11 Appendix
EN
30
Rittal enclosure cooling unit
Fig. 41:
Electrical wiring plan no. 3
Key
A1
Power PCB
A2
Display terminal
A3
Starter relay and RC element
B1
Temperature sensor, internal temperature
B2
Icing hazard temperature sensor
B3
Condenser temperature sensor
B4
Ambient temperature sensor
B5
Condensate warning sensor (optional)
C1
Start-up capacitor (3383.xxx/3384.xxx)
C1.1
Operating capacitor (3385.xxx)
C1.2
Start-up capacitor (3385.xxx)
E1
Condensate evaporator
F2
PSA
H
pressure switch
F3
Compressor thermal contact
F11/F12
Miniature fuses, condensate evaporator
K1
Relay collective fault 1
K2
Relay collective fault 2
M1
Compressor
M2
Condenser fan
M3
Condenser fan (optional)
(3383.xxx to 3387.xxx)
M4
Evaporator fan
S1
Door limit switch
(without door limit switch: terminal 1, 2 open)
T1
Transformer (optional)
X1
Main terminal strip
X2
Master/slave connection
X3
Optional interface
Mains
S1
A2
Power
E1
F11
Term
F2
Kx
PE
A1
M4
M2
M1
X1
NTC E blue
NTC I red
F12
3~
M
M
M4
M2
M1
3~
6
1
3
2
1
4
4
2
2
B2
B1
22
P
21
8
3
B5
B4
B3
2
2
2
NTC C white
NTC A yellow
Level green
MS1
Serial
M
M3
3~
X2
X3
K2
K1
S1
F3
F2
F4
F5
3
2
1
4
3
2
1
1
3
2
1
4
3
2
1
2
3
2
1
4
3
2
1
4
3
2
1 2
L3
L2
L1
5
PE
T
R
S
U
V
W
PE
PE
PE
3386.54x/.64x, 3387.54x/.64x
Summary of Contents for Rittal 3273 Series
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