Bulb and capillary tubes:
The bulb and capillary tubes must be protected against damage. In case of
pressure loss in the capillary system, the controller switches on. A correct
measurement of temperature cannot be guaranteed if the bulb and capillary
tube sensor is damaged.
2. Electrical connection and mounting
After removing the cover, the device can be fixed with four screws vertically
as well as horizontally. The distance between the holes to fix the device is
82 mm x 106 mm.
The electrical connection has to be effected according to Figure 1, if the
heater is connected directly to the thermostats. The power supply of the
thermostat has to be protected by a fuse (16 A). The terminal 5 can be
used as signal "temperature achieved".
Figure 1
Max
C16 A
30mA
If the thermostat is used as a surface thermostat, a safe contact between
the sensor and the surface is necessary.
Potential free output:
The switching contact can be used potential-free, e.g. for selecting contac-
tors or other positioning elements (terminals 2, 3 and 5)
Heating system
5