BTI
Light commercial atmospheric
water heater
BTI - 65/85/100
Atmospheric water heater, primarily intended for light commercial /
industrial applications • Control, high limit and energy cut-off
thermostats to ensure safe operation • Safety sensor to prevent flue
spillage • Stainless-steel burner for natural or LP gas • Waterway
access cover for comprehensive waterside tank maintenance
• Replaceable magnesium anode • Fully automatic spark ignition
to minimise standing losses • General fault indicator light
• Optional ancillaries: Unvented kits • Destratification pump kit
• Powered anode • Time clock kit • Flue fan kit • Time clock
kit/7 day timer to minimise standing losses
Innovation has a name.
BTI
Technical specifications
Gas data natural gas 2H (G20)
Input*
kW
18.1
12.7
20
12
1.7
23.1
16.2
20
11,5
2,2
27.4
19.2
20
10
2.6
Output
kW
Inlet pressure
mbar
mbar
m3/h
mm
mm
°C
Burner pressure
Gas consumption**
Diameter pilot orifice
Diameter main orifice
Max. flue gas temperature
Flue gas discharge
0.56/0.41
3.4
0.56/0.41
3,9
0.56/0.41
4.5
265
27
275
55.2
275
53.2
kg/h
Gas data butane 3+ (G30)
Input*
Output
Inlet pressure
Burner pressure
Gas consumption**
Diameter pilot orifice
Diameter main orifice
Max. flue gas temperature
Flue gas discharge
kW
kW
17.2
12.3
30
21.8
15.7
30
29.6
21.2
30
mbar
mbar
kg/h
mm
mm
°C
-
-
-
1.3
0.23
1.9
265
-
1.6
0.23
2.2
275
81.1
2.2
0.23
2.5
275
74.8
kg/h
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
16.4
11.7
37
20.9
15
37
28.6
20.4
37
mbar
mbar
kg/h
mm
mm
°C
-
-
-
1.2
0.23
1.9
265
1,5
0.23
2.2
275
2,0
0.23
2.5
275
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
178
80
265
80
355
80
281
405
529
652
247
43
248
356
465
574
218
49
225
324
423
522
198
54
396
554
713
871
375
42
348
488
627
767
330
48
317
443
570
697
300
53
508
713
871
1070
399
53
447
612
777
992
351
61
406
556
706
856
319
67
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.
Electrical data
Power consumption
Power supply
W
VAC/Hz
30
230(-15/+10%) / 50
General
Anodes
-
1
8
382
Maximum working pressure
Maximum weight
bar
kg
266
499
Shipping data
Weight empty
Weight incl. packaging BTT / BTI
Width packaging
Height packaging
Depth packaging
kg
kg
mm
mm
mm
93
105
670
1690
730
122
140
780
1640
870
149
167
780
1830
870
BTI
Dimensions
A
B
D
E
1680
1510
520
1585
1450
645
1780
1640
675
655
770
775
G
K
M
N
R
100
340
1540
1540
295
130
340
1505
1505
285
130
340
1685
1685
285
S
1330
1280
1460
1
2
3
4
5
Cold water (external)
Hot water (external)
Gas control (internal)
Tank drain valve (internal)
T&P valve (internal)
3/4-14 NPT 1-11.5 NPT 11/4-11.5 NPT
3/4-14 NPT 1-11.5 NPT 11/4-11.5 NPT
Rp1/2
3/4-14 NPT
3/4-14 NPT
Dimensions in mm. All BTI water heaters receive a three years
warranty on the tank and one year on parts.
BTI
Installation diagram
3
4
5
6
9
T&P valve
Stop valve
Non-return valve
Circulation pump
Drain valve
Vented
10 Gas cock
11 Isolating valve
14 Hot water outlets
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 BTI 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.
BTI
Installation diagram
1
3
4
5
6
9
Pressure reducing valve
T&P valve
Unvented
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
A
B
C
D
Cold water
Hot water
Return circulation
Gas supply
A.O. Smith unvented system kits utilise combination valves.
A 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.
BTI
Electrical diagram BTI
A
B
C
D
E
Ignition controller
ON/OFF switch
Pilot burner
Spark electrode
Flame probe
F
Transformer flame detection
(optional)
G
Combustion products discharge
safety device
H
K
L
Control thermostat
Safety thermostat
Timer (optonal)
M
N
P
Remote button
Terminal block
Terminal block
R
Earth terminals
S
Connector to ignition controller
Gas control valve
Connection strip
Tank earth
T
U
V
W
X
Casing earth
Control panel base plate earth
For the parts numbers of components
please refer to the “Maintenance and
accessories” chapter.
|