User’s Operating Instructions & Important Warranty Information Megaflo 2 System Compact GA Range Gas Fired Wall Mounted Condensing System Boiler Please keep these instructions in a safe place. If you move house, please hand them over to the next occupier.
Contents Section Model Range Baxi Megaflo 2 System 12 Compact GA G.C.No 41-075-70 Baxi Megaflo 2 System 15 Compact GA G.C.No 41-075-71 Baxi Megaflo 2 System 18 Compact GA G.C.No 41-075-72 Baxi Megaflo 2 System 24 Compact GA G.C.No 41-075-73 Baxi Megaflo 2 System 28 Compact GA G.C.No 41-075-74 Baxi Megaflo 2 System 32 Compact GA G.C.No 41-075-75 Page 1.0 Quick Reference Guide 3 2.0 Troubleshooting 4 3.0 Temperature Adjustment & Care of the Boiler 6 4.0 Repressurising System & ‘Service Due’ 7 5.
1.0 Quick Reference Guide Key to Controls Boiler Information View Standby - Reset - Esc Standby - Reset - Esc R Boiler Information View Increase Boiler Temperature Button Decrease Boiler Temperature Button Inactive Button Inactive Button On/Off Selector Button THESE BUTTONS INACTIVE Central Heating (CH) Temperature Adjustment When is displayed (Boiler On) the boiler will respond to timed Heating or Hot Water demand. N.B.
Boiler not working 2.0 Troubleshooting START YES Make sure the gas supply is turned ON and check if other gas appliances are operating (e.g. fire, cooker). Is there electricity to the boiler ? Is the display lit ? Is the Burner Flame symbol showing ? YES R R NO NO Burner Flame (Indicates burner is on) If no gas, consult your supplier. Boiler Temperature YES NO Central Heating Boiler operating satisfactorily. Check electrical supply to boiler is switched on.
2.0 Troubleshooting YES Is the Timer ON and calling for heat ? 12 NO 1 Is the Central Heating System Pressure between 1 and 2.5 bar ? YES 3 9 YES NO 2 10 11 Is the Room Thermostat (if fitted) set high enough ? 15 20 4 8 10 5 25 5 7 6 CH ON Typical examples of external timer 2 1 3 4 0 bar CH OFF Turn Room Thermostat to maximum setting (typical example shown) If the reading falls below 1 bar repressurise the system as described in section 4.1.
3.0 3.1 Display Screen THESE BUTTONS INACTIVE Temperature Adjustement & Care of the Boiler To increase or decrease the boiler temperature 1. Press the ( ) to increase the boiler temperature. 2. Press the ( ) to decrease the boiler temperature. Central Heating Temperature Adjustment On/Off Selector Button R NOTE: An overheat thermostat (NTC) is positioned in the heat exchanger which shuts down the appliance if the boiler temperature exceeds 100°C.
4.0 Repressuring System & ‘Service Due’ 4.1 Central Heating System Pressure 1. The normal operating water pressure is between 1 and 2.5 bar (Fig. 1). If the pressure exceeds 3 bar the safety pressure valve will operate and a fault is indicated (E117 displayed). Contact your installer. Front and Side Panel removed for clarity 2. It may be necessary to repressurise the system occasionally (as Fig. 2 or E118 displayed). A filling device (the filling loop) will be fitted on the system.
5mm Min 390mm (32 kW models - 450mm) 5mm Min 5.0 Clearances 175mm Min (300mm Min if using 80/125 flue system) 5.1 For your Safety 1. This appliance must have been installed in accordance with the manufacturer’s instructions and the regulations in force. 2. Any modification that may interfere with the normal operation of the appliance without express written permission from the manufacturer or his agent could invalidate the appliance warranty.
6.0 Error Codes 6.1 List of Error Codes 1. The display shows two types of signals: and R . In both cases the display shows symbol and the numeric value of the error (see the “error table” below). 2. The spanner cannot be reset by the user. Please contact your Installer, Annual Service Provider or ‘heateam’ The Service Division of Baxi to arrange your Annual Service. You can contact ‘heateam’ on telephone number 08448 711 545 or visit www.heateam.co.uk 3.
7.0 Legislation 7.1 Installation, Commissioning, Service & Repair 1. 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. 2. In GB, this must be carried out by a competent person as stated in the Gas Safety (Installation & Use) Regulations. 3.
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Please complete the boxes below 9.0 Warranty & Service Serial Number Standard Warranty Terms & Conditions To activate your second year free warranty you must register your boiler with heateam the service division of Baxi Heating UK Ltd either by completing and returning the registration card or calling our telephone registration line on 0800 013 7989.
