Key To System Schematics - Eclipse TA Series Installation Manual

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ChematiCs
Symbol Appearance
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These are the symbols used in the schematics.
Name
ThermAir
Eclipse Combustion, Inc.
Main Gas Shutoff
strongly endorses NFPA as a
Valve Train
minimum
Gas cocks are used to manually
Gas Cock
shut off the gas supply on both
sides of the main gas shut-off
valve train.
Solenoid valves are used to
Solenoid Valve
automatically shut off the gas
(normally closed)
supply on a bypass gas system
or on small capacity burners.
Adjustable limiting orifices are
Adjustable Limiting
used for fine adjustment of gas
Orifice
flow.
A pressure regulator reduces
Pressure Regulator
gas pressure to a stable, usable
pressure.
The ratio regulator adjusts the gas
flow in ratio with the air flow. It
Ratio Regulator
contro;s the outlet pressure equal
to the impulse line pressure. The
impulse line is connected between
the top of the ratio regulator and
the blower housing.
An automatic gas control valve
Automatic Gas
adjusts gas flow to the burner
Control Valve
based on control system
requirements.
Impulse Line
Eclipse ThermAir T/A Series v1.10, Installation Guide No. 114, 4/7/06
Remarks Bulletin/
Info Guide
756
710
760
730
684
742
720
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