WENGART WG505 Programmable Thermostat User Manual

Introduction

The WENGART WG505 Programmable Thermostat is an advanced electronic intelligent control device designed for electric heating systems, including radiant floor heating and gas boilers. It features a user-friendly LCD touch screen, weekly programming capabilities, and robust anti-interference properties, ensuring high reliability and precise temperature control for commercial, residential, and light industrial buildings.

This manual provides essential information for the safe and efficient operation, installation, and maintenance of your WG505 thermostat.

Safety Information

Please read all safety instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or damage to the thermostat.

• Always disconnect power at the circuit breaker before installing or servicing the thermostat.
• Installation should be performed by a qualified electrician in accordance with local electrical codes.
• Do not expose the thermostat to water or excessive humidity.
• Ensure all wiring connections are secure and properly insulated.
• Do not attempt to repair or modify the thermostat yourself. Contact qualified personnel for service.

Product Features

• Compatibility: Designed for water floor heating systems and can be linked to gas boilers.
• Touch Control: Features responsive touch buttons for easy operation.
• Programmable Modes: Offers both manual and programmable modes with a one-week programming function.
• Flexible Scheduling: Supports 6 fixed time periods on working days and 2 on rest days, with options for 5, 6, or 7-day programming.
• Temperature Calibration: Allows for precise temperature calibration with 0.1°C accuracy.
• Clear Display: LCD display with glass panel shows room temperature, set temperature, heating status, and current time.
• Sensor Options: Can utilize either a built-in sensor or an external NTC B=3380 10k @25℃ sensor.
• Backlight: White backlight illuminates during operation and automatically turns off after 30 seconds of inactivity.
• Power-Off Memory: Retains settings even after power loss.
• Child Lock: Button lock function prevents accidental adjustments.
• Anti-Freezing Function: Automatically activates heating if the indoor temperature drops below 5°C to prevent pipes from freezing.

Setup and Installation

The WG505 thermostat is designed for embedded, concealed wall mount installation, compatible with 86 European cassettes. It operates on AC120V.

Package Contents:

• 1 x WENGART WG505 Thermostat
• 2 x Mounting Screws
• 1 x User Manual (this document)

Installation Steps:

1. Power Disconnection: Turn off the main power supply to the heating system at the circuit breaker before beginning installation.
2. Mounting: Install the thermostat into a standard 86mm wall box. Secure it using the provided screws.
3. Wiring: Connect the electrical wires according to the wiring diagram. Ensure correct connections for power (L, N), load (OUT), and sensor (NTC 1, 2) if using an external sensor. The thermostat supports AC110V.

Figure 1: Rear view of the WG505 thermostat showing the wiring terminals. Connections include NTC sensor inputs (1, 2), power input (L1, N1), and output (N, L) for the heating system. This diagram is crucial for proper electrical installation.

Figure 2: Dimensional drawing of the WG505 thermostat, illustrating its front and side profiles with measurements in both inches and millimeters (86mm x 86mm x 36mm). This helps in planning the installation space.

4. Power On: Once wiring is complete and secure, restore power at the circuit breaker. The thermostat display should light up.

Operating Instructions

The WG505 thermostat features a touch-sensitive LCD display for all operations. The display shows various indicators for easy monitoring.

Figure 3: Detailed view of the WG505 thermostat's LCD screen with key display elements labeled, including room temperature, set temperature, timing switch, manual mode indicator, heating indicator, boiler linkage, and weekly programming mode indicator.

Basic Operation:

• Power Button (⏻): Press to turn the thermostat On or Off.
• Mode Button (⟳): Toggle between Manual Mode and Programming Mode.
• Time/Settings Button (🕒): Access time and advanced programming settings.
• Up (△) / Down (▽) Buttons: Adjust temperature settings or navigate through menu options.

Setting Temperature:

In Manual Mode, use the Up (△) and Down (▽) buttons to set your desired temperature. The temperature range is 5-35°C, adjustable up to 60°C in advanced settings.

Weekly Programming:

The thermostat allows for a 7-day programmable schedule with 6 time periods for working days and 2 for rest days. You can customize the time and temperature for each period.

Figure 4: Example of a custom programming schedule, showing different time periods and corresponding default temperatures for working days and weekends. This illustrates the flexibility of the thermostat's programming feature.

1. Press the Mode button (⟳) to enter Programming Mode.
2. Press the Time/Settings button (🕒) to cycle through the programming periods.
3. Use the Up (△) and Down (▽) buttons to adjust the start time and desired temperature for each period.
4. The thermostat will automatically switch to the set temperature at the programmed times.

Temperature Calibration:

If the displayed temperature differs from the actual room temperature, you can calibrate it. Access the calibration setting through the advanced menu (refer to the full manual for specific steps) and adjust by 0.1°C increments.

Child Lock Function:

To prevent unintended changes, activate the button lock function. Once locked, all buttons will be unresponsive until unlocked. Refer to the full manual for activation/deactivation steps.

Anti-Freezing Function:

When the thermostat is off, if the measured indoor temperature falls below 5°C, the anti-freezing function will automatically activate the heating to protect your pipes from freezing.

Maintenance

The WENGART WG505 thermostat requires minimal maintenance.

• Cleaning: Wipe the display and housing with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Avoid Obstructions: Ensure that the thermostat's sensor (if internal) is not covered or obstructed, as this can affect temperature readings.
• Regular Checks: Periodically check the wiring connections for any signs of wear or looseness.

Troubleshooting

If you encounter issues with your WG505 thermostat, refer to the following common problems and solutions:

If the problem persists after attempting these solutions, please contact WENGART customer support.

Specifications

Note: Some specifications may vary slightly based on production batch or regional standards.

Warranty and Support

Specific warranty information for the WENGART WG505 thermostat is typically provided with the product packaging or can be obtained directly from the manufacturer or authorized reseller at the time of purchase. Please retain your proof of purchase for warranty claims.

For technical support, troubleshooting assistance, or warranty inquiries, please contact WENGART customer service through their official website or the contact information provided with your product.