1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Bobrick B-3974 Recessed Convertible Towel/Waste Unit. This unit is designed for commercial and institutional restrooms, offering both an automatic universal roll paper towel dispenser and a 12-gallon waste receptacle in a single, space-saving recessed design. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product.
Image 1.1: The Bobrick B-3974 Recessed Convertible Towel/Waste Unit. This image displays the full unit, showing the upper paper towel dispenser section and the lower waste receptacle section, both integrated into a single recessed stainless steel housing.
2. Safety Information
Adherence to the following safety guidelines is crucial for preventing injury and damage to the unit.
- Qualified Personnel: Installation and servicing should only be performed by qualified and authorized personnel.
- Electrical Safety: If the automatic towel dispenser requires electrical connection, ensure power is disconnected before installation or maintenance. All electrical work must comply with local codes and regulations.
- Proper Mounting: Ensure the unit is securely mounted to a structurally sound wall or recess opening to prevent it from falling.
- Sharp Edges: Exercise caution during handling and installation as stainless steel components may have sharp edges.
- Waste Receptacle: Do not overload the waste receptacle. Ensure proper disposal of waste materials.
- Cleaning: Use only recommended cleaning agents. Avoid abrasive cleaners that can damage the stainless steel finish.
3. Setup and Installation
The Bobrick B-3974 unit is designed for recessed or wall-mounted installation. Proper installation is critical for functionality and safety.
3.1 Site Preparation
- Recessed Mounting: Prepare a wall opening of appropriate dimensions. Refer to the product specifications for exact cutout sizes. Ensure adequate structural support within the wall cavity.
- Wall Mounting: If surface mounting, ensure the wall surface is flat, clean, and capable of supporting the unit's weight when full.
- Clearance: Ensure sufficient clearance around the unit for operation and maintenance, including opening the waste receptacle and refilling the towel dispenser.
3.2 Mounting Instructions
- Carefully unpack the unit and inspect for any shipping damage.
- For recessed installation, insert the unit into the prepared wall opening. Ensure it is level and flush with the wall surface.
- Secure the unit using appropriate fasteners (not included) through the designated mounting holes. Fasteners must be suitable for the wall material and provide adequate support.
- For wall mounting, mark the desired mounting height and positions for fasteners. Drill pilot holes if necessary. Secure the unit firmly to the wall.
- If the unit includes an automatic towel dispenser requiring power, connect it according to local electrical codes. Consult a licensed electrician if unsure.
4. Operating Instructions
4.1 Paper Towel Dispenser
- The unit is designed for universal roll paper towels.
- To dispense towels, place hands under the dispenser opening. The automatic sensor will detect motion and dispense a pre-measured length of towel.
- Tear the dispensed towel downwards to separate it from the roll.
4.2 Waste Receptacle
- The waste receptacle has a 12-gallon capacity.
- To dispose of waste, simply place items into the opening of the receptacle.
- Ensure the receptacle is not overfilled to prevent blockages or spillage.
5. Maintenance
5.1 Refilling Paper Towels
- Unlock and open the dispenser cover using the provided key.
- Remove any remaining stub roll.
- Load a new universal paper towel roll onto the spindle, ensuring the paper feeds correctly through the dispensing mechanism.
- Close and lock the dispenser cover.
5.2 Emptying Waste Receptacle
- Unlock and open the waste receptacle door.
- Carefully remove the waste liner or bag.
- Dispose of waste according to local regulations.
- Insert a new waste liner or bag.
- Close and lock the waste receptacle door.
5.3 Cleaning
- Clean the exterior surfaces with a soft cloth and a mild, non-abrasive cleaner.
- For stainless steel, wipe in the direction of the grain to prevent streaking.
- Do not use harsh chemicals, abrasive pads, or steel wool, as these can scratch or damage the finish.
- Regularly clean the sensor area of the towel dispenser to ensure proper operation.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Towel dispenser not dispensing. | No paper roll, paper jammed, sensor obstructed, low battery (if applicable), power disconnected. | Check paper roll, clear jam, clean sensor, replace batteries, check power connection. |
| Towel dispenser dispenses too much/too little. | Sensor sensitivity setting, incorrect paper type. | Refer to specific model instructions for sensor adjustment. Ensure correct paper type is used. |
| Waste receptacle door not closing properly. | Overfilled, obstruction, damaged hinge/latch. | Empty receptacle, remove obstruction, inspect and repair hinge/latch. |
| Unit appears loose or unstable. | Improper installation, loose fasteners. | Re-check mounting fasteners and ensure they are tightened securely. Reinforce wall support if necessary. |
7. Specifications
| Model | B-3974 |
| Brand | Bobrick |
| Material | Stainless Steel |
| Color | Silver |
| Mounting Type | Recessed Mount, Wall Mount |
| Product Dimensions (L x W) | 54.75" x 16" |
| Item Weight | 0.01 Ounces (Note: This weight may be a placeholder or refer to a component, not the full unit.) |
| Waste Receptacle Capacity | 12 Gallons |
| UPC | 716954400710 |
| ASIN | B0039QBH18 |
8. Warranty and Support
For specific warranty information, please refer to the documentation provided with your purchase or visit the official Bobrick website. Bobrick products are manufactured to high-quality standards, and warranty terms typically cover defects in materials and workmanship under normal use and service.
For technical support, replacement parts, or further assistance, please contact Bobrick customer service through their official website or the contact information provided at the time of purchase. When contacting support, please have your model number (B-3974) and purchase details readily available.
Bobrick Official Website: www.bobrick.com
