Schwank ThermoControl Plus 4M, Operating And Installation Manual

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2 Safety
Installation details
This is a 24VAC Class 2 extra low
voltage temperature controller. Use
only Class 2 rated power supply. Do
not install on voltages higher than
30VAC.
Read all information in this manual
before installing or programming the
appliance. The electrical installation
and wiring must conform to local and
national building and electrical
standards. Check the electrical
equipment regularly. Defective wires
etc. must be replaced immediately.
Be sure that power routed to the
controller has been powered off
before beginning installation or
making any setting. Make sure that
nobody can connect appliance to the
power supply while you are working.
The Schwank ThermoControl Plus 4M
has to be mounted on/at a place,
where it’s not affected by vibrations
or shocks.
Please install the ThermoControl
Plus 4M ensuring conformity to the
wiring diagram
.
E
nsure that the controller and the
heater relays are connected by 16
AWG cable and controller and
sensor connected by a 18 AWG
cable.
Install the room-temperature-
sensor between the radiation
area of two heaters at a height of
2.5 m. Therefore the controller
receives an optimal value of the
nominal temperature.
+
If the controller is installed in a large
building or in a building with
extreme temperature differences
(temperature gradiants), you can
also measure average temperature,
connecting additional room-
temperature sensors for every
single heating zone control circuit.