A.O. Smith BFC - 100, BFC - 50, BFC - 28 User Manual

Innovation has a name.

Cyclone BFC

Condensing Glass-Lined Water Heater

BFC - 28/30/50/60/80/100

Fully room-sealed condensing high-efﬁ ciency water heater (95%gross)

• Flexible ﬂ ue options (maximum length 115 m) allows installation almost anywhere • ThermoControl for easy ﬂ exible control/fault diagnosis • Meets latest EPC standards: Cyclone BFC 28-60: 0.902

• Utilises premix Low-NOx burner BFC 80/100 • Patented Cyclone burner BFC28-60 • All models suitable for natural or LP gas

• Programmable for legionella purge cycle • Scale formation is

reduced through the improved design and location of the heat

exchanger • Cyclone BFC 80/100: comes as standard with powered anodes to reduce maintenance requirements • Remote control connection • Voltage-free contact for general fault indication

• Optional ancillaries: Unvented kits • Destratiﬁ cation pump kit

• Powered anodes

Meets EPC standards

Cyclone BFC

Technical speciﬁcations

BFC 28

BFC 30

BFC 50

BFC 60

BFC 80

BFC 100

Gas data natural gas 2H (G20)

Input* kW 32.1 34.5 52.6 63.2 86.6 105.5 Output kW 30.5 32.7 48.8 59.6 81.9 99.8 Inlet pressure mbar 20 20 20 20 20 20 Burner pressure mbar 8.5 8.5 8.5 11.5 7.0 6.0 Gas consumption** m Diameter main oriﬁce mm 4.90 5.10 7.00 7.10 6.30 6.80 Max. ﬂue gas temperature °C 70 50 75 75 50 50 Flue gas discharge kg/h 56.8 61.1 85.4 101.4 141.9 164.3

/h 3.1 3.3 5.0 6.0 8.3 10.1

Gas data butane 3+ (G30)

Input* kW 30.7 32.8 50.6 59.4 - Output kW 29.8 31.8 48.1 57.4 - Inlet pressure mbar 30 30 30 30 - Burner pressure mbar 30 30 30 30 - Gas consumption** kg/h 2.2 2.4 3.7 4.3 - Diameter main oriﬁce mm 2.50 2.60 3.40 3.80 - Max. ﬂue gas temperature °C 70 50 75 75 - Flue gas discharge kg/h 60.0 62.2 86.0 101.9 - -

Gas data propane 3+ (G31)

Input* kW 29.0 30.9 50.3 59.1 84.8 Output kW 28.1 29.8 47.7 56.9 81.9 Inlet pressure mbar 37 37 37 37 37 Burner pressure mbar 37 37 37 37 13.0 Gas consumption** kg/h 2.1 2.2 3.6 4.2 6.1 Diameter main oriﬁce mm 2.50 2.60 3.40 3.80 4.70 Max. ﬂue gas temperature °C 70 50 75 75 50 Flue gas discharge kg/h 54.3 56.5 85.1 101.0 142.1

***

103.3

***

99.8

***

13.0

***

7.4

***

5.10

***

176.4

***

Draw-off capacity

Storage capacity l 217 368 368 368 460 460 Max. temperature setting °C 80 80 80 80 80 80

= 10ºC / T

cold

30 min. ∆T=44°C l 505 689 831 925 1222 1379 60 min. ∆T=44°C l 802 1008 1308 1507 2023 2354 90 min. ∆T=44°C l 1100 1327 1785 2089 2823 3329 120 min. ∆T=44°C l 1398 1646 2262 2671 3623 4304 Continuous ∆T=44°C l/h 595 638 954 1164 1601 1950 Heating-up time ∆T=44°C min. 22 35 23 19 17 14 30 min. ∆T=50°C l 444 606 731 814 1076 1214 60 min. ∆T=50°C l 707 887 1151 1326 1780 2072 90 min. ∆T=50°C l 968 1168 1571 1839 2484 2929 120 min. ∆T=50°C l 1230 1449 1991 2351 3189 3787 Continuous ∆T=50°C l/h 524 562 840 1024 1409 1716 Heating-up time ∆T=50°C min. 25 39 26 22 20 16 30 min. ∆T=55°C l 404 551 665 740 978 1109 60 min. ∆T=55°C l 642 806 1046 1206 1618 1883 90 min. ∆T=55°C l 880 1062 1418 1671 2258 2663 120 min. ∆T=55°C l 1118 1317 1810 2137 2899 3443 Continuous ∆T=55°C l/h 476 511 763 931 1281 1560 Heating-up time ∆T=55°C min. 27 43 29 24 22 18

set

= 70ºC

Electrical data

Power consumption W 275 275 275 275 625 710 Power supply VAC/Hz 230 (-15/+10%). 50 (+/-1Hz)

General

Fan rotational speed at ignition r.p.m. 4500 4500 4500 4500 2790 3120 Working speed of fan r.p.m. 5000 5400 6000 6660 5100 5700 Pressure differential Pa 635/605 855/825 885/855 1085/1055 1005/975 1145/1115 Diameter of air restrictor mm 23 23 28 29 36 38 Anodes - 4 4 4 4 2 2 Maximum working pressure bar 8

Shipping data

Weight empty kg 177 214 214 214 480 480 Maximum weight kg 394 582 582 582 940 940 Weight incl. packaging kg 197 234 234 234 491 491 Width packaging mm 790 790 790 790 920 920 Height packaging mm 1550 2080 2080 2080 2060 2060 Depth packaging mm 950 950 950 950 1020 1020

*** 3P (G31)

* Gas data on gross value

** Gas consumption at 15°C and 1013.25 mbar

+ 4 hidden pages