Robur GAHP-AR Installation, Use And Maintenance Manual
Air-water reversible absorption heat pumps for heating and cooling
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Summary of Contents for Robur GAHP-AR
- Page 1 Installation, use and maintenance manual GAHP-AR Air-Water reversible absorption heat pumps for heating and cooling 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
Water circulation pump ..........p. 18 9 Appendices Antifreeze function ............p. 18 ................p. 34 Antifreeze liquid ............p. 19 Product fiche..............p. 34 System water quality ........... p. 19 Safety devices ..............p. 36 System filling ..............p. 19 Installation, use and maintenance manual – GAHP-AR... -
Page 4: Iintroduction
CONTROL DEVICE In order to be able to work, the GAHP-AR unit needs a control RECIPIENTS device (DDC or external request), which must be connected by the installer. - Page 5 „ For electrical connections exclusively use compliant „ Use only original parts. components and according to the specifications provid- ed by the manufacturer. „ Ensure the appliance cannot be accidentally switched back on. Installation, use and maintenance manual – GAHP-AR...
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Page 6: Iii.2 Conformity
Warnings Decommissioning and disposal installation, use and maintenance. „ Alteration or modification of the product or any part thereof. If the appliance is to be disposed of, contact the manu- „ Extreme operational conditions or however outside of facturer for its disposal. the operational ranges set forth by the manufacturer. -
Page 7: Features And Technical Data
Multigas pre-mixing burner equipped with ignition and Standard or silenced fan ▶ flame detection managed by an electronic control unit. According to the type of fan the GAHP-AR unit is available in two Titanium stainless steel shell-and-tube water heat exchang- ▶ versions: er, externally insulated. - Page 8 Features and technical data Figure 1.2 Dimensions (silenced fan) Position of holes for fixing of anti-vibration joints Figure 1.3 Service plate - Hydraulic/gas unions detail Gas connection Ø 3/4" F Water outlet connection Ø 1 1/4" F Water inlet connection Ø 1 1/4" F...
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Page 9: Components
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 Gas valve TA outdoor temperature probe Electrical panel Oil pump Installation, use and maintenance manual – GAHP-AR... - Page 10 Features and technical data Figure 1.5 Internal components - left side view Generator fins temperature probe Flame sensor / ignition electrodes Ø 80mm flue gas exhaust...
- Page 11 Safety valve Flow temperature probe Return temperature probe Flow switch Defrosting valve Teva evaporator temperature probe TG generator temperature probe TCN probe Limit thermostat Installation, use and maintenance manual – GAHP-AR...
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Page 12: Electrical Wiring Diagram
Features and technical data ELECTRICAL WIRING DIAGRAM Figure 1.7 Unit GAHP-AR wiring diagram SCH1 Controller S61 Gas solenoid valve Ambient air temperature sensor SCH4 AR11 electronic board Generator limit thermostat Generator temperature sensor Power supply terminal block Water flow switch TEVA... - Page 13 Connection for generator fins temperature MAIN 230V (L,N) Board supply input 230 Vac T 3,15A fuse probe PUMP 230V (L, N) Oil hydraulic pump supply output Not used N.O. Contact Circuit water circulating pump Installation, use and maintenance manual – GAHP-AR...
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Page 14: Controls
ON/OFF mode (non modulating). For more details refer to the DDC, RB100, RB200 manuals and the design manual. DDC Controller The main functions are: Setup and control of one (or more) Robur units of the ab- ▶ sorption line (GAHP, GA, AY). Data display and parameters setting. - Page 15 (11) Sound power values detected in compliance with the intensity measurement methodology set forth by standard EN ISO 9614. (12) Maximum sound pressure levels in free field, with directionality factor 2, obtained from the sound power level in compliance with standard EN ISO 9614. (13) Overall dimensions excluding fumes pipes. Installation, use and maintenance manual – GAHP-AR...
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Page 16: Transport And Positioning
▶ of the base (Figure 2.1 p. 16 ). Use lifting beams to avoid damaging the outer panels and ▶ GAHP-AR unit ventilation finned coil (Figure 2.1 p. 16 ). Comply with safety regulations at the installation site. ▶ „ The aerothermic appliance requires a large space, venti-... -
Page 17: Minimum Clearance Distances
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 mat- ters of safety, design, implementation and maintenance Installation, use and maintenance manual – GAHP-AR... -
Page 18: Hydraulic System
Heating engineer HYDRAULIC SYSTEM B (= in) 1 1/4" F - WATER INLET (r = return from the system) ▶ Hydraulic pipes, materials and features Primary and secondary circuit Use pipes for heating/cooling installations, protected from ▶ In many cases it is advisable to divide the hydraulic system ▶... -
Page 19: Antifreeze Liquid
The chemical-physical properties of the system's water may alter Install an anti-vibration connection between the appliance ▶ over time, resulting in poor operation or excessive topping up. and the gas piping. Ensure there are no leaks in the installation. ▶ Installation, use and maintenance manual – GAHP-AR... -
Page 20: Combustion Products Exhaust
2E(S) 3B/P Flue gas exhaust kit (1) GAHP-AR not approved for G25.1, G25.3 gases. (2) GA ACF not approved for G25.1, G27, G2.350, G25.3 gases. The appliance is supplied with flue gas exhaust kit, to be fitted by the installer, including (Figure 3.2 p. 21 ): Vertical pipes and condensate 1 Ø... -
Page 21: Flue Gas Condensate Discharge
Figure 3.2 Components of exhaust air duct kit duct. 3.11 FLUE GAS CONDENSATE DISCHARGE The GAHP-AR unit produces condensation water from the com- bustion flue gas. Condensate acidity and exhaust regulations The flue gas condensate contains aggressive acid sub- stances. Refer to applicable regulations in force for con- densate exhaust and disposal. -
Page 22: Electrical Installer
6. Make the connections. 7. Close the electrical panel and fit the front panel back on. Compliance with installation standards Figure 4.1 GAHP-AR electrical panel Installation must comply with applicable regulations in force, based on the installation Country and site, in mat- ters of safety, design, implementation and maintenance of electrical systems. -
Page 23: Set-Up And Control
The CAN bus communication network, implemented with the Figure 4.2 Power supply connection cable of the same name, makes it possible to connect and re- Terminal block motely control one or more Robur appliances with the DDC con- Phase trol device. Neutral... - Page 24 Electrical installer GAHP Configuration (S61) + DDC System (1) see also Paragraph 1.6 p. 14 . 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 H,L,GND Data signal wires (ref.
- Page 25 Data signal HIGH Jumpers CAN bus on DDC board Detail of "terminal node" case (3 wires; J21 = jumper "closed") Detail of "intermediate node" case (3 wires; J21 = jumper "closed") CAN port/connector Installation, use and maintenance manual – GAHP-AR...
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Page 26: Water Circulation Pump
Appliance correctly installed, according to the manufactur- ▶ Robur TAC. NEITHER the user NOR the installation tech- er's instructions. nician is authorised to perform such operations, under System installed in a workmanlike manner, according to na- ▶... -
Page 27: Electronic Adjustment On The Machine - Menus And Parameters Of The S61 Board
Enter the menu list (by pressing the first time). ter 20 in menu 2). ▶ Scroll the menu list, or a series of parameters in a menu (by 7. Turn the knob clockwise to scroll down the other ▶ Installation, use and maintenance manual – GAHP-AR... -
Page 28: Modifying Settings
First startup by TAC „ water circuit ready How to switch on/off First start-up may exclusively be carried out by a Robur TAC (Chapter 5 p. 26 ). The appliance may be turned on/off, in heating or cooling mode by seasonal heating/cooling switching, to alternatively produce Never power the appliance off while it is running hot water or chilled water, according to conditioning needs. -
Page 29: Modifying Settings
(1) It is suggested to clean the finned coil once every 4 years (optimal frequency of the cleaning operation is in any case strongly affected by the installation site). Avoid excessively aggressive cleaning of the finned coil (e.g. high-pressure washer). SCHEDULED ROUTINE MAINTENANCE For scheduled routine maintenance, perform the operations in Table 7.2 p. 30 , at least once every 2 years. Installation, use and maintenance manual – GAHP-AR... -
Page 30: Messages On The Display
Maintenance Table 7.2 GAHP A GAHP GS/WS AY00-120 GA ACF GAHP-AR Ordinary scheduled maintenance clean the combustion chamber √ (1) √ (1) √ √ √ (1) clean the burner √ (1) √ (1) √ √ √ (1) Check of the unit clean the ignition and flame sensor electrodes √... -
Page 31: Diagnostics
Reset may be performed from the DDC or from the S61 board (menu Condenser temperature probe 2, parameter 1). fault If the code persists, shows up again or in case of doubt, contact the TAC. Installation, use and maintenance manual – GAHP-AR... - Page 32 Diagnostics Reset may be performed from the DDC or from the S61 board (menu 2, parameter 1). Generator temperature probe fault NA If the code persists, shows up again or in case of doubt, contact the TAC. Reset may be performed from the DDC or from the S61 board (menu Generator fins temperature probe Reset is automatic when the triggering condi- 2, parameter 1).
- Page 33 Reset may be performed from the DDC or from the S61 board (menu 2, parameter 1). Outdoor temperature probe 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-AR...
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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 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) .
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Page 36: Safety Devices
180 °C ± 7 °C code 60R180H02/04154 J-TLT015 generator contact type (normally closed) or similar* Robur S.p.A. Bypass valve Valve and actuator 25,5 + 0/-2 bar — code H-VLV108 * The manufacturer guarantees the functioning and the safety of the unit only if it is equipped with original spare parts... - Page 37 (see key in Figure 9.4 p. 37 ). ▶ Figure 9.4 Safety valve kit - Componenents required for service 1 safety valve 1 O-ring 1 litmus paper The components subject of the intervention are represented in Figure 9.5 p. 38 . Installation, use and maintenance manual – GAHP-AR...
- Page 38 Appendices Figure 9.5 Detail of safety valve mounted on unit - Description of com- ponents involved in the operation ...
- Page 39 Figure 9.8 o-ring - Down view Detail O-ring Figure 9.9 Inspection valve - Detail A of fixed part, detail B of remov- able part Fixed part Removable part Installation, use and maintenance manual – GAHP-AR...
- Page 40 Appendices Figure 9.10 Inspection valve assembly - Assembly of removable part Hold in place Turn clockwise 1. Test for the absence of ammonia using a phenolphthalein test strip. 2. Mount the unit upper panel. WARNING! DO NOT START THE APPLIANCE WITHOUT THE SAFETY VALVE. 9.2.4 Non-condensable or non-absorbable gases Indirect control of the presence of non-condensable or non-absorbable gas in the hermetic circuit or internal corrosion...
- Page 44 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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