STIEBEL ELTRON RTF 24.06.2003 - 19.12.2004 - Manual (Page 5)

5
English
Type RTF
Switching Capacity ~ 12(2) A 230 V
Range ca. 10 ºC . . . 45 ºC
Set-back (if required) 5 K
Switching Differential 1 K
H x W x D 81,5 x 81,5 x 44,5 mm
Class Ι
Protection rating IP 20
Sensor cable length (DIN 44574) 4 m
Approvals see print on unit
Sensor Values
Temperature R [kOhm] U [V]
20 °C 2,43 2,22
10 °C 3,66 2,49
40 °C 1,15 1,63
30 °C 1,65 1,92
50 °C 0,82 1,35
various frames which belong to the
controller.
To install the controller take the following
steps:
– Carefully remove the temperature
selection knob (2) with the help of a
screwdriver.
– Remove the locating screw (7) and
remove the cover and frames (8,9 and 10).
– Connect the electrical connections in
accordance with the wiring diagram below
and as follows:
! The sensor probes are connected to
the 2 terminals marked ‘F’.
! The incoming mains electricity
connection should be connected as
follows;
!
Live to ‘L’
! Neutral to ‘N’
! Earth to Earth terminal on the back
box.
! The heating mats connections should be
as follows;
!
Live to ‘LH’
! Neutral to ‘N’ (common with the
incoming mains supply)
! Earth to Earth terminal on the back
box
– Fit the controller into the back box using
the locating screw holes on the back plate
(11) .
– Refit the frames and cover (8-10).
The Instructions for the controller
and the under-floor heating should
be kept together.
2.3 Set-back Temperature
By using the terminal TA in conjunction with
an external time-switch or a switch, a set-
back facility, reducing the set temperature by
5K is possible.
3. Technical data