Daikin EWYA004D2V3P Installer's Reference Manual page 22

5 | About the units and options
Installer reference guide
22
Remote outdoor sensor (EKRSCA1)
By default the sensor inside the outdoor unit will be used to measure the outdoor
temperature.
As an option the remote outdoor sensor can be installed to measure the outdoor
temperature on another location (e.g. to avoid direct sunlight) to have an
improved system behaviour.
For installation instructions, see the installation manual of the remote outdoor
sensor and the addendum book for optional equipment.
INFORMATION
You can only connect either the remote indoor sensor or the remote outdoor sensor.
PC cable (EKPCCAB4)
The PC cable makes a connection between the hydro PCB (A1P) of the outdoor unit
and a PC. It gives the possibility to update the hydro software and EEPROM.
For installation instructions, see:
▪ Installation manual of the PC cable
▪ "11.1.2 To connect the PC cable to the switch
External backup heater kit (EKLBUHCB6W1) + bypass valve kit (EKMBHBP1)
For reversible models, you can install the external backup heater kit
(EKLBUHCB6W1).
For installation instructions, see:
▪ Installation manual of the external backup heater kit
▪ "To connect the backup heater
installation manual of the backup heater)
If you install the external backup heater kit, then under certain conditions you also
need to install a bypass valve kit (EKMBHBP1). See:
▪ "Bypass valve kit necessity" [
▪ "To connect the bypass valve
sheet delivered with the bypass valve kit)
Universal centralised controller (EKCC8-W)
Controller for cascade control.
Bizone kit (EKMIKPOA or EKMIKPHA)
You can install an optional bizone kit.
For installation instructions, see the installation manual of the bizone kit.
See also:
▪ "6.2.3 Multiple rooms – Two LWT
4
▪ "Bizone kit" [ 178]
Human Comfort Interface (BRC1HHDA) used as room thermostat
▪ The Human Comfort Interface (HCI) used as room thermostat can only be used in
combination with the user interface connected to the outdoor unit.
▪ The Human Comfort Interface (HCI) used as room thermostat needs to be
installed in the room that you want to control.
4
box" [
4
kit" [ 82] (this topic partially supersedes the
4
86]
kit" [ 4 87] (this topic supersedes the instruction
4
zones" [ 33]
106]
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09