Danfoss EKC 312 User Manual

DKRCC.PS.R1.A3.02 / 520H9752
Features y The evaporator is charged optimally – even
when there are great variations of load and
suction pressure.
y Energy savings – the adaptive regulation of
the refrigerant injection ensures optimum
utilisation of the evaporator and hence a high
suction pressure.
y The superheating is regulated to the lowest
possible value.
User manual
Electronic superheat controller
Type EKC 312
The controller and valve can be used where
there are requirements to accurate control of
superheat in connection with refrigeration.
• Processing plant (water chillers)
• Cold store (air coolers)
• A/C plant

Danfoss EKC 312 Specifications

General

Output type	Relay
Number of inputs	3
Weight	0.2 kg
Type	Controller
Input voltage	24 V AC/DC
Approvals	CE
Supply voltage	24 V AC/DC
Communication	RS485

Summary

Introduction

Application Areas

Key Advantages

Highlights the benefits of optimal evaporator charging and energy savings.

Controller Functions

Lists the core functionalities including superheat regulation and MOP.

Operation Modes

Superheat Regulation

Describes the adaptive superheat function for optimal performance.

PC Connectivity

Technical Data and Connections

Electrical and Sensor Data

Wiring Connections

Details necessary and application-dependent terminal connections.

Function Survey - Part 1

Alarm and Control Parameters

Details parameters like Kp, Tn, Max/Min Superheat, and MOP.

Function Survey - Part 3

Refrigerant Type Selection

Specifies the importance of selecting the correct refrigerant type.

Service Data Readouts

Menu Navigation and Controls

Button Operation Guide

Details how to navigate menus and change parameter values using buttons.

Installation Guidance

General Installation Precautions

Emphasizes good engineering practice and potential consequences of poor installation.

Advanced Control and Startup

Appendix 4: Regulation Algorithms

Explains the two available regulation algorithms (Loop Ctrl. =1 and =2).

Controller Startup Sequence

Handling Superheating Fluctuations

Provides guidance on adjusting parameters to stabilize superheating.