Bell & Gossett V58303B User Manual

INSTRUCTION MANUAL

WARNING: Label Part No. 9017-078
must be installed in this location.
If missing, it must be replaced.

WARNING: Label Part No. 9015-463
must be installed in this location.
If missing, it must be replaced.

V58303B

Expansion Tanks for Potable Water Systems

ASME And Non-Code

INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.

SAFETY
INSTRUCTION

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.

A relief valve must be installed to prevent pressure in

excess of local code requirements or maximum working
pressure in manual, whichever is less. This product must be
installed by a qualified professional. Failure to follow the instructions
in the accompanying product manual may cause a rupture or explo­sion. Failure to follow this instruction may result in serious personal
injury or death and property damage and void product warranty.

DESCRIPTION

Series “PT” and “PTA” expansion tanks are precharged diaphragm­type vessels. The PTA Series meet the requirements of the ASME
boiler and pressure vessels code. The Series “PT” and “PTA” tanks
are designed to absorb the force of expanding water and protect the
potable water system from pressure build up. Refer to table 1 on
page 2 for pressure and temperature information.

limitation specified. Refer to Table 1 on page 2 for the maximum lim­itations specified. Failure to follow this instruction may result in seri­ous personal injury or death and property damage.

leaking or flooding could cause property damage. Failure to follow
this instruction may result in property damage.

INSTALLATION INSTRUCTIONS

A. Pre-Installation

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.

WARNING: Use only potable water. Installer must comply
with all plumbing codes. Do not operate in a setting where
the temperature or pressure can exceed the maximum

WARNING: Do not locate this product where leaking or
flood could cause damage to the surrounding area. A drip
pan connected to an adequate drain must be installed if

1. Visually inspect expansion tank and check for damage
prior to installation.

WARNING: If the expansion tank is damaged, it must be
replaced. Failure to follow this instruction may result in
serious personal injury or death and property damage.

2. Adjust pre-charge to equal incoming pressure.

3. Replace and tighten plastic cap on air fitting.

TABLE 1

MAXIMUM LIMITATIONS FACTORY

MODEL NUMBER PRESSURE TEMPERATURE PRE-CHARGE

PT-5, PT-12, PT-25V, PT-30V, PT-42V, PT-60V, PT-80V, PT-180V, PT-210V 150 PSIG (1035 kPa) 200°F (93°C) 40 PSIG (379 kPa)
PT-447 through PT-457 150 PSIG (1035 kPa) 240°F (115°C) 55 PSIG (379 kPa)
PTA-5, PTA-12, PTA-20V, PTA-30V, PTA-42V, PTA-60V,PTA-80V, PTA-180V, PTA-210V 150 PSIG (1035 kPa) 200°F (115°C) 55 PSIG (379 kPa)
PTA-447 through PTA-457 125 PSIG (862 kPa) 240°F (115°C) 55 PSIG (379 kPa)

*Water temperature not to fall below 35°F (1.6°C).

WARNING: State of California Residents.

This product contains a chemical known by the State of

California to cause cancer. This product contains a
chemical known by the State of California to cause birth defects or
other reproductive harm.

WARNING: System fluid under pressure and/or at high

temperatures can be very hazardous. Before servicing,

reduce system pressure to zero or isolate the vessel from
the system. Allow system to cool below 100°F and above 35°F.
Failure to follow this Instruction may result in serious personal injury
and/or property damage.

WARNING: Do not adjust the pressure or re-pressurize

this product except for any adjustments at the time of the

initial installation when the product is new. Only qualified
professionals should check, adjust or re-charge the pre-charge
of tanks. failure to follow this instruction may result in serious per­sonal injury or death and property damage.

B. Installation

1. Install the expansion tanks on the cold water supply
(CWS) line at a point between the water heater and back­flow preventer, check valve or pressure reducing valve

(see Figure 1).

2. Once tank is installed fill system and check for any leak­age. Make repairs if necessary.

WARNING: Rupture or Explosion Hazard.
Like most pressurized tanks, this tank can over time cor­rode, weaken, and burst or explode. Failure to follow this

instruction may result in serious personal injury or death and prop-

erty damage.

WARNING: Chlorine & Aggressive Water Warning.
The water quality can significantly influence the life of

your product. You should test for corrosive elements,
acidity, total solids, and other relevant contaminants, including chlo­rine and treat your water appropriately to insure satisfactory per­formance and prevent premature failure. Failure to follow this
instruction may result in serious personal injury or death and prop-

erty damage.

WARNING: Install or store where tank will not be

exposed to temperatures below freezing or above rated

working temperature. Do not expose to any type of

weather.

3. Before the initial firing of the water heater, open a hot
water fixture and draw water until all air is removed from
the system. Turn the water heater temperature control to
desired ending temperature level (see water heater

instructions).

4. To relieve initial thermal expansion, slightly open a hot
water faucet. Continue until water heater aquastat tem­perature is satisfied. Once heater is at its operating range,
no further bleeding of expanded water is required.

SERIES “PT” OR “PTA”
IN-LINE MOUNT
MODELS

SERIES “PT” OR “PTA”
FLOOR MOUNT
MODELS

5. The system water heater and expansion tank will now be
operational. The expansion tank will absorb pressure
increases caused by thermal expansion to a level well
below the water heater relief valve setting.

OPERATING INSTRUCTIONS

1. The expansion tank is installed in the supply line between

the backflow preventer and the water heater. Its sealed-in
air pre-charge prevents water from entering the tank until
the system pressure exceeds the pre-charge pressure.

2. As the water temperature rises, expanded water enters

the expansion tank’s non-corrosive water reservoir. The
pre-charge air chamber absorbs the pressure increase,
keeping system pressures below the relief valve setting.

3. As hot water is used, the pressure in the air chamber

forces water back into the system until the expansion
tank is empty. At this point, the pressure in the air cham­ber once again equals the supply pressure.

NOTE: Models PT-5, PT-12 and PT-25V are IAPMO listed.

Models PT-5 thru PT-210V are listed under ANSI/NSF Std

61 and City of Los Angeles.

Models PTA-5 thru PTA-210V are listed under ANSI/NSF
Std. 61 and City of Los Angeles.

Xylem Inc.

8200 N. Austin Avenue
Morton Grove, Illinois 60053
Phone: [phone]
Fax: [phone]
www.xyleminc.com/brands/bellgossett

Bell & Gossett is a trademark of Xylem Inc. or one of its subsidiaries.
© 2012 Xylem Inc. V58303B May 2012