
Application manual
Air quality multisensor and regulator EK-ES2-TP
Release 1.0 - Updated: 14/02/2020
Application Manual
© EKINEX S.p.A. - All rights reserved
Page 73
Parameter name
Conditions
Values
Time interval
Time scheduled ventilation =
enabled
2 min
(other values in the 30 s … 5 min range)
Object name
Conditions
Dim.
Flags
DPT
Comm.
Obj. No.
Ventilation bit x - Switch
Ventilation control
Settings
Communication object
dimension = 1 bit value
1 bit
CR-T-
[1.001] switch
92, 93,
94, 95
x = 1, 2, 3, 4
Ventilation - Counter
Ventilation control
Settings
Communication object
dimension = 1 byte unsigned
value
1 byte
CR-T-
[5.010] counter
pulses (0…255)
92
Ventilation - Percentage
Ventilation control
Settings
Communication object
dimension = 1 byte percentage
or 1 byte percentage (continuous
speed)
1 byte
CR-T-
[5.001] percentage
92
Ventilation - Lock
Ventilation control
Settings
Ventilation lock = enabled
1 bit
C-W--
[1.003] enable
96
Ventilation - Disable
Ventilation control
Settings
Disable ventilation from bus =
yes
1 bit
C-W--
[1.003] enable
97
Note 1
: if the ventilation function is enabled for both equivalent CO
2
and TVOC parameters, it will be turned
on according to the condition foreseen when the most restrictive threshold is exceeded.
In order to better clarify this behaviour, please consider the following example, where the communication object
type is
1 byte percentage
:
•
the parameter Value < Threshold 1 is set at 0% (ventilation off);
•
the Threshold 1 < Value <Threshold 2 parameter is set at 20%;
•
the Threshold 2 < Value <Threshold 3 parameter is set at 50%;
•
the parameter Value > Threshold 3 is set to 100% (ventilation at maximum speed);
•
the CO
2
control has threshold 1 = 400 ppm, threshold 2 = 1000 ppm, threshold 3 = 1200 ppm;
•
the TVOC control has Threshold 1 = 500 ppb, Threshold 2 = 2000 ppb, Threshold 3 = 3000 ppb.
If the multisensor detects a value of 800 ppm for equivalent CO
2
concentration (therefore it lies between
Threshold 1 and Threshold 2), while the measured TVOC value is 2500 ppb (that is, between Threshold 2 and
Threshold 3), then the ventilation will start at 50%, because the most restrictive condition applies for TVOC
with respect to equivalent CO
2
concentration.
Note 2
: The
Time scheduled ventilation
function is designed to allow a CO
2
and / or temperature sensor reading
the actual value of the data after a configured interval of plant downtime. The purpose is to avoid reading a