AKO AKO-21006, User Manual

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2.3.3.- 4-20 mA INPUT AND OUTPUT TERMINALS
The controllers have:
· 3 x 4-20 mA inputs for suction, discharge and Ambient air temperature probes
· 1 x 4-20 mA output to control a Inverter
The wiring for all these 4-20 mA inputs/outputs is as follows:
The Ambient air probe measures the ambient temperature of the air flowing through the
condenser to cool the refrigerant. This information is necessary to control the condensation
pressure/temperature when using floating condensation.
It is recommended that the probe be located near the condenser in a protected place.
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SUCTION PROBE
4-20mA
DISCHARGE PROBE
4-20mA
PT100 / 4-20mA
TRANSMITER
AMBIENT AIR
TEMPERATURE
PROBE
IN INVERTER -
4-20mA
(Inverter only)
we make it easy