9 Hand-over to the user
Installer and user reference guide
32
LRMEQ+4BY1
Air-cooled refrigeration condensing unit
4P500362-1A – 2018.09
Fuses, circuit breakers, or protection devices
Check that the fuses, circuit breakers, or the locally
installed protection devices are of the size and type
specified
in
the
chapter
. Be sure that neither a fuse nor
a protection device has been bypassed.
Internal wiring
Visually check the electrical component box and the
inside of the unit for loose connections or damaged
electrical components.
Pipe size and pipe insulation
Be sure that correct pipe sizes are installed and that the
insulation work is properly executed.
Stop valves
Be sure that the stop valves are open on both liquid and
gas side.
Damaged equipment
Check the inside of the unit on damaged components or
squeezed pipes.
Refrigerant leak
Check the inside of the unit on refrigerant leakage. If there
is a refrigerant leak, try to repair the leak. If the repair is
unsuccessful, call your local dealer. Do not touch any
refrigerant which has leaked out from refrigerant piping
connections. This may result in frostbite.
Oil leak
Check the compressor for oil leakage. If there is an oil
leak, try to repair the leak. If the repairing is unsuccessful,
call your local dealer.
Air inlet/outlet
Check that the air inlet and outlet of the unit is NOT
obstructed by paper sheets, cardboard, or any other
material.
Additional refrigerant charge
The amount of refrigerant to be added to the unit shall be
written on the included "Added refrigerant" plate and
attached to the rear side of the front cover.
Installation date and field setting
Be sure to keep record of the installation date on the rear
of the front panel according to EN60335‑2‑40 and keep
record of the contents of the field setting(s).
8.4
Checklist during commissioning
To perform a
test run
.
8.4.1
About the test run
Make sure to carry out the system test operation after the first
installation.
The procedure below describes the test operation of the complete
system.
8.4.2
To perform a test run (7-LEDs display)
1
Make sure all field settings you want are set; see
2
Turn ON the power to the outdoor unit and the connected
indoor units.
3
Turn ON the (remote) operation switch of the outdoor unit.
4
Check the sight glass of the outdoor unit. If the refrigerant is
NOT in sealing state, charge extra refrigerant, but do NOT
exceed 25% of the determined additional refrigerant amount
(see
"6.7.3 To determine the additional refrigerant amount" on
b
a
c
d
O
Sealing state (= sufficient refrigerant)
X
Insufficient refrigerant
a
Sight glass
b
Full of liquid
c
A little foam in the liquid
d
A lot of foam in the liquid
5
Check if the indoor unit blows cold air, and the room/showcase
temperature decreases.
6
Turn OFF the (remote) operation switch of the outdoor unit.
CAUTION
Do NOT turn OFF power by disconnecting the power
supply directly.
Possible consequence:
▪ The auto restart function of the unit might automatically
resume
operation
after
the
power
supply
is
reconnected.
▪ Compressor malfunction.
7
Check the test operation results on the outdoor unit 7‑LEDs
display.
Completion
Description
Normal
completion
Abnormal
completion
Refer to
"8.4.3 Correcting after abnormal
completion of the test run" on page 32
actions for correcting the abnormality. When
the test operation is fully completed, normal
operation is possible.
8.4.3
Correcting after abnormal completion of
the test run
The test operation is only completed if no malfunction occurs. In
case of a malfunction, perform correcting actions as explained in the
error code table (see
"11.3.2 Error codes: Overview" on page 34
).
Carry out the test operation again and confirm that the abnormality is
properly corrected.
INFORMATION
When a malfunction occurs, X3M outputs a caution (C/C1)
or warning (C/W1) signal, and the H2P LED on the main
PCB lights up.
8.4.4
Operating the unit
Once the unit is installed and test operation of outdoor unit and
indoor units is finished, the operation of the system can start.
9
Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
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