Test Run And Final Check; Test Run Operation (Manual); Final Check; Maintenance - Daikin EWAQ-ACV3 Installation Manual

T
EST RUN AND FINAL CHECK
The installer is obliged to verify correct operation of unit after
installation.

Test run operation (manual)

If required, the installer can perform a manual test run operation at
any time to check correct operation of cooling and heating.
Procedure
1 Push the z button 4 times so the t icon will be displayed.
2 Depending on the unit model, heating operation, cooling
operation or both must be tested as follows (when no action is
performed, the user interface will return to normal mode after 10
seconds or by pressing the z button once):
To test the heating operation push the h/c button so the h
•
icon is displayed. To start the test run operation press the
y button.
To test the cooling operation push the h/c button so the c
•
icon is displayed. To start the test run operation press the
y button.
3 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 the z button once. If there are
misconnections or malfunctions, an error code will be displayed
on the user interface. Otherwise, the user interface will return to
normal operation.
4 To resolve the error codes, see
To display the last resolved error code, push the z
NOTE
button 1 time. Push the z button again 4 times to
return to normal mode.
It is not possible to perform a test run if a forced
NOTE
operation from the unit is in progress. Should forced
operation be started during a test run, the test run will
be aborted.

Final check

Before switching on the unit, read following recommendations:
When the complete installation and all necessary settings have
been carried out, close all front panels of the unit and refit the
unit cover.
The service panel of the switch box may only be opened by a
licensed electrician for maintenance purposes.
NOTE Note that during the first running period of the unit,
required power input may be higher than stated on the
nameplate of the unit. This phenomenon originates
from the compressor that needs elapse of a 50 hours
run in period before reaching smooth operation and
stable power consumption.
EWAQ+EWYQ009~011ACV3 + EWAQ+EWYQ009~013ACW1
Packaged air-cooled water chillers and packaged
reversible air to water heatpumps
4PW51587-1A
"Error codes" on page 24.
M
AINTENANCE
In order to ensure optimal availability of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses or open the protection
devices of the unit.
Make sure that before starting any maintenance or
repair activity, also the power supply to the unit is
switched off.
Beware that some parts of the unit can be extremely hot.

Chiller unit

The described checks must be executed at least once a year by
qualified personnel.
1 Water pressure
Check if the water pressure is above 0.3 bar. If necessary add
water.
2 Water filter
Clean the water filter.
3 Water pressure relief valve
Check for correct operation of the pressure relief valve by
turning the red knob on the valve counter-clockwise:
If you do not hear a clacking sound, contact your local dealer.
In case the water keeps running out of the unit, close both
the water inlet and outlet shut-off valves first and then contact
your local dealer.
4 Pressure relief valve hose
Check that the pressure relief valve hose is positioned
appropriately to drain the water.
5 Air heat exchanger
Remove dust and any other contaminant from the coil fins using
a brush and a blower. Blow from the inside of the unit. Take care
not to bend or damage the fins.
6 Fan motor
Clean the cooling ribs of the motor.
Check on abnormal noises. If the fan or motor are damaged,
contact your local Daikin dealer.
7 Unit switch box
Carry out a thorough visual inspection of the switch box and look
for obvious defects such as loose connections or defective
wiring.
8 In case of use of glycol
Document the glycol concentration and the pH-value in the
system at least once a year.
A pH-value below 8.0 indicates that a signifcant portion of the
inhibitor has been depleted and that more inhibitor needs to
be added.
When the pH-value is below 7.0 then oxidation of the glycol
occured, the system should be drained and flushed
thoroughly before severe damage occurs.
Make sure that the disposal of the glycol solution is done in
accordance with relevant local and national legislation.
Installation manual
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