A.O. Smith BTI 85 G - Manuals

8 A 1585 1780 B 1450 1640 D 645 675 F 770 775 G 130 130 K 340 340 L 355 370 M 1505 1685 N 1505 1685 P 210 210 R 285 285 S 1280 1460 V 410 410 1 Cold water inlet 2 Hot water outlet 3 Gas control 4 Drain valve 5 T&P relief valve tapping 6 Clean out Dimensions BTI 85 BTI 100 1.3 Technical informati...

10 DATA NATUREL GAS G20 - 20 mbar Nominal capacity kW 19.2 20.4 Nominal load (gross) kW 25.1 26.7 Supply pressure mbar 20 20 Burner pressure mbar 12.0 7.9 Gas consumption * m 3 /h 2.40 2.50 Diameter main orifice mm 3.90 4.50 Diameter pilot orifice mm 0.56 / 0.41 0.56 / 0.41 Heating time ∆ T= 45K min...

12 2. FOR THE INSTALLER 2.1 Installation instructions This water heater must be fitted in alocation which will permit the provisionos an approved flue system and ade-quate ventilation. A service clearance of 15 cm at thesides and rear of the unit and 60 cm atthe front of the unit should be allowedfo...

13 Figur 4 - Connection diagram ventedsystems Therefore if this water heater will beused to supply hot water to:- hairdressers, - dry cleaners, - industrial degreasing processesor any other area wherecompounds containing halogens areused and stored, care should be taken that all primary and secondar...

14 Unvented system (See figur 5) To install an A.O. Smith water heater onan unvented cold water supply systema kit of valves and fittings fisted by thewater reseach centre and complyingwith part G3 of the current buildingregulations should be used. Installationshould be carried out generally asshown...

15 2.1.3 Gas connection The gas supply to this appliance mustbe installed in accordance with BS 6891(1988) and British Gas Publications UP1and UP2.Fit the 1/2” gas supply cock suppliedwith this unit immediately before the gascontrol. No heat or soldered jointsshould be applied in the vicinity of the...

16 2.2 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 hotwater can be drained for deaeration. The water heater is filledas soon as cold water flows from alltaps. 3. Close all hot water taps. 2.2.2 Putting int...

17 2.3 Removing andreplacing the controlpanel 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 theburner access opening and base tray. 3. Pull the lower end of the cover slightly...

19 2.7 Converting to another type of gas For conversion of the appliance fromnatural gas to another type of gas, orvisa versa, it is necessary to exchangethe pilot injector and the main injector.The conversion may only be executedby a qualfied competent person. Procedure:1. Shut the heater down. Clo...

20 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 brush5. Check the pilot burner and clean it if so required 6. Check the combustion ...

21 3. FOR THE USER 3.1 Commisioning Warning Installing and commissioning of this wa-ter heater should only be carried out bya 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 hotwater ca...

22 3.2 Fault overview Gas smell If you smell gas you should immediately close the main gas tap, you should not fight any fire or switch on light. electrical switches or bels. Open windows and immediately contact your installer or the local gas company Heater is Burner automat is in lock Reset burner...

= b r o w n= blue= yellow/green= black= w h i t e= red * = Optional APPENDIX 1 Connection diagram BTI models A = Ignition controller M = Remote button B = ON/OFF switch N = Terminal block C = Pilot burner P = Terminal block D = Spark electrode R = Earth terminals E = Flame probe S = Connector F = Tr...