5
Start-up
Installation and maintenance instructions
33
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
5.2.2
Start-up
INFORMATION
If the storage tank temperature falls below specific min-
imum values, the safety settings of the Daikin Altherma
EHS(X/H) prevent the heat pump from being operated at
low outside temperatures:
- Outside temperature < -2 °C, minimum storage tank tem-
perature = 30 °C
- Outside temperature < 12 °C, minimum storage tank tem-
perature = 23 °C
Without backup heater:
The storage tank water must be heated to the required
minimum storage tank temperature with an external heater
booster.
With backup heater (
EKBUxx
):
At an outside temperature of < 12 °C and a storage tank
temperature of < 35 °C, the backup heater (EKBUxx) is
automatically switched on to heat the storage tank water to
at least 35 °C.
▪ To speed up the heating process with the backup
heater, temporarily set the [Config. of external heat
source] parameter = "1" and [Ext. hot water power] para-
meter to the maximum value of the backup heater
[→ Main menu → Settings → Ext. Source].
▪ Select the [1x Hot Water] parameter in the "User" menu
and switch it on. After the heating has completed, switch
off the parameter again [→ Main menu → User → 1x
Load].
1
Check the cold water connection and, where necessary, fill the
potable water heat exchanger.
2
Switch on the power supply to the Daikin Altherma EHS(X/H).
3
Wait for the start phase.
4
After the start phase in heating mode has completed, evacuate
the heating system, check the installation pressure and adjust if
necessary (max. 3 bar, see
5
Carry out a visual inspection for leaks on all connection points
internally. Seal any leaks that occur in a professional manner.
6
Set the controller to the required operating mode.
7
If a solar system is connected, commission it according to the
enclosed instructions. After shutting off the solar system, again
check the fill level in the buffer storage tank.
