M&C TechGroup ECM-ExII Operator's manual - Manual (Page 18)

18
Gas sampling and gas conditioning technology 3-3.0EX-ME
Replace the heat exchangers as follows:

Dry and clean the push-in opening in the aluminium cooling block with a cloth;

Smear the push-in opening with a thin and equal layer of thermal conductivity paste (part no.
90K0115);

Smear the heat exchangers with a thin and equal layer over the whole surface with thermal
conductivity paste (part no. 90K0115) to ensure good conduction of heat. It is best to close off
the condensate removal of the heat exchangers tube with adhesive tape to prevent any of the
thermal conductivity paste from getting into the heat exchanger;

Lightly push the heat exchangers with rotation back into the push-in opening of the cooling
block and press to the upper block;

Remove the adhesive tape and any surplus thermal conductivity paste;

Reconnect the hoses.
N O T E ! !
Do not mix up the hose connections; gas outlet and gas inlet are marked
with arrows!
Mounting the Borosilicate glass heat exchangers please notice:

Check the PTFE/Silicon locking rings for damage. In assembly, the locking rings must have
the PTFE side facing the medium, otherwise the required degree of sealing cannot be
guaranteed!

Do up the red GL coupling rings hand-tight by turning them to the right;
To ensure a safe connection of the sample gas respectively condensate tubes to the Borosilicate
glass heat exchanger(s) we recommend the use of GL-couplings.
We like to advise you.
18.2 CLEANING THE FINS OF THE CONDENSER
Dust on the fins of the condenser reduces the cooling capacity. Therefore it is necessary to clean the
fins from time to time. The following steps are recommended:

Shut off the gasflow;

Dismantle the tubing for gas in- and outlet;

Unscrew the cooler hood and remove it carefully;

Clean the fins carefully with compressed air;

Re-install the cooler hood;

Connect the tubing for gas in- and outlet.
N O T E !
Do not mix up the hose connections; the inlet and outlet connections
of the heat exchangers are marked with arrows.
.