Amtrol 35-LBC User's Manual
Contents
1. EXTROL LBC SERIES PRESSURIZED EXPANSION TANKS ASME INSTALLATION amp OPERATION INSTRUCTIONS A AMTROL Models 35 LBC through 600 LBC NOTE Inspect for shipping damage and notify freight carrier or store where purchased immediately if damage is present To avoid risk of personal injury and property damage if the product appears to be malfunctioning or shows signs of corrosion call a qualified professional immediately Current copies of the Product manual can be viewed at www amtrol com Use proper safety equipment when installing HAZARDS OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL A THIS IS THE SAFETY ALERT SYMBOL IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER INJURY AS WELL AS PROPERTY DAMAGE READ CAREFULLY THE PRODUCT WARNING INSTALLATION amp OPERATION INSTRUCTIONS FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND OR PROPERTY DAMAGE AND WILL VOID THE PRODUCT WARRANTY THIS PRODUCT MUST BE INSTALLED BY A QUALIFIED PROFESSIONAL FOLLOW ALL APPLICABLE LOCAL AND STATE CODES AND REGULATIONS IN THE ABSENCE OF SUCH CODES FOLLOW THE CURRENT EDITIONS OF THE NATIONAL PLUMBING CODE AND NATIONAL ELECTRIC CODE AS APPLICABLE EXPLOSION OR RUPTURE HAZARD THE WARNING EXPANSION TANK MUST BE OPERATED SO THAT THE PRESSURE DOES NOT EXCEED THE MAXIMUM WORKING PRESSURE CALIFORNIA PROPOSITION 65 WARNING2. This product contains a chemical known by the State of California to cause cancer and to cause birth defects or other reproductive harm California Installer Contractor California law requires that this notice be given to consumer end user of this product For more information www amtrol com prop65 html EXPLOSION OR RUPTURE HAZARD A relief A WARNING valve must be installed to prevent pressure in excess of local code requirement or maximum working pressure designated in the Product Manual whichever is less Do not expose Product to freezing temperatures or temperatures in excess of 240 F Do not adjust the pre charge or re pressure this Product except for any adjustments required at the time of initial installation especially if Product corroded damaged or with diminished integrity Adjustments to pre charge must be done at ambient temperature only Failure to properly size the Product or follow these instructions may result in excessive strain on the system lead to Product failure serious or fatal personal injury leakage and or property damage Potable Water and Radiant Heating Warning A WARNING This Product must not be used in radiant heating potable water or open systems of any kind These systems contain oxygenated water which will cause internal corrosion and premature Product failure Use a Therm X Trol for potable water systems and a Radiant Extrol for radiant heating systems Mount vertically only Do not install on dead end
3. and turn on the heat source g Relock the lock shield valve Firing Rate Length of Pipe Connecting of Boiler Tank to System MBTU H Below 11 11 30 31 100 2 000 Mo 3 4 4 4 000 3 4 1 11 4 8 000 1 11 4 172 12 000 11 4 172 2 16 000 11 4 2 21 2 20 000 11 2 2 2 Warranty LBC Series Models One 1 Year Limited Warranty Visit www amtrol com for complete warranty details Suggested Piping Diagram AMTROL AIR ELIMINATOR RETURN AMTROL AIR SEPARATOR ISOLATION VALVE AMTROL AUTOMATIC FILL VALVE AMTROL EXTROL TREFLOW way VALVE TANK p Cur SUCTION FONE s DIFFUSER Alternate Piping Diagrams ALTERNATE AIR SEPARATOR LOCATION RETURN eI HIGH POINT IN SYSTEM POINT OF LOWEST SOLUBILITY AMTROL AIR ELIMINATOR AMTROL AIR SEPARATOR ISOLATION VALVE AUTOMATIC FILL VALVE TRI FLOW gt AMTROL AMTROL VALVE EXTROL EXTROL TANK TANK SUCTION PUMP gt DIFFUSER PHCC O08 4 PLUMBING HEATING CODLING CONTRACTORS ASSOCIATION 2014 AMTROL Inc 2 AMTROL 1400 Division Road West Warwick RI USA 02893 800 426 8765 800 293 1519 www amtrol com A Mark of the EL Originator MADE IN USA Part 9017 095 01 14
4. pipe PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY IMPORTANT GENERAL SAFETY INFORMATION ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS A WARNING EXPLOSION HAZARD Failure to follow instructions in the accompanying product manual can cause rupture or explosion possibly causing serious or fatal injury leaking or flooding and or property damage FAILURE TO PROPERLY SEAL VALVE CAP A WARNING WILL RESULT IN LOSS OF PRECHARGE CAUSING PRODUCT TO FAIL Location of EXTROL Expansion Tanks A WARNING This Product like most Products under pressure may over time corrode weaken and burst or explode causing serious or fatal injury leaking or flooding and or property damage To minimize risk a licensed professional must install and periodically inspect and service the Product A drip pan connected to an adequate drain must be installed if leaking or flooding could cause property damage Do not locate in an area where leaking could cause property damage to the area adjacent to the appliance or to lower floors of the structure The AMTROL expansion tank may be placed in any convenient position within the mechanical room or building If multiple tanks are installed they should all be on the same level Point of Connection Unlike a conventional tank the EXTROL sealed air cushion does not require replenishment so DO NOT connect to an air separator or other air collection device As with any expansion tank i
5. pre charge pressure needs to be changed on a dry system follow the following procedure a Check the expansion tank air pressures at the pre charge connection with an accurate tire type pressure gauge The pre charge connection is the same kind of connection found on automobile tires b If the pressure is low charge the tank with nitrogen gas or with oil free compressed air Check the pressure frequently during this process as you would when filling a tire with air DANGER Excessive pressure can cause tank to explode Exercise care when filling a tank with air so the pressure does not exceed that required or does not exceed the working pressure of the tank as stamped on the nameplate Failure to follow these instructions will result in serious personal injury or death and property damage 3 If after the system has been filled with water and operating it is found that the expansion tank pre charge must be changed use the following procedure a Turn off the heat source and allow the system water to cool to ambient temperature charged other than at ambient temperature IMPORTANT Expansion tank cannot be properly air b Close the lock shield valve in the tank to system piping c Open the drain valve to empty the water from the tank d Check the tank air pressure at the pre charge connection with an accurate tire type air gauge e Refer to 2b above f Close the drain valve open the lock shield valve
6. slightly above factory setting c Isolation valve needs to be shut Pre charge pressure of tank can now be increased to match system fill pressure e Open isolation valve and start up system Failure to follow these steps could result in damage to the bladder and void all warranties 5 After making sure the air charge is correct replace the valve cap the 1 1 2 plug over the air valve 6 The EXTROL may now be piped to the system use the suggested EXTROL piping diagrams on the next page 7 Using the table below select appropriate pipe size Connection to each EXTROL must have a lock shield gate valve and union to allow isolation and removal if required Make up and fill valves whether manual or automatic should be tied into the connecting line This will ensure that pump operation will not affect valve operation Operational Limits Maximum Operating Pressure As stamped on nameplate Maximum Operating Temperature 240 F Minimum Operating Temperature 35 F non glycol application If unit is being installed in a glycol system where minimum temperatures fall below 35 F contact the AMTROL technical service department at 401 535 1216 Operating Instructions 1 Check the expansion tank pre charge before the system is filled with water The charge is 12 psig unless noted otherwise on the tank label Check to make sure this is the correct pre charge pressure specified for the system 2 If the tank
7. t is recommended that the EXTROL be connected to the suction side of the pump This will prevent the pump head from becoming subtractive which may result in entry of air and vapor formation at high points in the system By connecting the EXTROL on the boiler return displacement of coolest System water into tank is ensured reducing energy waste Low pressure drop components such as air separators and boilers may be placed between point of connection and pump suction if desired System design will dictate the feasibility of this Natural convection losses and the entry of air into tanks are eliminated by connection to the side or underside of main pipe The piping should be pitched up and away from the EXTROL to eliminate any potential air traps Installation THIS PRODUCT MUST BE INSTALLED BY A A WARNING QUALIFIED PROFESSIONAL Note location of system connection air charge valve and drain connection on tank 2 Remove the plug or pipe cap from the system connection 3 Remove the 1 1 2 NPT plug covering the air charge valve 4 Before making any connection to the tank check the tank and air charge use an accurate pressure gauge The air pressure must be equal to the minimum system pressure at the tank location IMPORTANT If increasing pre charge pressure above 55 psig the following steps must be followed a Tank must be connected to the system with the isolation valve open b System must be pressurized to 13 14 psig
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