A.O. Smith EQ / EQB دليل المستخدم

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EQ / EQB
Gas-fi red residential / light
commercial water heater
EQ - 115/155/200/280/380
EQB - 115/155/200
Atmospheric water heater with thermal fl ue spillage protection
and piezo ignition • Low noise level, suitable for installation in
most locations • Ring base for easy installation and lower heat
losses • Replaceable magnesium sacrifi cial anode • Safety
thermostat • EQ 280/380 have access covers for waterside tank
maintenance • EQB: maximum temperature setting of 81°C
• Suitable fo

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EQ / EQB Technical specifications Gas data natural gas 2H (G20) Input* kW 9.3 11.3 18.3 23.1 27.4 9.3 11.3 18.3 Output kW 7.4 9.0 14.0 16.0 19.2 7.4 9.0 14.0 Inlet pressure mbar 20 20 20 20 20 20 20 20 Burner pressure mbar 12.5 12.5 10.5 11.5 10.0 12.5 12.5 10.5 Gas consumption** m3/h 0.9 1.1 1.7 2.2 2.6 0.9 1.1 1.7 Diameter pilot orifice mm 2 x 0.27 2 x 0.27 2 x 0.27 2 x 0.27 2 x 0.27 2 x 0.27 2 x 0.27 2 x 0.27 Diameter main orifice mm 2.35 2.60 3.5 3.9 4.5 2.35 2.60 3.5 Max. flue gas

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EQ / EQB Dimensions EQ / EQB A 1280 1370 1600 1670 1585 1780 B 1120 1210 1440 1540 1450 1640 D 465 515 515 515 645 675 E 545 595 595 605 735 765 G 80 80 100 100 130 130 K 325 325 325 380 375 375 M 1180 1270 1500 1590 1505 1685 N 1180 1270 1500 1590 1505 1685 R 230 230 230 255 285 285 S 945 1030 1265 1380 1280 1460 1 Cold water 3/4 - 14 NPT (EQ 280: 1 -11.5 NPT) (EQ 380: 1 1/4 - 11.5 NPT) 2 Hot water 3/4 - 14 NPT (EQ 280: 1-11.5 NPT) (EQ 380: 1 1/4 -11.5 NPT) 3 Gas contro

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EQ / EQB Installation diagrams EQ / EQB 1 Pressure reducing valve 3 T&P valve 4 Stop valve 5 Non-return valve 6 Circulation pump 9 Drain valve 10 Gas cock 11 Isolating valve 14 Hot water outlets 15 Expansion relief valve 16 Expansion vessel 17 Three way valve 18 Water tank 19 Float valve A Cold water B Hot water C Return circulation D Gas supply E Overflow pipe H Expansion vent pipe A.O. Smith unvented system kits utilise combination valves. An EQ / EQB water heater shoul