Operating instructions

18 RITTAL cooling unit assembly and operating instructions
4 Assembly and connection
EN
Fig. 27: Electrical wiring plan no. 7
Fig. 28: Electrical wiring plan no. 8
SK 3304.700, SK 3328.700
NTC I red
NTC E blue
Term
M1
1
2
3
M2
1
2
3
M4
1
2
3
C1.2
P
R
C
A
C1.1
M2
M4
M
1~
M
1~
PE
Mains
22 21
S1
L1
L2
N
L1
L2
N
L1
L2/N
F11
F12
PE
PE
1
23
4
5
A2
L1
L2
R1
2
2
8
B1
B2
2
1
F2
P
F2
5
T1
X1
L1
E1
1
23
F11
E1
L
123
N
Power
12321
S1
Kx
A1
F3
M1
A3
4
1
2
5
SK 3304.800, SK 3328.800
NTC I red
NTC E blue
M1
1
2
3
M2
1
2
3
M4
1
2
3
P
R
C
A
C1.1
M2
M4
M
1~
M
1~
PE
Mains
22 21
S1
L1
L2
N
L2
N
L1
L2/N
F11
F12
PE
1
23
4
5
A2
2
2
2
B1
B2
2
1
F2
P
F2
5
T1
X1
L1
1
2
3
E1
L
123
N
Power
12321
S1
K2
A1
F3
M1
A3
4
1
2
5
L1
F11
E1
X2 X3
3
PE
6
PE
Kx
K1
2
2
4
B3
B4
B5
NTC C white
NTC A yellow
Level green
Term
Serial
C1.2