Robur GAHP Series Installation, Use And Maintenance Manual

Modular heating unit and heater/chiller powered by gas and renewable energy

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Installation, use and maintenance manual
Preassembled groups
Modular heating unit and heater/chiller
powered by gas and renewable energy

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Summary of Contents for Robur GAHP Series

  • Page 1 Installation, use and maintenance manual Preassembled groups Modular heating unit and heater/chiller powered by gas and renewable energy...
  • 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

    INDEX OF CONTENTS Introduction System water quality ........... p. 28 ................p. 4 System filling ..............p. 28 Recipients ................p. 4 Fuel gas supply .............. p. 29 Control device ..............p. 4 Combustion products exhaust ........ p. 29 II Symbols and definitions ..........p. 4 3.10 Flue gas condensate discharge ........ p. 30 II.1 Key to symbols ..............
  • Page 4: Iintroduction

    WARNING valves, circulating pumps), including any integration boiler. DDC Control (Direct Digital Controller) = optional Robur device to control one or more Robur appliances (GAHP heat pumps, GA NOTE chillers and AY boilers) in ON/OFF mode. RB100/RB200 Devices (Robur Box) = optional interface devices...
  • Page 5 Warnings Misuse Distance from combustible or flammable materials The preassembled group must only be used for the pur- „ Do not deposit flammable materials (paper, diluents, poses for which it has been designed. Any other use is paints, etc.) near the preassembled group. deemed hazardous.
  • Page 6: Iii.2 Conformity

    The GAHP/GA/AY modules/appliances that are part of RT__ Link, III.3 EXCLUSIONS OF LIABILITY AND namely the GAHP series heat pumps, GA ACF series chillers, and WARRANTY AY00-120 condensing boilers comply with the essential re- quirements of the following standards and directives, each as...
  • Page 7: Features And Technical Data

    Features and technical data FEATURES AND TECHNICAL DATA For the characteristics of the individual modules (GAHP/GA/AY The aerothermal modules of RT__ Links may be in configuration: units) that make up the RT__ Link, and of the control devices with standard fans (STD); ▶...
  • Page 8 Features and technical data 9. (2 letters) circulators (with or without) and type (standard or The 1.1  p.  8 table/figure exemplifies the meaning of the en- oversize); coding in detail, providing the key for reading any possible com- 10. (1 letter) predispositions, if any. position and configuration, starting from an example.
  • Page 9: Dimensions And Weights

    Features and technical data DIMENSIONS AND WEIGHTS The dimensions are given for the maximum footprint Figure 1.3   Position of water, gas and condensate connections for configuration. 4-pipe groups - Right side view (dimensions in mm) The weights are given for the maximum weight config- uration.
  • Page 10 Features and technical data Figure 1.4   Position of water, gas and condensate connections for 6-pipe groups - Top view (dimensions in mm) Condensate discharge connection [1" F] (only for groups with more than one condensing unit). Sloping manifold, strictly connect on right side Gas connection [1 1/2"...
  • Page 11 Features and technical data Figure 1.6   Preassembled ACF/A/AR group (with 2, 3, 4 and 5 units) - Dimensions and weights of preassembled units - front view (dimensions in mm) 960 kg 1440 kg 1920 kg 2410 kg Installation, use and maintenance manual – RT__ Link...
  • Page 12 Features and technical data Figure 1.7   Preassembled AY group (with 2, 3, 4 and 5 units) - Dimensions and weights of preassembled groups - front view (dimensions in mm) 2 AY 330 kg 3 AY 450 kg 4 AY 580 kg 5 AY 700 kg Note: The weight refers to links configured with oversize circulators...
  • Page 13 Features and technical data Figure 1.8   Preassembled ACF/A/AR + AY group (with 1+1, 1+2, 1+3, 1+4 units) - Dimensions and weights of preassembled groups - front and top view (dimensions in mm) 1+2 790 kg (*) 1+3 970 kg 1+4 1070 kg (*) The weight refers to a 2 pipe link (silent ventilation, "S"), configured with oversize circulators The GAHP/GA + 1 AY00-120 configurations are replaced by the Gitié...
  • Page 14 Features and technical data Figure 1.9   Preassembled ACF/A/AR + AY group (with 1+5, 2+1 and 2+2 units) - Dimensions and weights of preassembled groups - front and top view (dimensions in mm) 1+5 1210 kg (**) 2+1 1150 kg (*) 2+2 1270 kg (*) The weight refers to a 2 pipe link (silent ventilation, "S"), configured with oversize circulators (**) The weight refers to a 4 pipe link (silent ventilation, "S"), configured on both circuits with oversize circulators...
  • Page 15 Features and technical data Figure 1.10   Preassembled ACF/A/AR + AY group (with 2+3, 2+4 and 2+5 units) - Dimensions and weights of preassembled groups - front and top view (dimensions in mm) 2+3 1460 kg (*) 2+4 1560 kg (**) 2+5 1700 kg (**) The weight refers to a 2 pipe link (silent ventilation, "S"), configured with oversize circulators (**) The weight refers to a 4 pipe link (silent ventilation, "S"), configured on both circuits with oversize circulators Installation, use and maintenance manual –...
  • Page 16 Features and technical data Figure 1.11   Preassembled ACF/A/AR + AY group (with 3+1, 3+2 and 3+3 units) - Dimensions and weights of preassembled groups - front and top view (dimensions in mm) 1554 1529 1554 4936 3+1 1630 kg (*) 3+2 1750 kg (*) 3+3 1880 kg (**) The weight refers to a 2 pipe link (silent ventilation, "S"), configured with oversize circulators (**) The weight refers to a 4 pipe link (silent ventilation, "S"), configured on both circuits with oversize circulators...
  • Page 17 Features and technical data Figure 1.12   Preassembled ACF/A/AR + AY group (with 3+4 and 3+5 units) - Dimensions and weights of preassembled groups - front and top view (dimensions in mm) 3+4 2060 kg (*) 3+5 2190 kg (*) The weight refers to a 4 pipe link (silent ventilation, "S"), configured on both circuits with oversize circulators Installation, use and maintenance manual –...
  • Page 18 Features and technical data Figure 1.13   Preassembled ACF/A/AR + AY group (with 4+1, 4+2, 4+3 and 4+4 units) - Dimensions and weights of preassembled groups - front and top view (dimensions in mm) 4+1 2120 kg (*) 4+2 2240 kg (**) 4+3 2380 kg (**) 4+4 2480 kg (**) The weight refers to a 2 pipe link (silent ventilation, "S"), configured with oversize circulators (**)
  • Page 19: Roma Valve

    Features and technical data ROMA VALVE detailed in the following Figure 1.14  p.  19 for the GAHP/GA Preassembled groups equipped with water circulation pumps are also equipped with a check valve, mounted downstream of units and in the following Figure 1.15  p.  19 for the AY00-120 each water circulation pump, equipped with air vent valves, as units.
  • Page 20: Independent Circulators Selector Switch Settings

    Features and technical data INDEPENDENT CIRCULATORS SELECTOR For Wilo Yonos Para circulators (standard on RT__ Links already provided with circulators) the selector switch must be set as SWITCH SETTINGS shown in Figure 1.17  p. 20 . In the RT__ Links already provided with circulators, each circu- lator is provided with a selector switch to determine the driving Figure 1.17  ...
  • Page 21: Electrical Specifications

    Features and technical data ELECTRICAL SPECIFICATIONS Group Electrical Panel Figure 1.18   Group Electrical Panel Group electrical panel (QEG) switch disconnector "ID01" unit magnetothermic breaker transformer 230/24 Vac "ID02" unit magnetothermic breaker M1 transformer primary fuse "ID03" unit magnetothermic breaker M2 condensate heating resistance protection fuse "ID04"...
  • Page 22: Controls

    DDC Controller The main functions are: 1.11 TECHNICAL CHARACTERISTICS setup and control of one (or more) Robur units of the ab- ▶ sorption line (GAHP, GA, AY); Refer to the technical data of the individual GAHP/GA/AY mod- Data display and parameters setting.
  • Page 23: Group Positioning

    Transport and positioning GROUP POSITIONING In the event of indoor installation, the installation premises must comply with the applicable local standards. Do not install the aerothermal RT__ Links inside a Do not install in a room that has no aeration openings. room Please refer to the manuals of the individual units suitable for The aerothermal RT__ Links include devices equipped...
  • Page 24: Heating Engineer

    „ 2 antivibration joints on water fittings For detailed information, please refer to the Design Manual ▶ „ 2 pressure gauges and/or contact the Robur consultancy service. „ 2 isolation ball valves on the input water piping (r) Primary and secondary circuit „...
  • Page 25 Heating engineer Principle schemes Figure 3.1   Example of hydraulic system diagram for connection of n. 1 RTCR version with circulating pumps anti-vibration connections hydraulic separator (with air vent valve and drain valve) water filter (mesh min. 0.7 mm and max 1 mm) expansion tank of the secondary circuit shut-off valve circulating pump of the secondary circuit...
  • Page 26 Heating engineer Figure 3.3   Example of hydraulic system diagram for connection of n. 2 RTCR, version with circulating pumps anti-vibration connections hydraulic separator (with air vent valve and drain valve) water filter (mesh min. 0.7 mm and max 1 mm) expansion tank of the secondary circuit shut-off valve circulating pump of the secondary circuit expansion tank of the primary circuit...
  • Page 27: Antifreeze Function

    Heating engineer Figure 3.4   Example of hydraulic system diagram for connection of n. 2 RTCR version without circulating pumps anti-vibration connections 3 bar safety valve pressure gauge primary circuit circulating pump flow regulator valve hydraulic separator (with air vent valve and drain valve) water filter (mesh min.
  • Page 28: System Water Quality

    Heating engineer Glycol effects glycol depending on its %. The Table 3.1  p.  28 shows, indicatively, the effects of using a Table 3.1   Technical data for filling the hydraulic circuit Water-glycol mixture freezing temper- glycol % Percentage of increase in pressure drops Loss of efficiency of unit ature -3 °C...
  • Page 29: Fuel Gas Supply

    Heating engineer 4. Close the first vent valve and open the sectioning valve on and retighten). the delivery of the preassembled group. Install an anti-vibration connection between the preassem- ▶ 5. Close the sectioning valve on the return of the preassembled bled group and the gas supply piping.
  • Page 30: Flue Gas Condensate Discharge

    Heating engineer Flue gas exhaust connection opposite side as the condensate manifold is sloping to- wards the right side. The diameters (mm) of the connections, the residual head (Pa), the flow rate (kg/h), the temperature (°C) and other smoke dis- charge properties of the individual GAHP/AY units belonging to Flue gas condensate evacuation the group are indicated in their respective Manuals (attached).
  • Page 31: Electrical Installer

    Electrical installer ELECTRICAL INSTALLER WARNINGS „ To turn the preassembled group on and off, exclusively use the suitably provided control device (DDC or CCP/ CCI). General warnings Control of water circulation pump Read the warnings in Chapter III.1  p.  4 , providing im- portant information on regulations and on safety.
  • Page 32: Electrical Power Supply

    Electrical installer ELECTRICAL POWER SUPPLY How to connect the power supply To connect the multipole power cable (Figures 4.2  p.  32 and Electrical protection 4.3  p. 33 ): 1. Access the terminal blocks in the Electrical Panel of the A 4-pole (three-phase) disconnector GS Figure 4.2  p. 32 group (Paragraph 4.2 ...
  • Page 33: Set-Up And Control

    3x0.75 mm shielded cable may even be used. Table 4.1   CAN bus cables type CABLE NAME SIGNALS / COLOR MAX LENGTH Note Robur Ordering Code OCVO008 ROBUR NETBUS H= BLACK L= WHITE GND= BROWN 450 m Honeywell SDS 1620 BELDEN 3086A H= BLACK...
  • Page 34 Electrical installer + L and H terminals (two signal wires). one RT__ Link only) or open if the node is intermediate (case 4. Block the cable with the earthing terminal located behind of several RT__ Links in the same system) Figure 4.6  p. 36 . the DIN bar, ensuring a good electrical contact is made with 6.
  • Page 35 Electrical installer 1 RT__ Link + DDC/CCI configuration Figure 4.5   CAN-BUS connection for systems with one unit terminal node connection to CCI/DDC QEG group electrical panel CAN-BUS cable (not supplied - see table) CCI/DDC terminal node on last unit (prewired) last unit of appliance (with "ID00") Installation, use and maintenance manual –...
  • Page 36 Electrical installer 2 RT__ Links + DDC/CCI configuration Figure 4.6   Example of CAN network with 7 nodes (1 CCI/DDC + 2 appliances connected on a single hydraulic circuit). terminal node connection to CCI/DDC QEG2 second appliance group electrical panel CAN-BUS cable (not supplied - see table) CCI/DDC terminal node on last unit (prewired) CAN-BUS cable (not supplied - see table)
  • Page 37: Water Circulation Pumps

    Electrical installer WATER CIRCULATION PUMPS In RT__ Links without circulating pumps, electrical connections must be made (both for power supply and control) of the com- In RT__ Links with circulating pumps, the individual independ- mon water circulation pump of the primary water circuit, as ent circulating pumps (1 or 2 for each GAHP/GA/AY module) are shown in the diagrams Figures 4.7 ...
  • Page 38 Electrical installer Figure 4.8   Heat recovery exchanger: electrical connection of single- or three-phase circulator directly controlled by the group (configurations "with- out circulators") PM primary system water circulator (not supplied) appropriate fuse for protecting the circulating pump used circulator electrical panel (external) appropriate motor protection switch for the circulating pump used QEG preassembled group electrical panel NO relay for controlling the circulating pump (not supplied)
  • Page 39: First Start-Up

    First start-up by TAC „ gas valve open; „ preassembled group electrical power (main switch (GS) First start-up may exclusively be carried out by a Robur ON); TAC (Chapter 5  p. 39 ). „ DDC or CCI power supply (through transformer);...
  • Page 40: Messages On The Display

    Maintenance MESSAGES ON THE DISPLAY device (DDC or CCP/CCI). For instructions, see the control device Manual. 4 digit display on GAHP/GA/AY modules Modify the settings of circulators The S61/AY10 electronic boards on the GAHP/GA/AY modules, See Appendix 9.2  p. 49 . which are part of the group, are equipped with a 4-digit display, visible through the front panel of the respective appliances.
  • Page 41: Pre-Emptive Maintenance

    Maintenance Preassembled group electrical connection and investigate and resolve the problem before going to the disconnection operations next step. 2. (4' . ) Insert the remaining single-phase automatic break- A) Electrical connection ers of the units. The electrical connection must take place by doing the follow- B) Electrical disconnection ing sequence of operations: The electrical disconnection must take place by doing the fol-...
  • Page 42: Periods Of Inactivity

    Diagnostics PERIODS OF INACTIVITY in Paragraph 7.1  p. 40 . 3. Close the gas valve. How to reactivate the group after long periods of in- Avoid emptying the installation activity Emptying the system can cause damage to the hydraulic pipes, Prior to reactivating the group, the manager/maintainer for oxidation or corrosion.
  • Page 43: Appendices

    Appendices APPENDICES WIRING DIAGRAMS AND INTERNAL WIRINGS Figure 9.1   Diagram 1 N0-M2 F0-M2 power supply input terminals "ID05" unit magnetothermic breaker antifreeze thermostat Group electrical panel (QEG) switch disconnector CAN 3-pole connector for CAN-BUS network connection 2-pole 24 Vac connector for service uses CHR condensation heating resistance M1 transformer primary fuse "ID00"...
  • Page 44 Appendices Figure 9.2   Diagram 2 N0-M2 F0-M2 See the Figure 9.1  p. 43 legend. • the TAC must reset from the board, to progression, the enumeration of the IEP Interior of the electrical panel board ID of all units; CLOSED jumpers (from factory): keep CLOSED only if ID00 is a TERMINAL •...
  • Page 45 Appendices Figure 9.3   Diagram 3 N0-M2 F0-M2 See the Figure 9.2  p. 44 legend. PM Water pump < 700 W KPt Thermostat with setpoint calibration of DHW tank (not supplied) PMR Recovery exchanger pump KPs Thermostat calibrated at 35 °C with capillary tube in the lower part of the TER Power supply terminal block 230 Vac DHW tank (not supplied) [to be provided in the event the water flow rate NOTE if there are no ACF 60-00 HR units in the preassembled group, the T1-T2...
  • Page 46 Appendices Figure 9.4   Diagram 4 N0-M2 F0-M2 See the Figure 9.3  p. 45 legend.
  • Page 47 Appendices Figure 9.5   Diagram 5 N0-M2 F0-M2 See the Figure 9.3  p. 45 legend. Installation, use and maintenance manual – RT__ Link...
  • Page 48 Appendices Figure 9.6   Diagram 6 See the Figure 9.2  p. 44 legend. RSTN phases/neutral IEP Interior of the electrical panel...
  • Page 49: Circulating Pumps

    Appendices CIRCULATING PUMPS To access the circulating pumps, remove the plastic cover (for GAHP/GA, Figure 1.14  p. 19 ), or remove the front panel of the AY00- 120 units (Figure 1.15  p. 19 ). Table 9.1   Wilo Yonos pump block signalings Code Fault Cause Remedial action Insufficient mains voltage...
  • Page 52 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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