Daikin VRV 5-S - Page 62

16 | Special requirements for R32 units
Installer and user reference guide
62
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
For more information about the SVS output, see "20.3 To connect the external
outputs"[4126].
Indoor unit installation
NOTICE
If one or more rooms are connected to the unit using a duct system, make sure air
inlet AND outlet are connected directly to the same room by ducting. Do NOT use
spaces such as a false ceiling as a duct for the air inlet or outlet.
For installation of the indoor unit, refer to the installation and operation manual
delivered with the indoor unit. For compatibility of indoor units refer to the latest
version of the technical data book of this unit.
Depending on the room size in which the indoor unit is installed and the total
amount of refrigerant in the system, other safety measures are necessary for
indoor units. See "16.3To determine the required safety measures"[463].
An optional output PCB for the indoor unit can be added to provide output for
external device. The output PCB will trigger in case a leak is detected, the R32
sensor fails or when the sensor is disconnected. For exact model name see option
list of the indoor unit. For more information about this option, refer to the
installation manual of the optional output PCB.
Piping requirements
CAUTION
Piping MUST be installed according to instructions given in "18 Piping
installation" [4 87]. Only mechanical joints (e.g. braze+flare connections) that are
compliant with the latest version of ISO14903 can be used.
Low temperature solder alloys shall not be used for pipe connections.
For piping installed in the occupied space, make sure that the piping is protected
against accidental damage. Piping should be checked according to the procedure
as mentioned in "18.3Checking the refrigerant piping"[4102].
Remote controller requirements
For installation of the remote controller, please refer to the installation and
operation manual delivered with the remote controller. Each indoor unit must be
connected with a R32 safety system compatible remote controller (e.g.
BRC1H52/82* or later type). These remote controllers have implemented safety
measures that will warn the user visually and audibly in case of a leak.
For installation of the remote controller, it is mandatory to follow the
requirements.
1 Only a safety system compatible remote controller can be used. See technical
data sheet for remote controller compatibility (e.g. BRC1H52/82*).
2 Each indoor unit must be connected to a separate remote controller. In case
indoor units are operating under group control, it is possible to only use one
remote controller per room.