Valve Installation - Eclipse ExtensoJet EJ025 Installation Manual

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Eclipse ExtensoJet v2 Installation Guide No. 230, 9/17/2008
Valve Orientation
Install all the valves in such a way that the arrow (if present) on the
valve body points in the direction of flow.
Gas Cocks
Make sure that the handle of a gas cock is at a right angle to the
valve body when the valve is in the closed position. This is an
important position indicator. If you do not do this, somebody may
think that the gas cock is in the closed position, while it is actually
in the open position.
Gas Balancing Valves
A gas balancing valve is typically the same as a manual butterfly
valve. For more information, refer to the section below.
Manual Butterfly Valves
1. Install manual butterfly valves in accordance with Bulletin/Info
Guide 720.
2. Install manual butterfly valves in the gas line to the burner
(optional).
Note:
It is recommended that there is a run of pipe with a length
of at least 10 pipe diameters between any flow altering
device and the metering orifice on the burner.
Automatic Butterfly Valve
An automatic butterfly is driven by an actuator (actuator and
mounting bracket not illustrated). Install the control valve in
accordance with Bulletin/Info Guide 720.
Ratio Regulator
• Connect an impulse line to the ratio regulator and to the air
supply line.
• Install the ratio regulator in accordance with Bulletin/Info Guide
742.
CRS Valve
Install the CRS valve in accordance with Bulletin/Info Guide 744.
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