Bühler technologies TC-Kit Kurzanleitung Seite 14

TC-Kit (+)
Glass
PTFE
Pay attention to the appropriate spanner size when selecting
fittings for stainless steel heat exchangers.
PTS/PTS-I gas connections: SW 14 or 9/16"
PTS/PTS-I condensate out connections: SW 22
4.5 Electrical connections
The operator must install an external separator for the device
which is clearly assigned to this device.
This separator
• must be located near the device,
• must be easy for the operator to reach,
• must comply with IEC 60947-1 and IEC 60947-3,
• must separate all live conductors and the status output,
and
• must not be attached to the power feed.
Run the lines so the insulation will not be damaged. If neces-
sary, secure the lines with suitable means and avoid excess
line lengths.
The power supply must be installed according to the following
wiring diagrams and have the respective voltage.
Particularly maintain a discharge time of at least 5 seconds
after switching off the power supply on the version with
switching power supply.
WARNING
Hazardous electrical voltage
The device must be installed by trained staff only.
CAUTION
Wrong mains voltage
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
WARNING
High voltage
Damage to the device in case of insulation testing
Do not proceed insulation tests with high voltage to the
device as a whole!
14 Bühler Technologies GmbH
Electric strength test
This device is equipped with extensive EMC protection. The
necessary tests were carried out at the factory (test voltage
2.1 kV or 2.55 kV DC depending on approval).
If you wish to check the electric strength again yourself, you
can do so on the entire unit. Only test the device with the spe-
cified values using direct current voltage. Testing the electric
strength with alternating current voltage will damage elec-
tronic components. The recommended voltage in this case is
2.1 kV DC, 2 s. Disconnect all supply lines from the device be-
fore testing. Power can be supplied via the mains connection.
4.5.1 Wiring diagrams
Controller board Terminal Function
1 +24 VDC In
2 GND In
3 Connection
to power
and expan-
sion board
4 Connection
to power
and expan-
sion board
14 Analog
output +
15 Analog
output -
Moisture
detector
FF1.1 brown
FF1.2 white
FF2.1 brown
FF2.2 white
PT100 2.1 Pt100
heated line
PT100 2.2 Pt100
heated line
BX440028 ◦ 06/2023