Lochinvar LCGHP User Manual
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Lochinvar LCGHP User Manual

Lochinvar LCGHP User Manual

Air-water gas absorption heat pump
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LCGHP/LSGHP
Air-Water gas absorption heat pump
powered by gas and renewable energies

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Summary of Contents for Lochinvar LCGHP

  • Page 1 Installation, user and maintenance manual LCGHP/LSGHP 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 continuously improving the quality of its products, Lochinvar reserves the right to modify the data and contents of this manual without prior notice.

  • Page 3: Table Of Contents

    7 INITIAL ACTIVATION AND MAINTENANCE ���������������������������������������������������������������������������������������� 54 PROCEDURE FOR FIRST START UP ..................................54 MAINTENANCE .......................................... 57 CHANGE OF GAS TYPE......................................58 8 OPERATING CODES/TROUBLESHOOTING ����������������������������������������������������������������������������������������� 60 OVERVIEW AND OPERATING CODES/TROUBLESHOOTING ........................60 DECLARATION OF CONFORMITY ������������������������������������������������������������������������������������������������������������� 63 Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 4: Preface

    DDC. In this case, refer to the manual supplied with it. Definitions, terms and icons APPLIANCE: this term refers to the Air-Water gas absorption heat pump "LCGHP/LSGHP". CCP: "Comfort Control Panel".

  • Page 5: Safety Warnings

    Make sure the appliance cannot be started up inadvertently. ▶ The electrical safety of the appliance is ensured only when it is correctly connected to an efficient grounding system, com- pilant with current safety regulations. Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 6: Warranty Terms

    2 SAFETY WARNINGS DAMAGE DUE TO AGGRESSIVE SUBSTANCES IN THE AIR SUPPLY Hydrocarbons containing chlorine and fluorine compounds, will increase corrosion. Make sure the air supply is free of aggressive substances. ACID CONDENSATE Drain out the condensate produced during combustion as indicated in paragraph 5.5 p. 24. EXPLOSIVE/FLAMMABLE MATERIALS HAZARD Do not use or store flammable materials (paper, solvents, paint, etc.) in the vicinity of the appliance.

  • Page 7: Overview And Technical Features

    This manual is an integral and essential part of the product and must be delivered to the user together with the appliance. Conformity to CE standards The absorption heat pumps of the LCGHP/LSGHP series are certified as conforming to standard EN 12309-1 and -2 and comply with the essential requirements of the following Directives: Gas Directive 90/396/EEC and subsequent modifications and additions.

  • Page 8: Notes On Operation Of The Appliance

    ) to produce hot water, using atmospheric air as renewable energy source. The water/ammonia thermodynamic cycle used in the unit LCGHP/LSGHP is realized in a hermitically sealed circuit, directly verified by the manufacturer to ensure the perfect tightness of all joints, thus making refrigerant top-ups completely unnecessary.

  • Page 9: Technical Manufacturing Characteristics

    Ionization flame control box. ▶ Double shutter electric gas valve. ▶ Condensate discharge sensor. ▶ 3�4 TECHNICAL DATA Table 3�1 – Technical data LCGHP-42-HT / LSGHP-42HT LCGHP-42LT LSGHP-42LT OPERATION WHEN HEATING G.U.E. gas usage efficiency 151 (1) OPERATING POINT A7W50...
  • Page 10 Maximum sound pressure values in free field, with directionality factor 2, obtained from sound power level in compliance with norm EN ISO 9614. Maximum sound pressure values measured in free field, direction factor 2, according to EN 3744. Table 3�2 – Technical data LCGHP-40-HT / LSGHP-40HT LCGHP-40HT LSGHP-40HT OPERATION WHEN HEATING G.U.E.
  • Page 11 Maximum sound pressure values in free field, with directionality factor 2, obtained from sound power level in compliance with norm EN ISO 9614. Maximum sound pressure values measured in free field, direction factor 2, according to EN 3744. Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 12: Dimensions And Service Panel

    3 OVERVIEW AND TECHNICAL FEATURES Table 3�3 – PED data LCGHP-40HT LCGHP-42LT 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 MAXIMUM PRESSURE OF THE COOLING CIRCUIT...
  • Page 13 3 OVERVIEW AND TECHNICAL FEATURES Figure 3�2 – Dimensions LCGHP (low consumption ventilation) Front and side views (dimensions in mm). Figure 3�3 – Service plate LEGEND  Gas fitting Ø ¾” F Inlet water fitting Ø 1¼” F Outlet water fitting Ø 1¼” F Hydraulic/gas unions detail Installation, user and maintenance manual –...

  • Page 14: Normal Operation

    4 NORMAL OPERATION 4 NORMAL OPERATION In this section you will find all the indications necessary for the activation, regulation and control of operation of the appliance de- pending on the type of installation and control setup. TYPE A: controlled by CCP (see Figure 6.3 p. 31, detail CCP). ▶...

  • Page 15: On-Board Electronics

    The Mod10 controller (see detail D in Figure 4.1 p. 15) is used for combustion modulation and variable rate pump control. Figure 4�1 – On-board controller LEGEND  4 digit display  Knob  CAN port Mod10 controller   S61 + Mod10 Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 16 4 NORMAL OPERATION Description of menu of S61 controller The parameters and settings of the appliance are grouped in the menus shown on the controller’s display: Table 4�1 – Menu of electronic board MENU MENU DESCRIPTION THE DISPLAY SHOWS Menu 0 VIEW DATA (TEMPERATURE, VOLTAGE, PUMP SPEED, ECC...) Menu 1 VIEW ALL PARAMETERS...

  • Page 17: Reset Operations And Manual Defrosting

    Press the knob to display the flashing reset request: "rEr1". Press the knob again to perform a board error reset. The reset request stops flashing, and the again display shows "2. 21". The reset operation has been performed. Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 18: Operating Settings

    4 NORMAL OPERATION To quit the menu, turn the knob clockwise until the "2. E" is displayed. Now press the knob to return to menu selection: "2.". To exit the menu selection and return to the normal visualisation of the parameters of the appliance, turn the knob clockwise until "E"...
  • Page 19 In case of precence of glycol, Lochinvar advices to use inhibited glycol.

  • Page 20: Hydraulic Installation

    5 HYDRAULIC INSTALLATION 5 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 p. 7, providing important recommendations about safety and references to current regulations. 5�1 GENERAL INSTALLATION PRINCIPLES Prior to installation, carry out careful internal cleaning of all pipes and every other component to be used both on the hy- draulic system and on the fuel supply, in order to remove any debris that may compromise the operation of the appliance.
  • Page 21 Moreover, it is advisable to use flexible connections (anti-vibration joints) between the appliance and the hydraulic and gas supply pipes. Avoid placing the appliance on the roof directly above locals requiring quietness. Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 22: Hydraulic Connections

    5 HYDRAULIC INSTALLATION SUPPORTS AND LEVELLING The appliance must be correctly levelled by placing a spirit level on the upper part. If necessary, level the appliance with metal shimming; do not use wooden spacers as these deteriorate quickly. CLEARANCES AND WARNINGS Position the appliance so as to maintain minimum clearances from combustible surfaces, walls or other appliances, as illustrated in Figure 5.2 p. 22.
  • Page 23 The presence of free chlorine in the water, in particular, can jeopardize parts of the installation and Lochinvar units. There- fore, please make sure that free chlorine content and total hardness are compliant with the allowable ranges reported in Table 5.1 p. 23.

  • Page 24: Gas Supply

    The operations necessary for the First Activation or Regulation of the appliance must be carried out exclusively by an author- ised Lochinvar Technical Assistance Centre (TAC). These operations are described in Section 7 p. 54). The products' guarantee is void if initial activation is not carried out by a Lochinvar TAC. 5�4 GAS SUPPLY The installation of gas supply pipes must be compliant with current regulations and norms.

  • Page 25: Filling Of Hydraulic Circuit

    After having completed all hydraulic, gas and electrical connections, the installer can proceed filling the hydraulic circuit, observing the following steps: You will need: the appliance connected hydraulically and electrically. Activate the automatic air purging valves of the plant and open all thermostatic valves. Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 26: Exhaust Flue Gas

    5 HYDRAULIC INSTALLATION Fill the hydraulic circuit with clean water and add, if necessary, the proper quantity of monoethylene glycol according the minimum winter temperature in the installation site (see table 5.3 p. 26). Check the filter on the return pipe for impurities; clean it if necessary. Bring the plant to the correct pressure, making sure that the water pressure is not less than 1 bar and not over 2 bar, and run the circu lation pump for at least 30 minutes.

  • Page 27: Programming Of Hydraulic Parameters

    Water differential, parameter 162: this parameter represents an interval in degrees that, when added to the set-point, defines the ▶ temperature at which the appliance is reactivated. This parameter is used only if the power modulation is NOT active (parameter 181). Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 28 5 HYDRAULIC INSTALLATION The appliance functions by heating the water until it reaches the set-point temperature. At this point, if the power modulation is not active (parameter 181), it switches off. The temperature of the water goes down again until it reaches the temperature corresponding to "set-point + differential";...

  • Page 29: Electrical Installation

    Installation that is incorrect or that does not comply with current legislation may cause damage to people, animals or things; Lochinvar is not responsible for any damage caused by installation that is incorrect or that does not comply with current legislation.
  • Page 30 6 ELECTRICAL INSTALLATION CODE DESCRIPTION JP10 6-pole flame controller connector JP12 Fumes sensor or generator fin sensor input JTAG S61 controller programming connector MAIN 230V (L, N) S61 controller power 230 V AC N.O. contact Pump contact, N.O. P7 (R, W, Y, o) Consent inputs P8 (GND, L, H) CAN BUS connector...
  • Page 31 Radio room unit RVS61 System controller and set-point ASV71 Antenna Comfort Control Interface AVS13 Transmitter Programmable Logic Control QAC34 External temperature probe AVS75 Expansion Central communications for remote control Optional components to predict Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 32 6 ELECTRICAL INSTALLATION Figure 6�4 – CCI/DDC...

  • Page 33: Electrical Diagram Of The Appliance

    (not present on silenced units) Terminal block Ignition electrodes Condensate hose heating element REED Hydraulic pump rotation sensor Flame sensor THRC Hot water return temperature sensor Gas valve ON indicator lamp THMC Hot water delivery temperature sensor Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 34: How To Connect The Appliance Electrically

    6 ELECTRICAL INSTALLATION Figure 6�6 – Wiring diagram of the appliance with low consumption fan (LCGHP) LEGEND SCH1 Controller S61 Gas valve ON indicator lamp THMC Hot water delivery temperature sensor SCH2 W10 circuit board Gas solenoid valve TMIX Combustion air temperature sensor...

  • Page 35: Type A (Comfort Control Panel)

    D and the CCP (A) are terminal nodes, while appliances C and B are intermediate nodes as they are connected to 2 elements. One CCP can control up to 3 appliances of the same type. Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 36 6 ELECTRICAL INSTALLATION Figure 6�8 – Example of CAN BUS LEGEND Controller Terminal nodes B-C-D Appliance Intermediate nodes Terminal nodes and intermediate nodes What is the CAN BUS cable The cable to be used must be suitable for CAN BUS applications. The following table gives details of some types of CAN BUS cables, grouped according to the maximum distance covered by each single type.
  • Page 37 If the appliance is an intermediate node on the network (i.e. 6 wires are inserted in the orange connector on the board); set the ▶ jumpers as shown in detail "B" of Figure 6.10 p. 38: Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 38 6 ELECTRICAL INSTALLATION Figure 6�10 – 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 39 Jumpers CAN-BUS on CCI board H,L,GND Data signal wires Jumpers J21 closed The following wiring diagrams show the connection of the CCI to 1 appliance (Figure 6.13  p.  40) and 3 appliances (Figure 6.14 p. 41) respectively. Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 40 6 ELECTRICAL INSTALLATION Figure 6�13 – Connection of CCI to 1 appliance LEGEND S61 controller Comfort Control Interface Connection of CCI to 1 appliance...
  • Page 41 6 ELECTRICAL INSTALLATION Figure 6�14 – Connection of CCI to 3 appliances LEGEND S61 controller Comfort Control Interface Connection of CCI to 3 appliances Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 42 6 ELECTRICAL INSTALLATION How to connect the Comfort Control Panel You will need: the appliance disconnected from the electricity supply The Comfort Control Panel’s power cord must be type tipo FG7 3Gx2.5mm . the power supply is 230V AC 1N 50Hz. Cut a suitable length of cable.
  • Page 43 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 Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 44: Type B (Ddc)

    6 ELECTRICAL INSTALLATION 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 45 DDC itself, making sure it is correctly inserted. Use the rear cover bolts located near the CAN BUS socket to secure the 4 mm eyelet (or 2 eyelets) (detail D, Figure 6.11 p. 39). The cable should be secured against pulling out. Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 46 6 ELECTRICAL INSTALLATION Figure 6�17 – detail wires and jumpers J21 - terminal/intermediate node CCI/DDC LEGEND CCI/DDC detail case "intermediate node" (6 wires; J21=jumper "open") Jumper CAN-BUS in CCI/DDC board H,L,GND data signal wires detail case "terminal node" (3 wires; J21=jumper "closed") Detail terminal and intermediate node: jumpers position J21: "closed"...
  • Page 47 - (230/24 Vac 50/60 Hz) CCI/DDC electric supply from external transformer. The following wiring diagrams show the connection of the DDC to 1 appliance (Figure 6.19  p.  48) and 2 appliances (Figure 6.20 p. 49) respectively. Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 48 6 ELECTRICAL INSTALLATION 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 49 If the power of the pump is equal to or higher than 700 W, make the connection as shown in Figure 6.22 p. 50 using a relay. In ▶ this case the jumper J10 (located at the bottom left of the electronic board, above the "NO Contact" contacts) must be OPEN, as shown in detail A. Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 50 6 ELECTRICAL INSTALLATION Figure 6�21 – 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. Figure 6�22 –...

  • Page 51: Type C (Consent Switch)

    Before making the electrical connections, make sure that work is not carried out on live elements. General indications Check that the power supply voltage is 230 V 1N - 50 Hz power. ▶ Make the electrical connections as given in the following wiring diagrams. ▶ Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 52: How To Reset The Flame Controller From Remote

    6 ELECTRICAL INSTALLATION Make 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 pulled away if the mains cable should accidentally be pulled, and will thus guarantee the ground connection. Electrical safety is ensured only when the appliance is correctly connected to an efficient grounding system, realized according to current safety regulations.
  • Page 53 6 ELECTRICAL INSTALLATION Figure 6�25 – Button connection for flame controller reset Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 54: Initial Activation And Maintenance

    7�1 PROCEDURE FOR FIRST START UP The entire procedure for the initial activation of the appliance must only carried out by an authorised Lochinvar Technical Assistance Centre (TAC). The product's guarantee may be void if the procedure is not carried out by a Lochinvar TAC.
  • Page 55 Procedure for checking/setting-up the combustion parameters During the initial activation procedure, the combustion parameters must be checked and set ONLY by a Lochinvar 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 56 7 INITIAL ACTIVATION AND MAINTENANCE Figure 7�1 – Gas valve LEGEND Plug Key Torx TX40 screw adjustment CO2 gas pressure intake Gas valve Honeywell VK 4115V If the pressure measured by the pressure gage is not complying with the value reported in Table 5.2 p. 24 (with a tolerance of ±15%), it is NOT possible to switch the appliance on! Proceed with the regulation/verification of the combustion parameters as stated in the next paragraph.

  • Page 57: 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 Lochinvar. Any operation that regards internal components of units of the appliance must be carried out by an authorized Lochinvar Technical Assistance Centre (TAC), according to the instructions supplied by the manufacturer.

  • Page 58: Change Of Gas Type

    7�3 CHANGE OF GAS TYPE This operation must be carried out exclusively by an authorised Lochinvar Technical Assistance Centre (TAC). If the appliance is to be used with a type of gas other than that indicated on the the adhesive 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 p. 59):...
  • Page 59 7 INITIAL ACTIVATION AND MAINTENANCE 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 Installation, user and maintenance manual – LCGHP/LSGHP...

  • Page 60: Operating Codes/Troubleshooting

    8 OPERATING CODES/TROUBLESHOOTING 8 OPERATING CODES/TROUBLESHOOTING 8�1 OVERVIEW AND OPERATING CODES/TROUBLESHOOTING Table 8�1 – TABLE OF OPERATING CODES generated by the S61 electronic board (firmware version 3.026) CODES DESCRIPTION TRIP CONDITIONS RESET METHOD FAULT ON RESET CIRCUIT OF FLAME E 400 Fault on reset circuit of flame control unit.
  • Page 61 E 487 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Technical Assistance. E 488 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Technical Assistance. E 489 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Technical Assistance. Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 62 8 OPERATING CODES/TROUBLESHOOTING CODES DESCRIPTION TRIP CONDITIONS RESET METHOD Reset may be performed from the controller (or from the S61 board AMBIENT TEMPERATURE SENSOR Interruption or short circuit of ambient tempera- E 490 via menu 2, parameter 1). If the code persists or occurs again, DEFECTIVE ture sensor.

  • Page 63: Declaration Of Conformity

    Parigi 4/6 24040 Verdellino/Zingonia (BG) Italy T +39 035 888111 F +39 035 884165 capitale sociale € 2.028.000,00 i.v. iscritta al Registro Imprese di Bergamo n. 154968 codice fiscale/partita iva 00373210160 V.A.T. code IT 00373210160 società soggetta all’attività di direzione e coordinamento di Fin Robur S.a.p.A. di Benito Guerra & C. Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 64 DECLARATION OF CONFORMITY Figure 2 Dichiarazione di Conformita’ n°: Declaration of Conformity n°: Déclaration de conformité n°: Konformitätserklärung N°: Deklaracja zgodności n°: Verklaring van conformiteit n°: Zingonia, il 10/09/2014 Con la presente si dichiara che i circuiti a pressione: del Refrigeratore d’acqua a gas ad Assorbimento prodotto da ROBUR S.p.A., serie GA: ACF60-00 (standard e versioni speciali);...
  • Page 65 Robur Spa tecnologie avanzate per la climatizzazione advanced heating and cooling technologies www.robur.it robur@robur.it via Parigi 4/6 24040 Verdellino/Zingonia (Bg) Italy T +39 035 888111 F +39 035 884165 Installation, user and maintenance manual – LCGHP/LSGHP...
  • Page 66 DECLARATION OF CONFORMITY Figure 4 Hiermit möchten wir klarstellen , daß diese Behälter mit einem Sicherheitsventil (Eichungsdruck 32 bar Kategorie IV, Module B+D) entsprechend europäischer Druckgeräterichtlinie 97/23/EG ausgerüstet, und sie wurden durch eine dafür zuständige Überwachungsstelle überprüft. Firma Robur oświadcza, że wymienione w deklaracji wyroby: Układy ciśnieniowe Gazowych Absorpcyjnych Wytwornic Wody Lodowej produkowanych przez ROBUR S.p.A., z serii GA: ACF60-00 (w wykonaniu standardowym oraz wersje specjalne);...
  • Page 68 Lochinvar Ltd Hight Efficiency Water Heaters and Boilers 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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