Installation manual
14
EWAQ+EWYQ005~007ACV3P
Packaged air-cooled water chillers and
packaged reversible air to water heat pumps
4PW33165-1D
Test run and final check
The installer is obliged to verify correct operation of the unit after
installation.
Test run operation
1
Push the
z
button 4 times so that the
t
icon is displayed.
2
Depending on the unit model, heating operation, cooling
operation or both must be tested as follows (when no action is
performed, the digital controller 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
o
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
o
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
o
button once. If there
are misconnections or malfunctions, an error code will be
displayed on the digital controller. Otherwise, the digital
controller will return to normal operation.
4
To resolve the error codes, see
Final check
Before handing over the unit to the user, read following
recommendations:
■
When the complete installation and all necessary settings have
been carried out, close all unit covers.
■
The service panel of the switch box may only be opened by a
licensed electrician for maintenance purposes.
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.
If the unit is used for air conditioning application, the described
checks must be executed at least once a year. In case the unit is
used for other applications, the checks must be executed every 4
months.
Beware that some parts of the unit can be extremely hot.
Chiller unit
1
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.
2
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.
3
Water pressure
Check if the water pressure is above 0.3 bar. If necessary add
water.
4
Water filter
Clean the water filter.
5
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 Daikin
dealer.
■
In case the water keeps running out of the unit, close both
the water inlet and oulet shut-off valves first and then contact
your local Daikin dealer.
Digital controller
The digital controller does not need maintenance.
Remove dirt with a soft damp cloth.
NOTE
Remark 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.
NOTE
To display the last resolved error code, push the
z
button 1 time. Push the
z
button again 4 times to
return to normal mode.
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.
Do never clean the unit with water under pressure.
