8 Commissioning
Installer and user reference guide
31
LRMEQ+4BY1
Air-cooled refrigeration condensing unit
4P500362-1A – 2018.09
Setting
(= binary)
Value
Description
LRMEQ*
LRLEQ*
[2‑18]
Low noise operation
With this setting one of three low‑noise operation modes can be
selected. Low‑noise mode can be activated by turning ON the
contact between terminals X2M/A and X2M/B. Refer to settings
[2‑13] and [2‑17] to set parameters for the low‑noise levels.
(default)
Correction of evaporating temperature (only
setting [2-13] applies)
Adjustment of fan and compressor speed (only
setting [2-17] applies)
Correction of evaporating temperature and
adjustment of fan and compressor speed (both
settings [2-13] and [2-17] apply)
INFORMATION
For LRMEQ3/LRLEQ3 outdoor units, low noise steps 2, 3,
and 4 have the same sound reducing effect.
7.2.9
To connect the PC configurator to the
outdoor unit
a
b
X41A
A1P
X41A
2
3
4
5
H J
ST
a
PC
b
Cable (EKPCCAB)
X41A
Connector
A1P
Outdoor unit main PCB
8
Commissioning
8.1
Overview: Commissioning
After installation and once the field settings are defined, the installer
is obliged to verify correct operation. Therefore a test run MUST be
performed according to the procedures described below.
This chapter describes what you have to do and know to
commission the system after it is configured.
Commissioning typically consists of the following stages:
1
Checking the "Checklist before commissioning".
2
Performing a test run.
3
If necessary, correcting errors after abnormal completion of the
test run.
4
Operating the system.
8.2
Precautions when commissioning
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
CAUTION
Do NOT perform the test operation while working on
the indoor units.
When performing the test operation, NOT only the outdoor
unit, but the connected indoor unit will operate as well.
Working on an indoor unit while performing a test operation
is dangerous.
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. Do NOT remove the fan guard. When the
fan is rotating at high speed, it will cause injury.
INFORMATION
During the first running period of the unit, the required
power may be higher than stated on the nameplate of the
unit. This phenomenon is caused by the compressor, that
needs a continuous run time of 50 hours before reaching
smooth operation and stable power consumption.
8.3
Checklist before commissioning
After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit MUST be closed, ONLY then
can the unit be powered up.
You read the complete installation and operation
instructions, as described in the
installer and user
reference guide
.
Installation
Check that the unit is properly installed, to avoid abnormal
noises and vibrations when starting up the unit.
Field wiring
Be sure that the field wiring has been carried out
according to the instructions described in the chapter
"6.8 Connecting the electrical wiring" on page 24
according to the wiring diagrams and according to the
applicable legislation.
Power supply voltage
Check the power supply voltage on the local supply panel.
The voltage MUST correspond to the voltage on the
identification label of the unit.
Earth wiring
Be sure that the earth wires have been connected
properly and that the earth terminals are tightened.
Insulation test of the main power circuit
Using a megatester for 500 V, check that the insulation
resistance of 2 MΩ or more is attained by applying a
voltage of 500 V DC between power terminals and earth.
NEVER use the megatester for the transmission wiring.
Содержание LRMEQ4BY1
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