Daikin EUWY 24KBZW1 Series Service Manual page 205

Small air-cooled chillers and heat pump, r-407c
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ESIE11-02
1.4
Periodical Checks
Electrical checks
The table below contains the electrical checks.
Inspection checks and actions
Check that all electrical wiring is properly
connected and securely tightened.
Check the electrical components for damage or loss.
Check if the power supply corresponds with the
identification label of the unit.
Check the operation of the circuit breaker and the
earth leak detector of the local supply panel.
Check the operation of the safety devices.
Refrigerant checks
The table below contains the refrigerant checks.
Inspection checks and actions
Check the refrigerant circuit.
Water checks
The table below contains the water checks.
Inspection checks and actions
Check the water condition.
Check the water connection.
Check the water velocity.
Check the function of the flow switch.
Make sure that there is no air mixed in the water
pipes.
Check the water filter.
Part 5 – Maintenance
If the unit leaks, contact your dealer.
Drain the water from the air release plug.
If the water is dirty, replace all the water in the
system.
Remarks
No operation can cause damage of the
unit.
Remarks
Remarks
Dirty water causes a cooling capacity drop
as well as corrosion of the water heat
exchanger and pipe.
The evaporator can freeze up if the flow
switch is not able to operate.
Even if air is removed at the beginning, air
can sometimes enter later. Bleed there-
fore the system regularly.
Maintenance
1
3
5
5
5–7

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