Product details
Danfoss Crankcase Belt Heater | 70W, 230V | 120Z0892
Product Description: The 120Z0892 is a critical maintenance component for Danfoss scroll and reciprocating compressors. Its primary function is to maintain the compressor oil at a temperature higher than the coldest part of the system, preventing refrigerant from condensing in the crankcase during off-cycles. In the UAE, while daytime temperatures are high, nighttime temperature drops or long standby periods in air-conditioned plant rooms can lead to refrigerant migration. By keeping the lubricant warm, the 120Z0892 ensures proper lubrication at startup and prevents “slugging,” which can lead to mechanical failure. The belt-style design allows for easy wrap-around installation on the compressor base, making it a standard spare part for HVAC technicians in Dubai and Abu Dhabi.
Key Features & Benefits:
- Prevents Liquid Slugging: Ensures refrigerant remains in vapor form within the oil, protecting the compressor’s internal valves and scrolls during startup.
- Optimized for 230V Systems: Perfectly compatible with standard UAE electrical supplies for HVAC control circuits.
- Flexible Belt Design: The “one size fits many” belt style allows for quick and secure installation around the compressor shell.
- Durable Construction: Built to withstand continuous operation and the high-vibration environment of industrial HVAC plant rooms in the UAE.
- Essential for Longevity: Minimizes mechanical wear during the most critical phase of operation—the initial start—extending the lifespan of expensive UAE cooling assets.
Technical Specifications:
| Specifications | Value |
| Manufacturer | Danfoss |
| Product Type | Crankcase Heater (Belt Type) |
| Code Number | 120Z0892 |
| Power Output | 70 W |
| Supply Voltage | 230 V AC |
| Length | Flexible / Adjustable Belt |
| Application | Danfoss Scroll & Reciprocating Compressors |
FAQs:
- Q: Why is a crankcase heater like the 120Z0892 needed in the warm UAE climate?
- A: Even in warm climates, refrigerant migrates to the coldest point (often the compressor oil) during the off-cycle. This heater prevents that migration, which is vital for system reliability in Dubai.
- Q: Can this heater be left on all the time?
- A: Yes, it is typically wired to be energized whenever the compressor is not running to ensure the oil is always pre-heated for the next start.
- Q: Is the 70W (120Z0892) sufficient for large compressors in Abu Dhabi?
- A: 70W is a standard rating for medium-to-large commercial compressors. Always refer to the Danfoss unit’s technical manual for the recommended wattage.
