System Piping - Special Application; System Piping - Multiple Units Installation - Prestige Solo 110 Installation And Maintenance Manual

4.0 Boiler Piping
perature back to the boiler in radiant heating
applications.
The design and construction of the PRESTIGE
heat exchanger allows the installation of the boil-
er on systems with non - oxygen barrier tubing.
CAUTION
DO NOT install a SMART tank along
with the PRESTIGE in systems with
non-oxygen barrier tubing. Failure to
comply could result in premature failure
of the SMART tank.
The boiler water supply temperature can be
maintained by the PRESTIGE, eliminating
the need for a mix system to achieve the
desired temperature.
It is recommended for the installer to install a
high temperature limit to ensure that the pri-
mary supply temperature does not exceed the
maximum allowable temperature for the radi-
ant tubing.
Size the system piping and circulator to pro-
vide the flow needed for the radiant system.
NOTI E
To ensure an adequate flow rate through
the PRESTIGE Solo, the boiler supply
and return piping size must be a mini-
mum of 1 inch for the PRESTIGE Solo
80/110, 1-1/4 inch for the PRESTIGE Solo
155/175/250 and 1-1/2 inch for the PRES-
TIGE Solo 299/399.
NOTI E
The addition of the high temperature limit
is important if the PRESTIGE is connect-
ed to a domestic hot water system, which
requires a high primary supply water
temperature.
4.16 System
Application
If the boiler is used in conjunction with a
chilled water/medium system, the boiler and
chiller must be piped in parallel. Install
flow/check valves to prevent the chilled medi-
um from entering into the boiler.
If the boiler is used to supply hot water to the
heating coils of an air handler where they may
be exposed to chilled air circulation, install
flow/check valves or other automatic means
to prevent gravity circulation of the boiler
water during cooling cycles.
4.17 System Piping - Multiple Units
Installation
Use a balanced manifold system as the prima-
ry / secondary connection to the space heating
piping as shown in Fig. 13 page 23.
Maintain a minimum of 6 inches [153 mm] of
clearance between units to allow for servicing.
For the space heating piping refer to the appli-
cations mentioned in this manual or use recog-
nized design methods.
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Piping - Special