Daikin RWEQ96TAYD Series, Installation Manual

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4 Preparation
Installation manual
9
RWEQ96~432TAYD ∗ + RWEQ96~432TATJ ∗
VRV W T-Series water-cooled system air conditioner
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 / KHRP26M22HA
KHRP26M33H9 / KHRP26M33HA
KHRP26M72H9 / KHRP26M72HA
KHRP26M73HU9 / KHRP26M73HUA
Refnet joint KHRP26A22T9 / KHRP26A22TA
KHRP26A33T9 / KHRP26A33TA
KHRP26M72TU9 / KHRP26M72TUA
KHRP26M73TU9 / KHRP26M73TUA
In case of heat recovery system
Description Model name
Refnet header KHRP25M33H9 / KHRP25M33HA
KHRP25M72H9 / KHRP25M72HA
KHRP25M73HU9 / KHRP25M73HUA
Refnet joint KHRP25A22T9 / KHRP25A22TA
KHRP25A33T9 / KHRP25A33TA
KHRP25M72TU9 / KHRP25M72TUA
KHRP25M73TU9 / KHRP25M73TUA
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
INFORMATION
The cool/heat selector can only be used when the
refrigerant system is configured as heat pump system.
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 49 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.
01_EN_4P602454-1C.indd 9 2020/07/29 16:16:39