1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Schluter Ditra-Heat-E-RRS Power Module. Please read these instructions thoroughly before beginning any installation or use. Retain this manual for future reference.
The Schluter Ditra-Heat-E-RRS Power Module is designed to extend the power output of a Ditra-Heat-E-WiFi, Ditra-Heat-E-RT, or Ditra-Heat-E-R Thermostat by an additional 15 Amps, allowing for larger heated floor installations. It supports both 120V and 240V heating cables and includes a built-in Class A GFCI for enhanced safety.
2. Safety Information
WARNING: Risk of electric shock. Installation must be performed by a qualified electrician in accordance with all national and local electrical codes. Disconnect power at the circuit breaker before installation or servicing.
- Always ensure the power supply is disconnected before working on the module or heating system.
- The module must be installed in a standard electrical box.
- Do not expose the module to water or excessive moisture.
- The built-in Class A GFCI provides protection against ground faults. Test the GFCI regularly as per local codes and manufacturer recommendations.
- Ensure all wiring connections are secure and properly insulated.
- This device is intended for use with Schluter Ditra-Heat-E heating cables and thermostats only.
3. Product Overview
The Ditra-Heat-E-RRS Power Module acts as an expansion unit for your Schluter Ditra-Heat-E electric floor heating system. It allows you to control a larger heated area than a single thermostat can manage by providing an additional 15 Amps of power capacity.
Key Features:
- Enhanced Capacity: Boosts power output by 15 Amps when paired with a compatible Ditra-Heat-E thermostat.
- Versatile Support: Compatible with both 120V and 240V heating cables.
- Integrated Safety: Features a built-in Class A GFCI for immediate power cut-off in case of current imbalance.
- Scalability: Up to 10 modules can be connected in series with a single thermostat for extensive heating applications.
Figure 1: Front view of the Schluter Ditra-Heat-E-RRS Power Module.
4. Setup and Installation
Installation of the Ditra-Heat-E-RRS Power Module requires adherence to all applicable electrical codes and standards. Consult a qualified electrician if you are unsure about any part of the installation process.
4.1 Pre-Installation Checks
- Verify that the total amperage of the heating cables connected to the module does not exceed 15 Amps.
- Ensure the electrical box is appropriately sized for the module and wiring.
- Confirm that the power supply voltage (120V or 240V) matches the heating cables and the module's rating.
4.2 Wiring Instructions
- Disconnect Power: Turn off the power at the main circuit breaker before starting any wiring.
- Mount Module: Install the Ditra-Heat-E-RRS Power Module into a standard electrical box.
- Connect Power Supply: Connect the line voltage wires from the circuit breaker to the designated terminals on the power module. Follow the wiring diagram provided with the product for correct L1, L2 (for 240V), and Neutral connections.
- Connect Heating Cables: Connect the heating cable leads to the load terminals on the power module. Ensure proper polarity.
- Connect to Thermostat: Connect the communication wires from the Ditra-Heat-E-RRS Power Module to the compatible Ditra-Heat-E thermostat. This connection allows the thermostat to control the power module. Refer to the thermostat's manual for specific wiring details.
- Grounding: Ensure the module is properly grounded according to local electrical codes.
- Secure Wiring: Neatly arrange and secure all wiring within the electrical box.
Figure 2: Example of a Schluter Ditra-Heat-E-RRS Power Module (left) and a compatible thermostat (right).
Figure 3: Internal view of the power module, showing connection points.
4.3 Post-Installation
- Once all connections are made and secured, carefully replace the cover plate.
- Restore power at the circuit breaker.
- Test the GFCI by pressing the 'TEST' button on the module. The 'RESET' button should pop out, and power to the heating cables should be interrupted. Press 'RESET' to restore power. If the GFCI does not trip, consult a qualified electrician.
5. Operating Instructions
The Ditra-Heat-E-RRS Power Module operates in conjunction with a compatible Ditra-Heat-E thermostat. It does not have independent controls for temperature or scheduling. All heating functions are managed by the primary thermostat.
- Ensure the power module is receiving power and its GFCI is reset (if tripped).
- Refer to your Ditra-Heat-E thermostat's instruction manual for details on setting temperature, programming schedules, and other operational features.
- The power module will activate and deactivate the connected heating cables based on the commands received from the thermostat.
6. Maintenance
The Schluter Ditra-Heat-E-RRS Power Module requires minimal maintenance. Regular checks are recommended to ensure continued safe operation.
- GFCI Testing: Test the built-in GFCI monthly by pressing the 'TEST' button. The GFCI should trip, and the 'RESET' button should pop out. Press 'RESET' to restore power. If the GFCI fails to trip or reset, discontinue use and contact a qualified electrician.
- Cleaning: Clean the exterior of the module with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Visual Inspection: Periodically inspect the module for any signs of damage, loose connections, or discoloration.
7. Troubleshooting
If you experience issues with your Ditra-Heat-E-RRS Power Module, refer to the following table for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Heating cables not heating. | No power to the module. GFCI tripped. Loose wiring connection. Thermostat not calling for heat. | Check circuit breaker. Press 'RESET' on GFCI. Verify all wiring connections (with power off). Check thermostat settings and status. |
| GFCI trips frequently. | Ground fault in heating cable or wiring. Faulty module. | Disconnect heating cables and test GFCI. If it still trips, the module may be faulty. If it doesn't trip, inspect heating cables for damage. Consult a qualified electrician. |
| Module not responding to thermostat. | Communication wires incorrectly connected or damaged. | Verify communication wire connections between the module and thermostat. Refer to wiring diagrams. |
8. Specifications
| Attribute | Detail |
|---|---|
| Model Number | DHERR1/BW |
| Voltage Compatibility | 120V / 240V |
| Maximum Output Current | 15 Amps |
| GFCI Type | Class A (Built-in) |
| Dimensions | 6.2 x 3.4 x 2.6 inches |
| Item Weight | 8 ounces |
| Material | Plastic |
| Color | White |
| Manufacturer | Global Trade & Distribution Inc |
9. Warranty and Support
9.1 Limited Warranty
The Schluter Ditra-Heat-E-RRS Power Module is backed by a 3-year limited warranty against manufacturing defects. This warranty is valid when the product is installed according to the Schluter Installation Handbook and Technical Data Sheet, adhering to all guidelines and industry standards in effect at the time of installation.
9.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Schluter Systems customer support. Refer to the official Schluter Systems website for current contact information.
