It is strictly forbidden to use closed vessels (e.g. diaphragm type vessels) for
-
PLUS
boilers without cooling coil !!!
Note!
- PLUS
boilers with cooling coil can be used with closed vessels under, if the
cooling coil is connected to the water-pipe installation in accordance to valid national
standards. Exemplary diagrams of such a connection is presented on the drawings attached
in point 24 to this Operation and Maintenance Documentation.
If applicable standards and recommendations included in this manual are not complied with,
the buyer’s warranty will be voided. The company or individual providing the boiler and
central heating installation service and not the boiler manufacturer shall be
responsible for the effects of incorrect installation.
The
- PLUS
boiler is delivered as an assembled unit. Read this manual
carefully before you start installing and connecting the boiler to the central heating system.
Make sure that all subassemblies are functional and if the boiler has complete equipment
and has not been damaged in transit. Installation of the boiler should be started with
installing the connecting piece with sockets on the supply pipe
The boiler does not require the use of any fixtures such as a heat bank, etc.
(however, they can be used). However, the installation of termoregulatory valve with
61°C on return is required, because it allows for continuous boiler operation with water
temperature ranging between 65 and 95°C, which significantly improves its efficiency and
useful life. Then the boiler can burn any biomass type at 30-120% rated power output.
To protect the boiler against overheating, connect it to a heat receiver capable of
receiving gravitationally the minimum theoretical boiler power (specified in table 2). The
simplest solution is to use a tap water heater without the use of a charging pomp. When
using the
- PLUS
boiler with the cooling coil, the cooling coil is a protection medium,
which shall be connected to the cold water installation. It is recommended to install the
manometer to simplify the monitoring the water condition in the central heating installation.
The boiler temperature control and fan should be installed after all the other
installation works are completed (when installing the fan, before you screw it on, apply a
gasket (included in the set) on the boiler casing to seal connection to the boiler).
The temperature control sensor and thermometer should be installed in connecting
piece pockets on the supply pipe, as instructed by the producer of the driver. An alternative
solution is to insulate it thermally and slightly tighten with a hose clamp on the supply outlet
pipe as close to the heating water connecting piece outlet as possible, making sure that the
sensor adheres closely to the pipe. After these procedures the whole connection has to be
insulated.
The boiler does not need to have a foundation. It can be placed directly on the floor, only in
such a case an insulation plate is required under the boiler, which should protrude before the
boiler to at least 500 mm. The boiler room, where the boiler is installed should meet fire
safety and building law requirements (especially with respect to natural ventilation system).
It is strictly forbidden to use mechanical exhaust ventilation (combustion gas can be
exhausted from the boiler into the boiler room).
The boiler should be placed in a way that ensures access from all sides, which is
necessary for its correct operation and cleaning.
8. CONNECTING THE BOILER TO THE CHIMNEY
The boiler should be connected to the chimney with the use of a breeching. It can rise
towards the chimney and be equipped with a cleanout. For practical reasons (ease of
cleaning operations), the breeching should have a large cross-section than the flue
connecting piece outlet cross-section. It is recommended to place the flue gas inlet into the
breeching about 7 cm below its bottom to create space for depositing soot and ash. It is also
recommended to insulate the breeching thermally.
Any bends in the flue flow direction have an adverse impact on boiler operation. If the
user is forced to use bends, the change in flue gas flow direction should be an obtuse-angle
curve.