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4.5
Combining units and options
4.5.1
About combining units and options
NOTICE
To be sure your system setup (outdoor unit+indoor unit(s))
will work, you have to consult the latest technical
engineering data for VRV IV-S heat pump.
The VRV IV-S heat pump system can be combined with several
types of indoor units and is intended for R410A use only.
For an overview which units are available you can consult the
product catalogue for VRV IV-S.
An overview is given indicating the allowed combinations of indoor
units and outdoor units. Not all combinations are allowed. They are
subject to rules (combination between outdoor-indoor, combinations
between indoor units, etc.) mentioned in the technical engineering
data.
4.5.2
Possible combinations of indoor units
In general following type of indoor units can be connected to a VRV
IV-S heat pump system. The list is non-exhaustive and is depending
on both outdoor unit model and indoor unit model combinations.
▪ VRV direct expansion (DX) indoor units (air to air applications).
4.5.3
Possible options for the outdoor unit
INFORMATION
Refer to the technical engineering data for the latest option
names.
Refrigerant branching kit
Description
Refnet header
Refnet joint
For the selection of the optimal branching kit, please refer to
"5.3.4 To select refrigerant branch kits" on
Cool/heat selector
In order to control the cooling or heating operation from a central
location, the following option can be connected:
Description
Cool/heat selector switch
Cool/heat selector cable
With optional fixing box for the
switch
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.
The external control adapter has to be installed in the indoor unit.
PC configurator cable (EKPCCAB)
You can make several commissioning field settings through a
personal computer interface. For this option EKPCCAB is required
which is a dedicated cable to communicate with the outdoor unit.
The
user
interface
software
www.daikineurope.com/support-and-manuals/software-downloads/.
RXYSQ6T7Y1B9
VRV IV-S system air conditioner
4P404677-1A – 2016.03
Model name
KHRQ22M29H
KHRQ22M20T
page 13.
RXYSQ4~6_Y1
KRC19-26A
EKCHSC
KJB111A
is
available
on
http://
5
Preparation
5.1
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 electrical wiring
5.2
Preparing installation site
Do NOT install the unit in places often used as work place. In case
of construction works (e.g. grinding works) where a lot of dust is
created, the unit must be covered.
Choose the installation location with sufficient place for carrying the
unit in and out of the site.
5.2.1
Installation site requirements of the
outdoor unit
INFORMATION
Also read the following requirements:
▪ General
installation
"General safety precautions" chapter.
▪ Service space requirements. See the "Technical data"
chapter.
▪ Refrigerant
piping
difference). See further in this "Preparation" chapter.
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
This unit, both indoor and outdoor, is suitable for
installation
in
a
commercial
environment.
NOTICE
The equipment described in this manual may cause
electronic noise generated from radio-frequency energy.
The equipment complies to specifications that are
designed to provide reasonable protection against such
interference. However, there is no guarantee that
interference will not occur in a particular installation.
It is therefore recommended to install the equipment and
electric wires keeping proper distances away from stereo
equipment, personal computers, etc.
b
e
c
d
d
a
a
Personal computer or radio
b
Fuse
c
Earth leakage protector
d
User interface
e
Indoor unit
f
Outdoor unit
5 Preparation
site
requirements.
See
the
requirements
(length,
height
and
light
industrial
(mm)
c
b
f
Installer and user reference guide
9
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