Fantini Cosmi CH117 Battery-Powered Thermostat User Manual

Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Fantini Cosmi CH117 Battery-Powered Thermostat. This electronic thermostat with a display is designed for heating and air conditioning systems, offering precise temperature control and ease of use.

Key Features:

• Electronic thermostat with display for heating and air conditioning installations.
• Three lockable temperature levels: Comfort, Economy, and Anti-freeze.
• Four function keys: two for increasing/decreasing temperature, one for 'off', and one for 'Comfort/Economy' mode selection.
• Temperature adjustment in 0.1 °C increments.

Safety Information

Please read all safety instructions carefully before installation and use. Failure to follow these instructions may result in property damage, injury, or death.

• Electrical Safety: Installation should only be performed by a qualified electrician or heating technician. Disconnect power to the heating/cooling system before installing or servicing the thermostat.
• Battery Handling: Use only the specified battery type. Do not mix old and new batteries. Dispose of used batteries responsibly according to local regulations.
• Placement: Install the thermostat away from direct sunlight, drafts, and heat sources (e.g., lamps, fireplaces) to ensure accurate temperature readings.
• Cleaning: Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.

Package Contents

Verify that all items are present in the package:

• Fantini Cosmi CH117 Thermostat Unit
• Mounting Bracket
• 2 Wires for connection
• User Manual (this document)
• Batteries (may be included or sold separately)

Setup and Installation

1. Choosing a Location

Select a central location on an interior wall, approximately 1.5 meters (5 feet) from the floor. Avoid areas near windows, doors, air vents, or direct sunlight, as these can affect temperature accuracy.

2. Mounting the Thermostat

1. Disconnect Power: Before starting, turn off the power to your heating/cooling system at the main circuit breaker.
2. Remove Old Thermostat (if applicable): Carefully remove your existing thermostat. Note the wiring connections.
3. Mounting Bracket Installation: The CH117 can be mounted directly on the wall or on a standard 503 box. Secure the mounting bracket to the wall using the provided screws.
4. Wiring: Connect the two wires from your heating/cooling system to the designated terminals on the CH117 thermostat. This thermostat is designed for a simple 2-wire connection and does not require changes to existing plant wiring.
5. Install Batteries: Open the battery compartment and insert the required batteries, ensuring correct polarity.
6. Attach Thermostat Unit: Carefully attach the CH117 thermostat unit to the mounting bracket, ensuring it clicks securely into place.
7. Restore Power: Turn the power back on at the main circuit breaker.

Image 1: Front view of the Fantini Cosmi CH117 Thermostat. This image shows the display and control buttons.

Operating Instructions

The Fantini Cosmi CH117 thermostat features a digital display and four control buttons for easy operation.

1. Display Overview

The display shows the current room temperature, the set temperature, and the active operating mode (Comfort, Economy, Anti-freeze).

2. Setting Temperature

• Use the Up (▲) and Down (▼) buttons to increase or decrease the desired temperature.
• Each press adjusts the temperature by 0.1 °C.
• The set temperature will be displayed temporarily and then the screen will revert to showing the current room temperature.

3. Selecting Operating Mode

The CH117 offers three lockable temperature levels:

• Comfort Mode: Maintains a comfortable temperature, typically for when the space is occupied.
• Economy Mode: Maintains a lower temperature to save energy, suitable for unoccupied periods.
• Anti-freeze Mode: Prevents the temperature from dropping below a critical point (e.g., 5°C) to protect pipes from freezing.

Press the Comfort/Economy button to toggle between these modes. The active mode will be indicated on the display.

4. Turning Off the Thermostat

Press the OFF button to turn off the heating/cooling function. The thermostat will remain powered for display and monitoring.

Maintenance

1. Battery Replacement

When the battery low indicator appears on the display, replace the batteries promptly. Typically, 2x AA or AAA batteries are required (refer to specifications for exact type).

1. Carefully remove the thermostat unit from its mounting bracket.
2. Open the battery compartment cover.
3. Remove the old batteries and dispose of them according to local regulations.
4. Insert new batteries, ensuring correct polarity (+/-).
5. Close the battery compartment and reattach the thermostat unit to the mounting bracket.

2. Cleaning

Wipe the thermostat's exterior with a soft, dry cloth. Do not use liquid cleaners, sprays, or abrasive materials, as these can damage the unit.

Troubleshooting

Specifications

Warranty and Support

For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Fantini Cosmi website. Keep your proof of purchase for warranty claims.

For further assistance, contact Fantini Cosmi customer service.