Product details
Danfoss Crankcase Belt Heater | 65W, 230V | 120Z0464
Product Description:
The 120Z0464 is a vital safety component for Danfoss scroll compressors. Its primary role is to keep the compressor’s lubricant warm during the off-cycle, ensuring that refrigerant remains in a vapor state and does not mix with the oil. In the UAE’s HVAC environment, preventing “liquid slugging” is essential; a cold start with diluted oil can lead to immediate mechanical failure of the scroll sets. This belt-style heater wraps securely around the lower shell of the compressor, providing direct thermal contact. It is a standard maintenance item for commercial AC units, rooftop packages, and chillers in Dubai and Abu Dhabi, where system reliability is non-negotiable during high-demand periods.
Key Features & Benefits:
- Eliminates Cold Start Risks: Maintains oil viscosity and prevents refrigerant dilution, ensuring immediate lubrication upon compressor startup.
- Wrap-Around Belt Design: Provides excellent heat transfer and is adjustable for a snug fit on various Danfoss compressor frame sizes.
- UAE Voltage Compatible: Designed to operate on standard 230V AC control circuits common in UAE electrical panels.
- Durable Heating Element: Built with high-quality materials to withstand the continuous heat and vibration of industrial HVAC environments.
- Easy Maintenance: Can be easily inspected or replaced by UAE HVAC technicians without opening the refrigeration circuit.
Technical Specifications:
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Type | Crankcase Heater (Belt Type) |
| Code Number | 120Z0464 |
| Power Output | 65 W |
| Supply Voltage | 230 V AC |
| Fixing Type | Adjustable Metal Belt / Strap |
| Application | Danfoss Scroll & Reciprocating Compressors |
FAQs:
- Q: Why is a 65W heater necessary in the hot UAE climate?
- A: While the air is hot, the pressure differences during the off-cycle still cause refrigerant to migrate to the compressor oil. This heater is the only way to ensure a “dry” start, which is critical for longevity in Dubai.
- Q: How is the 120Z0464 typically wired in UAE systems?
- A: It is usually wired through a normally closed (NC) contact on the compressor contactor, so it turns on only when the compressor stops.
- Q: Is this belt heater weather-resistant for outdoor units in Sharjah?
- A: Yes, it is designed for use within the compressor compartment of outdoor units, though it should be protected from direct water spray.
