To Perform An Actuator Test Run; Underfloor Heating Screed Dryout - Daikin Altherma EHVH04S18CB3V Installer's Reference Manual

Result: The test run starts. It stops automatically when done
(±30 min). To stop it manually, 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.
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 leaving water temperature (heating/cooling mode) and
tank temperature (domestic hot water 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, 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
▪ 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.
▪ Solar pump test
▪ 2-way valve test
▪ 3-way valve test
▪ Bottom plate heater test
▪ Bivalent signal test
▪ Alarm output test
▪ Cooling/heating signal test
▪ Quick heat-up test
▪ Circulation pump test
ERLQ004~008CA + EHVH/X04+08S18+26CB
Daikin Altherma – Low temperature split
4P384973-1A – 2016.02
, select OK and press .
"To set the user
page 46.
. Example: Pump.
, select OK and press .
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, room
temperature home page, and domestic hot water home page are
turned OFF.
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.
When no outdoor unit is installed yet, then connect the main power
supply cable to the indoor unit via X2M/30 and X2M/31. See
"7.9.7 To connect the main power supply" on
INFORMATION
▪ If Emergency is set to Manual ([A.5.1.2]=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.
NOTICE
Room frost protection is default disabled ([2‑06]=0). Do
NOT enable this function until the underfloor screed dryout
function is completed successfully. Ignoring this notice can
result in cracking of the screed.
NOTICE
For the underfloor heating screed dryout to be able to start,
make sure the following settings are met:
▪ [2‑06]=0
▪ [4‑00]=1
▪ [4‑04]=2
▪ [C‑02]=0
▪ [D‑01]=0
▪ [4‑08]=0
▪ [4‑01]≠1
The installer can program up to 20 steps. For each step he needs to
enter:
1 the duration in hours, up to 72 hours,
2 the desired leaving water temperature.
Example:
9 Commissioning
page 41.
Installer reference guide
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