Daikin EWAA0 DAV3P Series Installer's Reference Manual page 133

EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
If...
▪ Space heating/cooling=On, and
▪ Operation mode=Heating, and
▪ The external room thermostat is
"Thermo OFF", and
▪ Outdoor temperature drops below
6°C
▪ Space heating/cooling=On, and
▪ Operation mode=Cooling
Room thermostat control ([C‑07]=2)
During room thermostat control, room frost protection [2‑06] is guaranteed when
activated. If so, and the room temperature drops below the room antifrost
temperature [2‑05], the unit will supply leaving water to the heat emitters to heat
up the room again.
# Code
[1.4.1] [2-06]
[1.4.2] [2-05]
INFORMATION
When the dedicated Human Comfort Interface (BRC1HHDA used as room
thermostat) is disconnected (because of incorrect wiring or damage of the cable),
then room frost protection is NOT guaranteed.
NOTICE
If Emergency is set to Manual ([9.5.1]=0), and the unit is triggered to start
emergency operation, the unit will stop and needs to be recovered manually via the
user interface. To recover operation manually, go to the Malfunctioning main
menu screen, and confirm emergency operation before starting.
Room frost protection is active even if the user does not confirm emergency
operation.
Setpoint range
Only applicable in room thermostat control.
To save energy by preventing overheating or undercooling the room, you can limit
the range of the room temperature for heating and/or cooling.
NOTICE
When adjusting the room temperature ranges, all desired room temperatures are
also adjusted to guarantee they are between the limits.
# Code
[1.5.1] [3-07]
[1.5.2] [3-06]
[1.5.3] [3-09]
▪ The unit will supply leaving water to
the heat emitters to heat up the room
again, and
▪ the temperature setpoint of the
leaving water will be lowered.
There is no room frost protection.
Description
Activation:
▪ 0 No: Antifrost functionality is OFF.
▪ 1 Yes: Antifrost functionality is on.
Room setpoint:
▪ 4°C~16°C
Description
Heating minimum
Heating maximum
Cooling minimum
11 Configuration
|
Then...
Installer reference guide
133