Components of wiring diagrams

Components without further terminal strips

F3: Control circuit fuse

F4: Oil heater fuse

K1: Main contactor

M1: Compressor

N1: Frequency inverter (FI)

Q1: Main switch

T1: Transformer

 

Components containing terminal strips

B1: Controller
terminal strip


Component


Terminal


Designation

direkt integriert

2x Mini-B-USB

data connection

RS485

Modbus connection

RJ45

Ethernet connection

Bluetooth

data connection

H4

integrated display

CN5

R3

5, 6

discharge gas temperature sensor

R4

2, 3

ambient temperature sensor

CN6

R8

2, 3

suction gas temperature sensor

CN7

H1

1, 4, 5, 6

external display (data connection at CN3)

CN11

B3

4, 5, 6

high pressure transmitter

B4

1, 2, 3

low pressure transmitter

CN12

S5

1, 3

potential-free contact for DI1

S6

2, 6

potential-free contact for DI2

CN13

status message (potential-free)

H2

2, 1

signal light: ready-to-operate

H3

3, 1

signal light: fault

CN15

H1

1, 2

external display (voltage supply at CN1)

 

K5: Relay module
terminal strip


Component


Terminal


Designation

CN22

F1

1

fuse of fan 1

F2

3

fuse of fan 2

 

Terminal strip X101

Component

Terminal

Designation

X101

SE-B*

5, 6, 7, 8

compressor protection device

Delta-PII

17, 18, 19, 20, 21, 22

oil pressure monitoring

OLC-K1

17, 18, 19, 20, 21, 22

oil level monitoring

F5

9, 10 (PE)

high pressure switch

F6

11, 12

low pressure limiter

M2

27, 28, 29, 30, PE

fan 1 (supply/aarm)

M3

23, 24, 25, 26, PE

fan 2 (supply/alarm)

R6

15, 16

oil heater

S2

1, 2

external release

Y1

3, 4

solenoid valve in liquid line

Y2

14, 13

RI solenoid valve (refrigerant injection)

 

Terminal strip X102

Component

Terminal

Designation

X102

M2

6, 7, 8, 15, 16

fan 1 (set point/BUS)

M3

4, 5, 12, 13, 14

fan 2 (set point/BUS)

R1, R2

resistors

R5

3, 11

sensor for cold store temperature

K1

compressor contactor