Daikin Altherma 3 H MT F, Installer'S Reference Manual

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6 | Application guidelines
Installer reference guide
39
EPRA08~W1 + ET9W
Daikin Altherma 3 H MT F
4P634887-1 – 2021.03
▪ For more information about connecting the recirculation connection, see
"8.2.4 To connect the recirculation piping" [
4
77].
Configuration
▪ For more information, see "10 Configuration" [
4
116].
▪ You can program a schedule to control the DHW pump via the user interface. For
more information, see the user reference guide.
6.3.5 DHW pump for disinfection
Setup
a
b
c
d
e
a Cold water IN
b Hot water OUT (shower (field supply))
c DHW pump (field supply)
d Heater element (field supply)
e Non‑return valve (field supply)
▪ The DHW pump is field-supplied and its installation is the responsibility of the
installer. For the electrical wiring, see
"9.3.5 To connect the domestic hot water
pump" [
4
104].
▪ If the applicable legislation requires a higher temperature than the maximum
tank setpoint during disinfection (see [2-03] in the field settings table), you can
connect a DHW pump and heater element as shown above.
▪ If applicable legislation requires disinfection of the water piping until the tapping
point, you can connect a DHW pump and heater element (if needed) as shown
above.
▪ To ensure a complete disinfection, you have to open the tapping point.
WARNING
When opening the tapping point, the water temperature can be up to 55°C.
Configuration
The indoor unit can control DHW pump operation. For more information, see
"10 Configuration" [
4
116].