Download Installation instructions

Installation
6.4.4
Installing the heating supply and return
pipe
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1
8
9
6
3
5
6.4.5 Installing the pump
Always use the supplied Buderus pump group and the
low loss header when installing a single boiler so correct
flows are guaranteed. It is not necessary to install a low
loss header for cascade systems.
• Install the pump (fig. 12, [8]) in the return circuit
(fig. 12, [2]).
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3
11
6
6.4.6
12
Installing the condensate trap
WARNING:
Danger of fatal accident due to poisoning
7
B If the condensate trap is not filled with
water, flue gas can escape and put
people's lives at risk.
10
3
3
6720645916-12.1TD
Fig. 12 Connecting the boiler supply and return
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11
12
Supply
Return
Isolating valves
Drain cock
Gas valve
Pressure relief valve
Condensate trap
Pump
Non-return valve
Dirt filter (for example scale cartridge or y-strainer)
Gas supply
Air gap > 1" (25.4 mm)
NOTICE
B When using plastic pipes, observe the
supplier’s instructions - especially those
referring to recommended jointing
techniques and the notes relating to the
heating system water on page 9.
6 720 646157-13.1TD
Fig. 13 Filling the condensate trap with water
• Fill the condensate trap (supplied with the boiler) with
water (fig. 13).
High temperature applications:
NOTICE
B To prevent contamination in the heating
system we recommend you integrate a
dirt filter (fig. 12, [10) in the return pipe,
near the boiler. In an old system it is
a requirement to install a dirt filter. Also
install shutoff valves to enable filter
cleaning immediately upstream and
downstream of the dirt filter (scale
cartridge or y-strainer)
•
Top off with vegetable oil in case of high temperature
systems and non-condensing applications.
• Connect the supply pipe with a flat rubber seal installed
to the Supply connection (fig. 12, [1]) making sure it is
not under stress. Use a supply pipe with a minimum
diameter of 1½" (38 mm)
• Connect the return pipe with a flat rubber seal installed
to the Return connection (fig. 12, [2]) making sure it is
not under stress. Use a return pipe with a minimum
diameter of 1½" (38 mm).
Logamax plus GB162- L.B. 80/100 kW - Subject to modifications resulting from technical improvements!
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