A.O. Smith EQ - EQB User Manual
Innovation has a name.
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 for natural or LP gas • Optional ancillaries:
Unvented kits • Destratifi cation pump kit • Powered anode
• Time clock kit • Flue fan kit • Solenoid valve kit
EQ / EQB
Technical specifications
EQ 115
EQ 155
EQ 200
EQ 280
EQ 380
EQB 115
EQB 155
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. ue gas temperature °C 255 200 160 255 290 255 200 160
Gas data butane 3+ (G30)
Input* kW 10.1 12.2 17.6 21.8 29.6 10.1 12.2 17.6
Output kW 8.2 9.9 13.7 15.5 21.2 8.2 9.9 13.7
Inlet pressure mbar 30 30 30 30 30 30 30 30
Burner pressure mbar - - - - - - - Gas consumption** kg/h 0.7 0.9 1.3 1.6 2.2 0.7 0.9 1.3
Diameter pilot orifice mm 0.22 0.22 0.22 2 x 0.16 2 x 0.16 0.22 0.22 0.22
Diameter main orifice mm 1.40 1.50 1.95 2.20 2.50 1.40 1.60 1.95
Max. ue gas temperature °C 255 200 160 255 290 255 200 160
Gas data propane 3+ (G31)
Input* kW 9.8 11.8 17.2 20.9 26.6 9.3 11.7 17.6
Output kW 7.9 9.6 13.4 14.8 19.0 7.6 9.5 13.7
Inlet pressure mbar 37 37 37 37 37 37 37 37
Burner pressure mbar - - - - - - - Gas consumption** kg/h 0.7 0.8 1.2 1.5 1.9 0.7 0.8 1.2
Diameter pilot orifice mm 0.22 0.22 0.22 2 x 0.16 2 x 0.16 0.22 0.22 0.22
Diameter main orifice mm 1.40 1.50 1.95 2.20 2.50 1.40 1.60 1.95
Max. ue gas temperature °C 255 200 160 255 290 255 200 160
Draw-off capacity
Storage capacity l 109 144 181 265 355 109 144 181
Max. temperature setting °C 71 71 71 71 71 81 81 81
30 min. ∆T=44°C l 169 216 296 394 508 169 216 296
60 min. ∆T=44°C l 241 304 433 550 695 241 304 433
90 min. ∆T=44°C l 314 392 569 707 883 314 392 569
120 min. ∆T=44°C l 386 480 706 864 1070 386 480 706
Continuous ∆T=44°C l/h 144 175 273 313 375 144 175 273
Heating-up time ∆T=44°C min. 45 49 40 51 57 45 49 40
30 min. ∆T=50°C l 149 190 260 347 447 149 191 260
60 min. ∆T=50°C l 212 268 381 484 612 212 268 381
90 min. ∆T=50°C l 276 345 501 622 777 276 345 501
120 min. ∆T=50°C l 339 422 621 760 942 339 422 621
Continuous ∆T=50°C l/h 127 154 241 275 330 127 154 241
Heating-up time ∆T=50°C min. 51 56 45 58 65 51 56 45
30 min. ∆T=55°C l 135 173 237 315 406 135 173 237
60 min. ∆T=55°C l 193 243 346 440 556 193 243 346
90 min. ∆T=55°C l 251 313 455 565 706 251 313 455
120 min. ∆T=55°C l 309 384 565 691 856 309 384 565
Continuous ∆T=55°C l/h 116 140 219 250 300 116 140 219
Heating-up time ∆T=55°C min. 57 62 50 63 71 57 62 50
General
Anodes - 1 1
Maximum working pressure bar 8 8
Maximum weight kg 156 196 256 382 499 156 196 256
EQB 200
Shipping data
Weight empty kg 47 52 75 117 144 47 52 75
Weight incl. packaging kg 51 57 81 135 162 51 57 81
Width packaging mm 530 580 570 780 780 530 580 570
Height packaging mm 1140 1250 1580 1640 1830 1140 1250 1580
Depth packaging mm 570 630 650 870 870 570 630 650
* Gas data on gross value
** Gas consumption at 15°C and 1013.25 mbar
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