Biasi Activ A 25C User Manual And Installation Instructions
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Biasi Activ A 25C User Manual And Installation Instructions

Wall hung, fanflue, roomsealed, high efficiency gas boiler
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Wall hung, fanflue, roomsealed, high efficiency gas boiler
User manual and
Installation instructions
ActivA
Models
Activ A 25C
Activ A 30C
Activ A 35C
G.C. Appl. No.
47-583-21
47-583-22
47-583-23

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  • Page 1 Wall hung, fanflue, roomsealed, high efficiency gas boiler User manual and Installation instructions ActivA Models G.C. Appl. No. Activ A 25C 47-583-21 Activ A 30C 47-583-22 Activ A 35C 47-583-23...
  • 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...

  • 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.

  • 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.

  • Page 7: Table Of Contents

    7.13 Selecting the reignition frequency ..63 Technical data Activ A 25C ....26 7.14 Checking the ignition device....65 Technical data Activ A 30C .

  • 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 D.h.w. outlet valve House for possible time switch Gas inlet valve (c.h.

  • Page 9: Controls Panel

    APPLIANCE DESCRIPTION Controls panel Fig. 1.3 D.h.w. temperature increase key D.h.w. temperature reduce key Reset/Stand-by/Winter/Summer 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 temperature above Er 14 the section "TECHNICAL INFORMATION" 105°C to page 22 . Faulty primary circuit Er 04 (no water or absence of fl ow) Faulty fan control Er 05 system...
  • Page 11 APPLIANCE DESCRIPTION FUNCTION FUNCTION Boiler in chimney Burner ignition sweep functioning (spark) mode. The chimney sweep is activated by setting Flame present "parameter 09=01" (Burner on) and is visualised by the switching on of the hand and alternate fl ashing between the Boiler in anti-freeze temperature and the phase (bP fl...

  • 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- Stand-by lation switch and contact your Installer or an approved Service Engineer. Air introduced into the boiler during this fi ll- °C ing process will vent through the automatic Winter...

  • Page 14: C.h. Circuit Temperature

    INSTRUCTIONS FOR USE Hot water production functioning only • Press the key 15 for 2 seconds until the symbol appears on the display Fig. 2.7 . °C Fig. 2.9 Adjustment of temperature WITHOUT the external temperature probe (option- al) fi tted Adjust the c.h.

  • Page 15: D.h.w. Temperature

    INSTRUCTIONS FOR USE Adjusting the c.h. temperature with the with cold water. external temp. probe installed In this way, the automatic adjustment fea- When the external temp. probe (optional) is tures will be appreciated. installed your boiler automatically adjusts the If water hardness is particularly high, we temperature of the c.h.
  • Page 16 INSTRUCTIONS FOR USE Close Fig. 2.13 position Fig. 2.15 • If necessary, empty the hydraulic circuits see section "Emptying the d.h.w. system" to page 73 and section "Emptying the c.h. Fig. 2.14 system" to page 73 . If a long period of inactivity is envisioned: •...

  • Page 17: 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 18: External Cleaning

    USEFUL ADVICE and cleaned. This service can be part of a maintenance contract. In particular, you are advised to have the following checks car- ried out: • domestic hot water heat exchanger; RESET • condensing heat exchanger • burner; • exhaust fume duct and fl...
  • Page 19 USEFUL ADVICE Noise due to air bubbles are heard dur- ing operation You should check that the pressure on the pressure gauge is not below the correct set- ting. If required, top up the system correctly, as described in the section "Refi lling proce- dure"...

  • Page 20: Displaying In Info Mode

    USEFUL ADVICE Service Centre Engineer. Water should occasionally leak from the boiler Shut off the valves positioned under the boiler to page 16 and call an Authorised Service Centre Engineer. In this case or in case of prob- lems other than those men- tioned here, switch off the boiler, as described in section "Extin- Fig.

  • Page 21: Remote Anomaly Code

    USEFUL ADVICE Remote anomaly code Flue probe If the boiler is connected to remote (option- The fl ue probe 19 indicated in Fig. 3.8 is al), a code that indicates a boiler anomaly is a safety device. This intervenes when the displayed in the centre of the display.

  • Page 22: Technical Information

    TECHNICAL INFORMATION TECHNICAL INFORMATION Overview Fig. 4.1 - 22 -...

  • Page 23: Main Diagram

    TECHNICAL INFORMATION Main diagram Fig. 4.2 5 C.h. fl ow valve Safety thermostat 6 D.h.w. outlet valve Flame-detecting electrode 7 Gas inlet valve Air manifold 8 D.c.w. inlet valve C.h. pressure relief valve 9 C.h. return valve Automatic airpurger valve 10 Condensate drain pipe Pump 11 Main circuit drain valve...
  • Page 24 TECHNICAL INFORMATION 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 D.h.w. heat exchanger Three-way diverter valve Three-way electric actuator valve 39 Air box (air/gas mixer) Ignition electrode Burner...

  • Page 25: 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 25C Pression (bar) Expansion vessel 0,60 0,54 Note: this boiler is designed for opera-...

  • Page 26: Technical Data Activ A 25C

    TECHNICAL INFORMATION Technical data Activ A 25C Heat input Central heating 20,0 Min/Max fl ow temperature °C 25 - 85 Nominal net central heating settings* BTU/h 68237 25,0 Maximum pressure Nominal net domestic hot water BTU/h 85297 22,2 Minimum pressure...
  • Page 27 TECHNICAL INFORMATION Gas supply pressures Electrical data mbar Voltage Frequency 2000 Power consumption Natural G20 1700 2500 Protection degree IPX4D 3700 External fuse rating 2500 Propane G31 Internal fuse rating N° 2 - 2 AF 4500 Flue design Gas rate maximum - central heating Boiler type Natural G20 2,12...
  • Page 28 TECHNICAL INFORMATION contents - central heating Nominal heat input (A) (E) 20,0 content with gas G20 (range 9,2 - 9,8 min - max) content with gas G31 (range 10,3 - 10,9 min - max) Minimum heat input (A) (E) content with gas G20 (range 8,6 - 9,2 min - max) content with gas G31 (range...

  • Page 29: Technical Data Activ A 30C

    TECHNICAL INFORMATION Technical data Activ A 30C Heat input Central heating 25,0 Min/Max fl ow temperature °C 25 - 85 Nominal net central heating settings* BTU/h 85297 30,0 Maximum pressure Nominal net domestic hot water BTU/h 102356 27,8 Minimum pressure Nominal gross central heating BTU/h...
  • Page 30 TECHNICAL INFORMATION Gas supply pressures Electrical data mbar Voltage Frequency 2000 Power consumption Natural G20 1700 2500 Protection degree IPX4D 3700 External fuse rating 2500 Propane G31 Internal fuse rating N° 2 - 2 AF 4500 Flue design Gas rate maximum - central heating Boiler type Natural G20 2,65...
  • Page 31 TECHNICAL INFORMATION contents - central heating (A) (E) Nominal heat input 25,0 content with gas G20 (range 92 - 9,8 min - max) content with gas G31 (range 10,3 - 10,9 min - max) (A) (E) Minimum heat input content with gas G20 (range 8,6 - 9,2 min - max) content with gas G31 (range...

  • Page 32: Technical Data Activ A 35C

    TECHNICAL INFORMATION Technical data Activ A 35C Heat input Central heating 30,0 Min/Max fl ow temperature °C 25 - 85 Nominal net central heating settings* BTU/h 102356 34,9 Maximum pressure Nominal net domestic hot water BTU/h 119074 33,3 Minimum pressure Nominal gross central heating BTU/h...
  • Page 33 TECHNICAL INFORMATION Gas supply pressures Electrical data mbar Voltage Frequency 2000 Power consumption Natural G20 1700 2500 Protection degree IPX4D 3700 External fuse rating Propane G31 2500 Internal fuse rating N° 2 - 2 AF 4500 Flue design Gas rate maximum - central heating Boiler type Natural G20 3,17...
  • Page 34 TECHNICAL INFORMATION contents - central heating (A) (E) Nominal heat input 30,0 content with gas G20 (range 9,2 - 9,8 min - max) content with gas G31 (range 10,3 - 10,9 min - max) (A) (E) Minimum heat input content with gas G20 (range 8,6 - 9,2 min - max) content with gas G31 (range...

  • Page 35: 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 36: 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 37: 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 38: 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 39: Domestic Water

    GENERAL REQUIREMENTS turn valve, without the approval of the Local premature scaling of the heat exchanger. Water Authority. Domestic water Mains water feed: hot water supply The domestic section of the boiler is de- The domestic water installation must be in signed to withstand an internal domestic accordance with the relevant recommenda- water pressure of 10 bar.
  • Page 40 GENERAL REQUIREMENTS tions and any local regulations which apply. Reference should be made to the current ETCI rules for electrical installations. For Ireland (IE), refer to I.S.813.2002. The boiler is supplied for connection to a 230 V~ 50 Hz supply. The supply must be fused at 3A.

  • Page 41: 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 42: 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 43: Overall Dimensions

    INSTALLATION Overall dimensions Joints The boiler respects the following dimensions: The boiler uses the following fi ttings: Pipe sizes Functions (o.d) Ø80 Ø80 Ø80 Gas, c.h. return, c.h. fl ow ø 22 D.c.w. inlet ø 15 Ø100 D.h.w. outlet ø 15 Pressure relief valve ø...

  • Page 44: Fitting The Fl Ue System

    INSTALLATION Fitting the fl ue system For a correct installation of the fl ue pipe, re- fer to the sheet provided together with the pre-selected kit. The horizontal routes of the fl ue pipes must incline about 1.5 degrees (25 mm per me- ter);...

  • Page 45: Choice Of Fl U

    INSTALLATION CORRECT system for installing INCORRECT system for installing Fig. 6.6 Fig. 6.7 A = air intake S = fl ue exhaust A = air intake 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 46 0.5 m, whilst the maximum with adapter the aid of extensions must not exceed 10 m for Activ A 25C - Activ A 30C and 6 m for Restrictor Activ A 35C. Vertical fl ue exhaust kit with 90° bend Gasket ( Fig.
  • Page 47 45° maximum height. Its maximum height with extension is 10 m for Activ A 25C - Activ A 30C and 6 m for Ac- Fig. 6.11 tiv A 35C. Bends of Ø 80 mm at 90° and at 45° are available that reduce the maximum...

  • Page 48: 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 25C - Activ A 30C and 9 metres for Activ A 35C can be achieved utilising extensions.
  • Page 49 INSTALLATION • Identify the terminal block cover lid " X " ( Fig. 6.15 ) and open it. Remote External Probe Electric power supply Fig. 6.15 Ambient Electric power supply connection thermostat • Connect the electric power supply cable coming from the fused spur isolation switch to the power supply terminal block of the Fig.

  • Page 50: Connecting The Room Thermostat Or Zone Valves

    INSTALLATION Allow the cables to exit the boiler by using the relevant cable clamps Y ( 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 51: 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 52: Installation Of The External Temperature Probe

    INSTALLATION 6.12 Installation of the external Use the clamps indicated in Fig. 6.25 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 53: Example Of Hydraulic Plants With Hydraulic Separator

    INSTALLATION The route of the remote control cable must Hydraulic plant examples follow the route indicated in Fig. 6.17 . Allow the cables to exit the boiler by using Top zone + low temperature zone. the relevant cable clamps Y ( Fig. 6.18 ). External probe 6.15 Example of hydraulic plants...

  • Page 54: 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 55: 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 56: Lighting The Boiler

    COMMISSIONING symbol ( Fig. 7.5 ). Fig. 7.5 • Press the 15 key for 2 seconds until both Fig. 7.3 symbols appear on the An alternative, to avoid the removal of the display Fig. 7.6 . fl ue elbow, pour the water through the fl ue sampling point ( Fig.

  • Page 57: Checking The Gas Supply Pressure

    "Technical For the fi rst lighting up and following main- Data" section ( pag. 26 Activ A 25C, pag. tenance procedures for the gas supply, it 29 Activ A 30C and pag. 32 Activ A 35C).

  • Page 58: Enabling Functioning Of The External

    CO/CO2 (The limits for the boiler is given in "Technical Data" section pag. 26 Activ A 25C, pag. 29 Activ A 30C and pag. Fig. 7.11 32 Activ A 35C: CO2 contents / other fl ue gas fi...

  • Page 59: 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 If the boiler is EQUIPED with the remote 60 is displayed, wait for the number pro- control (optional) refer to Fig.
  • Page 60 COMMISSIONING Sequence for setting the K coeffi cient • Enter in "programming mode" by pressing keys 15 - 16 - 17 ( 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.

  • Page 61: 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 16 (reduce) and 17 (increase) ( Fig.
  • Page 62 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 15 and 17 ( Fig. 7.23 ) at the same time until the value of parameter 11 Fig.

  • Page 63: 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 ). 7.13 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 64 COMMISSIONING Fig. 7.34 • It is possible to modify parameter 10 by 00=0s to99=600s using keys 16 or 17 (each increase or reduction by a unit on Fig. 7.32 the display corresponds to 6 seconds). • Scroll the various parameters using keys •...

  • Page 65: Checking The Ignition Device

    COMMISSIONING ( Fig. 7.36 ) Fig. 7.38 Fig. 7.36 • To exit programming, press button • Press buttons to display the "PM10" program for selecting the igni- 7.14 Checking the ignition device tion frequency ( Fig. 7.37 ). With the burner on high fl ame close the gas cock.

  • Page 66: Checking The Condensate Drain Pipe

    Activ A 30C electric supply isolator. Explain the proper use and adjustment of all Activ A 25C system controls; this will ensure the great- est possible fuel economy. Explain the function and use of the function selector.
  • Page 67 Press keys 15 and 17 ( Fig. 7.41 ) at the same time until the value of parameter 12 (74=Activ A 25C or 79=Activ A 30C or 86=Activ A 35C) is displayed on the LCD Fig. 7.41 display ( Fig. 7.44 ).

  • Page 68: Setting Record

    COMMISSIONING PARAMETER DIGIT VALUES 7.19 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 69 Press keys 15 and 17 ( Fig. 7.46 ) at the same time until the value of parameter 01 (01=Activ A 25C or 02=Activ A 30C or 03=Activ A 35C) is displayed on the LCD display ( Fig. 7.48 ).

  • Page 70: Gas Conversion

    GAS CONVERSION GAS CONVERSION 26 (Activ A 25C), page 29 (Activ A 30C) and page 32 (Activ A 35C). Warnings Gas restrictor The commissioning of this boiler and system must only be undertaken by a professionally qualifi ed person in ac-...
  • Page 71 GAS CONVERSION • Press keys 15 and 17 ( 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 17 three times, it is pos- sible to change the value of parameter 05 from 00=G20 to 05=G31, which is ok for...

  • Page 72: 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 73: Emptying The D.h.w. 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 9 in Fig. 9.3 , to access in an optimal manner the Fig. 9.4 ). components inside the boiler.

  • Page 74: Cleaning The Condensing Primary Exchanger And The Burner

    MAINTENANCE Cleaning the condensing primary exchanger and the burner Removing the fan burner unit 41 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 75: Check The Pressure Of The Heating Expansion Vessel

    MAINTENANCE Attention, to reassemble repeat dicated in Fig. 9.9 and carry out combustion the operations carried out in re- analysis check and adjustment if necessary verse order. Be careful not to as described in the section Gas valve - Ad- damage the OR gasket of the justment of the Service manual.

  • Page 76: Visual Inspection Of Appliance

    MAINTENANCE 9.11 Visual inspection of appliance Visually inspect all water joints, seals and connections for any evidence of leakage and retighten, grease or replace them as necessary. 9.12 Checking the gas supply pressure Check appliance for gas tightness. Recheck operational pressures as de- Fig.
  • Page 77 MAINTENANCE tion" is at maximum output in domestic hot water mode" ( Fig. 9.15 ); Fig. 9.13 Chimney sweep function at maximum Fig. 9.15 output in heating mode • Press key 17 to vary the output in chimney • Press keys 15 - 16 - 17 ( Fig.
  • Page 80 17962.1824.0 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...

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