EKEQ EKEQDCBV3
Option kit for combination of Daikin condensing units
with field supplied air handling units
4P383212-1 - 2014.08
Installation and operation manual
79
Operation with 0–10 V capacity control: X-control
For X-control, a field-supplied controller needs to be connected to the
EKEQF control box. The field-supplied controller will geneate a 0–
10 V signal that will be used by the EKEQF control box for the
capacity control of the system.
The system needs a field-supplied controller with a tempeature
sensor. The temperature sensor can be used to control the following
temperatures:
Suction air temperature of the air handling unit
Room air temperature
Discharge air temperature of the air handling unit
Program the field-supplied controller so that it outputs a 0–10 V
signal based on the temperature difference between the actual
measured temperature and the target temperature.
The voltage output of the field-supplied controller is a linear function
with T:
It is possible that the T value can become higher than the chosen
T
max
value. The output of the field-supplied controller needs to be
10 V or 0 V depending on the T value (see graph for detail).
Below an example for cooling and heating operation is given.
Cooling operation
T
max
is selected at 3°C.
The target room temperature is 24°C
Heating operation
T
max
is selected at 3°C.
The target room temperature is 24°C
Operation with fixed T
e
/T
c
temperature control
The evaporating temperature (
T
e
)/condensing temperature (
T
c
) at
which the application has to operate can be set by code numbers as
listed below.
Operation with 0–10 V capacity control: W-control
For W-control, a field-supplied controller needs to be connected to
the EKEQF control box. The field-supplied controller will geneate a
0–10 V signal that will be used by the EKEQF control box for the
capacity control of the system.
The system needs a field-supplied controller with a tempeature
sensor. The temperature sensor can be used to control the following
temperatures:
Suction air temperature of the air handling unit
Room air temperature
1
Field-supplied controller
2
Control box EKEQF
3
Level 1 ~ 5 for capacity control
V
Controller voltage output to EKEQF
T
[actual measured temperature] – [target temperature]
When T=0, the target temperature is reached.
T
max
Maximum temperature variation as defined by installation
Recommended value for T
max
=[2°C~5°C].
Actual
measured
temperature
T value
Voltage
output field
controller
Cooling capacity
20°C
-4°C
0 V
Cooling capacity will
strongly decrease
21°C
-3°C
0 V
Cooling capacity will
strongly decrease
22.5°C
-1.5°C
2.5 V
Cooling capacity will
decrease
24°C
0°C
5 V
Unit will keep operating at
same capacity level
25.5°C
1.5°C
7.5 V
Cooling capacity will
increase
27°C
3°C
10 V
Cooling capacity will
strongly increase
28°C
4°C
10 V
Cooling capacity will
strongly increase
V
C
Actual
measured
temperature
T value
Voltage
output field
controller
Heating capacity
20°C
-4°C
0 V
Heating capacity will
strongly increase
21°C
-3°C
0 V
Heating capacity will
strongly increase
22.5°C
-1.5°C
2.5 V
Heating capacity will
increase
24°C
0°C
5 V
Unit will keep operating at
same capacity level
25.5°C
1.5°C
7.5 V
Heating capacity will
decrease
27°C
3°C
10 V
Heating capacity will
strongly decrease
28°C
4°C
10 V
Heating capacity will
strongly decrease
Mode No.
Code No.
Description of setting
(*)
(*) Depending on the operating temperature condition or on selection of the air
handling unit, operation or safety activation of the outdoor unit may take priority
and actual T
e
/T
c
will be different from the set T
e
/T
c
.
23(13)–1
01
T
e
= 3°C
02
T
e
= 4°C
03
T
e
= 5°C
04
T
e
= 6°C (factory setting)
05
T
e
= 7°C
06
T
e
= 8°C
07
T
e
= 9°C
08
T
e
= 10°C
23(13)–2
01
T
c
= 43°C
02
T
c
= 44°C
03
T
c
= 45°C
04
T
c
= 46°C (factory setting)
05
T
c
= 47°C
06
T
c
= 48°C
07
T
c
= 49°C
1
Field-supplied controller
2
Control box EKEQF
3
Level 1 ~ 5 for capacity control
Содержание ERQ Series
Страница 2: ......
Страница 16: ...Combination Table ESiEN09 06 A 6 General Information...
Страница 17: ...ESiEN09 06 A Specifications 7 1 Specifications 8 1 1 Outdoor Units 8...
Страница 33: ...ESiEN09 06 A Function general Function 23 1 2 Operation Mode...
Страница 58: ...Outline of Control ESiEN09 06 A 48 Function...
Страница 70: ...Wiring Diagram of Control Box ESiEN09 06 A 60 Control Box EKEQ CBV3 3 Wiring Diagram of Control Box 3 1 D box...
Страница 71: ...ESiEN09 06 A Wiring Diagram of Control Box Control Box EKEQ CBV3 61 3 2 F box...
Страница 109: ...Test Operation ESiEN09 06 A 100 Test Operation 1 2 2 Turn power on...