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Lennox

OEM Lennox Scroll Compressor 36,900 BTUH R-22 3PH — 34W55

SKU: LNX-34W55 Brand: Lennox
$389.95 $529.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox 34W55 is a ZR36K3-TFD-830 scroll compressor rated at 36,900 BTUH, built for 460V three-phase systems running R-22 refrigerant. This compressor is the primary workhorse of your commercial or heavy-duty outdoor unit, compressing and circulating refrigerant to enable the cooling cycle across your Lennox equipment. The three-phase scroll design delivers robust, balanced, and energy-efficient performance for demanding applications.

Common failure symptoms: A failing compressor may cause loss of cooling, breaker trips or overload faults on startup, loud grinding or rattling, overheating at the condensing unit, or a unit that hums without turning over. Motor winding failure or internal mechanical damage typically requires full replacement.

Why OEM matters: The factory Lennox 34W55 ensures the exact 460V three-phase electrical characteristics, capacity, and mounting your system was designed for. Three-phase equipment is unforgiving of mismatched components, so an OEM compressor protects proper phase rotation, charge balance, and rated efficiency. Genuine Lennox parts help maintain reliability and any remaining warranty coverage.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Compressor fit my Lennox OEM Lennox Scroll Compressor 36,900 BTUH R-22 3PH — 34W55?
Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Scroll Compressor 36,900 BTUH R-22 3PH — 34W55. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the compressor on my Lennox OEM Lennox Scroll Compressor 36,900 BTUH R-22 3PH — 34W55?
Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.
What symptoms mean I need a new compressor?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this compressor compatible with Bryant or Payne too?
Many Lennox parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Lennox compressor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
HVAC Parts Specialist — Online