Bell & Gossett HFT Expansion Tanks for Hydronic Heating Systems - Manual

HFT Expansion Tanks for
Hydronic Heating Systems
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
WARNING: Explosion or Rupture Hazard.
A relief 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-charge this Product except for any
adjustments at the time of the initial installation,
especially if Product is 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 and may
lead to Product failure, serious or fatal personal injury,
leakage, and/or property damage.
WARNING: Read carefully the product
installation, operating and maintenance
instructions. Failure to follow the instruc-
tions 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.
DESCRIPTION
When water is heated, it expands. Provision must be
made for this expansion in a closed hot water heating
system. The Bell & Gossett Series HFT pre-charged
diaphragm tank stores the expanded hot water and
returns air-free water to the system when the
temperature drops.
OPERATIONAL LIMITS
Maximum Operating Pressure: 100 PSI.
Maximum Operating Temperature: 240ºF.
WARNING: This product, like most products
under pressure, may over time corrode,
weaken and burst or explode, causing
serious or fatal personal 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.
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 THE
INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD.
WARNING: California proposition 65
warning! This product contains chemicals
known to the state of California to cause
cancer and birth defects or other reproduc-
tive harm.
INSTRUCTION MANUAL
V1000002B