This document is an instruction manual for DEWALT submersible sump pumps, covering various models including DXWP62383, DXWP62381, DXWP62389, DXWP62583, DXWP62581, DXWP62783, DXWP62781, DXWP62183, and DXWP62181. These pumps are designed for removing groundwater from residential sump basins and are constructed from aluminum, stainless steel, and cast iron.
Function Description
The DEWALT submersible sump pumps are designed for automatic operation, primarily to remove ground water from residential sump basins. The motor is oil-cooled and hermetically sealed, ensuring durability and efficient heat dissipation. Each pump is equipped with a float switch for automatic activation and deactivation, and a 10 ft. (3.05m), 3-prong grounding type power cord for safe electrical connection. The pump's operation relies on water for lubrication and cooling; therefore, running it dry is explicitly warned against as it can cause overheating, damage to internal parts, and void the warranty. These pumps are not intended for pumping corrosive, flammable, or explosive fluids, nor for use with water softener discharge (brine) or condensate from high-efficiency appliances, as these liquids can damage the pump and void the warranty. They are also not designed for use as waterfall, pond, or fountain pumps.
Important Technical Specifications
The DEWALT sump pump series offers a range of models with varying specifications to suit different needs:
- Horsepower (HP): Models range from 1/3 HP (DXWP62383, DXWP62381, DXWP62389) to 1 HP (DXWP62183, DXWP62181), with 1/2 HP (DXWP62583, DXWP62581) and 3/4 HP (DXWP62783, DXWP62781) options available.
- Voltage: All models operate on 115 Volt AC.
- Amperage: Amperage varies by HP, from 6.5 Amps for 1/3 HP models to 12 Amps for 1 HP models.
- Frequency (Hz): All models operate at 60 Hz.
- Phase: All models are single-phase.
- Discharge Size: All models feature a 2 in. (50.8mm) FNPT discharge.
- Adapter Size: All models include a 1-1/2 in. (38.1mm) NPT adapter.
- Max. Solids Handling: All models can handle solids up to 1/2 in. (12.7mm).
- Liquid Temperature Range: The pumps are designed to operate with liquids between 35°F and 120°F (1.67°C - 48.9°C). Pumping liquids over 120°F (48.9°C) is not recommended and can trigger the thermal overload protector.
- Cord Length: All models come with a 10 ft. (3.05m) power cord.
- Pump Motor Cover: Constructed from Aluminum across all models.
- Motor Housing Construction: Made of Stainless Steel for all models.
- Pump Base Construction: Cast Iron for all models.
- Impeller: Cast Iron for all models.
- Motor Shaft: Stainless Steel for all models.
- Shaft Seal: Carbon/Ceramic/Stainless Steel for all models.
- Fasteners: Stainless Steel for all models.
- Max Vertical Lift: Ranges from 25 ft. (7.62m) for 1/3 HP models to 37 ft. (11.3m) for 3/4 HP models and 34 ft. (10.4m) for 1 HP models.
- Max. PSI: Ranges from 10.8 PSI for 1/3 HP models to 16.0 PSI for 3/4 HP models and 14.7 PSI for 1 HP models.
- Check Valve: Included with DXWP62389, and sold separately for other models (part no. DXWPCV69512).
- Float Switch Type: Models DXWP62383, DXWP62389, DXWP62583, DXWP62783, DXWP62183 feature a vertical float switch. Models DXWP62381, DXWP62581, DXWP62781, DXWP62181 feature a tethered float switch.
- Switch On/Off Levels (Factory Set):
- Vertical Float Switch: "On" levels range from 7 in. (178 mm) to 8.5 in. (216 mm), with a consistent "Off" level of 2.5 in. (64 mm).
- Tethered Float Switch: "On" levels range from 14 in. (356 mm) to 16 in. (406 mm), with "Off" levels ranging from 5.5 in. (140 mm) to 7.25 in. (184 mm).
Usage Features
The pumps are designed for ease of installation and operation, with specific guidelines to ensure safety and optimal performance.
- Installation:
- Requires placement on a solid foundation in the sump basin, avoiding direct contact with sand, silt, or small stones to prevent clogging and damage.
- A full-flow, swing-type check valve is highly recommended on the discharge line, ideally above the sump basin cover, to increase pump life and facilitate maintenance.
- Connection to the discharge line should use PVC or ABS pipe and fittings for permanent installations, avoiding corrugated drain hose for long-term use.
- The discharge pipe should be as short as possible with minimal fittings to reduce friction and head loss, adhering to all plumbing codes.
- Crucially, the float switch must operate freely without touching the sides of the sump basin to prevent malfunction.
- All wiring and electrical connections must be performed by a qualified electrician, connecting to a properly grounded 115V AC GFCI receptacle within 6 ft. (1.83m) of the basin. Extension cords are strictly prohibited.
- Automatic Operation:
- Involves connecting the piggy-back plug of the float switch into a grounded GFCI receptacle, then connecting the pump plug into the back of the piggy-back float switch plug.
- Testing the installation by filling the basin with water is essential to ensure the float switch operates freely and correctly.
- An anti-airlock hole is a normal feature of these pumps, emitting a stream of water during operation. This hole must be periodically cleaned to prevent air locking.
- Manual Operation:
- If the float switch malfunctions or for continuous pumping, the pump can be operated manually by bypassing the float switch. This involves disconnecting the pump power cord from the piggy-back float switch plug and connecting it directly to the receptacle.
- During manual operation, the pump must be continuously monitored to prevent it from running dry.
Maintenance Features
Regular maintenance is crucial for the longevity and reliable performance of the sump pump.
- Safety First: Always disconnect the power supply before any installation, service, or maintenance to prevent electric shock. All repairs must be performed by a qualified technician.
- Cool-Down Period: The submersible pump contains oil that can become pressurized and hot. Allow 2-3 hours for the pump to cool before servicing.
- Motor: The pump motor is hermetically sealed and requires no service. Disassembly of the motor housing or modification of the power cord voids the warranty.
- Sump Basin and Intake: Periodically check the sump basin for accumulation of mud, silt, sand, and foreign objects, and clean as needed to prevent damage or clogging. The intake should also be checked and cleaned for obstructions.
- Anti-Airlock Hole: Regularly inspect and clean the anti-airlock hole to prevent air locking.
- Float Switch: Inspect the float switch for any accumulated sediment or debris that could inhibit its proper operation and clean if necessary.
- Power Cord: Inspect the power cord for signs of damage or wear. Do not operate the pump if the cord is damaged or worn, as this poses a risk of fire or electrical shock. The handle provided with the pump should be used for installation and removal, not the power cord.
- Thermal Protector: The pump motor is equipped with an automatic resetting thermal protector that will shut down the pump in an overheat situation. The pump may restart unexpectedly once the motor cools, so caution is advised.
- Regular Cycling: For applications where the pump may not activate for extended periods, it is recommended to cycle the pump at least once per month to ensure the system is working properly.
The warranty covers defects in material or workmanship for ten years from the date of purchase for the original user, with a 12-month period from the manufacture date if proof of purchase is unavailable. The warranty is void if the product is used for purposes other than its design, not installed according to codes, connected to incorrect voltage, exposed to abrasive or corrosive substances, or allowed to run dry.
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