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Summary of Contents for Italtherm CITY BASIC
- Page 1 CITY BASIC Instruction Handbook for: us e in s t a l l a ti o n a d j u st m e nt m ai n t en an ce 24 C...
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Page 2: Table Of Contents
Table of Content Safety warnings Domestic water supply characteristics . . . . . . 14 Protection against freezing . . . . . . . . . . . . . . . 14 Safety warnings symbols legend . -
Page 3: Safety Warnings
Safety warnings This instructions manual is an essential and complementary part of the product and it is supplied to- gether with the boiler . Carefully read the manual, achieving all important information for a safe installation, use and servicing . f Carefully keep the manual, together with the documentation of all the accessories of the boiler and of the system, for any further consultation you may need. -
Page 4: Safety Warnings Symbols Legend
Safety warnings symbols legend Generic safety Electrical danger Physical danger warning (fulguration) (personal damage) Thermal danger General warning or advice to avoid material damage (burns) or to achieve improvements References to Laws and Norms All the references to norms and national laws mentioned in this handbook are indicative as laws and norms are subject to issues and integrations by the authorities in charge. -
Page 5: User Warnings
The first starting up and the maintenance of the boiler must be performed by a professionally qualified staff (for example the installer or the Service Centres authorized by ITALTHERM) Gas conversion from a gas of a specific family to a gas of another family (from natural gas to LPG or vice versa) to another gas, can be made also when the gas boiler is already installed, but only by a qualified technician. -
Page 6: Installation, First Starting Up, Maintenance
f Do not put any object on the gas boiler and don't leave any flammable liquid or solid materials, (e.g. paper, clothes, plastic, polystirene) in its proximity. f This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervi- sion or instruction concerning use of the appliance by a person responsible for their safety. -
Page 7: User Guide
User guide The front control panel Electrical Supply Indicator Light green Off - boiler not electrically supplied. Blinking - boiler electrically supplied, but not active because the knob 12 is on . On - boler active. Knob 12 on , or on ... -
Page 8: Commands On The Lower Side
On trade are available programmable room thermostats: most of them allow to make a weekly programming of various temperature levels, besides special programs for various purposes. We suggest to choose original ITALTHERM accessories... -
Page 9: Typical Use
Typical use Preliminary operations f Firstly, the knob 12 should be on the position 8 . f Make sure, by the gauge 17 that the cold-system temperature is al- service ways within 0.5 and 1.5 Bar (opti- mal: 1÷1.5 Bar). When the pressure drops below 0.5 Bar, the boiler stops working. -
Page 10: Incidental Malfunctioning
"User Guide" section and expressly allowed to the User. Always address yourselves to qualified personnel. Boilers must be always equipped with original accessories only. ITALTHERM Srl is not responsible for damages caused by the incorrect, wrong or unreasonable use of not original materials. The burner doesn’t turn on f if the room thermostat (or programmable room thermostat, or similar) is installed, check that it is really requiring the room heating;... -
Page 11: Boiler Inactivity
Boiler inactivity The effects of the periods of inactivity can be relevant in particular situations such as in flats used only for some months per year, most of all in cold places. The user will have to decide to put the boiler in the SAFETY SHUT OFF state disconnecting all the sup- plies, or to leave it in stand-by and use the Anti Frost Function. -
Page 12: Ambient Anti-Frost" Function
ATTENTION: the anti-frost protections cannot intervene in the absence of electricity. If you an- ticipate this possibility, we recommend you add a good brand of anti-freeze to the heating sys- tem, following the producer’s instructions. We recommend to ask directly the installer/technician about the type of antifreeze product put in the heating system during installation. -
Page 13: Dimensions And Connections
F Fresh water inlet (½”) Pump capacity diagram 00023 A The graph is referred to the capacity available to the system. City Basic 24 C speed 2 of the pump speed 3 of the pump 1000 1200 1400 water flow (l/h) -
Page 14: Domestic Water Supply Characteristics
ITALTHERM S.r.l. will not be held responsible for consequent damages. Instruct the User about the antifreeze function of the boiler and about the antifreeze product added in the heating system. - Page 15 If necessary, the open hooks can be positioned at any point along the edge B 32.5 32.5 of the boiler's frame bracket, provided that they are 2 and that they support the device in a correct and safe way . 45 35 Remark: A re-usable metal jig ( D in the figure) can be ordered separately, so as to facilitate connec- tions and fixing points positioning (when the original connection kit is used).
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Page 16: Hydraulic System (Dhw And Heating)
(consider that 1 mm of limestone incrustations reduces of 18% the thermal exchange of the heating element on which it has been formed). ITALTHERM guarantees its products only if the characteristics of the water comply with UNI 8065, re- ported also in laws on energy saving . -
Page 17: Gas Connection
f Check the correct functioning of automatic venting de- vices, eventually installed; f Close the radiators venting devices as soon as water flows out of them; f Make sure, by reading the pressure gauge 2, that the pres- sure reaches the optimal value of 1.0 bar (max 1.5 bar); f Close the water supply valve 1 and bleed each radiator again;... -
Page 18: Electrical Connections
ITALTHERM S.r.l. declines any responsibility for damages to persons, animals or things caused by the faulty or missing connection of the boiler earthing and by failure to comply with the rules. - Page 19 11BS Model Diameter D of the flue pipe City Basic 24 C 130 mm The boiler is fitted with a safety thermostat for the flue flow detection, that triggers when the combustion products reflow into the room. This device must never be bypassed or put out of order.
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Page 20: Flue Terminals Positioning
Flue terminals positioning Posizionamento dei terminali di tiraggio (nella parete stessa di cui si sta valutando la zona di rispetto) per apparecchi a tiraggio naturale in funzione della loro portata termica (per informazioni dettagliate, vedere la norma UNI 7129-3:2008 e successive modifiche o integrazioni) Distanze minime (mm) Apparecchi Apparecchi... - Page 21 Notes...
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Page 22: Adjustment And Maintenance
Adjustment and Maintenance ATTENTION: the operations described below must be carried out only by qualified personnel [authorized by ITALTHERM] . When regulation/measuring is over, remember to tighten pressure tapping point screws and ALWAYS check for gas leaks! Before boiler ignition, verify that pump is not blocked due to its inactivity: unscrew the plug located in the middle of the cap to gain access to the rotor shaft, and turn it manually using a screwdriver or another suitable tool. -
Page 23: Inlet Gas Check
Inlet gas check Remark: The pressure should be measured at nomi- nal input, so this test must be performed with the burner ignited. Loosen (2-3 turns) the screw of pressure tapping point for gas inlet 2 of the gas valve and insert the manometer sensor;... -
Page 24: Max Heating Power Adjustment
wait at least 10 seconds and verify that the measured pressure corresponds to the MAX value indicated in the Burner Pressure table (see page 26), with regard to the boiler model and gas type; extract one of the connectors 4 that supply the modulation coil;... - Page 25 • when the display shows “PO” flashing, within 15 seconds turn the Summer/Winter knob on the MAXIMUM value of the scale of the heating (fully clockwise). The service indication ap- pears on the display and the burner ignites to the maximum output not modulated (the YELLOW indicator turns on);...
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Page 26: Burner Pressure Tables
Burner pressure tables Note: the max heating power adjustment is allowed only in boilers classified as "range rated". HEAT OUTPUT NATURAL GAS G20 BUTANE G30 PROPANE G31 Display value kcal/h mbar mm H mbar mm H mbar mm H MIN . 8 .8 7568 2 .2 4 .8... -
Page 27: Main Board Settings
"Gas conversion" on page 28. OFF In City Basic Boilers it must be OFF . Factory setting . It determines the delay of 3 minutes, before the new ignition of the burner after the over- coming of the heating set temperature. -
Page 28: Gas Conversion
Gas conversion ATTENTION: the operations described below must be carried out only by qualified personnel [authorized by ITALTHERM S.r.l.]. For gas conversion, use the nozzles supplied by boiler manufacturer only. Using LPG, it is absolutely necessary to install a suitable pressure reducer upstream the boiler. -
Page 29: Combustion Check
Combustion check The boiler has the “chimney-sweeper” function, forcing burner ignition at the maximum output not modulated. This function allows more reliable measurements of those obtained when the gas boiler is activated through the room thermostat or hot water demands. f Prepare the instruments for combustion checking;... -
Page 30: Draining The Heating System
Draining the heating system When it is necessary to drain the heating system, pro- ceed as described here below: f Connect a rubber pipe to the draining tap terminal 1 ; f put the other end of the pipe in a suitable drain or sink;... - Page 31 Signal Probable causes Suggested solutions the boiler has over- Turn the knob on the unlock position until the red lamp heated turns off (or eventually for a longer period to make the boiler cool), Safety Thermostat then then bring the knob in the previous position. If necessary, wait has triggered and try again for few times.
- Page 32 Signal Probable causes Suggested solutions Insufficient system Restore the correct pressure as described in "Preliminary opera- pressure tions" on page 9 or (preferibly bu the Technician) in "Heating system (loss of water pressure filling and pressuring" on page 16. switch triggered) Remark: Consider that the pressure, in normal conditions, should not decrease with the progress of the time.
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Page 33: Warnings For Servicing
Signal Probable causes Suggested solutions System error Detect the fault or anomaly also referring to the technical literature reserved to the service centres . Anomaly of inner boiler device(s) Mains electrical YELLOW power supply out of tolerance limits – – The “Hot Water”... -
Page 34: Technical Data
Clean casing with soapy water only. Do not clean casing, other painted or plastic surfaces with thin- ner . f In any case of parts replacement, it is mandatory to use ITALTHERM original spare parts. ITALTHERM declines any responsibility in case of non-original spare parts utilization. - Page 35 TECHNICAL DATA (cont'd) City Basic 24 C U.M. Gas type G30 / G31 HOT WATER Flow rate at 25°C temp. rise l/min 13 .3 Flow rate at 30°C temp. rise l/min 11 .1 Min water flow l/min 2 .2 (for the DHW function activation) Min supply pressure 0 .5...
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Page 36: Boiler Internal Components
Boiler internal components Flue thermostat 11 Gas valve Flue hood 12 System pressure gauge Safety thermostat for 13 Priority flow switch (with filter) max. water temperature 14 Filling valve Expansion vessel 15 Drain valve Ignition electrode 16 Loss of water pressure switch DHW temperature sensor 17 Pump Flame sense electrode... -
Page 37: Electrical Diagram
Electrical diagram 11.1 YE-GN YE-GN 43 44 45 51 52 11.2 43 44 45 51 52 YE-GN Flue thermostat (*) Optional external devices: Safety thermostat for 28 Room thermostat: Voltage-free Contact for Room Thermostat or Chronothermostat (for trade) working at max. -
Page 38: Hydraulic Diagram
Hydraulic diagram This diagram is for information only. To make boiler hydraulic connection either see "Dimen- sions and connections" on page 13 and eventually "Positioning and fastening" on page 14. C F G 18 Heating circuit temperature sensor Flue thermostat 19 Burner Flue hood 20 Bithermic exchanger... -
Page 39: Remote Control Kit
Remote Control Kit This remote control is more than a simple room thermostat . Thanks to this, it is possible to manage the boiler in all its set- tings like DHW and CH temperature adjustment, boiler reset in case of boiler block, and of course it works as a room thermo- stat both in manual and weekly program mode. - Page 40 ITALTHERM Srl Via S. D’Acquisto, snc • 29010 Pontenure (PC) - IT Tel. +39.0523.575611 • Fax +39.0523.575600 www.italtherm.it • e-mail: info@italtherm.it UNI EN ISO 9001:2008...
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