Commissioning; Initial Commissioning; Re-Commissioning; Requirements - Daikin EHSX04P30A Operating Instructions Manual

4

Commissioning

WARNING!
● A Daikin Altherma EHS(X/H) that is installed or
started incorrectly may not operate properly and is
dangerous for the health and safety of individuals.
CAUTION!
A Daikin Altherma EHS(X/H) not put into operation
properly can lead to damage to property and the envi-
ronment.
● Minimum requirements regarding the quality of
filling and supplementary water:
– Water hardness (calcium and magnesium, cal-
culated as calcium carbonate): ≤ 3 mmol/l
– Conductivity: ≤ 2700 μS/cm
– Chloride: ≤ 250 mg/l
– Sulphate: ≤ 250 mg/l
– pH value (heating water): 6.5 - 8.5.
● If the above-mentioned minimum water quality
requirements set by the local water supply
company cannot be guaranteed, suitable water
treatment measures must be taken.
● During system operation, the water pressure at the
pressure gauge must be checked at regular
intervals. If necessary, readjust by refilling
4.1 commissioning
Initial
The Daikin Altherma EHS(X/H) may be commissioned only by
authorised and trained heating experts.

4.2 Re-commissioning

4.2.1 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 operating the
system in extremely frosty conditions.
– 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 7.5).
– The storage tank is filled up to the overflow (see chapter 7.4).
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1420944 – 05/2014

4.2.2 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 (EKBUxx) is
switched on automatically on in order to heat up the
storage tank water to at least 35 °C.
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,
evacuate the heating system, check the installation pressure
and adjust where necessary (max. 3 bar).
(Can only be performed by an expert heating
5. Carry out a visual inspection for leaks on all joints internally.
Seal any leaks that occur in a professional manner.
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.
4 x Commissioning
Air Purge
technician.)
Operating instructions
29