Flow Adapter Connection (Optional); Connecting The Moisture Detector (Option); Electrical Connections; Connecting The Filter Gas Connections (Optional) - Bühler technologies Peltier TC-MINI Guía Rápida

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If the sample gas pump is located at the cooler outlet (suction
operation), we recommend using glass condensate traps or
peristaltic pumps.
Connecting the condensate drains
Depending on the material, build a connecting line with fit-
tings and tubing or hose between the heat exchanger and
condensate drain. For stainless steel the condensate drain can
be suspended directly to the connecting tube, for hoses the
condensate drain must be secured separately using a clamp.
The condensate drain can be mounted directly to the heat ex-
changer.
Condensate lines must always be installed with a slope and a
minimum inside diameter of DN 8/10 (5/16"), with passive dis-
charge via traps or automatic condensate drains. Use screw
joints with a minimum inner span of 7 mm, sold separately as
accessories. The MTG heat exchanger in glass cannot be oper-
ated in conjunction with an automatic condensate drain.
Connecting the heat exchanger
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

4.2.1 Connecting the filter gas connections (optional)

The connection G1/4 or NPT 1/4" (filter head marked NPT) for
the gas outlet must be carefully and properly connected using
a suitable screw connection.
When ordering the cooler with the option filter without Mois-
ture detector, a bypass may be connected to the filter head.
The filter head is intended for a G1/4 internal screw thread
which is plugged at the factory. To use it, unscrew the plug
and screw in a suitable screw connection. Pay attention to
leaks.
NOTICE
Installing filters limits the maximum approved operating
pressure in the system!
Operating pressure ≤ 2 bar
BX440015 ◦ 05/2021

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.

4.3 Electrical connections

NOTICE
The connection must be made by a trained professional.
CAUTION
Wrong mains voltage
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
The sample gas cooler features plug-in connectors at the top
for connecting the power supply and the status outputs.
The unit features an output for status messages. Please refer
to the technical data for ratings.
An alarm is triggered if the temperature of the cooler is out-
side the specified limits. It does not indicate if the alarm was
triggered due to excess temperature or insufficient temperat-
ure.
When the moisture detector (optional) is installed, an alarm is
activated if the moisture is still present in the prepared
sample gas. This is the same alarm output as for the temper-
ature.
X2.1 X2.5
X2.10
X2.6
X1.1
DIP Switch / Settings
LED green
LED red
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