Buderus Logamax plus GB162-L.B. 80 kW Installation Instructions Manual page 27

▶ Install the wall bracket in the relevant slots in the drawer ( fig. 41).
Fig. 41 Installing the wall bracket
▶ Click the function module(s) into position in the wall bracket
( fig. 42).
Fig. 42 Clicking the function module into position
▶ Remove the drawer.
▶ Remove the covers of both free connectors on the function module
connection cables ( fig. 43).
Fig. 43 Removing the covers
Logamax plus GB162-L.B. 80 kW / 100 kW – 6720645916 (2014/10)
▶ Slide the drawer back into the boiler.
▶ Connect the free 120 VAC mains cable ( fig. 43) to the module
[1]. If more modules are used, the 120 VAC supply for the second
module can be taken from the first module using the cable enclosed
with the module.
2
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Fig. 44 Interconnecting modules
▶ Connect the free connector of the EMS bus connecting cable
( fig. 44) to the first module ( fig. 45).
▶ If more modules are used, the EMS bus connection for the second
module may be branched off from the first module using the cable
enclosed with the module ( fig. 44 and fig. 45).
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Fig. 45 Connecting several modules
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Electrical connections
NOTICE
▶ The module may have the letters RC or EMS above
the connection ( fig. 45, [1]).
1
NOTICE
Pay attention to the polarity when using an EMS bus
connection cable
▶ Connect the wire from terminal 1 to terminal 1 and
from terminal 2 to terminal 2 ( fig. 44 and fig. 45).
7
1
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