HTP Elite FT EFT-285, Installation, Start-Up, Maintenance, Parts, Warranty, Page: 10 / 70

lp-657 Rev. 001 Rel. 000 Date 12.10.18
10
Figure 4 - Wall Mounting Bracket - NOTE: Drawing for Demonstration
Purposes Only
This wall mounting system is not seismic rated and should not be
applied as such. Failure to comply with the above and properly
mount the boiler could result in substantial property damage, severe
personal injury, or death.
DO NOT use the bolts included in shipping for wall mounting the
boiler. Doing so may result in property damage, serious injury, or
death.
1. Mounting to a Wood Studded Wall
a. The building frame (studs) must be 2 X 4 minimum and 16” on center
(24” on the 399 model). If not, you must use ½” minimum plywood 24”
x 48” with at least fourteen (14) #12 x 3” (3/16” x 3”) round head tapping
screws to the frame of the building to provide proper support for the
boiler. No alternate methods of mounting or fastening (ex. Toggle
bolts, hollow wall anchors, or any other fastener) may be used.
b. The provided mounting bracket must be mounted directly to the
center of at least 2 studs using standard steel or stainless steel ¼” x 2 ½”
lag bolts for all models. Be sure the bracket is level and mark the hole
location of the bracket height and horizontal stud location. Ensure the
marked holes are located in the center of the building frame (studs).
c. For all models, 2 ½” is the minimum lag bolt length if the bracket is
directly on stud. Increase lag bolt length for any materials covering the
studs.
d. Predrill pilot holes on the marked stud locations. The pilot holes for
bare studs should be 2” deep for all models. See table below for pilot
hole diameter by wood type. Increase length for any material covering
the stud. Ensure that the predrilled holes are straight and square to the
wall. Failure to do so could lead to insufficient support or out of level
boiler. See Figure 4.
NOTE: Bolt must embed into the wood structure a minimum of 2”.
e. Using the predrilled holes, mount the hanger bracket to the building
frame (studs) using the appropriately sized standard steel (or stainless)
lag bolt. Hang boiler on the wall mounted bracket. Be sure that the
bracket is engaged before letting the boiler hang free. Slowly release
the weight of the boiler while ensuring that the bracket is properly
secured. Verify that the boiler is securely mounted before leaving the
boiler unsupervised.
Required Amount of Bolts for Wall-Mounting the Boiler
Model Amount of Bolts
285 4
399 6
Pilot Hole Size by Wood Type
Type Drill Bit Size
Soft 3/32”
Hard 3/16”
Table 1 - Bolts Required and Pilot Hole Size for Wall-Mounting the Boiler
If the boiler is not installed upright, vertically plumb, and level,
improper and unsatisfactory operation may occur, causing excessive
condensation build-up, nuisance fault codes, and unnecessary
maintenance.
G. Residential Garage and Closet Installations
Precautions
If the boiler is located in a residential garage, per ANSI Z223.1:
• Install the boiler burner and ignition devices a minimum of
18” above the floor of the garage. This will ensure the burner
and ignition devices are well off the floor.
• Locate or protect the boiler so it cannot be damaged by a
moving vehicle.
Check with your local Authority Having Jurisdiction for
requirements when installing boiler in a garage or closet. Please
read the entire manual before attempting installation. Failure to
properly take factors such as boiler venting, piping, condensate
removal, and wiring into account before installation could result in
wasted time, money, and possible property damage and personal
injury.
2. Mounting to a Metal Frame
a. The provided mounting bracket must be mounted to the center
of at least 2 studs using standard steel or stainless steel toggle bolts
3/16” diameter or larger, and at least 2” long for direct mounting on
at least 18 gauge studs. Be sure the bracket is level and mark the
hole location of the top bracket height and horizontal stud location.
Ensure the marked holes are located in the center of the building
frame (studs).
b. 2” is the minimum toggle bolt length if the bracket is directly on
stud. Increase length for any materials covering the studs.
c. Predrill holes on the marked stud locations. The predrilled holes
should be ½” in diameter for 3/16” bolts, and ¾” in diameter for 3/8”
bolts, to allow for the collapsed wings of the toggle to slide through.
Ensure that the predrilled holes are straight and square to the wall.
Failure to do so could lead to insufficient support of out of level
boiler. See Figure 4.
d. Using the predrilled holes, mount the hanger bracket to the
building frame (studs) with the toggle bolts. Ensure that the bolt
toggles are through the stud and expanded catching the inside
of the stud. Tighten the toggle bolt until the mounting bracket is
secure. Hang boiler on the now wall mounted bracket. Be certain
that the bracket is engaged before letting the boiler hang free.
Slowly release the weight of the boiler while ensuring the bracket
is properly secure. Verify that the boiler is securely mounted before
leaving it unsupervised.
H. Exhaust Vent and Intake Pipe
The boiler is rated ANSI Z21.13 Category IV (pressurized vent, likely
to form condensate in the vent) and requires a special vent system
designed for pressurized venting.
NOTE: The venting options described here (and further detailed
in the Venting section, this manual) are the lone venting options
approved for this boiler. Failure to vent the boiler in accordance
with the provided venting instructions will void the warranty.
The space must be provided with correctly sized combustion/
ventilation air openings for all other appliances located in the
space with the boiler. For power venting installations using room
air for combustion, refer to the boiler venting section, this manual,
for descriptions of confined and unconfined spaces. Do not install
the boiler in an attic. Failure to comply with these warnings could
result in substantial property damage, severe personal injury, or
death.