
Danfoss 120Z0056 Crankcase Heater
The Danfoss 120Z0056 Crankcase Heater is a critical component designed to maintain compressor reliability in low ambient conditions. This belt-type heater is engineered for high-performance HVACR systems, utilizing a 400V power supply to deliver a consistent 40W of heat. It is specifically sized for compressors with a 160mm to 175mm diameter, ensuring a tight fit for efficient thermal transfer. By maintaining lubricant temperature, this crankcase heater prevents refrigerant migration and slugging on startup, which are primary causes of mechanical failure in scroll and reciprocating compressors. Its robust construction ensures it can withstand the thermal cycling typical of commercial refrigeration and industrial cooling applications.
Key Benefits for Technicians:- Precise Fitment: Designed for an exact wrap around 160-175mm diameter housings, ensuring maximum heat conductivity.
- Optimized Power Draw: The 400V 40W rating provides necessary thermal energy without excessive amperage draw on the control circuit.
- Operational Integrity: Protects the compressor against liquid refrigerant dilution in the oil sump during off-cycles.
- Ease of Installation: Standard belt-style clamp allows for rapid field replacement during routine maintenance or emergency repairs.
What happens if the heater diameter is slightly larger than the compressor?
Proper tension is vital; if the belt heater is loose, heat transfer efficiency drops significantly, potentially leading to oil foaming. Ensure the 160-175mm range matches your specific compressor shell.
Can this heater be wired to run continuously?
Standard field practice involves wiring the 120Z0056 through a normally closed auxiliary contact on the compressor contactor so it energizes only when the compressor is idle.
Is this compatible with multiple refrigerant types?
Yes, this replacement crankcase heater functions independently of the refrigerant type, focusing solely on maintaining the physical temperature of the lubricant and compressor housing.
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.
Original: $68.04
-65%$68.04
$23.81Danfoss 120Z0056 Crankcase Heater
The Danfoss 120Z0056 Crankcase Heater is a critical component designed to maintain compressor reliability in low ambient conditions. This belt-type heater is engineered for high-performance HVACR systems, utilizing a 400V power supply to deliver a consistent 40W of heat. It is specifically sized for compressors with a 160mm to 175mm diameter, ensuring a tight fit for efficient thermal transfer. By maintaining lubricant temperature, this crankcase heater prevents refrigerant migration and slugging on startup, which are primary causes of mechanical failure in scroll and reciprocating compressors. Its robust construction ensures it can withstand the thermal cycling typical of commercial refrigeration and industrial cooling applications.
Key Benefits for Technicians:- Precise Fitment: Designed for an exact wrap around 160-175mm diameter housings, ensuring maximum heat conductivity.
- Optimized Power Draw: The 400V 40W rating provides necessary thermal energy without excessive amperage draw on the control circuit.
- Operational Integrity: Protects the compressor against liquid refrigerant dilution in the oil sump during off-cycles.
- Ease of Installation: Standard belt-style clamp allows for rapid field replacement during routine maintenance or emergency repairs.
What happens if the heater diameter is slightly larger than the compressor?
Proper tension is vital; if the belt heater is loose, heat transfer efficiency drops significantly, potentially leading to oil foaming. Ensure the 160-175mm range matches your specific compressor shell.
Can this heater be wired to run continuously?
Standard field practice involves wiring the 120Z0056 through a normally closed auxiliary contact on the compressor contactor so it energizes only when the compressor is idle.
Is this compatible with multiple refrigerant types?
Yes, this replacement crankcase heater functions independently of the refrigerant type, focusing solely on maintaining the physical temperature of the lubricant and compressor housing.
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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Description
The Danfoss 120Z0056 Crankcase Heater is a critical component designed to maintain compressor reliability in low ambient conditions. This belt-type heater is engineered for high-performance HVACR systems, utilizing a 400V power supply to deliver a consistent 40W of heat. It is specifically sized for compressors with a 160mm to 175mm diameter, ensuring a tight fit for efficient thermal transfer. By maintaining lubricant temperature, this crankcase heater prevents refrigerant migration and slugging on startup, which are primary causes of mechanical failure in scroll and reciprocating compressors. Its robust construction ensures it can withstand the thermal cycling typical of commercial refrigeration and industrial cooling applications.
Key Benefits for Technicians:- Precise Fitment: Designed for an exact wrap around 160-175mm diameter housings, ensuring maximum heat conductivity.
- Optimized Power Draw: The 400V 40W rating provides necessary thermal energy without excessive amperage draw on the control circuit.
- Operational Integrity: Protects the compressor against liquid refrigerant dilution in the oil sump during off-cycles.
- Ease of Installation: Standard belt-style clamp allows for rapid field replacement during routine maintenance or emergency repairs.
What happens if the heater diameter is slightly larger than the compressor?
Proper tension is vital; if the belt heater is loose, heat transfer efficiency drops significantly, potentially leading to oil foaming. Ensure the 160-175mm range matches your specific compressor shell.
Can this heater be wired to run continuously?
Standard field practice involves wiring the 120Z0056 through a normally closed auxiliary contact on the compressor contactor so it energizes only when the compressor is idle.
Is this compatible with multiple refrigerant types?
Yes, this replacement crankcase heater functions independently of the refrigerant type, focusing solely on maintaining the physical temperature of the lubricant and compressor housing.
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.












