cold Water Supply SPILL The THERM-X-TROL® is designed to eliminate this problem by providing control of maximum pressures at a level below the relief valve setting. It also provides an additional space in the system to accommodate the increased volume of water created by thermal expansion, returning it to the system when hot water delivery is demanded. Maximum pressure is kept well below the relief valve setting by the THERM-X-TROL®, with its pre-charged air cushion that is separated from system water. The relief valve does not open, therefore spillage is eliminated (Diagram 2). Closed Potable Hot Water System with THERM-X-TROL® Expanded (heated) water is absorbed by THERM-X-TROL® which means… • Water heater and fixtures are protected • Eliminates energy and water waste, saving money • No dangerous pressure build up in the system • Relief valves will not open • Potential safety hazard reduced 2 Diagram 1 Cold Water Supply Backflow Preventor THERM-X-TROL® THERM-X-TROL®: The Market Leader • #1 choice of Professional Installers • Safest and most cost effective way to control Thermal Expansion • Easy to install • The innovator of Thermal Expansion Control in Closed Potable Hot Water Systems • Broadest line of sizes and models • Recognized Industry leader in Quality, Design, Manufacturing, Delivery and Service • Extensive Network of Plumbing & Heating Distributors • First to obtain NSF/ANSI 61, IAPMO, SBCCI & City of Los Angeles listings • First to offer 5 year limited warranty Product Features High-grade connector Deep Drawn Steel Domes for maximum strength & pressure rating Rigid Polypropylene Liner for corrosion resistant reservoir Butyl diaphragm for long life expectancy Diaphragm Hoop Ring mechanically grooved for permanent air-tight seal Welded Steel Construction Welded Air Charge Fitting with protective plastic cap for corrosion resistance and maximum air-tight seal 3 Pressure Increase in Closed Piping System P R E S S U R E P S I G 600 500 400 WATER 300 200 100 0 65 70 75 80 85 TEMPERATURE - °F 4 90 95 100 Precise Sizing Procedure - For Special Applications The procedure for sizing the Therm-X-Trol® for any application depends on four (4) vital pieces of information: 1. ASME or non-ASME requirement 2 Calculated thermally expanded water volume 3. Minimum water pressure experienced at the tank location Critical Sizing AMTROL® Therm-X-Trol® 1. Total Water Heater Volume (Gallons) 2. Water Expansion Factor (Table I) 3. Calculate Expanded Water (Gallons) (Line 1 x Line 2) 4. Design Pressure Factor (Table II) 5. Therm-X-Trol Volume Required (Gallons) (Line 3 x Line 4) 6. Select Therm-X-Trol® Model (pg. 6 & 7) 4. Maximum water pressure allowable at the tank location Critical Sizing AMTROL® Therm-X-Trol®: EXAMPLE The tank required for any application can be sized with the following equation: Tv = Design Pressure Factor X expanded water Where Tv is the total Thermal-X-Trol® volume required in gallons. 1. Total Water Heater Volume (Gallons) 2. Water Expansion Factor (Table I) 3. Calculate Expanded Water (Gallons) (Line 1 x Line 2) = (240 x .0179) 4. Design Pressure Factor (Table II) 5. Therm-X-Trol Volume Required (Gallons) (Line 3 x Line 4) = (4.3 x 2.1) 6. Select Therm-X-Trol® Model (pg. 6 & 7) 240 0.0179 4.3 2.1 9.0 ST-25V ST30V-C Note: The Therm-X-Trol® air pressure should be equal to static line pressure. Example: A 240 gallon water heater with a 150°F aquastat setting is installed with a 125 psi maximum pressure requirement. For a static supply line pressure of 60 psi, what Therm-X-Trol® model is required for critical protection? TABLE I Expansion Factor Operating (Design) Temperature of Water Heater (Tank) 100˚F 120˚F 130˚F 140˚F 150˚F 160˚F 170˚F 180˚F * Based on the initial temperature of 40˚F Expansion Factor* (Percentage of Water Volume Increase) 0.0062 0.6% 0.0100 1.0% 0.0124 1.2% 0.0150 1.5% 0.0179 1.8% 0.0209 2.0% 0.0242 2.4% 0.0276 2.8% For conditions not shown in table, use equation: DPF= Max. Allow. Pressure + 14.7 Max. Allow. Pressure - Line Pressure TABLE II Design Pressure Factor: DPF Maximum Allowable Pressure 100 125 150 Line Pressure psi 40 50 60 70 80 40 50 60 70 80 40 50 60 70 80 Design Pressure Factor (DPF) 1.9 2.3 2.9 3.8 5.7 1.6 1.9 2.1 2.5 3.1 1.5 1.6 1.8 2.1 2.4 5 ASME THERM-X-TROL® A Code Applications A • Commercial Water Heaters B B • Laundromats • Hospitals and Nursing Homes ST-5-C, ST-12-C • Car Washes ST-20V-C to ST-70V-C • Dishwashers A • Plant Washrooms • Hotels and Motels A • Restaurants B • Schools and Dormitories B • Other Applications as Required by Code ST-80V-C to ST-210V-C ST-447-C to ST-457-C THERM-X-TROL® ASME Specifications Model No. ST-5-C ST-12-C ST-20V-C ST-30V-C ST-42V-C ST-60V-C ST-70V-C ST-80V-C ST-120V-C ST-180V-C ST-210V-C ST-447-C ST-448-C ST-449-C ST-450-C ST-451-C ST-452-C ST-453-C ST-454-C ST-455-C ST-456-C ST-457-C Max. Working Pressure (PSIG) 150 150 150 150 150 150 150 150 150 150 150 125 125 125 125 125 125 125 125 125 125 125 Total Volume Maximum Diameter (Gals.) Acceptance Factor (A) 2.1 .42 10” 6.4 .50 12” 8.0 .40 12” 14.0 .64 16 1/4” 17.5 .64 16 1/4” 25.0 .45 16 1/4” 34.0 .33 16 1/4” 53.0 .64 24” 66.0 .51 24” 77.0 .44 24” 90.0 .38 24” 53.0 .65 24” 80.0 .65 24” 106.0 .65 24” 132.0 .65 24” 158.0 .65 30” 211.0 .65 30” 264.0 .65 36” 317.0 .65 36” 370.0 .65 36” 422.0 .65 48” 528.0 .65 48” Height (B) 10 3/8” 15 5/8” 19 1/2” 19 1/8” 24 1/4” 34” 45 3/4” 40 1/2” 47 3/4” 52 5/8” 60” 45 1/4” 59 1/8” 73 1/8” 86 5/8” 73 1/4” 91” 85 5/8” 98” 110 3/8” 81 7/8” 97 1/4” System Connection 3 /4” NPT 3 /4” NPT 3 /4” NPT 3 /4” NPT 3 /4” NPT 3 /4” NPT 3 /4” NPT 1 1/4” NPT 1 1/4” NPT 1 1/4” NPT 1 1/4” NPT 2” NPT 2” NPT 2” NPT 2” NPT 2” NPT 2” NPT 3” NPT 3” NPT 3” NPT 3” NPT 3” NPT Maximum Allowable Working Temperature: ST-5-C through ST-210V-C: 200°F; ST-447-C through ST-457-C: 240°F Standard Factory Precharge: 55 PSIG. 6 Ship Weight (lbs) 21 26 41 84 90 96 123 229 258 288 318 263 308 353 391 508 760 810 914 1,018 1,655 1,925 Non-ASME THERM-X-TROL® A General Usage • Residential Water Heaters B • Office Buildings • Apartment Buildings • Dormitories ST-5, ST-8, ST-12 • Elderly Housing A • Extended Care Facilities • Condominiums/Multiple Residential • Food Service • Laundromats B • Hospitals • Other General-Use Hot Water Systems ST-25V through ST-210V THERM-X-TROL® Non-ASME Specifications Model No. ST-5 ST-8 ST-12 ST-25V ST-30V ST-42V ST-60V ST-80V ST-180V ST-200V ST-210V ST-451 ST-452 ST-453 ST-454 ST-455 ST-456 ST-457 Total Volume Maximum (Gals.) Acceptance Factor 2.0 .45 3.2 .45 4.4 .55 10.3 1.0 14.0 .81 20.0 .57 34.0 .35 44.0 .77 62.0 .55 81.0 .41 86.0 .54 158.0 .65 211.0 .65 264.0 .65 317.0 .65 370.0 .65 422.0 .65 528.0 .65 Diameter (A) 8” 9” 11” 15 3/8” 15 3/8” 15 3/8” 22” 22” 22” 22” 26” 73 1/4” 91” 85 5/8” 98” 110 3/8” 81 7/8” 97 1/4” Height (B) 12 5/8” 15” 15” 19 1/4” 23 7/8” 31 5/8” 29 5/8” 36” 46 3/4” 56 3/8” 47 1/4” 30” 30” 36” 36” 36” 48” 48” System Connection 3 /4” NPT 3 /4” NPT 3 /4” NPT 3 /4” NPT 3 /4” NPT 3 /4” NPT 1 1/4” NPT 1 1/4” NPT 1 1/4” NPT 1 1/4” NPT 1 1/4” NPT 2” NPT 2” NPT 3” NPT 3” NPT 3” NPT 3” NPT 3” NPT Ship Weight (lbs) 5 7 9 23 25 33 61 69 92 103 123 508 760 810 914 1,018 1,655 1,925 Maximum Working Pressure: 150 PSI. All Models listed by NSF 61 (excluding ST-451 – ST-457); Maximum Allowable Working Temperature: ST-5 through ST-210V: 200°F; ST-451 through ST-457: 240°F; Standard Factory Precharge: 40 PSIG (ST-5 – ST-210V); 55 PSIG (ST-451 – ST-457) 7 THERM-X-TROL® THERM-X-TROL® The THERM-X-TROL® from AMTROL is designed to protect domestic water heaters from the effects of thermal expansion. Installation is easy; just tee it into the cold water inlet (before the water heater) as shown in Diagram 3. THERM-X-TROL® Quick-Sizing Chart Sizing Charts are based on 40°F incoming water temperature and a 150 psi T & P safety relief valve. BFP, Check or PRV CWS Outer Steel Shell Rigid Polypropylene Liner Hot Water Expanded Water Heavy Duty Butyl Diaphragm T&P Valve Water Heater Always adjust THERM-X-TROL® pre-charge to equal city water supply pressure. Diagram 3 If your Plumbing Code requires a Backflow Preventer,Check Valve or Pressure Reducing Valve... You Need a THERM-X-TROL® on Every Job! * For multiple heater, use the total volume of the heaters plus any storage tanks. ** Therm-X-Trol Precharge must be set to equal Static Supply Pressure prior to installation. Corporate Headquarters 1400 Division Road, West Warwick, RI USA 02893 Telephone: 401-884-6300 • Fax: 401-884-5276 w w w . a m t r o l . c o m AMTROL Canada, Ltd. 275 Shoemaker Street, Kitchener, Ontario N2E 3B3 Telephone: 519-478-1138 • Fax: 519-748-4231 The AMTROL® logo, AMTROL and Therm-X-Trol are registered trademarks of AMTROL Inc. and its affiliates in the US and elsewhere. AMTROL Inc. and it’s subsidiaries reserve the right to alter designs and specifications without prior notice. MC# 4090 (06/09) ©2009 AMTROL Inc. Printed in USA
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