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Summary of Contents for Gruppo Imar Gimax 25
- Page 1 25-30 Kondens Wall-mounted condensing boiler Caldaia murale a condensazione LIBRETTO DI INSTALLAZIONE, PRIMA ACCENSIONE, USO E MANUTENZIONE INSTALLATION, COMMISSIONING, USE AND MAINTENANCE MANUAL ITALIAN DESIGN...
- Page 3 25-30 MANUAL VERS. 11/2020 - REV.1...
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Page 4: Table Of Contents
TABLE OF CONTENTS -Connecting the condensate line General requirements -Connection to the mains gas supply -EC conformity declarartion -Connection to the mains electrical system 19 -General instructions -Combustion gas evacuation Use and operation system: compatible applications -Description of the boiler -Combustion gas -Components evacuation system: installation... -
Page 5: Use And Operation
USE AND OPERATION DESCRIPTION OF THE BOILER The range of wall-hung condensing boilers is to manage the system in such a way as to completed by the GiMax model. A perfect, always provide maximum efficiency and powerful, reliable and ecological boiler, it is minimum waste. -
Page 6: Ignition
Pict. 3 GIMAX MN/CN (CH ONLY) 1) MAIN HEAT EXCHANGER 2) EXHAUST SAFETY SENSOR 3) CH PROBE/SAFETY PROBE 4) - 5) SAFETY VALVE 6) - 7) - 8) CIRCULATOR UNIT 9) - 10) PRESSURE TRANSMITTER 11) GAS VALVE 12) - 13) FAN 14) EXPANSION VASSEL 8 LT 15) RETURN PROBE... -
Page 7: Season Selection
IGNITION Turn on the boiler electric supply by the switch installed on the power supply line to the boiler. Pict. 5 The LCD display will turn on immediately, showing the software version loaded on the PCB microprocessor; the boiler goes into stand-by and the display show the word OFF. -
Page 8: Temperature Regulation
TEMPERATURE REGULATION Setting CH temperature DHW temperature and CH temperature can be adjusted by setting the desired temperature value; Press button “C” to increase temperature value the temperature will be reached, if possible, and and button “D” to decrease it; the set value maintained at the set value. -
Page 9: Information Menu
INFORMATION MENU By accessing the “Information Menu” it is possible to To access the menu pages, press button “E”. The consult the information that is shown on the display successful access will be confirmed by the display of without any possibility of modifying the functional the menu page alternating with the relevant value. -
Page 10: Operation With Room Thermostat
OPERATION WITH ROOM THERMOSTAT A S K Y O U R A R E A I N S T A L L E R Energy savings regulations REQUIRE F O R I N F O R M A T I O N O N T H E the boiler to be connected to a room INSTALLATION AND OPERATION thermostat in order to optimally regulate... -
Page 11: Special Functions
SPECIAL FUNCTION - Heating system Anti-frost function (all A L W A Y S L E A V E T H E B O I L E R models) POWERED ON AND THE SHUT-OFF VALVES OPEN, IF THE SYSTEM IS The anti-frost function is always active and EXPECTED TO BE SUBJECT TO VERY prevents the heating system water from freezing. -
Page 12: Faults
FAULTS All the functions supported by the boiler are managed by a microprocessor system, which, in addition to allowing them to perform perfectly with the aim of obtaining the best Pict. 10 possible home comfort, constantly checks that the functional parameters fall within a wide range of necessary safety, therefore that all the devices work perfectly. -
Page 13: Fault Codes Table
FAULT CODES TABLE Code Possible cause Behaviour Possible actions Check gas presence Check gas line pressure Check ignition/ Ignition failed Boiler locked detection electrodes Check electronic cable Check igniter Heating system temperature Boiler locked Replace DHW sensor sensor fault Domestic hot water system DHW supplied in provisional mode Replace CH sensor temperature sensor fault... -
Page 14: Installation
INSTALLATION OPERATION DIAGRAM COMBINATION: DOMESTIC HOT WATER + CENTRAL HEATING 1) Primary heat exchanger Pict. 11 2) Burner 3) Fun 4) Gas valve 5) Three-way valve 6) Safety valve 7) Filling loop cock 8) Hot water priority turbine 9) Secondary heat exchanger 10) Circulator unit 11) Expansion tank CENTRAL... -
Page 15: Electrical Wiring Diagram
ELECTRICAL WIRING DIAGRAM COMBINATION: DOMESTIC HOT WATER + CENTRAL HEATING Pict. 14 HALL/Black P.P. 0VDC/Blu Input/Brown BLACK - GND RED - PWM INPUT T.A. /O.T P.F. E.A. GREEN -HALL SENSOR E.P. BLU + 24 VDC S.P. 2 - 4 / H.P. 1 - 3 / S.T. -
Page 16: Graphs For The Head Available To The System
GRAPHS FOR THE HEAD AVAILABLE TO THE SYSTEM Pict. 16 COMING SOON 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
Pict. 17 FASTENING THE BOILER TO THE WALL Attach the cardboard template giving the Fig. 18 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 Fig. 19 EXAUST AIR INTAKE Only Eco MR Only Eco MN PLUMBING THE BOILER Connect the water and central heating pipes to • THE MANUFACTURER ASSUMES the boiler, respecting the positions and distances NO RESPONSIBILITY FOR DAMAGE indicated (Pict. -
Page 19: Connecting Filling Tap For Central Heating Only Boilers
CONNECTING FILLING TAP FOR CENTRAL HEATING ONLY BOILERS In order to fill the system, it is sufficient to connect the supplied ball valve to the 1/2” DHW intake and connect this to a water pipe. Pict. 20 Filling ball valve FILLING THE SYSTEM When all of the boiler connections have Perform the filling and topping... -
Page 20: Connection To The Mains Gas Supply
Fig. 22 The installer will be responsible for providing a condensation neutralization system if necessary A check and possible cleaning of the siphon and the condensation drainage system is recommended at least once a year. Siphon Condensing exhaust Condense collecting pipe Clean water draining CONNECTION TO THE MAINS GAS SUPPLY Before connecting the boiler to the mains gas,... -
Page 21: Connection To The Mains Electrical System
CONNECTION TO THE MAINS ELECTRICAL SYSTEM For safe installation of the boiler it must also be • Cut power to the boiler using the power correctly connected to the mains electrical switch installed before it. supply in accordance with all applicable •... -
Page 22: Combustion Gas Evacuation System: Compatible Applications
COMBUSTION GAS EVACUATION SYSTEM: COMPATIBLE APPLICATIONS The boiler is a type C room-sealed fan-assisted intake in separate common flues, but which device; the air intake and flue must be are exposed to similar wind conditions. connected to a combustion gas evacuation/ •... -
Page 23: Combustion Gas Evacuation System: Installation
COMBUSTION GAS EVACUATION SYSTEM: INSTALLATION The boiler, can be connected to COAXIAL the boiler and outside terminals as well as all and SPLIT intake and flue evacuation systems. necessary seals. Below is a list of compatible The “coaxial” system is composed of a single components with their relative characteristics: pipe containing both the flue and intake pipes on the same axis. - 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° bend M-F 45° bend 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: Air Intake And Combustion Gas Evacuation System: Important Information
AIR INTAKE AND COMBUSTION GAS EVACUATION SYSTEM: IMPORTANT INFORMATION FOLLOW APPLICABLE LEGISLATION AND REGULATIONS TO THE LETTER. INSTALL AIR INTAKE AND FLUE EVACUATION SYSTEMS CONFORMING TO THE SPECIFICATIONS GIVEN ON THE TECHNICAL DATA PLATE AND OBSERVE ANY LIMITATIONS ARISING FROM APPLICABLE LEGISLATION AND REGULATIONS TO THE LETTER. -
Page 26: Adjustment And Maintenance
ADJUSTMENT AND MAINTENANCE All maintenance operations MUST BE the end of every heating season (winter) PERFORMED BY QUALIFIED PERSONNEL. and whenever else it is considered necessary These operations must also be performed in order to keep it in optimum operating in full compliance with all applicable condition. - Page 27 Pict. 29 NSURE 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 28: Data Plate
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 H= Approved types of exhaust exchange configuration I= Date of production J= P.I.N. -
Page 29: Testing The Gas Supply Dynamic Pressure
inside and outside the building, as well as Commissioning / periodically: inside the device, where applicable, is tested - Check that the above specifications have for tightness. been - That the gas line meets all applicable maintained and that the boiler is in perfect legislation and regulations, in particular: That working order. -
Page 30: Analysis - Checking And Regulating Combustion
Pict. 31 ANALYSIS - CHECKING AND REGULATING COMBUSTION The boiler comes already calibrated and “L” until the specified CO 2 value is obtained. tested for the requested type of gas, however Turn clockwise to increase the CO 2, value, it is advisable to check that the type of anticlockwise to decrease it. - Page 31 CO2 VALUES TABLE NATURAL GAS G20 LPG G31 25 KW MR/MN 30 KW MR/MN 25 KW MR/MN 30 KW MR/MN CO2 max power 9,1 + 0,1 - 0 9,0+ 0,1 - 0 10,1 + 0,1 - 0 10,1+ 0,1 - 0 CO2 min power 8,9 + 0,1- 0 8,9+ 0,1 - 0...
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Page 32: Changing Gas Type
CHANGING GAS TYPE When necessary, it is possible to modify / propane) and vice versa. the boiler to run on types of gas which are In order to perform this change the boiler’s supported but which the boiler was not set basic configuration must be modified to that up for in the factory. -
Page 33: Configuration The Accessing Menu
CONFIGURATION THE ACCESSING MENU It is possible to view information or perform from displaying information on the state or complete configuration of the boiler by presence of most of the devices, also allows accessing the pages of CONFIGURATION the configuration parameters to be altered, MENU. -
Page 34: Configuration Menu
System type 1 = High 2 = Low temperature temperature Burner ignition power % with NATURAL GAS For GiMax 25 supply For GiMax 30 Burner ignition power % with LPG supply For GiMax 25 For GiMax 30 Burner maximum power... - Page 35 Description Default “Post ventilation” time sec in DHW Δ burner ignition in CH mode ° C Δ burner shutdown in CH mode ° C Δ burner ignition in DHW mode ° C Δ burner shutdown in DHW mode ° C ΔT prim in DHW emergency °...
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Page 36: Installation Of Room Thermostat/Open-Therm
INSTALLTION OF ROOM THERMOSTAT/OPEN-THERM It is recommended, and in many cases cable gripping tabs on the side of the case mandatory, to connect the boiler to a - Close the case cover with the 4 screws, device which monitors and regulates the paying attention that all the cables running temperature in the areas served by the boiler out of the case are correctly positioned... -
Page 37: Of External Temperature Sensor
INSTALLATION OF EXTERNAL TEMPERATURE SENSOR Type and positioning: (guttering, arches, frames etc.). Avoid the Use an NTC 10K_ ß 3435 pre-wired sensor with sensor being even partially immersed in protective cover. water, ideally ensuring it does not come Position the sensor outside the area to be into direct contact with ice formations, heated facing NORTH/NORTH WEST, or in either. -
Page 38: Configuring The Climate Curve From Those Available
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 the temperature measured by the external via the corresponding parameter on page... -
Page 39: Special Functions
SPECIAL FUNCTIONS ANTI-FROST: on the central heating flow circuit is < 4°C, This function is always active, whatever mode circulation is activated, the diverter valve the boiler is in. (when present) switched to the CH circuit and In order to allow this function to fulfil its the burner lit at minimum power. -
Page 40: Thermostat Post Circulation/Ventilation Function
THERMOSTAT POST CIRCULATION/VENTILATION FUNCTION In winter mode: In summer mode: In order to prevent an overheat stress, in In order to prevent an overheat stress, in case at the end of a CH request the heat case at the end of a DHW intake the heat exchanger temperature is too high, a heat exchanger temperature is too high, a heat disposal function by circulator pump ignition... -
Page 41: Technical Data Sheet
TECNICAL DATA SHEET GIMAX 25 MR/CR GIMAX 25 MN/CN GIMAX 30 MR/CR GIMAX 30 MN/CN II2H3P Category II2H3P II2H3P II2H3P Type B23 C13 C33 C43 C53 C83 B23 C13 C33 C43 C53 C83 B23 C13 C33 C43 C53 C83 B23 C13 C33 C43 C53 C83... - Page 42 35°C l/min DHW min. flow rate l/min DHW min. flow rate l/min DHW flow limiter l/min DHW flow limiter l/min GiMax 25 MR/CR GiMax 25 MN/CN GiMax 30 MR/CR GiMax 30 MN/CN Fuel 2,12 2,12 2,62 2,62 Fuel Gas consumption at nominal load...
- Page 44 MADE IN ITALY KLEINE KESSEL SRL Via Solferino 55/E - 25122 Brescia, BS (Italy) Sede operativa: Loc. Campogrande 13 - 29013 Carpaneto Piacentino (PC), Italy tel. + 39 0523 850513 - fax. +39 0523 850712 - www.aircontrol-pc.com - www.produzionecaldaie.it...
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