REMKO KWL 130, Operation Manual

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Electrical components
Measurement
temperature
°C
Sensor resistance value
NTC 103 AT
-20 67770 Ω
-15 53410
Ω
-10 42470
Ω
-5 33900
Ω
0 27280
Ω
+5 22050
Ω
+10 17960
Ω
+15 14690
Ω
+20 12090
Ω
+25 10000 Ω
+30 8313
Ω
+35 6940
Ω
+40 5827
Ω
+45 4911 Ω
+50 4160
Ω
+55 3536
Ω
+60 3020
Ω
+65 2588 Ω
+70 2228
Ω
+75 1924
Ω
+80 1668
Ω
+85 1451 Ω
+90 1266
Ω
+95 1108
Ω
+100 973
Ω
Differential pressure switch
The differential pressure switch is
installed parallel to the evaporator
in the medium circuit. It measures
the pressure differential between
the intake and outlet pressure and
switches the unit off when the
minimum flow volume is fallen
short of or with extremely large
flow volumes.
Thermal contacts
Condenser fans
The condenser fan's thermal con-
tacts prevent overheating of the
motors.
Compressor thermal contact
The thermal contact is located
within the compressor and limits its
hot gas end temperature.
Phase sequence relay
The phase sequence relay controls
the direction of rotation for the
voltage supply. The controller will
not be enabled if the direction of
rotation is wrong.
Low noise fan control board
With a modulating output voltage,
the condenser fan's speed can be
adjusted to the condenser tem-
perature and in this way hold the
noise level to a minimum.
The iCHiLL controller determines
the current condensation tempera-
ture at the condenser through the
sensor Pb 3. The target value is
then regulated over the fan control
board.
Sensor Pb 1 medium intake
The sensor is located at the unit's
medium intake (system return).
It serves to capture the current
temperature to control the target
value.
Sensor Pb 2 medium outlet
The sensor is located at the unit's
medium outlet (system supply).
It serves to capture the current
temperature and regulate the anti-
freeze protection temperature.
Sensor Pb 3 fan controller
The sensor is located on the cool-
ing circuit's condenser. It detects
the current condensing tempera-
ture in cooling mode for the low-
noise fan controller.
Electric components and safety
equipment
Pressure switch cooling cycle HP
and LP
There is a high pressure switch
(HP) on the heat gas side within
the cooling cycle to switch off the
unit in the event of a temperature
increase.
A low pressure switch (LP) on the
suction side or in the compressor
switches off the unit if the
refrigerant charge is too low.
REMKO KWL (H)
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