![background image](http://html.mh-extra.com/html/daikin/altherma-3-r-f-ehvz04s18e-6v-series/altherma-3-r-f-ehvz04s18e-6v-series_installers-reference-manual_501222068.webp)
8
|
Piping installation
Installer reference guide
68
ERGA04~08EAV3(A) + 08S18+9W
Daikin Altherma 3 R F
4P629093-1 – 2020.08
▪
Domestic hot water tank – Disinfection.
For the disinfection function of the
domestic hot water tank, see
▪
Thermostatic mixing valves.
In accordance with the applicable legislation, it may
be necessary to install thermostatic mixing valves.
▪
Hygienic measures.
The installation must be in compliance with the applicable
legislation and may require additional hygienic installation measures.
▪
Recirculation pump.
In accordance with the applicable legislation, it may be
required to connect a recirculation pump in between the hot water end point
and the recirculation connection of the domestic hot water tank.
c
d
a
b
a
Recirculation connection
b
Hot water connection
c
Shower
d
Recirculation pump
▪
Valve towards expansion vessel.
The valve towards the expansion vessel (if
equipped) MUST be open.
8.2.2 Formula to calculate the expansion vessel pre-pressure
The pre-pressure (Pg) of the vessel depends on the installation height difference
(H):
Pg=0.3+(H/10) (bar)
8.2.3 To check the water volume and flow rate
The indoor unit has an expansion vessel of 10 litre with a factory-set pre-pressure
of 1 bar.
To make sure that the unit operates properly:
▪
You must check the minimum and maximum water volume.
▪
You might need to adjust the pre-pressure of the expansion vessel.
Minimum water volume
There are no requirements for the minimum water volume.
INFORMATION
In critical processes, or in rooms with a high heat load, extra water might be
required.
NOTICE
When circulation in each space heating/cooling loop is controlled by remotely
controlled valves, it is important that the minimum water volume is guaranteed,
even if all of the valves are closed.
Содержание Altherma 3 R F EHVZ04S18E 6V Series
Страница 253: ......
Страница 254: ......
Страница 255: ......
Страница 256: ...4P629093 1 2020 08 Copyright 2020 Daikin Verantwortung für Energie und Umwelt ...