Bell & Gossett A91591 Number 98 High Capacity Air Vent 1/2″ Female NPT Connection Operational Limits User Manual
Number 98 high capacity air vent, Installation, operation, & service instructions, Operational limits
Installation, Operation, & Service Instructions
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.
DESCRIPTION
The Bell & Gossett No. 98 is a high capacity automatic air vent
that is capable of releasing large amounts of air from hydronic
systems.
TECHNICAL
SPECIFICATIONS
Connections:
1/2" NPT Female
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INST
ALLATION INSTRUCTIONS
INST
ALLER:
PLEASE LEA
VE THIS MANUAL FOR THE OWNER’S USE.
Number 98
High Capacity Air Vent
1/2" Female NPT Connection
Operational Limits
Bell & Gossett
Instruction Manual A91591
Temperature Range
32-250°F (0-120°C)
Max. Pressure
150psig (10 Bar)
CAUTION: All work must be performed by qualified
personnel trained in the proper application, installation,
and maintenance of systems in accordance with all applica-
ble codes and ordinances.
CAUTION: If the No. 98 vent is not installed, commis-
sioned and maintained properly, according to the
instructions contained in this manual, it may not operate cor-
rectly and may endanger the user.
CAUTION: Make sur
e that all the connecting pipework
is water tight.
CAUTION: When making the water connections, make
sure that the pipework connecting the No. 98 vent is
not mechanically over-stressed. Over time this could cause
breakages, with consequent water losses which, in turn,
could cause harm to property and/or people.
CAUTION: W
ater temperatures higher than 100°F
(38°C) can be dangerous. During the installation, com-
missioning and maintenance of the No. 98 vent, take the
necessary precautions to ensure that such temperatures do
not endanger people.