Daikin EKEXVA350 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
4P724517-1B – 2024.03
NOTICE
When the AHU fan instruction signal is activated, the air
handling unit and fan must operate.
K9K10
To use the K9K10 output signal, see 15(25)-15 in "16.2 Field
settings"[431].
11.4 Remote controller for EKEA
Compatible remote controller
BRC1H or newer.
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
NOTICE
In case of X, Y, W, Z' control, changing the setpoint of the
remote controller, will have no effect on the capacity
control.
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"[429].
▪ 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 13.1 11.2 14.7
125 13.2 15.4 14.8 17.3
EKEXVA
capacity
class
Allowed heat exchanger capacity (kW)
Cooling
(a)
Heating
(b)
Min. Max. Min. Max.
140 15.5 21.0 17.4 23.6
200 21.1 24.6 23.7 27.7
250 24.7 30.8 27.8 34.7
300 30.9 36.9 34.8 41.5
350 37.0 44.0 41.6 49.5
400 44.1 49.5 49.6 55.7
450 49.6 55.4 55.8 62.4
500 55.5 61.6 62.5 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 AHU 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 AHU layout. 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
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 |
