Equipment Overview Logamax Plus Gb162-50, Gb162-65, Gb162-80 And Gb162-100 - Buderus Logamax plus GB162 Technical Manual

2 Technical description
2.1.3

Equipment overview Logamax plus GB162-50, GB162-65, GB162-80 and GB162-100

VK AKO
Fig. 5 Key components and assemblies Logamax plus
GB162-50/65/80/100 (connections not visible
fig. 9, page 14)
AKO Condensate outlet (not visible)
GAS Gas connection (not visible)
RK Boiler return (not visible)
VK Boiler flow (not visible)
1 Boiler flue connection (flue outlet)
2 Gas valve
3 Fan
4 Venturi nozzle
5 Ceramic linear radiant burner
6 Ionisation electrode
7 Incandescent ignition electrode
8 ALUplus heat exchanger
9 Slot, for example for RC35 programming unit (in the door)
10 Universal burner control unit UBA3.5
The wall mounted Logamax plus GB162-50/65/80/100
gas condensing boilers have been tested in compliance
with the Gas Appliances Directive 90/396/EEC. The
requirements of standards EN 483 and EN 677 were
taken into consideration. The Logamax plus
GB162-50/65/80/100 gas condensing boilers can be
operated with natural gas II
12
GAS RK
6 720 642 463-05.1il
.
2ELL
Boiler block, burner and heat exchanger
1
• Internal sealed combustion chamber
• Ceramic premix gas burner
2
• ALUplus heat exchanger with high quality condensing
3
heating surface with plasma polymerisation for:
– Compact dimensions, yet high output
4
– Long service life through improved resistance
5 – Permanently high efficiency, as contamination is
prevented
6
– Low maintenance operation with quick and simple
maintenance
7
– Optimised flow technology within the heat
8
exchanger pipes through new internal pattern
• KombiVENT gas:air unit comprising a fan, gas valve,
gas nozzle and venturi nozzle
• Flame monitoring system
• 120 V incandescent ignition
Hydraulic components
• Pump connection assembly for direct connection to
9
the boiler including:
10
– Modulating pump UPER 25-80
– Safety valve (3 bar) (4 bar available as an
accessory), gas tap, shut-off valves
– Check valve, pressure gauge, connection for
external diaphragm expansion vessel (MAG), drain &
fill valve (FE), insulation
• Possible external pumps are as follows:
– Grundfos UPM 25-70 high efficiency pump,
output-dependent control for GB162-50
– Grundfos Magna 25-60 high efficiency pump
Δp-controlled for GB162-50/65
– Wilo Stratos 25/1-8 high efficiency pump with
output-dependent control for
GB162-50/65/80/100
– Grundfos UPER 25-80 pump with
output-dependent control for
GB162-50/65/80/100
• Safety valve (response pressure 4 bar)
- optional replacement for the pump connection
assembly
• Siphon (not part of the standard boiler delivery)
Control components
• Universal burner control unit UBA3.5
• Logamatic BC10 base controller
6 720 645 821 (2010/09) – Logamax plus GB162