Service tools
CSI-1
Inverter compressor starter, no PC board required
When an inverter heat pump won't run because of a faulty PC board, you can measure the windings and conclude the compressor is electrically "good" — matched resistances, no short. Only the CSI-1 starter confirms that the compressor actually pumps refrigerant and builds the right pressures. It eliminates wasted diagnostic time distinguishing between a PC board failure and a genuine inverter compressor problem.
Key points
- Immediately confirms whether the compressor is operational
- Verifies that the compressor pumps refrigerant and generates the correct pressures
- Avoids unnecessary service calls
- Works without the original PC board
- Compatible with all brands from 12,000 to 60,000 BTU/h
Specifications
- Compatibility
- All brands, 12,000 to 60,000 BTU/h
- Adjustable frequency
- 20 to 80 Hz
- Recommended use
- 60 Hz maximum




