Add refrigerant, Commissioning – REMKO RVD xxx DC User Manual

Page 27

Add refrigerant

The equipment contains a basic
quantity of refrigerant. Beyond
these conditions, for refrigerant
pipe lengths of more than 5 meters
per circuit, an additional amount of
refrigerant must be added, accord-
ing to the following chart:

Note that the employed refrig-
erant is always filled in liquid
form!

CAUTION

NOTE

Check the overheating to
determine the refrigerant fill
quantity

Wear protective clothing when
handling refrigerant.

CAUTION

Commissioning

Commissioning should only be
performed and documented by
specially trained personnel.

NOTE

The system can be commissioned
once all the components have
been connected and tested. A
functional check should be per-
formed to verify its correct func-
tion 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
pipes.

■

Compressor and fan running
smoothly.

■

In cooling mode, cold air should
be output by the indoor unit,
and warm air should be output
by the outdoor component.

■

Functional test of the indoor
unit and all program
sequences.

■

Check of the surface tempera-
ture of the suction pipe and
determination of vaporiser
overheating. To measure the
temperature, hold the ther-
mometer to the suction pipe
and subtract the boiling point
temperature reading on the
pressure gauge from the meas-
ured temperature.

■

Record the measured tem-
peratures in the commissioning
report.

Check that the stop valves and
valve caps are tight after carrying
out any work on the refrigerant
circuit. If necessary, use appropri-
ate sealant products.

NOTE

Functional test for cooling

and heating modes

1. Remove the caps

from the valves.

2. Begin the commissioning

process by briefly opening the

blocking valves of the external

section until the manometer

displays a pressure of approx. 2

bar.

3. Use leak detection spray or suit-

able devices to check that all

the connections are tight.

4. If no leaks are found, fully open

the stop valves by turning them

anti-clockwise using a spanner.

If leaks are found, repair the

faulty connection. It is impera-

tive that the vacuum creation

and drying steps are repeated.

5. Switch off the main circuit

breaker or remove the fuse

(provided by the customer).

6 Press the test knob on the

outdoor unit and wait until

a frequency of min. 50 Hz is

established.

7. Use the remote control to

switch on the unit and select

the cooling mode, maximum

fan speed and lowest target

temperature.

8. Check the overheating, out-

door, indoor, outlet and vapori-

sation temperatures and record

the measured values in the

commissioning report. Check

the correct function and set-

tings of all regulation, control

and safety devices.

9. Check the indoor unit control

system using the functions

described in the chapter "Oper-

ation". Timer, temperature set-

ting, fan speeds and switching

to ventilation or dehumidifying

mode.

10.Check the correct function

of the condensation pipe by

pouring distilled water into the

condensation tray.

A bottle with a spout is recom-

mended for pouring the water

into the condensation tray.

11. Switch the indoor unit to heat-

ing mode.

RVD

351

RVD

521

RVD

681

RVD

1051

Up to and

incl. 5m

0 g/m

From 5m to

max.

Length

g/m