35
Power supply to HMU heat management unit
L
?
N
L
?
N
156
L
N
A
Fig. 26
A
EM-MX mixer extension kit (ADIO electronics
module)
fÖ
Power supply
fÖ
A Power supply for further accessories
aBH
Plug for accessories power supply
Create the power supply connection.
Route the power cable to the heat generator and con-
nect to plug
aBH
. Observe fuse protection at output,
plug
aBH
of the heat generator.
If the power supply connection is made to another
accessory, use plug
fÖ
A provided.
Danger
Incorrect core assignment can result in serious
injury and damage to the appliance.
Never interchange cores "L" and "N".
System power supply
Connect the power supply to the system according to
the operating mode selected during preparations for
installation: See page 14.
1.
Route the power cable sideways out of the appli-
ance.
2.
Create the system power supply for the selected
operating mode and with appropriate protection:
See chapter "Preparing for installation" on
page 14.
Select cable cross-sections in accordance with
applicable VDE [IEE or local] regulations.
Ensure the low resistance of the earth connection.
Danger
Incorrectly executed electrical installations
can result in injuries from electrical current
and damage to the appliance.
Connect the power supply and implement all
safety measures (e.g. RCD circuit) in
accordance with the following regulations:
■
VDE regulations
■
Connection conditions of the local grid
operator
Install an isolator in the power cable to provide
omnipolar separation from the mains for all active
conductors, corresponding to overvoltage cate-
gory III (3 mm) for complete isolation. The ON/OFF
switches integrated into the Vitovalor PA2 fulfil this
function.
3.
Route 230 V cables and extra low voltage (ELV)
leads < 42 V separately.
Installation sequence
Electrical connections for EM-MX mixer…
(cont.)
5839343
Installation
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