14
4 - LOCATING BOILER
CAUTION
Boiler weight exceeds 100 pounds (45.3 kg). Do not
lift boiler onto wall without assistance.
!
4.3 Wall Mounting
1.
Decide position of boiler on the wall allowing for all
required clearances and flue terminal position.
2.
Mount boiler on wall using wall mounting bracket included
with unit. See Figure 4.1
3.
Adjust the position of the boiler verify it is level.
4.
Rear exit flue - mark position of hole for flue.
5.
Side exit flue - mark horizontal center line of flue across
the wall to side wall, then along side wall (ensure lines are
parallel and sloped properly towards the boiler, refer to
section 6. This will give position of center of hole for flue.
6.
Required hole size for coaxial flue:
• GMHB125 & GMCB150 - 4
3/8
" [110 mm] diameter
• GMBH160 & GMCB200 - 5
5/16
" [135 mm] diameter
Note
Lift boiler using chassis. Do not use front jacket,
vent piping, water or gas fittings to lift boiler as it
may cause damage to the boiler.
Use two (2) wrenches when tightening and fitting
to pipe boiler's threaded fittings. Boiler's internal
piping can be damaged if subjected to excessive
torque.
Note
FIGURE 4-1 WALL MOUNT BRACKET (INCLUDED)
Center brackets. Avoid
overhang on sides of
wall mount bracket.
Use four (4) predrilled
holes for mounting
bracket to wall
PN 240012363 REV. B [03/29/2019]
