CIAT BOX TRI Eco+ Guia Del Usuario página 30

No. Description
WINTER LS/HS threshold:
Defines the limits, based on Defines the limits based on
parameter 13, for switching
between low and high speed
22
during WINTER mode
SUMMER LS/HS threshold:
Defines the limits, based on
parameter 14, for switching
between low and high speed
23
during SUMMER mode
Cut-off on setpoint:
Used to shut off the fans or
keep them on when the
setpoint is reached.
24
Return air/Fresh air or mix:
Used to run the system with
fresh air or return air
26
Supply air speed override
time:
Used to set the fan delay
time
27
Number of power units
controlled:
Used to define the number
of slaves controlled by a
29 master controller 29
Unit V
The higher the threshold (near to 100%), the longer ventilation
will be maintained at low speed (LS).
Min. 0
Advantage: system very quiet, less electricity consumed, less
boiler kWs consumed.
Max. 100
Drawback: achieving the temperature setpoint will be very slow.
Default 50
In SUMMER mode, the threshold is set by default to 100% in
order to use only LS and thereby ensure that the flow of air
Increment 1
blown across the heat exchange coil does not cause condensate
droplets to form. droplets to form
Unit V
The lower the threshold (near to 0%), the longer ventilation will
Min. 0
be maintained at high speed (HS).
Max. 100
Advantage: swift building warm-up times.
Drawback: the system is similar to an On/Off control, "energy-
Default 100
wasting" system.
Increment Increment 1 1
Unit -
Min. - There are two operating modes:
- YES: the ventilation is turned off when the setpoint is reached.
Max. -
- NO: the ventilation will remain on (limits stratification in
Default Yes
WINTER mode, circulates air in SUMMER mode).
Increment Increment -
Unit -
Allows two operating modes when parameter 01 is not set to
tiME (in which case the operating mode will be depend on the
Min. -
time schedule):
- Air.in: 100% return air.
Max. -
- Air.out: fresh air or mix (depends on mechanical setting of
damper actuator supplied with the optional fresh air kit). p
Default Air In
When fresh air or mixed air is used, the optional fresh air kit
must be installed to protect the coil from frost.
Increment -
Unit mn
Parameter 04 is used to manually override the supply air speed
Min. 0 (LS or HS).
Parameter 27 is used to set the duration of the speed override.
Max. 180
When this time elapses, the automatic speed control (based on When this time elapses the a tomatic speed control (based on
Default 30
the ambient temperature/temperature setpoint and the clock)
turns back on without any manual intervention by the user.
Increment 5
Unit -
This parameter defines the number of slave units controlled by a
Min. 1
3-PH Eco+ BOX controller.
Max. Max 3 3
The number entered must correspond to the position of the
Default 1
switches (see page 7).
Increment -
Possible choices
g (
pp
13
), g
p )