Daikin Altherma 3 GEO Series - Page 43

5 | Application guidelines
Installer reference guide
43
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
Calculating the consumed energy
▪ The consumed energy is calculated internally based on:
- The actual power input of the indoor unit
- The set capacity of the backup heater
- The voltage
▪ Setup and configuration: None.
Measuring the consumed energy
▪ Preferred method because of higher accuracy.
▪ Requires external power meters.
▪ Setup and configuration: When using electrical power meters, set the number of
pulses/kWh for each power meter via the user interface.
INFORMATION
When measuring the electrical power consumption, make sure ALL power input of
the system is covered by the electrical power meters.
Power supply layouts with power meters
In most cases, one power meter that measures the entire system (compressor,
backup heater and hydro) is sufficient.
Power meter Measures Type Connection
1 Entire system 1N~ or 3N~
depending on the
backup heater
X5M/5+6
In case of the following combination, you need 2 power meters:
▪ Dual cable power supply (=split power supply)
▪ + Preferential kWh rate power supply with separate normal kWh rate power
supply
Power meter Measures
(1)
Type Connection
1 Hydro and backup
heater
1N~ or 3N~
depending on the
backup heater
X5M/5+6
2 Compressor 1N~ X5M/3+4
(1) In the software the power consumption data of both meters is added so you do NOT
have to set which meter covers which power consumption.
Exceptional cases. You can also use a second power meter if:
- The power range of one meter is insufficient.
- The power meter cannot easily be installed in the electrical cabinet.
- 230V and 400V three-phase grids are combined (very uncommon), because of
technical limitations of power meters.