30
RITTAL Compact split cooling unit assembly and operating instructions
4 A
ss
embly and connection
EN
Fig. 6:
Electrical wiring plan no. 2
Le
g
end
A1
Power PCB
A2
Display terminal
B1
Temperature sensor, internal temperature
B2
Icing hazard temperature sensor
B3
Condenser temperature sensor
B4
Ambient temperature sensor
B5
Condensate warning sensor (optional)
F2
Pressostat
F3.1
Thermistor
F3.2
Compressor overload protection
F4.1
Condenser fan 1 thermocontact
F4.2
Condenser fan 2 thermocontact
F5.1
Evaporator fan 1 thermocontact
F5.2
Evaporator fan 2 thermocontact
F5.3
Evaporator fan 3 thermocontact
F5.4
Evaporator fan 4 thermocontact
K1
Relay collective fault 1
K2
Relay collective fault 2
L1
LED operational green
L2
LED alarm red
M1
Compressor
M2.1
Condenser fan 1
M2.2
Condenser fan 2
M4.1
Evaporator fan 1
M4.2
Evaporator fan 2
M4.3
Evaporator fan 3
M4.4
Evaporator fan 4
S1
Door limit switch
(without door limit switch: terminal 1, 2 open)
X1
Terminal strip
X2
Master-slave connection
X3
Optional interface
X10
AC connections
X20
DC connections
Tab. 2: Contact data
22
21
X1
L1 L2 L3
1 2 3 4 5
PE
3
8
2
B1
B5
B2
2
2
S1
Mains
1
2
3
4 3 2 1
1 3 5
2 4 6
95
2
2
4
96
4 3 2 1
1 2 3
1 2 3
1 2
1 2
3
4
K1
K2
D1 – 2
D0 – A
MS1
Serial
Level GRE
NTC_I RED
NTC_E BLUE
A1
M1
F3.2
M2
M4 D1 – 5
Term
D1 – 3 D1 – 1 D1 – 4
PE
PE
5
Power
X2 X3
M2.1
M1
F3.1
U
4
PE
PE
PE
W
V
F4.1
F2
M2.2
M4.1
M4.2
A2
A2
3~
M
F5.1
3~
M
F5.2
3~
M
U
V WPE
U
V W PE
U
VW PE
U
V W PE
F4.2
2
4
2
4
B4
B3
1 2
2 4 1
3
NTC_A YEL
NTC_C WHI
X10
L1
X20
1 2 3 4 5 6 7 8 9 10
X20
1 2 3 4 5 6 7 8 9 10
L2L3
L1L2 L3
PE
X10
L1L2L3
L1L2 L3
PE
Evaporator coil
Condenser
Note:
For technical data, refer to the rating plate.
AC
co
s
f = 1
DC
L/R = 20 m
s
I max. = 2 A
U max. = 250 V
I min. = 100 mA
U max. = 200 V
U min. = 18 V
I max. = 2 A
