Daikin EKEXVA300 handleiding
Handleiding
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11 About the system
Installation and operation manual
14
EKEACBVE + EKEXVA50~500
Option kit for combination of Daikin outdoor units with field-
supplied air handling units
4P724517-1 – 2023.06
When is a remote controller needed?
In general, for EKEA a remote controller does not need to be
connected during normal operation. During configuration and
servicing, it is required to connect a remote controller.
There are two exceptions for which a remote controller is needed
during normal operation:
▪ In case of Z control, when the C1C2 signal is not used to set the
setpoint.
▪ In case of EKEAs in remote controller group control (i.e. when
multiple EKEAs are connected to one remote controller):
▪ Master-slave configuration (i.e. multiple EKEAs for a single air
handling unit) ⇒ interlaced heat exchanger
▪ Multiple air handling units with one EKEA per air handling unit
In cases where a remote controller is not required during normal
operation, it may be decided to disconnect the remote controller.
Keep the following items in mind:
▪ To disconnect the remote controller, follow the steps explained in
"16.1To configure the control box"[427].
▪ It is advised to use the following optional input signals in this
situation:
▪ T1T2: To start or stop EKEA
▪ T3T4: To set cooling/heating (if EKEA is the cooling/heating
master of the system)
Remote controller group control
Follow the instructions from the manual of the remote controller to
use remote controller group control on EKEA. For normal indoor
units, the unit number can be verified by checking fan operation
visually. For EKEA, this can be done by checking the fan instruction
signal K3K4.
11.5 Selection of the expansion valve
kit
Use the following table to select the expansion valve based on the
cooling and the heating capacity of the AHU heat exchanger:
EKEXVA
capacity
class
Allowed heat exchanger capacity (kW)
Cooling
(a)
Heating
(b)
Min. Max. Min. Max.
50 5 6.2 5.6 7
63 6.3 7.8 7.1 8.8
80 7.9 9.9 8.9 11.1
100 10 12.3 11.2 13.8
125 12.4 15.4 13.9 17.3
140 15.5 17.6 17.4 19.8
200 17.7 24.6 19.9 27.7
250 24.7 30.8 27.8 34.7
300 30.9 36.1 34.8 41.7
350 36.2 42.8 41.8 48.6
400 42.9 47.1 48.7 55
450 47.2 54.2 55.1 62
500 54.3 61.6 62.1 69.3
(a)
Cooling:
• Saturated suction temperature (SST) = 6°C
• Air temperature = 27°CDB/19°CWB
• Superheat (SH) = 5K
(b)
Heating:
• Saturated suction temperature (SST) = 46°C
• Air temperature = 20°CDB
• Subcool (SC) = 3K
NOTICE
▪ The expansion valve (electronic type) is controlled by
the thermistors that are added in the refrigerant circuit.
Each expansion valve can control a range of air
handling unit sizes.
▪ Extraneous substances (including mineral oils or
moisture) must be prevented from getting mixed into
the system.
▪ SST: Saturated suction temperature at exit of air
handling unit.
11.6 Outdoor unit
11.6.1 Possible outdoor units
Outdoor unit Layout
Pair Multi Mix
ERQ (HP) ● — —
VRVHP ● ● ●
VRVHR N/A ●
(a)
●
(a)
• Only possible in case of Z and Z' control.
• VRV HR is not possible with master-slave configuration.
● Allowed
— Not allowed
N/A Not applicable
HP Heat pump
HR Heat recovery
11.6.2 ERQ outdoor units
The control box can only be connected to an ERQ outdoor unit in
pair application. Only one expansion valve kit EKEXVA63~250 can
be used per control box and per air handling unit.
ERQ EKEXVA
100 63~125
125 63~140
140 80~140
200 100~250
250 125~250
11.6.3 VRV outdoor units
The control box can be connected to some types of VRV outdoor
units (see the Engineering Data Book for outdoor units that are in
scope) with a maximum number of 3 connectable control boxes to
one outdoor system. A single control box can only be combined with
one expansion valve kit.
11.7 Air handling unit
NOTICE
▪ For R410A: The design pressure of the connected air
handling unit MUST be minimum 4.0MPa (40bar).
▪ For R32: The design pressure of the connected air
handling unit MUST be minimum 4.17MPa (41.7bar).
NOTICE
The connected air handling unit MUST comply with the
requirements of the International Standard
IEC60335-2-40:2022.
Bekijk gratis de handleiding van Daikin EKEXVA300, 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 | EKEXVA300 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5715 MB |
