Installation Of The Heating Boiler; Requirements; Check Door Tightness; Setup Of The Heating Boiler - Sunsystem BURNIT WBS Active Serie Instrucciones De Montaje Y Uso

6. INSTALLATION OF THE HEATING BOILER

The assembly, installation and setup of boiler must
EN
be performed by a technician authorized for such
*
operations.
Installer must indicate to the user of the installation
the minimum clearances from flammable materials
and liquids.

6.1. Requirements:

- Boiler room must be frost-proof;
- Boiler room must allow for continuous access of air
necessary to maintain combustion;
- Boilers must not be placed in inhabitable rooms;
- All boiler rooms must have correctly calculated vent
depending on the boiler output. The vent must be
protected by means of a net or grate.
The size of the vent is calculated according to the formula:
А = 6,02 * Q - where:
А – area of the vent in cm
Q – boiler output in kW
- Remove the packaging without polluting the environment
- Observe building supervision instructions, in particular
the existing Ordinance on combustion devices and storage
of combustion materials, on building requirements
applicable to installation sites and on ventilation;
- The boiler must be placed on a foundation whose surface
area is larger than the base of the heating boiler according
to diagram 1;
- The boiler must be placed in a position which allows for
the easiest possible cleaning and servicing;
- Installation must be carried out according to installation
diagram 1 which shows the boiler housing;
- No objects made of flammable materials or liquids may be
placed on/near the boiler;

6.2. Check door tightness

Open boiler doors. Place paper strips on the four sides of
the doors and close leaving part of the strips protruding
outside. Pull the paper strips. If the strips tear upon pulling,
doors seal tightly.
Caution! Inadequate adjustment of the hinges may
*
result in air being sucked in through the doors and
the boiler burning uncontrollably.

7. SETUP OF THE HEATING BOILER

7.1. Connecting the boiler to a chimney

Boiler-to-chimney connection must always comply with the
existing standards and rules. The chimney must provide
sufficient draught for evacuation of the smoke under any
conditions.
The proper functioning of the chimney requires adequate
sizing of the chimney itself since the draught it produces
affects combustion, boiler's output and life span.
The draught created by the chimney is in functional relation
to its cross-section, height and the roughness of its interior
walls. No other appliance may be connected to the chimney
serving the boiler. Chimney diameter must not be smaller
TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
,
2
6
than the flue outlet of the boiler. Flue outlet must be
connected to the chimney opening. In terms of mechanical
properties, the flue outlet must be sturdy and properly sealed
(to avoid gas leak) and allow for easy access for cleaning on
the inside. The inner section of the flue outlet must not be
greater than the effective section of the chimney and must
not narrow. Avoid using elbow joints.
The chimney cleaning opening has to be in its lowest part.
The chimney's wall has to be threeplied where the medium
layer is from mineral wool. The thickness of the insulation is
not less than 30 mm when the chimney is setting up inside
the house and the thickness is 50 mm, when the setting up
is outside.
The inner diameter of the chimney depends on its real height
and the power capacity of the boiler (see diagram 4).
Please entrust choosing a chimney and its installation by a
qualified professional. The required distance between the
boiler and the chimney is 300-600 mm.
Diagram 4. Boiler size and chimney parameters
/see page 69/
Data in the tables are for indicative purposes.
Draught depends on the diameter, height, uneven
sections along the chimney surface and differences

in temperature of combustion products and
outside air. We recommend that you use chimney
fitted with flue terminal. Heating specialist must
calculate the precise sizing of the chimney.

7.2. Connecting the safety heat exchanger

* Such connection must be performed by a technician
/ service shop authorized for such operations.
The heating boiler is equipped with safety heat exchanger
(cooling circuit). It connects to the water system through a
thermostatic valve. In case of overheating, the thermostatic
valve feeds in cold water from the water mains which passes
through the heat exchanger and absorbs the heat in the
boiler. The water is then discharged into the sewage system.
This arrangement ensures safe evacuation of the excess heat
without the need for additional energy. This guarantees that
the water in the boiler will not exceed the maximum safe
level of 95°C.
The minimum operating pressure of the cooling water in the
safety heat exchanger must be within the range 2÷10 bar.
A flow rate of at least 12 l/min is required. Connect the
safety heat exchanger according to the hydraulic diagram
using thermostatic valve. Install a filter on the inlet before
the thermostatic valve.
Diagram 5. Connecting the safety heat exchanger
/see page 69/
1. Water supply network (pressure 6-10 bar)
2. Drainage (sewerage)
3. Boiler WBS Active
4. Safety heat exchanger inlet
5. BVTS valve sensor
6. Safety heat exchanger outlet