Compatible with Midea Air Conditioner - YK-4.4/3.2-500-1 RoHS / 17400516000851 Pressure switch
Compatible with Midea Air Conditioner - YK-4.4/3.2-500-1 RoHS / 17400516000851 Pressure switch
SKU:17400516000851
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Safeguard your mini-split air conditioning and heat pump compressor against destructive discharge overpressure with this authentic OEM High Pressure Switch. Engineered with factory-calibrated pressure thresholds, this heavy-duty hermetically sealed switch ensures instant electrical cutoff during extreme refrigeration pressure conditions, preventing catastrophic compressor failure.
Why HVAC Professionals & Technicians Choose This Switch
- 100% Direct OEM Replacement: Built to exact factory thread dimensions, sensor capillary length, and wire lead terminations for seamless drop-in installation with zero piping alterations.
- Precision Calibrated Cut-Off & Reset: Factory pre-set to trigger protective cut-off at 4.4 MPa and automatically reset at 3.2 MPa, maintaining system safety within safe thermodynamic limits.
- Hermetically Sealed Heavy-Duty Construction: Laser-welded stainless steel pressure diaphragm and sealed wiring withstand outdoor vibration, moisture, and high-pressure refrigerant cycling.
- Comprehensive Quality Benchmarking: Every switch undergoes 100% helium leak detection and high-pressure cycle endurance testing prior to dispatch.
Technical Specifications
| Primary Part Number | 17400516000851 |
| Model / Series Code | YK-4.4/3.2-500-1 |
| Component Type | High Pressure Cutoff Switch (Auto-Reset) |
| Cut-Off Pressure (Off) | 4.4 MPa (approx. 638 PSI) |
| Reset Pressure (On) | 3.2 MPa (approx. 464 PSI) |
| Application | Outdoor Mini-Split Condenser & Heat Pump Refrigerant Circuit |
| Compliance | RoHS Compliant |
| Product Condition | Brand New Factory Original Replacement |
Cross-Reference & System Compatibility
| System Type | Compatible Models |
|---|---|
| Ductless Heat Pumps & Mini-Splits | Compatible with outdoor condensing units using YK-4.4/3.2 series high pressure protection across Midea, Carrier, and OEM brands |
Fitment Assurance Guarantee
Unsure if this pressure switch matches your outdoor unit?
Pressure switches must match exact cut-off/cut-in pressure values and thread connections. Avoid system downtime—send us a photo of your existing switch label or outdoor unit nameplate, and our HVAC specialists will verify compatibility within 12 hours.
