Ultra Boiler Manual

Part number 550-100-440/0122
75
  
ADVANCED INSTALLATION
3” or 4” concentric
Termination kit — 3” or 4” concentric termination
1. e 3” or 4” concentric termination kit must be purchased sepa-
rately. See below.
Use only the vent materials and kits listed in Fig-
ure12, page18 for concentric venting. Provide pipe
adapters as specied in Figure12,page18.
Allowable vent/air pipe materials
Use only the materials listed in Figure13,page19.
Maximum piping length
1. Locate the termination such that the total air piping and vent piping
from the boiler to the termination will not exceed the maximum
length given in Figure12,page18.
2. Maximum lengths listed in Figure12,page18 allow for 1 elbow.
Additional elbows required a reduction in maximum length as
explained in the table notes.
Connecting from termination to boiler
1. Install the termination as instructed in the following. en pro-
ceed to page82 to complete the piping between the termination
and the boiler.
Determine location
Locate the concentric vent/air termination using the following guide-
lines:
1. e concentric vent/air assembly must terminate as shown in
Figure84.
2. e vent and air piping connected to the termination assembly
must comply with the instructions in this supplement.
3. You must consider the surroundings when terminating the vent
and air:
a. Position the termination where vent vapors will not damage
nearby shrubs, plants or air conditioning equipment or be
objectionable.
b. e ue products will form a noticeable plume as they con-
dense in cold air. Avoid areas where the plume could obstruct
window views.
c. Prevailing winds could cause freezing of condensate and water/
ice buildup where ue products impinge on building surfaces
or plants.
d. Avoid possibility of accidental contact of ue products with
people or pets.
e. Do not locate the termination where wind eddies could aect
performance or cause recirculation, such as inside building
corners, near adjacent buildings or surfaces, window wells,
stairwells, alcoves, courtyards or other recessed areas.
f. Locate or guard vent outlet to prevent condensate damage to
exterior nishes.
4. Maintain clearances to termination as given below:
a. Vent outlet must be located:
Figure 84 Vertical termination — 3” or 4” concentric
Figure 85 Vertical termination — 3” or 4” concentric — multiple
boilers
All vent and air pipes require a bird screen
at each termination
. Most kits do not
include the screens. Purchase separately
from WM Technologies or vent kit supplier
if not included.