The CVQ valve is operated by the EKC controller. Please notice that a power failure will cause the CVQ pilot valve to fully open ICS / PM. If it is required that. Type Code, EKC Weight, Kg. Approval, CE, C-TICK, EAC, LLC CDC TYSK. Data comm. options, LON RS EAN no. Freq. View and Download Danfoss EKC user manual online. Controller for regulation of media temperature. EKC Controller pdf manual download.
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The “KVS” is a continuous valve with which even the smallest fluctuations in evaporation pressure can be avoided.
By pressing ‘print’ button you will dsnfoss only current page. Digital controller for refrigeration and defrost, 1 relay pages. However, with “CVQ” an actuator is used to operate the valve instead of a stepper motor. This means that this media temperature control can be integrated in complex Danfoss control system networks.
It is a direct operating and pressure independent valve for control- ling media temperatur. This procedure can be avoided by looking at the service menu; here it can be seen immediately in case of doubt, double check eoc the thermometer whether the value is realistic.
Even with a temperature difference of just 1 K, the control forces a small opening to prevent the control from overshooting the set point. Defrosting The “EKC ” also offers the option of defrosting regulation by external initiation through an input contact.
The “NTC” resistor sends the control confirmation of the degree of opening of the valve via the inner actuator temperature. If more than kohm is measured across terminals 17 and 18 disassemble the Actuator feels warm. The “EKC ” also offers the option of defrosting regulation by external initiation through an input contact.
In simple terms, the purpose of the drip-off time is to drain off ice that has turned into water on the evaporator via the condensate drain.
Page 13 If the actual application has a requirement re- garding max. A valve that is almost closed creates a high outlet temperature. A fast-reacting temperature sensor e. Furthermore, it is not necessary to fit an additional valve in the suction line since the “KVS” can also be used for this shut-off function.
Page 5 Due to tolerances in the actuator the value must be set 10K lower than indicated in the curves on page Therefore, the control gives the valve the command “open valve” in situations where the reference value is far lower than the actual value. Special attention must be paid to the start-up phase of regulation.
All parameter values that begin with “u” display actual plant values which are important for all types of troubleshooting and for evaluating the state of the plant. The “D component” in PID control also optimises the control characteristics in the case of a sudden change to the reference value. In other words, you cannot see a status code, if there is an active alarm.
Due to tolerances in the actuator, the setting value must be 10 K lower than shown in the curve. On the one hand, they can be read quickly, which saves the effort of measuring with the temperature gauge. This can be easily achieved with electronic suction throttle regulation or media temperature control.
After defrosting, the drip-off time begins. This control mode is particularly advisable if the system is operated with external reference value changes, e. Page 16 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material.
Page 12 Cut out NTC resistor in actuator.
The controller is operated using two push buttons. Operation The controller is operated using two push buttons. However, there can also be situations in refrigeration plants where humidity is required. Got it, continue to print.
B – Product specifications
Don’t show me this message again. Here it is important to eliminate even the smallest temperature changes so that the measuring results are not affected.
The lowest occurring suction pressure will have a belonging t value which in turn indicates the value of the n02 setting.
Page 11 The lowest occurring suction pressure will have a belonging t value which in turn indicates the value of the n02 setting.
DANFOSS EKC USER MANUAL Pdf Download.
Cut out NTC resistor in actuator. Here, the main valve with pilot is also fitted in the suction line. Page of 16 Go. The actual value danfosss this actuator temperature and the current reference value can be read in the control menu of “EKC ” “”. Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Precise refrigeration and air conditioning is essential for many applications and demand is constantly increasing.
In the case of hot gas defrosting, the “KVS” valve closes during the defrosting procedure. This is a good troubleshooting aid. It is always easy to readjust a system like this through the eliminated condensate quantity at the evaporator.
Enter text from picture: If connection sizes larger than 54 mm are required for the suction line, it is recommended that you implement a solution with a main valve. In applications such as this, constant nozzle air temperature from evaporators is the key to success.
P control involves standard regulation according to the deviation example: It is therefore standard procedure for an experienced fitter to check the control sensor and, if necessary, the defrost sensor in electronic systems before the actual commissioning this is very easy to do for standard resistance sensors using an Ohm measuring device.
In the case of a media temperature control for refrigerating plants with a pipe size of up to 54 mm, an electrically danfods valve e.
Suction line installation In the case of a media temperature control for refrigerating plants with a pipe size of up to 54 mm, an electrically controlled valve e.