Daikin EKEXVA350 handleiding
Handleiding
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11 About the system
Installation and operation manual
16
EKEACBVE + EKEXVA50~500
Option kit for combination of Daikin outdoor units with field-
supplied air handling units
4P724517-1B – 2024.03
In case it is decided not to use the master-slave configuration, all
wiring connections must be performed.
The master-slave function is activated via a field setting and can only
be used with X, Y and W control (all connected EKEAs must be set
to the same control type). Only one EKEA can be set as master, the
rest of the connected EKEAs must be set to slaves (for more
information see the field setting 14(24)-3 in "16.2 Field
settings" [4 31]). The maximum number of EKEAs that can be
connected together is limited to 10 (including the master EKEA).
The communication between the master and the slave EKEA control
boxes is achieved in part via P1P2 and in part via additional physical
wires. Therefore, to be able to use this functionality, a remote
controller must always be connected (see "11.4 Remote controller
for EKEA" [414]). The number of signals shared over the physical
cable depends on the system layout.
There are two main system layouts in case of interlaced heat
exchanger applications:
▪ Separate refrigerant circuits system
▪ Combined refrigerant circuit system
The figures below show examples of both systems. The systems
that are shown in the examples each have three outdoor units, but
this is just for illustrative purposes.
Example combined refrigerant circuit system:
EKEA Master
T2T1F2F1P2P1
EKEA Slave
T2
R2T-R3T
R2T-R3T
R2T-R3T
AHU I/O
T1F2F1P2P1
EKEA Slave
T2T1F2F1P2P1
BRC
AHU
P2P1
Q2Q1F2F1F2F1
TO I/U TO O/U TO multi
Q2Q1F2F1F2F1
TO I/U TO O/U TO multi
Q2Q1F2F1F2F1
TO I/U TO O/U TO multi
Contr.
O/U O/U O/U
EKEXVA
EKEXVA
EKEXVA
EKEXVA
EKEXVA
/ /
Electrical wiring
Refrigerant piping
AHU Air handling unit
AHU I/O Air handling unit input/output signals
BRC Remote controller
Contr. Controller (field supply)
EKEA Control box
EKEXVA Expansion valve kit
Master Master
O/U Outdoor unit
Slave Slave
TO I/U Interconnecting wiring to indoor units (and EKEAs)
TO multi Interconnecting wiring between the outdoor units in the
same piping system
TO O/U Interconnecting wiring to other systems
Example separate refrigerant circuits system:
EKEA Slave
T2
R2T-R3T
R2T-R3T
AHU I/O
R2T-R3T
T1F2F1P2P1
EKEA Slave
T2T1F2F1P2P1
BRC
AHU
P2P1
Q2Q1F2F1F2F1
TO I/U TO O/U TO multi
Q2Q1F2F1F2F1
TO I/U TO O/U TO multi
Q2Q1F2F1F2F1
TO I/U TO O/U TO multi
Contr.
O/U O/U O/U
EKEXVA
EKEXVA
EKEXVA
EKEXVA
EKEXVA
EKEXVA
EKEA Master
T2T1F2F1P2P1
For the combined refrigerant circuit, there can be one or more
outdoor units that are connected to the same refrigerant circuit.
For the separate refrigerant circuits, there is always more than one
outdoor unit, so the number of outdoor units for this system is two or
more.
Additionally, there may be other electrical connections in reality that
are not shown in these examples. These are left out to make the
figure more clear. See other parts of the manual to find out which
electrical connections are required, and see the manual of the
outdoor unit for more information about the system.
Note:
▪ The remote controller is used to share signals between the master
and the slave EKEAs. To ensure proper functioning, the master
EKEA must have the lowest unit number of the remote controller
group. See the user reference guide of the remote controller for
instructions on how to change the unit number.
▪ When you want to use T3T4 on the EKEA master, this EKEA
master must be set as the cooling/heating master first. See:
▪ User reference guide of the remote controller
▪ "16.1To configure the control box"[429]
11.9.1 Combined refrigerant circuit system
The figure below shows how the inputs and outputs must be
connected in case of a combined refrigerant circuit system. This
means that the expansion valve kits of the EKEAs configured as
master and slave, are connected to the same refrigerant circuit.
Bekijk gratis de handleiding van Daikin EKEXVA350, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EKEXVA350 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5939 MB |
