Daikin EHYHBX08AFV3 [100/252] Connecting the gas piping

7 | Installation

Installer reference guide

100

EVLQ05+08CAV3 + EHYHBH05AF + EHYHBH/X08AF + EHYKOMB33AA

Daikin Altherma hybrid heat pump

4P355634-1F – 2020.10

NOTICE

Make sure to select and install the safety thermostat according to the applicable

legislation.

In any case, to prevent unnecessary tripping of the safety thermostat, we

recommend the following:

▪ The safety thermostat is automatically resettable.

▪ The safety thermostat has a maximum temperature variation rate of 2°C/min.

▪ There is a minimum distance of 2 m between the safety thermostat and the

motorized 3‑way valve delivered with the domestic hot water tank.

▪ The safety thermostat setpoint is at least 15°C greater than the maximum leaving

water temperature setpoint.

INFORMATION

ALWAYS configure the safety thermostat after it is installed. Without configuration,

the unit will ignore the safety thermostat contact.

INFORMATION

The preferential kWh rate power supply contact is connected to the same terminals

(X5M/3+4) as the safety thermostat. It is only possible for the system to have EITHER

preferential kWh rate power supply OR a safety thermostat.

7.12 Connecting the gas piping

7.12.1 To connect the gas pipe

1 Connect a gas valve to the 15 mm gas connection of the gas boiler and

connect it to the field pipe according to local regulations.

2 Install a gas mesh filter in the gas connection if the gas may be contaminated.

3 Connect the gas boiler to the gas supply.

4 Check all parts for gas leaks on a pressure of maximum 50 mbar

(500mmH

O). There may be no stress on the gas supply connection.