LICON PK Montageanleitung Seite 4

• The convector is to be connected to the heating system by means of two nipples with the G1/2
internal thread (the nipples are the component parts of the heat accumulator). We recommend
that the heat exchanger should be connected to the heating system by means of two stainless
steel flexible hoses (included in the delivery). This, in practice, improves the access to the area
under the heat accumulator, without having to disconnect the heat accumulator from the hea-
ting system, for example for cleaning purposes. In the course of installation, make sure that
the heat accumulator nipples are secured by means of a wrench in order to eliminate the
torsional moment acting on the nipples during the tightening operation – see Fig. 1. If this
procedure is not observed, the soldered joints may be damaged and, consequently, the
accumulator becomes leaky!
• The maximum working pressure of the heat accumulator is 1.2 MPa, the maximum temperature
of the heat transfer fluid is 110°C (unless otherwise specified).
• Up to the PK floor convector depth of 15 cm, we recommend that the heat accumulator's heat
transfer fluid inlet should be connected at the side at the window; for the depths over 15 cm,
we recommend that it should always be connected to the top row. For the PKVT floor convec-
tors, we recommend that the inlet should always be connected to the tube whose distance
from the ventilator is greater. For the width of 42 cm, the OR-J3 heat accumulator has been
used; in this heat accumulator, the heat transfer fluid enters the heat accumulator through
two tubes, and returns through a single tube.
• To ensure the correct air circulation, it is recommended that the convector should be placed
as close to the glassed-in area as possible, namely, in such a manner, that the heat accumula-
tor (in the event of the PK type) or the ventilator (in the event of the PKVT type) 'draws in'
the cold air from the area at the window. With the PK types of the depth of 30 cm or 45 cm,
the positioning of the heat accumulator in the sheeting has considerable influence on tempera-
ture distribution in the room. The convector space is divided by means of a longitudinal dividing
partition into two parts. The heat exchanger's position has considerable influence on the warm
comfort in the room.
Position of the heat accumulator on the side of the room
The descending flow of cold air is entering the convector case. Then, the upward flow
of the heated air contributes to the natural air circulation in the room, creating an air curtain
in front of the window surface. This arrangement is appropriate in the rooms where the convector
is the only heating source and the proportion of the loss of heat through the window to the overall
loss of heat of the room is considerable, that is, about 70 % to 100% - see Fig. 2.
Position of the heat accumulator on the side of the window
This position is appropriate in the event that the convector is the only heating source in the room;
it is only suitable in the rooms where the loss of heat through the room prevails and the proportion
of the loss of heat through the window is low (no more than 20 %). The distance between the shaft
and the window should be set as small as possible in order that the upward heated air flow may
pass to the window in a fast, unobstructed manner. However, a too great drop in the temperature
of the heat transfer fluid should not occur. Then, the cold air flowing from the area of the window
is colliding with the upward flow of the heated air, and the cold air flow might prevail (the upward
flow of the heated air might get 'cut off'). The collision of the air flows may result in irregular
heating of the room – see Fig. 3.