GESTRA UNA 38, Original Installation Instructions

Page: 21 / 48

21
Removing control unit

Detach the cover from the body as described on
page 20.
The jobs described in this section differ
depending on the type of equipment.
To remove the control unit of the UNA 38, proceed
as follows:
 Slacken the union nut (42).

Remove the control unit (8) from the body (3).
To remove the control unit of the UNA 39, proceed
as follows:

Remove the two Allen screws (44).
 Remove the control unit (18) from the body (15).

Remove the regulator gasket (43).
The set screws in the body are not shown
in the diagram for reasons of clarity.

Dispose of the gasket in accordance with
regulations at the location of use.
Cleaning the equipment
Check the equipment at regular intervals for
contamination. The intervals depend on the amount
of dirt in the system. The operator must determine
the maintenance intervals.

Remove any parts that are dirty and cannot be
cleaned properly.
To clean the inside of the equipment proceed as
follows:

Detach the cover from the body as described on
page 20.

Remove the control unit as described on
page 21.
 To remove dirt deposits rinse the equipment
with fresh water and wipe it with a clean, lint-
free cloth.

To remove any persistent residues use a
cleaning agent that is suitable for the material
and carefully wipe the equipment with a clean,
lint-free cloth.

Fix the control unit to the body as described on
page 22.

Attach the cover to the body as described on
page 24.