Unical ALKON 24 R Installation And Servicing Manual
Hide thumbs
Also See for ALKON 24 R:
- Installation and servicing manual (48 pages) ,
- User operating instructions manual (8 pages)
Related Manuals for Unical ALKON 24 R
Summary of Contents for Unical ALKON 24 R
- Page 1 ALKON 18 R 24 R - 24 C 28 R - 28 C 35 R - 35 C INSTALLATION SERVICING MANUAL 00332495 -4 edition - 02/2009 English...
-
Page 2: Table Of Contents
Failure to follow the instructions indicated in this manual, which is supplied with the boiler, could cause injury to persons, animals or damage to property. UNICAL shall not be held liable for any injury and/or damage. CONTENTS 1 GENERAL INFORMATION .................................... -
Page 3: General Information
Any other use of this appliance will be considered improper. UNICAL declines any responsibility for any damages or injuries caused by an improper use; in this case the risk is completely at the user’s responsibility. In order to use the appliance according to the foreseen scopes it is necessary to carefully follow the instructions indicated in this manual. -
Page 4: Safety Warnings
Servicing or repairs of the appliance must be carried out by UNICAL authorised service technicians; UNICAL recommends drawing up a service contract. Bad or irregular servicing could compromise the safe operation of the appliance, and could cause injury to persons, animals or damage to property for which UNICAL shall not be held liable. -
Page 5: Data Badge
General information The essential requirements of the Directive regarding electromagnetic compatibility 1.6 - DATA BADGE (Directive 89/336/CEE) CE Marking The essential requirements of the Efficiency Directive (Directive 92/42/CEE) The CE marking documents that the boilers satisfy: The essential requirements of the low voltage Directive (Directive 73/23/CEE) The essential requirements of the Directive regarding gas appliances (Directive 90/396/CEE) ®... -
Page 6: General Warnings
Please read carefully the instructions contained in this manual Any repairs must be carried out solely by Unical authorized as they provide important indications regarding the safe technicians and using only or iginal spare par ts. Non- installation, use and servicing of this appliance. -
Page 7: Technical Features And Dimensions
Safety high limit thermostat; ALKON 18 R with an output of 18 kW Flow temperature sensor; ALKON 24 R with an output of 24 kW Return temperature sensor; ALKON 28 R with an output of 28 kW DHW temperature sensor (only on the ALKON C model);... -
Page 8: Main Components
Technical features and dimensions 2.3 - MAIN COMPONENTS ALKON R ALKON C 22 21 19 18 1. By-pass 15. Diverter valve 2. Plate heat exchanger 16. Pump 3. Gas valve 17. Central heating circuit safety valve 4. Aluminium heat exchanger/condenser 18. -
Page 9: Boiler Water Circuit
Technical features and dimensions 2.4 - BOILER WATER CIRCUITS ALKON R By-Pass Gas valve Central heating circuit safety valve Low water pressure switch Condensate drain siphon Flow temperature sensor Return temperature sensor Safety thermostat Aluminium heat exchanger/condenser 10. Burner 11. Air vent 12. -
Page 10: Performance Data According To The Standard Uni 10348
Technical features and dimensions 2.5 - PERFORMANCE DATA ACCORDING TO STANDARD UNI 10348 For information regarding the adjustment of: INJECTORS - BURNER PRESSURES – DIAPHRAGMS – OUTPUTS – GAS CONSUMPTIONS please refer to the paragraph BURNER PRESSURE ADJUSTMENT. ALKON 18 R 24 R 24 C 28 R... -
Page 11: Instructions For The Installer
Instruction for the installer INSTRUCTIONS FOR THE INSTALLER 3.1 - GENERAL WARNINGS WARNING! In rooms where aggressive vapours or dust is present the appliance must operate WARNING! independently from the air present in the This boiler has to be destined for the use boiler’s location room! for which it has been expressively designed for. -
Page 12: Standard Codes For Installation
UNICAL refuses all liability for injury to persons, animals or damage to property deriving from not having respected the above mentioned recommendations. In the packaging, in addition to the boiler, you can also find the... -
Page 13: Boiler Location
Instruction for the installer 3.4 - BOILER LOCATION Every appliance is supplied with a steel “Wall mounting template” which facilitates the connection of the gas and water feed pipes when laying out the hydraulic system and before When selecting the position for the installation of the boiler installing the boiler. -
Page 14: Dimensions For Connecting The Alkon 28 To The External Storage Tank Kit Dsp120
Instruction for the installer HOW TO POSTION THE WALL MOUNTING TEMPLATE ON POSITIONING SYSTEM PIPEWORK TO THE WALL CONNECTIONS, CONDENSATE DRAIN AND PRESSURE RELIEF VALVE 18 kW 70 mm (18 kW) 50 mm (24-28 kW) 37 mm (35 kW) 24/28 kW 35 kW Note: The pipework for the condensate drain point... - Page 15 Instruction for the installer Dimensions for the connection of the ALKON R 18 to the external storage tank kit DSP 110 62,5 62,5 97,5...
-
Page 16: Boiler Installation
The connection between the boiler and chimney/flue outlet can be made only after this verification has been carried out. As a safety measure against gas leaks, Unical 3.6 - GAS CONNECTION recommends installing a surveillance and... -
Page 17: Central Heating Connections
Instruction for the installer 3.7 - CENTRAL HEATING CONNECTIONS The boiler is fitted with an automatic BY-PASS (differential valve WARNING! with a flow rate of about 150 l/h) which always ensures a Before installing the boiler we recommend minimum water flow rate to the heat exchanger even if, for that the system is flushed out with a suitable example, all the thermostatic valves fitted on the heating system product in order to eliminate any metallic... - Page 18 Instruction for the installer BOILER CIRCULATION PUMP Graph - Water flow rate/ available head for installation – ALKON 18 kW 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 Flow rate (Q) l/h BOILER CIRCULATION PUMP Graph – Water flow rate/ available head for installation– ALKON 24 kW 1000 1050 1100 1150 1200 1250 1300 1350 1400 Flow rate (Q) l/h...
-
Page 19: Dhw Connections
Instruction for the installer BOILER CIRCULATION PUMP Graph – Water flow rate/ available head for installation– ALKON 35 kW 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 Flow rate (Q) l/h The pressure in the system must be between 1 3.8 - DOMESTIC HOT WATER CONNECTIONS and 3 bar (if the pressure is higher fit a reducing (Model “C”) -
Page 20: Examples Of System Pipework Connections
Instruction for the installer 3.9 - EXAMPLES OF SYSTEM PIPEWORK CONNECTIONS CONNECTION WITH STRAIGHT PIPES CONNECTION WITH STRAIGHT PIPES + ON-OFF VALVES 00360724 Straight pipework kit (supplied with the boiler) 00360724 (supplied with the boiler) 00360682 (optional extra) CONNECTION WITH STRAIGHT PIPES + BICONIC NIPPLES 00360724 Straight pipework kit supplied with the boiler) 00361382 Telescopic pipes connection kit (optional extra) -
Page 21: Condensate Drain
Instruction for the installer 3.10 - CONDENSATE DRAIN During the combustion process the boiler produces condensate which, through the “A” pipe, flows into the siphon. The condensate which forms inside the boiler has to be routed into an adequate drain by means of the pipe “B”. DANGER! Before commissioning the appliance fill the siphon and check the correct drainage of the... -
Page 22: Flue Outlet Installation
The two terminals must not be fitted on to two local and national Standards (refer to Standard UNI-CIG opposite walls. 7129, point 4 and UNI-CIG point 5) We recommend using only original UNICAL flue outlet systems. Damages caused by installation errors and for non-observance of the instructions given by the same manufacturer will invalidate all the supplier’s contractual or extra contractual... - Page 23 Instruction for the installer HORIZONTAL FLUE OUTLET WITH CONCENTRIC DUCTS Ø 60/100 mm Type C13 Important: the outlet/inlet flue has to The minimum allowable length of the horizontal concentric have a minimum inclination of 3% pipes is of 0,75 metres. towards the top in the outlet direction, The maximum allowable length of the horizontal concentric so as to enable the collection of any...
- Page 24 Instruction for the installer HORIZONTAL FLUE OUTLET WITH CONCENTRIC DUCTS D• 80/125 mm Type C13 Important: the outlet/inlet flue has to The minimum allowable length of the horizontal concentric have a minimum inclination of 3% pipes is of 0,75 metres. towards the top in the outlet direction, The maximum allowable length of the horizontal concentric so as to enable the collection of any...
- Page 25 Instruction for the installer FLUE OUTLET WITH SEPARATE DUCTS D• 80 mm The maximum pressure loss permitted, independently from the type of installation, must not exceed the value of 100 Pa. 37 (35 kW) 50 (24 / 28 kW) 70 (18 kW) Ø...
- Page 26 5,5 Pa; - For the vertical flue outlet duct Ø 80 L=1 the pressure loss is of 8 Pa. Note: These values refer to flue systems made with original UNICAL non flexible and smooth pipes. KIT 5750C KIT 5760C...
- Page 27 10 Pa; - For the vertical flue outlet duct Ø 80 L=1 the pressure loss is of 8 Pa 00360353 Note: These values refer to flue systems made with original UNICAL non flexible and smooth pipes. 00360352 00360355 00360351...
-
Page 28: General Warnings
UNICAL refuses responsibility for any damages arising from failure to earth the boiler correctly. It is necessary that a qualified technician verifies that the Access to the electrical terminal block and external electrical system is adequate to the appliance’s maximum... -
Page 29: Outdoor Sensor Connection
Instruction for the installer Outdoor sensor connection (optional) Subsequently we have to make the maximum flow temperature correspond to the minimum external temperature by setting the Otc parameter (outdoor sensor set-point) DANGER! Switch off and disconnect the electricity supply before carrying out any operations on the electrical parts. -
Page 30: On-Off Digital Room Controller Connection
1L 2N Modulating RT/OT digital room controller connection (optional) WARNING! The modulating room controllers must be supplied by Unical. RT/OT DANGER! Switch off and disconnect the electricity supply before carrying out any operations on the electrical parts. -
Page 31: Layout Of The Electrical Connection For Zone Control Systems
Instruction for the installer Layout of the electrical connections for zone control systems External voltage line 1L 2N Room thermostat (high temperature zone controller) Digital room controller (low temperature zone controller) Boiler flow Low temperature zone High temperature zone Note: The terminal connections 3 and 4 in- dicated in the diagram refer to the Boiler return valve’s internal limit stop, when the... -
Page 32: Wiring Diagrams
Instruction for the installer 3.13 - WIRING DIAGRAMS FUNCTIONAL FLOW WIRING DIAGRAM ALKON 24/28/35 C E.ACC./RIL. TRASF. BROWN ACC. LIGHT BLUE YELLOW/GREEN BROWN BLACK ORANGE BLUE LIGHT BLUE WHITE GREEN WHITE BROWN 230 V - 50 Hz To the general bipolar switch (installer) WHITE... -
Page 33: Functional Flow Wiring Diagram For Alkon 18/24/28/35 R
Instruction for the installer FUNCTIONAL FLOW WIRING DIAGRAM ALKON 18/24/28/35 R E.ACC./RIL. TRASF. BROWN ACC. LIGHT BLUE YELLOW GREEN BROWN BLACK ORANGE BLUE LIGHT BLUE WHITE (preset) GREEN WHITE BROWN 230 V - 50 Hz To the general bipolar switch (installer) WHITE WHITE... -
Page 34: Jumper Installation On The Modulating Board
Instruction for the installer JUMPER LOCATION JP1: NIGHT REDUCTION The “Night reduction” function is enabled if the jumper is linked between terminals 1 and 2. The jumpers, fitted on to the modulation board, have the purpose of determining several indispensable functions for The “Night reduction”... -
Page 35: Filling The System
NOTE! UNICAL refuses all liability for injury to If the boiler has not been fired for a long period persons, animals or damage to property the pump could be jammed. Before firing the... -
Page 36: Initial Lighting
LIGHTING SHUTTING DOWN to property. UNICAL shall not be held liable PROCEDURES for any injury and/or damage. For lighting and shutting down the boiler refer to the “USER’S Before lighting the boiler check that: ”... -
Page 37: Burner Pressure Adjustment
ANTICLOCKWISE direction in order to increase WARNING! All the instructions indicated below are for the exclusive use of qualified UNICAL service technicians or installers. All the boilers leave the factory already calibrated and tested. If it is necessary to change the... - Page 38 Instruction for the installer If necessary correct the value by turning the adjustment screw C) COMPLETION OF THE BASIC “B” in a CLOCKWISE direction to increase the value and in ADJUSTMENTS an ANTICLOCKWISE direction in order to decrease it. - Check the C0 values at the minimum and maximum output.
- Page 39 Instruction for the installer INJECTORS – PRESSURES Check the C0 levels often, especially at low output Gas type Supply Collector Mixer Flue outlet Min gas Max gas Start-up p r e s s u r e Diaphragm levels (%) speed injector diaphragm consum-...
-
Page 40: Variation Of Output Range
01 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Maximum imput ALKON 24 R - C (B) Output range 01 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40... - Page 41 Instruction for the installer ALKON 28 R - C (C) Output range 01 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Maximum imput ALKON 35 R - C (D) Output range 01 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Maximum imput...
-
Page 42: Servicing Schedule
3 mm (for example safety devices or power switches) and ensure yourself that it cannot be accidentally reinser- ted. For this reason UNICAL recommends that a servicing contract Close the on-off valve fitted upstream of the boiler. should be made with our authorized After Sales Service If necessary, and in function of the type of work to be car- Assistance Centre. - Page 43 Inspections and servicing schedule Check Check every Recommended servicing operations annually 2 years Examine all water seal components for soundness Test for gas soundness Check the water and gas safety devices Clean the combustion circuit heat exchanger/body Clean the burner and check the ignition efficiency Clean the fan Check efficiency of fan’s operation Check the gas flow rate and eventual gas adjustment...
- Page 44 Inspections and servicing schedule IDENTIFICATION TYPE OF BURNER ADOPTED On the technical data plate, at the voice (5) S.N° (page 5) 08A.... 08U.... the third figure identifies the type of burner during regulation stick to the values indicated in the table on page 35. ALKON - Burner type “A”...
-
Page 45: Fault Codes
Codes fault FAULT CODES The boiler is fitted with an integrated diagnostic readout which, These codes are divided into the following 3 groups: in case of malfunction, consents the immediate individuation group: they are signalled but boiler operation is normal. of the type of fault, thanks to the combination of several LEDs group: the burner is automatically switched off. - Page 46 Codes fault CODE DISPLAYED ON Lack of water THE DIGITAL ROOM Description: CONTROLLER Insufficient water pressure and subsequent intervention of the 08 08 08 08 08 minimum water pressure switch. CODE DISPLAYED ON Frost THE DIGITAL ROOM Description: CONTROLLER 09 09 09 09 09 The heat exchanger is frozen.
- Page 48 - info@unical-ag.com The Unical declines every responsibility for the possible inaccuracies if owed to errors of transcript or press. Also reserves the right to bring those changes that it will hold necessary to it own products or profits, without jeopardizing its...
Need help?
Do you have a question about the ALKON 24 R and is the answer not in the manual?
Questions and answers