User Guide

REDLINK™ VISIONPRO® PROGRAMMABLE LIGHT COMMERCIAL THERMOSTAT
68-3105—02 2
Cooling
The thermostat shall control the cooling output based on the demand signal communicated from the thermostat program,
taking into account both space temperature deviation (proportional gain) and the duration of that temperature deviation
(integral gain).
The thermostat shall energize cooling equipment when space temperature exceeds the cooling setpoint.
(Optional Remote Equipment) A solid state enthalpy changeover control shall determine the capability of the outdoor air to
provide free cooling (optional). The system shall operate as follows:
Free cooling available from Outdoor Air: On a call for cooling, the system shall enable the economizer to provide free cooling.
If this does not meet the space demand, the system shall call for mechanical cooling to satisfy the programmed setpoint.
Free Cooling Not Available from Outdoor Air: On a call for cooling, the system shall hold the economizer to minimum position
and cooling shall be energized to satisfy the programmed setpoint.
Dehumidification
The thermostat shall control to the desired dehumidification level using one of the methods below:
Control dehumidification using a dehumidifier.
Control dehumidification by over cooling and lowering the fan speed.
Control dehumidification using reheat.
Economizer Interface
The auxiliary output of the thermostat or equipment interface module (A-L/A terminal) shall be connected to the economizer's
power circuit or the Occupied/Unoccupied signal terminal.
Occupied Period: The auxiliary output will provide 24 VAC, allowing the economizer to operate normally and be available for
free cooling if outdoor conditions permit.
Unoccupied Periods: The auxiliary output will cease, defeating either economizer operation or the minimum position.
Heating and Cooling Schedule
Initiation of heating setback or cooling setup for each of 7 days shall be provided by a programmed time schedule manually
entered into the thermostat. The thermostat shall provide two occupied and two unoccupied periods per day. When all or a
portion of a manually programmed schedule is unavailable, the thermostat shall control to the default program schedule.
The thermostat shall provide adjustable recovery ramps for heating and cooling. The thermostat will begin heating or cooling
recovery early to ensure that the temperature is reached at the scheduled time.
The thermostat requires the current time to be set to follow the user's desired program schedule. The thermostat will
automatically update the current time for Day Light Saving time if this option is turned on.
Fan Operation
Fan Operation shall be selectable as follows:
On: Fan is always on.
Auto: Fan runs only when the heating or cooling system is on.
Follow Schedule: Fan controlled by the program schedule. The thermostat will turn on the fan 1-3 hours before the Occupied
period when the Pre-Occupancy Purge setting is turned on.
Power Interruption
On loss of power, the thermostat shall maintain programmed times and temperatures for 10 years.
Current time and date shall be maintained for a minimum of 4 years assuming 2 weeks of power outages each year.