58
Mains power supply in conjunction with on-site power consumption
Without power-OFF
kWh
G
F
L
kWh
F
L
E
kWh
N E1E2 D /D
L1 L1 L2 L2 L3 L3
C
A
M
NN
A
~
~
=
D
H K
M
F
B
F
Vitocal Vitocal
Fig. 57
A
Heat pump
B
Additional consumers (of power generated on site)
in the household
C
Electricity meter
D
Inverter
E
Isolator for the PV system
F
Terminal
G
Double-tariff meter (for special tariff for heat pump)
Not permissible in conjunction with PV systems for
on-site power consumption
H
Bi-directional meter (for PV systems to consume
power on site):
Energy taken from power supply utility and energy
fed into power supply utility
K
Meter with reverse block:
For energy generated by PV system
L
Isolator for the domestic power supply connection
(distribution panel)
M
Distribution panel
N
Domestic distribution box
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.
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
Power supply (cont.)
6199585
Installation
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