TriangleTube PRESTIGE Solo PA 110, Installation & Maintenance Manual

Page: 29 / 112

17
CHAPTER
4
CHAPTER 4 - BOILER PIPING
4.9. Circulator
A circulator with flow check must be utilized with the
PRESTIGE Solo. The circulator, when wired directly to
the PRESTIGE Solo, will allow for domestic hot water pri-
ority and provide circulation for the freeze protection
feature of the boiler control. See the Graphs in
Chapter
19 on page 89 for pressure drop and minimum flow
rate through the boiler.
4.10. Sizing Primary Piping
See Fig. 9 on page 18 through Fig. 13 on page 22 , for
recommended piping arrangements based on various
applications. Size the piping and system components
required in the space heating system using recognized
design methods.
4.11. Domestic Hot Water System Piping
See
Fig. 9 on page 18 through Fig. 12 on page 21
for recommended piping to a DHW system. This rec-
ommended piping configuration ensures priority is
given to the production and recovery of DHW.
The piping for DHW is separate from the boiler system
piping and does not require a primary / secondary pip-
ing configuration.
To wire the DHW circulator to the boiler control mod-
ule, reference
Chapter 8 on page 35 .
4.12. System Piping - Zone Circulators
Connect the PRESTIGE Solo to the system piping as
shown in
Fig. 9 on page 18 when zoning with zone
circulators.
The installer must provide a separate circulator for each
zone of space heating.
To ensure an adequate flow rate through the
PRESTIGE Solo, the boiler supply and return
piping size must be a minimum of 1 inch for the
PRESTIGE Solo 80/110, 1-1/4 inch for the PRES-
TIGE Solo 155/175/250 and 1-1/2 inch for the
PRESTIGE Solo 299/ 399.
NOTICE
4.13. System Piping - Zone Valves
Connect the PRESTIGE Solo to the system piping as
shown in
Fig. 10 on page 19 when zoning with zone
valves.
To ensure an adequate flow rate through the
PRESTIGE Solo, the boiler supply and return
piping size must be a minimum of 1 inch for the
PRESTIGE Solo 80/110, 1-1/4 inch for the PRES-
TIGE Solo 155/175/250 and 1-1/2 inch for the
PRESTIGE Solo 299/399.
4.14. System Piping - Through Boiler
Primary / secondary piping is preferred, but is not re-
quired for smaller systems (1 to 3 zones) provided that
at least the minimum flow rate through the boiler is
maintained at all times. The circulator must be sized
to overcome the pressure drop through the system as
well as the Prestige Solo. See the Graphs in
Chapter 19
on page 89 for pressure drop and minimum flow rate
through the boiler.
Fig. 11 on page 20 illustrates a multiple zone valve
system with a single system/boiler circulator. A by-pass
loop with a pressure differential valve must be installed
on the system piping.
Fig. 12 on page 21 illustrates a single zone system uti-
lizing the boiler circulator as the system circulator.
NOTICE