Standard Datasheet  

[User Manual](/products/liquid-cooling-systems/nextreme-recirculating-chillers/NRC5000-A1-20-ST1/user-manual)

MFG Part Number 385912-034

# NRC5000-A1-20-ST1

Legacy Product

## Nextreme™ Performance Series Liquid Cooling System

 ***Note:** This product has reached end of production. Please use the recommended replacement.  
 Please click the \[Remaining Inventory\] button to see inventory available.  
 The recommended replacement is:  
 MFG Part Number:  
 Description:*  
The Nextreme NRC5000 Recirculating Chiller features premium components and environmentally friendly refrigerants in a user-friendly design. It is designed to cool well below ambient and dissipate heat away from thermally sensitive equipment. Featuring variable speed motors for the compressor and condensing fan, the Nextreme NRC5000 offers a high coefficient of performance and low-noise operation. The Nextreme NRC5000 comes with several standard features and additional options allow for application-specific configurations. Power cord is **not** supplied with the unit and **must be ordered separately**.

![Product image](/thermal-wizard/images/lcs/NRC5000/NRC5000-large.png)

### Features

- Precise Temperature Control
- Compact Form Factor
- Reliable Solid-State Operation
- Intuitive GUI
- Low Noise Operation

### Applications

- [Analytical Imaging](/applications/digital-microscopes)
- [Industrial Laser Systems](/applications/industrial-laser-cooling)
- [Semiconductor Test & Measurement](/applications/semiconductor-metrology-equipment)
- [Laboratory Testing](/thermal-technical-library/application-notes/chillers-simplify-the-lab)
- [Bath Cooling](/applications/bath-cooling)

![Isometric drawing](/thermal-wizard/images/lcs/NRC5000/NRC5000-isometric-drawing.png)

### Technical Specifications

**Performance**

Nominal Cooling Capacity1

 4,900 W

Setpoint Range

 -10°C to 40°C

Temperature Stability3

 ±0.10°C

Nominal Operating Flowrate (60 Hz)1

 15.0 L/min @ 2.8 Bar

Nominal Operating Flowrate (50 Hz)1

 15.0 L/min @ 1.7 Bar

Refrigerant (Fluorinated greenhouse gas)

 R513A; GWP 631

Refrigerant Charge

 1480g

 Sound Pressure Level at Nominal Cooling Capacity (50 Hz)1

 65 dBA

 Sound Pressure Level at Nominal Cooling Capacity (60 Hz)1

 69 dBA  

**Operation**

Coolant

Water or Water/Glycol

Operating Temperature2

15°C to 40°C

Storage temperature range (w/o coolant)

-25°C to 70°C

Humidity range

30% to 80%

Storage Humidity range

5% to 95%, non-condensing

Altitude

 < 2,000 meters

Input Voltage

200 - 230 VAC / 208 - 240 VAC

Frequency

50 / 60 Hz

Current

 < 9.1 Amps

Maximum Forward Pressure

 4.1 Bar

Compliance

 ANSI / UL / CSA / IEC EN 61010-1 Edition 3

**Physical**

Height

910 mm

Length

590 mm

Width

630 mm

Weight

103 kg

Coolant Capacity

 5 Liters

Couplings

1/2 in NPT

### Standard Features

Variable Speed Motors

Variable speed compressor and condensing fans for quiet operation and improved energy efficiency.

Semi-Closed Fluid System

Sealed fluid system with breathable reservoir cap (similar to an automobile). This prevents evaporative loses, introduction of bacteria, and the need for components to prevent fluid from draining back into the system when installed below the application.

Optical Fluid Level Switch

Fluid level sensing with no moving parts.

RS-232 Communications

Complete control integration of chiller into higher level assembly control system.

Supply Pressure Sensing

Pressure sensing for applications sensitive to high operating conditions.

### Accessory Kits

Feature

Kit Part Number

Description

![](/thermal-wizard/images/accessories/flow-control-kit-thumb.png)

Flow Control Valve and Flow Sensing Kit

387004277

This externally installed valve is for reducing the overall flow to the application. Full flow continues through the chiller to maintain high heat transfer rates and temperature stability. The flow meter is for measuring coolant flow rate and is installed externally to the chiller with both a local display (GPM) and connectivity to the chiller LCD display. The flow rate local display is only on NRC products. This kit is for all refrigerant chillers: EFC2400, NRC1200, NRC2400, NRC5000, VRC1200, VRC2400, and VRC4500.

![](/thermal-wizard/images/accessories/water-filter-thumb.png)

Water Filter Kit

387004279

Hot swappable, 5-micron water filter for filtering particulates from the coolant circuit.

![](/thermal-wizard/images/accessories/flow-bypass-kit-thumb.png)

Flow Bypass Kit

387010608

This externally installed valve is for reducing the overall flow to the application. Full flow continues through the chiller to maintain high heat transfer rates and temperature stability. This kit does not contain a flow meter.

![](/thermal-wizard/images/accessories/pressure-bypass-kit-thumb.png)

Pressure Bypass Kit

387010420

This pressure bypass kit prevents high pressure operation and can either operate partially open or open when there is a change in operation (e.g., flow to application stopped). It can be used for flow control but operates with less precision. This pressure bypass maintains full flow through the chiller heat exchanger.

### Cord Options

These power cords have been tested and validated on Nextreme devices.

Power cord is not supplied with the unit and must be ordered separately.

MFG Part Number

Plug Type

Standard

Style

Cable  
Length

Rating

Color

Connector

Order

387005324

Universal

None

Flying Leads

2.0 m

250VAC, 16A* / 20A**

Black

C19

\* IEC \*\* UL

![Front and rear view](/thermal-wizard/images/lcs/NRC5000/NRC5000-rear-front.png)

###  
Cooling Power Operating Points

Select Graph

 Cooling Capacity  
vs Temperature Setpoint ΔT (Inlet-Outlet)  
vs Temperature Setpoint Pump Curve (Pressure vs Flow)

 **100% Water (20°C Ambient Air)**  
 Cooling Power (Qc) = 4,900 Watts  
 Fluid Setpoint = 20 °C  
 Fluid ΔT @ 15.0 L/min = 4.7 °C  

 **100% Water (30°C Ambient Air)**  
 Cooling Power (Qc) = 3,800 Watts  
 Fluid Setpoint = 20 °C  
 Fluid ΔT @ 15.0 L/min = 3.7 °C  

 **60/40 Water-Glycol (20°C Ambient Air)**  
 Cooling Power (Qc) = 4,700 Watts  
 Fluid Setpoint = 20 °C  
 Fluid ΔT @ 15.0 L/min = 4.9 °C  

 **60/40 Water-Glycol (30°C Ambient Air)**  
 Cooling Power (Qc) = 3,600 Watts  
 Fluid Setpoint = 20 °C  
 Fluid ΔT @ 15.0 L/min = 3.8 °C  

### Notes

1. Nominal capacity rating is given at a 20°C (68°F) setpoint, 20°C (68°F) ambient temperature, sea level.
2. For ambient conditions outside this range, please contact Laird Thermal Systems.
3. Typical for nominal capacity rating. Contact LTS applications engineering for application specific performance.

Any information furnished by Tark Thermal Solutions and its agents, whether in specifications, data sheets, product catalogues or otherwise, is believed to be (but is not warranted as being) accurate and reliable, is provided for information only and does not form part of any contract with Tark Thermal Solutions. All specifications are subject to change without notice. Tark Thermal Solutions assumes no responsibility and disclaims all liability for losses or damages resulting from use of or reliance on this information. All Tark products are sold subject to the Tark Thermal Solutions Terms and Conditions of sale (including Tark’s limited warranty) in effect from time to time, a copy of which will be furnished upon request.  

 © Copyright 2026 Tark Thermal Solutions, Inc. All rights reserved.  

 Nextreme™ is a trademark of Tark Thermal Solutions, Inc. All other marks are owned by their respective owners.

Revision: 06 Date: 08-18-2026

Print Date: 10-21-2026

**Original URL:** https://tark-solutions.com/products/liquid-cooling-systems/nextreme-recirculating-chillers/385912-034