SMC HRZ002-W1S-FN Circulating Fluid Thermo Chiller Unit

Module Feature

HRZ002-W1S-FN is SMC HRZ-F series water-cooled refrigerated circulating fluid thermo chiller. Model decoding: HRZ002 = 2kW cooling capacity; W1S = water cooled, single circuit, inverter compressor + inverter pump; FN = no communication function, NPT thread port specification. It adopts dual inverter control for compressor and circulation pump, energy-saving design, stable temperature accuracy up to ±0.1℃ under steady load. Supports multiple circulating media including ethylene glycol aqueous solution, deionized water and fluorinated liquid. Complies with EU F-Gas regulation, widely used for semiconductor equipment, laser, coating and precision process constant temperature cooling.

Working principle

Refrigeration cycle of compressor and condenser removes heat from circulating fluid. PID closed-loop algorithm continuously adjusts the speed of inverter compressor and inverter pump to stabilize fluid outlet temperature. The circulating pump delivers constant-temperature fluid to the process load and returns back to the chiller for heat exchange. Built-in multiple protection functions prevent over-temperature, low flow and refrigerant abnormal faults.

Onboard components

DC inverter compressor, water-cooled plate heat exchanger, inverter circulation pump, expansion tank, refrigerant circuit assembly, PID control board, flow sensor, pressure transducer, NPT fluid ports, local operation display panel.

LED indicators

Front panel LED indicators for power, run, alarm and fault status; display screen shows set temperature, actual fluid temperature, flow rate and fault code.

Hardware self‑diagnosis

Self-diagnosis covers fluid low flow, high/low fluid temperature, refrigerant high/low pressure, pump overload, compressor abnormality, water cooling side over-temperature. Fault records can be checked on local panel.

Programming software

No dedicated upper computer software; all temperature parameters, alarm thresholds and operation modes are set via local panel. Optional communication variants support external host linkage, this FN version has no communication interface.

Electrical & Process Parameters

Model:HRZ002-W1S-FN Brand:SMC Device type:Water-Cooled Inverter Thermo Chiller Cooling capacity:2 kW Control mode:PID closed-loop control Temperature stability:±0.1℃ Circulating fluid:Ethylene glycol water, DI water, fluorinated fluid Fluid temperature range:-20 ~ +90℃ Port type:NPT thread Cooling method:Water cooled Function:Precise constant temperature circulating cooling for precision industrial process

Mechanical & Structure

Mounting:Floor standing or rack mounting Protection class:IP20 Housing:Sheet metal enclosed cabinet

Environmental

Operating temperature:10℃ ~ +35℃ Storage temperature:-20℃ ~ +60℃ Ambient humidity:30~70% non‑condensing Certification:EU F-Gas regulation compliant Status:SMC original HRZ-F series precision thermo chiller

Installation

Place the chiller at well ventilated position. Connect process circulating fluid pipeline and cooling water pipeline, perform leak test. Connect rated power supply. Set target temperature and flow protection parameters on panel, run self-check before putting into process cooling.

Interface

NPT fluid inlet / outlet ports, cooling water inlet and outlet, power terminal block.

Diagnostic

Temperature drift:Cooling water flow unstable, heat exchanger fouling or fluid flow insufficient. Low flow alarm:Circulation pump failure, pipeline blockage or air trapped inside loop. Refrigerant pressure fault:Refrigerant leakage or cooling water temperature out of range. Overheat alarm:Excessive process heat load or abnormal cooling water supply.

Product Brief

SMC HRZ002-W1S-FN water-cooled inverter thermo chiller, 2kW cooling capacity, NPT port, ±0.1℃ high precision PID temperature control, for semiconductor and precision industrial process circulating constant temperature cooling.