P/N 42-9540 11/12 Copyright 2012 Hydrotherm
Page 14
KN INSTALLATION INSTRUCTIONS FOR VENT AND AIR PIPING
10 —Air pipe termination
(see Figure 8)
❑
See Table 3 for part numbers of the vertical termination components required
for EZ-Seal air pipe installations. Th e air piping termination must be constructed
using the stainless steel vent materials listed in Table 3 to ensure the confi guration
is correct. DO NOT terminate the air piping with any other method.
❑
Termination assembly components:
A.
Rain cap
— Use only the rain cap listed in Table 3, the same cap as used on
the vent termination.
Install the rain cap so it meets the minimum clearances shown in Figure 9,
page 11.
B. Length of vent pipe
— Use a 3-foot length of vent pipe as listed in Table 3
unless the roof penetration requires a longer length to meet minimum
clearances. If a longer length is required, use a length of EZ-Seal long enough
for the application.
Att ach the air piping to the male end (bott om end) of the stainless steel pipe.
C. Roof penetration components
— Use the same components as used for
the vent penetration.
Multiple boiler installations
Venting multiple boilers
❑
Install multiple vents through the roof following all guidelines for single-vent
installations.
❑
Install the vents so they are no closer than 12 inches on centers.
❑
Provide minimum 5 feet between the center line of any vent termination and any
air intake termination.
Air piping for multiple boilers
❑
Air for each boiler must be individually piped.
DO NOT
use combined air piping.
❑
Install multiple air pipes through the side wall following all guidelines for single-air
pipe installations.
❑
Install the terminations so they are no closer than 12 inches on centers.
❑
Provide minimum 5 feet between the center line of any vent termination and any
air intake termination.
Vent and air piped through the roof
(separate terminations)
(continued)
3
