Daikin ERGA06DAV3 - Connecting the Electrical Wiring

7 | Installation
Installer reference guide
92
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA/DJ3V+6V+9W7
Daikin Altherma 3 R F
4P618947-1 – 2020.03
2 Open the cold water supply valve.
3 Close all water taps after all air is purged.
4 Check for water leaks.
5 Manually operate the field-installed pressure relief valve to ensure a free
water flow through the discharge pipe.
7.8.7 To insulate the water piping
The piping in the complete water circuit MUST be insulated to prevent
condensation during cooling operation and reduction of the heating and cooling
capacity.
If the temperature is higher than 30°C and the humidity is higher than RH80%, the
thickness of the insulation materials should be at least 20 mm to prevent
condensation on the surface of the insulation.
7.9 Connecting the electrical wiring
7.9.1 About connecting the electrical wiring
Before connecting the electrical wiring
Make sure:
▪ The refrigerant piping is connected and checked
▪ The water piping is connected
Typical workflow
Connecting the electrical wiring typically consists of the following stages:
1 Making sure the power supply system complies with the electrical
specifications of the heat pump.
2 Connecting the electrical wiring to the outdoor unit.
3 Connecting the electrical wiring to the indoor unit.
4 Connecting the main power supply.
5 Connecting the backup heater power supply.
6 Connecting the shut-off valves.
7 Connecting the electrical meters.
8 Connecting the domestic hot water pump.
9 Connecting the alarm output.
10 Connecting the space cooling/heating ON/OFF output.
11 Connecting the changeover to an external heat source.
12 Connecting the power consumption digital inputs.
13 Connecting the safety thermostat.
7.9.2 About electrical compliance
Only for ERGA04~08DAV3 (not for ERGA04~08DAV3A)
Equipment complying with EN/IEC 61000‑3‑12 (European/International Technical
Standard setting the limits for harmonic currents produced by equipment
connected to public low-voltage systems with input current >16A and ≤75A per
phase.).