1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the ICP/Heil 1052820 (Emerson K55HXJZW-3138) Condenser Fan Motor. This motor is designed for use in condenser fan applications, featuring a 1/4 HP rating, 840 RPM speed, and a 3-wire plug for electrical connection. Please read this manual thoroughly before attempting any installation or operation.
Figure 1: ICP/HEIL 1052820 Condenser Fan Motor. This image shows a black cylindrical motor with a silver end plate and a central shaft extending outwards. Several yellow and brown wires are visible, emerging from the motor body.
2. Important Safety Instructions
Failure to follow these safety instructions may result in electric shock, fire, or serious injury. Always observe local electrical codes and regulations.
- Professional Installation Recommended: Installation and servicing should only be performed by qualified and licensed HVAC technicians or electricians.
- Disconnect Power: Always disconnect power to the unit before installing, servicing, or performing any maintenance on the motor. Verify power is off using a voltage meter.
- Proper Grounding: Ensure the motor and the system it is connected to are properly grounded to prevent electrical shock.
- Wiring: Follow all wiring diagrams and instructions provided with the HVAC unit and this motor. Incorrect wiring can cause damage or fire.
- Moving Parts: Keep hands, tools, and clothing clear of the motor shaft and fan blades when the unit is powered.
- Environmental Conditions: Do not expose the motor to excessive moisture or extreme temperatures outside its specified operating range.
3. Setup and Installation
This section outlines the general steps for installing the condenser fan motor. Refer to your specific HVAC unit's service manual for detailed instructions and diagrams.
- Power Disconnection: Ensure all power to the outdoor condenser unit is completely disconnected at the breaker panel.
- Access: Remove the top panel or grille of the condenser unit to access the existing fan motor.
- Old Motor Removal:
- Carefully disconnect the fan blade from the old motor shaft. Note the orientation of the fan blade for correct reinstallation.
- Disconnect the electrical wiring from the old motor, noting the color coding and connections.
- Unmount the old motor from its bracket or mounting studs.
- New Motor Installation:
- Mount the new ICP/Heil 1052820 motor onto the existing mounting studs or bracket. Ensure it is securely fastened.
- Connect the fan blade to the new motor shaft (5/8" diameter, 2" length). Ensure the fan blade is properly seated and secured, maintaining the correct orientation for airflow (typically pushing air upwards).
- Connect the 3-wire plug of the new motor to the corresponding electrical connections in the condenser unit. This motor has a CW (Clockwise) rotation. Verify wiring against the unit's diagram.
- Reassembly: Replace the condenser unit's top panel or grille, ensuring all fasteners are secure.
- Power Restoration and Test: Restore power to the unit and test the fan motor operation. Observe for proper rotation, unusual noises, or vibrations.
4. Operation
The ICP/Heil 1052820 Condenser Fan Motor is designed for continuous operation within a compatible HVAC system. Once properly installed and wired, the motor will activate when the condenser unit calls for cooling, driving the fan blade to dissipate heat from the refrigerant coils.
- Automatic Operation: The motor's operation is controlled by the thermostat and the HVAC system's control board. It will start and stop automatically as cooling is required.
- Single Speed: This motor operates at a single speed of 840 RPM. It is important to ensure this speed is compatible with your system's requirements.
- Rotation: The motor is designed for Clockwise (CW) rotation when viewed from the shaft end. Verify correct fan blade rotation during initial startup.
5. Maintenance
Regular maintenance helps ensure the longevity and efficient operation of your condenser fan motor. Always disconnect power before performing any maintenance.
- Annual Inspection: Have a qualified technician inspect the motor and fan assembly annually, typically before the cooling season.
- Cleaning: Keep the motor and fan blades free of dirt, dust, and debris. Accumulated grime can reduce efficiency and cause overheating. Use a soft brush or compressed air for cleaning.
- Shaft and Bearings: Check for any signs of wear on the motor shaft or excessive play in the bearings. This motor is typically sealed and does not require lubrication.
- Wiring Connections: Inspect electrical connections for tightness and signs of corrosion or damage.
- Vibration Check: Listen for unusual noises or vibrations during operation, which could indicate a problem with the motor or fan blade balance.
6. Troubleshooting
This section provides guidance for common issues. For complex problems, contact a qualified HVAC technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not start | No power to unit; Faulty wiring; Motor capacitor failure; Motor seized. | Check circuit breaker; Verify wiring connections; Test/replace capacitor; Replace motor if seized. |
| Motor runs, but fan does not spin | Fan blade loose on shaft; Fan blade obstructed. | Tighten set screw on fan blade; Clear any obstructions. |
| Motor makes unusual noise or vibrates | Loose mounting; Worn bearings; Unbalanced fan blade; Debris in fan. | Tighten mounting bolts; Inspect bearings (replace motor if worn); Clean fan blade; Balance fan blade. |
| Motor overheats and shuts off | Insufficient airflow; Overload; Incorrect voltage; Worn bearings. | Clean coils/fan; Check for proper fan rotation/size; Verify voltage; Replace motor if bearings are worn. |
| Motor speed discrepancy (e.g., expecting 2-speed) | This specific model (1052820) is rated for 840 RPM, indicating a single-speed operation. Your previous motor might have been a multi-speed model. | Verify compatibility with your HVAC system's requirements. If a multi-speed motor is required, this model may not be suitable. Consult your HVAC technician. |
7. Specifications
Technical specifications for the ICP/Heil 1052820 (Emerson K55HXJZW-3138) Condenser Fan Motor:
- Model: 1052820 (Emerson K55HXJZW-3138)
- Type: Condenser Fan Motor
- Horsepower (HP): 0.25 hp (1/4 HP)
- Speed: 840 RPM
- Amperage: 1.4 Amps
- Rotation: CW (Clockwise)
- Frame Size: 48 Frame
- Shaft Dimensions: 5/8 inch diameter x 2 inch length
- Wiring: 3-wire plug
- Material: Copper
8. Warranty and Support
For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact the manufacturer, ICP DAS, or your authorized dealer directly. Warranty coverage typically applies to defects in materials and workmanship under normal use.
For technical support, troubleshooting assistance beyond this manual, or to inquire about replacement parts, please contact the product manufacturer or your certified HVAC technician. Always provide the full model number (1052820 / K55HXJZW-3138) when seeking support.
