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CC7.8.9/0519/E 

 

1/7

 

Date of last update: May-19 

 

Ref: CC7.8.9/0519/E 

 

 

Application Engineering Europe 

C

OPELAND 

E

AZY

C

OOL

 

CO

2

 

R

EFRIGERATION 

U

NIT

 

Q

UICK 

I

NSTALLATION 

G

UIDE

 

 

 

Introduction 

This  quick  installation  guide  provides  information  on  Copeland

™  EazyCool  CO

2

  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. 

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 

Summary of Contents for Copeland EazyCool CO2

Page 1: ...sure 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 ...

Page 2: ...to be opened closed in order to carry out the pressure tests For the evacuation process it is recommended that all shut off devices be opened and evacuated from both sides via the connections on the suction side and the connection on the liquid receiver The shut off valves at the discharge port on the suction side of the compressor at the outlet of the liquid receiver and the shut off valve in the...

Page 3: ...his serves to avoid incorrect measurements resulting from the pressure gradient along the connecting lines to the pump IMPORTANT Care must be taken that all components solenoids expansion devices regulators shut off valves etc in the refrigeration cycle which separate a part of the installation when de energized are manually opened to guarantee successful evacuation in the whole piping system NOTE...

Page 4: ...ity over the valves override function 2 The compressor is switched off safety timers are ignored 3 The fan is switched off while auxiliary outputs are not influenced safety timers are ignored 4 The alarms are disabled except for the communication alarms Stopping the evacuation function The evacuation mode will be deactivated when 1 One of the 3 pressures probes P1 P2 P3 SPF6 or 2 the DISB key is p...

Page 5: ...ressors F1 and fans F3 must be switched on and the release for the frequency inverter SB1 must be activated Figure 7 Enabling compressors fans frequency inverter The refrigeration unit starts automatically First the gas cooler fans start up then the compressor switches on and starts controlling according to suction pressure The filling process via the suction side can be completed The system shoul...

Page 6: ... OFF 8 Use the UP and DOWN keys to adjust GC78 to the desired value 9 Press SET to apply the setting 10 Press EXIT to leave the menu GC20 Medium pressure flashtank setpoint Setpoint for the pressure in the liquid receiver in normal control mode GC78 Bypass medium pressure vessel Pressure with compressor OFF Maximum pressure in the liquid receiver during standstill of the refrigeration unit When th...

Page 7: ...on compressor setpoint SETC1 SPF1 The lowest pumpdown setpoint will always be applied The following diagram illustrates the controller logic Figure 8 Controller logic for the pumpdown function NOTE The pumpdown setpoint will never be lower than what parameter RC02 allows 18 C 0 C Controller will perform pumpdown down to 18 C Ambient condition TAmb 20 C SPF5 20K Compressor setpoint SETC1 10 C SPF1 ...

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