1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Peco TA168-100 Non-Programmable Fan Coil Thermostat. This device is designed for controlling fan coil units in various HVAC systems, including electric, gas, and PTAC systems. It supports multi-speed fan switching and offers auto-heat-cool-off functionality with 2/4 pipe configuration capabilities.
Please read this manual thoroughly before installation and operation to ensure proper function and safety.
2. Safety Information
WARNING: This product operates on line voltage. Installation and servicing should only be performed by a qualified electrician or HVAC technician. Disconnect power at the main service panel before installing or servicing this thermostat to prevent electrical shock or equipment damage.
- Ensure all wiring complies with local electrical codes and ordinances.
- Do not install in locations exposed to direct sunlight, drafts, or extreme temperatures.
- This device is intended for indoor use only.
3. Key Features
- Non-programmable operation for straightforward temperature control.
- Compatible with electric, gas, and PTAC systems.
- Multi-speed fan switching (Off-Hi-Med-Low).
- Operating modes: Auto-Heat-Cool-Off.
- Supports 2-pipe and 4-pipe fan coil configurations.
- Automatic Summer/Winter changeover capability.
- Digital display with backlight.
- Local or remote sensing options.
4. Setup and Installation
4.1 Package Contents
Verify that your package contains the following items:
- Peco TA168-100 Thermostat Unit
- Mounting Screws
- Installation Guide (this manual)
4.2 Mounting Location
Select a central location on an interior wall, approximately 5 feet (1.5 meters) above the floor. Avoid areas with:
- Direct sunlight
- Drafts from windows or doors
- Heat sources (e.g., lamps, appliances)
- Concealed pipes or ducts
4.3 Wiring Instructions
IMPORTANT: Disconnect power to the HVAC system at the circuit breaker before proceeding with wiring.
- Carefully remove the front cover of the thermostat to expose the wiring terminals.
- Connect the line voltage wires from your HVAC system to the appropriate terminals on the thermostat. Refer to the wiring diagram provided with your specific fan coil unit for correct connections.
- Ensure all connections are secure and insulated.
- If using remote sensing, connect the remote sensor wires to the designated terminals.
- Mount the thermostat base to the wall using the provided screws.
- Reattach the front cover of the thermostat.
Figure 1: Front view of the Peco TA168-100 Non-Programmable Fan Coil Thermostat. The image shows the digital display indicating "68.4 HEAT", up/down arrow buttons, a 'MODE' button, and a fan speed slider switch labeled 'OFF HI MED LO FAN' at the bottom. The Peco logo is visible on the lower left.
5. Operating Instructions
5.1 Controls Overview
- Digital Display: Shows current temperature and operating mode.
- Up/Down Arrows: Adjust the desired setpoint temperature.
- MODE Button: Cycles through operating modes (Auto, Heat, Cool, Off).
- Fan Speed Slider: Selects fan operation (Off, Hi, Med, Low).
5.2 Setting the Temperature
Use the Up or Down arrow buttons to increase or decrease the desired temperature setpoint. The display will show the new setpoint briefly before returning to the current room temperature.
5.3 Selecting Operating Mode
Press the MODE button to cycle through the available operating modes:
- OFF: Turns off the heating and cooling system.
- HEAT: Activates the heating system when the room temperature falls below the setpoint.
- COOL: Activates the cooling system when the room temperature rises above the setpoint.
- AUTO: Automatically switches between heating and cooling to maintain the setpoint.
5.4 Adjusting Fan Speed
Use the fan speed slider switch located at the bottom of the thermostat to select the desired fan operation:
- OFF: Fan is off.
- LO: Low fan speed.
- MED: Medium fan speed.
- HI: High fan speed.
6. Maintenance
The Peco TA168-100 thermostat requires minimal maintenance. Follow these guidelines to ensure optimal performance:
- Cleaning: Wipe the thermostat's exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Airflow: Ensure that the vents on the thermostat casing are not obstructed, as this can affect temperature sensing accuracy.
- Annual Check: It is recommended to have your HVAC system, including the thermostat, inspected annually by a qualified technician.
7. Troubleshooting
If you experience issues with your thermostat, refer to the following table:
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat display is blank. | No power to the thermostat. | Check the circuit breaker for your HVAC system. Ensure wiring connections are secure. |
| System not responding to setpoint changes. | Incorrect mode selected; wiring issue; HVAC system malfunction. | Verify the thermostat is in HEAT or COOL mode. Check wiring. Consult an HVAC technician if the system itself is not operating. |
| Fan not operating at selected speed. | Fan slider switch set to OFF; wiring issue; fan motor malfunction. | Ensure the fan slider is set to LO, MED, or HI. Check fan wiring. |
| Inaccurate temperature reading. | Thermostat location affected by drafts or heat sources; obstructed vents. | Relocate thermostat if possible. Clear any obstructions around the thermostat. |
If problems persist after attempting these solutions, contact a qualified HVAC technician for assistance.
8. Specifications
| Model | TA168-100 |
| Brand | Peco |
| Type | Non-Programmable Fan Coil Thermostat |
| Power Source | Line Voltage (Electric) |
| Compatibility | Electric, Gas, PTAC systems; 2/4 pipe configurations |
| Fan Control | Multi-speed (Off, Low, Med, High) |
| Operating Modes | Auto, Heat, Cool, Off |
| Display | Digital with Backlight |
| Control Type | Push Button, Slider Switch |
| Dimensions (H x W x D) | Approximately 4.76 x 2.99 x 1.25 inches |
| Weight | Approximately 4.8 ounces (0.3 lbs) |
| Color | White |
| UPC | 879978000141 |
9. Warranty Information
For specific warranty details regarding your Peco TA168-100 thermostat, please refer to the warranty card included with your product or visit the official Peco website. Warranty terms typically cover defects in materials and workmanship for a specified period from the date of purchase.
Keep your proof of purchase for warranty claims.
10. Customer Support
If you require further assistance or have questions not covered in this manual, please contact Peco customer support. Contact information can typically be found on the product packaging or the official Peco website.
Online Resources: www.peco.com
