7
Timer
1.96
with electronic room temperature control and room temperature sensor type 30076
Assembly and installation instructions
3. Installation
3.1 Fitting
The time switch should be mounted on a flat wall in a dry, dust-free room
with the controls on the front panel easily accessible. The housing is fixed
to the wall with three screws (the location of which is shown on the back
of the housing). As the sensor is a separate unit, the time switch can be
located in an adjacent room.
3.2 Installation of the room temperature sensor
As the sensor detects the room temperature at the point at which it is
located, it should be fixed in a place where the temperature measurement
will not be affected by its surroundings:
• approx. 1.5m above ground level on an internal wall.
• away from doors and windows (draughts)
• in front of curtains, blinds or furniture
• out of direct sunlight
• out of the direct airflow from heating units
• away from other heat sources, such as heating units, lamps etc.
• Connection:
e.g. J-Y (ST) Y 4 x 2 x 0.8 mm;
Cable length: max. 100 mm with 1.5 mm
²
3.3 Setting sensor should be located
The switching differential can be set anywhere between 0.6K and 6K but
is pre-set with the smallest possible differential. If the heating system will
be frequently switched on and off, a higher differential can be set as
follows:
• Switch off mains power and ensure that it cannot be switched on again.
• Remove temperature knobs on front of unit.
• Unscrew and remove front panel.
• Remove PCB carefully.
• Set switching differential on potentiometer P2
Δ
t
• Reassemble unit.
Calibration
P2:
Switching
differential
Control PCB
Summary of Contents for 30076
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