Baxi System 100 HE Plus Installation & Servicing Instructions Manual
  1. Manuals
  2. Brands
  3. Baxi Manuals
  4. Boiler
  5. System 100 HE Plus
  6. Installation & servicing instructions manual

Baxi System 100 HE Plus Installation & Servicing Instructions Manual

Wall mounted powered flue condensing gas fired central heating boiler
Hide thumbs Also See for System 100 HE Plus:
Table of Contents

Advertisement

Quick Links

Installation & Servicing Instructions
Baxi System 100 HE Plus
Wall Mounted Powered Flue Condensing
Gas Fired Central Heating Boiler
Please leave these instructions with the user

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the System 100 HE Plus and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Baxi System 100 HE Plus

Summary of Contents for Baxi System 100 HE Plus

  • Page 1 Installation & Servicing Instructions Baxi System 100 HE Plus Wall Mounted Powered Flue Condensing Gas Fired Central Heating Boiler Please leave these instructions with the user...

  • Page 2: Natural Gas

    Natural Gas Building Regulations and the Benchmark Commissioning Checklist Baxi System 100 HE Plus G.C.N 41 075 43 Building Regulations (England & Wales) require notification of the installation of a heating appliance to the relevant Local Authority Building Control Department. From 1 April 2005 this can be achieved via a Competent Persons Self Certification Scheme as an option to notifying the Local Authority directly.
  • Page 3 Installer Notification Guidelines Install and Commission this appliance to manufacturer's instructions Complete the Benchmark Checklist Choose Building Regulations Notification Route Competent Person's Building Control Self Certification Scheme If you notify via CORGI Scheme, Contact your relevant Local CORGI will then notify the Authority Building Control relevant Local Authority (LABC) who will arrange...
  • Page 4 Legislation IMPORTANT - Installation, Commissioning, Service & Repair Baxi declare that no substances harmful to health are contained in the appliance or used during appliance This appliance must be installed in accordance with the manufacturer’s instructions and manufacture. the regulations in force. Read the instructions fully before installing or using the appliance.

  • Page 5: Table Of Contents

    Contents Section Page Introduction General Layout Appliance Operation Technical Data Dimensions and Fixings System Details Site Requirements Installation Electrical 10.0 Commissioning 11.0 Outer Case 12.0 Servicing 13.0 Changing Components 14.0 Short Parts List 15.0 Fault Finding Benchmark Checklist...

  • Page 6: Introduction

    1.0 Introduction Description 1. The Baxi System 100 HE Plus is a gas fired room sealed fan assisted condensing central heating system boiler. 2. The maximum output of the boiler is preset at 75,000 Btu/hr. The boiler will automatically adjust down to 30,000 Btu/hr according to the system load.

  • Page 7: General Layout

    2.0 General Layout Layout (Figs. 3,4 & 5) Wall Plate Flue Elbow Heat Exchanger Burner Air Box Fig. 6 Fan Protection Thermostat Fan Assembly Condensate Trap Fig. 5 13/14 Gas Tap Gas / Air Ratio Valve Flow Temperature Safety Thermostat - Black Flow Temperature Thermistor - Red Flow Switch (dry fire protection) Circulation Pump...

  • Page 8: Appliance Operation

    3.0 Appliance Operation Switched Live to Boiler On. 1. Switched Live To Boiler On: When the switched live switches on if the flow temperature is less than the set point then pump on occurs. When the switched live to Flow the boiler switches on if the flow temperature is greater temperature less than set point ?

  • Page 9: Technical Data

    CO/CO Ratio 0.001 SEDBUK Declaration For Baxi System 100 HE Plus Central Heating Circuit available Pump Head The seasonal efficiency (SEDBUK) is 90.9 % This value is used in the UK Government’s Standard Assessment Procedure (SAP) for energy rating of dwellings. The test data from which it has been calculated have been certified by 0086.

  • Page 10: Dimensions And Fixings

    5.0 Dimensions and Fixings DIMENSIONS A 850mm 3° (1 in 20) B 320mm C 490mm D 125mm Ø Min. E 150mm F 125mm 360° Orientation The 3° (1 in 20) fall provided by the elbow is to allow condensate to run back to the boiler, for disposal through the condensate discharge Tube Ø...

  • Page 11: System Details

    • It is important to check the inhibitor concentration after installation, system modification and at every service in accordance with the manufacturer’s instructions. (Test kits are available from inhibitor stockists.) • For information or advice regarding any of the above contact the Baxi Helpline.
  • Page 12 230V 50Hz Key to colours Y Plan L N E - Blue 6.0 System Details Diverter - Brown Valve Cylinder - White Stat - Orange System Controls Room - Grey Stat This boiler does not require a bypass. g/y - Green/Yellow This boiler does not require a permanent live.
  • Page 13 1 metre from the boiler and include any branches (Fig. 9). Thermal Stores 1. When the Baxi System 100 HE Plus is fitted in conjunction with a thermal store, both jumpers must be removed from the Control PCB, see Fig. 34 Section 8.7.
  • Page 14 6.0 System Details System Filling and Pressurising (Fig. 10) 1. A filling point connection on the central heating return Double pipework must be provided to facilitate initial filling and Stop Stop Check pressurising and also any subsequent water loss Cold Valve Valve Valve...

  • Page 15: Site Requirements

    7.0 Site Requirements Location NOTE: Due to the high efficiency of the boiler a plume of water vapour will be discharged from the flue. This should be taken into account when siting the flue terminal. Zone 2 1. The boiler may be fitted to any suitable wall with the flue Window Recess passing through an outside wall or roof and discharging to...
  • Page 16 7.0 Site Requirements 490mm 5mm Min 5mm Min Clearances (Figs. 13 &14) 1. A flat vertical area is required for the installation of the boiler. 200mm 2. These dimensions include the necessary clearances around the boiler for case removal, spanner access and air movement.
  • Page 17 7.0 Site Requirements Termination to an internal soil and vent pipe Boiler Condensate Drain FAILURE TO INSTALL THE CONDENSATE DISCHARGE PIPEWORK CORRECTLY WILL AFFECT THE RELIABLE OPERATION OF THE BOILER The condensate discharge pipe MUST NOT RISE at any point along its length. There MUST be a fall of AT LEAST 2.5°...
  • Page 18 Assembly 7. If required a suitable terminal guard is available from Baxi for use with the flue deflector. 8. For fitting under low soffits and eaves it is acceptable for the flue to project up to 500mm from the face of the wall Top View Rear Flue to the inside of the air intake.
  • Page 19 Pictorial examples of flue runs where EQUIVALENT flue length equals 4m 7.10 Vertical Flue 1. Only a flue approved with the Baxi System 100 HE Plus can be used. 2. For information on vertical flues consult the Baxi Flue Guide Brochure or Notes for Guidance supplied with the vertical flue pack.
  • Page 20 Detailed examples of equivalent flue length calculation are given in the Installation Guidance Notes for each flue system type. (Documents 243501 and 243502 for concentric and twin pipe respectively). Accessory Size Baxi Code Number Concentric Flue System 110mm diameter Horizontal flue kit 850mm 236921 Straight extension kit...

  • Page 21: Installation

    Example Edge of Boiler 8.0 Installation Example V = 110mm Check Site Requirements (section 7.0) before commencing. Horizontal Initial Preparation Side Flue Centre Line Centre The gas supply, gas type and pressure must be checked Hole for suitability before connection (see Section 7.4). EXAMPLE: Boiler is 2 metres away from corner of wall, flue duct hole is 110mm up from horizontal side flue...
  • Page 22 NOTE: A small amount of water may drain from the boiler in the upright position. Service Guidance Note Label Baxi declare that no substances harmful to health on inside of panel are contained in the appliance or used during construction of the appliance.
  • Page 23 8.0 Installation Top Hooks Fitting The Boiler (Fig. 24) 1. Remove the tape from the tap rail on the support bracket and fit the central heating return filter (Fig. 26). 2. Lift the boiler over the support bracket using the lifting points shown in Fig.
  • Page 24 8.0 Installation Wall Thickness Fitting The Flue Before fitting the flue, check the condensate drain integrity (see section 8.5). IMPORTANT: The flue should always be installed 3° with a 3° (1 in 20) fall from terminal to elbow, to (1 in 20) allow condensate to run back to the boiler.
  • Page 25 (Fig. 32). If necessary fit a terminal guard (see section 7.9). VERTICAL FLUEING 1. Only a flue approved with the Baxi System 100 HE Plus Boiler can be used. Gasket 2. For information on vertical flues consult the Baxi Flue Guide Brochure or Notes for Guidance with the vertical flue pack.
  • Page 26 8.0 Installation Making The Electrical Connections WARNING: This appliance must be earthed 1. The electrical connection is on the rear left hand side of the unit (Fig 33). 2. Remove the electrical plug from the hardware pack. 3. Connect S/L, N & E into the plug and connect it to the Metal Shield socket at the back left at the bottom of the boiler.

  • Page 27: Electrical

    9.0 Electrical Schematic Wiring Diagram Key To Wiring Colours b - Blue r - Red bk - Black g - Green w - White g/y- Green/Yellow br - Brown op - Opaque gy - Grey y - Yellow...
  • Page 28 9.0 Electrical Illustrated Wiring Diagram Wiring Key - Blue bk - Black br - Brown - Red Pump w - White g/y - Green/Yellow - Green gy - Grey op - Opaque Plug Filter Flow Thermistor Optional Pump Feed Flow Switch Spark Flame Electrode...

  • Page 29: Commissioning

    Automatic Air Vent 10.0 Commissioning 10.1 Commissioning the Boiler 1. Ensure that the filling loop is connected. Open the cold mains stop valve. 2. Ensure that the heating flow and return valves are open. Manual Air Vent 3. Open the system side stop valves. Fig.

  • Page 30: Outercase

    11.0 Outercase 11.1 Fitting The Outer Case 1. Position the outercase on the chassis, ensuring that the four slots in the side flanges align with the hooks on the chassis (Fig. 38). 2. Insert the two fixing screws into the sides of the chassis (Fig.

  • Page 31: Servicing

    Hazardous materials are not used in the construction of Baxi products, however reasonable care during service Flue Sampling Point is recommended. 1. For reasons of safety and economy, it is recommended that the boiler is serviced annually.
  • Page 32 12.0 Servicing Flue Sampling Point 12.1 Annual Servicing (Cont) 12. To clean the heat exchanger and burner proceed as follows: a) Disconnect the electrical leads to the fan component protection sensor (Fig. 42). b) Loosen the screw retaining the gas injector pipe at the venturi (Fig.

  • Page 33: Changing Components

    IMPORTANT: When changing components ensure that both the gas and electrical supplies to the boiler are isolated before any work is started. Hazardous materials are not used in the construction of Baxi products, however reasonable care during service is recommended. Heat Exchanger Manifold...
  • Page 34 13.0 Changing Components Flowswitch 13.3 Flowswitch (Fig. 47) 1. Drain the boiler (see Section 13.1 paragraph 2 & 3). Flow Pipe 2. It may be necessary to remove the expansion vessel (see Section 13.5). 3. Remove the clip securing the flow pipe to the flowswitch. 4.
  • Page 35 13.0 Changing Components The Pump, interface PCB, pressure gauge and pressure relief valve can be accessed after hinging down the facia panel. 1. Release the facia securing screws ( turn) and hinge down the facia panel. 13.7 Pump (Fig. 50) Facia Panel 1.
  • Page 36 13.0 Changing Components Pressure Gauge Bracket 13.10 Pressure Gauge 1. Drain the boiler (see Section 13.1 paragraph 2 & 3). 2. Undo the nut retaining the capillary in the connection at the return pipe (Fig. 55). 3. Depress the two lugs on either side of the pressure gauge and feed through facia (Fig.
  • Page 37 13.0 Changing Components 13.12 (Fig. 57) WARNING: The PCB Control and Fan Assembly is 325 Vdc. Isolate at supply before access. 1. Pull the control knob off its spindle and remove the plastic button cover. Refit them onto the new PCB (Fig.
  • Page 38 13.0 Changing Components The fan and venturi, gas valve, injector pipe, condensate trap, fan protection sensor, spark and sensing electrodes can be accessed and changed on the removal of the airbox door panel. 1. Remove the airbox door panel by loosening the four turn screws.
  • Page 39 13.0 Changing Components The removal of the fan is necessary to enable the changing of the injector pipe, condensate trap and gas valve (see section 13.14). 13.15 Injector Pipe (Fig. 60) 1. Remove the injector pipe by pulling out from the ‘O’ ring joint in the gas valve.
  • Page 40 13.0 Changing Components The burner and heat exchanger can be changed after Combustion Box removal of the combustion box door. To change the heat Door Panel exchanger, the fan and burner must be removed first (see section 13.14 & 13.18). 1.
  • Page 41 13.0 Changing Components 13.20 Heat Exchanger Lower Insulation Pad (Fig. 66) WARNING: The PCB Control and Fan Assembly is 325 Vdc. Isolate at supply before access. 1. Remove the fan and condensate trap (see section 13.14 and 13.17). 2. Remove the burner (see section 13.18). 3.

  • Page 42: Short Parts List

    14.0 Short Parts List Short Parts List G.C. Description Manufacturers Part No. E06 058 Flow Temperature Thermistor (Red) 240670 E06 059 Flow Switch 242459 E06 060 Safety Thermostat (Black) 242235 PCB - enclosure 5110991 5109925 E78 749 Gas Valve 242473 E06 085 Viewing Window 242484...

  • Page 43: Fault Finding

    15.0 Fault Finding Lockout Light (Red) Reset NOTE: The fan is supplied with 325 Vdc. Boiler On Light (Green) Fan Fault Finding should only be carried out after the boiler has been electrically isolated. High Mains On General Fault Finding should only be carried out by Light (Green) someone who is appropriately qualified.
  • Page 44 15.0 Fault Finding ELECTRICAL SUPPLY Lights No Switched Live to boiler. Check Systems 240V at A ? Controls and System Wiring. Check wiring from 240V at B ? terminal block to PCB. Optional Pump Live Check for shorts on pump, fan & gas valve. PCB fuse OK ? Replace if shorted &...
  • Page 45 15.0 Fault Finding DRY-FIRE Lights Flash Flash Is the Fill system with water and system full of water ? bleed out all air. Optional Pump Replace PCB. Live Turn Turn Is the mains off, unplug Is the mains off & on. After 5 sec, is 7-way connector to PCB.
  • Page 46 15.0 Fault Finding IGNITION LOCKOUT Lights Check isolation valve and Is there gas at gas valve inlet ? gas supply. 5-way Connector Remove 5-way connector Reset Lockout. from gas valve. Is there 240 Is there gas flow Replace Gas Valve. Vdc between I &...
  • Page 47 15.0 Fault Finding Flash OVERHEAT LOCKOUT Lights Disconnect black stat on flow pipe. Replace Stat. When flow < 60° C is there continuity across stat ? Reconnect stat. Disconnect fan stat. Replace Stat. When fan temp < 60° C is there continuity across stat ? Reconnect stat.
  • Page 48 15.0 Fault Finding Flash FAN LOCKOUT Lights Flash NOTE: The fan is supplied with 325 Vdc. Fan Fault Finding should only be carried out after the boiler has been electrically isolated. Connection Connection Unplug 3-way PCB connector & unplug fan. Is there Rectify wiring.
  • Page 49 16.0 Notes...
  • Page 50 5 1 1 0 4 8 1 BENCHMARK No. GAS BOILER COMMISSIONING CHECKLIST C O L L E C T I V E M A R K BOILER SERIAL No. NOTIFICATION No. CONTROLS To comply with the Building Regulations, each section must have a tick in one or other of the boxes TIME &...

  • Page 51: Service Interval Record

    SERVICE INTERVAL RECORD It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below. Service Provider. Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the boiler manufacturer’s instructions.
  • Page 52 BAX I POTTER TON A Trading Division of Baxi Heating UK Ltd Brownedge Road Bamber Bridge Preston Lancashire PR5 6UP After Sales Service 08706 096 096 Technical Enquiries 08706 049 049 Website www.baxi.co.uk 5110481 - Iss 3 - 03/05 Comp N...

Table of Contents