KIOUR REF-FR Series Manual

KIOUR
Type REF-FR
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
df : By pressing df for five minutes, a dfrost cycle is forced.
T2 : By pressing Τ2, the temperature of the evaporator is displayed.
: By pressing
RESET
: By pressing RESET, the display of the ALARM and the buzzer stops.
: By pressing

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 (
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 : Low temperature of room
AHi : High temperature of room
LF1 : Malfunction of the room's sensor

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
ATTENTION
: It is necessary to prevent electrostatic discharges at the ventilation openings. Also prevent insertion of pointed
elements.

CONNECTION DIAGRAMS - DIMENSIONS

KIOUR
REFRIGERATOR CONTROLLER Type REF-FR
o o
Model REF-FR-SM. Range -50 - +150 C/ F V2.0
POWER
SUPPL Y
12
V AC/ DC
±
PTC PTC
15%
dFros t Ro m o
1 2 3 4 5 6 7 8
Model REF-FR-SM
the parameter's menu is displayed.
for 1 sec, the setup °C or °F is displayed.
for 3 sec, the state changes from OFF to ON or from ON to OFF.
↵),
while the name of the parameter is displayed. If we press SET, we cancel the new value and
↵
.
KIOUR
Patent No.
1004976
SET
9 10 11 12 13
V2.0
LF2 : Malfunction of the evaporator's sensor
dor : Open door. If the door remains open for 4 minutes, the
compressor stops, an ALARM is displayed and the buzzer is ON.
• 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
REF-FR
dF
o C
ALARM
28
mm
T2
RESET
76 mm
70 mm
28
mm