Bedienungsanleitung REMKO ML520 (Seite 19 von 24) (Englisch)

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Connecting the outdoor unit

Prior to installing the connection, observed the follow-

ing:

The customer must install the con-

trol box close to the outdoor unit.

We recommend using a main or

repair switch.

Power is supplied to the indoor unit

via the connection line from the

outdoor unit.

The system’s electrical fuse protec-

tion must comply with the technical

data.

Proceed as follows to connect the lines:

1. Remove the cover above the shut-off valves.

2. Select the diameter of the connection line(s) based

on the requirements.

3. Guide the connection line and the control line to the

unit.

4. Connect the lines according to the wiring diagram.

5. Place the line securely in the strain relief and reas-

semble the unit.

Wiring Diagram

Outdoor unit

Compressor contact

Protecting earthing

conductor

Power supply

Indoor unit

PE PE

Neutral conductor

Phase conductor

230 V~,

50 Hz,

L1 / N / PE

Prior to Initial Operation

After the impermeability check has been performed, the

vacuum pump must be connected to the valve connec-

tions of the outdoor unit by means of the manometer

station and a vacuum must be created.

Prior to initial operation of the unit and after contact with

the cooling cycle, the following checks must be per-

formed and documented in the initial operation log:

Check all refrigerant pipes and valves for leaks with

a leak locator spray or soapy water.

This must be performed with the unit off.

Check the connection lines to ensure that the suc-

tion and injection pipes have not been reversed.

Check the refrigerant pipes and insulation for dam-

age.

Check that the condensation is draining properly.

Check that all additional components are functioning

properly.

Condensation pumps, etc.

Check the electrical connection between the indoor

unit and the outdoor unit for the correct polarity.

Check all fixtures and suspended parts to ensure

that they are in the proper position and at the correct

height.

If the refrigerant pipe is longer than 5 m, more re-

frigerant should be added to the system.

Condensation Connection

Condensation forms on the plate fin exchanger of the

indoor unit during cooling operation because tempera-

tures below the dew point are reached.

The indoor unit is equipped with a collection tray and a

condensation hose for the condensation that accumu-

lates.

Follow the instructions below to lay the condensation

hose:

The condensation drain is generally placed in the

same guideway as the refrigerant pipes.

If, as a result of structural design conditions, it is neces-

sary to have a different guideway for the condensation

drain, the hose can also be guided to the indoor unit

through a different drain.

2% incline

If the unit is being operated at outside temperatures be-

low 0°C, the pipes must be placed in such a way that

they are protected from frost.

Always use suitable hose clips.

If the condensation is being guided to a sewage

pipe, please install a siphon-like hose guideway

which acts as an odour seal.

Make sure there is an adequate

incline for drainage.

It must be at least 2%!

The supplied condensation

hose can be extended using

standard hoses.

Since condensation is created, the condensation

hose must be isolated.

After the hose has been laid, check to make sure

that condensation can drain freely.

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REMKO ML520 Seite 19

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