Bedienungsanleitung REMKO ML522 DC (Seite 15 von 32) (Englisch)

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Problem display by blinker code

Installation instructions for qualiﬁed personnel

Important notes prior to

installation

■

Transport the unit in its original

packaging as close as possible

to the installation location.

You avoid transport damages

by doing so.

■

Check the contents of the

packaging for completeness

and check the unit for visible

transport damage. Report any

damage immediately to your

contractual partner and the

shipping company.

■

Lift the unit at the corners

and not by the refrigerant or

condensation connections.

■

The refrigerant pipes (injection

and suction line), valves and

connections must be insulated

against vapour diffusion.

If necessary, also insulate the

condensation pipe.

■

Select an installation location

which allows air to freely

ﬂow through the inlet and

outlet. (See section "Minimum

clearances").

■

Do not install the unit in

the immediate vicinity of

devices with intensive thermal

radiation. Installation near

sources of thermal radiation

reduces the output of the unit.

■

Only open the shut-off valves

of the refrigerant lines after the

installation is complete.

■

Seal off open refrigerant lines

with suitable caps or adhesive

strips to avoid inﬁltration of

moisture and never kink or

compress the refrigerant lines.

■

Avoid unnecessary bends.

You thereby minimize loss of

pressure in the refrigerant lines

and ensure clear return ﬂow of

the compressor oil.

■

Take special precautions with

regard to the oil return if the

exterior component is located

above the indoor unit.

See section "Oil return ﬂow

measures".

■

If the basic length of the

refrigerant line exceeds 5

metres, add refrigerant.

The quantity of additional

refrigerant is provided in the

chapter "Add refrigerant".

■

Only use the union nuts for the

refrigerant pipes included in the

delivery, and remove them only

shortly before connecting the

refrigerant lines.

■

Make electrical connections in

accordance with the effective

DIN and VDE standards.

■

Always fasten electric cables

properly to the electrical

terminals. Otherwise a ﬁre

could result.

Display Cause Required action

E0 EEPROM error Contact specialty company

Communication error between outdoor component and

indoor unit

Disconnect from mains for 2 min, check wiring

E2 Wiring fault L/N/Pe/S Check wiring, replace IT circuit board

E3 Vaporiser fan speed too low Check wiring, check motor voltage

Outdoor temp. sensor / condenser temperature fault /

short-circuited

Check wiring, contact specialty company

E6 air circulation sensor / vaporiser faulty / short-circuited Check wiring, contact specialty company

P0 IGBT electrical surge protection

Check wiring, check compressor wiring contact spe-

cialty company

P1 Electrical surge / Undervoltage protection

Check voltage on the L/N/S system. Switch off and

turn on again

Excessive compressor temperature protection (Klixon) has

tripped

Check refrigerant quantity, wiring, Klixon

P4 IPM power board safety shutdown

Check wiring, switch off and on again, contact specialty

company

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REMKO ML522 DC Seite 15

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