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10 | Product Description2.9.2 Technical DataDescription SB625WS SB745WS160 220 290 370 480 640 800 1050 1300 1550Fuel Gas Gas Gas Gas Gas Gas Gas Gas Gas GasRated input (Nat. Gas)Rated input (#2 Oil)Gross outputSensible losses fromstackJacket losses with burnermountedFlue gas temperature(T)Flue gas mass flow rate 1Fireside pressure drop 2Firebox volumeTotal volume of flue gassideHeat exchanger surfaceareaSpecific heat loadMaximum condensateproductionMaximum workingpressureMaximum admissibletemperatureMaximum workingtemperaturePressure drop T50 °F (10 °C)Pressure drop T68 °F (20 °C)Water capacityMBH(kW)GPH(LPH)MBH(kW)563(164.9)4.0(15.1)544(159.7)788(230.9)5.6(21.2)762(223.6)1014(297.1)7.2(27.3)990(290.2)1314(385.0)9.3(35.2)1280(375.2)1689(494.9)12.0(45.4)1642(481.5)2200(644.7)15.7(59.4)2190(642.0)3003(880.0)21.4(81.0)2738(802.4)3754(1100.0)26.8(101.4)3650(1070.0)4692(1375.0)33.5(126.8)4563(1337.4)% 1.7 1.7 1.5 1.5 1.9 1.9 1.9 1.9 1.9 1.9% 0.3 0.3 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6°F(°C)lbs/sec(kg/sec)InchW.C(mbar)Ft3(dm3)Ft3(dm3)Ft2(m2)MBH/ft2(kw/m2)Gal/h(l/h)PSI(bar)°F(°C)°F(°C)Ft. Hd.(mbar)Ft. Hd.(mbar)Gal(l)< 113 - 167(< 45 - 75)0.15(0.07)0.802(2.0)6.07(172)8.93(253)65.65(6.1)8.28(26.18)4.86(18.4)80(5.5)230(110)210(98.8)5.0(150.1)1.2(36.3)85.3(323)0.19(0.09)1.083(2.7)6.07(172)9.78(277)94.72(8.8)8.04(25.40)7.23(27.4)80(5.5)230(110)210(98.8)3.3(100.4)0.9(28.4)95.1(360)< 113 - 167(< 45 - 75)0.26(0.12)1.284(3.2)8.51(241)14.58(413)139.93(13.0)7.07(22.32)8.42(31.9)80(5.5)230(110)210(98.8)4.1(121.5)1.0(30.6)130.7(495)0.33(0.15)1.846(4.6)9.85(279)17.02(482)175.45(16.3)7.29(23.01)10.80(40.9)80(5.5)230(110)210(98.8)4.3(128.7)0.9(28.7)146.6(555)Table 5 Technical Data1. Depends on return temperature 86-140 °F (30-60 °C)2. At maximum output with water temps supply/return of 176/140 °F (80/60 °C) and CO2 = 9.7 %< 113 - 167(< 45 - 75)0.44(0.20)2.007(5.0)15.61(442)26.03(737)234.65(21.8)6.99(22.08)13.78(52.2)80(5.5)230(110)210(98.8)1.0(30.2)0.3(8.5)196.2(743)0.57(0.26)2.208(5.5)17.51(496)30.37(860)310.00(28.8)7.06(22.29)19.49(73.8)80(5.5)230(110)210(98.8)1.1(33.8)0.3(9.0)203.4(770)< 113 - 167(< 45 - 75)0.72(0.33)2.288(5.7)26.59(753)45.55(1290)426.25(39.6)6.42(20.26)23.24(88.0)80(5.5)230(110)210(98.8)1.5(46.4)0.4(13.4)348.7(1320)0.94(0.43)2.529(6.3)30.15(854)51.34(1454)500.52(46.5)7.29(23.01)29.42(111.4)80(5.5)230(110)210(98.8)1.8(54.0)0.5(16.3)368.5(1395)< 113 - 167(< 45 - 75)1.19(0.54)2.729(6.8)36.62(1037)62.25(1763)604.93(56.2)7.54(23.79)35.05(132.7)80(5.5)230(110)210(98.8)1.2(36.0)0.3(10.2)482.1(1825)5443(1595.0)38.8(146.9)5293(1551.4)1.38(0.63)2.970(7.4)44.10(1249)74.05(2097)670.37(62.2)7.89(24.94)42.13(159.5)80(5.5)230(110)210(98.8)1.4(43.2)0.4(11.3)501.9(1900)6 720 805 218 (2013/02)SB625WS/SB745WS