27
Fahrenheit or Celsius (Setup Step 53)
This feature allows the thermostat to display temperature in Fahrenheit or Celsius.
Auxiliary Output (Setup Steps 54-55)
The thermostat is equipped with a programmable auxiliary output. This output can be
configured to be controlled from a variety of sources.
Aux Output Polarity (Setup Step 54)
Specifies if the Auxiliary output will be Open (Normally Open) or Closed (Normally
Closed).
Aux Output (Setup Step 55)
Specifies which source will control the Aux output.
CHOICES ARE:
Air Patrol -
used to control external device when air quality degrades to preset level.
Econ -
used to control an economizer. Aux output will be active when schedule is in
occupied or fan purge is active
Max Override Hours
(Setup Step 56)
Specifies how long the thermostat will allow occupied setpoints outside of
classroom hours. (0-6 hours).
Warmup Period
(Setup Step 57)
This step specifies which mode (heat, cool, heat and cool or none) will be allowed to
turn on before Occupied start time to precondition the air in the classroom.
Warmup Period Start Time
(Setup Step 58)
This step specifies how long before the Occupied start time that the classroom will
be preconditioned. (0 - 4 hours)
Setup Steps
Press the SETUP button, then press MODE repeatedly until the
desired setup step appears. Use the WARMER or COOLER buttons
to make selection. Press MODE to advance to the next step.
Press/hold MODE to go backwards to prior steps. Press SETUP to
leave the setup screens.
WARMER
COOLER
MODE
SETUP
Содержание T4950SCH-IAQ
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