Robur GAHP-A HT S1 Installation, User And Maintenance Manual
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Robur GAHP-A HT S1 Installation, User And Maintenance Manual

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

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  • Page 1 Installation, user and maintenance manual GAHP-A Air-Water gas absorption heat pump powered by gas and renewable energies...
  • Page 2 Revisione: P Codice: D-LBR548 This manual has been drawn up and printed by Robur S.p.A.; whole or partial reproduction of this manual is prohibited. The original is filed at Robur S.p.A. Any use of this manual other than for personal consultation must be previously authorised by Robur S.p.A.

  • Page 3: Table Of Contents

    Installation, user and maintenance manual – GAHP-A Index of Contents PRefACe ������������������������������������������������������������������������������������������������������������4 sAfetY WARnInGs ������������������������������������������������������������������������������������������5 WARRANTY TERMS ..................................7 oVeRVIeW And teCHnICAL feAtURes ��������������������������������������������������������8 GENERAL INFORMATION ................................8 NOTES ON OPERATION OF THE APPLIANCE ........................10 TECHNICAL MANUFACTURING CHARACTERISTICS......................11 TECHNICAL DATA ..................................11 DIMENSIONS AND SERVICE PANEL ............................15 noRMAL oPeRAtIon ������������������������������������������������������������������������������������17 START UP (AND SHUT DOWN) ..............................17...

  • Page 4: Preface

    CCP: "Comfort Control Panel". CCI: "Comfort Control Interface" device. DDC: digital control panel (Direct Digital Controller). TAC: Technical Assistance Centre (authorised by Robur S.p.A.). The icons in the edge of the manual have the following meanings: = DANGER = WARNING...

  • Page 5: Safety Warnings

    Installation, user and maintenance manual – GAHP-A sAfetY WARnInGs Packing items (plastic bags, polystyrene foam, nails, etc.) must be kept out of the reach of children, as they are potentially dangerous. The appliance must only be used for the purposes for which it has been designed. Any other use is considered inappropriate and therefore dangerous.
  • Page 6 • ask for assistance to professionally qualified personnel from a telephone distant from the appliance. Moving parts, also during the appliance's start-up and shut-down cycles. Do not remove guards. Make sure the appliance cannot be started up inadvertently. PoIsonInG HAZARd Make sure the flue gas components are tight and compliant with established regulations.

  • Page 7: Warranty Terms

    Installation, user and maintenance manual – GAHP-A 2�1 WARRAntY teRMs Warranty can be invalidated by each one of the following conditions: • faulty installation • improper use • failure to follow the manufacturer’s indications about installation, use and maintenance • alteration or modification of the product or any part •...

  • Page 8: Overview And Technical Features

    oVeRVIeW And teCHnICAL feAtURes In this section you will find general information, hints on the operating principle of the appliance and its manufacturing features. This section also contains technical data and dimensional drawings of the appliance. 3�1 GeneRAL InfoRMAtIon This manual is an integral and essential part of the product and must be delivered to the user together with the appliance.
  • Page 9 Installation, user and maintenance manual – GAHP-A • Every other standard and regulation concerning the installation of equipment for summer and winter air conditioning using gas fuel. The manufacturer does not accept any contractual or extra-contractual liability for any damage caused by errors in installation and/or failure to observe the abovementioned regulations and the instructions supplied by the manufacturer itself.

  • Page 10: Notes On Operation Of The Appliance

    The appliance must never normally be switched on and off by shutting off the power supply upstream of the Controle Device (CCP, DDC or consent switch) before having used the latter first and waited for the shutdown cycle to end (approximately 7 minutes). The shutdown cycle terminates when the hydraulic pump switches off (no parts in motion).

  • Page 11: Technical Manufacturing Characteristics

    Installation, user and maintenance manual – GAHP-A The fan can be: • low consumption (S1): reduction of the electrical consumption and reduction of noise emissions • low noise (S): reduction of noise emissions • standard The GAHP heat pump can be controlled with the CCP/DDC or with a switch on the con- sent circuit.
  • Page 12 GAHP-A LT S1 GAHP-A LT S GAHP-A LT Nominal (1013 mbar - 15°C) 25,7 Thermal capacity true peak 25,2 NOx emission class NOx emission CO emission maximum for heating °C Hot water delivery temperature maximum for DHW °C maximum heating °C maximum for DHW °C...
  • Page 13 EN ISO 9614. Maximum sound pressure values measured in free field, direction factor 2, accord- ing to EN 3744. table 3�2 – GAHP-A HT technical data GAHP-A HT S1 GAHP-A HT S GAHP-A HT oPeRAtIon WHen HeAtInG G.U.E.
  • Page 14 GAHP-A HT S1 GAHP-A HT S GAHP-A HT Maximum operating pressure Maximum condensation water flow rate Water content inside the apparatus TYPE Water fitting thread " G 1 1/4 TYPE Gas fitting thread " G Diameter (∅) Fume outlet Residual head...

  • Page 15: Dimensions And Service Panel

    Installation, user and maintenance manual – GAHP-A 3�5 dIMensIons And seRVICe PAneL figure 3�1 – Size (Standard ventilation) LeGend Posizione dei supporti antivibranti (opzionali) Front and side views (dimensions in mm). figure 3�2 – Dimensions (low consumption ventilation – S1) Front and side views (dimensions in mm).
  • Page 16 figure 3�3 – Dimensions (low noise version) LeGend Posizione dei supporti antivibranti (opzionali) Front and side views (dimensions in mm). figure 3�4 – Service plate LeGend Gas fitting Ø ¾” F Inlet water fitting Ø 1¼” F Outlet water fitting Ø 1¼” F Hydraulic/gas unions detail...

  • Page 17: Normal Operation

    Installation, user and maintenance manual – GAHP-A noRMAL oPeRAtIon In this section you will find all the indications necessary for the activation, regulation and control of operation of the appliance depending on the type of installation and control setup. tYPe A: controlled by CCP (see Figure 6.3 Comfort Control Panel e Accessory → 43, •...
  • Page 18 tYPe C: stAndALone APPLIAnCe Stand alone appliances must be activated and deactivated only by means of the consent switch provided by the electrical installation technician. According to requirements, this consent switch may be an on/off button, an ambient thermostat, a programmable timer, or one or more voltage free contacts controlled by another process.

  • Page 19: On-Board Electronics

    MANUAL DEFROSTING → 22. After it is reset, the appliance will make a new attempt to activate. If the appliance locks out several times, contact a Robur TAC by calling the Technical Serv- ice Department of Robur S.p.A. (tel. +39.035.888111).
  • Page 20 Menu 7 is to be used ONLY by the Robur TAC. To view the information contained in these menus, proceed as illustrated in the para- graph "How to acces the menus".
  • Page 21 To set new values for the param- eters, see Paragraph 5.8 PROGRAMMING OF HYDRAULIC PARAMETERS → 37. Menus 4, 5, 6 and 7 exclusively concern the installation technician and Robur’s author- ized Technical Assistance Centre.

  • Page 22: Reset Operations And Manual Defrosting

    "23", "24" and "25" are used to regulate the combustion parameters or for gas type changeovers, and are thus for use only by the installation technician or Robur TAC (for other information refer to Paragraph 7.1 PROCEDURE FOR FIRST START UP → 69).
  • Page 23 Installation, user and maintenance manual – GAHP-A You will need: access to the electrical panel, see Paragraph "Display and knob". To reset the flame control unit select menu 2, as indicated in the Paragraph "Accessing the Menus"; then proceed as follows: The display shows: "2."...

  • Page 24: Operating Settings

    To execute the manual defrosting command, select menu 2 as described in the Para- graph "how to access the menus", then proceed as follows: The display shows: "2." press the knob to access the menu. The display initially shows item "2. 20". Turn the knob clockwise to display "2.
  • Page 25 In case of precence of glycol, Robur advices to use inhibited glycol. Galvanized pipes are not recommended, as they are not compatible with glycol.
  • Page 26 check that the hydraulic circuit is charged; Check that the condensate discharge is clean; check that exhaust duct is not obstructed; switch on the appliance by means of the on/off command (or DDC if present and in control mode, or via CCP, if present).

  • Page 27: Hydraulic Installation

    Installation, user and maintenance manual – GAHP-A HYdRAULIC InstALLAtIon In this section you will find all the instructions necessary for the hydraulic installation. Before realizing hydraulic system and gas supply for the appliance, the professionally qualified personnel is advised to read Paragraph 3.1 GENERAL INFORMATION → 8, pro- viding important recommendations about safety and references to current regulations.
  • Page 28 If the appliance has to be lifted, pass slings into the openings in the base supports and use spreader bars to prevent the slings from damaging the casing during handling (see Figure 5.1 Instruction for lifting → 28). The lifting crane and all accessory devices (braces, cables, bars) must be suitable sized for the load to be lifted.
  • Page 29 Installation, user and maintenance manual – GAHP-A controlled" spread of water around the appliance and the consequent risk that a layer of ice will form (with the danger of falls on the part of passing people). the manufacturer may not be held responsible for any damage arising from failure to observe this warning�...

  • Page 30: Hydraulic Connections

    If using rigid pipes, use vibration damping couplings at the water and gas connec- tions on the appliance's service plate to prevent vibration. As other hydronic appliances, Robur heating and cooling systems operate with grid-wa- ter of good quality. In order to prevent any possible problem of operation or reliability...
  • Page 31 Please make sure the pipes are properly rinsed in order to remove any residue of chemi- cal substances from the pipes. Robur is not liable for ensuring that water quality is always compliant with what reported in Table 5.1 Chemical and physical parameters of water → 31. Non-compliance with in- dications above may jeopardize the proper operation, integrity and reliability of Robur appliances, invalidating the warranty.

  • Page 32: Gas Supply

    Robur Technical Assistance Centre (TAC). These operations are described in Section 7 INITIAL ACTIVATION AND MAINTENANCE → 69. The products' guarantee is void if initial activation is not carried out by a Robur TAC. 5�4...

  • Page 33: Condensate Discharge

    Installation, user and maintenance manual – GAHP-A LPG may cause corrosion; piping and fitting materials must be resistant to this corrosion. Vertical gas pipes must be equipped with a siphon and provided with a drain for the con- densate that may form inside the pipe during cold periods. It may also be necessary to insulate the gas pipe to prevent the formation of excessive condensate.

  • Page 34: Filling Of Hydraulic Circuit

    figure 5�3 – Position of condensate discharge and manual reset fumes thermostat LeGend Condensate discharge hose fumes thermostat manual reset Corrugated hose The condensate discharge to the sewer must be: • sized so as to discharge the maximum condensation flow (see Table 3.1 GAHP-A LT technical data →...
  • Page 35 Installation, user and maintenance manual – GAHP-A Activate the automatic air purging valves of the plant and open all thermostatic valves. Fill the hydraulic circuit with clean water and add, if necessary, the proper quantity of monoethylene glycol according the minimum winter temperature in the instal- lation site (see table 5.3 Technical data for filling the hydraulic circuit →...

  • Page 36: Exhaust Flue Gas

    table 5�3 – Technical data for filling the hydraulic circuit % of MonoetHYLene GLYCoL WATER-GLYCOL MIXTURE FREEZING TEMPERATURE -3°C -5°C -8°C -12°C -15°C -20°C -25°C PERCENTAGE OF INCREASE IN PRESSURE DROPS LOSS OF EFFICIENCY OF UNIT 0,5% 2,5% If the percentage of glycol is ≥ 30% (for ethylene glycol) or ≥ 20% (for propylene glycol): •...

  • Page 37: Programming Of Hydraulic Parameters

    Installation, user and maintenance manual – GAHP-A figure 5�4 – Fume outlet LeGend Curve 90° Ø 80 Pipe Ø 80 Lg.300 mm w/terminal rain cover 5�8 PRoGRAMMInG of HYdRAULIC PARAMeteRs The operations described in this paragraph are necessary only if the appliance is not con- nected to a DDC or to a CCP.
  • Page 38 • Hot water thermostat control, parameter 160. This parameter takes two values: "0" and "1". Value "0" indicates that the appliance's "activation/deactivation" tempera- ture is to be read by the water probe at the appliance’s INTAKE. Value "1" indicates that the appliance’s "activation/deactivation" temperature is to be read by the wa- ter probe at the appliance’s OUTLET.
  • Page 39 Installation, user and maintenance manual – GAHP-A To exit the menu, turn the knob clockwise until E is displayed, then press it to confirm. For details regarding the codes displayed by the appliance during operation, see Paragraph 9.1 OVERVIEW AND OPERATING CODES/TROUBLESHOOTING → 78.

  • Page 40: Electrical Installation

    Installation that is incorrect or that does not comply with current legislation may cause damage to people, animals or things; Robur S.p.A. is not responsible for any damage caused by installation that is incorrect or that does not comply with current legislation.
  • Page 41 Installation, user and maintenance manual – GAHP-A figure 6�1 – Electronic board S61 LeGend See table below SCH S61 table 6�1 – Electronic board S61 CODE DESCRIPTION SCH1 Electronic board S61 SCH3 Mod10 electronic controller (see figure for further details) A1, A2 Auxiliary inputs Knob...
  • Page 42 CODE DESCRIPTION Generator temperature probe input THMF Hot water delivery temperature probe input THRF Hot water return temperature probe input Generator limit thermostat input SCH S61 figure 6�2 – Mod10 controller LeGend HFLOW Not used CFLOW Condensation water sensor control SPI connector HPMP Primary circuit hot water pump control...
  • Page 43 Installation, user and maintenance manual – GAHP-A figure 6�3 – Comfort Control Panel e Accessory LeGend Optional components to predict Comfort Control Panel QAA55 Base room unit Components componing the CCP QAA75 Room unit AVS37 Comfort Control Siemens QAA78 Radio room unit RVS61 System controller and set-point ASV71...
  • Page 44 figure 6�4 – CCI/DDC...

  • Page 45: Electrical Diagram Of The Appliance

    Installation, user and maintenance manual – GAHP-A 6�1 eLeCtRICAL dIAGRAM of tHe APPLIAnCe figure 6�5 – Wiring diagram of the unit with standard/ low noise fan (S)

  • Page 46: How To Connect The Appliance Electrically

    figure 6�6 – Wiring diagram of the appliance with low consumption fan (S1) LeGend Gas valve ON indicator lamp THMC Hot water delivery temperature sensor SCH1 S61 circuit board Gas solenoid valve TMIX Combustion air temperature sensor SCH2 W10 circuit board Manual fumes thermostat Ambient air temperature sensor SCH3...

  • Page 47: Type A (Comfort Control Panel)

    Installation, user and maintenance manual – GAHP-A Prepare the electrical connection in such a way that the ground wire is longer than the live wires. In this way it will be the last wire to be torn away if the cable is ac- cidentally pulled off;...
  • Page 48 6.2 CAN BUS cables type → 48 and cut the remaining ones. The ROBUR NETBUS cable is available as an accessory, see Section 8 ACCESSORIES → 77. How to connect the CAn BUs cable to the appliance's electronic board The CAN BUS cable must be connected to the dedicated terminals on the appliance’s...
  • Page 49 Installation, user and maintenance manual – GAHP-A figure 6�9 – CAN BUS cable connection LeGend protective isolating tape shielding of CAN BUS cable (pre- wired to last unit) cable bracket (the CAN BUS cables of an intermediate node are present) CAN BUS/circuit board connector wires (6) of the CAN BUS cable (intermediate node)
  • Page 50 figure 6�10 – Electrical wiring diagram LeGend Data signal HIGH Detail case "intermediate node" (6 electronic board Jumper CAN-BUS in board wires; J1=jumper "open") Common data Detail case "terminal node" (3 wires; Port can/connector Data signal LOW J1=jumper "closed") Connection cable CAN BUS to electronic board: detail A case "terminal node", detail B case "intermediate node" After finished with all the above operations, close the electrical panel and refit the front panel of the appliance.
  • Page 51 The CCI is is equipped with a backup battery which, if the power supply fails, is capable of storing set values in the memory; the backup battery has a service life of around 7 years, after which it is necessary to replace it (by contacting a ROBUR Technical Assist- ance Centre).
  • Page 52 figure 6�12 – Connection of CCI to CAN-BUS network LeGend detail of "terminal node" case (3 wires; J21=jumper "closed") Comfort Control Interface Detail of "intermediate node" case (6 wires; J21=jumper "open") Orange connector H,L,GND Data signal wires Jumpers CAN-BUS on CCI board Jumpers J21 closed The following wiring diagrams show the connection of the CCI to 1 appliance (Figure 6.13 Connection of CCI to 1 appliance →...
  • Page 53 Installation, user and maintenance manual – GAHP-A figure 6�14 – Connection of CCI to 3 appliances LeGend Comfort Control Interface s61 controller Connection of CCI to 3 appliances How to connect the Comfort Control Panel You will need: the appliance disconnected from the electricity supply...
  • Page 54 To optimise the operation of the appliance it is necessary to install, on the primary circuit, variable rate WILO STRATOS PARA pumps (see Section 8 ACCESSORIES → 77) which are controlled and modulated with the Robur Mod10 controller. No other models pump are supported.
  • Page 55 Installation, user and maintenance manual – GAHP-A figure 6�15 – Wiring diagram for connection of Wilo variable rate pumps LeGend Bipolar pump power switch fuse Hot water circulation pump (primary circuit) Pump signal 0-10V wire colours brown connect to -ve white connect to +ve black isolate blue isolate...

  • Page 56: Type B (Ddc)

    figure 6�16 – Wiring diagram for hooking up the Wilo variable rate pump powered by the unit LeGend Hot water circulation pump (primary circuit) Unit terminal block Pump signal 0-10V wire colours brown connect to -ve white connect to +ve black isolate blue isolate Wiring diagram for hooking up the Wilo variable rate pump powered by the unit...
  • Page 57 6.2 CAN BUS cables type → 48 and cut the remaining ones. The ROBUR NETBUS cable is available as an accessory, see Section 8 ACCESSORIES → 77. How to connect the CAn BUs cable to the appliance's electronic board The CAN BUS cable must be connected to the dedicated terminals on the appliance’s...
  • Page 58 intermediate node repeat the operations from step 2 to step If the appliance is an 5 for the other cables required (in this way you will have two cable lengths each one without the jacket on one end). Twist together the cores with the same color and connect them to the orange connector, as shown in detail "B"...
  • Page 59 Installation, user and maintenance manual – GAHP-A Roll the shielding and connect it to a 4-mm eyelet terminal, as illustrated in Figure 6.11 Connection from CAN BUS to connector P8 → 51, details C and D. Now pro- ceed as follows: terminal node connect the three coloured wires to the orange If the DDC is an connector "P8", following the diagram provided in detail "A"...
  • Page 60 The DDC is equipped with a backup battery which retains the memory settings in case of power failure. the backup battery lasts approximately 7 years, after which time it must be replaced by an authorised Robur Technical Assistance Centre. figure 6�18 – CCI/DDC - electric supply...
  • Page 61 Installation, user and maintenance manual – GAHP-A figure 6�19 – Connexion câble CAN BUS for plants with one unit LeGend direct digital control electronic board S61 Jumper CAN-BUS in board S61 Jumper CAN-BUS in board DDC terminal nodes connection - (3 wires; J1 e J21 = "closed") H,L,GND data signal wires (rif.
  • Page 62 figure 6�20 – Connexion câble CAN BUS for plants with more unit Connexion câble CAN BUS between one DDC and more unit How to connect the plant water circulation pump The control of the circulation pump from the electronic board of the appliance depends on the power rating of the pump itself.
  • Page 63 Installation, user and maintenance manual – GAHP-A • If the power of the pump is lower than 700 W, make the connection as shown in Figure 6.21 Electrical wiring diagram → 63 and check that the jumper J10 (locat- ed at the bottom left of the electronic board, above the "NO Contact" contacts) is CLOSED, as shown in detail A.
  • Page 64 figure 6�22 – Electrical wiring diagram LeGend circuit board open jumper N.O. CONTACT N.O voltage free contacts unit terminal block phase neutral Components NOT SUPPLIED water pump > 700W pump relay Example of pump/appliance electrical connection with 230 Vac pump (with absorbed power equal or more than 700 W), controlled directly by the appliance through a relay If several appliances are connected on the same hydraulic circuit, it is always necessary to provide a safety transformer (SELV secondary) with relevant relay;...
  • Page 65 Installation, user and maintenance manual – GAHP-A figure 6�23 – Electrical wiring diagram Example of pump/appliance electrical connection with 230 Vac pump, controlled directly by the appliance through a relay and a SELV safety transformer...

  • Page 66: Type C (Consent Switch)

    Variable flow pump WILO STRATOS PARA can also be used (see Section 8 ACCESSO- RIES → 77). In this case, for the electrical wiring of the pump, please refer to Figure 6.15 Wiring diagram for connection of Wilo variable rate pumps → 55 and the relevant paragraph.

  • Page 67: How To Reset The Flame Controller From Remote

    Installation, user and maintenance manual – GAHP-A How to connect the plant water circulation pump For how to connect the system pumps, see the section with this title in Paragraph 6.4 TYPE B (DDC) → 56. Variable flow pump WILO STRATOS PARA can also be used (see Section 8 ACCESSO- RIES →...
  • Page 68 figure 6�25 – Button connection for flame controller reset...

  • Page 69: Initial Activation And Maintenance

    PRoCedURe foR fIRst stARt UP The entire procedure for the initial activation of the appliance must only carried out by an authorised Robur Technical Assistance Centre (TAC). The product's guarantee may be void if the procedure is not carried out by a Robur TAC.
  • Page 70 During the initial activation procedure, the combustion parameters must be checked and set ONLY by a Robur TAC. In this stage, NEITHER the user NOR the installation technician is authorised to perform such operations, and in so doing may invalidate the guarantee of the appliance.
  • Page 71 Installation, user and maintenance manual – GAHP-A The type of gas for which the appliance is set up can be identified from the sticker posi- tioned on the gas pipe inside the unit (see detail M, Figure 7.2 Gas changeover → 76). The nozzles required to change the gas type to G30 and G31 are supplied together with the appliance.
  • Page 72 Table 7.3 Gas nozzles and content of CO2 → 75 at the "Content of CO with/Max modulation" line with tolerance of +0.2 -0.4. If you cannot calibrate the CO percentage after the second attempt, DO NOT activate the appliance; contact Robur technical service at +39 035/888111.

  • Page 73: Maintenance

    The maintenance operations described in this paragraph must be performed exclusively by the serviceman in charge of the plant or by an authorized CAT Robur. Any operation that regards internal components of units of the appliance must be car- ried out by an authorized Robur Technical Assistance Centre (TAC), according to the in- structions supplied by the manufacturer.

  • Page 74: Change Of Gas Type

    7�3 CHAnGe of GAs tYPe This operation must be carried out exclusively by an authorised Robur Technical Assist- ance Centre (TAC). If the appliance is to be used with a type of gas other than that indicated on the the adhe- sive label located on the unit's electric panel, switch off the appliance, shut off its power and gas supplies and proceed as follows (see Figure 7.2 Gas changeover →...
  • Page 75 Installation, user and maintenance manual – GAHP-A Using a CH 4 hex key, undo the 4 bolts G indicated in Figure 7.2 Gas changeo- ver → 76 and remove the nozzle D from the gas valve. → 76) with those Replace the nozzle and o-ring C (see Figure 7.2 Gas changeover of the diameter suited to the new type of gas (see Table 7.3 Gas nozzles and con- tent of CO2 →...
  • Page 76 figure 7�2 – Gas changeover LeGend Gas valve O-ring O-ring Gas nozzle Fixing screws Red silicon pipe Fixing screws Manual reset fumes thermostat Gas changeover...

  • Page 77: Accessories

    Installation, user and maintenance manual – GAHP-A ACCessoRIes This section contains a list of the accessories that are available for the installation and use of the appliance. To order these accessories, contact Robur S.p.A. on +39 035.888111. table 8�1 – Accessories ACCessoRIes...

  • Page 78: Operating Codes/Troubleshooting

    oPeRAtInG Codes/tRoUBLesHootInG 9�1 oVeRVIeW And oPeRAtInG Codes/tRoUBLesHootInG table 9�1 – TABLE OF OPERATING CODES generated by the S61 electronic board (firmware version 3.024) CODES DESCRIPTION TRIP CONDITIONS RESET METHOD FAULT ON RESET CIRCUIT OF FLAME E 400 Fault on reset circuit of flame control unit. Contact authorised Technical Assistance.
  • Page 79 Installation, user and maintenance manual – GAHP-A CODES DESCRIPTION TRIP CONDITIONS RESET METHOD Reset may be performed from the controller (or from the S61 board u_36 code generated three times in 1 hour of E 436 BLOWER FAULT via menu 2, parameter 21). If the code persists, contact authorised operation.
  • Page 82 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 Spa tecnologie avanzate per la climatizzazione Via Parigi 4/6 24040 Verdellino/Zingonia (Bg) Italy T +39 035 888111∅F +39 035 884165...

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