FULTON FB-W 012, Инструкция по установке и эксплуатации, Страница: 12 / 32

© The Fulton Companies 2014
INSTALLATION
FBW-IOM-2014-0311
SECTION 2
2-6
these contaminants from impacting on boiler performance, valve operation and
general pipe longevity, each location must be analyzed and treated accordingly.
The following are installation recommendations for “closed-loop” recirculating
hot water heating systems.
1. Automatic pressure activated water make up valve with backfl ow
preventer providing water to the system, not fed directly to the boiler, set
to maintain:

Required NPSH for recirculating pump(s).

A positive system pressure at the highest point of 5 to 10 psi.

Make up water valve should be designed to add water to the system at
the outlet of the boiler and should not be fed directly into the boiler.

Air removal equipment, including air separator and automatic air breather
valves.

A functioning expansion tank designed to system specifi cations.

Filtration to remove particulates installed inline with the suction side of
the recirculating pump.

Bypass chemical feeder for corrosion inhibitor maintenance.

Optionally a water meter could be installed in series with the automatic
pressure activated water make up valve to monitor any make up water.
2. Ensure water quality meets the following:

Oxygen - less than 250 ppb (operating condition)

pH: 8 -10.5

Total Iron & Copper - less than 25 ppm

Corrosion Inhibitor - level capable of maintaining iron corrosion rates < 2
mpy. Due to changing environmental restrictions, a non-heavy metal,
all organic inhibitor is recommended, which is designed for multi-metal
systems including ferrous metals and yellow metals such as copper and
brass.

Chlorides - less than 250 ppm.
3. Maintenance: To prevent scale or corrosion in boiler and associated piping,
make up water must be kept to a minimum. This is best achieved by
ensuring immediate repair of all leaks and maintenance of system pressure.
NOTE:

There is a low water cut-off furnished as standard on all boilers.

Water/Mechanical Installation
Adhere to the following for water supply installation:
1. Pipe the supply water and return lines to the openings on the boiler. Water
stop valves should be in line between the boiler and the fi rst piece of
!
WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct, and strict
adherence to applicable jurisdictional/
professional codes and regulations.
Do not downsize safety valve discharge
piping below safety valve discharge
connection size. This is code violation.
4
CAUTION
Do not install this boiler on carpeting.
Boiler room temperatures greater than 100
F may cause premature failure of the control
panel electrical components.
This boiler is equipped with a door safety
switch, which will de-energize the boiler
when the panel door is opened.