Bedienungsanleitung Dimplex LAW 9IMR (Seite 36 von 100) (Deutsch, Englisch, Französisch)

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EN-10 452162.66.04 · FD 9912 www.gdts.one

English LAW 9IMR - LAW 14ITR

8 Connecting the pipework

and cables to the outdoor

unit

This chapter describes the refrigerant pipe connections and the

electrical cable connections on the outdoor unit.

8.1 Refrigerant pipes

ATTENTION!

Work on the system must only be performed by authorised

and qualified after-sales service technicians!

Certain requirements with regard to pipe length and rise must

be complied with when installing refrigerant pipes. Once all re-

quirements have been fulfilled, certain preparations must be

made.

Once these are complete, the connecting pipe from the out-

door unit to the indoor unit can be connected.

8.1.1 Requirements for pipe length

and rise

The standard pipe length is 7.5 m. Up to a length of 15 m, no

additional refrigerant filling is required. For pipe lengths over

15 m, the system must be filled with additional refrigerant in ac-

cordance with the table.

*Example: When installing the 14 kW model at a distance of

50 m, 2100 g refrigerant must be added according to the fol-

lowing calculation: (50-15) x 60 g = 2100 g

NOTE

If the indoor unit is mounted 4 or more metres higher than the

outdoor unit, a cooling technology specialist must perform a

separate check to ensure that the devices for conveying the

oil up and down the pipes have been installed correctly in the

hot gas pipe.

NOTE

The rated output of the device corresponds to the standard

pipe length and the maximum possible length.

ATTENTION!

Incorrect filling with refrigerant could lead to faults during

operation.

1) Production operation (see model name label)

2) Installation operation (where possible, attach alongside the

maintenance connections for adding or removing refriger-

ant)

3) Total filling (1, + 2,)

8.1.2 Preparation for pipework

The preparation of the pipework takes place in five steps. One

main cause of refrigerant leaks is incorrect flanging. Flanging

must be carried out carefully and according to the following

steps.

Step 1: Cutting pipes and cables

Use the installation kit for pipework or the pipes purchased

from your local dealer.

Measure the distance between the indoor and outdoor

unit.

Cut the pipes slightly longer than the measured distance.

Step 2: Removing burrs

Remove all burrs from the interface of the pipework.

Hold the pipe end downwards so that no burrs can fall into

the pipe.

Step 3: Inserting screw nuts

Remove the screw nuts on the indoor and outdoor unit.

Insert the screw nuts into the deburred pipe.

No nuts can be inserted into the pipe after flanging.

Model

Pipe size (mm)

(diameter: ) Length A (m) Rise B (m) *additional

refrigerant

(g/m)

Gas Liquid Normal Min. Max. Normal Max.

9 kW 15.88

(5/8")

9.52

(3/8") 7.5 3 50 0 30 30

14 kW 15.88

(5/8")

9.52

(3/8") 7.5 3 50 0 30 60

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Copper pipe

90qTilted Uneven Raw

Pipe

Reamer

Hold facing

downwards

Screw nut

Copper pipe

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