Huber Pilot ONE Unistat T3*0, Operation Manual

Page: 34 / 100

Commissioning
OPERATION MANUAL Chapter 2
Unistat® T300 Series
V2.4.0en/22.07.20//17.12
34
2.10.3.1.1 Mounting the isolating sleeve (locking the expansion vessel)
PROCEDURE

Check the O-ring on the >Isolating sleeve< [27] for damage. Replace the O-ring if necessary.

Remove the >Expansion vessel cap< [22].

Mount the >Isolating sleeve< [27] with the aid of the fitted >Guide rod< [A].

Close the >Expansion vessel cap< [22].

Close the >Venting valve expansion vessel< [21] for all stand-alone units by turning them clock-
wise (turn 90° right as far as it will go).
2.10.3.1.2 Removing the isolating sleeve (unlocking the expansion vessel)
PROCEDURE

Remove the
>Expansion vessel cap<
[22].

Remove the
>Isolating sleeve<
[27]. The permanently fitted
>Guide rod<
[A] remains in the
housing.

Close the
>Expansion vessel cap<
[22].

Fasten the
>Isolating sleeve<
[27] at the place provided on the housing-side of the temperature
control unit.

Open all valves, in case of standard devices the
>Venting valve expansion vessel<
[21] by turning
them anti- clockwise (turn 90° left as far as it will go).
2.10.3.2 Shut-off valves
2.10.3.2.1 Closing the shut-off valves (locking the expansion vessel)
PROCEDURE

Remove the side panel on the temperature control unit in front of the >Internal expansion ves-
sel shut-off< [124]. For the exact position please refer to the wiring diagram from page 99 in sec-
tion
»Annex«
.

Close the respective >Internal expansion vessel shut-off< [124] by clockwise turning (turn 90°
right as far as it will go).

Install the side panel.
2.10.3.2.2 Opening the shut-off valves (unlocking the expansion vessel)
PROCEDURE

Remove the side panel on the temperature control unit in front of the >Internal expansion ves-
sel shut-off< [124]. For the exact position please refer to the wiring diagram from page 99 in sec-
tion »Annex« .

Open the respective >Internal expansion vessel shut-off< [124] by counter-clockwise turning
(turn 90° left as far as it will go).

Install the side panel.
Exemplary illustration
of the shut-off valves