WATER HEATER THERMAL EXPANSION TANKS

1 1 Owner s ManualKEEP THIS MANUAL FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS : 2 - 5 Gallon CapacityThank You for purchasing this THERMAL EXPANSION Tank. Properly installed and maintained, it should give you years of trouble free 0615 332845-000 WATER HEATER THERMAL EXPANSION TANKS Safety Instructions Installation Maintenance Warranty2 GENERAL SAFETYSAFE INSTALLATION USE AND SERVICEYour safety and the safety of others is extremely important in the installation, use and servicing of this EXPANSION safety-related messages and instructions have been provided in this manual and on your own EXPANSION tank to warn you and others of a potential injury hazard.

2 Read and obey all safety messages and instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others who install, use or service this EXPANSION safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message and how to avoid the risk of indicates an imminentlyhazardous situation which, if not avoided,will result in injury or is the safety alert symbol. It is used to alert you topotential personal injury hazards. Obey all safetymessages that follow this symbol to avoid possibleinjury or indicates a potentially hazardoussituation which, if not avoided, could resultin injury or indicates a potentially hazardoussituation which, if not avoided, could result inminor or moderate used without the safety alertsymbol indicates a potentially hazardoussituation which, if not avoided, could result inproperty INSTALLATION, COMMISSIONING,SERVICE AND MAINTENANCE REQUIRED3 TABLE OF CONTENTSSAFE INSTALLATION USE AND OF CONTENTS.

3 3 SPECIFICATIONS ..3 IMPORTANT INSTRUCTIONS BEFORE INSTALLATION ..4 SPECIFICATIONSEXPANSION TANKS FOR HOT WATER HEATERSMany local codes require back flow preventers. Since this seals off the system an EXPANSION tank is required or the relief valve will discharge on every heating cycle. THERMAL EXPANSION TANKS eliminate this wasteful, costly and dangerous practice. The THERMAL EXPANSION tank is certified to NSF/ANSI-61 DHOT (140 F) and pressures to 150 PSI. DO NOT USE A STANDARD TANK. The sizing chart will allow you to choose the correct size EXPANSION tank for your OF EXPANSION TANKSWhen WATER is heated it expands. Provision must be made for this EXPANSION in a closed hot WATER system. This precharged diaphragm tank stores the expanded hot WATER then returns WATER to the system when the temperature HEATERCOLD WATERINLET FITTINGRECOMMENDED INSTALLATION - VERTICAL MOUNTINGPRESSURE REDUCINGVALVE WITH BY-PASSPRESSUREGAUGEINLETCOLD WATERSHUT-OFFCOLDHOTEXPANSIONTANKTANK SPECIFICATIONS2 Gallon5 GallonCAPACITY IN PRESSURE IN PSI3838 DIMENSIONS A DIMENSIONS C DISCHARGE CONNECTION E 3/4 NPT3/4 THE NEW EXPANSION TANK.

4 5 INSTALLING THE EXPANSION TANK ..5 MAINTENANCE ..6 WARRANTY ..7 EXPANSION TANK SIZING CHARTA ssumed 140 Max. Temp and 150 PSI Max. TANK NEEDEDINCOMING WATER PRESSUREWATER HEATER CAPACITY (GALLONS)304050668010012040 psi2 GAL2 GAL2 GAL2 GAL5 GAL5 GAL5 GAL50 psi2 GAL2 GAL2 GAL2 GAL5 GAL5 GAL5 GAL60 psi2 GAL2 GAL2 GAL5 GAL5 GAL5 GAL5 GAL70 psi*2 GAL2 GAL2 GAL5 GAL5 GAL5 GAL5 GAL80 psi*2 GAL2 GAL2 GAL5 GAL5 GAL5 GAL5 GAL* Use a pressure reducing valve for regulating inlet pressure at 60 psi4 BEFORE INSTALLATION1. Be sure installation meets all local plumbing If you are not thoroughly familiar with plumbing and safety practices, consult your local store for further The WATER HEATER temperature-pressure relief valve must be checked for proper operation and replaced if found to be checking the temperature-pressure relief valve operations, make sure that (1) no one is in front of or around the outlet of the temperature-pressure relief valve discharge line, and (2) the WATER manually discharged will not cause any property damage or bodily injury.

5 The WATER may be extremely after manually operating the valve, it fails to completely reset and continues to release WATER , immediately close the cold WATER inlet to the WATER HEATER , follow draining instructions and replace the temperature-pressure relief valve with a new read and follow additional information found in the WATER HEATER manual concerning the temperature-pressure relief Read this owner s manual and the installation rules carefully. If you do not follow the safety rules, the EXPANSION tank will not IMPORTANT INSTRUCTIONS BEFORE INSTALLATION operate properly. It could cause DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY If incoming WATER pressure to the home exceeds 80 psi, a pressure reducing valve will be required. Recommended inlet WATER pressure is 60 psi or In order to determine incoming WATER pressure and for proper adjustment of the pressure reducing valve, a pressure gauge must be installed between the pressure reducing valve and EXPANSION The complete piping system, including EXPANSION tank and pressure reducing valve, MUST be protected against below freezing temperatures.

6 Failure to do so could cause severe WATER To safeguard against a possible dangerous malfunction of the EXPANSION tank, review the installation instructions before putting the WATER supply system back into hydro-pneumatic tank is designed and intended for hot or cold WATER storage at a maximum pressure of 150 per square inch gauge (150 PSIG). Any use other than WATER or at a sustained or instantaneous pressure in excess of 150 PSIG is UNSAFE. A pressure relief valve of adequate size must be incorporated in the WATER HEATER system. This EXPANSION tank, as all TANKS , will eventually leak. Do not install without adequate drainage provisions where WATER leakage will cause damage. Failure to follow these instructions can cause an explosion and result in SERIOUS OR FATAL INJURY. The manufacturer of this tank does not accept any liability or other responsibility for personal injury or property damage resulting from improper use, installation, or operation of this tank, or of the system of which it is a THE NEW EXPANSION TANKFACTS TO CONSIDER ABOUT THE LOCATION1.

7 The location selected should be indoors in an area not subject to The items which should be installed in sequence in the cold WATER line are (1) the EXPANSION TANK must be installed at least 18 inches away from the cold WATER inlet fitting on the WATER HEATER , (2) the PRESSURE GAUGE, and (3) the PRESSURE REDUCING VALVE, if required, see Figure The EXPANSION tank is designed to be supported by the system piping in the vertical The EXPANSION tank, pipes and your connections may, in time leak. Put the EXPANSION tank in a place where a WATER leak will not damage anything. The EXPANSION tank should be located in an area where WATER leakage from the tank or connections will not result in damage to the area around the EXPANSION tank or to the lower floors of the Ensure that access to the installation area is restricted. Do not install where children are present or may be HEATERCOLD WATERINLET FITTINGRECOMMENDED INSTALLATION - VERTICAL MOUNTING(3)PRESSURE REDUCINGVALVE WITH BY-PASS(2)PRESSUREGAUGEINLETCOLD WATERSHUT-OFFCOLDHOT(1)EXPANSIONTANKFIGU RE THE EXPANSION TANKWATER PIPINGThis EXPANSION tank is designed for operation on the inlet cold WATER line and is limited to a maximum working pressure of 150 pounds per square inch (psi) is rated to NSF/ANSI-61 DHOT (140 F).

8 The continuous temperature on the tank cannot exceed 140 1 above shows the correct valves and fittings that you will need to install your EXPANSION tank. A threaded (3/4 ) WATER connection is supplied on the tank THE INSTALLATION INSTRUCTIONS FOUND IN THE PACKAGING OF THE PRESSURE REDUCING VALVE AND PRESSURE The WATER supply and power (electricity or gas) must be shut off during the installation of the valves and EXPANSION tank. Follow the instructions found on the WATER HEATER and in the owner s Install EXPANSION tank, pressure gauge and pressure reducing valve, if required, as shown above in Figure After installing the EXPANSION tank and valves it will be necessary to expel all air from the piping. Turn the cold WATER inlet shut-off valve ON . To purge the air, open a faucet and wait until a steady stream of WATER is coming from the faucet.

9 At this time, close the WATER PRESSURE 1. Recommended inlet WATER pressure is 60 psi or Refer to the pressure gauge. Using the adjusting screw on the pressure reducing valve, increase or decrease the pressure as indicated on the Open a nearby faucet allowing WATER to run briefly and then close the faucet. Check pressure gauge again and made additional screw adjustments as necessary. It may be necessary to repeat this procedure several times before the pressure can be adjusted to 60 psi or EXPANSION TANK AIR CHARGE1. Shut off main cold WATER supply Open a nearby faucet allowing WATER to run until it stops. This indicates the pressure has been Using a tire gauge, check the EXPANSION tank s pre-charge pressure (38 psi). THE EXPANSION TANK AIR CHARGE MUST BE ADJUSTED TO MATCH THE INCOMING WATER PRESSURE. If the air charge pressure needs to be adjusted upward, use only a manual type tire pump to increase the pressure.

10 If the air charge needs to be reduced, depress the valve core to release It is important that you read your city system pressure correctly. If you read it when it is already hot and expanded you will get false readings. If you have a pressure gauge in your line, you should open one hot WATER valve and let the WATER run for 15 minutes to reduce the line pressure, then shut the valve off and then read the pressure immediately. If you don t have a pressure gauge in your 6 MAINTENANCEWATER HEATER TEMPERATURE-PRESSURERELIEF VALVEDANGER Burn hazard. Hot WATER discharge. Keep clear of Temperature- Pressure Relief Valve discharge Temperature-Pressure Relief Valve on the WATER HEATER must be manually operated at least once a checking the Temperature-Pressure Relief Valve operation, make sure that (1) no one is in front of or around the outlet of the Temperature-Pressure Relief Valve discharge line, and (2) that the WATER discharge will not cause any property damage, as the WATER may be extremely hot.