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Summary of Contents for Biasi Activ A 18S
- Page 1 Wall hung, fanflue, roomsealed, high efficiency gas boiler User manual and Installation instructions ActivA Models G.C. Appl. No. Activ A 18S 41-583-11 Activ A 25S 41-583-12 Activ A 30S 41-583-13...
- Page 2 Congratulations on your choice. ActivA are condensing high effi ciency sealed chamber fan fl ue gas boilers. They are fully electronically controlled and have electronic ignition. The materials they are made of and the control systems they are equipped with give you safety, a high level of comfort and energy savings to allow you to get the greatest benefi...
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Page 3: Using The Boiler
Remember that... The manual must be read thoroughly, so that you will be able to use the boiler in a safe and sensible way; must be carefully kept. It may be necessary for reference in the fu- ture. The lighting up must be carried out by competent and responsible engineer. The manufacturer •... - Page 4 Safe handling of substances Biasi products are manufactured in accordance with ISO 9001 and do not, and will not, contain any hazardous materials or substances such as asbestos, mercury or C.F.C.’s. The appliance packaging does not contain any substances, which may be considered a hazard to health.
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Page 5: Installing The Boiler
Known hazards - Some people can suffer reddening and itching of the skin. Fibre entry into the eye will cause foreign body irritation, which can cause severe irritation to people wearing contact lenses. Irritation to respiratory tract. Precautions - Dust goggles will protect eyes. People with a history of skin complaints may be particularly susceptible to irritation. - Page 6 If you are in any doubts as to the installation or operation of the boiler please read the instruction manuals thoroughly and then if necessary contact Biasi UK for advice and as- sistance.
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Page 7: Table Of Contents
7.13 Checking the ignition device....62 Technical data Activ A 18S ....24 7.14 Checking the fl... -
Page 8: Appliance Description
APPLIANCE DESCRIPTION APPLIANCE DESCRIPTION Overview Isolation valves The model and serial number of the boiler are printed on bottom right side. Fig. 1.2 Gas supply label Fig. 1.1 C.h. circuit pressure gauge C.h. fl ow valve Controls panel Gas inlet valve House for possible time switch C.h. -
Page 9: Controls Panel
APPLIANCE DESCRIPTION Controls panel Fig. 1.3 Reset/Stand-by/Winter key C.h. temperature reduce key C.h. temperature increase key LCD display RESET that takes all parameters back to the factory value occurs only by setting "parameter 08=04". Reset is displayed by switch on of all symbols present on the dis- play. -
Page 10: Lcd General Features
APPLIANCE DESCRIPTION FUNCTION LCD general features Faulty pump or primary For the boiler technical informations refer to Er 14 temperature above the section "TECHNICAL INFORMATION" 105°C to page 20 . Faulty primary circuit Er 04 (no water or absence of fl ow) Faulty fan control Er 05 system... - Page 11 APPLIANCE DESCRIPTION FUNCTION Boiler in anti-freeze phase (bP fl ashing + temperature fl ashing) Boiler in antifrost phase (AF fl ashing + temperature fl ashing) Set c.h. (all other symbols are disabled) Pump activated for the post-circulation phase (Po fl ashing + tem- perature fl...
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Page 12: Instructions For Use
Installer or an Approved Engineer. Warnings This appliance is provided with a built in Biasi UK Ltd support the Benchmark anti-freeze system that operates the boiler initiative. The Benchmark Log Book is when the temperature is below 5 °C. -
Page 13: Ignition
INSTRUCTIONS FOR USE If you experience any diffi culty with the operation of the boiler, switch off the boiler immediately at the fused spur iso- lation switch and contact your Installer Stand-by or an approved Service Engineer. Air introduced into the boiler during this fi ll- ing process will vent through the automatic °C Winter... -
Page 14: Extinguishing
INSTRUCTIONS FOR USE about 25°C to a maximum of about 85°C. c.h. water fl ow temperature. The Press one of the two keys once to display symbol fl ashes ( Fig. 2.8 ). the "set" value. Press again to access the modifi... - Page 15 INSTRUCTIONS FOR USE Fig. 2.9 Close position Fig. 2.11 • If necessary, empty the hydraulic circuits see section "Emptying the c.h. system" to Fig. 2.10 page 70 . If a long period of inactivity is envisioned: • Switch off the electricity supply to the boil- er, by means of the fused spur isolation switch;...
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Page 16: Useful Advice
USEFUL ADVICE USEFUL ADVICE The anti-freeze function is also activated with the boiler in stand-by ( Fig. 3.2 ). Central Heating For reasonably economical service install a room thermostat. Never shut off the radia- tor in the area where the room thermostat is installed. -
Page 17: External Cleaning
USEFUL ADVICE advised to have the following checks car- ried out: • condensing heat exchanger • burner; • exhaust fume duct and fl ue; RESET • pressurisation of the expansion tank; • fi lling up of the central heating circuit; •... -
Page 18: Displaying In Info Mode
USEFUL ADVICE Water comes out of the pressure relief valve Check on the pressure gauge that the pres- sure in the central heating circuit is not close to 3 bars. In this case, temperature rise in the circuit can cause the pressure relief valve to open. -
Page 19: Remote Anomaly Code
USEFUL ADVICE Anomaly Code Lack of burner ignition Safety thermostat lockout General lockout Faulty primary circuit (no water or absence ol fow) Faulty fan control system Faulty c.h. temp. probe NTC Faulty external temp. probe Fig. 3.5 Faulty fl ue temp. probe NTC Flue probe intervention lockout Flame detection error No circulation, of faulty... -
Page 20: Technical Information
TECHNICAL INFORMATION TECHNICAL INFORMATION Overview Fig. 4.1 - 20 -... -
Page 21: Main Diagram
TECHNICAL INFORMATION Main diagram Fig. 4.2 5 C.h. fl ow valve Safety thermostat 6 Gas inlet valve Flame-detecting electrode 7 C.h. return valve Air manifold 8 Condensate drain pipe C.h. pressure relief valve 9 Main circuit drain valve Automatic airpurger valve Flue temperature probe NTC Pump C.h. - Page 22 TECHNICAL INFORMATION Gas valve inlet test point Control box containing: External temperature probe terminal block, remote terminal block, d.h.w tank terminal block, power supply terminal block, external controls terminal block Primary circuit pressure switch Condensate trap 31 Air box (air/gas mixer) Ignition electrode Burner C.H.
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Page 23: Hydraulic Specifi Cations
fl ow densing primary exchanger. rate. The by-pass is calibrated to a differential pressure of about 0.3-0.4 bar. Model Activ A 18S Pression (bar) Expansion vessel 0,60 0,54 Note: this boiler is designed for opera-... -
Page 24: Technical Data Activ A 18S
TECHNICAL INFORMATION Technical data Activ A 18S Heat input Central heating 18,0 Min/Max fl ow temperature °C 25 - 85 Nominal net settings* BTU/h 61413 20,0 Maximum pressure Nominal gross BTU/h 68169 Minimum pressure Minimun net BTU/h 20130 Available head (in 1000 l/h) - Page 25 TECHNICAL INFORMATION Gas rate maximum Flue gas fi gures Natural G20 1,90 Nominal heat input (A) (E) 18,0 Propane G31 kg/h 1,40 content with gas G20 9,3 - 9,9 Gas rate minimum content with gas G20 Natural G20 0,62 CO content with gas G20 Propane G31 kg/h 0,46...
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Page 26: Technical Data Activ A 25S
TECHNICAL INFORMATION Technical data Activ A 25S Heat input Central heating 25,0 Min/Max fl ow temperature °C 25 - 85 Nominal net settings* BTU/h 85297 27,8 Maximum pressure Nominal gross BTU/h 94679 Minimum pressure Minimun net BTU/h 21836 Available head (in 1000 l/h) Minimun gross 0,33 BTU/h... - Page 27 TECHNICAL INFORMATION Gas rate maximum Flue gas fi gures Natural G20 2,65 Nominal heat input (A) (E) 25,0 Propane G31 kg/h 1,94 content with gas G20 9,2 - 9,8 Gas rate minimum content with gas G20 Natural G20 0,68 CO content with gas G20 Propane G31 kg/h 0,50...
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Page 28: Technical Data Activ A 30S
TECHNICAL INFORMATION Technical data Activ A 30S Heat input Central heating 30,0 Min/Max fl ow temperature °C 25 - 85 Nominal net settings* BTU/h 102356 33,3 Maximum pressure Nominal gross BTU/h 113615 Minimum pressure Minimun net BTU/h 25248 Available head (in 1000 l/h) Minimun gross 0,33 BTU/h... - Page 29 TECHNICAL INFORMATION Gas rate maximum Flue gas fi gures Natural G20 3,17 Nominal heat input (A) (E) 30,0 Propane G31 kg/h 2,33 content with gas G20 9,2 - 9,8 Gas rate minimum content with gas G20 Natural G20 0,76 CO content with gas G20 Propane G31 kg/h 0,56...
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Page 30: General Requirements
GENERAL REQUIREMENTS GENERAL REQUIREMENTS Location of appliance The appliance may be installed in any room Our Company supports the Benchmark or internal space, although particular atten- initiative. The Benchmark Log Book is tion is drawn to the requirementsof the cur- located at the back of this manual and rent I.E.E. -
Page 31: Gas Supply
GENERAL REQUIREMENTS discharges into an other room or space as K From a terminal facing a terminal 2500 an outhouse or lean-to. It is important that L From an opening in the car port the position of the terminal allows a free (e.g. -
Page 32: Air Supply
GENERAL REQUIREMENTS ance with BS 6891 and the complete instal- and insulated to prevent freezing. lation should be tested for tightness. To avoid condensate being trapped: For Ireland (IE), refer to I.S.813.2002. • the drain pipe should be run with a fall of at least 2.5°... -
Page 33: Water Circulation (C.h.)
GENERAL REQUIREMENTS to avoid freezing. Connection of condensate drainage pipe downstream of a sink waste trap Particular attention should be paid to pipes passing through ventilated spaces in roofs and under fl oors. Condensate drain By-pass The appliance includes an automatic by- pass valve which protects the main heat exchanger in case of reduced or interrupted water circulation through the heating system... -
Page 34: Water Treatment
GENERAL REQUIREMENTS 5.10 Electrical supply turn valve, without the approval of the Local Water Authority. Warning, this appliance must earthed. Filling External wiring to the appliance must be A method for initially fi lling the system and carried out by a competent person and be in replacing water lost during servicing must accordance with the current I.E.E. -
Page 35: Installation
INSTALLATION INSTALLATION The electrical wiring must conform with cur- rent Regulations, in particular: Warnings • the boiler must be earthed using the cor- The use of gas appliances is rect bonding clamp. subject to statutory control; it is • a fused spur isolation switch, must be in- essential to observe the current stalled near to the boiler that allows com- regulations and laws in force... -
Page 36: Installing The Bracket
INSTALLATION cleans out the system, but also has an anti- corrosive effect by promoting formation of a protective skin on metal surfaces and neu- tralising gases present in the water. We recommend the use of a suitable uni- versal inhibitory to protect the c.h. system from corrosion. -
Page 37: Overall Dimensions
INSTALLATION Overall dimensions Joints The boiler respects the following dimensions: The boiler uses the following fi ttings: Pipe sizes Ø80 Ø80 Ø80 Functions (o.d) Gas, c.h. return, c.h. fl ow ø 22 Ø100 Pressure relief valve ø 15 Condensate drain ø... -
Page 38: Fitting The Fl Ue System
INSTALLATION pre-selected kit. The horizontal routes of the fl ue pipes must incline about 1.5 degrees (25 mm per me- ter); therefore the terminal must be higher than the intake at the boiler. The single coaxial pipe with the terminal must be fi... -
Page 39: Choice Of Fl U
INSTALLATION CORRECT system for installing INCORRECT system for installing Fig. 6.6 Fig. 6.7 A = air intake A = air intake S = fl ue exhaust S = fl ue exhaust Choice of fl u The fl ue exhaust/air intake can be installing in the mode: Refer to the sheet provided with the pre- selected kit, in separate packaging. - Page 40 0.5 m, whilst the maximum with the aid of extensions must not exceed 10m Restrictor for Activ A 18S - Activ A 25S and 6m for Ac- tiv A 30S. Gasket Vertical fl ue exhaust kit with 90° bend ( Fig.
- Page 41 45° Its maximum height with extension is 10m for Activ A 18S - Activ A 25S and 6m for Ac- tiv A 30S). Bends of Ø 80 mm at 90° and at Fig. 6.11 45° are available that reduce the maximum...
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Page 42: Electric Connection
Extensions and elbows can be added to ex- tend the kit’s length. Maximum equivalent length “a+b” ( Fig. 6.13 ) of 15 metres for Activ A 18S - Activ A 25S and 9 metres for Activ A 30S can be achieved utilising extensions. - Page 43 INSTALLATION Remote External Probe Electric power supply Fig. 6.15 Electric power supply connection • Connect the electric power supply cable Ambient coming from the fused spur isolation switch thermostat to the power supply terminal block of the boiler Fig. 6.16 keeping the same connec- tions for the live (brown wire) and the neutral Fig.
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Page 44: Connecting The Room Thermostat Or Zone Valves
INSTALLATION Allow the cables to exit the boiler by using the relevant cable clamps R ( Fig. 6.18 ). Potential clean contacts of the Ambient Thermostat Fig. 6.19 Room thermostat (230V rating) Fig. 6.18 6.10 Connecting the room thermo- stat or zone valves Use the clamps indicated in Fig. -
Page 45: External Frost Protection
INSTALLATION 6.11 External frost protection The thermostat must be insulation class II ( ) or must be correctly connected to earth. • Connect the frost thermostat between ter- minals 1 and 2 as shown in Fig. 6.23 or Connecting the zone valves controlled Fig. -
Page 46: Connecting A System Boiler To A Cylinder
INSTALLATION 6.12 Connecting a system boiler to a cylinder Two schematic wiring diagrams are given in this section showing two possible ways to connect an external programmer to a mid- position diverter valve to provide independ- ent timed and thermostatic control of heat- ing and hot water. - Page 47 INSTALLATION Cylinder Room thermostat thermostat GRYE Electric supply Room thermostat Frostat terminal block HW ON HW OFF MAINS Programmer 230V a.c. Switched 3 Amp fused, spur Mid- position diverter valve GRYE Room thermostat Cylinder thermostat 10 way junction box MAINS 230V a.c.
- Page 48 INSTALLATION Cylinder Room thermostat thermostat GRYE Electric supply Room thermostat Frostat terminal block HW ON HW OFF MAINS Programmer 230V a.c. Switched 3 Amp fused, spur Mid--- position diverter valve GRYE Room thermostat Cylinder thermostat 10 way junction box MAINS 230V a.c.
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Page 49: Installation Of The External Temperature Probe
INSTALLATION 6.13 Installation of the external Use the clamps indicated in Fig. 6.27 to temperature probe (optional) connect the external probe. The external probe must be installed on the external wall of the building avoiding: • Direct radiation of solar rays. •... -
Page 50: Example Of Hydraulic Plants With Hydraulic Separator
INSTALLATION Do not remove the electric jumper con- Hydraulic plant examples nected on the ambient thermostat termi- nal block between “1 and 3” Fig. 6.27 . Top zone + low temperature zone. The route of the remote control cable must follow the route indicated in Fig. -
Page 51: Commissioning
COMMISSIONING COMMISSIONING the appliance for leaks. Warnings The commissioning of this boiler and system must only be undertaken by a professionally qualifi ed person in ac- cordance with the requirements of the Gas Safety Installation and Use Regula- tions and be approved by Gas Safety. Ensure that the Benchmark Log Book is satisfactorily completed during the com- missioning process. -
Page 52: Condensate Pipe And Traps
COMMISSIONING The fl ushing procedure must be in line with BS7593:2006 Treatment of Water in d.h.w. c.h. Systems. When the installation and second fi ll- ing are completed turn on the c.h. sys- tem and run it until the temperature has reached the boiler operating tempera- ture. -
Page 53: Lighting The Boiler
COMMISSIONING Fig. 7.5 • Press the 11 key for 2 seconds until symbol appears on the display Fig. 7.6 . Fig. 7.3 An alternative, to avoid the removal of the fl ue elbow, pour the water through the fl ue sampling point ( Fig. -
Page 54: Checking The Gas Supply Pressure
"Technical Press the reset key on the boiler control Data" section ( pag. 24 Activ A 18S, pag. panel 11 ( Fig. 7.6 ) to reset its functioning. 26 Activ A 25S and pag. 28 Activ A 30S). -
Page 55: Enabling Functioning Of The External
CO/CO2 (The limits for the boiler is given in "Technical Data" section pag. 24 Activ A 18S, pag. 26 Activ A 25S and pag. Fig. 7.11 28 Activ A 30S: CO2 contents / other fl ue gas fi... -
Page 56: Setting The K Coeffi Cient Of The External Temperature Probe
COMMISSIONING C.h. flow temperature °C K=4 K=3 K=1,5 K=0,5 Fig. 7.12 External temperature °C Fig. 7.14 • Modify the programmed SET by acting on buttons until a setting of 60 is displayed, wait for the number pro- If the boiler is EQUIPED with the remote grammed to fl... - Page 57 COMMISSIONING line in Fig. 7.15 ). Sequence for setting the K coeffi cient • Enter in "programming mode" by pressing keys 11 - 12 - 13 ( Fig. 7.16 ) for 10 seconds at the same time until the letters Pr that al- ternate with code 01 are displayed on the LCD display, indicating that "parameter 01, has been activated ( Fig.
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Page 58: Setting The Pump Post-Circulation
COMMISSIONING follow the trend in relation to the K coeffi - cient set. However, if the ambient temperature is not comfortable, the fl ow temperature of the heating plant can be increased or reduced by ± 15°C by acting on keys 12 (reduce) and 13 (increase) ( Fig. - Page 59 COMMISSIONING at the same time until the letters Pr that al- ternate with code 01 are displayed on the LCD display, indicating that "parameter 01"( Fig. 7.24 ) has been activated. Fig. 7.25 • Press keys 11 and 13 ( Fig. 7.23 ) at the same time until the value of parameter 11 Fig.
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Page 60: Selecting The Reignition Frequency
COMMISSIONING sponds to 1 second. Fig. 7.27 Fig. 7.30 at the same • Press buttons time to enter transparent programming • To exit programming, press button ( Fig. 7.28 ). 7.12 Selecting the reignition fre- quency When the boiler functions in normal on/off heating mode, the minimum time between two ignitions is set at three minutes (re-igni- tion frequency). - Page 61 COMMISSIONING Fig. 7.34 • It is possible to modify parameter 10 by 00=0s to99=600s using keys 12 or 13 (each increase or reduction by a unit on Fig. 7.32 the display corresponds to 6 seconds). • Scroll the various parameters using keys •...
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Page 62: Checking The Ignition Device
COMMISSIONING time to enter transparent programming ( Fig. 7.36 ) Fig. 7.38 • To exit programming, press button Fig. 7.36 • Press buttons to display 7.13 Checking the ignition device the "PM10" program for selecting the igni- tion frequency ( Fig. 7.37 ). With the burner on high fl... -
Page 63: Checking The Condensate Drain Pipe
Activ A 25S electric supply isolator. Explain the proper use and adjustment of all Activ A 18S system controls; this will ensure the great- est possible fuel economy. Explain the function and use of the function selector. - Page 64 Press keys 11 and 13 ( Fig. 7.41 ) at the same time until the value of parameter 12 (99=Activ A 18S - Activ A 25S - Activ A Fig. 7.41 30S) is displayed on the LCD display ( Fig.
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Page 65: Setting Record
COMMISSIONING PARAMETER DIGIT VALUES 7.18 Setting record Not used Pr 21 --------------- Important: at the end of the setting op- eration it is important to fi ll/update the Not used Pr 22 --------------- table ( Fig. 7.45 ). Not used Pr 23 --------------- This to allow a correct setting of this... - Page 66 Press keys 11 and 13 ( Fig. 7.46 ) at the same time until the value of parameter 06 (06=Activ A 18S or 08=Activ A 25S or 09=Activ A 30S) is displayed on the LCD display ( Fig. 7.48 ).
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Page 67: Gas Conversion
GAS CONVERSION GAS CONVERSION 24 (Activ A 18S), page 26 (Activ A 25S) and page 28 (Activ A 30S). Warnings Gas restrictor The commissioning of this boiler and system must only be undertaken by a professionally qualifi ed person in ac-... - Page 68 GAS CONVERSION • Press keys 11 and 13 ( Fig. 8.3 ) at the same time until the value of parameter 05(00=G20) is displayed on the LCD dis- play ( Fig. 8.6 ). Fig. 8.3 Fig. 8.6 • By pressing key 13 three times, it is pos- sible to change the value of parameter 05 from 00=G20 to 05=G31, which is ok for...
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Page 69: Maintenance
MAINTENANCE MAINTENANCE Warnings The procedures detailed in this chapter must be carried out only by a profes- sionally qualifi ed person. Thus you are advised to contact an Authorised Service Agent. For Ireland (IE), the servicing work must be carried out by a competent Person. For effi... -
Page 70: Emptying The C.h. System
MAINTENANCE Emptying the c.h. system Control panel Turn the controls panel I , as shown in fi gure • Close the c.h. isolating valves ( 5 and 7 in Fig. 9.3 , to access in an optimal manner the Fig. 9.4 ). components inside the boiler. -
Page 71: Cleaning The Condensing Primary Exchanger And The Burner
MAINTENANCE Cleaning the condensing primary exchanger and the burner Removing the fan burner unit 33 in Fig. 9.7 . Fig. 9.8 • Disconnect the fan connector Q by press- ing the plastic hook P positioned at the bottom part of the connector ( Fig. 9.8 ). •... -
Page 72: Check The Pressure Of The Heating Expansion Vessel
MAINTENANCE Attention, to reassemble repeat Flue analysis points the operations carried out in re- verse order. Be careful not to damage the OR gasket of the gas pipe when inserting the pipe in Air box. After any service operation on the components of the gas cir- cuit check all the connections for gas leaks. -
Page 73: Checking The Gas Supply Pressure
MAINTENANCE 9.10 Checking the gas supply pressure Check appliance for gas tightness. Recheck operational pressures as de- scribed in section "Checking the gas supply pressure" to page 54 of this manual. 9.11 Water inhibitor concentration Where chemical products are used the level of water treatment should be checked on an Fig. - Page 74 MAINTENANCE value (e.g.99), the "chimney sweep func- tion" is at maximum output ( Fig. 9.15 ); Fig. 9.13 Chimney sweep function at maximum Fig. 9.15 output in heating mode • Press key 13 to vary the output in chimney • Press keys 11 - 12 - 13 ( Fig.
- Page 75 NOTES - 75 -...
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- Page 80 17962.1848.0 3109 80A5 Biasi UK Ltd Newman Park, Western Way Wednesbury, WS10 7BJ Sales Tel No: 0121 506 1340 Sales Fax No: 0121 506 1360 Service Tel No: 0121 506 1350 Service Fax No: 0121 506 1370 www.biasi.co.uk...