Part number 550-101-232/0703
7
GAS-FIRED WATER BOILER — Installation Manual — Multiple-boiler Systems
06-24-03 CONFIDENTIAL REVIEW & COMMENT ONLY
Placement and mounting information
Placement, general
1. Locate multiple boilers in boiler
room according to:
• Figure 3 (side-to-side), or
• Figure 4 (back-to-back).
For wall mounting, see below.
2. Provide indicated clearances
around boilers for access and
servicing. If recommended di-
mensions are not possible, re-
fer to Ultra Boiler Manual for
minimum clearances. Also fol-
low local codes.
3. Construct boiler foundation if
boiler room floor is uneven or
if there is a danger of flooding.
Size foundation to allow for
clearance and spacing dimen-
sions shown in either Figure 3
or Figure 4.
4. Chalkline boiler locations on
foundation or boiler room
floor.
5. Uncrate, assemble and mount
boilers according to Ultra
Boiler Manual.
6. Provide clearance for installa-
tion of venting, air piping, gas
piping, expansion tank, primary
circulator and other accessories.
Wall mounting
1. Ultra boilers may be wall
mounted, following the instruc-
tions in the Ultra Boiler Manual
and the Wall Mounting Supple-
ment.
2. When wall mounting boilers,
provide approximately 6 inches
between boilers for easy re-
moval of boiler jacket door. See
Figure 5.
3. Follow all applicable codes re-
garding piping, electrical con-
nections and clearances.
4. When wall mounting boilers,
verify the wall construction is
suitable for the structural load.
Figure 3 Side-to-side installation of multiple Ultra-80/-105/-155/-230 boilers
Figure 4 Back-to-back installation of multiple Ultra-80/-105/-155/-230 boilers
Figure 5 Wall mounting multiple Ultra-80/-105/-155/-230 boilers
