Product Info

Boiler Piping
Connect the expansion tank to an air separator
only if the air separator is located on the suc-
tion side (inlet) of the system circulator.
Always locate and install the system fill con-
nection at the same location as the expansion
tank connection to the system.
Diaphragm Expansion Tank
Always install an automatic air vent on the top
of the air separator to remove residual air from
the system.
Closed-Type Expansion Tank
It is recommended to pitch any horizontal pip-
ing upwards toward the expansion tank 1 inch
per 5 feet of piping. Use 3/4” piping for the
expansion tank to allow air within the system
to rise.
DO NOT install automatic air vents on a
closed-type expansion tank system. Air
must remain in the system and be
returned to the expansion tank to pro-
vide an air cushion. An automatic air
vent would cause air to be vented from
the system resulting in a water-logged
expansion tank.
Circulator
The PRESTIGE Solo is supplied with a
Central Heating (CH) circulator that is pre-
wired to allow for domestic hot water priority
and to provide circulation for the freeze protec-
tion feature of the boiler control. See Graph 2
on page 82 for pressure drop and minimum
flow rate through the boiler.
Sizing Primary Piping
See Fig. 9 through 13, pages 21 - 23, for rec-
ommended piping arrangements based on vari-
ous applications. Size the piping and system
components required in the space heating sys-
tem, using recognized design methods.
Domestic Hot Water System Piping
The PRESTIGE Solo is provided with a sepa-
rate boiler connection for Domestic Hot Water
(DHW) systems (1” NPT.). This connection
ensures priority is given to the production and
recovery of the DHW.
If an indirect fired water heater is not
utilized cap the (1” NPT) DHW connec-
tion with an adequate amount of pipe
dope to ensure a seal.
See Figs. 9 through 12, page 21-22 for recom-
mended piping to a DHW system.
The piping for the DHW is separate from the
boiler system piping and does not require a pri-
mary / secondary piping configuration.
To wire the DHW circulator to the boiler con-
trol module, reference Section VIII - External
Wiring.
System Piping - Zone Circulators
Connect the PRESTIGE Solo to the system
piping as shown in Fig. 9 page 21 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 mini-
mum of 1 inch.
System Piping - Zone Valves
Connect the PRESTIGE Solo to the system pip-
ing as shown in Fig. 10 page 21 when zoning
with zone valves. The primary / secondary piping
ensures that the boiler loop has sufficient flow.
NOTICE
CAUTION
NOTICE
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