INSTALLATION DATA
ERC-2
ELECTRONIC REFRIGERATION
CONTROL
APPLICATION
The Paragon® ERC-2 Electronic Refrigeration Control is a
microprocessor-based electronic controller designed to control
both the temperature and the defrost functions of a commercial
refrigeration unit. It can be powered by 120, 208 or 240V AC
(50 or 60 Hz). The control comes with four relay outputs: compressor,
defrost, evaporator fan and alarm.
The ERC-2 includes a digital display module that provides readout of
the temperature, time and built-in diagnostics. The display module
can be mounted locally or remotely from the unit and it contains a
touch keypad for simple programming. For defrost control, it uses a
real time clock.
This control is NSF certified and it can be applied to many different
commercial refrigeration applications like reach-ins, walk-ins,
refrigerated cases or other different products where accurate control of
refrigerated space and defrost cycles are required.
FeATures / BeNeFITs
• Multi-function Unit
Integrates defrost timer, temperature control, defrost termination
switch, fan delay switch and digital thermometer
• Display Module for Temperature Readout
Easy to read display that can be mounted with the unit or remotely.
Temperature can be displayed in °F or °C
• Two Temperature Sensors
For zone temperature and evaporator temperature
• Choice of Defrost Methods
Off cycle, hot gas or electric heater with up to 8 defrosts per day
and duration up to 4 hours
• Four Relay Outputs
Compressor, defrost, evaporator fan and alarm
• Adjustable Short Cycle Protection
Extra protection for the equipment
• Non-volatile memory
The programmed parameters will remain in the memory
• Capacitor Carry Over for the Clock
It maintains the correct time-of-day for up to 100 hours
• Microprocessor-Based Electronics
High reliability and repeatability
FCC COMPliANCE*
This device complies with CFR 47, Part 15, Class A FCC requirements.
Operation is subject to the following two conditions (1) This device
may not cause harmful interference and (2) This device must accept
any interference received, including interference that may cause
undesired operation.
CANADiAN COMPliANCE*
This digital apparatus meets all of the Industry Canada, ICES-003, Class A
requirements (Canadian Interference-Causing Equipment Regulations).
* Note:
These compliances apply to NEMA 1 enclosed models only.
All modular units are the responsibility of the purchaser to obtain
the compliance.
1
OPERATiON AND FUNCTiONS
The ERC-2 features a simple way to program and operate. Four buttons
on the display module allow the user to scroll through the functions
and set the desired parameters. A manual defrost button is used to
initiate the defrost cycle at any time.
There are two different levels of security to access the programming
features. The first one will allow the change on the time-of-day and the
setpoint temperature (cut-out). The other level will allow access to the
other parameters.
The programmable parameters are:
Clock
• Clock: allows time-of-day programming and choice of display format
(12 / 24 hours)
General
• Display: the display can show time-of-day, zone temperature,
evaporator temperature and it can also cycle between zone
temperature and time-of-day
• Temperature format: the control can use temperatures in °F or °C
• Fan enable during defrost: to control the fan operation during
defrost (on or off)
• Minimum compressor off time: for short cycle protection,
between 0 and 15 minutes
• Minimum compressor on time: between 0 and 15 minutes
• Alarm delay: a time delay can be configured for the alarm to operate,
between 0 and 59 minutes