Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your BA20267-2 - OEM Upgraded Replacement for Comfort Maker Pressure Switch. Please read this manual thoroughly before use to ensure safe and efficient operation.
The BA20267-2 Pressure Switch is a brand new OEM pressure switch, designed as a top-quality replacement part. It is rated at .30" WC.
Figure 1: OEM Upgraded Replacement for Comfort Maker Pressure Switch. This image shows the pressure switch from a slightly elevated angle, highlighting its main body, two hose connections, and a metal mounting bracket. The top part of the switch is black with a white label containing a barcode and text. The lower part is light gray.
Safety Information
Always disconnect power before installing or servicing this device. Installation should be performed by a qualified technician. Failure to follow these instructions could result in property damage, injury, or death.
- Ensure all local and national electrical codes are followed.
- Do not exceed the rated specifications of the switch.
- Keep children and unauthorized personnel away from the installation area.
Setup and Installation
This pressure switch is designed as a direct OEM replacement. Follow the specific installation instructions provided by the manufacturer of your HVAC system.
- Power Disconnection: Before beginning any work, ensure the power supply to the HVAC unit is completely disconnected at the circuit breaker or fuse box. Verify with a voltage tester.
- Locate Existing Switch: Identify the existing pressure switch on your Comfort Maker HVAC system. Note its orientation and connections.
- Disconnect Hoses and Wiring: Carefully disconnect the rubber or silicone hoses from the existing switch's ports. Then, disconnect the electrical wiring from the screw terminals. Take a photo if necessary to remember the connections.
- Remove Old Switch: Unscrew or unclip the old pressure switch from its mounting bracket.
- Install New Switch: Mount the new BA20267-2 pressure switch in the same location and orientation as the old one. Secure it firmly using the existing screws or clips.
- Reconnect Hoses and Wiring: Reconnect the hoses to the appropriate ports on the new switch. Ensure a snug fit to prevent leaks. Reconnect the electrical wiring to the screw terminals, matching the original configuration.
- Verify Connections: Double-check all hose and electrical connections to ensure they are secure and correct.
- Restore Power: Once installation is complete and verified, restore power to the HVAC unit.
For detailed diagrams, refer to your specific HVAC system's service manual.
Operating Instructions
The BA20267-2 pressure switch operates automatically as part of your HVAC system's safety and control circuit. It is designed to monitor the pressure within the system (e.g., draft inducer motor pressure) and ensure safe operation.
- When the HVAC system initiates a cycle (e.g., furnace ignition), the pressure switch will close its contacts if the correct pressure differential is detected.
- If the pressure is not within the specified range (e.g., due to a blocked vent or faulty inducer motor), the switch will remain open, preventing the system from operating and indicating a fault.
- This switch is rated at .30" WC, meaning it will activate when the pressure reaches this threshold.
No user intervention is required for the operation of the pressure switch itself, as it functions as an automatic safety device.
Maintenance
The BA20267-2 pressure switch is a sealed component and generally requires no routine maintenance. However, regular inspection of the associated components is recommended.
- Hose Inspection: Periodically check the rubber or silicone hoses connected to the pressure switch for cracks, kinks, or blockages. Ensure they are securely attached.
- Port Cleaning: Ensure the ports on the pressure switch and the corresponding ports on the HVAC component (e.g., draft inducer) are free from debris or condensation.
- Wiring Inspection: Verify that the electrical connections to the switch are clean, tight, and free from corrosion.
If the switch appears damaged or shows signs of wear, it should be replaced by a qualified technician.
Troubleshooting
If your HVAC system is experiencing issues related to the pressure switch, consider the following troubleshooting steps. Always disconnect power before inspecting components.
| Symptom | Possible Cause | Solution |
|---|---|---|
| Furnace/HVAC unit not starting, error code related to pressure switch. |
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| Intermittent operation or cycling. |
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If troubleshooting steps do not resolve the issue, it is recommended to contact a certified HVAC technician for diagnosis and repair.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | BA20267-2 |
| Brand | OEM Rplm for Comfort Maker |
| Manufacturer | Comfort Maker |
| Product Dimensions | 8 x 4 x 8 inches; 8 ounces |
| Operation Mode | Automatic |
| Contact Type | Normally Closed |
| Connector Type | Screw Terminals |
| Terminal Type | Screw |
| Circuit Type | 1-way |
| Actuator Type | Diaphragm/Piston |
| Contact Material | Brass |
| International Protection Rating | IP00 |
| Rated Pressure | .30" WC |
Warranty Information
Specific warranty details for this OEM replacement part are typically provided by the seller or the original equipment manufacturer. Please refer to your purchase documentation or contact the seller for warranty terms and conditions.
As a general guideline, OEM replacement parts often carry a limited warranty against manufacturing defects. Keep your proof of purchase for any warranty claims.
Support and Contact
For technical assistance or support regarding the BA20267-2 pressure switch, please contact the vendor from whom you purchased the product. They can provide guidance specific to your purchase and any applicable support services.
For general inquiries about Comfort Maker products, you may visit the official Comfort Maker website or consult their customer service resources.