Installing The Cooler Into A Housing; Connecting The Heat Exchanger - Buhler TC-Kit Manual Del Usuario

TC-Kit (+)
ance must especially be a minimum of 10 cm on the air outlet
side. The air intake and outlet must be clear. Heat may other-
wise build up.
Only install the sample gas cooler in housings with sufficient
capability to remove the heat generated. Alternatively, ensure
adequate ventilation. We recommend a minimum of IP pro-
tection class 24.
Access to dangerous parts must at a minimum comply with a
rating of IPxxB, access from the top to dangerous active parts
must at a minimum comply with a rating of IP2xC. The protec-
tion should further protect from mechanical blows and ambi-
ent effects such as moisture and dust.

4.2 Installing the cooler into a housing

Please refer to the drawings in chapter Dimensions basic ver-
sion for the installation dimensions of the respective cooler.
Plan for the respective mounting holes at the installation site.
A suitable opening for the display module must be provided
in the front panel of the housing. For a secure fit we recom-
mend a front panel thickness between 1.5 mm (0.06 in) and
4 mm (0.16 in).
Display unit
The ribbon cable must be plugged into the plug connections
for the display and into the electronics board.
Installing the display,
ribbon cable
4.3 Installation
Run the gas supply to the cooler with a downward slope. The
gas inputs are marked in red and additionally labelled "IN".
If a large amount of condensate accumulates, we recommend
using a condensate trap with automatic condensate drain.
Our condensate drains, 11 LD V38, AK 20, AK 5.5 OR AK 5.2, are
suitable.
BX440028 ◦ 10/2020
Cut-out
Installing the display, plug into
the electronics board
Glass vessels and automatic condensate drains are available
for draining condensate for external mounting below the
unit. When using automatic condensate drains, the sample
gas pump must be installed upstream of the cooler (pressure
operation) to ensure proper function of the condensate drain.
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 drain
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 hung directly from the connecting tube, for hoses the con-
densate 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 6 mm (1/4").
The MTG heat exchanger (in coolers with 2 heat exchangers)
can only be operated with peristaltic pumps.

4.4 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.
Gas cooler
(two single heat exchangers)
Heat exchanger 1 Heat exchanger 2
gas out gas in
gas out gas in
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.
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
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