Daikin EHFZ03S18DJ3V, Руководство по установке для специалистов, Страница: 83 / 212

8 | Piping installation
Installer reference guide
83
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1B – 2021.10
NOTICE
It is recommended to install shut-off valves on the space heating/cooling water in
and out connections, as well as on the domestic cold water in and domestic hot
water out connections. These shut-off valves are field supplied.
NOTICE
To avoid damage to the surroundings in case of water leakage, it is recommended to
close the domestic cold water inlet shut‑off valves during periods of absence.
NOTICE
Overpressure bypass valve (field supply). We recommend to install an overpressure
bypass valve in the space heating water circuit. Mind the minimum flow rate when
adjusting the overpressure bypass valve setting.
NOTICE
If you install this unit as a single-zone application, then:
Setup. Install a bypass between the space heating water inlet and outlet of the
additional zone (=direct zone). Do NOT interrupt the water flow by closing the shut-
off valves.
a
a Bypass
Configuration. Set field setting [7-02]=0 ( Number of LWT zones = 1 LWT zone ).
NOTICE
Install air purge valves at all local high points.
NOTICE
A pressure relief valve (field supply) with an opening pressure of maximum 10 bar
(=1 MPa) must be installed on the domestic cold water inlet connection in
accordance with the applicable legislation.