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 sacrificial 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 • Destratification pump kit • Powered anode
• Time clock kit • Flue fan kit • Solenoid valve kit
Innovation has a name.
EQ / EQB
Technical specifications
Gas data natural gas 2H (G20)
Input*
kW
kW
9.3
7.4
20
11.3
9.0
20
12.5
1.1
18.3
14.0
20
10.5
1.7
23.1
16.0
20
11.5
2.2
27.4
19.2
20
10.0
2.6
9.3
7.4
20
11.3
9.0
20
12.5
1.1
18.3
14.0
20
10.5
1.7
Output
Inlet pressure
mbar
mbar
m3/h
mm
mm
°C
Burner pressure
Gas consumption**
Diameter pilot orifice
Diameter main orifice
Max. flue gas temperature
12.5
0.9
2 x 0.27
2.35
255
12.5
0.9
2 x 0.27
2.35
255
2 x 0.27
2.60
200
2 x 0.27
3.5
2 x 0.27
3.9
2 x 0.27
4.5
2 x 0.27
2.60
200
2 x 0.27
3.5
160
255
290
160
Gas data butane 3+ (G30)
Input*
Output
Inlet pressure
Burner pressure
Gas consumption**
Diameter pilot orifice
Diameter main orifice
Max. flue gas temperature
kW
kW
10.1
8.2
30
12.2
9.9
30
17.6
13.7
30
21.8
15.5
30
29.6
21.2
30
10.1
8.2
30
12.2
9.9
30
17.6
13.7
30
mbar
mbar
kg/h
mm
mm
°C
-
-
-
-
-
-
-
-
0.7
0.22
1.40
255
0.9
0.22
1.50
200
1.3
1.6
2.2
0.7
0.22
1.40
255
0.9
0.22
1.60
200
1.3
0.22
1.95
160
2 x 0.16
2.20
255
2 x 0.16
2.50
290
0.22
1.95
160
Gas data propane 3+ (G31)
Input*
Output
Inlet pressure
Burner pressure
Gas consumption**
Diameter pilot orifice
Diameter main orifice
Max. flue gas temperature
kW
kW
9.8
7.9
37
11.8
9.6
37
17.2
13.4
37
20.9
14.8
37
26.6
19.0
37
9.3
7.6
37
11.7
9.5
37
17.6
13.7
37
mbar
mbar
kg/h
mm
mm
°C
-
-
-
-
-
-
-
-
0.7
0.22
1.40
255
0.8
0.22
1.50
200
1.2
1.5
1.9
0.7
0.22
1.40
255
0.8
0.22
1.60
200
1.2
0.22
1.95
160
2 x 0.16
2.20
255
2 x 0.16
2.50
290
0.22
1.95
160
Draw-off capacity
Storage capacity
Max. temperature setting
30 min. ∆T=44°C
60 min. ∆T=44°C
90 min. ∆T=44°C
l
°C
l
l
l
l
l/h
min.
l
l
l
l
l/h
min.
l
l
l
l
109
71
144
71
181
71
265
71
355
71
109
81
144
81
181
81
169
241
314
386
144
45
149
212
276
339
127
51
135
193
251
309
116
57
216
304
392
480
175
49
190
268
345
422
154
56
173
243
313
384
140
62
296
433
569
706
273
40
260
381
501
621
241
45
237
346
455
565
219
50
394
550
707
864
313
51
347
484
622
760
275
58
315
440
565
691
250
63
508
695
883
1070
375
57
447
612
777
942
330
65
406
556
706
856
300
71
169
241
314
386
144
45
149
212
276
339
127
51
135
193
251
309
116
57
216
304
392
480
175
49
191
268
345
422
154
56
173
243
313
384
140
62
296
433
569
706
273
40
260
381
501
621
241
45
237
346
455
565
219
50
120 min. ∆T=44°C
Continuous ∆T=44°C
Heating-up time ∆T=44°C
30 min. ∆T=50°C
60 min. ∆T=50°C
90 min. ∆T=50°C
120 min. ∆T=50°C
Continuous ∆T=50°C
Heating-up time ∆T=50°C
30 min. ∆T=55°C
60 min. ∆T=55°C
90 min. ∆T=55°C
120 min. ∆T=55°C
Continuous ∆T=55°C
Heating-up time ∆T=55°C
l/h
min.
General
Anodes
-
1
8
256
1
8
196
Maximum working pressure
Maximum weight
bar
kg
156
196
382
499
156
256
Shipping data
Weight empty
Weight incl. packaging
Width packaging
Height packaging
Depth packaging
kg
kg
mm
mm
mm
47
51
530
1140
570
52
57
580
1250
630
75
81
570
1580
650
117
135
780
1640
870
144
162
780
1830
870
47
51
530
1140
570
52
57
580
1250
630
75
81
570
1580
650
*
Gas data on gross value
** Gas consumption at 15°C and 1013.25 mbar
EQ / EQB
Dimensions
EQ / EQB
A
B
1280
1120
465
545
80
1370
1210
515
1600
1440
515
1670
1540
515
1585
1450
645
1780
1640
675
D
E
595
595
605
735
765
G
K
M
N
R
80
100
100
130
130
325
1180
1180
230
945
325
325
380
375
375
1270
1270
230
1500
1500
230
1590
1590
255
1505
1505
285
1685
1685
285
S
1030
1265
1380
1280
1460
1
2
Cold water
Hot water
3/4 - 14 NPT
(EQ 280: 1 -11.5 NPT)
(EQ 380: 1 1/4 - 11.5 NPT)
3/4 - 14 NPT
(EQ 280: 1-11.5 NPT)
(EQ 380: 1 1/4 -11.5 NPT)
Rp 1/2
3/4 - 14 NPT
3/4 - 14 NPT
3
4
5
Gas control
Tank drain valve
T&P valve
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
Installation diagrams
EQ / EQB
1
3
4
5
6
9
Pressure reducing valve
T&P valve
Stop valve
Non-return valve
Circulation pump
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
B
C
D
E
Cold water
Hot water
Return circulation
Gas supply
Overflow pipe
Expansion vent pipe
H
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.
|