Venstar T1070 User Manual

VENSTAR
FAN COIL
THERMOSTAT
FAN COIL
THERMOSTAT
T1070
NON-
PROGRAMMABLE
2 OR 4 PIPE
SYSTEMS
OWNER’S MANUAL
AND
INSTALLATION INSTRUCTIONS
Remote sensor ready
3 speed fan control
Self-prompting adjustment
Auto 2-pipe changeover
when used with ACC-SENFC
changeover sensor
Dry contact equipped
Backlit display
Works with most fan
coil systems - 24vac
Electric heat ready
Non-volatile memory
Dual setpoint with
adjustable deadband
Keypad lockout
Configurable display
Display F or C

Venstar T1070 Specifications

General

Display	Color touchscreen
Wi-Fi	Yes
Programmability	7-day programmable
Connectivity	Wi-Fi
Battery Backup	Yes (AA Batteries)
Weight	0.5 lbs
Power Source	24VAC or Battery
Temperature Range	40°F to 99°F
Features	Remote Access

Summary

Front Panel Components

Liquid Crystal Display

Displays current temperature, mode, and setpoint.

Mode Selection Button

Selects operational modes: Heat, Cool, Auto, Off.

Display Elements and Icons

Mode Status Indicators

Desired Setpoint Display

Selecting Operating Modes (4-Pipe)

Heating Only Mode Configuration

Cooling Only Mode Configuration

Automatic Heat/Cool Switching

Enables automatic switching between heating and cooling modes.

Selecting Operating Modes (2-Pipe)

2-Pipe Heating Only Mode

Selecting Operating Modes (2-Pipe Continued)

2-Pipe Cooling Only Mode

Selecting Operating Modes (2-Pipe with Sensor)

2-Pipe Auto Heat/Cool with Sensor

For systems with sensors or specific advanced configurations.

Basic Thermostat Operations

Setting Desired Temperature

Adjusts heating and cooling setpoints.

Fan Operation Control

Advanced Setup: Initial Configuration

Setpoint Display Mode Selection

Advanced Setup: System Type Configuration

Fan Coil System Type Selection

Chooses between 2-pipe and 4-pipe fan coil systems.

2-Pipe System Operation Modes

Defines specific operation modes for 2-pipe systems.

Fan Auto Mode Configuration

Advanced Setup: Fan and Display Settings

Fan Coil Type Configuration Options

1st Stage Deadband Adjustment

Setpoint Difference Control

Advanced Setup: Temperature and Sensor Settings

Sensor Operation Mode Configuration

Advanced Setup: Unoccupied Period Settings

Dry Contact Unoccupied Operation Mode

Configures unoccupied mode via dry contact.

Unoccupied Cooling Setpoint Adjustment

Unoccupied Heating Setpoint Adjustment

Advanced Setup Configuration Summary

Advanced Setups Configuration Table

Comprehensive table of setup steps, ranges, and defaults.

Advanced Features and Operation

Temperature Sensor Calibration Procedure

Deadband Operation Explained

Controls fan stages based on setpoints and deadbands.

Dry Contact Switch Functionality

Enables external devices to enforce unoccupied mode.

Factory Defaults Reset Procedure

Instructions to restore all settings to factory defaults.

Fan Operation Modes Explained

Heat/Cool Differential Setting

Duct Sensor Integration and Recognition

Single Setpoint Behavior Explanation

Keypad Lockout Functionality

Fan Coil Type Configuration Details

Configures G, G2, G3 outputs for specific fan speeds.

Sample Wiring Diagrams

2-Pipe System Wiring Diagram

Diagram for a 2-pipe system with H2O changeover sensor.

4-Pipe System Wiring Diagram

Diagram for a 4-pipe system with sensors and dry contact.

Duct Sensor Connection Diagram

Specific connection diagram for duct sensor to thermostat.

Auxiliary Input and Phasing Problems

Addresses phasing issues with multiple unit control.

Warranty Information

One-Year Product Warranty Terms