Fulton VMP Hot Water (VMPW) - Manual (Page 21)

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SECTION 2
VMPW-IOM-2012-1001
INSTALLATION
2-15
Roof
Minimum
6' Above
Any Structure
Within 30'
Support As
Necessary
Install
Appropriate
Weather
Cap
Horizontal
Run 2'
Draft Regulator
(If Necessary) Draft Regulator
(If Necessary)
Expansion Joints
As Required
Horizontal
Run 2'
60¡
(45¡ Min.)
Cleanout
Door
Cleanout
Door
Cleanout
Door
This Distance
Must Not
Exceed 70%
Of Total Rise
Baffle
3'
3'
30¡
Max
Stagger
Entrances
A A
A-A
Total
Rise
FIGURE 2 - TYPICAL STACK ARRANGEMENT
9. Concentration levels of only a few ppm of chlorine
containing compounds in combustion air can produce
serious corrosion of the fl ue over long periods of time.
High chlorine containing compounds such as carbon
tetrachloride or perchloroethylene would be prime
suspects.
Exhaust Side Wall Venting
Boilers for which sidewall venting (Figure 4) may be utilized
are propane, natural gas, or combination propane and natural
gas sizes 10 to 30 HP.
Adhere to the following for installations requiring sidewall
venting:
1. Flue vent piping must be pitched upward at ¼ in (6.35
mm) per one foot (3.048 m) of length.
2. An UL-approved draft fan must be installed to provide
suffi cient draft (-0.02 to -0.04” wc) to safely vent
products of combustion.