Summary of Contents for ROBUA GAHP A Series
- Page 1 Installation, Use and Maintenance Manual GAHP A Air-Water gas absorption heat pump powered by gas and renewable energies...
- Page 2 Revision: X Code: D-LBR548 This Installation, use and maintenance manual has been drawn up and printed by Robur S.p.A.; whole or partial reproduction of this Installation, use and maintenance manual is prohibited. The original is filed at Robur S.p.A. Any use of this Installation, use and maintenance manual other than for personal consultation must be previously authorised by Robur S.p.A. The rights of those who have legitimately filed the registered trademarks contained within this publication are not affected.
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Page 3: Table Of Contents
INDEX OF CONTENTS Introduction ������������������������������������������������ p� 4 System water quality .......... p. 21 Installation filling ............ p. 22 Recipients ................. p. 4 Fuel gas supply ............. p. 22 Control device .............. p. 4 3.10 Combustion products exhaust ....... p. 23 II Symbols and definitions ���������������������������� p� 4 3.11 Flue gas condensate discharge ....... -
Page 4: Introduction
Introduction INTRODUCTION Manual end user, for appropriate and safe use of the appliance; ▶ qualified installer, for correct appliance installation; ▶ planner, for specific information on the appliance. This Manual is an integral part of the GAHP A unit and ▶... - Page 5 Warnings „ Do not entrust children, persons with physical, senso- „ For electrical connections exclusively use compliant ry or mental disabilities or persons with poor knowl- components and according to the specifications pro- edge and experience with use of the appliance. vided by the manufacturer.
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Page 6: Iii.2 Conformity
Warnings „ Maintenance must be performed according to the In particular, the warranty on the appliance may be ren- manufacturer's instructions (see Chapter 7 p. 33 ) dered void by the following conditions: and in compliance with current regulations. „... -
Page 7: Features And Technical Data
Features and technical data FEATURES AND TECHNICAL DATA FEATURES standard or S1 silenced fan (reduction of electrical consump- ▶ tion and reduction of sound emission). Operation Control and safety devices Based on the thermodynamic water-ammonia absorption cycle S61 electronic board with microprocessor, LCD display and ▶... - Page 8 Features and technical data Figure 1�2 Size (Standard ventilation) Figure 1�3 Dimensions (low consumption silenced fan)
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Page 9: Components
Features and technical data COMPONENTS Figure 1�4 Internal components - front view Fan (S1 version) Tapping point for flue analisys Gas valve Combustion air hose Combustion blower Ignition transformer Tmix air-gas mixture temperature probe Oil pump Water delivery fitting: “G 1”¼ F Water return fitting: “G 1”¼... - Page 10 Features and technical data Figure 1�5 Internal components - left side view Manual reset of the flue exhaust thermostat Sensing element of the flue exhaust thermostat DN80 flue exhaust connection Generator fin temperature sensor Flame sensing / ignition electrodes Condensate level sensor...
- Page 11 Features and technical data Figure 1�6 Internal components - right side view TG generator temperature probe Safety valve Delivery pipe flowmeter Flow temperature probe Limit thermostat Defrosting valve Return temperature probe Teva evaporator temperature probe Installation, use and maintenance manual –...
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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) TMIX Combustion air temperature SCH1 Controller S61 Gas solenoid valve SCH2 W10 circuit board Manual flue gas thermostat sensor SCH3 Mod10 circuit board Generator limit thermostat Ambient air temperature sensor Appliance power terminal block... -
Page 13: Electronic Boards
Features and technical data Figure 1�8 Wiring diagram of the appliance with standard fan SCH1 Controller S61 Gas solenoid valve THMC Hot water flow temperature SCH2 W10 circuit board Manual flue gas thermostat probe SCH3 Mod10 circuit board Generator limit thermostat TMIX Combustion air temperature Flowmeter... - Page 14 Features and technical data Figure 1�9 Electronic board S61 SCH1 Controller S61 CAN BUS Jumper PUMP 230V (L, N) Oil pump supply SCH3 Mod10 electronic board (see Jumper N.O. contact output specific figure for further details) W10 board connector (on Communication port with Mod10 A1, A2 Auxiliary inputs Mod10)
- Page 15 Features and technical data Figure 1�10 Mod10 controller HFLOW Not used CFLOW Condensation water sensor control SPI connector HPMP Primary circuit hot water pump control output (0-10 CPMP Low consumption fan control output (0-10V) NC1-C1 Status indication of locking warnig/error Blower control W10 auxiliary controller connector W10 cable shielding...
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Page 16: Operation Mode
Features and technical data OPERATION MODE parameter figures display and setting; ▶ hourly programming; ▶ climate curve control; ▶ ON/OFF or modulating operation diagnostics; ▶ The GAHP unit may work in two modes: reset errors; ▶ mode (1) ON/OFF, i.e. On (at full power) or Off, with circulat- possibility to interface with a BMS;... - Page 17 Features and technical data GAHP A HT GAHP A HT S1 Standard Thermal differential nominal °C nominal 3000 Heating water flow maximum 4000 minimum 1400 Pressure drop heating mode nominal water pressure (A7W50) 0.43 (2) maximum °C Ambient air temperature (dry bulb) minimum °C -15 (3)
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Page 18: Transport And Positioning
Transport and positioning Table 1�2 PED data GAHP A HT S1 GAHP A HT Standard PED data generator 18,6 18,6 leveling chamber 11,5 11,5 evaporator Components under pression cooling volume transformer cooling absorber solution solution pump Test pressure (in air) bar g Maximum pressure of the cooling circuit bar g Filling ratio... -
Page 19: Minimum Clearance Distances
Heating engineer Where to install the appliance Figure 2�2 Clearances The appliance may be installed at ground level, on a terrace ▶ or on a roof, compatibly with its dimensions and weight. It must be installed outside buildings, in an area of natural air ▶... -
Page 20: Installation
Heating engineer INSTALLATION A (= out) 1"1/4 F - WATER OUTPUT (m = delivery to the sys- ▶ tem); B (= in) 1"1/4 F - WATER INPUT (r = return from the system). ▶ Primary and secondary circuit In many cases it is advisable to divide the hydraulic system Hydraulic pipes, materials and features ▶... -
Page 21: Anti-Icing Function
Heating engineer ANTI-ICING FUNCTION Do not use car-grade anti-icing liquid (without inhibitors), ▶ nor zinc-coated piping and fittings (incompatible with gly- col). Active anti-icing self-protection „ Glycol modifies the physical properties of water (den- The appliance is equipped with an active antifreeze self-protec- sity, viscosity, specific heat...). -
Page 22: Installation Filling
Heating engineer FUEL GAS SUPPLY Ensure there are no leaks in the installation. ▶ Periodically check the chemical-physical parameters of the ▶ water, particularly in case of automatic topping up. Gas connection 3/4" F Chemical conditioning and washing ▶ on the right, at the bottom, connection plate (Figure 1.1 ... -
Page 23: Combustion Products Exhaust
Heating engineer Vertical pipes and condensate 3� Fit the terminal/pipe assembly (B) to the elbow (A). 4� Vertical gas pipes must be fitted with siphon and discharge Fit the rain cover (C) onto the elbow (A); ▶ of the condensate that may form inside the pipe. 5�... -
Page 24: Defrosting Water Drainage
Electrical installer 3.12 DEFROSTING WATER DRAINAGE Dilute, if possible, with domestic waste water (e.g. bath- ▶ rooms, washing machines, dish washers...), basic and neu- tralising. Defrosting Figure 3�3 Condensate drain position In winter, frost may form on the finned coil and the appli- ance performs defrosting cycles. -
Page 25: Electrical Power Supply
Electrical installer Figure 4�1 GAHP A electrical panel CAN-BUS cable gland signal cable gland 0...10 V pump Wilo Stratos Para electronic boards S61+Mod10+W10 terminal boxes transformer 230/23 V AC flame control unit circulation pump power supply and control cable gland GAHP power supply cable gland Terminals: TER terminal box L-(PE)-N... -
Page 26: Set-Up And Control
Electrical installer 2� Connect the three lead-in wires to the terminal (TER) remotely control one or more Robur appliances with the DDC or in the electrical panel on the machine. CCP/CCI control devices. It entails a certain number of serial nodes, distinguished in: 3�... -
Page 27: Water Circulation Pump
Electrical installer Figure 4�4 Connexion câble CAN BUS for plants with one unit Direct Digital Control electronic board S61 Jumper CAN-BUS in board S61 Jumper CAN-BUS in board DDC terminal node connection (3 wires; J1 and J21 = "closed") H,L,GND data signal wires (ref. cables table) External request Figure 4�5 ... - Page 28 Electrical installer The diagram in Figure 4.6 p. 28 is for pumps < 700 W. For How to connect the CONSTANT FLOW circulating pumps > 700 W it is required to add a control relay and arrange pump Jumper J10 OPEN. Access the Electrical Board of the appliance according to the Procedure 4.2 ...
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Page 29: First Start-Up
First start-up Figure 4�7 Wiring diagram for connection of Wilo Stratos Para variable rate pump Two-position 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 Figure 4�8 ... -
Page 30: Preliminary Checks
Normal operation PRELIMINARY CHECKS These situations may be: appliance installed inside a room; ▶ failed compliance with minimum clearances; ▶ Preliminary checks for First start-up insufficient distance from combustible or flammable mate- ▶ Upon completing installation, before contacting the TAC the in- rials;... -
Page 31: Messages On The Display
Normal operation MESSAGES ON THE DISPLAY Knob One of the following actions may be done with the S61 board knob (Detail B in Figure 6.1 p. 31 ): 4 digit display Enter the menu list (by pressing the first time); ▶ The S61 board of the appliance (Paragraph 1.5 ... -
Page 32: Modifying Settings
Normal operation 4� Press the knob once to display the menus: the first 4� Exit menu 3, and from the menu list, by selecting menu is displayed, "0." (= menu 0). and pressing letter "E" twice, and go back to the nor- mal display of detected temperature data. -
Page 33: Maintenance
Maintenance Adjust the maximum water temperature to the actual sys- Program appliance activation for actual periods of use; ▶ ▶ tem requirements; Keep water and air filters on plumbing and ventilation sys- ▶ Reduce repeated switch-ons to the minimum (low loads); tems clean. -
Page 34: Periods Of Inactivity
Diagnostics PERIODS OF INACTIVITY 4� If necessary, add water with glycol (if the appliance is disconnected from the power and gas mains, the active anti-icing protection is missing, Paragraph Avoid emptying the installation 3.5 p. 21 ). Emptying the system may cause damage due to corro- How to reactivate the appliance after long periods of sion of the water pipes. - Page 35 Diagnostics CODES DESCRIPTION Warning (u) Error (E) Reset may be performed from the DDC/CCI or from the S61 FAULTY HOT OUTLET WATER board (menu 2, parameter 21). TEMPERATURE PROBE If the code persists, shows up again or in case of doubt, contact the TAC.
- Page 36 Diagnostics CODES DESCRIPTION Warning (u) Error (E) Non-blocking Warning (informative code). Defrosting valve fault The code is reset automatically when the triggering condition ceases. HIGH HOT OUTLET WATER Reset is automatic when the triggering condi- TEMPERATURE tion ceases. Non-blocking Warning (informative code). DEFROST FUNCTION ACTIVATED The code clears automatically when anti-icing function execution ends.
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Page 37: Appendices
Appendices APPENDICES PRODUCT FICHE Figure Table 8 COMMISSION DELEGATED REGULATION (EU) No 811/2013 Technical parameters for heat pump space heaters and heat pump combination heaters Model(s): GAHP A HT Air-to-water heat pump: Water-to-water heat pump: Brine-to-water heat pump: Low-temperature heat pump: Equipped with a supplementary heater: Heat pump combination heater: Parameters shall be declared for medium-temperature application. - Page 38 Appendices Figure TOL < For air-to-water heat pumps: Bivalent temperature °C °C Operation limit temperature designh Heating water operating limit WTOL °C temperature Power consumption in modes other than active mode Supplementary heater Rated heat output Psup Off mode 0,000 Thermostat-off mode 0,021 Standby mode...
- Page 39 Appendices Figure Table 8 COMMISSION DELEGATED REGULATION (EU) No 811/2013 Technical parameters for heat pump space heaters and heat pump combination heaters Model(s): GAHP A HT S1 Air-to-water heat pump: Water-to-water heat pump: Brine-to-water heat pump: Low-temperature heat pump: Equipped with a supplementary heater: Heat pump combination heater: Parameters shall be declared for medium-temperature application.
- Page 40 Appendices Figure TOL < For air-to-water heat pumps: Bivalent temperature °C °C Operation limit temperature designh Heating water operating limit WTOL °C temperature Power consumption in modes other than active mode Supplementary heater Rated heat output Psup Off mode 0,000 Thermostat-off mode 0,021 Standby mode...
- 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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