GESTRA Gestramat CW 41, Original Installation Instructions

Page: 15 / 40

15

Mount the equipment in the desired installation
position.

Connect the end connections of the equipment
properly to the pipes.
To operate the diaphragm actuator in an MCW 41
or MCW 41/4, the drive must be connected to a
compressed air supply provided at the installation
site. This compressed air supply must ensure a
pressure of 3 to 10 barg. It is connected to the
Ermeto GE 6-L coupling.

Make sure that the on-site compressed air line
is connected correctly.
 Make sure that the equipment is safely mounted
and that all connections are made correctly.
Operation
Adjusting the cooling-water outlet
temperature
You can set the desired cooling-water outlet
temperature on the equipment to suit the operating
conditions. To do so, proceed as follows:
 If necessary, push the adjusting key (21) from
underneath up into the hole of the adjuster until
it locks into place.

Read the scale value (22) on the edge (23), as
set by the adjusting key.
If the scale value does not match the desired outlet
temperature, you can change the setting. The table
overleaf contains the scale values for the outlet
temperatures of the various types of equipment.

To lower the scale value, screw the adjusting
key further into the body.

To increase the scale value, screw the adjusting
key further out of the body.

The table below provides a rough guide for
setting the desired outlet temperature during
commissioning.

To prevent unwanted adjustments, take out the
adjusting key.

Keep the adjusting key in a place accessible to
authorised personnel.
You can adjust the outlet temperature precisely
during commissioning. As the equipment requires
approximately 10–15 minutes to adapt to the
modified outlet temperature, you must always wait
15 minutes after changing the temperature setting.
 Read the current outlet temperature on the
thermometer.
 To raise the outlet temperature, unscrew the
adjusting key by about a quarter turn.
 To lower the outlet temperature, screw the
adjusting key into the body by about a quarter
turn.
 Wait 15 minutes until the system has adapted to
the new setting.
 Read the current outlet temperature on the
thermometer.

Repeat the above steps until the desired outlet
temperature is displayed.