Product details
Danfoss Crankcase Belt Heater | 50W, 230V | 120Z0057
Product Description: The 120Z0057 is an essential safety component for Danfoss compressors operating in the Middle East. Its primary function is to keep the compressor’s lubricant warm during the off-cycle, ensuring that refrigerant remains in a vapor state and does not condense in the oil. In the UAE’s climate, even with high day temperatures, nighttime cooling or placement in air-conditioned plant rooms can lead to “liquid slugging” if the oil is not pre-heated. This belt-style heater wraps securely around the lower shell of the compressor, providing constant heat to ensure the unit is ready for a safe, lubricated start every time. It is a standard maintenance part for residential split units and light commercial systems in Dubai and Abu Dhabi.
Key Features & Benefits:
- Ensures Safe Startups: Prevents refrigerant from diluting the oil, reducing mechanical wear on scrolls and bearings during the initial start in UAE systems.
- Flexible Belt Design: The adjustable strap allows for a snug and efficient fit around various Danfoss compressor diameters.
- Reliable 50W Output: Provides steady heat to maintain oil viscosity without excessive energy consumption.
- High-Ambient Ready: Built with materials that withstand the continuous heat and vibration of HVAC operations in the UAE.
- Standard Electrical Fit: Compatible with common 230V AC control circuits used in UAE electrical panels.
Technical Specifications:
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Type | Crankcase Heater (Belt Type) |
| Code Number | 120Z0057 |
| Power Output | 50 W |
| Supply Voltage | 230 V AC |
| Fixing Type | Adjustable Metal Belt / Strap |
| Application | Danfoss Scroll & Reciprocating Compressors |
FAQs:
- Q: Why do I need a crankcase heater in the UAE where it’s always hot?
- A: Refrigerant always moves toward the coldest point in the system. When the compressor stops, it becomes a collector for refrigerant; the heater prevents this “migration,” which is critical for preventing compressor failure in Dubai.
- Q: Can the 120Z0057 be easily replaced by a technician in the UAE?
- A: Yes, it is an external component that can be replaced without opening the gas circuit, making it a simple but vital fix for UAE HVAC units.
- Q: Should the heater be on when the compressor is running?
- A: No. It is typically wired to turn off when the compressor starts and turn on only during the standby period.
