1
COOLING – HEATING CONTROLLER Model VD1T
ATTENTION
Firmware V3
Read carefully these instructions before installing and using this device and keep them for future reference. Attention to installation and electrical wiring. Use this device
only as described in this document and never use itself as a security device. The device must be disposed of in accordance with local standards for the collection of
electrical and electronic equipment.
DESCRIPTION
VD1T
is a temperature controller for cooling – heating applications as well as food drying applications (eg sausages). The room temperature is controlled with an NTC /
PTC sensor. The evaporator sensor input through parameters can adjusted act as a door switch to control the room door. It has an automatic conventional defrost or
smart defrost function for energy saving and better control of the defrost process. It has 3 indication digits of temperature display with an accuracy of 0.5 ° C and 4
buttons. It has a relay 16A 250VAC that through parameters adjusted in operation: cooling or heating or heating with countdown. It has a buzzer that activates in case of
alarm. The device is mounted on a panel hole 29x71mm
and it is restrained with plastic side brackets
. Through the serial input it can be connected to a network either
through Cloud IoT on the CORTEX platform, or through a local computer in the CAMIN program for complete local recording and monitoring of the device.
INDICATIONS AND BUTTONS FUNCTION
Display indications
relay ON in cooling mode
relay ON in heating mode
defrost ON
alarm ΟΝ
malfunction ON
Keyboard
enter/exit the parameter’s menu
display the parameter’s value
enter parameter’s value
manual defrost or manual heating with
countdown
up arrow
down arrow
ON/OFF device (check below)
For more indications regarding the alarms please see the alarm’s table at page 3.
1.
Press
to display the first parameter
SPo
.
2.
Press
to display its value. With
or
change
SPo
value.
3.
Press
to save the new value. The device is working properly with the new adjustment.
1.
Press
to display
SPo
. By pressing
the parameter
Cod
is displayed.
2.
Press
to display its value and press
to enter the value
31
. Press
to store the value to parameter
Cod.
3.
Press
again to exit the parameter menu,
‘YES’ is displayed on the screen. All appropriate factory settings are now stored in the device.
To activate or deactivate the device, press for 3 seconds
.
Press for 3 seconds
to start a manual defrost with duration based on the parameter
dd2.
This function also applies in case we have activated the smart defrost.
PROGRAMMING A PARAMETER
ATTENTION
: to gain full access to the parameter’s menu, the 2
nd
parameter
Cod
must be adjusted to
22
(see parameter table next page)
1.
Press
to enter the parameter menu.
2.
Choose the parameter you want to adjust by pressing
or
and press
to display its value.
3.
Press
or
to change its value and then press
to store the new value
.
4.
Press
to exit the parameter menu.
Power supply: 230VAC 50/60Hz / Maximum power consumption: 3W / Firmware : V3
It is recommended using a power supply safety fuse: 0.5Α (not included)
Room temperature sensor, terminals 5-6, NTC 10K 1% 25° C temperature range -37 ÷ + 110 ° C (-34 ÷ + 230 ° F) IP68 (or PTC 1K 25° C temperature range -50 ÷ + 110 °
C (-58 ÷ + 230 ° F) not included) / Accuracy: 0.5 ° C
Digital door input or input for evaporator temperature sensor, terminals 4-5, NTC 10K 1% 25° C temperature range -37 ÷ + 110 ° C (-34 ÷ + 230 ° F) IP68 (or PTC 1K 25° C
temperature range -50 ÷ + 110 ° C (-58 ÷ + 230 ° F) not included) / Accuracy: 0.5 ° C
Serial input 5pin connector
Relay 16Α res. 250VAC normally open contact / Max current load 16Α
Connections: cable cross section
2.5 mm² for all relays /
cable cross section
from 0.25 to 1.0 mm² for the sensors and door switch
Connections with terminal blocks 18A using cable with
cable cross section
up to 2.5 mm² / It is recommended using a torque wrench with maximum torque 0.4Nm
Operating temperature: -15÷+55°C / Storage temperature: -20÷+80°C
Dimensions 70x35x28mm / The device is mounted on a panel hole 29x71mm and it is restrained with plastic side brackets / Protection IP65 front
ADJUSTING TEMPERATURE – SET POINT
INDUSTRIAL FACTORY SETTINGS
ON/OFF DEVICE
MANUAL DEFROST
TECHNICAL SPECIFICATIONS
