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Danfoss 120Z0459 PTC Crankcase Heater 27W 230-600V

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Special Price $28.42 Regular Price $36.95
In stock
SKU
120Z0459
The Danfoss 120Z0459 PTC Crankcase Heater is a specific device used in HVAC equipment, especially air conditioners and refrigeration units. It is run at a voltage range of 230 to 600 volts with a power of 27 watts. The crankcase heater not only provides the prevention against refrigerant migration but also the lubrication of the compressor's crankcase to the adequate range. This improves the life and effectiveness of the HVAC system. It prevents cold start problems by minimizing damages. Moreover, it prevents excessive viscosity of oil, hence allowing efficient running at colder temperatures by keeping the crankcase warm.
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Heating & Furnace Parts, Crankcase Heaters
Manufacturer:
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Specifications

  • Type: PTC heater
  • Voltage:230V-600V
  • Power Rating: 27W
  • Volume: 0.195 Liter
  • Weight: 0.14 lbs
Manufacturer Name: Danfoss
Product Number: 120Z0459
OEM Part Number: 120Z0459
Product Description: 27W 230-600V Ptc Crnkcseheater
Weight:0.14lbs/63.5g

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Product Questions (2)
Customer Questions
What maintenance is required for the Danfoss 120Z0459 Crankcase Heater?

Inspect the crankcase heater regularly for damaged insulation, loose wiring, or signs of overheating. Ensure the heater remains securely mounted around the compressor crankcase for proper heat transfer and refrigerant protection. Check electrical connections during HVAC servicing to maintain accurate operation. Always disconnect power before handling or testing the heater assembly.

What are common issues with the Danfoss 120Z0459 Crankcase Heater?

  • Overheating or inconsistent heating performance.
  • Loose connections causing intermittent operation.
  • Insulation degradation leading to short circuits.
  • Failure to activate in cold conditions.
  • Reduced heating efficiency affecting compressor protection.

Installation Steps

Step 1: Disconnect power and confirm compressor is fully inactive.

Step 2: Remove old heater and clean crankcase contact surface.

Step 3: Fit new heater snugly around compressor body securely.

Step 4: Connect electrical leads to rated voltage terminals carefully.

Step 5: Restore power and check uniform mild warming operation.