Electrical Connections - Bühler technologies TC-Standard X2 Notice De Montage

TC-Standard (+) X2
NOTICE
Installing filters limits the maximum approved operating
pressure in the system!
Operating pressure ≤ 2 bar
4.2.2 Flow adapter connection (optional)
When ordering the cooler with the option moisture detector
without filter, it will be factory installed inside a flow adapter.
The connection between the heat exchanger outlet and the
flow adapter inlet does not have tubing included. The connec-
tion G1/4 or NPT 1/4" (flow adapter marked NPT) for the gas
inlet/outlet must be carefully and properly connected using a
suitable screw connection. Here the direction of flow is not
relevant.
4.2.3 Connecting the moisture detector (option)
When ordering the cooler with moisture detector option, it
will be factory installed inside a flow adapter, or for the filter
option installed and connected in the filter head.
4.2.4 Peristaltic pump connector (optional)
Coolers ordered with attached peristaltic pump already have
it installed and wired. Heat exchangers ordered at the same
time are already installed and connected to the peristaltic
pump.
The ø6 mm (0.24 inch) hose nipple for the pump's condensate
outlet must be carefully and properly connected with a suit-
able hose and hose clamp.
Versions with screw connections DN 4/6 or 1/6"-1/4" are sup-
plied with ferrule and knurled nut and must be carefully
sealed with appropriate hose.
NOTICE
Installing peristaltic pumps CPsingle / CPdouble limits the
maximum permissible operating pressure in the system!
Operating pressure ≤ 1 bar
4.2.5 Connecting the heat exchanger
The picture on the left shows the schematics for connecting
two separate heat exchangers.
To minimise gas wash out in the cooler, the two (identical)
heat exchangers must be operated in series (right picture).
This should be done as follows:
1. Gas inlet line to red gas inlet on heat exchanger 2 (pre-
cooling).
2. Connection between gas outlet on heat exchanger 2 and
the red gas inlet on heat exchanger 1 (after-cooling).
3. Attaching the final gas output line to the gas outlet on
heat exchanger 1.
BX440023 ◦ 12/2020
Gas cooler
(two single heat exchangers)
Heat exchanger 1 Heat exchanger 2
gas in
gas in gas out
gas out
condensate out
condensate out
The gas inputs are marked in red.
On glass heat exchangers the correct position of the seal is im-
portant when connecting the gas lines (see image). The seal
consists of a silicone ring with a PTFE sleeve. The PTFE side
must face the glass thread.
Glass
PTFE

4.3 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.
The mains supply of the device must be fused according to the
specifications under technical data.
Potential equalization/static charge
Static charges can result in incendive sparking. Avoid static
charges. Any conductive parts of the cooler must be groun-
ded!
The housing has a connection for an earth/equipotential
bonding conductor. Ensure the housing is adequately earthed
(minimum conductor cross-section 4 mm
Particularly observe the requirements of EN 60079-14!
Gas cooler +
(two heat exchangers in series)
Heat exchanger 1 Heat exchanger 2
gas out
gas out
gas in
gas in
condensate out
condensate out
2
).
Bühler Technologies GmbH 13