Raypak Pressure Switch RP2100 Replacement — Plastic Header 006737F, Direct-Fit Compact

The Raypak RP2100 Pressure Switch with plastic header (part 006737F) is a direct-fit replacement switch designed to monitor draft or pressure changes in Raypak heating equipment.

This compact, factory-compatible pressure switch is sold under Raypak Inc. part number 006737F (catalog 6234-37) and is built to match the electrical and mechanical interfaces of RP2100 series controls. It’s commonly used in hydronic and pool heater applications where a reliable pressure-sensing interlock is required. The plastic header provides an economical, corrosion-resistant mounting point for electrical connections while keeping dimensions small for tight installations.

How does this pressure switch fit into my Raypak system?

The RP2100 pressure switch replaces the original draft/pressure interlock and connects directly to existing tubing and electrical harnesses. It senses vacuum or pressure changes and signals the control board to allow or prevent burner operation, helping ensure the system runs only under correct airflow or pressure conditions.

• Direct-fit replacement for RP2100-series installations
• Compatible with Raypak control boards using the specified electrical terminals
• Plastic header simplifies electrical hookup and resists moisture
• Compact footprint eases installation in confined equipment compartments

What specifications and part references should I verify before ordering?

Confirm Raypak part number 006737F (catalog 6234-37) matches your service manual or the label on the original switch. Verify the mounting style, pressure range, electrical terminal type, and tubing connection match your unit to avoid fitment issues.

• Manufacturer: Raypak Inc., Part Number 006737F
• Catalog reference: 6234-37 for cross-checking parts lists
• Plastic header for electrical connection — check terminal layout
• Match tubing barb size and mounting bracket location to original

How do I install and troubleshoot the RP2100 pressure switch?

Installation typically involves depressurizing the system, swapping the old switch for the new one, reconnecting tubing to the barb, and attaching the electrical leads to the plastic header terminals. If the heater fails to start after installation, inspect tubing for leaks, ensure correct terminal wiring, and confirm the switch is oriented per the service manual.

• Turn power off and follow lockout/tagout procedures before starting
• Replace tubing and secure fittings to prevent vacuum loss
• Verify electrical connections to the plastic header are snug and corrosion-free
• Use a multimeter to check continuity and correct switching action if needed

What maintenance or longevity should I expect from this replacement part?

As a mechanical sensing device, the RP2100 pressure switch can last many years if kept free of debris and moisture intrusion. The plastic header reduces corrosion risk at the electrical interface, but routine inspections and keeping tubing clear will preserve reliable operation.

• Regularly inspect tubing for cracks, blockages, or disconnection
• Keep the switch and surrounding area dry to avoid contamination
• Replace immediately if switching becomes intermittent or fails
• Stock the correct Raypak part number 006737F for fast field swaps

Who is this for: Technicians, HVAC and pool heater service professionals, and knowledgeable DIYers who need a reliable, OEM-compatible pressure/draft switch for Raypak equipment. If your repair calls for Raypak Inc. part number 006737F (catalog 6234-37) and you require a compact switch with a plastic electrical header for corrosion resistance and straightforward installation, this RP2100 replacement is formulated to meet those needs.