Bedienungsanleitung REMKO ML522 DC (Seite 24 von 32) (Englisch)

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Add refrigerant

The equipment contains

a basic quantity of refrigerant.

Furthermore, for refrigerant line

lengths of more than 5 metres

per circuit, an additional amount

of refrigerant must be added, in

accordance with the following

chart:

262

352

522

Basic

line length

Additional ﬁll quan-

tity

Up to and incl.

5 m

0 g/m

5 m to max.

20 m

g/m

After the tightness check has

been successfully completed,

connect the vacuum pump via

the pressure gauge station to

the valve connections on the

outdoor component (see chapter

"Tightness check") and create

a vacuum.

Perform the following checks

prior to putting the unit into

operation for the ﬁrst time and

after any work on the refrigeration

circuit. Record the results in the

commissioning report:

■

Check all refrigerant

lines and valves using

leak detection spray or soapy

water for leaks and for

inadvertent reversal of the

suction and injection lines,

with the unit at a standstill.

■

Check refrigerant

lines and insulation for damage.

■

Check electrical

connection between

indoor unit and outdoor

component

for correct polarity.

■

Check that all fastenings,

mountings etc.

are ﬁrm and at the correct level.

Before

Commissioning

Make sure that the refrigerant

which is used is always ﬁlled

in liquid form!

ATTENTION

NOTE

Check the refrigerant ﬁll

quantity in the event of

overheating

Wear protective clothing when

handling refrigerant.

ATTENTION

Commissioning

Commissioning is only to be

performed and documented

by specially trained personnel.

NOTE

Once all the components have

been connected and tested, the

system can be commissioned.

A functional check should be

performed to verify its correct

function and identify any unusual

operational behaviour prior to

handing it over to the operator.

Function test and test run

Check the following points:

■

Leak tightness of refrigerant

lines.

■

Compressor and fan running

smoothly.

■

In cooling mode, cold air

output by the indoor unit, and

warm air output by the outdoor

component.

■

Functional test of the indoor

unit and all program sequences.

■

Check of the surface

temperature of the suction pipe

and determination of vaporiser

overheating. To measure

the temperature, hold the

thermometer to the suction

pipe and subtract the boiling

point temperature reading on

the pressure gauge from the

measured temperature.

■

Documentation of the

measured temperatures in the

commissioning report.

Check that the stop valves

and valve caps are tight after

carrying out any work on

the refrigerant circuit. Use

appropriate sealant products

as necessary.

NOTE

Functional test for the cooling

and heating modes

1. Remove the caps from the

valves.

2. Begin the commissioning

process by brieﬂy opening the

shut-off valves of the external

unit until the manometer

displays a pressure of approx.

2 bar.

3. Use leak detection spray or

suitable devices to check that all

the connections are leak tight.

REMKO ML...DC - ARCTIC

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REMKO ML522 DC Seite 24

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