Bedienungsanleitung REMKO MVV 2000 DC Duo (Seite 42 von 68) (Englisch)

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10 Commissioning

NOTICE!

Commissioning should only be performed by

specially trained personnel and documented

after the certificate has been issued. Observe

the operating manuals for the indoor unit and

outdoor unit when commissioning the entire

system.

Once all the components have been connected

and tested, the system can be put into operation. A

functional check should be performed to verify its

correct function and identify any unusual operating

behaviour prior to handing it over to the operator

This check is dependent on the installed indoor

units. The processes are specified in the operating

manual for the indoor units being commissioned.

NOTICE!

Always pay attention to the correct electrical

connection of the control line and power supply

to all units.

Functional checks and test run

Check the following points:

n Leak-tightness of the refrigerant piping.

n Compressor and fan running smoothly.

n In cooling mode, cold air output by the indoor

unit, and warm air output by the outdoor unit.

n Function test of the indoor unit and all program

sequences.

n Check of the surface temperature of the suc-

tion pipe and that the vaporiser is not over-

heating. 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 tempera-

ture.

n Record the measured temperatures in the

commissioning report.

Function test of cooling operating mode

1. Remove the protective caps from the valves.

2. Start the commissioning procedure after

evacuating the pipe system by briefly

opening the shut-of

f valves on the outdoor

unit until the pressure gauge indicates a

pressure of approx. 2 bar.

3. Check all connections for leaks with leak

detection spray and suitable leak detectors.

4. If no leaks are found, fully open the shut-of

valves by turning them anti-clockwise using a

spanner. If leaks were found, draw off the

refrigerant and rework the defective connec-

tion. It is imperative that the vacuum creation

and drying steps are repeated!

5. Activate the main circuit breaker or fuse.

6. Use the remote control to set the indoor

unit's target temperature to a value that is

lower than the existing room temperature.

Due to the turn on delay

, the compressor

will start up a few minutes later.

7. Switch the indoor units to cooling mode.

8. Check all regulating, control and safety

devices for function and correct adjustment

during the test run.

9. Check the control of the indoor unit with the

functions described in the operating instruc-

tions: timer

, temperature adjustments and all

mode settings.

Check the individual operating parame-

ters with the help of the display on the

outdoor unit as described in the "Func-

tional checks and test run" section, and

note the value in the commissioning log.

10. Measure the overheating, outside, internal,

outlet and evaporator temperatures and

record the test data in the commissioning log.

11. Remove the pressure gauge.

Final tasks

n Use the remote control to set the target tem-

perature to the required value.

n Re-install all disassembled parts.

n Familiarise the operator with the system.

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