Daikin EWAQ004BAVP, Installer'S Reference Manual

Page: 68 / 92

9 Commissioning
Installer reference guide
68
EWAQ+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492900-1 – 2017.06
01:18
Tue
Air purge
l/min
Low
0.5 Flow rate
Speed
Stop Adjust
INFORMATION
If the temperature of the water circuit is low, and glycol was
added to it, then the flow rate will NOT be displayed.
To interrupt air purge
1 Press and press to confirm the interruption of the air
purge function.
9.4.3 To perform a test run
Prerequisite: Make sure that the leaving water temperature home
page and room temperature home page are turned OFF.
1 Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 47 .
2 Go to [A.7.1]: > Installer settings > Commissioning > Test
run.
3 Select a test and press . Example: Heating.
4 Select OK and press .
Result: The test run starts. It stops automatically when done
(±30 min). To stop it manually, press , select OK and press .
INFORMATION
When starting up the system in a cold climate, and NO
backup heater kit was installed, it may be required to start
up with a small water volume. To do this, gradually open
the heat emitters. As a result, the water temperature will
gradually rise. Monitor the inlet water temperature ([6.1.6]
in the menu structure) and make sure it does NOT drop
below 15°C.
INFORMATION
If 2 user interfaces are present, you can start a test run
from both user interfaces.
▪ The user interface used to start the test run displays a
status screen.
▪ The other user interface displays a "busy" screen. You
cannot use the user interface as long as the "busy"
screen is shown.
If the installation of the unit has been done correctly, the unit will
start up during test operation in the selected operation mode. During
the test mode, the correct operation of the unit can be checked by
monitoring the leaving water temperature (heating/cooling mode).
To monitor the temperature, go to [A.6] and select the information
you want to check.
9.4.4 To perform an actuator test run
Purpose of the actuator test run is to confirm the operation of the
different actuators (e.g., when you select pump operation, a test run
of the pump will start).
Prerequisite: Make sure that the leaving water temperature home
page and room temperature home page are turned OFF.
1 Set the user permission level to Installer. See "To set the user
permission level to Installer" on page 47 .
2 Make sure room temperature control and leaving water
temperature control are turned OFF via the user interface.
3 Go to [A.7.4]: > Installer settings > Commissioning >
Actuator test run.
4 Select an actuator and press . Example: Pump.
5 Select OK and press .
Result: The actuator test run starts. It automatically stops when
finished. To stop it manually, press , select OK and press .
Possible actuator test runs
▪ Backup heater (step 1) test
▪ Backup heater (step 2) test
▪ Pump test
INFORMATION
Make sure that all air is purged before executing the test
run. Also avoid disturbances in the water circuit during the
test run.
▪ 2-way valve test
▪ Bivalent signal test
▪ Alarm output test
▪ Cooling/heating signal test
▪ Circulation pump test
9.4.5 Underfloor heating screed dryout
This function is used for drying out the screed of an underfloor
heating system very slowly during the construction of a house. It
allows the installer to program and execute this program.
Make sure that the leaving water temperature home page and room
temperature home page are turned OFF.
If a backup heater kit is part of the system, this function can be
executed without finishing the outdoor installation. In this case, the
backup heater will perform the screed dryout and supply the leaving
water without heat pump operation.
INFORMATION
▪ If Emergency is set to Manual ([A.6.C]=0), and the unit
is triggered to start emergency operation, the user
interface will ask confirmation before starting. The
underfloor heating screed dryout function is active even
if the user does NOT confirm emergency operation.
▪ During underfloor heating screed dryout, pump speed
limitation [9‑0D] is NOT applicable.
NOTICE
The installer is responsible for:
▪ contacting the screed manufacturer for the initial
heating instructions to avoid cracking the screed,
▪ programming the underfloor heating screed dryout
schedule according to the above instruction of the
screed manufacturer,
▪ checking the proper functioning of the setup on a
regular basis,
▪ selecting the correct program complying with the type
of the used screed of the floor.