Installing The Propane Restrictor - Beckett CG15 Manual

Installing the Propane Restrictor

Refer to Figure 12 and Figure 13 when performing the
following steps.
1. Remove the jacking screw (B) from the housing to
free the internal gas tube (C).
2. Gently rock the internal gas tube (C) to loosen the
tube from the burner housing (D).
3. Inspect the O-rings and ensure that they are
properly lubricated. (A silicon O-ring lubricant is
recommended, but automotive chassis or bearing
grease is an acceptable substitute.)
4. Referring to Figure 13 , place the restrictor (F) with
pre-attached, pre-lubricated O-ring (G) into the
internal gas tube (C). Use your hand to press the
restrictor into the tube. The O-ring will hold the
restrictor in place.
5. Ensure that the O-ring (H), attached to the outside
diameter of internal gas tube, is properly lubricated
and seated against the flange on the internal gas
tube.
6. Install the internal gas tube (C) back into the housing,
refer to Figure 12 . Fit the end of the tube into the
external gas manifold (E).
7 . Re-install the jacking screw (B). (Refer to the above
notice for installation details.)
8. Fill out and place the supplied Conversion Data Plate
(Part No. 61712) adjacent to the rating plate.
9. Complete and attach the supplied Adjustment Data
Tag (Part No. 61711).
With the Propane restrictor installed, as shown in
Figure 12 and Figure 13 , all burner air adjustments and
gas manifold pressure adjustments for propane will be
approximately the same as the natural gas adjustments
shown in the burner manual. For a copy of the current
burner manual go to http://www.beckettcorp.com/protect/
tech.asp. If furtherTechnical assistance is required, call
800-645-2876, Monday thru Friday, 8AM to 5PM EST.
CG15, CG25, CG50 Burner Manual, Form No. 6104BCG50
Figure 14 — Gas Gun Installation
Table 3 — Propane Restrictors Replacement Part Numbers
Restrictor Part
Burner Model
Number
CG15.1S 3246709U
CG15.2S 3246710U
CG15.3S 3246711U
CG15.4S 3246712U
CG25.1S 3246713U
CG25.2S 3246714U
CG25.3S 3246715U
CG25.4S 3246716U
CG25.5S 3246717U
CG50.1S 3246718U
CG50.2S 3246719U
CG50.3S 3246720U
CG50.4S 3246721U
CG50.5S 3246722U
Use authorized replacement parts only. Restrictors
are precision-machined parts. Do not attempt to
replicate or modify any parts. Refer to Table 3 .
The gun assembly is secured inside the air tube by
a spring-loaded jacking screw. It is spring loaded in
order to control the force it can impose on the gun
assembly. When installing the jacking screw look
inside the air tube to verify that the pointed tip of
the jacking screw pin is seated into the small slot
on the locating pad on top of the gun. There is also
an external verification of correct assembly: when
the screw is fully tightened, the e-clip on the top of
the center pin should come flush with the top of the
screw. Refer to Figure 14 .
Section: Installation Instructions —
Restrictor
O-Ring Part
Inside
Number
Diameter
0.532 3226401U
0.576 3226401U
0.623 3226401U
0.677 3226401U
0.712 3226402U
0.742 3226402U
0.796 3226402U
0.833 3226402U
0.889 3226402U
0.925 3226403U
0.980 3226403U
1.031 3226403U
1.103 3226403U
1.150 3226403U
19