Daikin EUWL KZW1 Series, Service Manual

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ESIE-0303 Maintenance
Part 5 – Maintenance 5–7
3
5
1
5
1.4 Periodical Checks
Electrical checks The table below contains the electrical checks.
Refrigerant checks The table below contains the refrigerant checks.
Water checks The table below contains the water checks.
Inspection checks and actions Remarks
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. No operation can cause damage of the
unit.
Inspection checks and actions Remarks
Check the refrigerant circuit.
■ If the unit leaks, contact your dealer.
—
Inspection checks and actions Remarks
Check the water condition.
■ Drain the water from the air release plug.
■ If the water is dirty, replace all the water in the
system.
Dirty water causes a cooling capacity drop
as well as corrosion of the water heat
exchanger and pipe.
Check the water connection. —
Check the water velocity. —
Check the function of the flow switch. The evaporator can freeze up if the flow
switch is not able to operate.
Make sure that there is no air mixed in the water
pipes. Even if air is removed at the beginning, air
can sometimes enter later. Bleed therefore
the system regularly.
Check the water filter. —