Daikin VRV W T-series - Possible Options for the Outside Unit; 4 Preparation; Overview: Preparation; Preparing Installation Site

4 Preparation
Installation manual
9
RWEQ96~432TAYCU
VRV W T-Series water-cooled system air conditioner
4P540122-1B – 2018.11
3.5.5 Possible options for the outside unit
INFORMATION
Refer to the technical engineering data for the latest option
names.
Refrigerant branching kit
In case of heat pump system
Description Model name
Refnet header KHRP26M22H9
KHRP26M33H9
KHRP26M72H9
KHRP26M73HU9
Refnet joint KHRP26A22T9
KHRP26A33T9
KHRP26M72TU9
KHRP26M73TU9
In case of heat recovery system
Description Model name
Refnet header KHRP25M33H9
KHRP25M72H9
KHRP25M73HU9
Refnet joint KHRP25A22T9
KHRP25A33T9
KHRP25M72TU9
KHRP25M73TU9
For the selection of the optimal branching kit, please refer to
"4.3.3 To select refrigerant branch kits" on page 12.
Outside multi connection piping kit
In case of heat pump system
Number of outside units Model name
2 BHFP22T84U
3 BHFP22T126U
In case of heat recovery system
Number of outside units Model name
2 BHFP26T84U
3 BHFP26T126U
Cool/heat selector
In order to control the cooling or heating operation from a central
location, the following option can be connected:
Description Model name
Cool/heat change over switch KRC19-26A6
Cool/heat change over PCB BRP2A81
With optional fixing box for the
switch
KJB111A
External control adaptor (DTA104A61/62)
To instruct specific operation with an external input coming from a
central control the external control adaptor can be used. Instructions
(group or individual) can be instructed for low noise operation and
power consumption limitation operation.
PC configurator cable (999482P3)
You can make several commissioning field settings through a
personal computer interface. For this option 999482P3 is required
which is a dedicated cable to communicate with the outside unit.
4 Preparation
4.1 Overview: Preparation
This chapter describes what you have to do and know before going
on-site.
It contains information about:
▪ Preparingtheinstallationsite
▪ Preparingtherefrigerantpiping
▪ Preparingthewaterpiping
▪ Preparingtheelectricalwiring
4.2 Preparing installation site
4.2.1 Installation site requirements of the
outside unit
CAUTION
This unit is designed for indoor installation only.
▪ Provide required service space around the unit as stated in the
technical engineering book or in section "11.2 Service space:
Outside unit" on page 48 of this manual.
▪ Ensurethatthefoundationisstrongenoughtosupporttheweight
of the unit and the floor is flat to prevent vibration and noise
generation.
▪ Make sure the area is well ventilated. Do NOT block any
ventilation openings.
▪ Makesuretheunitislevel.
▪ Make sure to install the unit in a machine room that is free of
moisture. The unit is designed for indoor use only.
▪ Select the location of the unit in such a way that the sound
generated by the unit does not disturb anyone, and the location is
selected according the applicable legislation.
Do NOT install the unit in the following places:
▪ Inpotentiallyexplosiveatmospheres.
▪ In places where there is machinery that emits electromagnetic
waves. Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
▪ In places where there is a risk of fire due to the leakage of
flammable gases (example: thinner or gasoline), carbon fiber,
ignitable dust.
▪ Inplaces where corrosivegas(example: sulphurous acidgas) is
produced. Corrosion of copper pipes or soldered parts may cause
the refrigerant to leak.
▪ Inplaceswhereamineraloilmist,sprayorvapormaybepresent
in the atmosphere. Plastic parts may deteriorate and fall off or
cause water leakage.
NOTE
This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.