1. Introduction
This manual provides essential information for the safe installation, operation, and maintenance of your Marley M602W Qmark Electric Line Voltage Wall Thermostat. This device is designed for wall-mounted, heating-only applications and features double-pole operation with a distinct OFF position. Please read these instructions thoroughly before installation and use.
Key Features:
- Double-pole operation with a marked OFF position for enhanced safety.
- Snap action design for extended operational life.
- Temperature differential of 4 degrees Fahrenheit.
- Adjustable temperature range from 45°F to 75°F.
2. Important Safety Information
WARNING: Risk of electric shock. Installation must be performed by a qualified electrician in accordance with all local and national electrical codes. Disconnect power at the main service panel before installing or servicing this thermostat.
- Ensure the power supply matches the thermostat's voltage rating (277 Volts).
- Do not operate the thermostat with damaged wiring.
- Keep the thermostat away from water and excessive moisture.
- This thermostat is intended for heating control only.
3. Installation (Setup)
The Marley M602W thermostat is designed for wall mounting and direct wiring into a line voltage heating system. Proper installation is crucial for safe and effective operation.
Installation Steps:
- Power Disconnection: Turn off power to the heating circuit at the main electrical panel before beginning installation. Verify power is off using a voltage tester.
- Mounting Location: Select an indoor wall location away from drafts, direct sunlight, and heat sources that could affect temperature readings. Mount at standard switch height.
- Wiring: Connect the thermostat's wires to your heating system's line voltage wiring. This is a double-pole thermostat, meaning it disconnects both sides of the 277V line when in the 'OFF' position. Ensure all connections are secure and comply with local electrical codes. Refer to the wiring diagram provided with the product packaging for specific connections (L1, L2, T1, T2).
- Secure Thermostat: Mount the thermostat securely to the wall box using the provided screws.
- Restore Power: Once installation is complete and all connections are verified, restore power at the main electrical panel.
4. Operating Instructions
The Marley M602W thermostat features a simple manual control for setting your desired room temperature.
Temperature Adjustment:
- Turn On: Rotate the central dial clockwise from the 'OFF' position to your desired temperature setting. The thermostat will activate the heating system when the room temperature falls 4°F below the set point.
- Set Temperature: The dial is marked with temperature indicators from 45°F to 75°F. Rotate the dial to align with your preferred temperature.
- Turn Off: To completely turn off the heating system, rotate the dial counter-clockwise until it clicks into the 'OFF' position. This engages the double-pole disconnect feature.
5. Maintenance
The Marley M602W thermostat requires minimal maintenance to ensure continued reliable operation.
- Cleaning: Periodically wipe the exterior of the thermostat with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the thermostat housing.
- No Batteries: This thermostat is corded electric and does not require batteries.
- Inspection: Annually inspect the thermostat for any visible damage or loose connections. If any issues are found, disconnect power and consult a qualified electrician.
6. Troubleshooting
If you experience issues with your Marley M602W thermostat, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat does not turn on/heating system is not active. | No power to the thermostat; thermostat set to 'OFF'; faulty wiring connection; tripped circuit breaker. | Check circuit breaker; ensure thermostat is not in 'OFF' position; verify power supply. If issues persist, consult a qualified electrician to check wiring. |
| Inaccurate temperature control or inconsistent heating. | Thermostat location affected by drafts or heat sources; internal component issue. | Ensure thermostat is not in a drafty area or near a heat source. If the issue continues, the thermostat may require replacement. |
| Knob feels loose or difficult to turn. | Mechanical wear or damage. | If the knob is loose or not functioning correctly, the thermostat may need to be replaced. |
| Thermostat does not work with 240V system. | Incorrect voltage application or incompatible system. | This thermostat is rated for 277 Volts. Ensure your heating system's voltage matches this specification. Consult a qualified electrician for compatibility verification. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Marley |
| Model Name | M602W |
| Controller Type | Push Button (Rotary Dial) |
| Special Feature | Temperature Display (via dial markings) |
| Color | White |
| Specific Uses | Commercial/Industrial Use, Hospital Settings, Home Healthcare |
| Temperature Control Type | Manual |
| Connectivity Technology | Wired |
| Included Components | Wall Thermostat & Controls |
| Power Source | Corded Electric |
| Voltage | 277 Volts |
| Material | Plastic, Stainless Steel |
| Display Type | Analog (dial markings) |
| Finish Type | Glossy |
| Control Method | Rotary Dial |
| Mounting Type | Wall Mount |
| Temperature Range | 45°F - 75°F |
| Differential | 4°F |
| Item Weight | 8 ounces (0.5 Pounds) |
| Product Dimensions | 2.25 x 2.56 x 4.63 inches |
| Certifications | CSA, UL |
| UPC | 098319841513 |
8. Warranty and Support
For warranty information and customer support regarding your Marley M602W thermostat, please consult the documentation included with your purchase or visit the official Marley website. You may also contact Marley customer service directly for assistance.
Marley Official Store: Visit the Marley Store on Amazon
