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© 01-2022 | Barcol-Air B.V. | T +31 (0)299 689 300 | www.barcol-air.nl | www.cera-systeem.nl | Changes w/o notice or obligation.
Sequence of operation of the CERA-1 one-zone system (standard model):
•
The CERA-1 unit has a supply and return duct with built-in air valve that regulate the air volume. The Flo-Cross
®
air fl ow measuring sensor
®
®
is built into the supply duct to measure the air fl ow.
•
A central AHU provides fresh air and ensures static pressure in the system. The distribution of air in the home will be determined by
the manual setting of the air diff users.
The central AHU unit must function 24/7.
•
In normal operation, the measured CO
2
value (living room) will be used to calculate the required air volume between a minimum air volume
(MinFlow) at 800 ppm and a maximum required air volume (MaxFlow) at 950 ppm. If the CO
2
value
≤
800 ppm, then the air volume will be equal
to the MinFlow.
•
By actuating the pulse switches (kitchen/bathroom) with LED feedback, the air volume in the home can be temporarily set to an increased or
reduced mode (night/sleep mode).
•
In increased mode, the required air volume will be maximum regardless of the measured CO2 value; after 60 minutes, the control sequence will
automatically return to the demand-driven CO
2
control.
•
In reduced mode (night-/sleep mode), the required air volume will be set to a fi xed value of 75% MaxFlow, regardless of the CO
2
reading. After
13 hours (night/sleep setting), the control sequence will automatically return to normal operation.
•
In the increased mode, the LED indicator on the transmitter will be on continuously and in the reduced mode it will fl ash slowly.
•
CERA-1 is also suitable for integration with the bathroom light; the CERA-1 unit will automatically switch to the increased mode after a 5-minute
delay. After the light in the bathroom is switched off , the increased mode will revert to the previous setting after a 30-minute delay.
•
Deviations on this control sequence of operation can be discussed; please contact our technical staff .
•
CERA-1 PLUS is available for monitoring CO
2
levels in multiple bedrooms. A CERA-S-TCO2 CO
2
sensor can be installed in a total of 4 bedrooms
and the living room. The highest CO
2
value measured will be used in the calculation of the desired air volume.
•
Optionally a humidity sensor can be used in the bathroom/bedroom, which ensures that the CERA unit automatically switches to elevated
increased mode the moment the humidity rises above a preset percentage. As standard for this type CERA-KLH100-HD-R5V sensor a percentage
of 70% is used.
TYPE CERA-1
CERA-1 | type NXOJOOB
Control sequence of operation (standard)
CO
2
-sensor
Type: CERA-S-TCO2
Hygrostat
Type: CERA-KLH100-HD-R5V