4.3.2
Inserting a conductor to a
self-
locking
terminal (straight or slanting)
1.
remove the conductor’s insulation
at the length of exactly 9 to 10 mm
(straight)
or 8 to 9 mm (slanting)
2.
maximally push (insert) the
exposed end of the conductor to
the round opening of the terminal.
Correctly inserted conduit cannot be pulled
out of the terminal. Releasing and
taking the conduit out is possible after
pressing lever 3 (white or grey,
according to arrow 3).
4.3.3
Inserting a conductor to a
spring
cage
terminal:
1. remove the conductor’s insulation
at the length of exactly 5 to 6 mm
(exactly!)
2. press the spoon level of the
terminal with a thin screwdriver
3. insert the conduit’s conductor into
the exposed opening in the
terminal
4. release the lever
Correctly inserted conduit cannot be
pulled out of the terminal. Release
of the conduit and possibility of its
removal
takes
place
after
pressing the lever.
1.
9 - 10 mm
2.
3.
8- 9 mm
1.
1.
5 - 6 mm
2.
3.
4.
4.3.4
Ends of the conduits need to be prepared in such manner that after inserted into the
terminal chamber conductors fastened in clamps did not have to be wrapped inside the unit
and the gland’s seal covered the external insulation layer of the cable. It is recommended to
use wire conduits. Cord conduits can be used only with clamping sleeves. Clamping of the
conduit in the gland should be solid enough to keep the conduit inside the MDP during the
attempt of manual pulling it out (and to prevent the conduit from transferring mechanical
forces into terminal’s clamps). That will provide a proper sealing.
4.3.5
The unit is provided with originally deactivated all detectors’ circuits. During installation go
to the “user menu” and activate the required number of detectors (detailed description of
unit configuration can be found in section 5).
4.4
For MDP-Z connect supply conduit “M” of valve to clamps
[VALVE1]
(19-20) or
[VALVE2]
21-22), neutral polarization. The unit is provided with originally
assembled resistors on clamps [VALVE], which need to be REMOVED before
connection.
4.4.1
TABLE specifying selection
of “M” conduit (fig. 3) connecting the valve and the MDP:
The biggest length of “M” conduit [m]
Type of shut-off valves
cross-section of conductor of a conduit
< 1.
5
mm
2
1.5
mm
2
2.5
mm
2
5
(2x2.5)
*
mm
2
MAG-3
14
22
45
2 x MAG-3**
6
10
20
SK-3
6
10
20
MAG-1
6
10
20
MAG-2
22
36
70
other shut-off valves
with COD-1/10A coil
6
10
20
other shut-off valves
with COD-1/3A coil
22
36
70
ZB
30
50
100
NOT
RECOMMENDED
* -
ends of conduit (YDY4x2,5) inside the MDP and Pz1 should be provided with necessary
adapters for 2.5 mm
2
(it is recommended to use WAGO blocks with self-springing clamps)
** - if a single conduit is used (when laying two conduits connected in the MDP - lengths as for
the “MAG-3” column)
MDP-4(8,16)… Instruction Manual
edition 6PU63en
©gazex’2011 v1101
Page 9
/ 24