The HD101 Defrost Drainer, a variation of the HT100 high side float, has an adjustable vent valve bypass to fine-tune individual systems which may experience evaporator defrost gas binding. It is designed as a liquid condensate drain for an evaporator during hot gas defrost. It drains liquid while preventing most hot gas from flowing to the suction line. This process saves energy by eliminating artificial loading of the compressor.

Features:

• Slide Block: Advanced composite material
• Float Ball Assembly: Stainless steel
• Safe Working Pressure: 400 psig (28 bar)
• Operating Temperature: –60F to +240F (–50°C to +115°C)

The HT100, HT200, and HT300 High Side Floats (Float Drain Regulators) are typically used to drain condensers to chillers, recirculators, controlled pressure receivers, or flooded evaporators; to drain hot gas supply mains; or to drain liquid condensate from heat reclaim coils.

Features:

• Slide Block: Advanced composite material
• Float Ball Assembly: Stainless steel
• Safe Working Pressure: 400 psig (27 bar)
• Operating Temperature: –60F to +240F (–50°C to +115°C)

The Level Pulse Control System is a pulse-width modulating system that modulates the flow of liquid to control liquid level, provides a uniform supply of makeup liquid, and most importantly, minimizes fluctuations in vessel pressure. The LPS incorporates a sophisticated Auto-tune controller with a rugged, specially-designed, high-cycle, high-life pulse width valve. The LPS uses a 4-20 mA output signal from a customer-supplied level probe, and has tight-seating shutoff.

Designed to be inserted directly into refrigerant receivers and facilitate the continuous measurement of refrigerant liquid levels. The following results can be tracked: refrigerant loss detection, refrigerant inventory measurements, warnings of excessive refrigerant levels, and insufficient refrigerant quantity. Factory pre-calibrated and tested with no moving parts to break, jam, or fail. Horizontal Receiver Probes (SHP) can also be used in short [less than 30˝ (762 mm) insertion] vertical receivers. For vertical receivers 12˝ to 20˝ (305 to 508 mm) diameter (other diameters need special engineering). Maximum insertion length is 69˝ (1752 mm). Output signal 0-5V or 1-6V; 4-20 mA available, .
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The Hansen Refrigerant Float Switch (HLL series) is used to electrically indicate or control a liquid level by opening or closing a single pole, double throw (SPDT) switch. Its simple, reliable design provides long life performance for almost any application. To overcome the most common reason for existing float switch failure-switch burnout-a heavy-duty 10 amp snap action Honeywell Micro Switch® is used. This switch is sealed in a clear housing to allow visual confirmation of switch action but protection from tampering. In addition, the switch is surrounded by an inert gas that provides an environment which inhibits corrosion. An optional switch housing heater prevents moisture penetration in humid environments. These float switches have a rugged steel tank assembly and a high-strength, large diameter ball stem to eliminate potential stem bending or breakage. Hansen Refrigerant Float Switches are interchangeable with R/S LL series float switches.

Applications:

Hansen's Refrigerant Float Switches are a simple and strong mechanical solution for level control via solenoid valve, high/low level cutout or alarm, liquid transfer drum operation, level indicator via pilot light.

Hansen SEE-LEVEL™ Refrigerant Liquid Indicators provide simple indication of true liquid levels in industrial and commercial refrigeration systems.

• Pre-stressed glass lens fused in steel retainer ring
• Steel, ASME SA36 (ASTM A36) housing
• UL Recognized Component
• Housing and lens traceability by lot code
• 100% quality tested
• Material certification available

These compact Single Point Level Sensors and Switches are economical solutions for reliable and accurate level detection. They are designed to detect the presence of ammonia or halocarbon refrigerant liquid (but not oil) at a specific location in vessels containing refrigerant by capacitance-type, nonoptic sensing. The computer-compatible, low-voltage signal output of the level sensor can be used directly with plant computers, PLC's, solid-state relays or other controllers. The relay output from the level switch is suitable for direct connection to solenoids, alarms, and computers. Single Point Level Sensors & Switches for refrigerants for Refrigerant Vessels, Compressor Packages, Pump Packages, and Flooded Evaporators.

These specially-designed Techni-Level Transducer Probes with 4-20 mA output are for refrigerant level control in computer operated industrial and commercial plants. All transducer electronics are compact, sealed watertight, and located on top of the probe. A 24 Volt DC power input is required. Fifty feet of two-wire cable is included with longer lengths available. An optional 0-100% built-in digital readout is available. Probe active lengths up to 168" (4267 mm). Level columns are available from Hansen or can be field-fabricated. For use with ammonia, R22, R134a and other compatible refrigerants.Techni-Level Transducer Probes are an ideal solution for computer-controlled applications on vertical or horizontal vessels, pump accumulators, pilot receivers, and refrigerant loss monitoring.

The Hansen Vari-Level Adjustable Level Control provides excellent level control and monitoring flexibility for industrial and large commercial refrigeration systems. It takes the place of multiple single point level switches on new or existing refrigerant vessels. This popular, user-friendly, and field-proven system consists of a control unit, and a probe to be inserted in a level column. Control unit models are available with up to five individual level set point relays. Level set points and differentials can be easily set up, and then simply changed by moving knobs when necessary. A built-in level simulator enables the operator to easily check proper operation of control valves, pumps, and alarms at the various set points. For use with ammonia, R22, R134a and other compatible refrigerants.