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Venstar T4950-IAQ User Manual

Venstar T4950-IAQ
57 pages
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DIGITAL THERMOSTAT
IAQ
Owner’s Manual and
Installation Instructions
Up to 4 Heat & 2 Cool Stages
With Air Patrol, Humidity Control,
& Light Activation
COMMERCIAL
T4950-IAQ

Table of Contents

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Venstar T4950-IAQ Specifications

General IconGeneral
BrandVenstar
ModelT4950-IAQ
CategoryThermostat
LanguageEnglish

Summary

Owner's Manual and Installation Instructions

Safety and Compliance Information

Important safety warnings, cautions, and regulatory compliance statements.

Thermostat Fundamentals

Glossary of Terms

Definitions of key thermostat features, modes, and operational terms.

Getting to Know Your Thermostat

Overview of the thermostat's physical components, buttons, and display features.

Thermostat Operation

Basic Usage and Mode Selection

Instructions for selecting modes, adjusting temperatures, and using the fan.

Sensor Data and Humidity Control

Viewing air quality, temperature sensor values, and managing humidity settings.

Scheduling and Programming

Setting the clock, day, and programming daily heating and cooling schedules.

Advanced Features and Systems

Air Patrol Air Quality System

Details on monitoring Indoor Air Quality (IAQ) and configuring Air Patrol.

VenNet Wireless Sensors

Procedures for pairing, managing, and using wireless remote sensors.

Setup Steps and Configuration

Initial Setup and Mode Selection

Configuring program modes, available operational modes, and basic display settings.

Display, Backlight, and Runtime Settings

Settings for backlight, runtime monitoring, and service filter/lamp/humidifier alerts.

System Runtime and Maintenance Alerts

Monitoring system operational hours and configuring maintenance reminders.

Setpoint Limits and Cycle Settings

Adjusting setpoint limits, security, cycles per hour, and compressor minimums.

Stage, Deadband, and Fan Purge Settings

Configuring heating/cooling stages, deadbands, and fan purge parameters.

Humidity, Light Activation, and ADR Settings

Configuring humidity control, light activation, and utility demand response programs.

IAQ Air Patrol and Skyport Configuration

Enabling IAQ monitoring features and configuring Skyport online services and API.

Special Functions and Maintenance

Button Locking and Holiday Mode

Locking thermostat buttons for security and using holiday energy-saving settings.

Emergency Heat and Sensor Calibration

Activating emergency heat and procedures for calibrating thermostat sensors.

Restoring Factory Default Settings

Resetting all thermostat settings and configurations to factory default values.

Installation and Technical Setup

Thermostat Installation and Wiring

Step-by-step guide for removing old thermostats, wiring, and installing the new unit.

Dip Switch Configuration and Diagrams

Setting dip switches and referring to wiring diagrams for system configuration.

Technician Setup and Diagnostics

Accessing the technician menu for firmware, diagnostics, and equipment testing.

Troubleshooting and Warranty

Troubleshooting Common Issues

Solutions for common thermostat problems, symptoms, causes, and remedies.

Advanced Setup Table Reference

A comprehensive table detailing all setup steps, ranges, and factory default settings.

Product Warranty Information

Details of the limited warranty, coverage, and exclusions for the thermostat.

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