InSinkErator PRO750 Pro Series 3/4 HP Food Waste Disposal User Manual

Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your InSinkErator PRO750 Pro Series 3/4 HP Food Waste Disposal. Please read all instructions carefully before beginning installation or operation.

Product Overview

Figure 1: InSinkErator PRO750 Pro Series 3/4 HP Food Waste Disposal unit. This image displays the compact, black body of the disposal unit with its stainless steel mounting collar visible at the top.

The InSinkErator PRO750 is a powerful 3/4 HP food waste disposal unit designed for continuous feed operation. It features Evolution Series Technology for quiet performance and multi-stage grinding, effectively breaking down various food scraps into fine particles for easy disposal through your plumbing system.

Setup and Installation

Installation of the InSinkErator PRO750 requires careful attention to plumbing and electrical connections. It is recommended that installation be performed by a qualified professional.

Pre-Installation Checklist:

• Ensure power supply is disconnected at the circuit breaker before starting.
• Verify that the sink flange opening is compatible with the disposal's mounting system.
• Gather necessary tools: plumber's putty, screwdrivers (keystone, Phillips #2), adjustable wrench or ChannelLock pliers, and a 3/8" or 1/2" punch for the dishwasher knockout.
• Confirm availability of a grounded electrical outlet or appropriate wiring for direct connection.
• If connecting a dishwasher, ensure a dishwasher inlet connection kit is available.

General Installation Steps:

1. Remove the existing disposal unit (if applicable) and clean the sink flange area thoroughly.
2. Apply plumber's putty around the sink flange and install it into the sink opening. Secure the mounting assembly from underneath the sink.
3. Connect the disposal unit to the mounting assembly. The quick-release mount is designed for secure and easy attachment.
4. Make electrical connections. The PRO750 operates on 120 Volts. Ensure proper grounding.
5. If connecting a dishwasher, remove the knockout plug from the disposal's dishwasher inlet using a punch.
6. Connect the disposal to the drain plumbing (P-trap, trap arm). Ensure all connections are watertight.
7. Once installed, check for leaks by running water through the sink and disposal.

Note: Refer to the detailed instructions provided in the physical user manual included with your product for specific diagrams and safety warnings.

Operating Instructions

The InSinkErator PRO750 is designed for efficient food waste disposal. Follow these steps for optimal performance:

1. Turn on a medium stream of cold water.
2. Turn on the disposal unit.
3. Scrape food waste into the sink opening.
4. Continue running cold water for a few seconds after grinding is complete to flush the drain line.

Understanding How Your Disposal Works:

Unlike blenders, food waste disposals do not use spinning blades. Instead, they utilize impellers (or lugs) mounted on a spinning plate. This plate uses centrifugal force to continuously push food waste particles against a stationary grind ring. The grind ring then breaks down the food waste into very fine particles, effectively liquefying them. The running water flushes these liquefied particles through the grind ring, out of the disposal, and into your wastewater pipe, eventually flowing to a wastewater treatment plant or your septic system.

Maintenance Tips

Regular maintenance helps ensure the longevity and efficient operation of your disposal unit.

• Use Cold Water: Always run cold water when operating the disposal. Cold water solidifies grease and fats, allowing them to be chopped up and flushed away rather than coating the pipes.
• Grind Regularly: Use your disposal regularly to prevent rust and corrosion, and to keep the components moving.
• Clean with Citrus: Grind citrus peels (lemon, orange) to help clean the grind chamber and eliminate odors.
• Avoid Certain Items: Do not put fibrous materials (celery, corn husks), large bones, fruit pits, expandable foods (pasta, rice), or non-food items into the disposal.
• Keep it Clear: Never pour harsh chemicals or drain cleaners into the disposal, as they can damage the unit and plumbing.

Troubleshooting

If your InSinkErator PRO750 encounters an issue, try these common troubleshooting steps:

Disposal Not Starting/Humming:

• Reset Button: Look for a small red reset button on the bottom of the disposal unit. Press it firmly.
• Circuit Breaker: Check your home's electrical panel and reset the circuit breaker if it has tripped.
• Jammed Grinding Plate: If the motor hums but doesn't grind, something might be jammed. Turn off the power, then use the hex wrench (provided with the disposal) to insert into the center hole on the bottom of the unit and turn it back and forth to free the grinding plate. Remove any foreign objects with tongs or pliers.

Leaking:

• Loose Connections: Check all plumbing connections (sink flange, discharge pipe, dishwasher connection) for tightness.
• Cracks: Inspect the disposal housing for any cracks. If a crack is present, the unit may need replacement.

Odors:

• Clean Thoroughly: Grind ice cubes with citrus peels to help dislodge food particles and freshen the unit.
• Clean Splash Guard: Remove and clean the rubber splash guard, as food particles can accumulate there.

If these steps do not resolve the issue, contact customer support or a qualified plumber.

Specifications

Warranty Information

Specific warranty details for the InSinkErator PRO750 Pro Series 3/4 HP Food Waste Disposal are typically provided in the documentation included with your purchase. For the most accurate and up-to-date warranty information, please refer to the official warranty card or contact InSinkErator customer service directly.

Support

For further assistance, technical support, or to inquire about replacement parts, please visit the official InSinkErator website or contact their customer service department.

You can also visit the InSinkErator Store on Amazon for product information and resources.