Brochure

RESIDENTIAL COMBI BOILERS
• A hot water tap is opened causing
incoming potable water to ow
through the at plate heat
exchanger.
• Heated boiler water, supplied from
the re tube heat exchanger, ows
through a diverter valve and into
the at plate heat exchanger where
it prioritizes heating the incoming
domestic water to the designated set
point temperature.
• The integrated boiler pump circulates
boiler water through the re tube
heat exchanger to keep it at set point
temperature.
• When there is a call for space
heating, the diverter valve directs the
heated boiler water into the external
space heating loop.
With a 10:1 turndown ratio, the
ProLine
®
XE combi boiler has the
ability to modulate combustion to
maximize efficiency and prevent short
cycling when there are small heating
demands.
ENERGY
CONSERVATION
The ProLine
®
XE combi boiler
combines space heating and
domestic hot water (DHW) in one
appliance, providing a space saving
choice for builders and specifying
engineers.
COMPACT SIZE
ProLine
®
XE combi boiler provides up
to 74% more heating capacity than
other combi boilers. For domestic hot
water (DHW), it is also sized large
enough to provide 2.6 gpm (110
model) to 4.8 gpm (199 model) at a
77°F temperature rise.
MORE HOT WATER
DOMESTIC HOT WATER AND SPACE HEATING
HOW IT WORKS:
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