Page 1
Innovation has a name.
Burkay - Genesis
Semi-Instantaneous Copper
High Flow Water Heater
GWV - 120/150/200
Fully room-sealed water heater with an effi cient copper heat
exchanger for a long life • High inputs to supply the most demanding
applications • Effi ciency: 81% (gross) • Compact design allows
large output from small foot print • Premix burner for low NOx
emissions • Suitable for natural or LP gas • Units can be fl ued with
either extensive conventional atmospheric or a room-sealed fl ue
system allowing total fl exibility of siting • ThermoControl provides
easy and fl exible control/fault diagnosis • Remote control connection
• Voltage-free contact for general fault indication • Programmable
for legionella purge cycle • Unvented kits available • Unit is
supplied with pump and fl ow-switch
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Burkay - Genesis
Technical specifications
GWV 120
GWV 150
Gas data natural gas 2H (G20)
Input* kW 122.2 152.1 194.3
Output kW 99.0 123.3 157.5
Inlet pressure mbar 20 20 20
Burner pressure (Full Power) mbar 2 x 8.9 2 x 9.3 2 x 8.0
Gas consumption (Full Power)** m
Diameter main orifice mm 2.31 2.31 2.31
Burners - 8 10 15
Max. flue gas temperature °C 130 130 130
Flue gas discharge (Full Power) kg/h 211.3 278.7 343.8
3
/h 11.6 14.5 18.5
Gas data propane gas 3P (G31)
Input* kW 108.7 135.9 212
Output kW 90.0 112.5 175.5
Inlet pressure mbar 37 37 37
Burner pressure (Full Power) mbar 2x 13.3 2x 12.7 2x 14.5
Gas consumption (Full Power)** m
Diameter main orifice mm 1.50 1.50 1.50
Burners - 8 10 15
Max. flue gas temperature °C 130 130 130
Flue gas discharge (Full Power) kg/h 208 268 369
3
/h 7.8 9.7 15.1
Draw-off capacity***
Max. temperature setting °C 85 85 85
Continuous ∆T=44°C l/h 1935 2410 3078
Continuous ∆T=50°C l/h 1703 2121 2709
Continuous ∆T=55°C l/h 1548 1928 2463
Electrical data
Power consumption W 200 210 350
Power supply VAC/Hz 230 (-15/+10%) / 50 (+/- 1 Hz)
GWV 200
General
Fan rotational speed at ignition r.p.m. 1620 1500 1800
Half load fan speed r.p.m. 2040 2340 2460
Full load fan speed r.p.m. 2340 2700 2820
Pressure differential Pa 80/66 89/75 107/192
Maximum working pressure bar 8
Transport
Weight empty kg 225 250 300
Weight incl. packaging kg 250 275 325
Width packaging mm 795 795 795
Height packaging mm 1075 1075 1075
Depth packaging mm 1605 1760 2165
* Gas data on gross value
** Gas consumption at 15°C and 1013.25 mbar
*** Draw-off capacities are based on the capacity of the heat exchanger
A Burkay - Genesis water heater should be installed in combination with a storage tank
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Burkay - Genesis
Dimensions
Top view
Side view
GWV 120
GWV 150
GWV 200
A 835 835 835
B 350 350 350
C 910 1065 1465
D 1230 1495 1895
E 625 625 625
F 150 150 200
G 150 150 200
H 300 300 480
I 160 240 260
J 185 185 185
K 760 760 760
L 345 345 345
M 1500 1680 2100
1 Cold water R11/2 R2 R2
2 Hot water Rp1
1
/2 Rp2 Rp2
3 Gas control R1” R1” R1”
4 Tank drain valve
3
/4” 3/4” 3/4”
5 Pressure valve
3
/4” 3/4” 3/4”
Dimensions in mm.
All Burkay - Genesis water heaters receive a
fi ve years warranty on the heat exchanger.
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Burkay - Genesis
Installation diagrams
1 Pressure reducing valve
4 Stop valve
5 Non-return valve
6 Circulation pump
9 Drain valve
10 Gas cock
11 Isolating valve
12 Temperature gauge
14 Hot water outlets
15 Expansion relief valve
16 Expansion vessel
17 Three way valve
18 Water tank
19 Float valve
23 Pressure valve
A Cold water
B Hot water
C Return circulation
D Gas supply
E Overfl ow pipe
H Expansion vent pipe
A.O. Smith unvented system kits
utilise combination valves.
Further installation and connection
details can be found in the Installation &
Commissioning Manual.
Vented
Unvented
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Burkay - Genesis
Electrical scheme
TERMINAL STRIP CONNECTIONS
Earth
N Neutral
L Phase input of controller
L1 Phase input of system pump
L2 Phase input of program-controlled
pump
COMPONENTS
A Controller
B Ionisation rod
C Glow igniter
D Gas control 1
E Gas control 2
F Display
G Fan
H External on/off
J n/a
K Error signal
L n/a
M Optional pump
N System pump
P Double-pole mains switch
Q I/O switch control
R Temperature sensor
(T1 - inlet heat exchanger)
S Dummy
T Temperature sensor (T3 - Tank)
U Temperature sensor
(T2 - outlet heat exchanger)
V Selection resistor
W Air pressure switch
X Flow switch
CONTROLLER CONNECTIONS
J2 Connector for power supply
to controller
J19 Connector for system pump
J20 Connector for gas control
J21 Connector for program-controlled
pump and error signal
J29 Connector for room-thermostat
(230VAC)
J33 Connector for fan control signal
J36 Connector for display to controller
JP2 Connector for ionisation rod
and glow igniter
JP3 Connector for temperature sensor T1
JP4 Connector for dummy
JP5 Connector for temperatures
sensors T2 and T3
JP6 Connector for selection resistor,
air pressure switch
JP8 Connector for extra
ON mode switch
JP12 Connector for flow switch
F1 Fuse
F3 Fuse
Page 6
Flue systems Burkay - Genesis
Installation options
A Burkay – Genesis water heater should be installed according
category B23*, C13 or C33.
C13
Parallel
GWV 120
Diameter (mm) 150 150 200
Max. length not insulated (m) 8 8 8
Max. length not insulated with
condense drain (m) 20 20 20
Max. length insulated (m) 20 20 20
Max. bends 2 2 2
* Please contact A.O. Smith when installing a Burkay - Genesis in a B23 situation.
** When applying a condensation outlet, the distance between the condensation
outlet and the unit may not exceed 8 metres.
GWV 150
GWV 200
The maximum length also applies in B23 installations with
different supply and flue duct lengths.
Note: horizontal flue runs must be installed with a fall of at
least 5 mm per metre towards the water heater.
C33
Flue systems Burkay - Genesis
Minimum space requirements
GWV 120
Minimal space for wall duct (mm)
V 605 605 1070
W 940 940 1485
X 1245 1245 1495
Y 1090 1090 1090
Minimal space for roof duct (mm)
V 1950 1950 2370
W 1340 1340 1375
X 2395 2395 2780
X ** 1445 1445 1830
Y 1560 1560 1945
Y ** 610 610 995
2 x Ø150 2 x Ø150 2 x Ø200
GWV 150
GWV 200
For the parts numbers of components and flue gas ducts, etc.
please refer to the “Maintenance and accessories” chapter.
** Distance without concentric pipe between appliance and roof duct.
Data subject to change INT/1108/GWV/02
Terms and conditions apply, please refer to our website.
www.aosmithinternational.com
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