Milton Roy Hartell KT3

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INTRODUCTION

HARTELL condensate pumps are designed to collect and automatically remove the water produced

from an air conditioner evaporative coil and/or a gas-condensing furnace. This pump has been care-

fully engineered to provide long, trouble free service and is of the highest quality workmanship and

materials.

These pumps have been thoroughly inspected and tested, then carefully packaged to insure safe de-

livery and operation. When you receive your pump, examine it carefully to determine that there are

no damaged or broken parts. If damage is detected, notify the firm from where the pump was pur-

chased. They will assist with a repair or replacement.

See the precautions listed below before continuing.

CAUTION: READ ALL INSTRUCTIONS CAREFULLY BEFORE STARTING INSTALLATION

- Pump should only be used with liquids compatible with pump component materials. Do not use to pump flammable or

explosive fluids. Do not use in explosive atmospheres.

- The pump is supplied with a grounding type plug. To reduce the risk of electrical shock be certain that it is connected to

a properly grounded, grounding receptacle.

- In any installation where property damage and/or personal injury might result from an inoperative or leaking pump

due to power outages, discharge line blockage, or any other reason, a back up system(s) (aux. switch) and/or alarm

should be used.

- Do not handle pump with wet hands or when standing on a wet or damp surface, or in water.

- Shut off the electrical power at the fuse box before making any connections. All wiring must comply with local codes.

THREE YEAR LIMITED WARRANTY

HARTELL KT3 and PAB3 condensate pumps are guaranteed to be free from defects in workmanship or materials and

to function satisfactorily, when properly installed, for a period of THREE (3) years from date of installation. HARTELL

will replace, without charge, any HARTELL product found to be defective upon examination at our factory if returned

within the guarantee period, transportation charges prepaid.

This guarantee does not apply if the product has been misapplied or mechanically damaged, HARTELL assumes no

liability for resultant damages of any kind arising out of the use of its products.

Condensate removal pumps from Hartell

KT3

PAB3

INSTALLATION

OPERATION

MAINTENANCE

Phone: 215-322-0730

70 Industrial Drive Fax: 215-322-2944

Ivyland, PA Web: www.hartell.com

18974 Email: info@hartell.com

Division of Milton Roy Co.

Hartell Pumps

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Overview

Important Precautions and Safety Information
Installation Guidelines
Piping
Electrical Connections
Operation
Maintenance and Troubleshooting
Pump Does Not Run
Pump Motor Runs with No Discharge
Algae Formation Note
Disassembly
Assembly
Three Year Limited Warranty

The Hartell KT3 and PAB3 are condensate removal pumps designed to collect and automatically remove water produced from air conditioner evaporative coils and/or gas-condensing furnaces. These pumps are engineered for long, trouble-free service, built with high-quality workmanship and materials. Each pump undergoes thorough inspection and testing before being carefully packaged to ensure safe delivery and operation. Upon receipt, users should examine the pump for any damaged or broken parts and report issues to the point of purchase for repair or replacement.

Important Precautions and Safety Information:

Liquid Compatibility: The pump should only be used with liquids compatible with its component materials. It is not designed for pumping flammable or explosive fluids, nor should it be operated in explosive atmospheres.
Electrical Safety: The pump is supplied with a grounding-type plug. To minimize the risk of electrical shock, it must be connected to a properly grounded receptacle.
Backup Systems: In any installation where property damage or personal injury could result from an inoperative or leaking pump (due to power outages, discharge line blockage, or other reasons), a backup system (e.g., an auxiliary switch) and/or an alarm should be used.
Handling: Do not handle the pump with wet hands, or while standing on a wet, damp, or submerged surface.
Power Disconnection: Always shut off electrical power at the fuse box before making any connections. All wiring must comply with local codes.

Installation Guidelines:

The pump can be mounted on a wall, the air conditioner case, or the floor. It must be level, and the inlet must be positioned below the lowest drain point of the coil or furnace. If wall or case mounting, the provided mounting tabs on the reservoir sides should be used to secure the pump.

Piping:

Flexible tubing or pipe should be run from the evaporator and furnace to the pump, inserted into the drain inlet hole. Ensure the pipe does not interfere with the float. The inlet pipe should be cut at an angle to prevent it from closing off against the pump's bottom.

Connect 3/8" ID tubing to the barbed check valve. This tubing should extend straight up as high as necessary, but not beyond the pump's head/GPH rating. Avoid kinking the tubing, as this will block flow. From this high point, the discharge tubing should slope downward to a point above the drain, then turn down and extend to a point below or level with the bottom of the condensate pump. If downward sloping is not possible, an inverted "U" trap should be created directly above the pump at its highest point.

Electrical Connections:

Line Voltage: Connect the power cord to the appropriate voltage as indicated on the motor nameplate. The pump requires a constant power source, not an intermittent source like a fan or limit control circuit.
Low Voltage – Auxiliary Safety Switch: Connect the auxiliary safety switch leads to the thermostat control circuit of the air conditioner/furnace. This feature will disrupt the thermostat demand in a high-water condition. Caution: Thermostat demand disruption should not be used if cooling or heating requirements are critical. An alarm system should be used with the auxiliary switch instead in such cases.

Operation:

Once properly installed, the Hartell condensate pump operates automatically. Water collects in the reservoir, and the pump activates when the float reaches a preset point, pumping out the water. The motor turns off when the water level drops to another preset point. Under normal circumstances, the pump requires minimal maintenance for efficient operation. If problems arise, refer to the maintenance instructions.

Maintenance and Troubleshooting:

Pump Does Not Run:

Verify that power to the air conditioner and/or furnace system is on, allowing condensate production.
Check that the pump is plugged in and the circuit is active (e.g., no blown fuse or tripped breaker).
The water level in the reservoir must be within 2" of the reservoir top to activate the switch. If no water is entering the reservoir, the inlet tube may be blocked and require cleaning.
If there is sufficient water, the float might be stuck due to dirt or algae. Flush the reservoir with warm water and a mild soap or detergent.

Pump Motor Runs with No Discharge:

Inspect the entire length of the discharge tubing to ensure it is clear and not plugged.
Check the check valve for clogging. If clogged, unplug the pump, remove the fitting, and clean with mild soap or detergent.
The discharge port of the impeller chamber may be clogged by debris. Refer to disassembly instructions for cleaning the chamber.

Algae Formation Note:

In cases of extreme algae formation, unplug the pump and fill the reservoir with a commercially available algaecide. Follow the algaecide directions for destroying the algae. After the waiting period, dump the algaecide from the reservoir. Rinse with water and repeat if necessary. Be careful not to clog the check valve when restarting the pump after this thorough cleaning.

Disassembly:

Unplug the pump and drain water from the reservoir.
Place the pump upside down.
Place a screwdriver under the baseplate tab (while placing a thumb over the tab to prevent breakage) and pry the cover up and off.
Remove the "O" ring seal and keep it clean.
Remove any debris from the impeller chamber and spin the impeller by hand to ensure free movement.

Assembly:

Clean and lightly lubricate the "O" ring with vegetable oil.
Stretch the "O" ring onto the baseplate.
Place the baseplate tab into the reservoir base slot.
Hold the tab in place with your thumb and snap the cover into the reservoir with the heel of your hand. If needed, tap the cover with a plastic mallet to fully seat it.
Test for leaks. If a leak occurs, reinstall the cover using a new "O" ring.

Three Year Limited Warranty:

Hartell KT3 and PAB3 condensate pumps are guaranteed to be free from defects in workmanship or materials and to function satisfactorily, when properly installed, for a period of THREE (3) years from the date of installation. Hartell will replace, without charge, any defective product upon examination at their factory if returned within the guarantee period, with transportation charges prepaid. This guarantee does not apply if the product has been misapplied or mechanically damaged. Hartell assumes no liability for resultant damages of any kind arising out of the use of its products.