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Section 3 - Handling, storage, and installation
Installing the Gruvlok® rubber grommet
This is a critical point connection step.
Important:
Before the top segment is assembled, remove the pip-
ing dust covers and install the Gruvlok rubber grom-
met. See Figure 12 on page 20, Figure 13 and Fig-
ure 14 on page 20.
Failure to do so may result in the inability to secure or
to seal the Gruvlok fitting to the upper and lower seg-
ment header assemblies. It is important to perform this
step before lifting and setting the upper segments on
60K units.
Figure 12: Removing piping dust covers
The following figure shows the grommet slid over the
lower pipe assembly before the upper arrangement.
Figure 13: Grommet over lower pipe assembly
20
The following figure shows the final assembly with
segments secured, piping aligned, and the grommet
moved up over the seam.
Figure 14: Final assembly
Table 3: Gruvlok model 7401
Part number
023 24896 000
023 24897 000
023 26711 000
Table 4: Maximum bolt torque
Bolt size (in.)
Wrench size (in.)
3/8
11/16
1/2
7/8
5/8
1 1/16
3/4
1 1/4
1
1 5/8
Form CRAH102.20-N1
Issue date: 03/11/2024
Size
2 1/2 in.
3 in.
4 in.
ft-lb
50
120
235
425
900
Johnson Controls
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