Raypak 007158F Pressure Switch

The Raypak 007158F Pressure Switch is a critical safety component designed for precise combustion air monitoring in high-efficiency boilers and water heaters. Engineered with a normally closed (N/C) configuration and a fixed set point of .40" WC (water column), this vent pressure switch ensures that the blower is moving sufficient air to exhaust flue gases before ignition occurs. This particular kit—identified by Part Number 007158F and often cross-referenced as 500-100-Kit or IS20360-5458—is a direct replacement for failing differential pressure sensors that cause common ignition lockout codes. For technicians working on Raypak Hi-Delta, Raytherm, or MVB series units, maintaining the correct 0.40 in-wc air pressure threshold is essential for prevent hazardous CO buildup and ensuring reliable operation during the pre-purge cycle. The SPDT electrical switch provides robust continuity, allowing the control board to verify draft status with high accuracy in demanding commercial and residential HVACR environments.

• Precise 0.40" WC Trip Point: Calibrated to detect exact airflow requirements for safe venting and combustion.
• Direct OEM Replacement: Replaces legacy Raypak air pressure switches, providing a seamless fit for Hi-Delta and MVB heater models.
• Enhanced HVAC Safety: Acts as a failsafe to halt the firing sequence if vent blockages or blower failures are detected.
• Qualified Component Design: Built for high-frequency cycling in high-demand heating systems.

What are the symptoms of a faulty Raypak 007158F switch?
Common indicators include the heater failing to spark or ignite, with diagnostic codes pointing to a "Vent Switch Open" or "Airflow Fault" even when the blower is running.

Can I use a switch with a different "WC rating?
No. Utilizing a switch with a higher or lower water column rating than .40" WC can lead to dangerous operational conditions or frequent nuisance trips. Always match the OEM specification for your specific Raypak model.

Is this switch compatible with positive and negative pressure systems?
Yes, this dual-hose pressure switch can be configured for various Raypak appliances to monitor the differential pressure required for the specific venting arrangement.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.