Superheat controller EC3-X33 with built-in backup battery and display unit ECD-002

The new electronic superheat controllers EC3-X33 control the superheat at the evaporator. A complete system consisting of electric control valve, superheat controller, temperature and pressure sensor controls the superheat exactly to set point, independent from condensing pressure. The MOP function protects the compressor from dangerous overload conditions. The positive shut-off function eliminates the use of an additional solenoid valve, because the built-in backup battery closes the valve after power is lost. The controller can be easily adjusted for each refrigerant and valve type.

The Electronic Controllers from Emerson

The controller is responsible for the various control tasks. Emerson controllers are optimized for the requirements of refrigeration and air-conditioning and perform all control tasks which have been performed by conventional valves in the past, as superheat control or capacity control.

How energy is saved by applying electrical control valves?

The recent energy price increases caused an explosion in the system operating cost. Reducing energy consumption saves money and as a beautiful side effect protects the environment.

Refrigeration and air-conditioning systems belong to the big energy consumers all over the world. Means to reduce the energy consumption have a strong effect on the cost.

Under full load conditions or fixed condensing pressure, conventional, as well as electronic systems operate efficiently. Under partial load or floating condensing pressure, which happens at low ambient temperature (e.g. at cloudly weather, at night, in spring, fall or winter) the condensing pressure decreases. In this case, thermal expansion valves tend to oscillate, which decreases their lifetime. Systems with electronic valves and controllers operate in partial load in the same exact and stable manner as under load. This potential to save energy is best at low condensing pressure.

Latest Version of Catalogues

As our products in stock have undergone revisions and upgrades. We advice customers to refer to the latest versions of our catalogs. They can be downloaded from our website. If you are unsure of the differences, please check with us, your local wholesaler. Thank you.

Electronic Controllers Driver Module

Take Apart Liquid Line Filter Drier - 2-5/8" ODF Connection

For 101 tons ~ R-134a or 107 tons ~ R407C applications.
At 30 deg C liquid refrigerant temperature.

Selection: PCN 037570, ADKS 400 21 T.
Maximum working pressure: 500psig
Filtration: 40 micron, with H100 blocks.

Troubleshooting EPRBS Regulators

Problem A:

EPRBS regulator will not open.

Causes:

1) Excess dirt in pilot/ solenoid.
2) Piston bleed hole restriction.
3) Coil is damaged or not energized.

Corrective Action:

Disassemble valve and clean. Replace if necessary.
Verify coil is energized. Replaced if necessary.