Daikin EWAD300MBYNN [441/452] Periodical checks

ESIE05-07 Maintenance

Part 5 – Maintenance 5–7

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.

P If the unit leaks, contact your dealer.

—

Inspection checks and actions Remarks

Check the water condition.

P Drain the water from the air release plug.

P 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 there-

fore the system regularly.

Check the water filter. —

ESIE05-07.book Page 7 Wednesday, October 11, 2006 10:42 AM