A.O. Smith EQ 115 Bedienungsanleitung

Innovation has a name.

EQ / EQB

Gas-ﬁred residential / light

commercial water heater

EQ - 115/155/200/280/380

EQB - 115/155/200

Atmospheric water heater with thermal ﬂue 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

EQB 200

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

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

EQ / EQB

Dimensions

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 control Rp 1/2

4 Tank drain valve 3/4 - 14 NPT

5 T&P valve 3/4 - 14 NPT

Dimensions in mm. All EQ water heaters receive a ﬁve years

warranty on the tank and one year on parts. All EQB water

heaters have a one year warranty period.

EQ/EQB 115

EQ/EQB 155

EQ 200

EQB 200

EQ 280

EQ 380

www.aosmithinternational.com

Data subject to change INT/0808/EQ/02

Terms and conditions apply, please refer to our website.

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 should be

installed in accordance with local

standards and ventilation requirements

(category B11BS).

Further installation and connection

details can be found in the Installation

& Commissioning Manual.

For the parts numbers of components

please refer to the “Maintenance and

accessories” tab.

EQ / EQB

Installation diagrams

EQ / EQB

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