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7
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Service and maintenance
7
Service and maintenance
7.1 General
Regular inspection and maintenance of the Altherma M ECH
reduces energy consumption and ensures a long life and trouble-
free operation.
Have inspection and maintenance carried out by
authorised and trained HVAC engineers once a year,
ideally before the heating period. Malfunctions during
the heating period can therefore be prevented.
Daikin recommends an inspection and maintenance contract to
ensure regular inspection and maintenance.
Please observe the respective instructions for work on the out-
door unit.
7.2 Activities to be performed annually
CAUTION!
Work carried out improperly on the Daikin
Altherma M ECH
O and its optionally connected
2
components can endanger human life and
health and affect the function of these compo-
nents.
● Work on the Daikin Altherma M ECH
as e.g. maintenance or repair) must only be
carried out by persons who are authorised,
who have successfully completed qualifying
technical or vocational training for the
respective activity and who have taken part in
advanced training sessions recognised by
the relevant responsible authority. These
particularly include certified heating
engineers, qualified electricians and
HVAC specialists who have experience in
the professional installation and maintenance
of heating, cooling and air conditioning
systems and heat pumps due to their profes-
sional training and their expert knowledge.
Installation and maintenance instructions
40
O
WARNING!
2
Under the cover of the Daikin Altherma M
ECH
O, temperatures of up to 90 °C can
2
occur during operation. During operation, hot
water temperatures of >60 °C occur.
– Touching components during or after opera-
tion 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 Daikin Altherma M
ECH
O to cool down sufficiently.
2
● Wear protective gloves.
WARNING!
Touching live parts can result in an electric
shock and lead to potentially fatal injuries and
burns.
O (such
2
● Before beginning work on live parts,
disconnect all of the systems circuits
from the power supply (switch off external
main switch, disconnect fuse) and secure
against unintentional restart.
● The electrical connection and working on the
electrical components should only be
performed by electrical engineers in
compliance with valid standards and guide-
lines as well as the specifications of the
energy supply company.
● The equipment covers and maintenance
opening covers must be re-fitted immedi-
ately after completion of the work.
1. Remove the cover and thermal insulation (see chap. 4.3).
2. Check the function of the Daikin Altherma M ECH
installed accessory components (backup heater, solar
system) by checking the temperature display and switch
states in the individual operating modes.
3. If a Daikin solar system of the DrainBack
connected and in operation, shut it off and empty the
collectors.
4. If the Daikin Altherma M ECH
alternative system, switch off all heat generators and
deactivate the bi-valence controller.
5. Visual inspection of the general condition of the Daikin
Altherma M ECH
O is operated in a bivalent,
2
O.
2
Daikin Altherma M ECH
Solar storage tank with heating controller
008.1446799_00 – 07/2019 – EN
O and all
2
type is
O
2
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