Table of Contents
Advertisement
Quick Links
Download this manual
See also:
User Manual
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for COSMOGAS NOVADENS 24
Summary of Contents for COSMOGAS NOVADENS 24
- Page 1 MODELES: NOVADENS 24 - 24B NOVADENS 24C - 24P NOVADENS 34 - 34B NOVADENS 34C - 34P...
-
Page 2: Table Of Contents
Table of contents 1 - General safety warnings.................... 4 1.1 - National installation legislation ....................4 2 - GENERAL INFORMATION ..................5 2.1 - Introduction ..........................5 2.2 - Description of models ....................... 5 2.3 - Manufacturer ..........................5 2.4 - Key to symbols used ......................... 5 3 - MAIN COMPONENTS .................... - Page 3 Table of contents 6.5 - Start-up ........................... 30 6.5.1 - Auto-purging ..........................30 6.6 - Checking and adjusting the gas supply pressure ..............30 6.7 - Checking the comburant air pressure ..................31 6.8 - Checking and adjusting CO2 levels ..................32 6.9 - Adjusting the heating capacity ....................
-
Page 4: General Safety Warnings
If you cannot contact Any optional extras or kit fitted subsequently must be them, call the Fire Brigade. original Cosmogas spares. This appliance must only be used for the purpose it has If you smell pruducts of the combustion been expressly designed for: heating water for closed ... -
Page 5: General Information
All its components can easily control. be separated into similar and Thanks to on-going research completely recyclable parts. carried out by COSMOGAS, this product has been conceived and is considered to be the best in 2.2 - Description of models NOVADENS XXYYYY “... -
Page 6: Main Components
3 - MAIN COMPONENTS 1 - Automatic air vent 12 - Safety relief valve 2 - Air intake and flue gas 13 - Control board discharge fitting (venting system) 14 - Lower cover 3 - NTC7 flue gas sensor 15 - Door to control box 4 - Air drum 16 - Casing 5 - Air/gas mixer... - Page 7 3 - MAIN COMPONENTS 47 - Screw cap for unblocking 21 - Combustion analysis tap 33 - Cable clamp pump 22 - NTC1 boiler temperature 34 - Filling cock 48 - Display sensor 35 - By-pass pipe (optional) 49 - Electric connections board 23 - Burner window 36 - Condensation discharge pipe 50 - Opentherm interface board...
-
Page 8: Functions Of The Appliance
4 - fUNCTIONS Of ThE APPLIANCE Figure 3 - Hydraulic diagram Figure 2 - Hydraulic diagram NOVADENS 24C NOVADENS 24 or 24P NOVADENS 34C NOVADENS 34 or 34P (for settings, see section 5.5) Figure 5 - Hydraulic diagram NOVADENS 24 or 24P... - Page 9 4 - fUNCTIONS Of ThE APPLIANCE Key to figures 2, 3, 4 and 5: 1 = COSMOGAS boiler NOVADENS model 2 = automatic air vent 3 = air intake 4 = flue discharge 5 = sealed combustion chamber 6 = expansion tank...
-
Page 10: Intended Use And Functions Of The Appliance
4 - fUNCTIONS Of ThE APPLIANCE 4.1 - Intended use E- NOVADENS -- “0834”. By means All the boiler versions described of this boiler, a system can be created previously can be connected to a and functions of the for the production of instant domestic room thermostat for the setting of hot water and a heating system the heating. -
Page 11: Characteristic Curves Of Heating System's Residual Head
4 - fUNCTIONS Of ThE APPLIANCE 4.2 - Characteristic curves of heating system’s residual head Each standard boiler is fitted with its own specific circulator pump. The residual head at the boiler connections is shown in graph form in figures 6. On demande, we can supply the boiler with a 7 m head pump (see fig.7). -
Page 12: Installation
5 - INSTALLATION 5.1 - Opening the packaging The appliance is supplied in a box. Open it up following the instructions given on the closing flaps. 5.2 - Dimensions and clearances for installation Leave an area free around the boiler for carrying out installation or maintenance activities, as shown in figure 9. -
Page 13: Supply And Return
6 in the ON position (see There are two possible situations: chapter 7.5). CAUTION!!! COSMOGAS By means of this setting, the boiler will A - the gas type and the supply cannot be held responsible for any... -
Page 14: Assembling The Appliance
5 - INSTALLATION 5.8 - Assembling the appliance Refer to figure 11: place the paper template, provided with the appliance, against the wall; ensure that the template is square with the room; mark holes for the wall dowel plugs and the hydraulic fittings;... -
Page 15: Condensation Discharge
5 - INSTALLATION 5.10 - Condensation discharge The boiler is equipped internally with a trap for the evacuation of condensation (see figure 1, detail 40) and so as to prevent the leakage of combustion products, whose end corresponds with pipe “B” shown in figure 13. This end must be conveyed to another smell-control trap (figure 14, detail “F”) so as to prevent the return of bad smells in the room (the smell-control trap... -
Page 16: Hydraulic Connections For Boiler With Bwr Storage Tank
“B”), so as to safeguard the appliance from any blockage in the domestic water circuit. In order to facilitate installation, a softener may be request to COSMOGAS, with a specific installation kit. Reference of figure 17 A = Box tool’s control... -
Page 17: Electrical Connections: Overview
5 - INSTALLATION 5.14 - Electrical 5.14.1 - Connecting the mains electricity by a three- pole electrical cable with double connections: the power supply insulation and a minimum cross section of 1.5 mm2, resistant to overview cable a minimum temperature of 70°C (feature T). -
Page 18: Choosing The Room Thermostat/Time-Programmable Thermostat
5 - INSTALLATION 5.14.2 - Choosing To connect the cable of the outside remove the boiler casing according temperature sensor, proceed as to the instructions given in section the room 8.2; follows: lay a bipolar electrical cable with a ... -
Page 19: Cr04 Remote Time Control (Optional)
5 - INSTALLATION 5.14.5 - CR04 Once the remote control has been connected, all the room temperature remote time control adjustments and domestic water temperature operations must be (optional) carried out directly on the same. Accordingly, remember to closely The CR04 time control is a room follow the instructions contained on thermostat capable of interacting the CR04 remote control. -
Page 20: Connecting The Boiler To The B70C Type Water Heater (Optional)
The first time the boiler is started up, the anti-Legionnaires cycle is also started after 2 hours of running. 1 COSMOGAS boiler 9 Check valve (to be fitted by 2 B70C type storage tank (on installer) request) -
Page 21: Connecting The Boiler To The Bwr C Type Storage Tank
lay the bipolar cable with a minimum 1.5mm2 section which goes from the boiler to the temperature sensor of the 1 COSMOGAS boiler 9 Cold water inlet storage tank and connect it on the boiler 10 Supply and return for storage to terminals “15”... -
Page 22: Venting Systems
5 - INSTALLATION 5.17 - Venting systems CAUTION!!! All venting systems must be connected in compliance with current national and local standards. CAUTION!!! Under determinate conditions, the temperature of the appliance’s flue gases may reach 110°C. Therefore, use plastic piping capable of resisting this temperature. -
Page 23: Split 80/80Pp" System (Polypropylene)
5 - INSTALLATION 5.17.1 - “Split 80/80PP” system (polypropylene) The standard appliance is not supplied with fittings for connecting flue gas discharge outlets/ air intakes. A special kit is available on request for connecting the boiler to the “split 80/80PP system”, to be installed following figure 23. -
Page 24: Split 80/80Pp" System: Available Accessories
5 - INSTALLATION 5.17.2 - “Split 80/80PP” system: available accessories Some of the most commonly used accessories for installing the split system of flue gas discharge/air intake 80/80PP are listed below; a much wider range however can be found in the special catalogue: (the number after the code refers to the part in the following drawings) 62617053 - No. -
Page 25: Split 80/80Pp" System: Installation Examples
5 - INSTALLATION 5.17.3 - “Split 80/80PP” system: installation examples Two installation examples can be seen in figure 26: - discharge into chimney with collection of condensation at base of the chimney. The horizontal part of the flue gas discharge side must be pitched towards the “T”... -
Page 26: Coaxial 60/100Pp" System (Polypropylene)
5 - INSTALLATION 5.17.4 - “Coaxial 60/100PP” system (polypropylene) The standard appliance is not supplied with fittings for connecting flue gas discharge outlets/air intakes. A special kit is available on request for connecting the boiler to a “coaxial 60/100PP” system, to be installed as shown in figure 28, where the vertical discharge is shown on the left under letter “A”... -
Page 27: Coaxial 60/100 Pp" System: Available Accessories
5 - INSTALLATION 5.17.5 - “Coaxial 60/100 PP” system: available accessories The following accessories are available, on request, for installing the flue gas discharge/air intake system 60/100: (the number after the code refers to the part in the following drawings) 62617255 - No. -
Page 28: Coaxial 60/100Pp" System: Installation Examples
5 - INSTALLATION 5.17.6 - “Coaxial 60/100PP” system: installation examples When a coaxial discharge is installed (see figure 31), whether it is vertical or horizontal, it is indispensable to slope the discharge pipe upwards so as to get the condensation to flow inside the boiler. figure 31 - Installation examples for the coaxial pipe... -
Page 29: Operating
6 - OPERATING 6.1 - Operating from the central opening (flue remove the tube previously gas discharge), slowly pour in connected and check that there are Before starting the appliance up, it is approximately 100 cm3 (a glass full) no water leakages. -
Page 30: Gas Type Indicated For The Boiler
6 - OPERATING 6.3 - Gas type the minimum running temperature the table in section 9 at the end of (see section 7.4). the manual. indicated for the If the pump indicator is illuminated but the pump (see figure 1 detail “39”) is If the supply pressure does not fall within boiler not running, try releasing it using the... -
Page 31: Checking The Comburant Air Pressure
6 - OPERATING 6.7 - Checking the comburant air pressure Since the boiler has a factory-set air/ gas ratio, the pressure of the gas at the burner is controlled indirectly; the comburant air pressure is checked inside the boiler and must correspond with that shown in the table in section 9 under the item “Comburant air pressure”... -
Page 32: Checking And Adjusting Co2 Levels
6 - OPERATING 6.8 - Checking press the button to return and adjusting CO2 the boiler to normal operating conditions. levels The levels of CO2 (carbon dioxide) CAUTION!!! During this phase, in the boiler, under normal operating if the power supplied to the boiler is conditions, and below an altitude of much higher than the power absorbed 1,000m, are given in the table in section... -
Page 33: Adjusting The Heating Capacity
6 - OPERATING 6.9 - Adjusting the heating capacity The boiler has been constructed with an “intelligent” conception of the adjust- ment of the output heating, in relation to the effective requirement of the system, therefore it does not need adjusting. However, during the bringing onto stream BOILER MODEL of the system, the boiler runs for a brief... -
Page 34: Use
7 - USE 7.1 - Adjusting the 7.3 - Thermostatic 7 . 4 . 1 - C l i m a t i c domestic hot water adjustment adjustment: on which The adjustment of the domestic hot water At the factory, the boiler is set with the systems? temperature (when present) is carried parameter at 00, or rather the... -
Page 35: Climatic Adjustment: Precautions When Making Adjustments
7 - USE 7 . 4 . 2 - C l i m a t i c full running conditions and in its response requirements, just use control “31” as to the external temperature changes. A per figure 1, in order to raise or lower a d j u s t m e n t : high “Reaction”... - Page 36 7 - USE OA = Inclination of the line Ob = Minimum heating temperature Oc = Maximum heating temperature br = “fix point” of the angle External temperature (°C) fulcrum of the line b = parallel shift of the line (possible using the command on the panel) External temperature (°C) figure 38 -...
-
Page 37: Boiler Settings (Switches)
7 - USE 7.5 - Boiler settings (SwITChES) With just one control board (detail “13” of figure 1) it is possible to set the appliance in various different architectures. For this purpose, within the control board a series of electrical switches (see figure 21, detail “A”) is envisaged, identified by the wording SWITCHES, whose positioning (ON or OFF) determines the type of functioning of the appliance. -
Page 38: Users' Menu
7 - USO 7 . 1 1 “ U s e r s ’ Press in order to confirm the menu” amended data and pass onto the next parameter. When entering the “Users’ menu”, the Once you have reached the end of the display “48”... -
Page 39: Installers' Menu
7 - USO 7.12 - “Installers’ menu” CAUTION!!! Changing these parameters could cause the boiler and therefore the system to malfunction. for this reason, only a technician who is sensitive to and has in-depth knowledge of the appliance can change them. The boiler’s micro-processor makes this menu of parameters available to the technician for the analysis of... - Page 40 7 - USE PARAMETER DESCRIPTION INfORMATION ON DISPLAy “48” Of fIGURE 1 Value in °C (cannot be changed) Boiler and heating supply tempe- rature, gauged by NTC1 sensor Domestic hot water tempera- Value in °C (cannot be changed) ture, gauged by NTC2 sensor Domestic cold water (or storage Value in °C (cannot be changed) tank) temperature, gauged by...
-
Page 41: Diagnostics
7 - USE 7.13 - Diagnostics During the routine functioning of the appliance, the display “48” as per figure 1, continually shows the operating status of the appliance, via the following indications: PARAMETER DESCRIPTION RIGhT-hAND DISPLAy Boiler temperature (°C) Boiler in stand-by mode or pause (no request for heating or domestic hot water) Boiler temperature (°C) Anti-freeze function active... -
Page 42: Diagnostics: "L" Lock-Outs
7 - USE 7.13.1 - Diagnostics: “L” lock-outs “L” Solutions Lock-out description Controls Code No flame detected after three Check: Gas supply pressure If the supply pressure is incorrect, it is subsequent ignition attempts (see section 6.6), sparks necessary to take steps upstream from the on ignitions electrodes (see appliance in order to restore it;... - Page 43 7 - USE Controls Solutions “L” Code Lock-out description Temperature difference Check that the electrical If one of the two or both sensors do not have between NTC1 and NTC6 element of the two sensors the correct values, it is necessary to replace complies with the graph in them;...
- Page 44 7 - USE “E” Lock-out Controls Solutions Code description N T C 1 b o i l e r t e m p e r a t u r e Check that the electrical element If the electrical element of the probe does not sensor circuit short-circuited.
-
Page 45: Maintenance
8 - MAINTENANCE 8.1 - General 8.2 - Disassembling warnings t h e c a s i n g a n d accessing internal CAUTION!!! Maintenance components operations must only be carried In order to disassemble the casing, out on the boiler by qualified proceed as follows (refer to figure 32): technicians. -
Page 46: Cleaning Of The Condensation Collecting Trap
8 - MAINTENANCE 8.3 - Cleaning of the condensation collecting trap In order to correctly clean the conveying and collection trap for the condensation produced by combustion, it is necessary to proceed as follows (refer to figures 42 and 43): ... -
Page 47: Cleaning The Burner And Primary Heat Exchanger (Flue Gas Side)
8 - MAINTENANCE 8.4 - Cleaning the burner and primary heat exchanger (flue gas side) To correctly clean the burner and the heat ex- changer (flue gas side), proceed as follows: access the internal components following instructions in section 8.2; ... -
Page 48: Replacement Of The Pump Motor
8 - MAINTENANCE 8.7 - Replacement of the pump motor If it becomes necessary to replace the circulator pump, proceed as follows (refer to figure 49): empty the water from the heating circuit, following the procedure indicated in section 8.10; ... -
Page 49: Dismantling The 3-Way Valve
8 - MAINTENANCE 8.9 - Dismantling the 3-way valve The 3-way valve (detail “F” of figure 52) inverts the flow of water produced by the primary heat exchanger, to the heating circuit or the secondary heat exchanger for the production of d.h.w.. Should it become necessary to replace it, proceed as follows (refer to figures 51, 52 and 53):... -
Page 50: Draining The Heating Side Of The Appliance
8 - MAINTENANCE 8.11 - Draining the 8.15 - Minimum and 8.10 - Draining the domestic side of the maximum output heating side of the It is possible to force the functioning appliance appliance of the appliance to its minimum or To empty the boiler from the domestic To empty the boiler from the heating maximum output, both during the heating... -
Page 51: Water Temperature Gauging Sensor
8 - MAINTENANCE 8.17 - water temperature gauging sensor A number of sensors, which gauge the temperature, are positioned on the boiler’s heat exchanger. The electrical resistance existing between the two contacts of the sensor must correspond with the values shown in figure 55. -
Page 52: Functional Wiring Diagram
8 - MAINTENANCE 8.19 - functional wiring diagram - Command and control board C R - R e m o t e c o n t r o l (optional) C R04 - R emote control (optional) EA - Ignition electrode ER - Detector electrode F1 - Power supply fuse 1.6A F2 - Storage tank pump fuse... -
Page 53: Multiwire Wiring Diagram
8 - MAINTENANCE 8.20 - Multiwire wiring diagram Key - see key to figure figure 58 - Multi-wire wiring diagram... -
Page 54: Technical Features
9 - TEChNICAL fEATURES MODEL NOVADENS 24 NOVADENS 34 Country of destination GB-IE GB-IE Type C13;C33;C43;C53;C63;C83 Category II2H3P II2H3P EC type certificate (PIN) 0694BR1222 0694BR1222 Nominal input heat “Q”= 25,0 34,8 Minimum input heat Nominal output heat (80/60) “P” =... -
Page 55: Ec Compliance Declaration
10 - EC COMPLIANCE DECLARATION The undersigned company COSMOGAS S.r.L., with registered offices in Via L. Da Vinci 16 - 47014 Meldola (FC) ITALY, DECLARES under its own exclusive liability that the product: wARRANTy No GAS BOILER MODEL MANUfACTURE DATE... - Page 56 COSMOGAS s.r.l. Via L. da Vinci 16 - 47014 MELDOLA (FC) ITALY info@cosmogas.com www.cosmogas.com...
Need help?
Do you have a question about the NOVADENS 24 and is the answer not in the manual?
Questions and answers