Kastor VIVA Electrical sauna stoves - Manual (Page 13)

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2.4. Installation and mounting of the electric sensor (6 T, 8 T)
The electric sensor is placed on the sauna wall on the centre line of the heater 40 cm from the ceiling. There
are two ways to mount the electric sensor. In surface mounting, the cover of the sensor is attached to the sauna
wall (picture 2A). The sensor is then attached to the cover and the cable clamps on the bottom part of the
cover are put in an upright position. The clamps are then bent around the cable and the sides of the cover sheet
are placed over the sensor (picture 2B). In flush mounting, the sensor is attached directly to the wall (picture
2C).
2.5. Connecting a separate CC control panel (6T, 8T)
There are no limitations as to how close or far the control panel should be installed compared to the heater.
The control cable used in CC control panel is a six-conductor, low-voltage cable, which is connected to the
printed board of the heater according to the connecting diagram. The cable of the electric sensor is connected
to terminals 17 and 18 on the CC control panel. See further instructions in the control panel user guide.
3. INSTRUCTIONS FOR THE SAUNA ROOM
3.1. Sauna room
The walls and the ceiling should be well-insulated to keep the heat in the sauna room. Wood is the best surface
material – it warms up quickly and emits heat evenly and softly. Stone and brick surfaces are not
recommended, because they absorb heat too effectively, requiring thus a bigger heater. For example, 1 m
2 of
stone surface nearby the heater corresponds to 2 to 3 m
3
of additional volume in the sauna room. Glass doors
and windows have a similar effect. Log walls require 25 % additional capacity of the heater. Excessive room
height also adds to the overall volume of the sauna room. The sauna room should not be too high, because the
temperature decreases when going downward. The optimal distance between the ceiling and the upper sauna
bench is 110 to 120 cm. It is recommended to place the heater as near the floor as possible within the safety
distances. See table 1 for recommended sauna room volumes.
3.2. Right ventilation
It is essential that the ventilation of the sauna room is effective enough. In home saunas the air (the volume of
the sauna room) should change about six times per hour. The sauna can be either ventilated by gravity
(traditional or natural ventilation) or by an exhaust air blower (mechanical ventilation).
Mechanical ventilation (pictures 3 and 4):
The best way to lead the incoming fresh air into the sauna room is directly from outdoors through a pipe with
a diameter of about 100 mm, located at least 500 mm above the heater (a). Fresh air can also be led into the
room from underneath the heater, near the floor (b), but it should not flow directly along the floor to the
exhaust air ventilator. Pay special attention to effective mixing of fresh air with the air and steam in the sauna
room. Exhaust air is led out preferably underneath the sauna benches (c), as afar as possible from the fresh air
opening. Exhaust air can also be led out through the shower room, e.g. underneath the door.
(e). The sauna room should also be equipped with a so-called drying vent (f), which should be located behind
the benches, near the ceiling. Close the drying vent when warming up and having a sauna, and open it for
drying the sauna room afterwards. The exhaust air blower should be switched on when having a sauna and also
afterwards for drying. The exhaust air blower can be switched off during the pre-heating period.