Truma VarioHeat eco AU Technical and Customer Service Manual

Installation and Operation Guide

Installation Overview

• Room Temperature Sensor: Monitors and adjusts the room temperature.
• Control Panel: Truma CP plus VarioHeat for user interface.
• Optional Electric Window Switch: Enhances safety by turning off the heater if the window is opened.
• Exhaust Duct and Warm Air Distribution: Ensures proper ventilation and distribution of heated air.
• Circulating Air: Draws in air from the room to be heated.
• Gas Inlet Connection: Includes a gas pressure test point for safety checks.
• VarioHeat Pre-Pressure Regulator: Regulates gas pressure for optimal operation.

Installation Requirements

• Intended Use: Designed exclusively for recreational vehicles (RVs) as a warm-air heater.
• Safety and Compliance: Installation must comply with local gas fitting regulations, municipal building codes, electrical wiring regulations, and AS/NZS 5601.2.
• Gas Type: Use propane gas only. Butane or mixtures containing more than 10% butane are not permitted.
• Nominal Gas System Pressure: Must be 2.75 kPa.
• Electrical Safety: Disconnect the vehicle’s power supply and close the gas supply during installation.
• Combustion Air and Exhaust: Ensure combustion air is drawn from outside and exhaust gases are vented outside the RV.

Installation Steps

1. Selecting Location: Install the heater centrally for even heating. Ensure accessibility for service and maintenance.
2. Fastening the Heater: Use the supplied mounting brackets and ensure the heater is securely attached to prevent movement during travel.
3. Exhaust Duct Installation: Use Truma accessories only. Duct lengths should be between 30 cm to 100 cm.
4. Wall Cowl Installation: Ensure it vents outdoors and is placed away from any vents, windows, or tank nozzles within specified clearances.
5. Warm Air Distribution: Utilize Truma accessories for distributing warm air efficiently within the RV.
6. Room Temperature Sensor Installation: Install above entrance doors on a vertical wall for optimal temperature control.
7. Electrical Connections: Follow wiring diagrams carefully. Ensure a stable power supply of 12 V with appropriate cable sizing.

Safety and Maintenance

• Do Not Modify: Alterations can cause hazards and void the warranty.
• Protective Measures: Wear gloves and use edge protection when handling cables.
• Regular Checks: Perform functional checks and ensure gas connections are leak-free.

Technical Specifications

• Gas Type: Propane
• Test Point Pressure: 2.00 kPa
• Operating Pressure: 2.75 kPa
• Rated Thermal Input: Min. stage: 4.53 MJ/h, Max. stage: 9.75 MJ/h
• Thermal Efficiency: Min. stage: 86.4%, Max. stage: 84.3%
• Air Flow Rate: 85 m³/h - 175 m³/h
• Duct Static Pressure: < 170 Pa
• Temperature Rise: < 80 °C
• Power Supply: 10.5 - 16 V
• Power Consumption at 12 V: Operating: 0.85 - 3.65 A, Stand-by: 0.004 A
• Weight: Heater without periphery: 5.5 kg

Troubleshooting and Support

• Functional Checks: Ensure all heater functions operate as per the operating instructions. If faults occur, refer to the troubleshooting section in the operating manual.
• Service Contact: For issues not resolved by troubleshooting, contact the authorized service center with the equipment model and serial number ready for assistance.

This manual serves as a comprehensive guide for customer service and technical staff in supporting users of the Truma VarioHeat eco AU heater. Always adhere to safety guidelines and installation requirements to ensure optimal operation and user satisfaction.