Download Viessmann VD2-860 Technical data

Installation
Power Supply Connection, Boiler Control (VD2/VD2A/CT3 only)
Legend
L: Line
N: Neutral
G: Ground
A Power supply 120 VAC, 1 PH .
Provide disconnect means and
overcurrent protection as per local
codes
B Terminals [40]
C Connection enclosure
1. Ensure that the main power supply
to the control contains overcurrent
protection with a maximum rating
of 15 A and 2 pole disconnect.
CAUTION
The control must be grounded.
Ensure that “L”, “N” and “G” are not
interchanged.
5351 340 v1.4
2. Connect power supply wire to the
Connection fÖ terminals 11, N and
G on the DIN rail inside the
connection enclosure.
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