A: Mine came with a power cord and a standard 3 prong plug that plugs directly into an outlet mounted on the furnace. The furnace does not control the pump - it has its own float switch. I have no idea what the two additional wires might be for but this pump (at least mine) didn't have them and doesn't need them
A: The “S” in your model number indicates that your pump has a safety switch. A safety switch is what is referred to as a set of dry contacts; which is a fancy way of saying it is an unpowered switch. These are most likely the two wires you mention, that go to your furnace. If and when the pump fails, you don’t want the pump to overflow causing water damage. To prevent this producers of condensate pumps and HVAC equipment collaborated. The pump people began offering pumps with unpowered high water switches built into them and producers of equipment began producing equipment that could take advantage of these switches. They built into the equipment the ability to power this switch circuit and to allow the switch to shut off the unit if the condensate level in the pump got so high that it ran the risk of overflowing. For pumps that have this switch, sometimes it is used and sometimes not. Because the switch is unpowered when not hooked to an accomidating appliance the wires are often just left sitting unused. Assuming your current system utilizes this switch and it offers benefit you may want to consider a replacement pump that also has a safety switch. For example Little Giant model number VCMA-20ULS. As to your other question, Yes these pumps come with a cord. I have no good explanation as to why Little Giant crops it out of all their pictures other that they sell pumps all over the world and that different plugs are used in different countries. It causes a lot of confusion and I apologize for that. If you scroll down the Home Depot product listing page you will come to a section entitled Product Resources. There you will find PDF’s of the product documents. If you open the specification sheet you will find it references the 6’ cord. The other documents give more detail on the safety switch.
A: Yes 12 Months here is their site https://images.thdstatic.com/catalog/pdfImages/84/8456fed1-f47c-46ae-a472-ccc6016cbd3b.pdf
A: Yes there is and a PDF of the complete warranty is posted on the Home Depot product listing page. You will find it in the product details section under Additional Resources. It state the following. Your product is guaranteed to be in perfect condition when it leaves our factory. It is warranted against defective materials and workmanship for a period of 12 months from date of purchase by the user. Any product that should fail for either of the above two reasons and is still within the warranty period will be repaired or replaced at the option of Little Giant as the sole remedy of buyer. For our customers in the CONTINENTAL UNITED STATES: Please return the defective unit, postage paid, to the factory at 301 North MacArthur Blvd., Oklahoma City, OK 73127-6616. All defective product returned under warranty will be fully inspected to determine the cause of failure before warranty is approved. For our customers located elsewhere; it is not economical, due to duties and freight, to return the pump to the factory for inspection. Please return the defective unit to any authorized distributor or dealer with a brief written explanation of the problem. If there are no apparent signs of customer abuse, unit will be repaired or replaced. If dispute arises over replacement of the pump, the distributor or dealer is to segregate such items and hold for inspection by a representative of Franklin Electric Co., Inc. or notify factory with details of the problem for factory disposition and settlement of warranty claim
A: No I would not consider it overkill. In fact it might not be large enough. Sizing a condensate pump has more to do with the height you are lifting the water than it does to the size of the AC unit; although the size of the AC unit does play a roll. All pumps are rated on a graph called a pump curve. On one axis you have height and on the other flow rate. The curve illustrates pump performance across its range. If you scroll down the Home Depot product listing page you will come to a section entitled “Additional Resources”. Here you will find PDF’s of the product documents. If you open the one labeled specification you will find it contains the pump curve on the second page. It shows that if the pump is pumping horizontally to one foot vertically it can move 65 gallons per hour. If the application requires it to lift the water 8’ vertically it will pump 35 gallons per hour. And if asked to lift the water 15’ vertically the pump will dead head. Meaning it will lift the water the 15 feet but there will be no flow. The correct way to size a pump is to first calculate the total height of the lift vertically. The distance horizontally really does not matter. Once you know the height, which we call the head, then select a pump that can move the appropriate amount of fluid at that height; based on the pump curve. My point, if you need to lift the condensate more than 10’ up, this pump would not be powerful enough.
A: Yes you can. Mine is wired into the on/off switch on my furnace. My suggestion is to put the outlet that you are adding on the same side of the furnace as the pump. It just makes it easier to access when you clean / change the pump. Get an electrician to wire it up for you. They will make sure that all the connections are correct and the right gauge of wire is used.
A: If it can be avoided, I would not. That switch is a safety device and should remain isolated. If absolutely necessary you could add an outlet before the switch provided the circuit can support the load.
A: I am sorry I cannot give you a definitive answer to that as I am unfamiliar with your furnace or its installation.
A: Ours was wired to the on/off switch. We just had to replace the pump.
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|Brand||Little Giant||Little Giant||Little Giant||Everbilt|
|Name||VCMA-15UL 115-Volt Automatic Condensate Removal Pump||VCMA-15ULST 115-Volt Condensate Removal Pump||Nextgen VCMX-20ULS 115-Volt Condensate Removal Pump||120-Volt Condensate Pump w/ Hose|
|Impeller Material||Glass filled polypropylene||Glass filled polypropylene||Polypropylene||Plastic|
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