Inspection And Maintenance; General Overview Of Inspection And Maintenance; Maintenance Work To Be Carried Out Annually - Daikin Altherma 3 H HT ECH2 O Referenzhandbuch Für Den Monteur

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Inspection and maintenance

6 Inspection and maintenance
6.1 General overview of inspection
and maintenance
Regular inspection and maintenance of the indoor unit reduces en-
ergy consumption and ensures a long service life and smooth opera-
tion.
Please observe the respective instructions for work on the outdoor
unit. The outdoor unit contains refrigerant. The relevant statutory
provisions must be observed.
INFORMATION
Have inspection and maintenance carried out by author-
ised and trained heating engineers once a year and, if pos-
sible, before the heating period. This will avoid malfunc-
tions during the heating period.
We recommend an inspection and maintenance contract to
ensure regular inspection and maintenance.
6.2 Maintenance work to be carried
out annually
WARNING
Work carried out improperly on the indoor unit and its op-
tionally connected components can endanger human life
and health and affect the function of these components.
▪ Work on the indoor unit (such as maintenance or servi-
cing) must only be carried out by persons who are au-
thorised and have successfully completed qualifying
technical or vocational training and who have taken
part in advanced training sessions recognised by the
relevant authorities responsible for the specific activity.
These include, in particular, certified heating engineers,
qualified electricians and HVAC specialists who, be-
cause of their professional training and expert know-
ledge, have experience in the professional installation
and maintenance of heating, cooling and air condition-
ing systems and heat pumps.
WARNING
Under the cover of the indoor unit, temperatures of up to
90 °C can occur during operation. During operation, hot
water temperatures of > 60 °C occur.
▪ Touching components during or after operation leads to
a risk of burns.
▪ Water discharged during maintenance and repair work
can cause scalding on contact with the skin.
▪ Before carrying out maintenance and inspection work,
allow the indoor unit to cool down sufficiently.
▪ Wear protective gloves.
Installer reference guide
34
WARNING
Touching live parts can result in electric shock and lead to
potentially fatal injuries and burns.
▪ Before beginning work on live parts, disconnect all cir-
cuits of the system from the power supply (switch off
external main switch, disconnect fuse) and secure
against unintentional restart.
▪ The electrical connection and work on the electrical
components should only be performed by electrical en-
gineers in compliance with valid standards and
guidelines as well as the specifications of the energy
supply company.
▪ Device covers and service panels must be replaced as
soon as the work is completed.
1 Removing the cover and thermal insulation (see
2 Check the function of the indoor unit and all installed accessory
components (backup heater, solar system) by checking the tem-
perature display and switch states in the individual operating
modes.
3 If a solar system of the DrainBack type is connected and in oper-
ation, shut it off and empty the collectors.
4 If the indoor unit is operated in a bivalent, alternative system,
switch off all heat generators and deactivate the bi-valence con-
troller.
5 Visual inspection of the general condition of the indoor unit.
6 Visual check of the water storage tank level (filling level indic-
ator).
▪ If necessary, replenish water
edy the reason for the low water level.
7 Check the connection of the safety overflow, drain hose and lid
drain for leaks, free drainage and gradient.
▪ If necessary, clean the safety overflow and drain hose and relay
it; replace damaged parts.
INFORMATION
Thanks to its design, the indoor unit requires very little
maintenance. No corrosion protection equipment is re-
quired (such as expendable anodes). This means there is
no need for maintenance work such as changing the pro-
tective anodes or cleaning the inside of the storage tank.
8 Check the connection of the safety overflow and drain hose for
leaks, free drainage and gradient.
▪ If necessary, clean the safety overflow and drain hose and relay
it; replace damaged parts.
9 Check all electrical components, connections and cables.
▪ Repair damaged parts or replace them.
INFORMATION
If the connection cable of the optional backup heater is
damaged, the entire backup heater must be replaced.
The connection cable cannot be exchanged separately.
10 Check the water pressure of the cold water supply (<6 bar)
▪ and, if necessary, the fitting or adjustment of the pressure redu-
cer.
11 Check the system water pressure on the RoCon+ HP controller
of the indoor unit.
▪ If necessary, top up the water in the heating system until the
pressure display is in the permissible range
12 Check and clean the filter/sludge separator.
13 Check the minimum flow (see Chap.
Heat pump (indoor unit) with integrated heat accumulator
Chap. 3.4.2).
(Chap. 6.3), determine and rem-
(see Chap. 6.4).
5.4).
Daikin Altherma ETS(X/H)(B)-D
008.1447299_00 – 06/2019 – EN