Robur GA ACF Installation, Use And Maintenance Manual
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Robur GA ACF Installation, Use And Maintenance Manual

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Installation, use and maintenance manual
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Summary of Contents for Robur GA ACF

  • Page 1 Installation, use and maintenance manual GA ACF absorption chiller gas powered...
  • Page 2 The rights of those who have legitimately filed the registered trademarks contained within this publication are not affected. With the aim of continuously improving the quality of its products, Robur S.p.A. reserves the right to modify the data and contents of this...

  • Page 3: Table Of Contents

    Warnings ................p. 19 Restarting a locked-down unit......... p. 32 Hydraulic system ............p. 20 Periods of inactivity ............p. 33 Hydraulic connections ..........p. 20 8 Diagnostics ................p. 33 Water circulation pump ..........p. 21 Operative codes............. p. 33 Installation, use and maintenance manual – GA ACF...

  • Page 4: Iintroduction

    CONTROL DEVICE In order to be able to work, the GA ACF unit needs a control de- RECIPIENTS vice (DDC or external request), which must be connected by the installer.

  • Page 5: Iii.2 Conformity

    „ Do not deposit flammable materials (paper, diluents, paints, etc.) near the appliance. III.2 CONFORMITY Limescale and corrosion EU Directives and standards Depending on the chemical/physical properties of the GA series absorption chillers are certified in compliance to EC Installation, use and maintenance manual – GA ACF...

  • Page 6: Iii.3 Exclusions Of Liability And Warranty

    Warnings standards and conform with the essential requirements of the following Directives: 2016/426/EU "Gas Appliances Regulation" as amended and ▶ added. 2014/30/EC "Electromagnetic Compatibility Directive" as ▶ amended and added. 2014/35/EC "Low Voltage Directive" as amended and added. ▶ 2006/42/EC "Machine Directive" as amended and added. ▶...

  • Page 7: Features And Technical Data

    The thermodynamic cycle takes place within a hermetically Versions sealed circuit, in welded construction, perfectly tight, facto- The GA ACF unit is available in the following versions: ry-tested, which does not require any maintenance or coolant ACF standard, for residential/retail/industrial cooling sys- ▶...

  • Page 8: Dimensions

    Features and technical data DIMENSIONS Figure 1.1   ACF standard version dimensions Position of holes for fixing of anti-vibration joints...
  • Page 9 Position of holes for fixing of anti-vibration joints Figure 1.3   ACF Service plate with plumbing and gas connections Water outlet connection Ø 1 1/4" F Water inlet connection Ø 1 1/4" F Gas connection Ø 3/4" F Installation, use and maintenance manual – GA ACF...
  • Page 10 Features and technical data Figure 1.4   ACF-HR Service plate with plumbing and gas connections Gas connection Ø 3/4" F Chiller - CHILLED WATER Outlet water fitting Ø 1 1/4" F Water inlet connection Ø 1 1/4" F Recovery exchanger - HOT WATER Water outlet connection Ø...

  • Page 11: Components

    Combustion air intake Oil pump Room temperature probe Combustion blower Water inlet connection Ø 1 1/4" F Gas valve Water outlet connection Ø 1 1/4" F Electrical Panel Gas connection Ø 3/4" F Installation, use and maintenance manual – GA ACF...
  • Page 12 Features and technical data Figure 1.6   Left side internal components     Ignition transformer Flue thermostat Ignitor and flame detectors...
  • Page 13 Features and technical data Figure 1.7   Right side internal components Safety valve Inlet temperature probe TG generator temperature probe Limit thermostat Flow temperature probe Water flow switch TCN probe Installation, use and maintenance manual – GA ACF...

  • Page 14: Electrical Wiring Diagram

    Features and technical data ELECTRICAL WIRING DIAGRAM Figure 1.8   GA-ACF, ACF-TK, ACF-LB, ACF-HT Unit wiring diagram  Power supply terminal block 230 Vac Ambient air temperature probe Fan motor SCH1 Electronic board (S61) Generator temperature sensor Fan condenser Gas solenoid valve SRT1 Oil pump rotation sensor Oil hydraulic pump motor...

  • Page 15: Electronic Boards

    Electronic Board S61 (Figure 1.10  p.  16 ), with microproces- sor, it controls the appliance and displays data, messages and operative codes. The appliance is monitored and programmed by interacting with the display and knob. Installation, use and maintenance manual – GA ACF...

  • Page 16: Controls

    The DDC controller is able to control appliances, a single GA unit, 1.6.2 Adjustment system (2) with external request or even several Robur GAHP/GA/AY units in cascade, only in ON/ for heating or cooling (GAHP unit ON/OFF) OFF mode (non modulating). For more details refer to the DDC, RB100, RB200 Manuals and the Design Manual.

  • Page 17: Technical Characteristics

    Sound power values detected in compliance with the intensity measurement methodology set forth by standard EN ISO 9614. Maximum sound pressure levels in free field, with directionality factor 2, obtained from the sound power level in compliance with standard EN ISO 9614. Installation, use and maintenance manual – GA ACF...

  • Page 18: Transport And Positioning

    Transport and positioning ACF 60-00 ACF 60-00 ACF 60-00 ACF 60-00 ACF 60-00 General information ammonia R717 Cooling fluid water H 10,0 10,3 10,0 10,5 To be set (on demand) during the first startup. Default Minimum Temperature = 4,5 °C. For flows other than nominal see Design Manual, Pressure losses Paragraph.

  • Page 19: Appliance Positioning

    Installation must also comply with the manufacturer's provisions. Compliance with installation standards Installation must comply with applicable regulations in force, based on the installation Country and site, in Installation, use and maintenance manual – GA ACF...

  • Page 20: Hydraulic System

    Heating engineer HYDRAULIC SYSTEM Minimum water content High thermal inertia is conducive to efficient appliance opera- tion. Very short ON/OFF cycles are to be avoided. Primary and secondary circuit For each GA unit provide a minimum water content in the ▶...

  • Page 21: Water Circulation Pump

    Loss of efficiency of unit temperature -3 °C -5 °C 6,0% 0,5% -8 °C 8,0% 1,0% -12 °C 10,0% 2,0% -15 °C 12,0% 2,5% -20 °C 14,0% 3,0% -25 °C 16,0% 4,0% Installation, use and maintenance manual – GA ACF...

  • Page 22: System Water Quality

    Heating engineer SYSTEM WATER QUALITY Responsibility of the user/operator/installer „ Check compatibility of treatment or washing products with operating conditions. „ Do not use aggressive substances for stainless steel or The installer, operator and user must assure system wa- ter quality (Table 3.2  p.  22 ). Failure to comply with the copper.

  • Page 23: Electrical Installer

    3B/P (1) GAHP-AR not approved for G25.1, G25.3 gases. If necessary, insulate the piping. ▶ (2) GA ACF not approved for G25.1, G27, G2.350, G25.3 gases. LPG pressure reducers Vertical pipes and condensate With LPG the following must be installed: Vertical gas pipes must be fitted with siphon and discharge ▶...

  • Page 24: Electrical Systems

    Electrical installer ELECTRICAL SYSTEMS 1. Ensure the appliance's electrical panel is not live. 2. Remove the front panel of the appliance and the cover of the Electrical connections must provide: electrical panel. (a) power supply (Paragraph 4.3  p. 24 ) ▶ 3.

  • Page 25: Set-Up And Control

    The CAN bus communication network, implemented with the Main switch cable of the same name, makes it possible to connect and re- motely control one or more Robur appliances with the DDC con- trol devices. It entails a certain number of serial nodes, distinguished in: Intermediate nodes, in variable number.

  • Page 26: Water Circulation Pump

    Electrical installer Figure 4.4   CAN bus connection for systems with one unit Direct Digital Control S61 controller Jumper CAN bus in board Jumpers CAN bus on DDC board Terminal node connection - (3 wires; J21 jumpers = "closed") H,L,GND Data signal wires (ref. cables table) External request Figure 4.5  ...
  • Page 27 Jumper J10 must be opened if the in- stalled pump is a Wilo electronic pump. Heat recovery exchanger circulating pump To be controlled through contacts 1 - 2 on terminal block MA (Figure 4.7  p. 28 ). Installation, use and maintenance manual – GA ACF...

  • Page 28: First Start-Up

    TAC shall not perform first start-up and the appliance tion parameters and may exclusively be carried out by a shall not be commissioned. Robur TAC. NEITHER the user NOR the installation tech- These situations may be: nician is authorised to perform such operations, under Appliance installed inside a room.

  • Page 29: Electronic Adjustment On The Machine - Menus And Parameters Of The S61 Board

    (if the appliance is in nor- Menu for the user (but for the installer and TAC as well) mal operation), or the flashing malfunction and failure The menu "0.", display only, for functional data detected in ▶ Installation, use and maintenance manual – GA ACF...

  • Page 30: Modifying Settings

    This may be harmful and dangerous for the First start-up by TAC appliance and for the system. First start-up may exclusively be carried out by a Robur Inspections before switching on TAC (Chapter 5  p. 28 ). Before switching on the appliance, ensue that: Never power the appliance off while it is running „...

  • Page 31: Modifying Settings

    PRE-EMPTIVE MAINTENANCE For pre-emptive maintenance, comply with the recommendations in Table 7.1  p. 32 . Installation, use and maintenance manual – GA ACF...

  • Page 32: Scheduled Routine Maintenance

    Maintenance Table 7.1 GAHP A GAHP GS/WS AY00-120 GA ACF GAHP-AR Guidelines for the preventive maintenance operations visually check of the general condition of the unit and of its finned coil √ (1) √ (1) √ (1) check the correct operation of the device used for monitoring the water √...

  • Page 33: Periods Of Inactivity

    Reset may be performed from the DDC or from the S61 board (menu 2, parameter 1). If the code persists, shows up again or in case of doubt, contact the TAC. Installation, use and maintenance manual – GA ACF...
  • Page 34 Diagnostics CODES DESCRIPTION Warning (u) Error (E) Reset may be performed from the DDC or from the S61 board Reset occurs automatically 20 minutes after the (menu 2, parameter 1). Insufficient rotation of oil pump code is generated. If the code persists, shows up again or in case of doubt, contact the TAC.
  • Page 35 Diagnostics Installation, use and maintenance manual – GA ACF...
  • Page 36 Robur mission Robur is dedicated to dynamic progression in research, development and promotion of safe, environmentally-friendly, energy-efficiency products, through the commitment and caring of its employees and partners. Robur S.p.A. advanced technologies for climate conditioning via Parigi 4/6 24040 Verdellino/Zingonia (BG) Italy +39 035 888111 - F +39 035 884165 www.robur.it robur@robur.it...

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