Final Check; To Perform A Test Run Of The Outdoor Unit; Refrigerant Added Using Automatic Charging; Refrigerant Added Using Manual Charging (Cooling Mode) - Daikin SERHQ032BAW1 Installer And User Manual

Pump rotation direction
If the 3-phase power input to the indoor unit is not
correctly wired (X1M), the pump may rotate in the wrong
direction. When this happens, the pump may slowly
overheat due to reduced air flow, fan ventilation may be
reduced and the motor may consume more power. The
indicator on the pump motor fan cover indicates the
direction of rotation of the pump. Check operation of this
indicator before starting the unit for the first time or when
the position of the indicator has changed. If the indicator is
in the white/reflecting field, switch off the power supply
and switch any two of the incoming supply wires at X1M.
The correct direction of rotation is also shown by arrows
on the pump motor fan cover.
a
a = pump rotation direction indicator
Pipe size and pipe insulation
Be sure that correct pipe sizes are installed and that the
insulation work is properly executed.
The air purge valve is open (at least 2 turns).
Shut-off valves
Be sure that the shut-off valves are correctly installed and
fully open.
Filter
Make sure that the filter is installed correctly.
Damaged equipment
Check the inside of the unit on damaged components or
squeezed pipes.
Brazing
Take care not to damage the piping insulation when
brazing field piping.
Water leak
Check the inside of the unit for water leakage. If there is a
water leak, try to repair the leak. If the repair is
unsuccessful, close the water inlet and outlet shut-off
valves and call your local dealer.
Installation date and field setting
Be sure to keep record of the installation date on the
sticker on the rear of the upper front panel according to
EN60335‑2‑40 and keep record of the contents of the field
setting(s).
Schedule timer form
Fill out the form at the very end of this document. When
programming the schedule timer, this form can help you
define the required actions for each day.
NOTICE
Operating the system with closed valves will damage the
pump.
Once all checks are fulfilled, the unit must be closed, only then can
the unit be powered up. When the power supply to the unit is turned
on, " " is displayed on the user interface during its initialization,
which may take up to 30 seconds. During this process, the user
interface cannot be operated.
SERHQ020~032BAW1 + SEHVX20~64BAW
Split packaged air-cooled water chiller
4P508020-1A – 2018.01
8.5

Final check

Before switching on the unit, read the following recommendations:
▪ When the complete installation and all necessary settings have
been carried out, be sure that all panels of the unit are closed. If
this is not the case, inserting your hand through the remaining
openings can cause serious injury due to electrical and hot parts
inside the unit.
▪ The service panel of the electrical component box may only be
opened by a licensed electrician for maintenance purposes.
DANGER: RISK OF ELECTROCUTION
Do NOT leave the unit unattended when the service cover
is removed.
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 48 hours before reaching
smooth operation and stable power consumption.
8.6 To perform a test run of the
outdoor unit
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it will
cause injury.
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.
8.6.1 Refrigerant added using automatic
charging
The test run will first run the following checks:
▪ Are the stop valves open?
▪ Is the wiring correct?
▪ Piping length
▪ Initial refrigerant state
This checking operation takes ±3 hours (±4 hours in low outdoor
temperature) to complete.
The system cannot check the initial refrigerant state if the outdoor or
indoor temperature is out
0~43°C DB, indoor temperature: 20~32°C DB) or if the unit is forced
OFF during the test run. In this case, after performing the check
operation, normal operation is possible although error code
displayed on the indoor unit user interface and the refrigerant leak
detection function cannot be used. Perform the check operation
again and complete the judgement of initial refrigerant state.
Perform the test run procedure.
8.6.2 Refrigerant added using manual charging
(cooling mode)
The test run will first run the following checks:
▪ Are the stop valves open?
▪ Is the wiring correct?
8 Commissioning
of range (outdoor temperature:
Installer and user reference guide
is
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