OWNER'S MANUAL

INSTALLATION

Physical Installation

1. Install the pump on a flat surface.
   • Install the enclosed rubber feet onto the bottom of the tank.
   • Make sure the mounting surface will support the weight of the pump and water filled tank.
2. The pump can also be mounted onto a wall or the side of an air conditioner or furnace, using the enclosed mounting bracket. The tank has a mounting slot on each side so it can be positioned either way.
3. Pumps with an anti-sweat sleeve use a different bracket, but the mounting location holes are the same and the brackets are interchangeable.
4. Ensure that the pump is level and the inlet is below the coil drain.

A diagram shows a bracket mounted to a wall with screws, and a pump with an anti-sweat sleeve attached to the bracket.

Piping Connections

1. Cut end of pipe(s) from evaporator or furnace drain at a 45° angle as shown to prevent pipe(s) from sealing closed when sitting against the tank's floor.
2. The pump will accept up to three drain lines. However, take care to make sure that total inflow does not exceed the rated output of the pump to prevent overflow. Route drain pipe(s) downward into one or more pump inlet openings one to three inches, ensuring no interference with float operation. Keep any unused openings closed using the supplied cap plugs.
3. Install outlet tubing or piping onto outlet check valve and secure with hose clamp (not provided).
   • Use 3/8" inside diameter maximum tubing or piping to prevent excessive flow back to unit.
4. Route outlet tubing or piping from pump straight up as high as necessary.
   • Do not extend higher than 75% of the total dynamic head capacity of the pump.
5. From the high point, slope discharge line down slightly to a point above the drain area. Then, turn down and route to a suitable drain at a point below or approximately level with the bottom of the pump, if possible. This will produce a siphoning effect which will improve efficiency of the pump.
6. If it is not possible to slope the discharge line down, make an inverted “U” trap directly above the pump at the highest point.

A diagram illustrates the piping connections with numbered points indicating the flow and components.

Electrical Connections

• Connect the power cord to a constant source of power matching the pump nameplate voltage.
• The pump should be connected or wired to its own circuit, with no other electric receptacles or equipment in the circuit. Do not connect to a fan or any device that runs intermittently.
• The fuses or circuit breaker should be of ample capacity.
• Connect to a circuit equipped with a ground fault circuit interrupter (GFCI) if required by code.
• Some models are supplied with a stripped wire cord end. Power connections must be made within a junction box, and must comply with the National Electrical Code. Wires are color coded as follows:
  • Green/yellow = Ground; Brown = Line; Blue = Line (230 V) or Neutral (115 V)

IMPORTANT: If the power cord is damaged, the whole unit must be replaced.

High Water Level Switch Connection

A diagram shows the high water level switch with numbered terminals and wiring leads.

Wiring Diagram Key:

• 1. High Water Level Switch
• 2. NO terminal. Connect here to shut off the condensing unit of the heating/cooling system.
• 3. NC terminal. Connect here to activate an external alarm or relay.
• 4. High Water Level Switch wiring leads
• 5. Switch housing tabs
• 6. Hinge tab
• 7. Switch Mounting Ribs. When installing switch, make sure it is positioned between these ribs.
• 8. Thermostat
• 9. Air Conditioner/Furnace

There are two options for connecting the high level switch:

1. The switch is factory wired to the NO and COM terminals. This configuration will open (break) an electrical circuit when the switch is activated by a high water level in the reservoir, which can be used to stop the condensing unit(s) of the heating/cooling system.
   • Refer to the thermostat and heating/cooling unit's Operating Manual for expected switch operation and wiring connections. Connect the switch leads (4) in series with the low voltage thermostat circuit as specified in the heating/cooling unit's operating manual.
2. The installer can reconfigure this switch to the NC terminal to close a low voltage circuit in the event of high water level, which could activate an external alarm or relay (purchased separately). Use the following procedure if an NC configuration is required:
   • Squeeze the High Level Switch housing tabs at (5).
   • Rotate the housing upwards at hinge tab (6); or, remove the housing completely by lifting the housing hinge tab out of the slot.
   • Support the switch and carefully change the lead wire from the NO terminal to the NC terminal (3).
   • Return the Switch housing back to the switch base.
   • Squeeze the tabs together at (5) and insert into the switch base between ribs (7).
   • Connect the switch leads in series with the low voltage external component as specified in the component's manual.

Place the “Attention Service Technician” label included with the pump on the outside of the access panel in a visible location.

Operation Testing

1. Turn on power to the pump.
2. Test pump operating switch by pressing lightly on the external test/run lever to start the motor.
3. Test high level switch by raising high level switch float.
   • If wired to NO terminal, air handling device should shut down when float is raised.
   • If wired to NC terminal, external component (alarm or relay) should activate when float is raised.

A diagram shows a float switch being raised.

MAINTENANCE

1. Disconnect the pump from the power source.
2. Remove the ¼ turn check valve. Inspect the check valve and clean with warm water and mild soap if necessary.
3. Remove tank assembly from the pump by squeezing the reservoir at places indicated to release the latch.
   • Place a finger in one of the larger holes in the corner of the top and lift to remove the top part of the pump. The top hinges on the opposite end of the tank.
4. Be sure the floats move freely. Clean as necessary.
5. Clean the tank with warm water and mild soap.
6. Flush tank with fresh water. This helps to ensure that residual condensate does not create localized pockets of acid that could cause pitting.
7. Check inlet and outlet piping. Clean as necessary. Be sure there are no kinks in the line that would inhibit flow.
8. Replace the tank assembly to the pump.
9. Replace inlet and outlet piping.
   • Fully insert the check valve into the discharge line, ensuring that the O-ring and discharge line are free of debris.
   • Insert the check valve into the pump discharge hole and twist it by hand ¼ turn.
   • Check to ensure that the check valve is securely locked into position.
10. Test operation of the system.

A diagram shows the process of removing the tank assembly and cleaning the check valve.

Troubleshooting