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.
|Published (Last):||6 November 2018|
|PDF File Size:||16.82 Mb|
|ePub File Size:||9.68 Mb|
|Price:||Free* [*Free Regsitration Required]|
However, with “CVQ” an actuator is used to operate the valve instead of a stepper motor.
Danfoss EKC Electronic Regulator for Pilot Valve | eBay
Don’t have an account? However, there can also be situations in refrigeration plants where humidity is required. A system like this is suitable for ventilation and comfort air conditioning plants and conditioning cabinets, as well as for fruit and vegetable storage. Defrosting The “EKC ” also offers the option of defrosting regulation by external initiation through an input contact.
Either can be necessary. Page 12 Cut out NTC resistor in actuator.
Solution for large plants 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. Here, the main valve with pilot is also fitted in the suction line. Operation The controller is operated using two push buttons.
However, in this case, more time must be planned for achieving the required reference value. A defrost sensor in the evaporator package ends the defrosting process as soon as the emc of the evaporator package has reached the temperature to which the sensor is set. Special attention must be paid to the start-up phase of regulation.
After defrosting, the “KVS” valve does not open abruptly – somewhat like a standard solenoid valve. S according to entered setpoint. In the case of PI regulation, the “reset time” I component can be changed individually, which simultaneously leads to the adaptation of the reaction speed of control.
The “NTC” resistor sends the control confirmation of the degree of opening of the valve via the inner actuator temperature. The individual status codes have the following meanings: Daanfoss means that any fitter at the plant can intervene in the control circuit and view relevant data.
Digital controller for refrigeration and defrost, 1 relay pages. For this purpose, indirect measures are daanfoss taken, such as changing the evaporator fan levels or the evaporator speed i. The “KVS” is a continuous valve with which even the smallest fluctuations in evaporation pressure can be avoided. Page 16 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material.
This means that this media temperature control can be integrated in complex Danfoss control system networks. Controller for operation of evaporator on water chiller 16 pages. The second option only allows slight undershooting. And on the other hand, you can see immediately which values the control takes for granted.
B – Product specifications
P control involves standard regulation according to the deviation example: Page 5 Due to tolerances in the actuator the value must be set 10K lower than indicated in the curves on page This also applies to products already on order provided that such alternations can be made without subsequential changes being necessary in specifications already agreed.
Page 8 If you need canfoss return to the factory-set values, it can be done in this way: Furthermore, it is not necessary to fit an additional valve in the suction line since 31 “KVS” can also be used for this shut-off function. If the actual application has a requirement re- garding max.
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. In the case of this setting, a very clear undershooting of the outlet temperature of the evaporator is to be expected to facilitate fast refrigeration and ensure the reference temperature is quickly achieved.
Therefore, the control gives the valve the e,c “open valve” in situations where the reference value is far lower than the actual value. In the case of electric defrosting, the “KVS” is opened.
A completely open valve ensures maximum refrigeration and therefore the lowest possible outlet temperature in the actual load situation.
Page 7 In other words, you cannot see a status code, if there is an active alarm. If more than kohm is measured across terminals 17 and 18 disassemble the Actuator feels warm.
Danfoss EKC 361 User Manual
Precise media temperature control. It is skc direct operating and pressure independent valve for control- ling media temperatur. The “D component” in PID control also optimises the control characteristics in the case of a sudden change to the reference value.
The controller can be completely programmed using these two buttons combined with a three-digit display where all important data is displayed.