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Pressurized Expansion Tanks (ASME)
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER'S USE.
SAFETY
INSTRUCTIONS
This safety alert symbol will be used in this manual to draw attention to
safety related instructions. When used, the safety alert symbol means
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A
SAFETY HAZARD.
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.
DESCRIPTION
Precharged Expansion Tanks contain either a bladder or a diaphragm
to separate the air charge from the system water. Tanks are designed
to absorb the expansion forces of heating/cooling system water while
maintaining proper system pressurization under varying operating
conditions.
INSTRUCTION MANUAL
NOT FOR USE IN DOMESTIC
(POTABLE) WATER SYSTEMS
DANGER: Series "B", "D", & "B-LA" are for use in closed loop
systems only. Domestic, potable or fresh water can cause serious
corrosion in a tank. This can result in leakage and a potential
explosion. Do not use for domestic, potable or fresh water. Failure
to follow this instruction will result in serious personal injury or
death and property damage.
OPERATIONAL LIMITS
Maximum Operating Pressure: 125 psi (or as stamped on nameplate)
Maximum Operating Temperature: 240ºF
Minimum Operating Temperature: 35°F (non-glycol application)
WARNING: Carefully read the Instruction Manual to avoid
serious personal injury and property hazards and to ensure
safe use and proper care of this product.
A01500J
18°F (glycol application)
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Summary of Contents for Xylem Bell & Gossett B Series
- Page 1 INSTRUCTION MANUAL A01500J Pressurized Expansion Tanks (ASME) INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE. SAFETY NOT FOR USE IN DOMESTIC INSTRUCTIONS (POTABLE) WATER SYSTEMS This safety alert symbol will be used in this manual to draw attention to DANGER: Series “B”, “D”, &...
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Page 2: Point Of Connection
POINT OF CONNECTION 4. In order to change the tank air charge pressure it is necessary to isolate the tank circuit from the main system piping. A high quality, gate type A. General or TPV, lock-shield valve must be used for this purpose. The lock- shield for the valve stem will eliminate tampering of this normally open The Series B and Series D tanks work equally well when installed in the valve during normal system operation. - Page 3 OPERATING INSTRUCTIONS 2. If only gas escapes, unscrew the air valve core and replace with a tire type/Schrader valve core. If liquid escaped refer 1. Check the expansion tank pre-charge before the system is filled with to 2b below. water. The charge is 40 psig unless noted otherwise on the tank label. 3.
- Page 4 FIGURE NOTES 1. Tank connection locations may vary depending on the type of tank to be installed. 2. Provide an anti-thermosyphon loop with a minimum drop of 12" to prevent gravity heating of the tank. 3. Figures 1 and 2 show where a tee would be located if multiple expansion tanks are installed. B &...
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Page 5: Piping Diagrams
PIPING DIAGRAMS Alternate Air Separator Location Return Highest Point in System Point of Lowest Solubility Return Eliminator Supply Separator Isolation Valve C.W.S. Return Eliminator Supply Separator Isolation Drain Valve C.W.S. Drain Automatic Drain Fill Valve Triple Duty Automatic Valve Drain Fill Valve Triple Duty Valve... - Page 6 For more information on how Xylem can help you, go to www.xylem.com Xylem Inc. 8200 N. Austin Avenue Morton Grove, Illinois 60053 Phone: (847) 966-3700 Fax: (847) 965-8379 www.xylem.com/bellgossett Xylem and Bell & Gossett are trademarks of Xylem Inc. or one of its subsidiaries. © 2022 Xylem Inc. A01500J January 2022...