Trane BAYHALT249 Pressure Kit
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Trane BAYHALT249 Pressure Kit

Trane BAYHALT249 Pressure Kit

The Trane BAYHALT249 High Altitude Pressure Kit is a field-installed safety component designed for 80% gas furnaces operating at elevations exceeding 4,000 feet. At higher altitudes, lower air density results in insufficient negative pressure from the induced draft blower, which can lead to nuisance lockouts and improper combustion. This OEM pressure switch kit replaces the sea-level calibrated switch with a component specifically tuned for thin air performance, ensuring the pressure switch circuit closes correctly to verify safe venting before the gas valve opens.

This kit is specifically engineered for two-stage gas furnaces produced after May 2001, featuring the updated plastic housing with sealed switch contacts to prevent contamination from job site dust and debris. The BAYHALT249 is critical for maintaining the correct manifold pressure and burner input rates in mountainous regions, preventing the dangerous production of carbon monoxide and ensuring system reliability. Technicians must verify furnace model compatibility—including TUD-R-K, TDD-R-F, TUD-R9V-K, and TDD-R9V-F series—prior to installation to ensure precise cut-in and cut-out pressure alignment.

Key Benefits
  • Prevents Nuisance Lockouts: Specifically calibrated to ensure the inducer motor generates enough vacuum to close the circuit in low-density air.
  • Enhanced Reliability: The plastic switch body features sealed contacts, protecting against airborne contaminants that cause contact failure.
  • Ensures Combustion Safety: Guards against incomplete combustion and carbon monoxide production by verifying proper drafting at altitude.
  • Simplified Serviceability: Features a single hose connection for faster field replacement and improved lead routing within the vestibule.
Common Questions

At what elevation is the BAYHALT249 required?
Standard sea-level switches often fail to close above 4,000 feet; this kit is typically required for any installation between 4,000 and 10,000 feet, depending on the specific furnace manual specifications.

Can I use this switch in a sea-level application?
No, high-altitude calibrated pressure switches must never be used at sea level. Doing so can allow the furnace to operate with restricted venting or insufficient combustion air, creating a safety hazard.

Is field adjustment of the pressure setting possible?
These switches are factory calibrated and sealed. Technicians should never attempt to adjust the pressure setting in the field, as breaking the factory seal compromises the safety integrity of the component.

This item is not eligible for free shipping.

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.

$43.20

Original: $123.44

-65%
Trane BAYHALT249 Pressure Kit

$123.44

$43.20

Trane BAYHALT249 Pressure Kit

The Trane BAYHALT249 High Altitude Pressure Kit is a field-installed safety component designed for 80% gas furnaces operating at elevations exceeding 4,000 feet. At higher altitudes, lower air density results in insufficient negative pressure from the induced draft blower, which can lead to nuisance lockouts and improper combustion. This OEM pressure switch kit replaces the sea-level calibrated switch with a component specifically tuned for thin air performance, ensuring the pressure switch circuit closes correctly to verify safe venting before the gas valve opens.

This kit is specifically engineered for two-stage gas furnaces produced after May 2001, featuring the updated plastic housing with sealed switch contacts to prevent contamination from job site dust and debris. The BAYHALT249 is critical for maintaining the correct manifold pressure and burner input rates in mountainous regions, preventing the dangerous production of carbon monoxide and ensuring system reliability. Technicians must verify furnace model compatibility—including TUD-R-K, TDD-R-F, TUD-R9V-K, and TDD-R9V-F series—prior to installation to ensure precise cut-in and cut-out pressure alignment.

Key Benefits
  • Prevents Nuisance Lockouts: Specifically calibrated to ensure the inducer motor generates enough vacuum to close the circuit in low-density air.
  • Enhanced Reliability: The plastic switch body features sealed contacts, protecting against airborne contaminants that cause contact failure.
  • Ensures Combustion Safety: Guards against incomplete combustion and carbon monoxide production by verifying proper drafting at altitude.
  • Simplified Serviceability: Features a single hose connection for faster field replacement and improved lead routing within the vestibule.
Common Questions

At what elevation is the BAYHALT249 required?
Standard sea-level switches often fail to close above 4,000 feet; this kit is typically required for any installation between 4,000 and 10,000 feet, depending on the specific furnace manual specifications.

Can I use this switch in a sea-level application?
No, high-altitude calibrated pressure switches must never be used at sea level. Doing so can allow the furnace to operate with restricted venting or insufficient combustion air, creating a safety hazard.

Is field adjustment of the pressure setting possible?
These switches are factory calibrated and sealed. Technicians should never attempt to adjust the pressure setting in the field, as breaking the factory seal compromises the safety integrity of the component.

This item is not eligible for free shipping.

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.

Product Information

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Description

The Trane BAYHALT249 High Altitude Pressure Kit is a field-installed safety component designed for 80% gas furnaces operating at elevations exceeding 4,000 feet. At higher altitudes, lower air density results in insufficient negative pressure from the induced draft blower, which can lead to nuisance lockouts and improper combustion. This OEM pressure switch kit replaces the sea-level calibrated switch with a component specifically tuned for thin air performance, ensuring the pressure switch circuit closes correctly to verify safe venting before the gas valve opens.

This kit is specifically engineered for two-stage gas furnaces produced after May 2001, featuring the updated plastic housing with sealed switch contacts to prevent contamination from job site dust and debris. The BAYHALT249 is critical for maintaining the correct manifold pressure and burner input rates in mountainous regions, preventing the dangerous production of carbon monoxide and ensuring system reliability. Technicians must verify furnace model compatibility—including TUD-R-K, TDD-R-F, TUD-R9V-K, and TDD-R9V-F series—prior to installation to ensure precise cut-in and cut-out pressure alignment.

Key Benefits
  • Prevents Nuisance Lockouts: Specifically calibrated to ensure the inducer motor generates enough vacuum to close the circuit in low-density air.
  • Enhanced Reliability: The plastic switch body features sealed contacts, protecting against airborne contaminants that cause contact failure.
  • Ensures Combustion Safety: Guards against incomplete combustion and carbon monoxide production by verifying proper drafting at altitude.
  • Simplified Serviceability: Features a single hose connection for faster field replacement and improved lead routing within the vestibule.
Common Questions

At what elevation is the BAYHALT249 required?
Standard sea-level switches often fail to close above 4,000 feet; this kit is typically required for any installation between 4,000 and 10,000 feet, depending on the specific furnace manual specifications.

Can I use this switch in a sea-level application?
No, high-altitude calibrated pressure switches must never be used at sea level. Doing so can allow the furnace to operate with restricted venting or insufficient combustion air, creating a safety hazard.

Is field adjustment of the pressure setting possible?
These switches are factory calibrated and sealed. Technicians should never attempt to adjust the pressure setting in the field, as breaking the factory seal compromises the safety integrity of the component.

This item is not eligible for free shipping.

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.

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