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Venstar T2900 User Manual

Venstar T2900
113 pages
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Venstar Inc. 04/08
Meets Commercial California Title 24
Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
HEAT
COOL
HEAT
PUMP
Digital
Thermostat
PROGRAMMABLE
up to 3-heat
& 2-cool
7-DAY
Digital
Thermostat
PROGRAMMABLE
up to 3-heat
& 2-cool
7-DAY
THERMOSTAT
T2900
commercial
Control up to 3 Heat &
2 Cool Stages
3 Configurable Outputs
Timers & Deadbands
Backlit Display & Button
Legends
Aux Heat Indicator
Dry Contact Equipped
Accepts Comfort Call
Phone Control Accessory
Adjustable 2nd & 3rd Stage
Outdoor Sensor Ready with
High/Low Readouts for the Day
Set Point Limiting
Accepts EZ Programmer
Economizer Control
Preoccupancy Fan Purge
Remote Averaging
Programmable Output
Light Activation Equipped
Accepts Optional Humidity Module:
Controls Humidification,
Dehumidification and Reheat
Accepts Optional IR Remote Control
OWNERS
MANUAL
OWNERS
MANUAL

Table of Contents

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Venstar T2900 Specifications

General IconGeneral
ModelT2900
DisplayLCD
Hold FunctionYes
Filter Change AlertYes
Power Source24 VAC or Battery
Backup BatteryYes

Summary

Section 1 Quick Start

Setting the Clock and Day

Configure the thermostat's clock and day settings for accurate operation.

Selecting the Heat or Cool Mode

Choose between Heating, Cooling, Auto, or Off modes.

Section 3 Setting the Clock and Day

Section 4 Basic Operation

Programming for Auto or Program Operation

Configure the thermostat for manual, auto-changeover, or programmable modes.

Selecting the Proper Operating Mode

Understand and select between Heating, Cooling, Auto, and Off modes.

Selecting Your Desired Temperature

Adjusting the heat and cool setpoints for different modes.

Section 6 Programming the Daily Schedule

Programming a Daily Schedule

Set up time periods and temperature setpoints for each day.

Overriding the Daily Schedule

Temporarily interrupt or modify the programmed schedule.

Section 7 Programming the Fan Operation

Section 9 Humidification

Section 10 Dehumidification

Section 12 Electric Heat and Heat Pump Operation

Viewing the Heat Pump and Reversing Valve Jumper Setting

Check thermostat settings for heat pump or reversing valve operation.

Viewing the Electric Heat Jumper Setting

Check thermostat settings for electric heat operation.

Using Emergency Heat

Activate emergency heat feature on heat pump systems.

Section 13 Timers and Deadbands

Adjusting the Heat/Cool Differential

Set minimum temperature difference between heat and cool setpoints.

Adjusting the Cycles Per Hour

Limit the number of times the HVAC unit can energize per hour.

Adjusting the Deadband

Set temperature differentials for stage transitions in multi-stage systems.

Adjusting the Minutes of Run-Time Before the Next Stage

Configure minimum run-time for a stage before the next stage activates.

Section 14 Using the Programmable Output

Section 15 Programming Remote Sensor Operation

Section 16 Programming the Dry Contact

Section 17 Light Activated Operation

Section 18 Energy Save Operation

How to Use the Energy Save Feature

Utilize the Smart Recovery feature for energy savings.

Section 20 Programming Holiday Mode

Section 21 Configuring the MISC Outputs

Configuring the Jumpers

Set MISC output functions using jumpers on the thermostat.

Explanation of Jumper Settings

Detailed explanation of each MISC jumper setting and its function.

Section 22 Factory Defaults, Calibration, and Sensors

Resetting the Thermostat to the Factory Default Settings

Restore thermostat to original factory settings.

Calibrating the Temperature and Humidity Sensors

Procedure for calibrating internal and remote sensors.

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