Metrohm 806 Exchange Unit - Manual (Page 23)

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3 Installation
806 Exchange Unit
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Figure 3 Thermostat casing
Mount the thermostat casing as follows:
1 Loosen the tubing connection to the glass cylinder.
2 Unscrew the light protection.
3 Screw out the glass cylinder with holder.
4 Loosen the screw nipple on the glass cylinder.
5 Roll the O-ring out of the groove and upwards on the glass nozzle.
Do not use any hard items to remove the O-ring, otherwise the edge
of the glass nozzle may chip off!
6 Replace the union nut of the cylinder by the sealing ring of the ther-
mostat casing (threaded side upwards).
7 Slightly grease the O-ring and attach it on the glass nozzle.
8 Fasten the sealing ring with the screw nipple.
9 Insert the glass cylinder with holder into the thermostat casing and
press firmly.
10 Tighten the thermostat casing with the cylinder in the body.
11 Connect the thermostat tubings.