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Summary of Contents for Gruppo Imar IVY 24 MR/MN
- Page 1 G20 ENGINEERING A brand by Monothermal Wall-mounted boiler with plate heat exchanger INSTALLATION, COMMISSIONING, USE AND MAINTENANCE MANUAL ITALIAN DESIGN...
- Page 3 IVY 24/28/32 KW MR/MN MONOTHERMAL BOILER MANUAL VERS. 11/2017 - REV.3...
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Page 4: Table Of Contents
CONTENTS General requirements -Combustion gas evacuation and air intake system: -General Information installation Use and operation -Checking the effectiveness of combustion -Description of the boiler gas evacuation -Components -Combustion gas evacuation circuit diaphragms 23 -Ignition -Combustion gas evacuation system: warnings -Interface description Adjustment and maintenance -“Stand-by”... -
Page 5: Use And Operation
USE AND OPERATION DESCRIPTION OF THE BOILER The Ivy range of boilers represents the best 24 to 32 kW power output are indeed appliances available for domestic central available. The flexibility of the Ivy range of heating and hot water production. Their boilers is also increased by the possibility essential but extremely modern and to configure the management program... -
Page 6: Ignition
Pic. 3 IVY MN (Heat only) 1) FUME EXTRACTOR 2) SAFETY THERMOSTAT 5) HEATING SENSOR 7) BURNER 8) IGNITION MONOELECTRODE 9) EARTH ELECTRODE 10) PRESSURE GAUGE 11) CIRCULATOR UNIT 13) PRESSURE SENSOR (TRANSDUCER) 14) SAFETY VALVE 15) GAS VALVE 16) EXPANSION TANK 17) COMBUSTION GAS PRESSURE SWITCH 18) PRIMARY HEAT EXCHANGER IGNITION... -
Page 7: Stand-By" Main Menu
“STAND-BY” MAIN MENU When the boiler is turned on, two operating Pic. 5.1 modes are possible. These constitute the MAIN MENU from which it is possible to set any operating mode required or view the boiler status at any time. The characteristics of the possible options for each page of the MAIN MENU are here listed: Page 1 –... -
Page 8: "Function" Main Menu
“FUNCTION” MAIN MENU The FUNCTION page is always displayed during Pic. 6.1 the normal operation of the boiler. Symbols regarding the following items are always displayed: DHW temperature CH water temperature Boilers for domestic hot water production Season select • The selected season Info Menu •... -
Page 9: Season Selection Main Menu
SEASON SELECTION The boiler has two operating modes, which Pic. 7.1 depend on the basic configuration, in response to the external temperature or the user requirements. These modes can be selected from the FUNCTION page: Boilers for domestic hot water production •... -
Page 10: Information Menu
Pic. 8 Each time this button is pressed, a decrease by 1°C is obtained. Once the needed temperature value is set, do not press the (5-6) buttons anymore. The new DHW temperature value will flash for 5 seconds, then it will be stored and displayed. -
Page 11: Operation With Room Thermostat
“2” 6. Return sensor temperature Fig. 9 7. Fan Speed The automatic exit from the menu happens after 60 seconds of device inactivity, or by pressing any button. “3” The display will return to last menu page active when the INFORMATION MENU was accessed. -
Page 12: Faults
OPERATION WITH OPENTHERM TIMER THERMOSTAT For optimum and even more economical different room to that where the boiler is management of the domestic premises it is installed. p o s s i b l e t o u s e t h e E A S Y C O N T R O L EASY CONTROL can also be used to schedule programmable timer thermostat. -
Page 13: Fault Codes Table
FAULT CODES TABLE (ALL MODELS) Code Possible cause Behaviour Possible actions Check gas presence Check gas line pressure Check ignition/detection Ignition failed Boiler locked electrodes Check electronic cable Check igniter Check flue draught / flue Air pressure switch failure Boiler locked pipes Check fan Heating system temperature... -
Page 14: Installation
INSTALLATION OPERATING DIAGRAM (MR) COMBINATION: DOMESTIC HOT WATER + CENTRAL HEATING Pic. 12 1) Primary heat exchanger 2) Burner 3) Gas valve 4) Three-way valve 5) Safety valve 6) Filling loop cock 7) Hot water priority turbine 8) Secondary heat exchanger 9) Circulator unit 10) Expansion tank DOMESTIC... -
Page 15: Wiring Diagram
ELECTRICAL WIRING DIAGRAM (MR) COMBINATION: DOMESTIC HOT WATER + CENTRAL HEATING Pic. 15 BOILER EARTH LIVE POWER LIVE NEUTRAL PUMP LIVE POWER NEUTRAL PUMP NEUT. FAN LIVE EARTH FAN NEUTRAL LIVE EARTH NEUTRAL GAS VALVE SAFETY THERMOSTAT EXHAUST PRESSURE SWITCH SIGN FLUX +5VDC... -
Page 16: Graphs For The Head Available To The System
GRAPHS FOR THE HEAD AVAILABLE TO THE SYSTEM Pict. 17 for 15-60 (Symona 28/32Kw) for 15-50 (Symona 24Kw) 1020 1080 1140 1200 1260 Q L/h INSTALLATION Use: Adjustment, maintenance and repair of the The boiler has been constructed according boiler must only be performed by qualified to current technical standards and the most and authorised personnel. -
Page 17: Fastening The Boiler To The Wall
Pic. 18 FASTENING THE BOILER TO THE WALL Attach the cardboard template giving the Pic. 19 connection and fastening schemes to the wall, paying attention to the boiler dimensions 24DS / 24BT and necessary clearances. (Pict. 19) 28-32DS / 35CN •... -
Page 18: Layout Of Connections
LAYOUT OF CONNECTIONS Pic. 20 24 KW Pic. 21 28/32 KW... -
Page 19: Plumbing The Boiler
PLUMBING THE BOILER IN Connect the water and central heating • Ensure that the line is always at pipes to the boiler, respecting the positions atmospheric pressure by using and distances indicated (Pict. 20-21); take suitable traps (do not connect particular care when connecting pipes to pipes directly to the valve outlet) ensure they are not placed under pressure... -
Page 20: Connection To The Gas Supply
Pic. 23 CONNECTION TO THE MAINS GAS SUPPLY Before connecting the boiler to the mains Pic. 24 gas, check that it is designed to function with the available type of gas. Thoroughly flush all the gas pipes to remove any residues which could compromise correct operation of the boiler. -
Page 21: Connection To The Electrical System
CONNECTION TO THE MAINS ELECTRICAL SYSTEM For safe installation of the boiler it must also be Pict. 25 correctly connected to the mains electrical supply in accordance with all applicable regulations, and in particular it must be connected to a suitable protective earthing system. - Page 22 COMBUSTION GAS EVACUATION SYSTEM: COMPATIBLE APPLICATIONS The boiler is a type C room-sealed fan-assisted • C42 combustion gas evacuation and air device; the air intake and flue must be intake in separate common flues, but which connected to a combustion gas evacuation/ are exposed to similar wind conditions air intake system.
- Page 23 COMBUSTION GAS EVACUATION SYSTEM: INSTALLATION The boiler, based on its UNI 7129 classification, components necessary for completing the can be connected to COAXIAL and SPLIT line, including changes of direction, straight intake and flue evacuation systems. sections of various lengths, connections to The “coaxial”...
- Page 24 SPLIT SYSTEM 80 mm diameter Description Pressure drop (Pa) Equivalent length m Intake terminal L.950 Flue evacuation terminal L.990 Extension M-F L.1000 90° elbow M-F 45° elbow M-F Intake adaptor d 80 Flue evacuation adaptor d 80 L 5 0 d 6 0 f l u e e v a c u a t i o n connection Neoprene gasket d 128 Neoprene gasket d 100...
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Page 25: Combustion Gas Evacuation Circuit Diaphragms
(intake + flue evacuation) Max length Signal Max pressure drop Signal ( i n t a k e / f l u e evacuation) Ivy 24 MR/MN 24 kW >80 Pascal 170 Pascal >80 Pascal Ivy 28 MR/MN 28 kW >92 Pascal... -
Page 26: Combustion Gas Evacuation System: Warnings
DIAPHRAGMS COAXIAL SYSTEM Diaphragm diameter BETWEEN Ivy 24 MR Ivy 28 MR Ivy 32 MR 0.5 metri 1 metri 35 mm 37 mm 39 mm >1 metri 2 metri 37 mm 39 mm 41 mm >2 metri 3 metri 37 mm 39 mm 41 mm >3 metri... -
Page 27: Adjustment And Maintenance
ADJUSTMENT AND MAINTENANCE All maintenance operations MUST BE be inspected by a qualified technician at PERFORMED BY QUALIFIED PERSONNEL. the end of every heating season (winter) These operations must also be performed and whenever else it is considered necessary in full compliance with all applicable in order to keep it in optimum operating legislation and regulations. - Page 28 Pic. 30 POSSIBLE VALUES FOR PARAMETER P6 0 - NORMAL OPERATION (default) 1 - MINIMUM POWER 2 - MAXIMUM POWER MIN. “MINIMO” “MASSIMO” ENSURE THAT: THE CENTRAL HEATING SYSTEM IS CHARGED AND PRESSURISED ANY SHUT-OFF VALVES FITTED TO THE CH FLOW AND RETURN AND ON THE GAS LINE ARE OPEN AND THAT THE GAS SUPPLY IS AVAILABLE ANY CONTROL VALVES ARE TURNED TOWARDS THE SYSTEM THE SPECIFICATIONS FOR CORRECT INSTALLATION AND COMMISSIONING OF THE BOILER HAVE BEEN OBSERVED.
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Page 29: Power Adjustment
DATA PLATE Pict. 31 - TECHNICAL DATA PLATE 0= Supervisory body A= Type of boiler B= Boiler model C= Serial Number D= Code E= Country of destination F= Manufacturer G= Category Class NOx H= Approved types of exhaust exchange configuration I= Date of production J= P.I.N. -
Page 30: Gas Pressure Check
inside the device, where applicable, is tested Commissioning / periodically: for tightness. - Check that the above specifications have - That the gas line meets all applicable been maintained and that the boiler is in legislation and regulations, in particular: That perfect working order. -
Page 31: Checking Mains Gas Supply Dynamic Pressure
Pict. 34 TESTING THE GAS SUPPLY DYNAMIC PRESSURE: - Use the SERVICE function to bring the boiler Check that the value measured with the to maximum power. manometer falls within the max-min interval - Measure the gas pressure before the given in the “Dynamic mains supply pressure”... -
Page 32: Checking Pressure At Burner At Max Power
CHECKING PRESSURE AT THE BURNER AT MAXIMUM POWER If the measured value does not correspond • Ensure that the SERVICE function is active and configured for maximum to the table, adjust the external adjustment power. Measure the gas pressure screw on the gas valve until it does, turning after the regulator by connecting the it CLOCKWISE to increase the pressure and ANTICLOCKWISE to reduce it. -
Page 33: Configuring The Software For A Change Gas Type
CONVERSIONS MUST ALWAYS BE PERFORMED BY QUALIFIED PERSONNEL It is necessary to access the burner in order to change - Replace the burner tray pack, fastening it to the the nozzles: manifold with the 4 front screws, together with any - Completely disconnect the boiler from the electrical previously removed deflectors and conveyors supply... -
Page 34: Access To Configuration Menu
THE USE OF INJECTORS DIFFERENT THAN THOSE SPECIFIED CAN ENDANGER PERSONS AND PROPERTY. CHECK THAT THE BURNER TRAY PACK AND ALL OTHER PREVIOUSLY REMOVED COMPONENTS ARE CORRECTLY POSITIONED BEFORE CONNECTING THE GAS SUPPLY AND STARTING THE BOILER. SET ACCORDING TO: APPLIANCE Conversion performed on date B E F O R E C O M M I S S I O N I N G T H E N E W L Y... -
Page 35: Installer Menu
Pic. 38 Pic. 39 5 sec Page number N° PAGINA Value VALORE THE DESCRIPTIONS AND VALUES GIVEN IN ITALICS IN THE TABLE BELOW ARE ONLY TO BE USED WHEN IT IS NECESSARY TO CHECK THE CONFIGURATION. MODIFICATION OF THE PARAMETERS IN ITALICS CAN CAUSE THE BOILER TO MALFUNCTION AND BE DAMAGED OR DESTROYED. - Page 36 Page Description Default Boiler type setting 0 = combination with plate heat exchanger 0=MR 1= combination with DHW storage tank 2=MN 2= central heating only 3 = combination with bithermal primary heat exchanger Gas type setting 0 Natural gas 1 LPG System type 1 High temperature 2 Low temperature 1...
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Page 37: Room Thermostat/Opentherm Installation
INSTALLATION OF ROOM THERMOSTAT/OPEN THERM It is recommended, and in many cases - Close the case cover with the 4 screws, mandatory, to connect the boiler to a paying attention that all the cables running device which monitors and regulates the out of the case are correctly positioned temperature in the areas served by the boiler - Retur n the electrical panel to the... -
Page 38: Installation Of External Temperature Sensor
INSTALLATION OF EXTERNAL TEMPERATURE SENSOR Type and positioning: with metal structures and surfaces (guttering, Use an NTC 10K_ß 3977 pre-wired sensor with arches, frames etc.). Avoid the sensor being protective cover. even partially immersed in water, ideally Position the sensor outside the area to be ensuring it does not come into direct contact heated facing NORTH/NORTH WEST, or in any with ice formations, either. -
Page 39: Configuring The Climate Curve
CONFIGURING THE CLIMATE CURVE FROM THOSE AVAILABLE: Operation in external sensor mode makes the It is possible to adapt the boiler’s response boiler heat the water in the central heating based on the climatic conditions present by circuit to a temperature which depends on configuring the slope of the climate curve via the temperature measured by the external the corresponding parameter on page P7 - P8... -
Page 40: Special Functions
SPECIAL FUNCTIONS: ANTI-FROST: If the temperature measured by the sensor This function is always active, whatever mode on the central heating flow circuit is < 6°C, the boiler is in. circulation is activated, the diverter valve In order to allow this function to fulfil its (when present) switched to the CH circuit and purpose, the device must be: the burner lit at minimum power. -
Page 41: Thermostat Post Ventilation Function
THERMOSTAT POST VENTILATION FUNCTION In order to prevent an overheat stress, in This function remains active until the case at the end of a DHW intake the heat temperature values decrease and the heat exchanger temperature is too high, a heat exchanger returns to its normal temperature. -
Page 42: Technical Data Sheet
Ivy 24 MR/MN Ivy 28 MR/MN Ivy 32 MR/MN TECHNICAL DATA U.M. Category II2H3P II2H3P II2H3P CE-1299CS0116 CE-1299CS0116 CE-1299CS0116 NOx Class Type B22p-C12-C32-C42 B22p-C12-C32-C42 B22p-C12-C32-C42 -C52-C62 -C52-C62 -C52-C62 Gas used Heat input max. 26,0 30,0 Heat input min. 10,0 11,2 Heat output max. - Page 44 MADE IN ITALY G20 ENGINEERING A brand by G20 ENGINEERING SRL Loc. Campogrande 13, 29013 CARPANETO PIACENTINO (PC), Italy phone +39 0523 850513 - fax. +39 0523 850712 - www.aircontrol-pc.com - www.g20engineering.com...
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