Install Water Piping - FULTON Vantage VTG Series Installation And Operation Manual

SECTION 2
VTG-IOM-2016-1214

Install Water Piping

All water supplies contain some solids, dissolved gases or dissolved minerals.
These may cause corrosion, deposition and/or fouling of equipment. To prevent
these contaminants from impacting boiler performance, valve operation and
general pipe longevity, each location must be analyzed and treated accordingly.
Adhere to the following for water piping installation (See Figure 3 - 4):
1. Manual isolation valves are recommended on both water connections for
ease of service.
2. Install piping so that the boiler is not supporting any additional piping.
3. Install manual purging valves in all loops and zones.
4. Install a pressure-reducing (automatic fill) valve in the cold water fill line
to the boiler system. Check that the proposed operation of zone valves,
zone circulator(s) and diverting valves will not isolate air separator(s) and/
or expansion tank(s) from the boiler. Clearance from hot water pipes to
combustibles must be at least 6 inches (152 mm).
5. When used in conjunction with a refrigeration system, install the boiler
so that the chilled medium is piped in parallel with the boiler with
appropriate valves to prevent the chilled medium from entering the
boiler. If the boilers are connected to heating coils (located in air handling
units where they may be exposed to refrigerated air circulation) such
boiler piping systems must be equipped with flow control valves or other
automatic means to prevent gravity circulation of the boiler water during
the cooling cycle.
6. Include the following in the mechanical equipment in the hydronic
heating system:
» An automatic pressure activated water make up valve with back
flow preventer. It must be set to maintain required Net Positive
Suction Head (NPSH) for re-circulating pumps, a positive system
pressure at the highest point of at least 5-10 PSIG (34.5 - 69 kPa),
and 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 an air separator and automatic
breather valves, along with a functioning expansion tank . Each
must be designed to system specifications.
NOTEE: The water connection on the top of the boiler is the outlet connection. The
–
water connection on the rear of the boiler is the inlet connection.
7. Install filtration to remove particulates if appropriate.
8. Install bypass chemical feeder for corrosion inhibitor maintenance if
appropriate.
Questions? Please Contact Your Local Manufacturer's Representative
INSTALLATION
!
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.
The discharge from the safety relief
valve must be arranged to ensure
no danger of scalding personnel, or
equipment damage.
Provisions must be made to properly
pipe the safety relief discharge
away from the boiler to the point of
discharge.
No shutoff of any kind shall be placed
between the safety relief valve
and the boiler, or in the discharge
pipe between the valve and the
atmosphere. Doing so may cause an
explosion from overpressure.
The hydronic system should never be
flushed while the boiler is attached
to the system since the debris could
accumulate in the boiler and block
water from passing through the heat
exchanger.
Ensure all labels on the boiler are
legible. All connections and safety
devices, both mechanical and
electrical, must be kept clean, with
ease of access for inspection, use and
maintenance.
Do not store or use gasoline or other
flammable vapors and liquids or
corrosive materials in the vicinity of
this or any other appliances.
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