Filling And Topping Up The Storage Tank - Daikin Altherma EHS Serie Manual De Instrucciones E Instalación

7 x Service and maintenance
If the connecting cable for the optional Backup-
Heater shows damage, the complete Backup-
Heater must be replaced.
The connecting cable cannot be replaced sepa-
rately.
10. Check the water pressure of the cold water supply (<6 bar)
and if necessary the fitting or adjustment of the pressure
reducer.
11. Check the system water pressure on the RoCon HP controller
of the Daikin Altherma EHS(X/H).
Top up the water in the heating system if necessary, until
the pressure display is within the permitted range
(see section 7.4).
12. Check and clean filter/sludge separator.
13. Check minimum flow rate (see section 5.1.5).
14. Clean plastic surface of Daikin Altherma EHS(X/H) with a
soft cloth and mild cleaning agent. Do not use any
cleaners with aggressive solvents (damage to the plastic
surface may occur).
15. Refit the cover (see section 4.3).
16. Servicing of the external unit and other heating components
connected to the Daikin Altherma EHS(X/H) should be carried
out as specified in the respective associated installation and
operating manuals.
17. Confirmation of servicing document.
Installation and operating instructions
52

7.3 Filling and topping up the storage tank

CAUTION!
Filling the storage tank container with ex-
cessive water pressure or with too high a
flow speed can cause damage to the
Daikin Altherma EHS(X/H).
Only fill with a water pressure <6 bar
and a flow speed <15 l/min.
CAUTION!
If filling or topping up the storage tank is
done by means of the boiler filling and
UK only!
drain valve, a temporary filling loop must
be used with the appropriate backflow
prevention device in accordance with
clause G24.2, Guidance to the Water
Supply (Water Fittings)
Regulations 1999.
Observe the information on the water connection and
water quality in accordance with chap. 2.4 and 4.4.
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
– 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".
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN