TC 1, TC 2, TC 3 · Edition 07.22
EN-3
3 InstALLAtIon
CAUtIon
Please observe the following to ensure that the
unit is not damaged during installation:
– Dropping the device can cause permanent
damage. In this event, replace the entire device
and associated modules before use.
– Avoid formation of condensation in the device.
– Do not store or install the unit in the open air.
– Check max. inlet pressure.
– Use a suitable spanner. Do not use the device
as a lever. Risk of external leakage.
➔
Installation in the vertical or horizontal position,
housing cover/indicators must not point upwards
or downwards. The electrical connection should
preferably be pointing downwards or towards the
outlet.
➔
The device must not be in contact with masonry.
Minimum clearance 20 mm (0.78").
➔
Use the O-rings supplied.
➔
In the case of very large test volumes V
P
, an in-
stalled relief line should be of nominal size 40 to
allow for the discharge of the test volume V
P
.
3.1 Mounting tC 1V to valVario controls
1
Disconnect the system from the electrical power
supply.
2
Close the gas supply.
3
4
5
➔
The O-rings must be inserted in the connectors
of the TC.
➔
The solenoid actuator cannot be rotated on so-
lenoid valves with proof of closure switch VCx..S
or VCx..G.
➔
Connect the TC to the inlet pressure connection p
u
and the interspace pressure connection p
z
of the
inlet valve. Ensure that connections p
u
and p
z
on
the TC and the gas solenoid valve are not reversed.
➔
TC and bypass/pilot gas valve cannot be fitted
together on the same side of the double block valve.
➔
In the case of a VCx combination, it is recommend-
ed to always install the bypass/pilot gas valve on the
rear of the second valve and the tightness control
on the viewing side of the first valve, together with
the connection box.
➔
The TC is secured using two captive, self-tapping
combination Torx screws T20 (M4) inside the hous-
ing. Do not undo any other screws!
Torx T20
VAs 1–3, VCx 1–3
a
b
p
z
p
u
c
max. 250 Ncm
➔
Tighten the screws with max. 250 Ncm.
VAs 6–9, VCx 6–9
a
b
p
u
p
z
c
max. 250 Ncm
➔
Tighten the screws with max. 250 Ncm.
3.2 Mounting tC 1C to combination control CG
1
Disconnect the system from the electrical power
supply.
2
Close the gas supply.
3
4
5
➔
The O-rings must be inserted in the connectors
of the TC.
➔
Use the adapter plate supplied to mount the TC 1C
to combination control CG.
➔
Connect the TC to the inlet pressure connection p
u
and the interspace pressure connection p
z
of the
inlet valve. Ensure that connections p
u
and p
z
on
the CG are not reversed.
6
7
p
z
p
u
8
p
z
p
u
9
10
11
➔
Tighten the screws with max. 250 Ncm.
