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Summary of Contents for Italtherm CITY PLUS Series
- Page 1 instruction Handbook installation adjustment maintenance CITY PLUS 24 HE 30 HE Green Heating Technology IMPORTANT! Install the gasket includ- ed in the documents bag, on the intake/ outlet flange, as shown on page 20.
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Page 2: Table Of Contents
Table of Content Safety warnings Condense drain . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Heating system filling and pressuring . -
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 references to laws and laws contained in this handbook, as well as all installation, maintenance and use prescriptions and the relevant pictures, are relevant to European and/or Italian regulation. -
Page 5: User Warnings
First starting up and Use 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) The latter will check that: f the label technical data of the gas boiler correspond to those of the gas available;... -
Page 6: Installation, First Starting Up, Maintenance And Servicing
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. Children should be supervised to ensure that they do not play with the appliance. -
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 along the scale Flashing with short pulses - actuated for mistake, by the user, a function reserved to... -
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 Green Heating Technology... -
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 always within 0.5 and 1.5 Bar (optimal: 1÷1.5 Bar). When the pressure drops below 0.5 Bar, the boiler stops work- ing. -
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
Instructing the user: at the end of the installation, the installer must: • explain the operation of the boiler and its safety devices to the user; • give this user this booklet and the documentation within his/her competence, duly filled in where required. -
Page 14: Warnings For The Installation Of Optional Kits Or
City Plus 30 HE 00250B 1000 1200 water flow (l/h) Warnings for the installation of optional kits or special systems Floor heating system The safety thermostat(s) that protects the floor against overheating (that could damage the cladding, the structure or the system itself) must be installed on the flow starting end of the serpentine embedded in the floor itself. -
Page 15: Protection Against Freezing
ITALTHERM S.r.l. will not be held responsible for consequent dam- ages . Instruct the User about the antifreeze function of the boiler and about the antifreeze product added in the heating system. -
Page 16: Outdoor Installation In A Partially Protected
Outdoor installation in a par- tially protected place “HE” forced draught models can be installed out- door, but only in partially protected places. The boiler minimum and maximum working tem- peratures are mentioned in the paragraph "Tech- nical data" on page 42 and on the boiler data plate . -
Page 17: 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 18: Heating System
Heating system f Connect the safety evacuation ducts of the boiler to an evacuation funnel. If safety valves are not connected to an evacuation device, their intervention could flood the room. The manufacturer can- not be held responsible for any damage arising from that situation. Condense drain Insert the flexible pipe of condense outlet inside the outlet funnel (or other inspectable connection de- vice) properly installed for this purpose, or in the outlet funnel of the safety valve, in case of the above... -
Page 19: Gas Connection
Gas connection Due to various installation possibilities, the gas cock 3 supplied with the original Connections Kit has a simple male Ø ½” connection, facing the rear of the boiler. The gas pipe 4, upstream the gas cock 3, should be supplied by the installer. -
Page 20: Flue Systems
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 21 If it is possible, we recommend to foresee (referring to the direction of the air/flue, see examples on page 22) an upwards slope for all the inlet and outlet ducts, in order to: f PREVENT the water or dust or other objects entrance inside the INLET duct. In case of coaxial ducts, use the special horizontal terminal, which is especially built to respect these slopes only for the first tract of the inlet duct;...
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Page 22: Examples Of Installation Of Inlet And Outlet Ducts
Examples of installation of inlet and outlet ducts We give you some correct and wrong examples of installation of inlet and outlet ducts for condensing boilers (the slope are voluntarily represented in an exaggerated way). A = Inlet; S = Outlet. 1: the most functional and economic solution is to let the condense come back towards the boiler . -
Page 23: Dimensioning The Inlet And Outlet Ducts
Dimensioning the inlet and outlet ducts In the list that follows, you will the characteristic losses of load of the original fume venting accessories, expressed as equivalence in meters (m). Se fossero previsti accessori di fumisteria originali aggiuntivi rispetto a quelli raffigurati, nel cal- colo della lunghezza totale devono essere considerate le relative perdite di carico equivalenti, espresse come equivalenza in metri (m) nell’elenco seguente. -
Page 24: Flue System Types
Flue system types Split pipe system (C Example of split pipe Original*** split pipe system Ø80mm Mod . system (C AS+SC min÷max (m) SC max (m) Diaphragm (a) 24 HE 2 ÷ 30 Ø42; 8m 30 HE 2 ÷ 30 Ø42;... -
Page 25: Adjustment And Maintenance
Adjustment and Maintenance WARNING: Hereby described operation can be performed by qualified technicians only. When regulation/measuring is over, remember to tighten pressure tapping point screws and ALWAYS check for gas leaks! The siphon is an integral part of the combustion system and it’s necessary to check its seal during every technical intervention on the boiler. -
Page 26: Access To The Inside Of The Boiler
Access to the inside of the boiler Unscrew the screws 1 and remove the lower grid 2, if any; Remark: Lower grid is spare inside packing, not assembled. Push the casing 3 upwards and remove it; unscrew the two screws 4 and overturn downwards the control panel 5; after the regulations, close the boiler repeating everything in the other sense, carefully hooking the casing 3 to the tongues 6 . -
Page 27: Max Heating Power Adjustment
• provide that Room Thermostat contact is closed (activated) or open an hot water tap (the heat produced by the boiler will be drained consequently); • turn the Hot Water knob to the position Chimney-sweeper and wait (about 5 seconds) that the display shows “SE”... - Page 28 • turn the Hot Water knob on service position: on the display will appear a flashing number from 00 to 99 that indicates the current set point of the value of heating power, where the value 00 cor- responds to the minimum setting of the gas valve and the value 99 corresponds to the maximum;...
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Page 29: Burner Pressure Tables
Burner pressure tables HEAT OUTPUT NATURAL GAS G20 BUTANE G30 PROPANE G31 Display value kcal/h mbar mm H mbar mm H mbar mm H MIN . 9 .5 8172 2 .2 4 .2 5 .0 9460 2 .9 5 .6 6 .7 10320 3 .4... -
Page 30: Electronic Settings
Electronic settings Accessing the main board To access the main board: Cut off the electrical supply to the boiler. Restore the supply after having closed the contol panel rear cover . f unscrew the screws 1 and remove the back cover of the control panel . -
Page 31: Combustion Check
It determines the delay of 3 minutes, before the new ignition of the burner after the over- coming of the heating set temperature. OFF delay ON (for normal radiators systems). Factory setting . delay OFF (for fan coil systems). OFF In these models it must be OFF . Factory setting . Pump functioning mode during heating working. - Page 32 Green Heating Technology...
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Page 33: Draining The Heating System
access the main board and switch SW1 (see also "Main board settings" on page 30) accordingly with the available gas type: • OFF for Natural gas (G20), • for Butane (G30) or Propane (G31) ensure that the inlet gas pressure complies with the required nominal pressure (see "Technical data"... -
Page 34: Pump Settings
Pump settings The circulating pump is already set by the factory for all normal boiler applications. Should it be neces- sary to change the head curve (see page 13) to optimise the system operation or reduce any noise caused by a too fast circulation, proceed as follows. Visualizzazioni Switch on the boiler in Winter mode and activate the heating request (to activate the circulating pump). -
Page 35: Alarms - Boiler Block
Alarms - boiler block Following a malfunction, the boiler can lock-up and show a particular signalling, consisting of an alarm code on the display and of the status of the RED light indicator (and eventually of the GREEN and the YELLOW ones). In the following table, all the alarm signals are listed, their most probable causes and the suggested solutions. - Page 36 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 bring the knob in the previous position. If necessary, wait and has triggered try again for few times.
- Page 37 Signal Probable causes Suggested solutions Memory-stored User: Disconnect the electrical supply to the boiler by operating the data not coherent . suitable external bipolar switch, then connect it again after a few minutes. If the lockout persists or reappears, call the Service Centre. Redo all the boiler settings ("Max heating power adjustment"...
- Page 38 Signal Probable causes Suggested solutions Unexpected flame Wait for the boiler automatic reset (5 minutes) or reset it manually by turning the knob on the unlock position , waiting the control elec- the red light to turn off, then bringing the knob in the previous po- tronic has detected sition.
- Page 39 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 Over-temperature The water that returns to the boiler from the heating system is too of water on system hot: this may be an effect of a malfunction of the system, and any- return...
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Page 40: Warnings For Servicing
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 41: Erp Data - Eu 813/2013
ErP Data - EU 813/2013 Supplier name: Italtherm City Plus City Plus Model(s): Contact details: Italtherm Srl – Via Salvo D'Acquisto, 10 – 29010 Pontenure (PC) – Italy 24 HE 30 HE ErP Data - EU 813/2013 Symbol Unit Value Value Condensing boiler... -
Page 42: Technical Data
Technical data TECHNICAL DATA City Plus 24 HE City Plus 30 HE U.M. Gas type G30/G31 G30/G31 CE certification 0476 CQ 2073 0476 CQ 2073 Class 2H3+ 2H3+ Type C12 - C32 - C42 - C52 - C62 - C82 - C92 Working temperature range (min÷max) °C 0 ÷... - Page 43 TECHNICAL DATA (cont'd) City Plus 24 HE City Plus 30 HE U.M. Gas type G30/G31 G30/G31 Max system temperature °C Anti-freezing function temperature on / off °C 5 / 30 5 / 30 HOT WATER Flow rate at 25°C temp. rise l/min 15 .0 17 .3...
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Page 44: Boiler Internal Components
Boiler internal components 16 15 Flue safety thermal switch 13 By-pass 1.1 Flue safety thermal switch - manual reset 14 Gas valve button with protection screw cap 15 Motorized 3-way valve Flue pressure switch 16 DHW temperature sensor 17 System pressure gauge Flue hood 18 Priority flow switch (with filter) Expansion Vessel... -
Page 45: Electrical Diagram
Electrical diagram BIANCO BIANCO 2-NC BIANCO 1-NO 2-NC ROSSO ARANCIO ARANCIO ROSSO 3-NO VERDE VERDE NERO NERO GRIGIO 14.1 GRIGIO ROSSO NERO NERO GIALLO-VERDE GIALLO-VERDE BIANCO BIANCO 43 44 45 MARRONE 51 52 60 61 62 63 64 65 14.2 43 44 45 61 62 63 64 65 51 52... -
Page 46: Hydraulic Diagram
Hydraulic diagram This diagram is for informa- tion only. To make boiler hydraulic connection either see "Dimensions and con- nections" on page 13 and eventually "Positioning and fastening" on page 16. Flue safety thermal switch 22 Pump Flue pressure switch 23 Loss of water pressure switch 24 Temperature Sensor, system flow Flue hood... -
Page 47: Addendum
Addendum Outdoor Sensor Kit Installation and setting The Outdoor Sensor manages automatically the CH flow temperature** as a function of the outdoor temperature, thus avoiding the user to adjust it manually. This function is also named "shifting tempera- ture" . that's the temperature of the heating elements. -
Page 48: 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 49 Notes Green Heating Technology...
- Page 50 Notes Green Heating Technology...
- Page 51 Notes Green Heating Technology...
- Page 52 Green Heating Technology www.italtherm.it ITALTHERM Srl Via S. D’Acquisto, 10 • 29010 Pontenure (PC) - IT Tel. +39.0523.575611 • Fax +39.0523.575600 UNI EN ISO www.italtherm.it • e-mail: info@italtherm.it 9001:2008...
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