Re-Commissioning; Requirements; Start-Up - Daikin Altherma EHS04P30B Instructions D'installation Et D'utilisation

5 x

Start-up

5.2 Re-commissioning

5.2.1 Requirements

CAUTION!
Commissioning in frosty conditions can
result in damage to the entire heating
system.
Only commission at temperatures
below 0 °C when a water temperature
of at least 5 °C can be guaranteed in
the heating system and storage tank.
Daikin recommends that you avoid oper-
ating the system in extremely frosty con-
ditions.
– The Daikin Altherma EHS(X/H) is fully connected.
– The coolant system is dehumidified and filled with the speci-
fied amount of coolant.
– The heating and hot water systems are filled and charged at
the right pressure (see chapter 7.4).
– The storage tank is filled up to the overflow (see chapter 7.3).
5.2.2 Start-up
If the storage temperature falls below a certain
minimum value, the safety settings of the Daikin
Altherma EHS(X/H) prevent the operation of the heat
pump in the case of low external temperatures:
– External temperature < -2 °C, minimum storage
temperature = 30 °C
– External temperature < 12 °C, minimum storage
temperature = 23 °C.
Without backup-heater:
The storage tank water must be heated to the minimum
required storage temperature by an external heater.
With Backup-Heater (EKBUxx):
With an outdoor temperature < 12 °C and a storage
tank temperature < 35 °C, the Backup-Heater (BUH) is
switched on automatically on in order to heat up the
storage tank water to at least 35 °C.
In order to accelerate the heating process with
the back-up heater, temporarily
– Set parameter [Function Heating ] = "1" and
– Set parameter [Power DHW] to the maximum
value of the back-up heater.
– Switch the rotary switch to operating mode
and set the parameter [1x Hot Water] to "On".
Following successful heating, reset the parame-
ters to "Off".
1. Check the cold water connection and where necessary, fill the
potable water heat exchanger.
2. Turn power supply to Daikin Altherma EHS(X/H) on.
3. Wait for the start phase.
4. After the start phase has completed, in heating mode, vent
the heating system, check the system pressure and adjust if
necessary (max. 3 bar, see chapter 7.4).
5. Carry out a visual inspection for leaks on all joints internally.
Seal any leaks that occur in a professional manner.
Installation and operating instructions
44
6. Set the dial on the controller to the required operating mode.
7. If a Daikin solar system is connected, commission this in
accordance with instructions provided. After disconnecting
the Daikin solar system, check the level in the buffer
storage tank once again.
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN