To Perform An Actuator Test Run; Underfloor Heating Screed Dryout - Daikin CHYHBH05AA Installer's Reference Manual

10 Commissioning
During a heating test run, the unit will start up in hybrid operation.
The setpoint of the gas boiler during a heating test run is 40°C. Keep
in mind the 5°C overshoot that is possible during boiler operation,
especially in combination with floor heating loops.
10.4.5

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
▪ 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
▪ Shut-off valve test
▪ 3-way valve test
▪ Alarm output test
▪ Heating signal test
▪ Quick heat-up test
▪ DHW pump test
▪ Gas boiler test
▪ Bypass valve test
INFORMATION
The setpoint during a boiler test run is 40°C. Keep in mind
the 5°C overshoot that is possible during boiler operation,
especially in combination with floor heating loops.
10.4.6

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 gas boiler 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
"7.10.5 To connect the main power supply of the indoor unit" on
page 34.
Installer reference guide
72
"To set the user
page 46.
. Example: Pump.
, select OK and press .
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.
NOTICE
To perform an underfloor heating screed dryout, room frost
protection needs to be disabled ([2‑06]=0). By default, it is
enabled ([2‑06]=1). However, due to the "installer-on-site"
mode (see "Checklist before commissioning"), room frost
protection will be automatically disabled for 36 hours after
the first power-on.
If the screed dryout still needs to be performed after the
first 36 hours of power-on, manually disable room frost
protection by setting [2‑06] to "0", and KEEP it disabled
until the screed dryout has finished. Ignoring this notice will
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:
▪ [4‑00]=1
▪ [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:
T
24h (1) 36h (2)
25°C (1) 35°C (2)
A1
T Desired leaving water temperature (15~55°C)
t Duration (1~72 h)
(1) Action step 1
(2) Action step 2
Daikin hybrid for multi heat pump – heat pump module
t
CHYHBH05+08AA + EHYKOMB33A
4P471761-1A – 2017.10