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Date of last update: May-19
C
OPELAND
1
Introduction
This quick installation guide provides information on Copeland™ EazyCool CO
describes the first steps for successful commissioning. It is not intended to replace the application guidelines,
to explain the functionality of the refrigeration unit or to help optimize the system parameters.
2
First steps
WARNING
Hot surfaces! Burning! If the temperature on the bottom of the compressor (crankcase)
is below 20°C, the crankcase heater is automatically activated. Do not touch the
crankcase heater.
When the low-pressure side piping has been finalized and the electrical supply has been connected by
qualified personnel, please follow the steps below in preparation for commissioning:
Safety:
✓ Verification of necessary safety devices in the system
✓ Visual inspection of the refrigerant pipes and especially of all connections
✓ Visual inspection of the electrical wiring of the supply line
✓ Checking the refrigeration unit and connected cooling stations for damage of any kind
✓ Ensuring that no section of the system is under safety charge with dry air
Functionality:
✓ Switch on the device main switch (Q01)
✓ Switch on the disconnector for the single-phase power supply (F2)
✓ Switch on the safety chain transformer isolator switch (F5)
✓ Switch on the disconnector for the crankcase heater (F4)
✓ Switch on the RCCB for online monitoring (F1.1 = power supply to the router), if available
Figure 1: Switch on control system & small electrical components
CC7.8.9/0519/E
E
C
™ CO
AZY
OOL
Q
I
UICK
NSTALLATION
Application Engineering Europe
R
EFRIGERATION
2
G
UIDE
refrigeration units and
2
Ref: CC7.8.9/0519/E
U
NIT
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Related Manuals for Emerson Copeland EazyCool CO2
Summary of Contents for Emerson Copeland EazyCool CO2
- Page 1 Date of last update: May-19 Ref: CC7.8.9/0519/E Application Engineering Europe ™ CO OPELAND EFRIGERATION UICK NSTALLATION UIDE Introduction This quick installation guide provides information on Copeland™ EazyCool CO refrigeration units and describes the first steps for successful commissioning. It is not intended to replace the application guidelines, to explain the functionality of the refrigeration unit or to help optimize the system parameters.
- Page 2 Pressure resistance test and leak test CAUTION The system must be properly evacuated before filling the cooling circuit with refrigerant. This should result in a reduction of the residual moisture content to approx. 50 ppm. Evacuation should be carried out to less than 3 mbar and, if necessary, the vacuum should be broken with dried nitrogen.
- Page 3 Evacuation IMPORTANT The evacuation procedure is based upon achieving an actual system vacuum standard and is NOT TIME DEPENDENT! The installation has to be evacuated with a vacuum pump before commissioning. Proper evacuation reduces residual moisture to 50 ppm. The installation of adequately sized access valves at the furthest point from the compressor in the suction and liquid lines is advisable.
- Page 4 Starting the evacuation function: The evacuation mode will start when pressing the ENB key only if all 3 of the following conditions are met: ▪ Suction pressure probe P1 value < SPF6 ▪ Gas cooler (condenser) pressure probe P2 value < SPF6 ▪...
- Page 5 Charging the CO refrigeration unit CAUTION High pressures! Risk of system damage! Only use pressure gauges that are suitable for the required pressure positions. Check the connection hoses for suitability for CO pressure levels. After leakage tests and evacuation have been performed, the system can be filled with R744 refrigerant. In order to avoid the formation of dry ice, the system must be filled with gas on both sides first.
- Page 6 Setting up the evaporating temperature The CO refrigeration unit is controlled according to the suction pressure. The required evaporating temperature can be set under parameter SETC1. Press the PARAM key to access the programming menu Use the UP and DOWN keys to select the Pr1 menu and press Pr1 to confirm Select SETPOINT Select setpoint "SETC1"...
- Page 7 The pumpdown function of the CO refrigeration unit does not work in the same way as in units using standard refrigerants. Based on the ambient temperature and the compressor setpoint, the controller calculates two different pumpdown setpoints: ▪ Setpoint based on ambient temperature = T –...