K4
Changes in models reserved.
Dimensions not binding!
Installation
8.1 Possible Placement
The boiler placement must comply with the project documentation. The flue gas connection must
comply with the valid regulations. Ports of individual pipes for supply of combustion air and dischar-
ge of flue gases must be located in such a way that they are located inside a square with a side of
50 cm by the boiler. The boiler can be placed on a wall with ensured loading capacity only.
At least 0.2 m must be left free beside and above the boiler and at least 1 m must be left free in
front of the boiler for assembly and repairs.
Placement of the boiler with respect to fire regulations:
When installing and operating the boiler it is necessary to keep a safe distance of 200 mm from
materials of combustibility grade A1, A2, B and C (D);
For easily combustible materials of combustibility grade E (F), which quickly burn and continue to
burn even after removal of ignition source (such as paper, cardboard, asphalt and tar paper, wood
and woodfiber boards, plastics, floor coverings) the safe distance has to be doubled, i.e. to 400 mm;
The safe distance should be doubled also where the grade of material‘s reaction to fire has not been
proven.
8.2 Boiler Installation
Using the installation stencil (printed at the bottom of the carton packaging of the boiler) attach the
enclosed bracket to the wall using 3 pieces of dowels with diameter of 8 mm and bolts.
Mount the
K4
boiler on the bracket and using the marked outlets the boiler is connected to the heating
system incl. hot water (if used) and gas distribution pipe.
The connection of condensate outlet should be in compliance with the effective valid EN standards.
Then the flue gas exhaust is connected according to the project documentation. Remove the protection
foil from the front cover.
Grade of reaction to fire
Examples of building materials and products included in the reaction to fire
A1 – incombustible
granite, sandstone, concrete, bricks, ceramic tiles, mortars, fireproof plasters, …
A2 – combustible with difficulty
acumin, izumin, heraklit, lignos, boards and basalt felt, fibreglass boards,...
B – hardly combustible
Beech and oak wood, hobrex boards, plywood, werzalit, umakart, sirkolit,...
C (D) – medium combustible
Pinewood, larch, whitewood, chipboard and cork boards, rubber flooring,…
E (F) – easily combustible
Asphaltboard, fibreboards, cellulose materials, polyurethane, polystyrene,
polyethylene, PVC,…
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