Salus RT 10 User manual

SALUS RT 10 Triac
Electronic room thermostat for radiant panel,
radiator and convector heating systems
Installation and
operating instructions
General
Congratulations on choosing to purchase
a SALUS room thermostat. In selecting the
room temperature controller that can boast
some considerable advantages over its con-
ventional, mechanical counterparts. This
controller is very simple to use with its stand-
ard rotary knob and, with its state-of-theart
electronics, it can offer you unparalleled ease
of control for all manner of heating systems.
The RT 10‘s features, which are described
in detail below, ensure that you can control
your heating system in a precise, easy and
energy-saving way.
Technical characteristics
Pulse width modulation (PWM)
Radiant panel heating systems tend to have
a problem with overshooting, i.e. rooms
continue to be heated even after the desired
temperature has been reached and the valve
has been closed. The RT 10 solves this prob-
lem electronically and especially effectively
using what is known as pulse width modula-
tion. By continuously comparing set temper-
ature with actual temperature, the lengths
of opening times for the valve actuators are
regulated in such a way that the temperature
is almost completely prevented from exceed-
ing or falling below the set temperature. In
this way, the required temperature setting is
regulated in a precise and convenient way.
Note: When the RT 10 is used with radiator
or convector heating systems, pulse width
modulation can be switched off if necessary
(see ‚Basic settings‘ section).
Valve protection function
To ensure that valves remain movable and
ready for use even when they are unused for
considerable periods – e.g. over the summer
– the RT 10 includes a valve protection func-
tion. Briefly once a week, even when there is
no requirement for any heat, the valve actua-
tors open the valves that they control.
Note: The valve protection function can be
switched off if it is not required (see ‚Basic
settings‘ section).
Temperature reduction
Timed and demand-oriented heating con-
trol are amongst the best ways of managing
heating energy in an economical way. The
RT10 has an integrated temperature reduc-
tion function which enables you to automati-
cally reduce the set temperature by 4K with
no need for any costly add-on installation on
the boiler controller. This ‚night reduction‘
can be activated by an external signal, e.g.
time control from a terminal strip, or using a
standard external timer.
Installation
The RT 10 room thermostat is designed as
an electronic temperature controller for the
electrical fine adjustment of hot-water based
heating systems, and is used for control-
ling electro-thermal valve actuators or other
electrical devices. It is vitally important that
the maximum switching current specified in
the technical specifications should not be
exceeded! We are not liable for any form of
improper use.
This equipment must only be installed by
anauthorised, qualified engineer, and only in
accordance with the wiring diagram. Installa-
tion must also be in accordance with the lat-
est VDE regulations as well as your electricity
supplier‘s regulations. The system must be
in a de-energised state whilst installation is
carried out, and all safety instructions must
be followed to the letter.
The control may only be mounted on a non-
conductive surface. Find a position for the
thermostat where it is not covered by cur-
tains, furniture or anything else. The control-
ler must not be installed too close to any heat
source (lights, stove, direct sunlight etc.),
nor should it be installed in a position where
it will be exposed to draughts. The control-
ler must be installed in a suitable location in
order for room temperature to be monitored
accurately and accordingly regulated with
precision.
Important: The thermostat must be discon-
nected from its power supply before its hous-
ing is opened.
Wall mounting
The housing cover must be separated from
the base plate before the controller is fitted.
Follow the steps listed below:
Carefully pull off the adjuster wheel.1.
Remove the screw from under the2.
adjuster wheel.
Open the housing by pulling off its cover3.
on the adjuster wheel (right) side.
Now, using the screws supplied, screw the
base plate firmly to the wall or the flush-
mounted socket.
Connection
The thermostat must be wired in accordance
with the wiring diagram below:
RT 10 230 V Model
Terminal
Lead for temperature reduction
N Neutral conductor supply lead
L 230VAC power supply
Switch output (valve actuator, terminal
strip)
Basic settings
The jumpers on the PCB can be used to turn
on or off various functions of the RT 10:
RT 10 Jumpers
Switch Function ON OFF
VP Valve protection
function
PWM Pulse width
modulation
Temperature
reduction
The factory setting for all these functions is
ON. You can change these settings accord-
ing to your own requirements by moving the
contact terminals on the jumpers.
Important: The contact terminals should not
be removed.
As long as the installation is carried out to a
professional standard, the criteria for protec-
tion class II will be satisfied.
Operation
The RT 10 electronic room thermostat is
used for regulating the temperature in dry,
enclosed rooms with a normal environment
and maximum humidity of 95% (noncondens-
ing).
It is extremely simple and convenient to set
the desired room temperature using the
rotary knob. This electronic control system
ensures that the set room temperature is
maintained virtually without fluctuation and,
when required, automatically activates a
reduction in temperature.
Never use anything other than a soft, dry
cloth to clean the unit. Never use any clean-
ing agents containing solvents or any sharp
objects to clean the unit!
Technical data 230 V
Product no.: 412.102
Operating voltage: 230VAC / 50Hz
Electronic switch output
Max. switching current: 10 (2) A
Rated impulse voltage: 4000 V
Max. no. of valve actuators: 5 units - 3 W
Temperature range: 5°C - 30°C
Degree of protection through casing: IP 30
Automatic function: type 1.C (EN 60730-1)
Degree of contamination: 2 (Household)
Dimensions W/H/D in mm: 75 / 75 / 27
Operating temperature: 0°C - 50°C
Storage temperature: -25°C - 65°C
Control pollution: Normal