Prestige IAQ Programmable Commercial Thermostat

Prestige® IAQ Programmable
Commercial Thermostat
FOR MULTISTAGE CONVENTIONAL
AND HEAT PUMP SYSTEMS
GUIDE SPECIFICATION
OVERVIEW
Prestige IAQ is a 7 day programmable thermostat with auto changeover that is designed for single stage and multistage control of
conventional and heat pump equipment such as rooftop units and split systems. Prestige IAQ consists of a thermostat and
equipment interface module. The thermostat and equipment interface module communicate using Honeywell's proprietary
RedLINK wireless technology. The thermostat controls up to 3 heat / 4 cool conventional systems and up to 4 heat / 2 cool heat
pump systems. The thermostat controls humidification, dehumidification, ventilation, an economizer and a lighting panel.
Universal sensor inputs are used with remote indoor air temperature sensor(s), an outdoor air temperature sensor, a discharge
air temperature sensor, a return air temperature sensor, an occupancy sensor for remote setback and dry contact devices for
displaying alerts.
The thermostat is equipped with a 16:9 touchscreen TFT color display (WQVGA - 480 X 272 pixels).
Provides a USB port to upload Dealer Information, Custom Reminders, Custom Event Schedules, Holiday Schedule and Software Updates and to download Data Logs.
Provides remote access to the thermostat when used with the RedLINK internet gateway.
Provides control using optional remote temperature and humidity sensors.
Thermostat integrates with the Niagara-AX framework.
QUALITY ASSURANCE
The thermostat shall be manufactured within a certified ISO-9001 facility and is FCC Compliant with part 15 of the FCC rules.
SEQUENCE OF OPERATION
The heating and cooling setpoints shall be individually adjustable in the program schedule. The thermostat shall have a minimum
deadband of 2 F (no mechanical heating or cooling shall operate within this deadband). Space temperature deviation above the
cooling setpoint or below the heating setpoint shall generate a demand signal to control the system as follows:
Heating
The thermostat shall control the heating 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 heating equipment when space temperature falls below the heating setpoint.
The thermostat shall have a compressor outdoor lockout and backup heat outdoor lockout to turn off the heat pump or backup
heat based on outdoor temperature. When the backup heat differential is set to Comfort, the control algorithm will use backup
heat as needed to maintain the setpoint within +/- 1 F. When the backup heat differential is set to 2 F or higher and the backup
heat upstage timer is turned on, the indoor temperature must drop to the backup heat differential setting or the backup heat
upstage timer must expire before turning on the backup heat.
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PRESTIGE® IAQ PROGRAMMABLE COMMERCIAL THERMOSTAT
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 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.
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PRESTIGE® IAQ PROGRAMMABLE COMMERCIAL THERMOSTAT
Overrides
Temporary Override: After touching the OVERRIDE button from the Home Screen or adjusting the temperature setpoint, the
thermostat shall use a pre-set occupied temperature. The new temperature will be maintained for 1 hour and can be adjusted up
to the maximum override duration set by the installer.
Holiday Override: Selecting HOLIDAY MODE from the Menu shall allow the user to set setback temperatures from the current day
to a specified date.
Holiday Schedule: Selecting HOLIDAY / EVENT SCHEDULER from the Menu shall allow the user to set US or Canadian
Holidays and Custom Events:
US or Canadian Holidays: The thermostat shall allow the user to customize temperature settings to be maintained on specified national holidays. The thermostat resumes normal scheduling between selected holidays.
Custom Events: The thermostat shall allow the user to customize temperature settings to be maintained during a specific
event. Up to 25 Custom Events can be setup for a specific date or a day in a month. The thermostat resumes normal scheduling after the event.
Initiate Occupancy: The thermostat shall keep the temperature at an energy saving level until the user touches “Press to start
occupancy” on the home screen. The thermostat returns to an energy saving level after the hold until time expires or the
Occupied period ends.
Remote Setback using an Occupancy Sensor: During an Occupied Period, the thermostat shall override the program schedule
and follow the desired standby settings when the occupancy sensor detects the room is unoccupied. The thermostat shall
resume the program schedule when the occupancy sensor detects the room is occupied.
The thermostat provides three levels of keypad lockout to prevent changes to the thermostat: Unlocked, Partial Lockout and Full
Lockout.
The thermostat provides heating and cooling temperature range stops to limit temperature setpoint adjustments.
Reminders and Alarms
The thermostat shall provide an alert on the display when the HVAC filter requires replacement or cleaning.
The thermostat shall provide an alert on the display when maintenance is required on the humidification, dehumidification and
ventilation equipment.
The thermostat shall provide an alert on the display when the HVAC system requires service based on Delta T.
The thermostat shall provide an alert on the display when a problem is detected by a dry contact device connected to the
universal sensor inputs.
The thermostat shall provide an alert on the display when service is required based on the Custom Reminders entered by the
installer. Custom Reminders are displayed based on date or when the outdoor temperature exceeds a level selected by the
installer.
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68-3106—01
PRESTIGE® IAQ PROGRAMMABLE COMMERCIAL THERMOSTAT
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark
© 2013 Honeywell International Inc.
68-3106—01 M.S.
10-13
Printed in United States
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