Data Sheet for Product

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Siemens Superheat Controller CE1N3372en_02
Smart Infrastrucutre 2022-02-16
Wiring must be made in compliance with the following connection diagram.
G
Y
G0 U
G0
AC/DC 24 V
K1
K2
G
Y
G0
U
I
G
X4X1
B
M
B M
X2
X5
X3X1
GND
X 2
24V
5 VX 5X4
PolyCool Superheat
B
-
G
G 0
Q13 Q14 Q24 Q34 Q44 Q54 Q64
A+
Y1
GND
Y2
AC/DC 24 V
Digital Output AC 24...230 V
PE
GND
D1 M D2
Digital Inputs Universal Input
RS 485
Analog Outputs
RWR462.10
Y1
Y2
(+)
(-)
GND
GND
DC
M1 M2
L
N
3372A02
Devices
Terminal Assignments
X1
Pressure sensor e.g. QBE9103-P10U
X1, 24 VDC
Evaporation pressure
X2
Temperature sensor QAZ21.682/101
X2, GND
Suction gas temperature
X4
Only if capacity control is configured:
- Active temperature sensor
- Signal transmitter DC 0…10 V /
4…20 mA *
For two circuits:
Pressure sensor e.g. QBE9103-P10U
X3
X4, GND
EIV position feedback signal
For configured capacity control:
- External signal DC 0…10 V / 4…20 mA
- Medium temperature
For two circuits:
- evaporation pressure
X5
Temperature sensor QAZ21.682/101 (only
required for capacity control and two cir-
cuits)
X5, GND
For configured internal capacity control:
Medium temperature
For two circuits: suction gas temperature
K1
Enable circuit 1
D1, M
Enable (for circuit 1)
K2
Enable circuit 2
D2, M
Enable (for circuit 2)
M1
Compressor 1 (circuit 1)
Q14, Q13
Compressor 1 (circuit 1)
M2
Compressor 2 (circuit 2)
Q24, Q13
Compressor 2 (circuit 2)
Y1
Electronic injection valve (EIV) e.g.
MVL661…-… or MVS661.25-…
Y1
Positioning signal EIV (DC 0…10 V)
Y2
For two circuits:
# 2 Electronic injection valve (EIV)
e.g. MVL661…-… or MVS661.25-…
Y2
Positioning signal EIV (DC 0…10 V)
G, G0
Power supply AC/DC 24 V
5V
DC 5 V supply
24 V
DC 24 V supply
* Usable range: -0.5...10.5 V / 3.5…20.5 mA.
Outside this range, the controller locks out!
Connection diagram
Please do not
connect M with GND!