Buderus Logamax plus GB162 Technical Manual page 3

6.2.3 Underfloor heating system . . . . . . . . . . . . . . . . . 58
6.2.4 Heating circuit pumps for the Logamax
plus GB162 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
6.2.5 Diaphragm expansion vessel . . . . . . . . . . . . . . . 65
6.3 Hydraulic boiler schemes for appliances
with integral 3-way diverter valve . . . . . . . . . . . .67
6.3.1 System example for a single boiler system,
Logamax plus GB162-15/25/35 with RC25
or RC35 programming unit for one heating
circuit with separate DHW heating . . . . . . . . . . .67
6.3.2 System example for a single boiler system,
Logamax plus GB162-25 T40S with RC25
or RC35 programming unit for one heating
circuit with integral DHW heating . . . . . . . . . . . .68
6.3.3 System example for single boiler system,
Logamax plus GB162-15/25 and
GB162-25 T40S with RC35 programming
unit for one heating circuit without mixer
and one heating circuit with mixer with the
same time channel (as option with system
separation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
6.3.4 System example for the Logamax plus
GB162-15/25 with low loss header, one
heating circuit without mixer, one underfloor
heating circuit with mixer and separate DHW
heating via 3-way diverter valve . . . . . . . . . . . . . .70
6.3.5 System example for the Logamax plus
GB162-15/25/35 with low loss header,
one heating circuit without mixer, one underfloor
heating circuit with mixer and
DHW heating via cylinder primary pump
(maximum equipment level with the RC35
and RC25 programming units) . . . . . . . . . . . . . .71
6.3.6 System example for the Logamax plus
GB162-15/25/35 with one heating circuit
without mixer directly downstream, solar
DHW heating and DHW reheating via
3-way diverter valve . . . . . . . . . . . . . . . . . . . . . . .72
6.3.7 System example for the Logamax plus
GB162-15/25/35 with solar central
heating backup and one heating circuit
with mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
6.3.8 System example for the Logamax plus
GB162-15/25/35/45 with Logamatic
4121, solid fuel boiler and one heating
circuit with mixer . . . . . . . . . . . . . . . . . . . . . . . . . .74
6.3.9 System example for the Logamax plus
GB162-15/25/35 with solar DHW heating and
central heating backup, solid fuel boiler and one
heating circuit with mixer, buffer
cylinder/Thermosiphon buffer cylinder and
freshwater module . . . . . . . . . . . . . . . . . . . . . . . .75
6.4 Hydraulic boiler schemes for appliances without
3-way diverter valve . . . . . . . . . . . . . . . . . . . . . . .76
6.4.1 System example for Logamax plus
GB162-45 with internal pump, RC35
programming unit, 3-way diverter valve
and direct heating circuit without mixer . . . . . . .76
6.4.2 System example for Logamax plus
GB162-45 with low loss header, maximum
version for the installation with EMS module
inside the boiler and with RC35 or RC25
programming unit . . . . . . . . . . . . . . . . . . . . . . . . .77
6 720 645 821 (2010/09) - Logamax plus GB162
6.4.3 System example for Logamax plus
GB162-50/65 with DHW heating
via a 3-way valve kit, RC35 programming
unit and direct heating circuit without mixer . . . 78
6.4.4 System example for the Logamax plus
GB162-50/65/80/100 with DHW heating
via a 3-way diverter valve, RC35
programming unit and direct heating
circuit without mixer . . . . . . . . . . . . . . . . . . . . . . 79
6.4.5 System example for the Logamax plus
GB162-65/80/100 with low loss header and
RC35 programming unit, one heating circuit
without mixer, two heating circuits
with mixers and DHW heating via a
cylinder primary pump . . . . . . . . . . . . . . . . . . . . . 80
6.4.6 System example for the Logamax plus
GB162-45 and GB162-50/65/80/100
with Logamatic 4121, maximum standard
equipment level with two heating circuits
with mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
6.4.7 System example for the Logamax plus
GB162-50/65/80/100 in a 2-boiler
cascade, one heating circuit with mixer
and one without, DHW heating via cylinder
primary pump and use of a pump
assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
6.4.8 System example for the Logamax plus
GB162-50/65/80/100 in a 2-boiler
cascade, one heating circuit with mixer
and one without, DHW heating via cylinder
primary pump and use of a pump
assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
6.4.9 System example for the Logamax plus
GB162-50/65 and GB162-50/65/80/100
in a 2-boiler cascade with two heating
circuits with mixer . . . . . . . . . . . . . . . . . . . . . . . . 84
7 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.1 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.1.1 Condensate drain from the condensing
boiler and the flue . . . . . . . . . . . . . . . . . . . . . . . . 86
7.1.2 Condensate drain from a moisture-
resistant chimney . . . . . . . . . . . . . . . . . . . . . . . . . 86
8 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
8.1 Selection aid for connection accessories
Logamax plus GB162-15, GB162-25,
GB162-35 and GB162-25 T40S . . . . . . . . . . . 87
8.2 Selection aid for connection accessories
Logamax plus GB162-45 . . . . . . . . . . . . . . . . . . 91
8.3 Selection aid for connection accessories
Logamax plus GB162-50/65/80/100 . . . . . . . . 94
8.4 Heating circuit quick installation systems . . . . . 98
8.5 Heat exchanger recognition set for gas
condensing boilers . . . . . . . . . . . . . . . . . . . . . . 103
8.6 Transferable output of the heating circuit
quick installation sets . . . . . . . . . . . . . . . . . . . . 105
8.7 Heat meter set . . . . . . . . . . . . . . . . . . . . . . . . . . 105
8.8 Cascade units Logamax plus
GB162-50, GB162-65, GB162-80 and
GB162-100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
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