Related Manuals for A.O. Smith BTI 100 G
Summary of Contents for A.O. Smith BTI 100 G
- Page 1 MODELS BTI 85 BTI 100 G INSTALLATION AND USER INSTRUCTION UNITED KINGDOM / IRELAND HOT WATER STORAGE HEATERS...
- Page 2 The appliance may only be installed in a room if this room meets the ventilation requirements. A.O. SMITH ACCEPTS NO RESPONSIBILITY FOR WARRANTY, SERVICE AND/OR PRODUCT LIABILITY IN CASE OF UNAUTHORISED ALTERATIONS, PRODUCT...
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Page 3: Table Of Contents
CONTENTS GENERAL Description ... 4 Technical safety equipment ... 6 1.2.1 Gas control valve ... 6 1.2.2 Control panel ... 6 1.2.3 Operation of the storage water heater ... 7 1.2.4 Combustion products discharge safety device ... 7 Technical information ... 8 1.3.1 Dimensions ... -
Page 4: General Description
1. GENERAL Description of the appliance Construction of the water heater is in accordance with the European standard for gas heated water storage heaters for sanitary application (EN89). The appliance thus meets the European Directory for Gas Appliances and is therefore entitled to carry the CE- marking. - Page 5 Figur 1 - Cross section of the heater Draught diverter Hot water outlet Insulation Flue tube Glass lined tank Gas valve and spark ignition Control panel Inspection cover plate Intermittent pilot burner and flame probe 10) Cold water inlet 11) Combustion products discharge safety device 12) T&P valve connection 13) Outer casting...
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Page 6: Technical Safety Equipment
Technical safety equipment 1.2.1 Gas control valve The water heater is equipped with a gas control wich regulates the flow of gas to the burner. The gas block is equipped with a safety valve, gas valve and burner control (on a standard natural gas setting). -
Page 7: Operation Of The Storage Water Heater
1.2.3 Operation of the storage water heater. Normal operation When there is a demand for heat a waiting period of about 1 second elapses before the built-in spark gene- rator and pilot gas valve are switched on. The ignition sparks ignite the pilot burner and the resulting flame is detected by the ionisation electrode. -
Page 8: Technical Information
Technical information 1.3.1 Dimensions These water heaters are only suitable for a flue tube with minimal the announced diameter (dimension G). Dimensions All dimensions are given in mm. (rounded off on 5mm). See figur 3. BTI 85 1585 1450 1505 1505 1280 Cold water inlet... - Page 9 AOS 1092 Figur 3 - Dimensions...
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Page 10: Technical Data
1.3.2 Technical data DESCRIPTION DATA NATUREL GAS G20 - 20 mbar Nominal capacity Nominal load (gross) Supply pressure Burner pressure Gas consumption * Diameter main orifice Diameter pilot orifice Heating time T= 45K DATA BUTANE G30 - 30 mbar Nominal load (gross) Nominal capacity Supply pressure Gas consumption *... - Page 11 Electrical connection Electrical Frequency supply 220/240 V AC 50 Hz Ionisation current. The minimal ionisation current is 0.9 mi- cro-Amperes DC. Below this current the burner controller will assume no flame present. When in normal operation, the ionisation current wil be about 1.2 to 1.3 micro-Amperes DC when only the pilot flame is burning.
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Page 12: Installation Instructions
2. FOR THE INSTALLER Installation instructions This water heater must be fitted in a location which will permit the provision os an approved flue system and ade- quate ventilation. A service clearance of 15 cm at the sides and rear of the unit and 60 cm at the front of the unit should be allowed for ease of servicing. -
Page 13: Water Circulation System
For futher advise contact A.O. Smith. 2.1.2 Water circulation system A.O. SMITH water heaters are suitable for connection to vented, unvented and pumped pressurised systems. In each Figur 4 - Connection diagram vented systems case appropriate valves and fittings... - Page 14 Unvented system (See figur 5) To install an A.O. Smith water heater on an unvented cold water supply system a kit of valves and fittings fisted by the water reseach centre and complying with part G3 of the current building regulations should be used.
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Page 15: Gas Connection
2.1.3 Gas connection The gas supply to this appliance must be installed in accordance with BS 6891 (1988) and British Gas Publications UP1 and UP2. Fit the 1/2” gas supply cock supplied with this unit immediately before the gas control. No heat or soldered joints should be applied in the vicinity of the gas control, as they could cause damage to the control. -
Page 16: Commissioning
Commissioning 2.2.1 Filling the water heater 1. Close the drain tap. 2. Open the cold water tap to the water heater and open all taps where hot water can be drained for de aeration. The water heater is filled as soon as cold water flows from all taps. -
Page 17: Removing And Replacing The Control Panel
Removing and replacing the control panel front cover Removing the cover (see figure 7) 1. Remove the screw at the top centre of the control panel. 2. Push the cover upwards until the hooks at the lower end clear the burner access opening and base tray. -
Page 18: Removing And Replacing The Inner Door
Mounting the inner door Mode of operation: (see figur 8). 1. Place the clips in the position on the inner door so the door can fullty stick into the opening. 2. Lift the door up and rotate it over the burner into position. -
Page 19: Converting To Another Type Of Gas
Converting to another type of gas For conversion of the appliance from natural gas to another type of gas, or visa versa, it is necessary to exchange the pilot injector and the main injector. The conversion may only be executed by a qualfied competent person. -
Page 20: Cleaning
2.8.2 Cleaning 1. Close the gas supply and demount the burner after it has cooled down 2. Disconnect the burner assembly from the gas control 3. Remove the complete burrner assembly 4. Clean the burner with a soft brush 5. Check the pilot burner and clean it if so required 6. -
Page 21: Commisioning
3. FOR THE USER Commisioning Warning Installing and commissioning of this wa- ter heater should only be carried out by a qualified competent heating engineer. 3.1.1 Filling the water heater 1. Close the drain tap; 2. Open the cold water tap to the water heater and open all taps where hot water can be drained for de aeration. -
Page 22: Fault Overview
Fault overview Failure Possible Cause Gas smell Heater is Burner automat is in lock off or condition does not ignit Blocked chimney Overheat thermostat is engaged Gas supply shut off Insufficient Temperature set too low hot water, or none at all Thermal Reflux Safeguard has shut down the heater Overheat thermostat is... -
Page 23: Warranty
(for further information and advise please con- tact the A.O. SMITH technical Depart- ment). Range of guarantee All replacement water heaters supplied under the terms of this warranty will be supplied ex stock on a F.O.B basis. - Page 24 A.O. SMITH Water Products Company With respect to the water heater in question further A.O. Smith does not guarantee this water heater as suitable for purpose except within the terms of warranty detailed above. A.O. SMITH Water Products Company...
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Page 25: Appendix 1
APPENDIX 1 Connection diagram BTI models A = Ignition controller = brown B = ON/OFF switch = blue C = Pilot burner = yellow/green D = Spark electrode = black E = Flame probe = white F = Transformer flame detection * = red G = TRS H = Control thermostat... - Page 28 0308 253 R0...