Emerson 700 Electronic Non-Programmable Single Stage Thermostat User Manual

Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Emerson 700 Electronic Non-Programmable Single Stage Thermostat. This device is designed to provide accurate temperature control for single-stage heating and cooling systems. Please read these instructions carefully before installation and use to ensure proper function and safety.

Safety Information

• Always turn off power to the heating/cooling system at the main fuse or circuit breaker panel before installing or servicing the thermostat.
• This thermostat is designed for 24-Volt and millivolt systems only. Do not use on line voltage applications (120/240 VAC).
• Installation should be performed by a qualified technician if you are unfamiliar with electrical wiring.
• Ensure all wiring connections are secure to prevent electrical shorts or fire hazards.

Setup and Installation

1. Removing the Old Thermostat

1. Turn off the power to your heating and cooling system at the main fuse or circuit breaker panel.
2. Remove the cover of your old thermostat.
3. Take a picture of the wiring connections for reference. Label each wire with the terminal designation (e.g., R, W, Y, G, C).
4. Disconnect the wires and remove the old thermostat base from the wall.

2. Mounting the New Thermostat

1. Separate the front cover from the thermostat base.
2. Position the thermostat base on the wall where the old thermostat was located. Use the provided screws and wall anchors to secure it. Ensure the base is level for aesthetic purposes.

3. Wiring

Connect the wires from your system to the corresponding terminals on the Emerson 700 thermostat base. Refer to the picture taken during removal of the old thermostat. This thermostat is designed for single-stage systems. Typical wiring includes:

• R: 24 VAC power (often red wire)
• W: Heat call (often white wire)
• Y: Cool call (often yellow wire)
• G: Fan call (often green wire)
• C: Common wire (optional, but recommended for consistent power; often blue or black wire)

After connecting the wires, carefully push any excess wire back into the wall opening. Attach the front cover of the thermostat to the base.

4. Initial Power-Up

Restore power to your heating and cooling system at the main fuse or circuit breaker panel. The thermostat display should illuminate and show the current room temperature.

Operating Instructions

This image displays the main interface of the Emerson 700 thermostat, featuring a digital screen that shows the current and set temperatures. To the right of the screen are up and down arrow buttons for temperature adjustment. Below the screen, there are two toggle switches: one for fan operation (ON/AUTO) and another for system mode (COOL/OFF/HEAT).

1. Understanding the Display

The digital display shows the current room temperature and the set temperature. Indicators for system status (e.g., heat icon, cool icon) may also appear.

2. Adjusting Temperature

Use the Up (▲) and Down (▼) arrow buttons located on the right side of the thermostat to increase or decrease the desired set temperature.

3. Fan Operation

The FAN switch controls the system's fan:

• AUTO: The fan runs only when the heating or cooling system is actively operating. This is the most common and energy-efficient setting.
• ON: The fan runs continuously, regardless of whether the heating or cooling system is active.

4. System Mode Selection

The SYSTEM switch selects the operating mode:

• HEAT: The thermostat will activate the heating system when the room temperature falls below the set temperature.
• OFF: Both heating and cooling systems are turned off. The fan can still be operated manually if set to ON.
• COOL: The thermostat will activate the cooling system when the room temperature rises above the set temperature.

Maintenance

Cleaning the Thermostat

To clean the thermostat, gently wipe the exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure no moisture enters the internal components.

Battery Information

The Emerson 700 thermostat is typically powered by your HVAC system's 24-volt circuit and does not require batteries for operation. If your specific installation requires batteries for backup or display, consult your installer or the specific wiring diagram provided with your unit.

Troubleshooting

If you experience issues with your thermostat, review the following common problems and solutions:

• No Display or Blank Screen:
  • Check that the power to your HVAC system is turned on at the main fuse or circuit breaker.
  • Verify all wiring connections are secure at the thermostat and the HVAC system.
• System Not Responding (No Heating/Cooling):
  • Ensure the SYSTEM switch is set to HEAT or COOL, not OFF.
  • Confirm the set temperature is appropriately above (for cooling) or below (for heating) the current room temperature.
  • Check the circuit breaker for your HVAC system.
• Inaccurate Temperature Reading:
  • Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources (e.g., lamps, appliances) that could affect its sensor.
  • The thermostat should be mounted on an interior wall, away from exterior walls or windows.
• Fan Runs Continuously:
  • Check that the FAN switch is set to AUTO, not ON.

If problems persist after attempting these solutions, it is recommended to contact a qualified HVAC service technician for assistance.

Specifications

Warranty and Support

For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Emerson Climate Technologies website. Keep your purchase receipt as proof of purchase for any warranty claims.