Copeland Scroll Digital™ Receiver Unit HLR
1 Safety instructions ............................................................................................ 1 1.1 Icon explanation ................................................................................................................. 1 1.2 Safety statements .............................................................................................................. 1 1.3 General instructions .................................................................................................
4 3.6.1 Select parameter configuration ............................................................................ 13 3.6.2 Parameter modification ........................................................................................ 14 3.6.3 Important parameters on EC2-552 to configure according to unit model ............ 14 Starting up & operation................................................................................... 16 4.1 Charging procedure .........................................
Safety instructions Safety instructions 1 Copeland Scroll Digital™ Receiver units HLR are manufactured according to the latest European and US Safety Standards. Particular emphasis has been placed on the user's safety. These receiver units are intended for installation in machines and systems according to the EC Machines directive. They may be put to service only if they have been installed in these systems according to instructions and conform to the corresponding provisions of legislation.
1.3 General instructions WARNING System breakdown! Personal injuries! Never install a system in the field and leave it unattended when it has no charge, a holding charge, or with the service valves closed without electrically locking out the system. System breakdown! Personal injuries! Only approved refrigerants and refrigeration oils must be used. WARNING High shell temperature! Burning! Do not touch the compressor until it has cooled down.
Product description 2.1 Common information about Copeland Scroll Digital™ Receiver HLR units Safety instructions 2 Emerson Climate Technologies has developed the Copeland Scroll Digital™ Receiver units HLR to meet refrigeration demands for compact solutions at highest efficiency levels. These units allow continuous capacity modulation from 10% to 100% and can be combined with various condenser concepts. About this guideline Product description 2.
2.6 Application range 2.6.1 Qualified refrigerants and oils IMPORTANT It is essential that the glide of refrigerant blends is carefully considered when adjusting pressure and superheat controls. Oil recharge values can be taken from Copeland Scroll™ compressors brochures or Copeland® Brand Products Selection Software.
2.7.3 Electrical box components Safety instructions All electrical components are pre-wired into the panel. The panel contains: Compressor contactor(s) Fuse(s) Terminal blocks DIN rail-mounted terminals Alarm relays Electronic controller Product description NOTE: For further information, please refer to the application guideline C6.1.3 "Condensing Unit Controller for Copeland EazyCool™ Outdoor Condensing Units" available on www.emersonclimate.eu. 2.7.
4) Alco Controls PT5 Pressure Transmitter Digital Scroll™ units are equipped with HP and LP pressure transmitters, connected to the EC2 electronic unit controller. An Alco PT5-30M pressure transmitter is used at the high-pressure part of the system. An Alco PT5-07M pressure controller is used at the low-pressure part of the system. The PT5 pressure transmitter converts a pressure into a linear electrical 4-20 mA current output signal.
Dimensions in mm Installation Product description Safety instructions 2.8 Certification & approval Maintenance & repair Starting up & operation Figure 1: HLR 13-ZBD30KCE, HLR13-ZBD45KCE, HLR 13-ZBD58KCE and HLR13-ZBD76KCE Dismantling & disposal Figure 2: HLR31-ZBDT60KCE, HLR31-ZBDT90KCE, HLR31-ZBDT116KCE and HLR31-ZBDT152KCE C6.1.
3 Installation WARNING High pressure! Injury to skin and eyes possible! Be careful when opening connections on a pressurized item. Copeland Scroll Digital™ Receiver units HLR are delivered with a holding charge of neutral gas. Since these units are used with remote condensers, they should be located in such a place to prevent any dirt, plastic bag, leaves or papers from covering the condenser and its fins.
3.2 Connection access Safety instructions 3.2.1 Access to refrigeration components Suction line Product description Discharge line Installation Liquid line Figure 4: HLR 13-ZBD30KCE, HLR13-ZBD45KCE, HLR 13-ZBD58KCE and HLR13-ZBD76KCE Suction line Starting up & operation Discharge line Maintenance & repair Liquid line Suction line Figure 5: HLR31-ZBDT60KCE, HLR31-ZBDT90KCE, HLR31-ZBDT116KCE and HLR31-ZBDT152KCE Certification & approval 3.2.
3.3 Electrical connections 3.3.1 Power supply connections The electrical connection of the Digital Receiver unit HLR to the power supply must be made by qualified technicians, who should refer to the electrical diagrams located inside the electrical connection box. Auxiliary relay K10 Contactor K1 Transformer T1 Circuit breaker Fuses F1, F2 Figure 7: Electrical connection box 3.3.2 Electrical components pre-wired When connecting electrically, care should be taken to avoid reverse rotation.
Electrical components pre-wired T a n d e m c o m p r e s s o r u n i t s 2 x 25 A 2 x 25 A 2x25A 2x25A 2 x (9 to 14A) 2 x (9 to 14A) 2 x (13 to 18A) 2 x (17 to 23A) 2 2 2 2 EC2-552 EC2-552 EC2-552 EC2-552 Crankcase heater 2 2 2 2 HP/LP Pressure switch PS2 – – – – HP Pressure switch PS3 2 2 2 2 LP Pressure switch PS1 1 1 1 1 Digital 24V solenoid valve 1 1 1 1 Overload protector Fuses Electronic controller Product description Compressor contact
3.4 Refrigeration connections IMPORTANT Blockage! Compressor breakdown! Maintain a flow of oxygen-free nitrogen through the system at very low pressure during brazing. Nitrogen displaces the air and prevents the formation of copper oxides in the system. If allowed to form, the copper oxide material can later be swept through the system and block screens such as those protecting capillary tubes, thermal expansion valves, and accumulator oil return holes. 3.4.
The electronic controller enables: Safety instructions 1. compressor modulation and / or staging based on suction pressure; 2. TCP/IP Ethernet with web server functionality allows monitoring and configuration of controllers through a standard web browser; 3. alarm messaging by email; 4. fan speed control if an Alco Controls FSP150 fan speed driver is installed.
/1 Value to show on display 0 = Compressors and fans states (controller 1 = Compressor(s), and controller 2 = Fan(s)) 1 = Suction pressure (bar(g)) 2 = Saturation temperature from suction pressure (°C) 3 = Condensing pressure (bar(g)) 4 = Saturation temperature from condensing pressure (°C) 5 = Digital Scroll™ capacity (%) 6 = Fan speed (%) 7 = Digital Scroll™ discharge temperature (°C) 3.6.
F Modulating Parameters Min Max Unit Def F2 Minimum output value 10 100 % 20 F3 Maximum output value 10 100 % 100 Safety instructions EC2-552 Parameter Table 9 Product description Minimum and maximum output values can be adjusted. In case of a single-compressor unit with a Digital Scroll™ compressor; the maximum output could be set below 100% if system requests less than the maximum capacity. In that case F3 > F2.
4 Starting up & operation Before commissioning, ensure that all Rotalock valves and other valves on the unit are fully opened. 4.1 Charging procedure 4.1.1 Refrigerant charging procedure It is recommended to charge the unit with refrigerant into the receiver, via the Rotalock service valve. Alternatively, it could also be done by charging gas through the suction valve of the compressor. The charging procedure should follow the rules of art of refrigeration.
5 Please check that all Rotalock valves are fully opened. Check that the electrical panel is closed. After starting up and operation conditions are stabilised, we recommend to check the oil level in compressor(s) and if needed to add oil to ensure a sufficient oil level (halfway up the sight glass). Safety instructions Checks before starting up and during operation Maintenance & repair De-energize the unit before any intervention.
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