Robur GAHP A Instructions For Installation, Use And Maintenance Manual
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Robur GAHP A Instructions For Installation, Use And Maintenance Manual

Air-water gas absorption heat pump
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Installation, use and maintenance manual
GAHP A
Air-Water gas absorption heat pump
powered by gas and renewable energies

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  • Page 1 Installation, use and maintenance manual GAHP A Air-Water gas absorption heat pump powered by gas and renewable energies...
  • 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 Installation, use and maintenance manual without prior notice.

  • Page 3: Table Of Contents

    ................p. 34 Hydraulic connections ..........p. 20 Operative codes............. p. 34 Water pump ..............p. 20 9 Appendices Antifreeze function ............p. 20 ................p. 37 Antifreeze liquid ............p. 21 Product fiche..............p. 37 System water quality ........... p. 21 Installation, use and maintenance manual – GAHP A...

  • Page 4: Iintroduction

    CONTROL DEVICE In order to be able to work, the GAHP A unit needs a control RECIPIENTS device (DDC, CCP/CCI or external requests), which must be con- nected by the installer.
  • Page 5 The water-ammonia solution is contained in the spare parts. sealed circuit. The solution is harmful for health if it is „ In the event of failure of the appliance and/or breakage Installation, use and maintenance manual – GAHP A...

  • Page 6: Iii.2 Compliance

    Warnings III.3 EXCLUSIONS OF LIABILITY AND of any component, do not attempt to repair and/or re- store and immediately contact the TAC. WARRANTY Routine maintenance Any contractual or extra-contractual liability of the man- ufacturer for any damage caused by incorrect installa- Proper maintenance assures the efficiency and good op- tion and/or improper use and/or failure to comply with eration of the appliance over time.

  • Page 7: Features And Technical Data

    Titanium stainless steel shell-and-tube water heat exchang- Standard or silenced fan ▶ er, externally insulated. According to the type of fan the GAHP A unit is available in two Stainless steel, shell-and-tube recovery exchanger of flue gas ▶ versions: latent heat.
  • Page 8 Features and technical data Figure 1.2   Dimensions (standard fan) Figure 1.3   Dimensions (low consumption silenced fan)

  • Page 9: Components

    Gas valve Water inlet connection Ø 1 1/4" F Combustion air intake Water outlet connection Ø 1 1/4" F Combustion blower Gas connection Ø 3/4" F Ignition transformer TA outdoor temperature probe Installation, use and maintenance manual – GAHP A...
  • Page 10 Features and technical data Figure 1.5   Internal components - left side view        Manual reset of the flue exhaust thermostat Generator fin temperature sensor Sensing element of the flue exhaust thermostat Flame sensor / ignition electrodes Ø...
  • Page 11          TG generator temperature probe Limit thermostat Safety valve Defrosting valve Delivery pipe flowmeter Return temperature probe Flow temperature probe Teva evaporator temperature probe Installation, use and maintenance manual – GAHP A...

  • Page 12: Electrical Wiring Diagram

    Features and technical data ELECTRICAL WIRING DIAGRAM Figure 1.7   Wiring diagram of the appliance with low consumption fan (S1) SCH1 Controller S61 Flame sensor THRC Hot water return temperature probe SCH2 W10 circuit board Gas valve ON indicator lamp THMC Hot water flow temperature probe SCH3 Mod10 circuit board Gas solenoid valve...

  • Page 13: Electronic Boards

    S61 board and located next to it, used to and operative codes. The appliance is monitored and pro- control defrosting operations of the GAHP unit. grammed by interacting with the display and the knob. Installation, use and maintenance manual – GAHP A...
  • Page 14 Features and technical data Figure 1.9   Electronic board S61 SCH1 Controller S61 IGN.BOX (L, N) Flame controller power supply (GND, L, H) CAN bus connector SCH3 Mod10 electronic board (see specific figure 230 Vac PUMP 230V (L, N) Oil pump supply output for further details) CAN bus Jumper Communication port with Mod10...
  • Page 15 (0-10 V) NC1-C1 Status indication of locking warnig/error Blower control W10 auxiliary controller connector W10 cable shielding connection Inputs 0-10V (not used) Figure 1.11   W10 electronic board Defrosting valve contact Communication with S61/Mod10 Installation, use and maintenance manual – GAHP A...

  • Page 16: Operation Mode

    The main functions are: Adjustment and control of one (or more) Robur units of the ▶ For connection of the selected device to the appliance's absorption line (GAHP, GA, AY).
  • Page 17 (11) Maximum sound pressure levels in free field, with directionality factor 2, obtained from the sound power level in compliance with standard EN ISO 9614. Data referred to 50 °C outlet temperature. (12) Overall dimensions excluding flue gas exhaust. Installation, use and maintenance manual – GAHP A...

  • Page 18: Transport And Positioning

    Transport and positioning Table 1.2   PED data GAHP A HT Standard GAHP A HT S1 PED data generator 18,6 18,6 leveling chamber 11,5 11,5 evaporator Components under pressure refrigerant volume changer solution refrigerant absorber solution pump test pressure (in air) bar g...

  • Page 19: Minimum Clearance Distances

    „ flue gas exhaust „ flue gas condensate discharge Compliance with installation standards Installation must also comply with the manufacturer's provisions. Installation must comply with applicable regulations in Installation, use and maintenance manual – GAHP A...

  • Page 20: Hydraulic System

    3.2.2 Constant ot variable water flow water and gas piping and any other system component, The GAHP A unit may work with costant or variable water flow, removing any residue. regardless of the ON/OFF or modulating operative mode. System and components must be designed and installed 3.3.3...

  • Page 21: Antifreeze Liquid

    Ensure there are no leaks in the installation. ▶ Periodically check the chemical-physical parameters of the ▶ water, particularly in case of automatic topping up. Chemical conditioning and washing Installation, use and maintenance manual – GAHP A...

  • Page 22: System Filling

    Heating engineer Water treatment/conditioning or system washing car- on the right, at the bottom, connection plate (Figure 1.1  p. 7 ). ried out carelessly may result in risks for the appliance, Install an anti-vibration connection between the appliance ▶ the system, the environment and health. and the gas piping.

  • Page 23: Combustion Products Exhaust

    Figure 3.2   Flue gas exhaust 3.11 FLUE GAS CONDENSATE DRAIN The GAHP A unit is a condensing appliance and therefore pro- duces condensation water from combustion flue gases. Condensate acidity and exhaust regulations The flue gas condensate contains aggressive acid sub- stances.

  • Page 24: Defrosting Water Drainage

    Electrical installer 3.12 DEFROSTING WATER DRAINAGE Figure 3.3   Condensate drain position Defrosting In winter, frost may form on the finned coil and the appli- ance performs defrosting cycles. 3.12.1 Collection basin and drainage system Provide for a collection basin or containment rim and a dis- ▶...

  • Page 25: Electrical Power Supply

    The CAN bus communication network, implemented with the cable of the same name, makes it possible to connect and re- motely control one or more Robur appliances with the DDC or CCI control devices. It entails a certain number of serial nodes, distinguished in: intermediate nodes, in variable number ▶...
  • Page 26 CAN bus signal cable, shielded, compliant to Table Table 4.1   CAN bus cables type Cable name Signals / Color Maximum length Note Robur Optional code OCVO008 ROBUR NETBUS H = BLACK L = WHITE GND = BROWN 450 m Honeywell SDS 1620 BELDEN 3086A H = BLACK...
  • Page 27 Data signal HIGH J21 CAN bus jumper on DDC board Detail of "terminal node" case (3 wires; J21 = jumper "closed") Detail of "intermediate node" case (6 wires; J21 = jumper "open") CAN port/connector Installation, use and maintenance manual – GAHP A...

  • Page 28: Water Pump

    Electrical installer Figure 4.7   External heating request connection Figure 4.8   Water pump connection (power absorption less than 700W) controlled directly by the appliance's board SCH Electronic board J10 Jumper (1) N.O. CONTACT N.O. voltage-free contacts MA Appliance terminal block Phase Neutral SCH Electronic board Components NOT SUPPLIED Common 24 V AC PM Water pump <...

  • Page 29: First Start-Up

    System installed in a workmanlike manner, according to na- ▶ Robur TAC. NEITHER the user NOR the installation tech- tional and local regulations. nician is authorised to perform such operations, under 5.1.2...

  • Page 30: Electronic Adjustment On The Machine - Menus And Parameters Of The S61 Board

    First start-up 5.1.3 Non-compliant system and corrective actions of parameters in a menu, and indicates the exit to go back to the higher level by pressing the knob. Should the TAC find any non conformities, the user/installer is bound to perform any corrective procedures required by the 5.2.4 Menus and Parameters TAC.

  • Page 31: Modifying Settings

    If the appliance is controlled by external request (e.g. ther- ▶ mostat, timer, switch, ... with voltage-free NO contact), (sys- First start-up may exclusively be carried out by a Robur tem (3) see Paragraph 1.7  p. 16 ), the appliance is switched TAC (Chapter 5  p. 29 ).

  • Page 32: Efficiency

    PRE-EMPTIVE MAINTENANCE For pre-emptive maintenance, comply with the recommendations in Table 7.1  p. 32 . 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 √...

  • Page 33: Messages On The Display

    Paragraph 3.5  p. 20 ). There are two options for resetting a fault: How to reactivate the appliance after long periods of 1. If the appliance is connected to a DDC you may act through Installation, use and maintenance manual – GAHP A...

  • Page 34: Diagnostics

    4.2  p. 25 ). 3. Switch on the appliance by means of the provided con- and 3.6  p. 21 ). trol device (Paragraph 4.4  p. 25 ). DIAGNOSTICS OPERATIVE CODES Table 8.1   Operative codes GAHP A Code Description Warning (u) Error (E) Power cycle the appliance.
  • Page 35 TAC. the TAC. The priming cycle lasts 30’ if activated manually or 10 minutes if activated automatically. Oil pump priming cycle activated Reset is automatic when the triggering condi- tion ceases. Installation, use and maintenance manual – GAHP A...
  • Page 36 Diagnostics Code Description Warning (u) Error (E) Reset is automatic when the triggering condi- High hot water delivery temperature tion ceases. Non-blocking Warning (informative code). Heating antifreeze function activated The code clears automatically when antifreeze function execution ends. 80/480 Incomplete functional parameters Contact the TAC.

  • Page 37: Appendices

    (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heating Pdesignh , and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj) . Additional information required by COMMISSION REGULATION (EU) No 813/2013, Table 2: Emissions of nitrogen oxides: mg/kWh Installation, use and maintenance manual – GAHP A...
  • Page 38 Contact details Robur SPA, Via Parigi 4/6, I-24040 Zingonia (BG) (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heating Pdesignh , and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj) .
  • Page 40 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 air 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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