Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart

IMAGE COMING SOON

Lennox

OEM Lennox ZR21KA Scroll Compressor 21,000 BTUH R-22 — 89M20

SKU: LNX-89M20 Brand: Lennox
$389.95 $529.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The OEM Lennox 89M20 is a Copeland ZR21KA-PFV-830 scroll compressor rated at 21,000 BTUH, 208/230V, R-22, single-phase. Ideal for smaller-tonnage Lennox condensing units and heat pumps, its scroll design compresses refrigerant with fewer moving parts than a reciprocating compressor, delivering smooth, efficient, and quiet operation.

Common failure symptoms include a unit that runs but no longer cools, a compressor that buzzes or clicks without starting, repeatedly tripped breakers, unusually loud operation, and shutdowns caused by the internal overload protector. A grounded winding, seized scroll set, or failure to build head pressure are clear signs the compressor needs replacement.

Why OEM matters: The genuine 89M20 is engineered to the precise electrical and capacity specifications of your Lennox R-22 equipment. Installing the correct OEM compressor guarantees proper amperage, adequate oil return, and seamless compatibility with your system's start components and controls — safeguarding efficiency, reliability, and your warranty. Have a licensed HVAC technician recover refrigerant and perform the installation.

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 ZR21KA Scroll Compressor 21,000 BTUH R-22 — 89M20?
Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox ZR21KA Scroll Compressor 21,000 BTUH R-22 — 89M20. 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 ZR21KA Scroll Compressor 21,000 BTUH R-22 — 89M20?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online