INITIAL START-UP
4-2
Figure 4.1
1/4” Gas Plug Location
(See Appendix F for IRI Gas Trains)
4.2.3 PREPARING THE FLUE VENT
PROBE HOLE
1. If the unit has been installed using the
recommended AL29-4C vent, there will be a
3/8” hole, in the center of the starter section
(Part #123679). The outer vent section, that
covers the vent section connections must be
loosened and moved to uncover the hole
(see Figure 4.2)
2. Adjust the stop on the combustion analyzer
probe, if so equipped, so that it extends
approximately midway into the flue gas flow.
Do not insert the probe at this time.
Figure 4.2
Analyzer Probe Hole Location
4.2.4 INSTALLING THE DIFFERENTIAL
REGULATOR ADJUSTMENT TOOL FOR
NATURAL GAS UNIT.
1. Remove the cap from the differential
pressure regulator (see Figure 4.3).
2. Place the gasket from the regulator cap onto
the regulator adjustment tool.
3. Prior to installing the tool on the regulator,
pull up the screwdriver blade of the tool.
Then thread the tool into the regulator and
hand tighten.
4. Engage the tool’s screwdriver blade into the
regulator’s adjustment screw slot.
Figure 4.3
Differential Regulator Adjustment Tool
Installation For Natural Gas Unit
NOTE:
Gas train drawings for Dual-Fuel units are
included in Appendix F.
4.2.5 INSTALLING THE DIFFERENTIAL
REGULATOR ADJUSTMENT TOOLS FOR
DUAL FUEL UNIT
1. Remove the cap from each differential
pressure regulator (see Figure 4.4).
2. Place the gaskets from the regulator caps
onto the regulator adjustment tools
.
3. Prior to installing the tools on the regulators,
pull up the screwdriver blade of each tool to
the stop. Next, thread the tool into each
regulator and hand tighten.
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