User’s Operating Instructions & Important Warranty Information Baxi Combi 105 HE Gas Fired Wall Mounted Condensing Combination Boiler Please keep these instructions in a safe place. If you move house, please hand them over to the next occupier.
Natural Gas Baxi Combi 105 HE G.C.No 47 075 18 Where fitted, user label for optional timer to be applied here © Baxi Heating UK Ltd 2007 All rights reserved.
Legislation IMPORTANT - Installation, Commissioning, Service & Repair This appliance must be installed in accordance with the manufacturer’s instructions and the regulations in force. Read the instructions fully before installing or using the appliance. In GB, this must be carried out by a competent person as stated in the Gas Safety (Installation & Use) Regulations.
1.0 Warnings 1.1 In an Emergency If a water or gas leak occurs or is suspected, the boiler can be isolated at the inlet valves as follows; 1. Using a suitable open ended spanner, turn the square nut on the gas tap through 90° (1/4 turn) in a clockwise direction to isolate the gas supply at the boiler (Fig. 1). Gas Tap 2. The isolating valves are positioned under the boiler and can be closed by turning their taps to the right towards the wall (Fig. 2). Fig. 1 3.
2.0 Introduction 2.1 Introduction 1. Your Baxi Combi 105 HE is a gas fired, room sealed, powered flue condensing combination boiler, providing central heating for your home and mains fed domestic hot water to taps and shower. It is fully automatic and does not have a pilot light. Boiler frost protection and pump protection are integral features of the appliance. 2. Priority is given to the hot water mode - when a hot water tap is turned on the supply of heat to the central heating circuit is interrupted.
3.0 Operating the Boiler 3.1 Operating the Boiler 1. Ensure that the electricity and gas supplies are turned on. Check that the central heating pressure is between 0.5 and 1.0 bar (Fig. 4). 6 30 7 o 40 8 o 50 9 o 10 60 o 70 o 2. Turn the On/Off/Reset selector switch either anticlockwise from the off position (Fig. 6) to both central heating and domestic hot water or clockwise to domestic hot water only. 11 80 o 3. In either position the green power on indicator ( ) will illuminate (Fig. 5).
3.0 Operating the Boiler 3.2 Temperature Control 1. Central Heating: The central heating hot water flow temperature can be adjusted between 30° C (± 5° C) minimum and 85° C (± 5° C) maximum. 2. Turn the control knob clockwise to increase the temperature (Fig. 9). 3. In normal winter usage we recommend that the central heating temperature be set at maximum. 4.
3.0 Operating the Boiler Pump/Low Pressure Neon Sensor Fault Neons o 40 o Air Flow Monitor 1. The boiler is fitted with an air pressure sensing device. This monitors the flue system. Air Flow Monitor Neon 30 3.5 50 o 60 o 70 o 80 o 2. If the neon illuminates ( ) it indicates that the flue or flue terminal is blocked or obstructed in some way, or that there is an internal fault.
3.0 Operating the Boiler Pressure Gauge 3.9 Central Heating System Pressure 2 1 3 1. The water pressure in the central heating system is indicated by the pressure gauge. 4 0 bar Fig. 15 Normal Pressure (when cold) 2 3 1 2. With the system cold and the boiler not operating the pressure should be between 0.5 and 1.0 bar. During operation the pressure should not exceed 2.5 bar, and will normally be between 1.0 and 2.0 (Figs. 15 & 16). 3. A pressure of 3 or greater indicates a fault.
20mm/5mm Min 450mm 5mm Min 4.0 Clearances and Check List See * NOTE: 4.1 200mm Min 1. The minimum clear spaces needed around the boiler measured from the casing are as follows: Top Bottom Left Side Right Side Front 780mm Clearances around the Boiler (Figs. 20 & 21) - 200mm 200mm 5mm 20mm/5mm 5mm (In Operation) 450mm (For Servicing) * NOTE: The boiler can be operated with a clearance of 5mm at the right. This is also sufficient for routine maintenance.
5.0 Care of the Boiler 5.1 Cleaning the Outercase The painted panels should be wiped with a damp cloth and then dried completely. DO NOT USE ABRASIVE CLEANING AGENTS. 5.2 Spare Parts 1. Once outside the guarantee period any spare parts may be obtained through approved Baxi Heating UK Ltd stockists if required. 2. Quote the boiler name, model number (found on the reverse of the facia cover) and where possible the part number when ordering spares.
Please complete the boxes below 9.0 Warranty & Service Serial Number Standard Warranty Term & Conditions 12 Months Free Warranty - register today To receive your 12 months free warranty please complete the form supplied with the boiler or simply call heateam, the service of Baxi Heating UK Ltd on 08706 000 653. Our promise to you If you experience a fault with your new boiler, we aim to provide a safe and high quality repair service supported by our dedicated national network of highly skilled engineers.
