SMC INR-244-203B Thermo-Con Compact Recirculating Chiller

Description

Key Technical Specifications

Product Introduction & Supply Chain Strategy

The SMC Thermo-Con INR-244-203B is a high-precision thermoelectric recirculating chiller designed for critical processes requiring ultra-tight liquid temperature stability. By utilizing solid-state Peltier elements rather than traditional compressor refrigerant loops, the INR-244-203B delivers quiet, vibration-free heating and cooling for semiconductor manufacturing equipment, laser diodes, chemical analyzers, and medical diagnostic instruments.

Maintaining a New Surplus SMC Thermo-Con INR-244-203B in your local spare parts inventory is an essential operational risk-mitigation strategy. Thermoelectric chiller failures on sensitive optical or etching lines can cause immediate thermal runaway, leading to ruined production wafers or ruined diagnostic batches. Sourcing genuine New Surplus guarantees pristine internal fluid seals, unaged Peltier junctions, and untouched pump impellers—preventing fluid leaks, temperature drift, and sudden pump failure common in second-hand or refurbished units.

INR-244-203B

INR-244-203B

Installation & Configuration Guide

Stage 1: Pre-Installation (Prep & Safety)

1. Isolate main power supply circuits and follow facility Lock-Out/Tag-Out (LOTO) procedures.
2. Verify that the circulating fluid lines are clean, unpressurized, and compatible with SMC Thermo-Con internal fluid wetted materials.
3. Check that the installation location provides adequate ventilation clearance for proper heat dissipation.

Stage 2: Removal

1. Turn off power to the existing Thermo-Con unit and isolate fluid inlet/outlet valves.
2. Drain the circulating fluid safely into an appropriate reservoir using lower drain ports.
3. Disconnect power cables, serial/analog I/O control harnesses, and quick-disconnect or threaded fluid fittings.
4. Remove mounting hardware and carefully extract the unit from the equipment rack or cabinet.

Stage 3: Installation (Clone & Seat)

1. Unpack the new SMC Thermo-Con INR-244-203B from its original factory static-shielded box.
2. Position and secure the unit onto its rack mounting shelf or rubber vibration dampeners.
3. Reconnect the circulating fluid inlet and outlet lines using clean, leak-tight thread sealant or factory quick-connect fittings.
4. Plug in power and control wiring harnesses (RS-232C/RS-485 and analog I/O).

Stage 4: Power-On & Testing

1. Fill the fluid reservoir with the specified circulating medium and bleed all trapped air from the fluid loop.
2. Apply input power and configure setpoint parameters using the front panel display or serial control interface.
3. Confirm that the circulating pump runs smoothly, fluid flow is established, and the target temperature stabilizes within specified limits without alarm triggers.

Firmware/Software Versions & Upgrade Notes

• Digital Parameter Configuration: Target temperatures, alarm thresholds, and PID tuning constants can be configured directly via the front keypad display or remotely via serial communications (RS-232C / RS-485).
• Fluid Compatibility: Always verify fluid compatibility (e.g., DI water resistivity limits or specific fluorinated fluid grades) before filling the reservoir to avoid internal pump seal or heat exchanger degradation.
• Solid-State Reliability: Because Peltier elements switch seamlessly between heating and cooling by reversing electrical current, ensure power input lines are protected against voltage surges and rapid line fluctuations.
• Maintenance Note: Periodically clean air filters/heat sinks and monitor circulating fluid quality to maintain optimal heat transfer performance and pump life.

Frequently Asked Questions (FAQ)

Q: How can I verify that this SMC Thermo-Con INR-244-203B unit is 100% Brand New Surplus?

A: Every unit we offer is 100% Brand New Surplus. It arrives in clean, original SMC factory packaging, complete with untouched electrical connectors, pristine fluid port covers, unblemished chassis paint, and original factory serial tags. It has never been deployed in field service.

Q: What is the main advantage of a thermoelectric chiller over a compressor-based chiller?

A: Thermoelectric chillers use solid-state Peltier elements, eliminating moving compressor parts. This results in extremely high temperature stability (±0.01 °C level control), fast thermal response, zero vibration, low acoustic noise, and a compact physical footprint.

Q: What circulating fluids can be used with the ?

A: Depending on exact wetted material configurations, Thermo-Con units typically accept clear water, deionized (DI) water within specified conductivity limits, water/ethylene glycol mixtures, or specialized fluorinated liquids (e.g., Galden or Fluorinert). Always check manual specs prior to filling.

Q: What remote communication interfaces are supported?

A: The unit features serial communication ports (such as RS-232C or RS-485) along with discrete/analog I/O connectors, allowing full integration into host automated tool controllers and SCADA systems.

Q: Does this unit provide both heating and cooling functions?

A: Yes. Thermoelectric modules automatically switch between heating and cooling modes by adjusting the direction and magnitude of the direct current passing through the Peltier elements, allowing precise control around ambient temperatures.

Q: What warranty coverage comes with this module?

A: We back this unit with a comprehensive 1-Year Warranty. Every unit undergoes thorough visual, mechanical, and electrical verification before shipment.