Robur GAHP A Installation, Use & Maintenance Manual
Air-water gas absorption heat pump, powered by gas and renewable energies
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Summary of Contents for Robur GAHP A
- 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.
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Page 3: Table Of Contents
8 Diagnostics ................p. 30 Antifreeze function ..........p. 15 Operative codes ..........p. 30 Antifreeze fluid ............ p. 15 System water quality ......... p. 16 9 Appendices ................p. 34 System filling ............p. 17 Product fiche ............p. 34 Installation, use and maintenance manual – GAHP A... -
Page 4: Iintroduction
End user, for appropriate and safe use of the appliance. ▶ Qualified installer, for correct appliance installation. ▶ This Manual is an integral part of the GAHP A appli- Planner, for specific information on the appliance. ▶ ance and must be handed to the end user together with the appliance. - Page 5 Halogenated hydrocarbons containing chlorine down. and fluorine compounds cause corrosion. The air „ Do not touch the flue gas exhaust before it has of the installation site must be free from aggressive cooled down. substances. Installation, use and maintenance manual – GAHP A...
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Page 6: Iii.2 Compliance
Warnings Acid flue gas condensate as amended and added. 2014/35/EC "Low Voltage Directive" as amended and ▶ Discharge the acid condensate of combustion flue added. gas in compliance with current exhaust regulations. 2006/42/EC "Machine Directive" as amended and add- ▶ Switching the appliance off 2014/68/EU "Pressure Equipment Directive"... - Page 7 Warnings „ Accidental damages or due to force majeure. Installation, use and maintenance manual – GAHP A...
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Page 8: Features And Technical Data
Features and technical data FEATURES AND TECHNICAL DATA FEATURES Stainless steel, shell-and-tube recovery exchanger of ▶ flue gas latent heat. 1.1.1 Operation Air exchanger with finned coil, with steel pipe and al- ▶ uminium fins. Based on the thermodynamic water-ammonia absorption Automatic microprocessor-controlled finned coil de- cycle (H 0–NH... - Page 9 Centre distance of holes for vibration damper supports Condensate drain connection Figure 1.3 Dimensions (low-noise fan) 975 (A) 695 (A) 1003 1260 Centre distance of holes for vibration damper supports Condensate drain connection Installation, use and maintenance manual – GAHP A...
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Page 10: Electronic Boards
1.5.2 DDC Controller fitted with voltage-free NO contact. This system only pro- The DDC control is able to manage one or more Robur ap- vides elementary control (on/off, with fixed setpoint tem- pliances in ON/OFF mode (GAHP heat pumps, GA chillers) perature), thus without the important functions of the or modulating mode (AY boilers). - Page 11 (6) Maximum sound pressure levels in free field, with directivity factor 2, obtained from the sound power level in compliance with standard EN ISO 9614. Data referred to 50 °C outlet temperature. (7) Overall dimensions excluding flue gas exhaust. Installation, use and maintenance manual – GAHP A...
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Page 12: Handling And Lifting
Transport and positioning GAHP A HT GAHP A HT S1 Weight in operation required air flow m³/h 11000 fan residual head General information ammonia R717 Refrigerating fluid water H 10,0 maximum pressure of the refrigerating circuit (1) In transient operation, lower temperatures are allowed. -
Page 13: Appliance Positioning
Pre-emptively assess the appliance's sound effect in Although the appliance's vibrations are minimal, res- connection to the site, taking into account that build- onance phenomena might occur in roof or terrace ing corners, enclosed courtyards, restricted spaces may Installation, use and maintenance manual – GAHP A... -
Page 14: Heating Engineer
3.2.2 Constant ot variable water flow The GAHP A unit may work with costant or variable water flow, regardless of the ON/OFF or modulating operative mode. -
Page 15: Water Pump
The antifreeze check of the glycol content is required. function (activated by default) automatically starts the primary water pump and, if required, the burner too, With high glycol percentage (> 20…30%) Installation, use and maintenance manual – GAHP A... -
Page 16: System Water Quality
Heating engineer 3.6.1 Type of antifreeze glycol If the glycol percentage is ≥30% (for ethylene gly- col) or ≥20% (for propylene glycol) the TAC must be Inhibited type glycol is recommended to prevent oxida- alerted before first start-up. tion phenomena. 3.6.2 Glycol effects When producing DHW by DHW buffer tank, use propylene glycol only. -
Page 17: System Filling
BG, CH, CZ, ES, GB, GR, HR, IE, IT, LT, LV, MK, PT, SI, SK, TR 2H3P 2ELL3B/P 2Esi3P 2Er3P 2HS3B/P 2E3P 2L3B/P 2EK3B/P GAHP-AR not approved for G25.1, G25.3 gases. GA ACF not approved for G25.1, G25.3, G2.350, G27 gases. Installation, use and maintenance manual – GAHP A... -
Page 18: 3.10 Combustion Products Exhaust
Heating engineer Gas supply pressure [mbar] Product Country of destination G25.1 (1) G25.3 (1) category G2.350 (2) G27 (2) 2E3B/P 2ELwLs3B/P 2ELwLs3P 2E(R) 2E(S) 3B/P MT, CY GAHP-AR not approved for G25.1, G25.3 gases. GA ACF not approved for G25.1, G25.3, G2.350, G27 gases. 3.9.5 Vertical pipes and condensate Figure 3.2 ... -
Page 19: 3.11 Flue Gas Condensate Drain
Size the ducts for the maximum condensate flow (Ta- ▶ ble 1.1 p. 10 ) and in any case with a diameter of not The GAHP A unit is a condensing appliance and there- less than 15 mm. fore produces condensation water from combustion flue Use plastic materials resistant to acidity pH 3-5. -
Page 20: Electrical Systems
Electrical installer Live components Figure 4.1 GAHP/GA electrical panel After placing the appliance in the final position, and prior to making electrical connections, ensure not to work on live components. Earthing „ The appliance must be connected to an effective earthing system, installed in compliance with reg- ulations in force. -
Page 21: Adjustment And Control
The CAN bus communication network, implemented with Neutral the cable of the same name, makes it possible to connect Components NOT and remotely control one or more Robur appliances with SUPPLIED the DDC or CCI control devices. GS Main switch... - Page 22 Electrical installer Figure 4.3 Connection of the CAN bus cable to the electronic board of GAHP/GA units GND H GND H SCH Electronic board of GAHP/GA units GND Common data Data signal LOW Data signal HIGH Onboard CAN bus jumper Detail of "terminal node" case (3 wires; J1 = jumper "closed") Detail of "intermediate node"...
- Page 23 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") P8 CAN port/connector Installation, use and maintenance manual – GAHP A...
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Page 24: Water Pump
Electrical installer 4.4.5 External request 3. Jumper J10 open if the pump is > 700 W or is a Wilo electronic pump, otherwise closed. System (3), see also Paragraph 1.5 p. 10 . It is required to arrange: Figure 4.8 Water pump connection (power absorption less than Enable device (e.g. -
Page 25: First Start-Up
Appliance correctly installed, according to the manu- ▶ bustion parameters and may exclusively be carried facturer's provisions. out by a Robur TAC. NEITHER the user NOR the in- System installed in a workmanlike manner, according ▶ stallation technician is authorised to perform such to national and local regulations. -
Page 26: Electronic Adjustment On The Machine
First start-up Non-compliant flue gas exhaust. ing and pressing). ▶ All situations that may involve operation abnormali- Execute a command (by pressing). ▶ ▶ ties or are potentially hazardous. Exit a menu and go back to the higher level by select- ▶... -
Page 27: Modifying Settings
First start-up may exclusively be carried out by a Robur TAC (Chapter 5 p. 25 ). Do not switch the appliance on/off with the power supply switch. This may be harmful and dangerous Installation, use and maintenance manual – GAHP A... -
Page 28: Efficiency
Maintenance for the appliance and for the system. immediately, but it will only start when there are actual service demands. Checks before switching on Before switching on the appliance, ensue that: MODIFYING SETTINGS „ gas valve open „ appliance electrical power supply (main switch Modify the settings through the DDC or CCI (GS) ON) If the appliance is connected to the DDC or to the... -
Page 29: Scheduled Routine Maintenance
There are two options for resetting a fault: 1. If the appliance is connected to a DDC you may act Table 8.1 p. 30 . through the control device, as described in the rele- Installation, use and maintenance manual – GAHP A... -
Page 30: Periods Of Inactivity
3. Switch on the appliance by means of the provided 7.6.1 Prolonged periods of inactivity control device (Paragraph 4.4 p. 21 ). Should you foresee to leave the appliance inactive for a DIAGNOSTICS OPERATIVE CODES Table 8.1 Operative codes GAHP A Code Description Warning (u) Error (E) Power cycle the appliance. - Page 31 High flue gas or generator fins Reset is automatic when the triggering board (menu 2, parameter 21). temperature condition ceases. If the code persists, shows up again or in case of doubt, contact the TAC. Installation, use and maintenance manual – GAHP A...
- Page 32 Diagnostics Code Description Warning (u) Error (E) Check configuration of other heat genera- tors on the system. Hot water temperature ex- Check water flow. ceeding operational limits Check system thermal load. Reset is automatic when the triggering condition ceases. Contact the TAC. Reset may be performed from the DDC/CCI or from the S61 Reset occurs automatically 20 minutes board (menu 2, parameter 21).
- Page 33 Outdoor temperature probe board (menu 2, parameter 21). fault If the code persists, shows up again or in case of doubt, contact the TAC. Electronic board fault Contact the TAC. NA: Not Applicable Installation, use and maintenance manual – GAHP A...
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Page 34: Appendices
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 35 (*) 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 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 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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