UNIVERSAL–R
GREAT NEW FEATURES on the Universal-R DUAL VOLTAGE 12V & 230V POWER SUPPLY Both low (12Vac/dc) and high voltage (230Vac) power supply inputs are present in this single controller (see the rear connections of the device). QUICK AND SAFE START UP FUNCTION SELECTION Direct selection of the controller functionality by pressing a dedicated button, during a fixed time interval, at start up. NEW FRONT FASCIA DESIGN Display with illuminated icons to indicate loads, alarms, status indications.
1. INDEX 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.
2. GENERAL WARNING WARNING: The Universal-R should always be installed by a suitable qualified person, in accordance with best electrical and refrigeration practice. Take time to read the instructions. Do not exceed the relay ratings. The Universal-R should not be considered a safety device, use suitable safety cutout devices when appropriate. This manual is part of the product and should be kept near the instrument for easy and quick reference.
4. QUICK START UP PROCEDURE – Up and running in 5 easy steps This Quick Start Up section is designed to get you up and running with the minimum of fuss. Just follow these 5 simple steps. Install the new Universal-R, connect the correct number of probes and connect the wiring - See below: 1. Table 1: parameter tC settings 2. Section 5: Typical connections STEP 1 Turn on power, STEP 2 THEN WITHIN 1 MINUTE COMPLETE STEPS 3, 4 AND 5.
5. TYPICAL CONNECTIONS - FOR GENERAL GUIDANCE ONLY Table 2: typical connections Parameter tC = 1, 2 On / Off thermostat or Off Cycle Defrost Controller. Parameter tC = 3 Forced defrost controller, time initiated & time terminated. Parameter tC = 4 Forced defrost controller, time initiated & temperature terminated. Parameter tC = 5 Forced defrost controller, time initiated & temperature terminated with evaporator fan delay after defrost. Parameter tC = 6 Double evaporator applications.
6. PARAMETER TABLE and factory default settings IMPORTANT: Always set parameter “tC” first. As you move “tC” between settings 1 to 7, all non-relevant parameters will be masked. After setting “tC”, it will be possible to modify all the other relevant parameters. WARNING!! Always switch the power OFF and then ON at the end of programming to update any parameter changes. Make sure you connect the correct number of probes to suit the setting of parameter tC.
Description Label Adjustment Range Factory defaults with parameter “tC” 1- 7 Maximum duration of defrost 0 to 255 min 15 15 30 30 30 Defrost termination temperature -55 to 50C; -67 to 122°F 8.0°C 46°F 8.0°C 46°F 8.0°C 46°F 8.0°C 46°F 8.0°C 46°F Maximum duration of defrost (second evaporator) Defrost termination temperature (second evaporator) Display during defrost 0 to 255 min 30 -55 to 50C; -67 to 122°F 0 = Real temp. 1 = Temp.
Description Label Adjustment Range 0 = Start defrost 1 = Door switch 2 = Auxiliary relay 3 = Energy saving 4 = Remote On/OFF 5 = Generic alarm 6 = Serious alarm 0 = Closed circuit 1 = Open circuit 0 = Start defrost 1 = Door switch 2 = Auxiliary relay 3 = Energy saving 4 = Remote On/OFF 5 = Generic alarm 6 = Serious alarm 0 = Closed circuit 1 = Open circuit Digital input configuration Digital input polarity Second Digital input configuration Second Digital input polarity Factory defaults with paramete
READ ON IF YOU NEED MORE DETAIL 7. PARAMETERS – THEIR FUNCTIONS IN DETAIL Table 4: controller parameters in detail Display visualisation Description Type of Controller: tells the Universal-UDS which type of controller it will be operating as.
Outputs activation delay at start up: (0 to 255min) time delay before any output relay activates following “power on”. Thermostat override: (0 to 990min; res. 10min) period during which the compressor will run continuously, irrespective of temperature. Setting this parameter to 0 inhibit this function. Set point for continuous cycle: (-55 to 150 °C or -67 to 302°F) it sets the set point used during the continuous cycle.
Fan stop temperature: (-55 to 50°C or -67 to 122°F) temperature above which the evaporator fan stops (during the normal refrigeration cycle). Fan delay after defrost: (0 to 255min) the time interval between end of defrost and evaporator fans starting. Runs concurrently with Fdt (Drain down time). Always keep Fnd longer that Fdt. Fan ON time: (0 to 15min) used to set an On/Off cycle of the evaporator fans while the compressor is off.
Alarm muting: 0 = Alarm relay remains active when alarm buzzer is muted; 1 = Alarm relay is cancelled when alarm buzzer is muted.
Differential for temperature condenser alarm recovery: 0.1 to 25.5°C or 1 to 45°F. Condenser temperature alarm delay: (0 to 255min) time interval between the detection of an alarm condition at the condenser and the relative alarm signalling. Condenser temperature alarm exclusion during start-up: (0 to 720min, resolution 10min).
8. BUTTONS AND THEIR FUNCTIONS 8.1 SINGLE BUTTON FUNCTIONS Table 5: single button functions BUTTON FUNCTION Type Controller menu: keep this button pressed for at least 3 sec within 1 min after power on to enter the “Type Controller Menu” (tC). AUX output control: Switches the AUX relay output (if enabled as such). Manual Defrost: keep this button pressed for 3 s to start a manual defrost cycle. The defrost icon will illuminate. (Not possible if parameter tC = 1 or 7).
10. OTHER FEATURES OF THE UNIVERSAL-R As well as the main digital display, there are some small icons on the front panel. These are used to monitor the loads controlled by the instrument. Each icon function is described in the following table. Table 7: display signalling description ICON FUNCTION MEANING ON Light (AUX) output enabled. ON Cooling enabled. FLASHING Anti-short cycle delay in progress. ON Fan enabled.
Parameter FSt sets the fan stop temperature. This is the maximum temperature, detected by the evaporator probe, above which the evaporator fans will stop. Leave FSt above ambient temperature during commissioning to avoid fan short cycle. After finishing the defrost phase, there is a stand still drain time, set by parameter Fdt. When this period has expired, the refrigeration cycle commence but the evaporator fans remain off until Fnd (fan delay) times out. 14. SPECIAL APPLICATIONS – DEAD BAND CONTROL 14.
17. MOUNTING The Universal-R should be mounted in a panel, in a 29 x 71 mm hole, and fixed using the special brackets supplied. Ambient temperature for correct operation is 0 to 50°C. Avoid places subject to strong vibrations, corrosive gases, excessive dirt or humidity (20 to 85% noncondensing RH is the recommended working range). Make sure air can freely circulate through the cooling holes slots at the rear side of the controller. 18.
21. FAULT FINDING Problem Possible reason Display flashing HA Temperature too high. Display flashing LA Temperature too low. Display flashing HA2 Condenser temperature too high. Display flashing LA2 Condenser temperature too low. Fault with thermostat probe. Wrong type of probe fitted (NTC/PTC). Fault with evaporator probe. Wrong type of probe fitted (NTC/PTC). Parameter tC has been set to 4, 5 or 6 without evaporator probe fitted. Fault with third probe.
