Metro Therm METROAIR AQUA HPM, Руководство пользователя

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35
The call for heating (low water temperatures) can be suppressed during the sunny hours (only
allowing for operation on PV power) and released for normal mode operation during user
defined evening and night times. This is done by the existing low tariff function.
The figures below illustrates typical installation options.
PV control layout using signal from solar PV inverter.
PV control layout using signal from energy meter.
[fig 21]
PV-panel
PV-inverter
Main power
supply
To other household appliances
Control
signal
Output options:
Potential free contact (standard
cable)
0-3 VDC (standard cable)
0-10 VDC (special cable)
4-20 mA (special cable)
Heat
pump
module
[fig 22]
PV-panel
Main power
supply
To other household appliances
Control
signal
Output options:
Potential free contact
(standard
cable)
0-3 VDC (standard
cable)
0-10 VDC (special
cable)
4-20 mA (special
cable)
PV-
inverter
Energy
meter
Heat
pump
module