TFC Group STTR/F - Manual (Page 11)

Remove
the front
housing Push and hold
internal lock
with a
screwdriver
Setting of Transmitter
Heating / Cooling Selection
To adjust the Transmitter for heating or cooling
function, also for code changes, and to insert /
remove batteries, the Transmitter back housing
must be removed:
Once the back housing is
removed, inside the
Transmitter you can find
a three-position dip
switch. The three
switches control the
temperature span and set
the output for heating or
cooling function. Set the
dip switches according to
your requirements
Temperature span
selection
Span is the difference between
the turn on and turn off
temperatures. For example, in
heating systems, if you set
temperature to 20
0
C and span
to 1
0
C, the heater will operate
when the room temperature drops to 19.5
0
C and
turns off when the temperature rises to 20.5
0
C. Set
the dip switches (positions 1 and 2) according to
your selection of temperature span as in the
following diagram.