To Perform An Air Purge; To Perform A Test Run; To Perform An Actuator Test Run; To Perform An Underfloor Heating Screed Dryout - Daikin Altherma EHVZ-CB3V Installation Manual

6 Commissioning
9 If the additional pump is still assisting (the green LED on the
right hand sided pump is ON), increase the flow until the
additional pump is NOT assisting anymore (LED is OFF).
10 Go to [6.1.8]: > Information > Sensor information > Flow rate
to check the flow rate.
Bypass valve foreseen?
Yes
Modify the bypass valve setting
to reach the minimum required
flow rate + 2 l/min
Minimum required flow rate during defrost/backup heater
operation
04+08 models
16 model
6.2.2

To perform an air purge

Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1 Go to [A.7.3]: > Installer settings > Commissioning > Air
purge.
2 Set the type.
3 Select Start air purge and press
4 Select OK and press .
Result: The air purge starts. It stops automatically when done. To
stop it manually, press , select OK and press
INFORMATION
For both manual and automatic air purge, 1 temperature
zone is purged with each air purge start. To purge the
other temperature zone, you have to restart the air purge
function. When performing an air purge for the first time,
the main temperature zone will be purged.
6.2.3

To perform a test run

INFORMATION
The test run only applies to the additional temperature
zone.
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1 Set the user permission level to Installer. See
permission level to Installer" on
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
Installation manual
20
No
In case the actual flow rate is
below the minimum flow rate
(required during defrost/backup
heater operation), modifications
at hydraulic configuration are
required. Increase the space
heating loops that can NOT be
closed or install a pressure
controlled bypass valve.
12 l/min
15 l/min
.
.
"To set the user
page 13.
, select OK and press .
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.
6.2.4

To perform an actuator test run

Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1 Set the user permission level to Installer. See
permission level to Installer" on
2 Make sure the room temperature control, the leaving water
temperature control and the domestic hot water 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
5 Select OK and press .
Result: The actuator test run starts. It automatically stops when
finished. To stop it manually, press
Possible actuator test runs
▪ Backup heater (step 1) test
▪ Pump test (only the pump of the additional temperature zone)
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
▪ 3-way valve test (3-way valve for switching between space
heating and tank heating)
▪ Bottom plate heater test
▪ Bivalent signal test
▪ Alarm output test
▪ Heating signal test
▪ Quick heat-up test
▪ Circulation pump test
6.2.5 To perform an underfloor heating screed
dryout
Prerequisite: Make sure there is ONLY 1 user interface connected
to your system to perform an underfloor heating screed dryout.
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1 Go to [A.7.2]: > Installer settings > Commissioning > UFH
screed dryout.
2 Set a dryout program.
3 Select Start dryout and press
4 Select OK and press .
Result: The underfloor heating screed dryout starts. It stops
automatically when done. To stop it manually, press
and press .
"To set the user
page 13.
. Example: Pump.
, select OK and press .
.
, select OK
EHVZ04~16S18CB3V
Daikin Altherma – Low temperature split
4P401672-1E – 2018.02