Introduction
This manual provides essential instructions for the proper installation, operation, and maintenance of your VIAIR 90223 Pressure Switch. This device is designed to automatically control the operation of an air compressor by turning it on and off at pre-set pressure levels, ensuring efficient and safe system performance. Please read this manual thoroughly before installation and use.
Image: The VIAIR 90223 Pressure Switch, featuring a green activation cap, a black body, and two black wire leads. This is the primary view of the product.
Setup and Installation
Proper installation is crucial for the reliable operation of the pressure switch. Follow these steps carefully:
- Mounting: The pressure switch features a 1/8" NPT male port. Thread the switch into a compatible female NPT port on your air tank or manifold. Ensure a tight, leak-free seal using appropriate thread sealant (e.g., PTFE tape or liquid sealant) if necessary. Do not overtighten.
- Electrical Connection: The switch is equipped with 12 gauge wire leads. Connect these leads into your compressor's control circuit. VIAIR recommends using this pressure switch in conjunction with a relay to handle the compressor's current draw, protecting the switch from excessive electrical load. Refer to your compressor's wiring diagram for specific relay integration instructions.
- Power Requirements: This switch is designed for 12 Volts (DC) systems and has a current rating of 30 Amps. Ensure your electrical system meets these requirements.
Image: A close-up view of the VIAIR 90223 Pressure Switch label, clearly displaying "Part No. 90223", "90 PSI ON", "120 PSI OFF", and "30 Amp". This label provides key operational specifications.
Operating Instructions
The VIAIR 90223 Pressure Switch operates automatically to maintain desired air pressure within your system:
- When the air pressure in the system drops to 90 PSI, the pressure switch will automatically activate (turn on) the connected air compressor.
- The compressor will continue to run until the system pressure reaches 120 PSI, at which point the pressure switch will automatically deactivate (turn off) the compressor.
- This cycle repeats as needed to maintain pressure within the specified range.
This automatic operation ensures that your air system is always ready for use without constant manual monitoring.
Maintenance
The VIAIR 90223 Pressure Switch is a sealed unit designed for long-term, maintenance-free operation. However, periodic inspection is recommended:
- Visual Inspection: Regularly check the switch and its connections for any signs of damage, corrosion, or loose wiring.
- Leak Detection: Periodically check the NPT connection for air leaks, which can lead to excessive compressor cycling.
- Functionality Check: Verify that the compressor turns on and off within the specified 90 PSI ON and 120 PSI OFF pressure range.
If any issues are detected, consult the troubleshooting section or contact VIAIR customer support.
Troubleshooting
If you encounter problems with your VIAIR 90223 Pressure Switch, consider the following:
- Compressor Not Turning On:
- Check all electrical connections for tightness and proper wiring.
- Verify that power is supplied to the switch and compressor.
- Ensure the system pressure is below 90 PSI.
- If a relay is used, check the relay's functionality.
- Compressor Not Turning Off:
- Ensure the system pressure has reached 120 PSI.
- Inspect the switch for any physical damage or debris that might prevent it from disengaging.
- A stuck-closed switch can cause continuous compressor operation; this may indicate a need for replacement.
- Inconsistent Operation:
- Check for air leaks in the system, which can cause rapid cycling.
- Verify stable voltage supply to the switch.
If troubleshooting steps do not resolve the issue, professional assistance may be required.
Specifications
| Feature | Specification |
|---|---|
| Model Number | 90223 |
| Brand | VIAIR |
| Pressure ON | 90 PSI |
| Pressure OFF | 120 PSI |
| Port Size | 1/8" NPT (Male) |
| Wire Gauge | 12 Gauge Leads |
| Operation Mode | ON-OFF (Automatic) |
| Current Rating | 30 Amps |
| Operating Voltage | 12 Volts (DC) |
| Contact Type | Normally Open |
| Connector Type | Crimp (Wire Leads) |
| Circuit Type | 1-way |
| Contact Material | Nickel |
| Product Dimensions | 2 x 1 x 1 inches; 1.6 ounces |
Image: A diagram illustrating the approximate dimensions of the pressure switch, indicating a length of 6.6 inches (16 cm).
Warranty and Support
For detailed warranty information, product registration, and technical support, please visit the official VIAIR website or contact their customer service department. Keep your purchase receipt for warranty claims.
VIAIR Official Website: www.viaircorp.com
