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PRACTIKA 28-33
USE AND INSTALLATION MANUAL
Chapter 3
page 11
Technical specifications and dimensions
Technical dept. - All rights reserved - Reproduction prohibited
The
heat exchanger
is a welded structure of steel plates. The front section of the heat
exchanger consists of a combustion chamber, beneath which the ash tray is situated. The heat
exchanger is a relatively compact structure and it was designed like the so-called "three-way
heat exchanger" - the combustion gases are ducted from three into to one. This design affords
intensive heat exchange and relatively contained overall dimensions for the system.
Ceramic elements,
installed in the combustion chamber, which ensure the best conditions for
the combustion process to take place and efficient use of fuel.
Ash tray
situated at the bottom of the combustion chamber. It collects all ash residue and
makes for easy cleaning of the heat exchanger surfaces of the boiler.
Inlet and outlet openings
for the
water circulating in and out, situated at the back of the
boiler and with female threaded unions (internal), G1½”, used to connect the boiler to the
heating system.
The outlet aperture
is a female union with an (internal) G½” thread, which must be fitted
with a vent valve.
The opening for the combustion gases
is situated at the top of the back of the boiler, and
has a diameter of 150 mm. It must be connected to the chimney flue.
Alarm thermostat
protecting the boiler against overheating.
Pressure gauge.
The external covers
of the boiler
are made from steel.
