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Summary of Contents for Lochinvar GAHP-A HT STD
- 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 improving the quality of its products, Lochinvar reserves the right to modify the data and contents of this Manual without prior notice.
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Page 3: Table Of Contents
INDEX OF CONTENTS I INTRODUCTION �����������������������������������������������4 Fuel gas supply ..............22 3.10 Combustion products exhaust ........23 II SYMBOLS AND DEFINITIONS �������������������������4 3.11 Flue gas condensate discharge ........24 II.1 Key to symbols ..............4 3.12 Defrosting water drainage ..........24 II.2 Terms and definitions ............4 4 ELECTRICAL INSTALLER �������������������������������24... -
Page 4: I Introduction
II SYMBOLS AND DEFINITIONS II�1 KEY TO SYMBOLS CCI Controller (Comfort Controller Interface) = optional adjust- ment device Lochinvar which lets you manage up to three mod- ulating heat only GAHP units (A, WS, GS). CCP Controller (Comfort Control Panel) = adjustment device... - Page 5 III Warnings or damaged, malfunctioning, disabling or bypassing sealed circuit. The solution is harmful for health if it is control and safety devices. ingested, inhaled or comes in contact with the skin. In case of danger, request intervention by skilled In the event of coolant leak keep away and discon- ▶...
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Page 6: Conformity
1 Features and technical data In the event of failure Furthermore, they comply with the requirements of the follow- ing standards: Operations on internal components and repairs may UNI EN 677 Specific requirements for condensing boilers exclusively be carried out by a TAC, only using original ▶... -
Page 7: Dimensions
1 Features and technical data sealed combustion chamber (type C) suitable for outdoor installation water flowmeter; ▶ ▶ installations; generator limit thermostat, with manual reset; ▶ metal mesh radiant burner equipped with ignition and flame flue gas temperature thermostat, with manual reset; ▶... - Page 8 1 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
1 Features and technical data 1�3 COMPONENTS Figure 1�4 – Internal components - front view LEGEND 1. Fan (S1 version) 2. Flue gas tapping point 3. Gas valve 4. Combustion air inlet 5. Blower 6. Ignition transformer 7. Tmix Probe 8. - Page 10 1 Features and technical data Figure 1�5 – Internal components - left side view LEGEND 1. Flue gas thermostat reset 2. Flue gas thermostat sensor 3. Ø 80mm flue gas drain 4. Generator fin temperature sensor 5.
- Page 11 1 Features and technical data Figure 1�6 – Internal components - right side view LEGEND 1. TG Probe 2. Safety valve 3. Delivery pipe flowmeter 4. Delivery temperature probe 5. Limit thermostat 6.
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Page 12: Electrical Wiring Diagram
1 Features and technical data 1�4 ELECTRICAL WIRING DIAGRAM Figure 1�7 – Wiring diagram of the appliance with low consumption fan (S1) LEGEND SCH1 S61 circuit board Gas valve ON indicator lamp THMC Hot water delivery temperature sensor SCH2 W10 circuit board Gas solenoid valve TMIX Combustion air temperature sensor... -
Page 13: Electronic Boards
1 Features and technical data Figure 1�8 – Wiring diagram of the appliance with standard fan LEGEND SCH1 S61 circuit board Gas solenoid valve TMIX Combustion air temperature sensor SCH2 W10 circuit board Manual fumes thermostat Ambient air temperature sensor SCH3 Mod10 circuit board Generator limit thermostat... - Page 14 1 Features and technical data Figure 1�9 – Electronic board S61 LEGEND SCH1 Electronic board S61 Jumper CAN BUS Communication port with board SCH3 Electronic board Mod10 (see specific Jumper N.O. contact Mod10 picture for more details) Board connector W10 (on Mod10) SRT1 Oil hydraulic pump rotation sensor A1, A2...
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Page 15: Operation Mode
1 Features and technical data Figure 1�10 – Mod10 controller LEGEND HFLOW Not used CFLOW Condensation water sensor control SPI connector HPMP Primary circuit hot water pump control output (0-10 V) 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 connection W10... -
Page 16: Controls
NO contact. This system only provides elementary The main functions are: control (on/off, with fixed set-point temperature), hence without adjustment and control of one (or more) Lochinvar units of ▶ the important functions of systems (1) and (2). It is advisable to the absorption line (GAHP, GA, AY);... - Page 17 1 Features and technical data GAHP-A HT STD GAHP-A HT S1 nominal 0,84 (5) 0,77 (5) Electrical power absorption minimum 0,50 (5) Degree of protection INSTALLATION DATA methane G20 (nominal) m3/h 2,72 (3) methane G20 (min) m3/h 1,34 G25 (nominal)
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Page 18: Transport And Positioning
2 Transport and positioning Table 1�2 – PED data GAHP-A HT STD GAHP-A HT S1 PED data Generator 18,6 Leveling chamber 11,5 Evaporator COMPONENTS UNDER PRESSURE Cooling volume transformer Cooling absorber solution Solution pump TEST PRESSURE (IN AIR) bar g... -
Page 19: Appliance Positioning
2 Transport and positioning Figure 2�1 – Instruction for lifting In the event of handling with forklift or pallet truck, It must be installed outside buildings, in an area of natural air ▶ comply with the handling instructions shown on the circulation, outside the dripping path of drainpipes or simi- packing. -
Page 20: Minimum Clearance Distances
3 Heating engineer 2�4 MINIMUM CLEARANCE DISTANCES Clearances around the appliance The minimum clearance distances shown in Figure 2.2 p. 20 (bar any stricter regulations) are required for safety, operation Distances from combustible or flammable materials and maintenance. Keep the appliance away from combustible or flammable ▶... -
Page 21: Installation
3 Heating engineer 3�2 INSTALLATION B (= in) 1"1/4 F - WATER INPUT (r = return from the system). ▶ Hydraulic pipes, materials and features Primary and secondary circuit Use pipes for heating/cooling systems, protected from ▶ In many cases it is advisable to divide the hydraulic system ▶... -
Page 22: System Water Quality
3 Heating engineer With high glycol percentage (> 20…30%) The manufacturer disclaims any liability for any damage caused by improper glycol use. If the glycol percentage is ≥30% (for ethylene glycol) or Always check product suitability and its expiry date ≥20% (for propylene glycol) the TAC must be alerted be- ▶... -
Page 23: Combustion Products Exhaust
3 Heating engineer Gas pipes sizing Supply gas pressure The gas pipes must not cause excessive load losses and, conse- The appliance's gas supply pressure, both static and dynamic, quently, insufficient gas pressure for the appliance. must comply with Table 3.3 p. 23, with tolerance ± 15%. Table 3�3 –... -
Page 24: Flue Gas Condensate Discharge
4 Electrical installer 1. Remove the front panel; The corrugated condensate discharge pipe must be con- ▶ nected to a suitable discharge manifold. 2. Fasten the collar (D) with its spacer to the left side panel of the appliance; The junction between the pipe and the manifold must re- ▶... -
Page 25: Electrical Systems
4 Electrical installer Installation must comply with applicable regulations in 7. Close the Electrical Panel.and fit the front panel back force, based on the installation Country and site, in mat- ters of safety, design, implementation and maintenance of electrical systems. Installation must also comply with the manufacturer's provisions. -
Page 26: Electrical Power Supply
4 Electrical installer Figure 4�1 – Electrical Panel GAHP-A LEGEND 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 ... -
Page 27: Set-Up And Control
4 Electrical installer 4�4 SET-UP AND CONTROL remotely control one or more Lochinvar appliances with the DDC or CCP/CCI control devices. It entails a certain number of serial nodes, distinguished in: Control systems, options (1) (2) (3) intermediate nodes, in variable number;... - Page 28 4 Electrical installer Figure 4�3 – Electrical wiring diagram LEGEND electronic board Common data Data signal LOW Data signal HIGH Jumper CAN-BUS in board Detail case "terminal node" (3 wires; J1=jumper "closed") Detail case "intermediate node" (6 wires; J1=jumper "open") Port can/connector Connection cable CAN BUS to electronic board: detail A case "terminal node", detail B case "intermediate node"...
- Page 29 4 Electrical installer Figure 4�4 – 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.
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Page 30: Water Circulation Pump
4 Electrical installer Figure 4�5 – Wiring diagram, external enable connection LEGEND Electronic board Common Heating enable terminal Components NOT SUPPLIED external enable Electrical connection to external operation enable 4�5 WATER CIRCULATION PUMP 4�5�1 Option (1) CONSTANT FLOW circulating pump It must be mandatorily controlled from the S61 electronic board. - Page 31 4 Electrical installer Figure 4�6 – Electrical wiring diagram LEGEND circuit board closed jumper N.O. CONTACT N.O voltage free contacts unit terminal block phase neutral Components NOT SUPPLIED water pump <700W Example of pump/appliance electrical connection with 230 Vac pump (with absorbed power of < 700 W), controlled directly by the appliance. 4�5�2 Option (2) VARIABLE FLOW circulating pump It must be mandatorily controlled from the Mod10 electronic board (built into the S61).
- Page 32 4 Electrical installer Figure 4�7 – 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 Wiring diagram for connection of Wilo variable rate pumps...
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Page 33: First Start
5 First start-up Figure 4�8 – 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 34: Normal Operation
6 Normal operation system installed in a workmanlike manner, according to na- appliance defects or faults caused during transport or instal- ▶ ▶ tional and local regulations. lation; gas smell; ▶ Abnormal or hazardous installation situations non-compliant mains gas pressure; ▶... -
Page 35: Electronic Adjustment On The Machine - Menus And Parameters Of The S61 Board
6 Normal operation (Table 8.1 p. 38). The instructions on the use of the S61 electronic board concern the firmware version 3�028. 6�4 ELECTRONIC ADJUSTMENT ON THE The appliance's electronic board (S61) MACHINE – MENUS AND PARAMETERS OF THE S61 BOARD Firmware Figure 6�1 –... -
Page 36: Modifying Settings
6 Normal operation How to raise/lower the water temperature set-point suitable hole in the Electrical Panel cover, operating safely away from live components. The water temperature set-point establishes the delivery tem- Always keep the key for future uses. perature to the system (water output from the appliance), or ▶... -
Page 37: Efficiency
7 Maintenance To perform the reset directly from the S61 board: 4. Exit menu 2 and the menu list, by selecting and pressing letter "E" twice, and go back to the normal 1. Access Menu 2 under Parameter "_20", to reset flame display of detected temperature data. -
Page 38: Scheduled Routine Maintenance
8 Diagnostics 7�3 SCHEDULED ROUTINE MAINTENANCE For scheduled routine maintenance, perform the operations ▶ in Table 7.2 p. 38, at least once every 2 years. Table 7�2 SCHEDULED MAINTENANCE OPERATIONS TO BE PERFORMED AT LEAST ONE EVERY TWO YEARS Check of the unit GAHP-A GAHP-GS/WS GAHP-AR... - Page 39 8 Diagnostics CODES DESCRIPTION Warning (u) Error (E) Reset may be performed from the DDC/CCI or from the S61 board Reset is automatic when the triggering condition (menu 2, parameter 21). GENERATOR TEMPERATURE HIGH ceases. If the code persists, shows up again or in case of doubt, contact the TAC.
- Page 40 8 Diagnostics CODES DESCRIPTION Warning (u) Error (E) Check configuration of other heat generators on the system. HIGH HOT INLET WATER Reset is automatic and occurs if the generating TEMPERATURE condition ceases with circulating pump on or 20 minutes after the code is generated with circulat- ing pump off.
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Page 41: Appendices
Appendices APPENDICES 1 DECLARATION OF CONFORMITY Figure 1 EC – DECLARATION OF CONFORMITY Manufacturer : Robur S.p.A. Address : Via Parigi 4/6 City, Country : Verdellino/Zingonia 24040 (Bg), Italy This is to declare that the ROBUR Gas Absortion Heat Pump (GAHP) are in conformity with the following EC- Directives: Machinery Directive 2006/42/EC... -
Page 42: Product Fiche
Appendices 2 PRODUCT FICHE Figure 2 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 STD 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 43 Appendices Figure 3 Bivalent temperature TOL < °C For air-to-water heat pumps: °C Operation limit temperature designh Heating water operating limit WTOL °C Power consumption in modes other than active mode Supplementary heater Off mode 0,000 Rated heat output Psup 0,021 monovalent Type of energy input...
- Page 44 Appendices Figure 4 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 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 45 Appendices Figure 5 Bivalent temperature TOL < °C For air-to-water heat pumps: °C Operation limit temperature designh Heating water operating limit WTOL °C Power consumption in modes other than active mode Supplementary heater Off mode 0,000 Rated heat output Psup 0,021 monovalent Type of energy input...
- Page 46 Appendices...
- Page 48 Lochinvar Ltd 7 Lombard Way, The MXL Centre, Banbury, Oxon OX16 4TJ T +44 (0) 1295 269981 F +44 (0) 1295 271640 sales@lochinvar.ltd.uk www.lochinvar.ltd.uk...
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