Tubing With Heat Exchanger Purging For Special Requirements (Optional); Fig. 35: Tubing With Purging: Dcu 1 Activ, Solenoid Valves Triggered, No Fa - M&C EC-30C Instruction Manual

8.5 Tubing with heat exchanger purging for special requirements
(optional)
Do not mix up the tube connectors for sample gas inlet and outlet.
The inlet and outlet connectors of the heat exchanger are marked
with arrows.
Note
Make sure that all the connections are sealed adequately.
To ensure free removal of the condensate, the stated diameters for
the condensate removal lines can not be decreased!
A fourth optional peristaltic pump can be installed in combination with a second solenoid
valve 2 to provide permanently and slowly (0.3 l/h) fresh sample gas to the inactive cooling
unit. This prevents short peaks of the sample gas concentration due to stagnant gas during
switching between the two deep cooling units.
The tubing with heat exchanger purging for special requirements is shown in Fig. 35:
1

Fig. 35: Tubing with purging: DCU 1 activ, solenoid valves triggered, no FA

1
PCU heat exchanger
3
Heat exchanger DCU 2 (left)
5
Solenoid valve 2 (left, optional for heat
exchanger purging)
Gas IN is the connector of the PCU heat exchanger. The sample gas enters the cooler at
this connection. Gas OUT is the connector at the solenoid valve 1, which sticks out of the
bottom plate of the cooler on the left-hand side. OUT2 is the optional connection to the
fourth peristaltic pump, the gas outlet for the heat exchanger purging.
EC-30C | 1.00.02 +49 2102 935 888
2
90 - 250 l/h
3
0.3 l/h
2
DCU 1 heat exchanger (right, here: active)
4
Solenoid valve 1 (right)
6
Fourth peristaltic pump, optional for heat
exchanger purging
www.mc-techgroup.com
4
5
6
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