Closing The Heat Pump - Viessmann Vitocal 200-S Installation And Service Instructions Manual

Power supply
(cont.)
[{A [{S
DE DE
1 2 1 2 3 4
B C
Fig. 42
EA1 extension
A
Connection to controller and sensor PCB
B
Floating N/O contact 1: The agreement of the
C
power supply utility may be required
Note
■ If Smart Grid is enabled ("Enable Smart Grid 7E80"
set to "1"), both inputs DE2 and DE3 cannot be
used for signals "External demand" or "External
blocking".
The power-OFF function is integral to Smart Grid.
■
Therefore do not connect the power-OFF signal to
terminals X3.6 and X3.7. Do not remove jumper.

Closing the heat pump

!
Please note
If a casing door is not securely closed this can
lead to damage from condensation, vibrations
and excessive noise.
■ Seal the appliance so it is soundproof and dif-
fusion-proof.
■ On pipe and hose outlets, ensure the thermal
insulation is seated correctly.
A
[{D [{{] 0-10V
DE
5 6 + -
D
f-]
A
N L1
E
Floating N/O contact 2: The agreement of the
D
power supply utility may be required
Power supply 1/N/PE 230 V/50 Hz
E
Danger
The absence of system component earthing can
lead to serious injury from electrical current and
component damage in the event of an electrical
fault.
Attach earth conductor to front panel and side
panel.
Installation sequence
41