Fulton VMP Hot Water (VMPW) - Manual (Page 22)

© The Fulton Companies 2012
INSTALLATION
VMPW-IOM-2012-1001
SECTION 2
2-16
Air Flow
Safety Switch
U.L. Approved
Induced Draft Fan
Side Wall
Vent
Termination
(By Others)
Side Wall Vent
(By Others)
FIGURE 3 - TYPICAL SIDEWALL VENTING
3. The draft fan should be located as close to the fl ue
outlet as possible.
4. Draft regulation suffi cient to lower the draft to between
-0.02 to -0.04 “ wc may be required. The draft regulator
must be between the boiler and the fan.
5. The draft fan shall have an air fl ow proving switch wired
in series with the boiler air safety switch.
6. The sidewall vent total length from boiler exhaust to
termination shall not exceed 35 feet (10.6 m) with 4
elbows maximum.
Testing
Upon completion of the installation, perform the following
testing:
1. A pneumatic test of water piping not exceeding 15
psig.
2. Leak tests at all welds and joints to ensure that the
system is free from leaks.