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Lennox 18K77 3-Speed Motor 1/5 HP 208-230V 1075 RPM

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Special Price $363.66 Regular Price $606.95
In stock
SKU
18K77
The Lennox 18K77 3-Speed Motor is a durable part suitable for HVAC systems, it has 1/5 HP and can work in 3 speeds with Rotation speed 1075 RPM. The PSC design makes it efficient and durable, and its capacitor ensures that it will have a long duration. This motor has a frame size of 48 and is horizontally mountable with the help of Torsion Flex Bracket, and it is suitable for many HVAC applications. Its voltage range is 208-230V and it operates in single phase thus it can be used in residential and commercial places. The motor has a 0.5 x 3-Inch shaft which makes easy integration with the circuit board and a 7.5µF 370VAC capacitor.
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Specifications

  • Measure: Units
  • Power: 1/5 HP
  • Shaft Length: 3.3 Inch
  • Motor Type: PSC
  • Speed: 1075 RPM
  • Number of Speeds: 3
  • Frame Size: 48
  • Motor Mounting Position: Horizontal
  • Motor Mounting Type: Torsion Flex Bracket
  • Voltage: 208-230V
  • Phase: 1
  • Frequency: 60 Hz
  • Shaft Size: 0.5 x 3 Inch
  • Capacitor Value: 7.5µF 370VAC
  • Rotation: CCW
  • Bearing Type: Sleeve
  • Size: 15.5 x 11.1 x 10.8 Inch
  • Weight: 11.53lbs
Manufacturer Name: Lennox
Product Number: 18K77
OEM Part Number: 18K77
Product Description: 1/5Hp 208-230V 3Sp 1075Rpm Mtr
Weight:11.53lbs/5229.92g

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Product Questions (2)
Customer Questions
What maintenance is required for the Lennox 18K77 Motor?

Regularly inspect the motor for dust buildup and clean the housing to ensure proper airflow. Lubricate bearings if applicable to reduce friction and wear. Check electrical connections for tightness and signs of overheating. regular maintenance can maintain efficiency and prevents unexpected motor failure.

What are common issues with the Lennox 18K77 Motor?

  • Motor overheating due to restricted airflow or overload conditions.
  • Irregular speed operation or failure to switch speeds properly.
  • Electrical connection faults causing intermittent operation.
  • Excessive vibration or noise from worn bearings or imbalance.

Installation Steps

Step 1: Turn off power and verify voltage for safety.

Step 2: Remove old motor and note wiring connections.

Step 3: Mount new motor securely and align shaft.

Step 4: Reconnect wiring per diagram ensuring tight terminals.

Step 5: Restore power and test operation at all speeds check for noise or overheating.