Daikin Altherma 3 R F EHVZ04S18E 6V Series - Page 85

8 | Piping installation
Installer reference guide
85
ERGA04~08EAV3(A) + EHVZ04+08S18+23EA6V+9W
Daikin Altherma 3 R F
4P629093-1 – 2020.08
NOTICE
Overpressure bypass valve (delivered as accessory). We recommend to install the
overpressure bypass valve in the space heating water circuit.
▪ Mind the minimum water volume when choosing the installation location of the
overpressure bypass valve (at the indoor unit, or at the collector). See "8.2.3To
check the water volume and flow rate"[468].
▪ Mind the minimum flow rate when adjusting the overpressure bypass valve
setting. See "8.2.3 To check the water volume and flow rate" [4 68] and
"11.4.1Minimum flow rate"[4195].
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 zones = Single 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.