1
QM 1329.rev.00
•
When room temperature < Set Point, the stage 1 fans run at minimum
speed according to the minimum ventilation cycle.
•
At Set Point: the stage 1 fans stop operating according to the minimum
ventilation cycle and increase in speed as the room temperature rises.
•
At Set Point + Bandwidth 1: the stage 1 fans reach full speed.
•
At Stage 2 Starting Temp: the stage 2 fans start running.
If the room temperature falls:
•
At Stage 2 Starting Temp - 1.5
o
F: the stage 2 fans return to a stop.
•
At Set Point + Bandwidth 1: Stage 1 fans start decreasing in speed
as the temperature decreases.
•
At Set Point: the Stage 1 fans reach minimum speed.
If room temperature rises:
VENTILATION SETTINGS
The ST 5110 controls one stage of variable-speed fans (Stage 1) and one
optional stage of constant-speed fans (Stage 2).
C
OOLING OPERATION
Ventilation
Level
Room
Temp.
Temperature
Set Point
1.5
o
F
STAGE 1
STAGE 2
Bandwidth
Stage 1
Minimum
Ventilation
Cycle
Start Temp
Stage 2
