Bühler technologies TC-MIDI Guía Rápida página 12

TC-MIDI (+)
4.2 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.
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 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").
The DTV heat exchanger cannot be operated in conjunction
with an automatic condensate drain.
4.2.1 Connecting the filter gas connections (optional)
The connection between the heat exchanger outlet and the fil-
ter inlet already has tubing. The connection G1/4 or NPT
1/4" (filter head marked NPT) for the gas outlet must be care-
fully and properly connected using a suitable screw connec-
tion.
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
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 already has tubing. The connection G 1/4 or
NPT 1/4" (flow adapter marked NPT) for the gas outlet must be
carefully and properly connected using a suitable screw con-
nection.
12 Bühler Technologies GmbH
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 Sample gas pump connection gas lines (optional)
On coolers ordered with attached sample gas pump these are
already installed and wired. Add-on parts ordered at the same
time are already installed and connected to the sample gas
pump.
The sample gas pump may be installed both below and next
to the cooler.
Avoid mixed-material installation, i.e. metal piping to plastic
bodies. If this cannot be avoided in isolated applications,
screw the metal connections into the pump body with care,
never use force.
Lay the lines so the line at the inlet and outlet remains flexible
for an adequate distance.
The pumps are marked IN for inlet and OUT for outlet at the
mounting ring. Be sure the gas line connections are tight.
4.2.5 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
4.2.6 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.
BX440016 ◦ 09/2021