Cumberland EXPERT-50, Руководство пользователя

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Expert-50 rev.10
The Expert-50 controls up to 15 on-off fan stages. These stages operate
in a sequence to increase the level of ventilation as the room tempera-
ture rises. Each stage can also activate two variable outputs and operate
a combination of relays in timer mode for cooling (note that stage 1 can
only operate variable outputs). The user defines a start temperature for
each stage. When the room temperature reaches this value, the stage is
activated. A differential common to all stages is used to determine
when the stage is deactivated (see User Setup to adjust this differential).
Fan stage outputs can also be configured to operate in timer mode.The
following diagram shows how fan stages operate.
Start temperatures are defined with respect to the set point and with
respect to each other. This means that when one of these values is
adjusted, all the consecutive values are adjusted by the same amount.
For example, if the set point is increased by 1°F, the start temperatures
for all fan stages will be increased by the same amount. The minimum
temperature difference between two start temperatures is 0.5°F. Note
that stop temperatures cannot overlap the previous stage's start tem-
perature even if this means the differential will be smaller than the
prescribed value.
FAN SETTINGS
Operation of Fan Stages
Set Point
Start Temp.
Stage S
Start Temp.
Stage S+1
Stage S
Stage S+1
Differential
Differential
Stage S fans
turn on
Stage S fans
turn off
Stage S+1
fans turn on
Stage S+1
fans
turn off
T°
Ventilation
Level