W-, X-, Y-, Z-Control
ESiEN09-06 A
56
Control Box EKEQ - CBV3
2.1.1 Different steps
The EKEQF control box will interpret the 0-10 V signal according to 5 steps. The correlation
between the voltage output and the system capacity is shown in the table below.
2.1.2 System capacity
The system response to the 0-10 V output from the field-supplied controller is the same in
cooling and heating operation.
The field-supplied controller will output a 0-10 V signal based on T.
0 V is interpreted as no capacity.
10 V is interpreted as high capacity both in cooling AND heating operation.
Example:
A T of 4°C in cooling means that the field-supplied controller needs to output 10 V, so that the
cooling capacity will be 100%.
The same T of 4°C in heating operation means that the field-supplied controller needs to
output 0 V, so that the heating capacity will be 0%.
The response of the field-supplied controller must therefore be inverted for cooling or heating
operation.
Step
Voltage field
controller
(*)
System capacity
(†)
T
e
during cooling
operation
T
c
during heating
operation
1
0,8 V
0% (OFF)
-
-
2
2,5 V
40%
13,5°C
31°C
3
5 V
60%
11°C
36°C
4
7,5 V
80%
8,5°C
41°C
5
9,2 V
100%
6°C
46°C
(*)
Voltages shown are the center points of each step range.
(†)
The capacities mentioned in the table above are not exact. The compressor frequency can vary and will have
an impact on the system capacity.
% capacity
Input VDC
(C6 - C5)
Target
temperature
Actual measured
temperture
T
Required system
response
Cooling operation
24°C
28°C
+4°C
High capacity
(10 V)
Heating operation
24°C
28°C
+4°C
No capacity
(0 V)
Summary of Contents for ERQ Series
Page 2: ......
Page 16: ...Combination Table ESiEN09 06 A 6 General Information...
Page 17: ...ESiEN09 06 A Specifications 7 1 Specifications 8 1 1 Outdoor Units 8...
Page 33: ...ESiEN09 06 A Function general Function 23 1 2 Operation Mode...
Page 58: ...Outline of Control ESiEN09 06 A 48 Function...
Page 71: ...ESiEN09 06 A Wiring Diagram of Control Box Control Box EKEQ CBV3 61 3 2 F box...
Page 109: ...Test Operation ESiEN09 06 A 100 Test Operation 1 2 2 Turn power on...