Daikin SEHVX20BAW, Инструкция по установке и эксплуатации

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7 Commissioning
Installation and operation manual
32
SERHQ020~0 SEHVX20~64BAW
Split packaged air-cooled water chiller
4P508019-1C – 2018.04
7.4 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.
7.5 About the test run
INFORMATION
When the unit is powered on for the first time, an
initialisation takes place. This will take maximum
12 minutes.
When using the remote controller during the initialisation,
an error code (
) can be displayed.
The installer is obliged to verify correct operation of the system after
installation. Therefore, a test run must be performed according to the
procedures described below. At any time it is possible to check
correct operation and space heating.
INFORMATION
During the first start up of the unit (the first 48 hours of
compressor running), the noise level of the unit may be
higher than mentioned in the technical specifications. This
is not an abnormal event.
7.5.1 To display the temperature on the remote
controller
The actual temperatures can be displayed on the remote controller.
1 Press for 5 seconds.
Result: The leaving water temperature is displayed ( , / ,
and blink).
2 Press and to display:
▪ The entering water temperature ( and / blink, and
flashes slowly).
▪ The indoor temperature ( and / blink).
▪ The outdoor temperature ( and blink).
3 Press again to leave this mode. If no button is pressed, the
remote controller leaves the display mode after 10 seconds.
7.5.2 To test space heating/cooling
1 Check the leaving water and entering water temperature using
the remote controller read-out mode and write down the
displayed values. See
"7.5.1 To display the temperature on the
remote controller" on page 32 .
2 Select the operation mode (heating or cooling).
3 Press 4 times.
Result: is displayed.
4 To test the space heating/cooling operation, press to start
the test run operation. When no action is performed, the remote
controller will return to normal mode after 10 seconds or by
pressing
once.
5 The test run operation will end automatically after 30 minutes or
when reaching the set temperature. The test run operation can
be stopped manually by pressing
once. If there are
misconnections or malfunctions, an error code will be displayed
on the remote controller. Otherwise, the remote controller will
return to normal operation.
6 To resolve any error codes, see "8.1 Error codes: Overview" on
page 33 .
7 Check the leaving water and entering water temperature using
the remote controller read-out mode and compare them with the
values noted in step 1. After 20 minutes of operation an
increase/decrease of the values should confirm the space
heating/cooling operation.
INFORMATION
Press once to display the last resolved error code.
Press again 4 times to return to normal mode.
INFORMATION
It is not possible to perform a test run if a forced operation
from the unit is in progress. If forced operation is started
during a test run, the test run will be aborted.
(external
control) will appear.
7.6 Correcting after abnormal
completion of the test run
The test operation is only completed if there is no malfunction code
displayed on the user interface or the H2P LED is not lit.
Main code Cause Solution
The stop valve of the outdoor unit is left closed. Open the stop valve on both the gas and liquid side.
Refrigerant overcharge. Recalculate the required amount of refrigerant from the
piping length and correct the refrigerant charge level by
recovering any excessive refrigerant with a refrigerant
recovery machine.
Insufficient refrigerant. Check if the additional refrigerant charge has been finished
correctly. Recalculate the required amount of refrigerant
from the piping length and add an adequate amount of
refrigerant.
Reversed power supply phase malfunction. Correct phase order.