Maintenance; Maintenance Work To Be Carried Out Annually; Important Notes; Spare Parts - Daikin D2CND024A1AA Servicing Manual

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MAINTENANCE

Any maintenance and servicing operation must be
carried out by a competent qualified person.
Annual maintenance cycle is strongly recommended to
ensure reliable, efficient and long lasting operation of your
appliance.
Have the maintenance before the heating season, if possi-
ble. This will avoid malfunctions during the heating season.
Always observe the following instructions during mainte-
nance operation:
•
Isolate the appliance from power supply.Do not touch
the electrical components of the boiler with a damp cloth
and wet hands.
•
Turn off the gas and water supplies of the appliance.
•
Use appropriate tools for maintenance and servicing
operations.
•
Follow the safety precautions.
3.1 Maintenance work to be carried out annually
•
Check general condition of heating system and inspect
connections and piping visually.
•
Check flue gas way, check the flue gas temperature and
its contents.
•
Check the conditions of parts visually.
•
Clean the burner,main heat exchanger and its parts.
•
Replace the worn-out parts,if required.
WARNING
Let the burner to cool for reasonably long time be-
fore maintenance and service operations.
3.2

Important notes

For maintenance and servicing,following tools and measure-
ment devices should be used :
•
Gas analyzer to measure CO2, CO, O2 contents and flue
gas temperature.
•
0-30 mbar pressure measurement device (Precision min.
0.1 mbar).
•
Socket wrench set ( Number 8).
•
Allen set (Number 1-3-5 ).
•
Torx, stars and flat screwdriver sets PH1, PH2, T20, T30.
•
Open-end wrench, adjustable spanner (Number 30-32,
•
24-26, 14-18).
3.3

Spare parts

To ensure long lasting operation of the appliance always use
original spare parts.
Spare parts must be ordered from spare parts catalog by
specifying the related spare part order number. If necessary,
dismantled O-rings and gaskets must be replaced with new
ones.
After the maintenance and servicing operation;ensure that
all screws are tightened and all the gaskets or O-rings are
placed.
D2CND024A1AA + D2CND024A4AA + D2TND012A4AA +
D2TND018A4AA + D2TND024A4AA
Wall-mounted condensing boiler
ESIE17-09 / 2017.11
3.4 Checking the connections and piping
Inspect all gas and water pipes and connections against
leakage, replace damaged parts.
Inspect all components of the flue system against leakage
and damage, replace damaged parts.
Inspect electrical connections, take measures against any
risky condition.
3.5 Condensate Trap Cleaning
The condensate trap needs to be cleaned at least once a
year, to prevent it from getting blocked by dirt.
To clean the condensate trap:
•
Place a water pan or bucket just under the condensate
trap to prevent spillage.
•
Turn the condensate trap cap(grey cloured part,(1))
counter clockwise to take it out. When the cap comes
unstuck from thread, hold the condensate tank with
your other hand. Note that the tank is full of condensate
so,take them out slowly to prevent contact with conden-
sate and spillage of condensate around.
•
Wash the cap and tank with plenty of water.
•
Fill the condensate tank with water and mount the parts
back to their place under the boiler.Make sure the gas-
ket is placed.
3 Maintenance
a
b
c
a Gasket
b Condensate Tank
c Condensate Trap Cap (1)
Servicing manual
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