The Zoeller 519-0005 is designed for straightforward installation below your HVAC or refrigeration equipment's condensate drain and arrives ready to connect. Installation by a qualified HVAC technician or licensed electrician is recommended to ensure proper drainage, discharge routing, and electrical and safety switch connections.
Key Installation Requirements:
- Mounting location below the evaporator and/or furnace drain
- Grounded, GFCI-protected 115V receptacle within reach of the 6 ft power cord (no extension cords)
- 3/8" ID discharge tubing (not included)
- Hose clamp for the discharge connection (recommended, not included)
- 24V Class II thermostat circuit for the safety switch connection
Important Notes Before Installing the 519-0005:
- Installation must not exceed a maximum of 15 ft of vertical lift.
- Install the pump level within 1/8" across its length, and support drain lines so no weight rests on the reservoir.
- Do not use flexible tubing larger than 3/8" ID, and plug the pump into a constant voltage source, not a device that cycles on and off.
- Local codes may require a condensate neutralizer when the pump is used with a condensing furnace.
- The pump is evaluated for use with water only, and all drain and discharge plumbing must meet local codes.
- Always refer to the official Zoeller 519-0005 Spec Sheet for performance data, dimensions, and compliance information.
Basic Installation Overview:
- Place the pump below the equipment drain, or attach it to a wall or the side of the appliance using the two built-in mounting brackets.
- Cut the end of each drain line at a 45° angle and insert it through an inlet until the tip contacts the bottom of the reservoir, keeping a continuous downward slope for gravity flow.
- Connect the 3/8" ID discharge tubing to the barbed check valve, run it up to the highest point possible (ideally more than 5 ft above the floor), then slope it continuously downward to the main drain. If a downward slope isn't possible, form an inverted "U" at the highest point.
- Wire the safety switch leads into the 24V thermostat circuit so the equipment shuts off if an overflow occurs.
- With the discharge line in place, plug in the pump and pour water through an inlet until it activates.
- Test the safety switch: unplug the pump, run the appliance, and add water until the appliance shuts off. Plug the pump back in; the appliance resets once the tank empties.
For complete step-by-step instructions, download the official Zoeller 519-0005 Installation Instructions (FM3130)
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