Housing self-extinguishing ABS Case CH keyboard: frontal 38x80mm; depth 23mmT keyboard: frontal 38x185mm; depth 23mmD, K: frontal 110x140mm; depth 48mm Mounting CH keyboard: panel mounting in a 29x71mm cut-outT keyboard: panel mounting in a 31x150mm cut-outD, K: DIN Rail or wall mounting through integrated brackets Front protection Keyboard CH, T: IP65 Connections screw terminal block. Efficient case control thanks to device synchronization (up to 8) by local LAN. Optimized management of stepper or pulse electronic expansion valves. Low environmental impact (CO2, R407C and R407F compatible).
Energy saving through case optimization with auto-adaptive control of superheat. Energy consumption reduction thanks to ECI fan management via PWM or 0÷10V output. Anti-sweat heater management through a ”DEW POINT”. Virtual probe management.
Keyboard with direct access to the main functions. Internal Real Time Clock. Hot Key for quick and easy programming.
. L2 message is displayed.
Model XR02CX, format 32 x 74 x 50 mm, is a digital thermostat with off cycle defrost designed for NOTE2: the set value is stored even when the procedure is exited by waiting the time-out to expire. Software release 8. INSTALLATION AND MOUNTING NOTE: Fast-on maximum current 16A Instrument XR02CX shall be mounted on vertical panel, in a 29x71 mm hole, and fixed using the special bracket supplied. DEFAULT SETTING VALUES The temperature range allowed for correct operation is 0÷60 °C.
. L2 message is displayed. Model XR02CX, format 32 x 74 x 50 mm, is a digital thermostat with off cycle defrost designed for NOTE2: the set value is stored even when the procedure is exited by waiting the time-out to expire. Software release 8. INSTALLATION AND MOUNTING NOTE: Fast-on maximum current 16A Instrument XR02CX shall be mounted on vertical panel, in a 29x71 mm hole, and fixed using the special bracket supplied. DEFAULT SETTING VALUES The temperature range allowed for correct operation is 0÷60 °C.
. Installation and Operating Instructions UNIVERSAL–XR60CX 1. GENERAL DESCRIPTION Model Universal-XR is a 71x29 mm format microprocessor based controller, suitable for applications on high, medium or low temperature refrigeration units. It is provided with three relay outputs to control compressor, defrost - which can be both electrical or hot gas - and evaporator fans. Installation and Operating Instructions Table 1: parameter “tC” settings Parameter Required Type of Control Models Replaced probes On / Off thermostat – Heating XR110C, XR01CX, XR10C, XR10CX Off cycle defrost (timed) XR120C, XR02CX, XR20C, XR20CX Off Cycle defrost time initiated / temperature terminated XR120C, XR02CX, XR20C-E Off Cycle defrost time initiated / temperature terminated, Alarm XR130C, XR03CX, XR30CX.
Dixell Universal Xr Controller Manual
Installation and Operating Instructions 4. 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. Once the program is completed you may want to save the parameter map to a Hot Key. Installation and Operating Instructions Description Label Adjustment Range Maximum duration of defrost 0 to 255 min (second evaporator) Defrost termination temperature (second 8.0°C 8.0°C -55 to 50C; evaporator) 46°F 46°F -67 to 122°F Rt (0) = Real temp. It (1) = Temp.
At defrost start Display during defrost sEt (2) = Set Point dEF (3) = “DEF”. Installation and Operating Instructions Description Label Adjustment Range No (0) = No change FAn (1) = Fan off Door open – compressor / fan status CPr (2) = Compressor off FC (3) = Compressor & Fan off Alr (0) = Alarm; db (1) = Dead Band. Installation and Operating Instructions 5. PARAMETERS, FUNCTIONS IN DETAIL Table 4: controller parameters in detail Display visualisation Description Type of Controller: tells the Universal-XR which type of controller it will be operating as. 1 = on/off Heating thermostat – 1 relay & 1 probe; 2 = Combined thermostat with off cycle defrost timer –. Installation and Operating Instructions Delay start of defrost: (0 to 255min) delay between reaching the defrost interval time (as defined by parameter idF) and when a defrost cycle actually starts. Used to stagger defrosts between multiple systems.
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Probe Selection for first defrost cycle (Maximum) duration of defrost: (0 to 255min) time duration of a defrost cycle when only one probe is in use, or defrost time out override when second (evaporator) probe is in use. Installation and Operating Instructions Third probe presence (probe named Evap.2 on the label): 0= n = not present, the third input (the one signed with label “D.I. / Pb3”) Input operates as digital input; 1= Y = present, the third input (the one signed with label “D.I. / Pb3”) Input operates as third probe.
Third probe calibration: (-12.0 to 12.0°C or -21 to 21°F) adjustment for third probe offset. Installation and Operating Instructions Regulation restart with door open alarm: 0= n = no; 1= Y = yes, regulation will restart after “door open” alarms. Probe selection for Condenser Alarm: 0= nP=No Probe selected 1= P1=Probe 1 2= P2=Probe 2 3= P3=Probe3.normally P3 would be used. Low temperature alarm of condenser: (-55 to 150°C or -67 to 302°F) when this temperature is reached, the HA2 alarm will be raised (after the Ad2 delay time has expired). Installation and Operating Instructions 6.
BUTTONS AND THEIR FUNCTIONS 6.1 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). Installation and Operating Instructions NOTE: the “Err” message is displayed for failed programming. In this case push o key again if you want to restart the upload or remove the “Hot key” to abort the operation. 8.2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY (DOWNLOAD) Turn OFF the instrument.
COMMUNICATIONS WITH XWEB or OTHER MONITORING SYSTEMS Using the XJ485CX-00000 it is possible to network the Universal XR60CX to the XWEB monitoring systems, or a third-party system. The controller has TTL communications that can be converted with the XJ485CX key. The key is connected to the control via the HOT KEY port, with a small 5 wire cable. 15.2 ALARM “EE” The Dixell Universal-XR is provided with an internal watchdog verifying data and memory integrity. Alarm “EE” will flash after detecting a failure in data or in the internal memory. In this case, the alarm output is enabled.
Installation and Operating Instructions 21. TROUBLESHOOTING Problem Possible reason Notes. Check cooling system. Display flashing HA Temperature too high. Check alarm settings. Check cooling system. Display flashing LA Temperature too low.
Check alarm settings. Installation and Operating Instructions Differential Minimum set point value Maximum set point value Anti-short cycle delay Second compressor start delay Probe selection for temperature alarms Temperature alarm configuration High temperature alarm Low temperature alarm Differential for temperature alarm recovery Temperature alarm delay Delay before activating a temperature alarm at start up Delay before activating outputs at start up.
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Installation and Operating Instructions Thermostat probe calibration Evaporator probe presence Evaporator probe calibration Third probe presence Third probe calibration Display resolution Temperature measurement unit Display visualization Delay before updating the displayed temperature 0.00 Kind of action: heating or cooling Compressor ON time with faulty probe Compressor OFF time with faulty probe Alarm output disabling by pushing any button Digital input 2 configuration. Installation and Operating Instructions 905 Waverly Ave. Holtsville, NY 11742 (631)207-1200 f (631)207-0900 www.weissinstruments.com [email protected] Universal-XR 17/17 UXR01212015REV1.4mm.
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