Products Description
| Product Name | Carrier HH79NZ016 Pipe-Clamp NTC Water Temperature Sensor |
| Model | HH79NZ016 |
| Applicable Industries | Construction and Commercial |
| Application | Refrigeration compressor |
| Packaging | Cardboard Box |
| MOQ | 1 Piece |
Core Product Functions:
1. Real-time Water Temperature Monitoring (Supply/Return)
Clamps onto the outer wall of copper piping (chilled/cooling water) to continuously monitor water temperature and transmit data to the main controller. The control panel displays real-time temperatures, providing the baseline for the PID control logic that modulates the compressor slide valve (0–100% load) to stabilize the outlet water temperature.
2. Anti-freeze Safety Interlock
If the water temperature drops below the anti-freeze threshold, a sudden change in sensor resistance triggers the unit’s anti-freeze protection; this locks out the compressor and activates pipeline heat tracing to prevent the water system from freezing or bursting in winter.
3. Auxiliary Water Flow Fault Diagnosis
If the temperature difference between supply and return water is abnormal or the temperature remains static for an extended period, the mainboard cross-references data from the water flow switch to detect pump failure or system blockages, triggering a water flow fault alarm.
4. Superheat Stabilization via Electronic Expansion Valve (EEV)
In heating/cooling heat pump modes, the system coordinates with high/low-pressure sensors to control ETS-series electronic expansion valves. This precisely regulates refrigerant flow, preventing evaporator icing and compressor liquid hammer (and associated noise).
5. Rapid Fault Self-diagnosis and Reporting
The main controller detects anomalies—such as open circuits, short circuits, or resistance values outside the standard range—and reports water temperature sensor faults. The unit shuts down in a load-limited state, allowing for rapid identification of wiring or probe failures.
6. Rapid Installation/Removal Without Depressurization (Reduced Maintenance Time)
The external clamp-on design eliminates the need to recover refrigerant or drain the water system; the sensor can be replaced individually by simply loosening the mounting clamp, significantly reducing downtime for maintenance.
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Technical parameter
Company Profile
Factory Profile
| Q1:For refrigeration industry, which brands are your products covering? | A1:We produce filter element replacements for brands like,Bitzer, Carrier, York, McQuay, Trane, etc… |
| Q2:Does the price include freight? | A2:The quotation is usually the factory price. We can recommend the most economical logistics plan and calculate the freight according to your destination and quantity. |
| Q3:How to ensure product quality? | A3:We have a strict quality control process, and we will carry out multiple inspections before the products leave the factory to ensure that they meet the standards. |
| Q4:Why choose us? | A4:Product reliability: We are a professional manufacturer . can offer high-quality products at the most competitive prices. Technical support: We provide technical assistance. Industry experience: We have over 10 years of experience in the refrigeration equipment service field. After-sales service: We offer professional after-sales service. Team collaboration: We have a professional team that can provide you with prompt services and delivery schedules. |
Typical product failure symptoms:
The unit reports a water temperature sensor fault immediately upon power-up; the temperature reading on the panel remains static, resets to zero, or drifts significantly;
Inaccurate water temperature readings cause the unit to lock out/shut down prematurely before reaching the anti-freeze temperature threshold, or fail to trigger anti-freeze protection during low-temperature conditions;
Detached thermal pads or loose clamps result in severely skewed temperature readings (too high or too low), insufficient cooling capacity, and failure to meet target outlet temperatures;
Water ingress and corrosion in the waterproof connector cause intermittent loss of temperature signals, leading to random load limiting and stuttering slide valve adjustments;
High temperatures melt the wire harness insulation and break internal conductors, resulting in an open circuit (no continuous resistance path) when tested with a multimeter;
Aging of the NTC sensor element causes resistance values to deviate from the standard 16kΩ curve, leading to erratic load regulation and evaporator icing.
