Fulton Pulse HW (PHW) Fully Condensing Hydronic Boiler - Manual (Page 14)

© The Fulton Companies 2013
INSTALLATION
PHW-IOM-2013-0214
SECTION 2
2-8
!
WARNING
Discharge from the safety relief valve
must be arranged so that there is no
danger of scalding. When the safety
relief valve is piped away from the
boiler to the point of discharge, there
must be provisions to properly drain
the piping.
No shutoff of any kind may be placed
between the safety relief valve and
the boiler, or on the discharge pipe
between the safety relief valve and
the atmosphere. Doing so may
cause an accidental explosion from
overpressure.
4
CAUTION
Care needs to be taken to eliminate
oxygen from the water system, as
excess oxygen in the system will
reduce the life of any boiler. The
boiler warranty does not cover heat
exchanger replacement due to oxygen
contamination of boiler water.
Heat exchanger failure due to
inappropriate water quality, foreign
matter or debris damage is not covered
under the warranty.
If the piping system attached to this
unit will be chemically cleaned, the
boiler must be disconnected from the
system and a bypass installed so that
the chemical cleaning solution does
not circulate through the boiler.
NOTE: Do not attempt to move the isolators laterally with the weight of the
boiler on them. If it is necessary to move the boiler, remove the weight from
the isolators by raising the equipment before moving.
Install Boiler Trim
Each boiler is supplied with a safety relief valve sized in accordance with ASME
requirements.
Adhere to the following for installation:
1. Connect the safety relief valve to the coupling located in the top of the
boiler. The safety relief valve must be installed with a 6” nipple (8” for
PHW2000) between the boiler and the safety valve. The safety relief valve
must always be installed in the vertical position. The discharge pipe shall
be not less than the full area of the valve outlet. The discharge pipe shall be
as short and straight as possible and so arranged as to avoid undue stress
on the valve.
2. Install pressure-temperature gauge in the side port of a tee installed in the
boiler water outlet. A tee is installed on the nipple.
Water Chemistry Requirements
All water supplies contain some amount of solids, dissolved gases and dissolved
minerals. These materials may promote corrosion, deposition and/or fouling
of equipment. To prevent 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).
FIGURE 5 - INSTALLING SEISMIC SPRING ISOLATION MOUNTS