Connection of the elements to the internal control unit TT3000
To connect the elements of the heating system to the basic V/I module MD1, use a cable with the
diameter of wires 0.75 mm
2
. Connect the cable according to the wiring diagram specific to the case on
hand to the designated terminal clip. Connecting all possible elements of the heating system can be
seen on the diagram below. The places of connecting the elements to the connecting clamps are
marked with a dark dot. Standard and optimal connections of the utility room elements are given later
in this chapter 3.4.1.
T
E
1
T
E
2
GN
D
1
2
V
P
W
M
+
Q
1
3
1
2
V
D1
D2
D3
D4
D5
D6
D7
D8
12
V
S
K
Q
10
Q
11
Q
12
A
1
5
V
5
V
G
N
D
A
2
~2
30
V
~
23
0V
~
23
0V
S
K
Q
7
Q
8
Q
9
~
23
0V
~2
30
V
~2
30
V
S
K
Q
4
Q
5
Q
6
~2
30
V
~
23
0V
~2
30
V
S
K
Q
1
Q
2
Q
3
~2
30
V
~
23
0V
~2
30
V
A
3
5
V
5
V
G
N
D
A
4
A
5
5
V
5
V
G
N
D
A
6
A
7
5
V
5
V
G
N
D
A
8
M
D
1
(
M
B
IO
1
2
)
2
3
0
V
/1
2
V
T
R
R
Q
1
U
T
P
P
W
M
-
O
P
C
IJ
S
K
O
3
J
M
P
M
6
M
5
M
7
D
Z
V
O
G
M
8
M
4
M
3
F
1
C
1
0
A
R
V
C
2
C
1
K
F
N
L
1
L
2
L
3
N
1
2
3
4
5
6
7
~ 2
30
V
O
C
TV
LP
1
LP
2
K
S
2
S
1
S
3
S
4
S
5
S
6
S
7
S
8
T
2
T
1
V
T
P
S
C
3
T
V
C
3
C
2
F
2
C
1
0
A
F
3
B
1
0
A
F
4
F
5
R
R
1
C
1
G
S
U
T
P
CAUTION
The device is factory set for safeguarding the water-water type of device. In case of
safeguarding the device type earth-water, it is necessary to move the bridge 2.4 on element
X2. For safeguarding the device type earth-water, change the bridge on element X2 from
connecting clamp 2-4 to clamp 2-3.
