Danfoss EKC 202D User Manual

2 Manual RS8EE202 © Danfoss 08-2010 EKC 202D
Introduction
Application
• The controller is used for temperature control refrigeration
appliances in supermarkets.
• With many predened applications one unit will oer you
several options. Flexibility has been planned both for new
installations and for service in the refrigeration trade.
Principle
The controller contains a temperature control where the signal
can be received from one or two temperature sensors.
The thermostat sensors are either placed in the cold air ow after
the evaporator, in the warm air ow just before the evaporator,
or both. A setting will determine how great an inuence the two
signals are to have on the control.
A measurement of the defrost temperature can be obtained
directly through the use of an S5 sensor or indirectly through
the use of the S4 measurement. Four relays will cut the required
functions in and out – the application determines which.
The options are the following:
• Refrigeration (compressor or relay)
• Fan
• Defrost
• Rail heat
• Alarm
• Light
The dierent applications are described on page 6.
Advantages
• Several applications in the same unit
• The controller has integrated refrigeration-technical functions,
so that it can replace a whole collection of thermostats and
timers
• Buttons and seal imbedded in the front
• Easy to remount data communication
• Two temperature references
• Digital inputs for various functions
• Clock function with super cap backup
Contents
Introduction ....................................................................................................... 2
Operation ............................................................................................................ 3
Applications ....................................................................................................... 6
Survey of functions .......................................................................................... 7
Operation ..........................................................................................................16
Menu survey .....................................................................................................17
Override .............................................................................................................19
Ordering ............................................................................................................19
Connections .....................................................................................................20
Data .....................................................................................................................21

Danfoss EKC 202D Specifications

General

Brand	Danfoss
Model	EKC 202D
Category	Controller
Language	English