Gas Piping - Honeywell Eclipse Winnox WX Series Installation Manual

Gas Piping

Burner Piping
The burner is factory assembled and shipped as ordered.
NOTE: If it is necessary to redirect piping, remove the
outer four bolts only . Rotate the rear cover and
replace bolts. When reassembling, be sure that:
• ratio regulator spring column  is pointing down
• the bypass regulator spring column is pointing up
• arrow on the ratio regulator points in the direction of
gas flow
• integral fuel orifice and o-rings  are reinstalled
• the same straight run of pipe  remains between
the ratio regulator and the burner.
■ Do not attempt to redirect piping by removing the
inner circle bolts . Internal burner parts will be
damaged.
Figure 3.6. Burner Piping
32-00057—01
CAUTION
■ Do not alter the bypass regulator. The NFPA
requires that the
appropriately vented and protected.
■ For applications in which the Winnox is operating
indoors, a vent limiting device is installed in the
bypass regulator.
■ For applications in which the Winnox is operating
outdoors, an insect/rain protector is installed in
the bypass regulator.
Supply Piping
Inlet pressure to the ratio regulator must stay within
specified limits. Refer to the appropriate Winnox
datasheet, series 111.
• Locate the valve train close to the burner. The gas
must reach the burner during the fixed trial for
ignition period.
• Sufficiently size the shut off valve in the valve train.
• Make sure piping is large enough to accommodate
flow required to meet burner input.
• Minimize piping elbows.
• Install fuel flow measurement device  upstream
from the burner inlet.
• If necessary to maintain inlet pressures to the
burner (see datasheet for your burner), install a gas
pressure regulator  upstream of the burner inlet
and downstream of the valve train and fuel
measurement device .
Figure 3.7. Supply Piping
Pipe Connections
Installation of a pipe union in the gas line is recommended
to simplify burner removal.
Use of flexible pipe is optional.
NOTE: Flexible pipe causes higher pressure drops than
standard pipe. Consider this when sizing your gas lines.
CAUTION
bypass regulator
Main gas
shut-off
valve train
be

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