KIOUR
Type REF-FR Model REF-FR-SM V2.0
Electronic digital refrigerator controller (Compact) with ON-OFF function, level water
control, dfrost control (valve or resistance), fan, ON-OFF relay and buzzer ALARM.
Range -45 -+150 °C/°F.
Electronic controller
REF-FR
is a compact unit for refrigerator’s control. It is ideal for
ventilated refrigerator rooms of low temperatures with dfrost control.
It is provided with 5
relays: compressor (30 A, 2HP), fan (5A), valve or resistance (12A), level control (5A), ON-
OFF relay and a buzzer ALARM.
It controls two temperatures with its two sensors in range of -45 - +150 °C/°F, while it has
an
Off state,
in which
all relays are off and
OFF
is displayed. Also it is provided with one input
for level control (Patent No.1004976) and one input for open door. If the door opens the fan
stops. After four minutes the compressor also stops and the ALARM of the open door is
displayed, while the buzzer is ON.
MANAGING THE UNIT
↵
:
By pressing
↵
the parameter’s menu is displayed.
df
:
By pressing
df
for five minutes, a dfrost cycle is forced.
T2
:
By pressing
Τ
2
,
the temperature of the evaporator is displayed.
RESET
:
By pressing
for 1 sec, the setup °C or °F is displayed.
:
By pressing
RESET
, the display of the ALARM and the buzzer stops.
:
By pressing
for 3 sec, the state changes from
OFF to ON
or from
ON to OFF
.
MANAGING THE PARAMETERS
1.
By pressing
↵
, the first parameter SPo (Set Point) is displayed and with the arrow buttons we can see the other parameters
as they appear in the table below.
2.
By pressing
SET
, we can see the value of the parameter and with the arrow buttons we can change the value. We confirm
the new value with the enter (
↵),
while the name of the parameter is displayed. If we press
SET
, we cancel the new value and
the name of the parameter is displayed.
3.
To exit the parameters, we press
↵
.
NOTE: For security reasons, we can’t see all the parameters. To access them all, we enter the value 22 to the Cod parameter.
OPTICAL SIGNS - ALARMS
ALo
AHi
LF1
:
Low temperature of room
:
High temperature of room
:
Malfunction of the room’s sensor
LF2
dor
:
Malfunction of the evaporator’s sensor
:
Open door. If the door remains open for 4 minutes, the
compressor stops, an ALARM is displayed and the buzzer is ON.
SERIAL INPUT
Via serial input the instrument is connected to the memory backup (key) or to a network.
1.
Memory backup (key):
With the key we save the setup of the parameters. We connect the key to the instrument and:
a. By pressing SET and the UP button, the instrument connects to the key and the message
Eo
is displayed.
b. By pressing UP button, the instrument reads the parameters from the key and the message
ro = read O.K.
or
rF = read
Fail
is displayed.
b. By pressing DOWN button the instrument writes the parameters to the key and the messages
Yo = Write o.K.
or
YF =
Write Fail
is displayed
.
The key can be connected to various types of instruments. If you try to read the parameters of a
different instrument, a message
rF = read Fail
is displayed.
At all instruments and at any time we can perform the write operation. After 10 sec, the key is disconnected automatically.
2.
Connect to network:
The device can be connected to the
CAMIN
net (RS485 Modbus protocol) though an interface,
NET-IN-1
.
CAMIN
is an application designed to collect information, watch and fully control a net of devices. The maximum length of the
net can be 1000 meters.
TECHNICAL SPECIFICATIONS
•
Power supply: 12 VAC/DC
•
Accuracy: 0.5 % ±1 digit
•
Connection: TAB 6,3 mm (DIN46247)
•
Relay 250 VAC 30 A Resistive Load 2 HP
•
Relay 250 VAC 12 A Resistive Load
•
Two relay 250 VAC 5 A Resistive Load
•
Operating temperature: -10 - 60°C
•
Storage temperature: -20 - +80°C
•
Mounted through panel hole
•
Security power supply: 0,5 A
•
Maximum power consumption: 3 Watt
•
Connection for two sensors
ATTENTION
: It is necessary to prevent electrostatic discharges at the ventilation openings. Also prevent insertion of pointed
elements.
CONNECTION DIAGRAMS - DIMENSIONS
28
mm
76 mm
28
mm
70 mm
2
1
3
4
5
6
7
8
9 10 11 12 13
POWER
SUPPL
12
15%
Y
V AC/
±
DC
KIOUR
REFRIGERATOR CONTROLLER Type REF-FR
Model REF-FR-SM. Range -50 - +150 C/ F
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