Locating Boiler - UTICA BOILERS MAH-125 Installation, Operation And Maintenance Manual

!
WARNING
Fire Hazard! Do not install on carpeting. Failure to
follow these instructions could result in death or
serious injury.
4.1 Boiler Location Considerations
• Ambient room temperature always above 32°F (0°C) to
prevent freezing of liquid condensate.
• Approved for installation in closets or alcove provided
it is correctly designed for that purpose and minimum
clearances are met.
• Protect gas ignition system components from water
(dripping, spraying, rain, etc.) during operation and
service (circulator replacement, condensate trap,
control replacement, etc.).
• Access to outdoors to meet minimum and maximum
pipe lengths for combustion air and vent piping. See
section 6.
• Disposal of condensate. See section 6.
• Drainage of water (or water - antifreeze solution)
during boiler service or from safety relief valve
discharge. See section 5.
• Access to system water piping, gas supply, and
electrical service. See sections 5, 7 and
• Clearances to combustible materials and service
clearances. See Table 1 and Figures pg. 11.
• Boiler shall be installed on flat vertical wall which is
capable of supporting the weight of the boiler.
• Room-sealed boiler installed in a room containing bath
or shower shall be installed so person using bath or
shower cannot touch any electrical switch or boiler
control utilizing line voltage electricity.
• Multiple Boilers can be wall mounted, placed side by
side, or back to back.
• Observe service clearances in all installations.
• For Direct Vent installations, air vents are not required
in room boiler is installed in, or when installed in closet
or compartment.

4 - LOCATING BOILER

Dimension
Combustion Air/
(1)
Required distances measured from boiler jacket.
(2)
Service, proper operation clearance recommendation.
* Allowance for piping at the bottom of boiler not included.
NOTE: Greater clearances for access should supersede fire
protection clearances.
8.
12
TABLE 1: BOILER CLEARANCES
Combustible
Materials
Top
0" (0 cm)
Left Side 1-3/4" (45 mm)
Right Side
1-3/4" (45 mm)
Front
0" (0 cm)
Back
0" (0 cm)
Bottom 0" (0 cm)
0" (0 cm)
Vent piping
240011941 REV B, [03/31/2018]
Manufacturer
Recommended
(1)
for Service
(1)(2)
8-5/8" (220 mm)
1-3/4" (45 mm)
1-3/4" (45 mm)
17-3/4"(450mm)
0" (0 cm)
*9-13/16"
(250 mm)
6" (160 mm)