Controller operating manual
15.11.2020 – Version 1.1
TCS.2 series –
thermofin
®
control system 2
nd
generation
Page: 65/162
Operating manual - translation into English © thermofin GmbH
The following refrigerants can be selected by the user:
Refrigerant
Name
R22
HCFC (containing chlorine, partially halogenated)
R717
Ammonia NH
3
(single substance, natural refrigerant)
R134a
PFC / HFC (single substance, chlorine-free)
R404A
PFC / HFC (mixture, chlorine-free)
R410A
PFC / HFC (mixture, chlorine-free)
R507
PFC / HFC (mixture, chlorine-free)
R290
Propane (single substance, natural refrigerant)
R723
Ammonia / DME (mixture, natural refrigerant)
R407C
PFC / HFC (mixture, chlorine-free)
R407F
PFC / HFC (mixture, chlorine-free)
R744
CO
2
(single substance, natural refrigerant)
R449A
PFC / HFC (mixture, chlorine-free)
R513A
PFC / HFC (mixture, chlorine-free)
R422D
PFC / HFC (mixture, chlorine-free)
R1234ze
HFO (partially halogenated fluorine olefins)
R1270
Propene (single substance, natural refrigerant)
Pressure
Display in bar
If a refrigerant is used which is not available for the selection, the unit “bar” must be set. All displays
in the TCS then take place in “bar absolute”. If the refrigerant used is stored here and selected, all
displays are in °C. The actual value is then the condensing temperature.
Pressure measuring range
The standard pressure measuring range for thermofin
®
pressure sensors is 0-40 bar of relative
pressure. If you use other pressure sensors, the pressure measuring range of the TCS must be
adapted to the pressure sensor used. However, only pressure sensors can be used whose output
signal is a standardized 4… 20 mA signal and whose zero point is at 0 bar of relative pressure.
Lower limit of pressure measuring range:
5 bar of relative pressure
Upper limit of pressure measuring range:
100 bar of relative pressure
Absolute correction (air pressure)
To convert pressure into refrigerant temperature, it is not the relative but the absolute pressure that
is required. Therefore, the air pressure in hPa (mbar) from the installation location of the device serves
as the necessary correction value.
Factory setting:
1,013 bar = 1013 mbar (hPa)
Sea level air pressure
