AM Series Boiler & Water Heater User Manual
CHAPTER 3: INSTALLATION
– SITE
OMM-0100_E
•
GF-146
•
11/15/2019
Technical Support
•
(800) 526-0288
•
Mon-Fri, 8 am - 5 pm EST Page 32 of 170
Figure 3-3: AMR Option - Recommended Minimum Service Clearances
NOTE:
Service clearances are minimum required clearances for ease of access, but larger service
clearances are always preferred.
3.6 Clearances to Combustible Material
This unit may be installed directly onto a floor of combustible material with the following
clearances:
Table 3-1: Unit Installation Clearance Dimensions
COMPONENT
CLEARANCE DISTANCE
Ceiling
2 inches (51 mm)
Front
2 inches (51 mm)
Rear
2 inches (51 mm)
Sides
2 inches (51 mm)
Floor
0 inches (0 mm)
Concentric vent
0 inches (0 mm)
Split vent (two pipes) first 3 feet from the boiler
1 inch (25 mm)
Split vent (two pipes) after 3 feet from the boiler
0 inches (0 mm)
Boiler piping
¼ inch (7 mm)