Two Speed Swamp Cooler Motor Wiring

Red low.

Two speed swamp cooler motor wiring.

Swamp cooler wiring color codes. When voltage is applied to the high side the windings in the motor will turn it faster. Since a two speed motor relies on different coils to produce different speeds there are usually two input wires. It s built for reliable long life performance.

Fix the connecting nuts with the wire pliers. Both of these simply plug into the wall and utilize the provided switch on the front of the discharge grille. If there is a hole blank in the panel remove it with the screwdriver and or the pliers. If your swamp cooler only has one fan speed wire the fan to terminal 1 the black wire operates the motor s high speed.

In many instances the low and high speed coils share an external wire. A six position rotary switch has a position for off low speed fan high speed fan low speed fan with pump high speed fan with pump and pump only. Motor on the old one and the new one. Additionally the low speed coil is typically supplied by a red wire while the high speed coil is fed by a black wire.

Then plug the box connector in the hole. Here is a swamp cooler blower motor with the leads for hi low and common labeled h l and c. Take the romex cable and guide it from the electric makeup box of the swamp cooler to the electric panel box with the breakers. Hi on these evaporative water coolers you would have to take a look at you may have had a 1 2 h p.

Solder all connections and use a shrink wrap insulation kit to seal the connections. A two speed motor will typically be prefitted with four short wires which must be connected to the swamp cooler control circuit and the 120 volt circuit. When voltage is applied to the low side the windings in the motor it will turn the motor slower. The swamp cooler wiring pictured and explained here is unnecessary if you are installing a window mount cooler or a sidedraft style window cooler.

2 speed 3 4 hp evaporative cooler motor the dial 3 4 hp evaporative cooler motor the dial 3 4 hp evaporative cooler motor is built for reliable performance in 115 volt evaporative coolers. The durable steel motor can be used in a new cooler or as a replacement motor for an existing unit.