Modular Air-Cooled Scroll Chillers - Withair® Heating and Cooling, Air Conditioning, Heat Pump, Chiller, Industrial Process Cooling & Heating Systems, and Indoor Air Quality

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Air-Cooled Scroll Water Chillers

Modular Version

Capacity Range: 20 to 160 tons, 50 and 60 Hz
Refrigerant: HFC-R410A
Compressor Type: Hermetic Scroll
Widely operation range: 5°C ~ 48°C

Compact design and smaller footprint
Multi-system design and wear-and-tear management technology
Unit adopts modular design, relatively independent modules units
Reliable scroll compressor maximizes performance and reliability
Connectivity, flexibility and serviceability enabled by smart controller
Designed to improve efficiency and reduce sound at part load
Built on Withair’s platform to provide consistent quality and reliability
Sustainability enhancing features, such as free cooling or heat recovery
Smart microchip control, LCD user interface, capable of one-key startup
Ease of installation with standard factory-installed strainer and flow switch
Optional integrated pump packages further ease installation & reduce risk

OVERVIEW
MODELS
OPTIONS
RESOURCES
SERVICES
RELATED PRODUCTS

Overview

Efficient, Flexible and Quiet

The perfect combination of sound and efficiency for your small tonnage applications. The Withair's air-cooled scroll chiller offers the perfect combination of flexibility, efficiency and low noise. Available in sizes ranging from 20 to 160 tons with a compact footprint, and it is one of the quieter air-cooled chillers available today. There are multiple levels of efficiency to choose from to comply with your local code requirements.
Perfect Combination for Small Tonnage Applications

Modular Air-cooled Water Chiller Offers the perfect combination of flexibility, efficiency and low noise. Available in sizes ranging from 20 to 160 tons with a compact footprint. There are basic modules of any combination available for different models, and at most 16 modules can be connected in parallel.
Partial Heat Recovery and Total Heat Recovery

Using partial heat recovery or total heat recovery, rejected heat can be redirected through a heat exchanger to provide heat for reheat coils. Unlike a heat pump, a heat recovery unit does not have reversible refrigeration circuits. Heat recovery applications primarily control to a supply heating temperature and typically recover/source energy from the HVAC system chilled water loop for heating use. There must be a cooling load to satisfy a heating load and vice versa. The recovered energy is delivered to the water heating loop by diverting the compressor refrigerant discharge into a water-cooled heat exchanger instead of into the air-cooled condenser.
Gain Reliable Year-Round Comfort

A perfect fit to meet your sustainability and efficiency targets. Enabled by our advanced controller, advanced adaptive control optimize performance. Post-installation, controller can connect with BMS energy analysis and 24/7 monitoring services to assure Withair's Air-cooled Scroll Chillers are continuously optimized for efficiency and uptime.
Integrated Free Cooling

The free cooling option delivers optimal performance by minimizing compressor operation when outdoor air temperatures are low enough to assist in cooling the chilled fluid loop. The integrated chiller fluid-based free-cooling system consists in a set of coils, installed in the same frame as the condenser coils of the chiller refrigerant circuit. Free-cooling coils are installed in series ahead of the evaporator. A set of water regulating valves modulate flow, and allow the coils to be by-passed when ambient temperatures are no longer favorable for free-cooling operation. Free-cooling coils will be all aluminum, flat radiator design type, with low air pressure drop to avoid fan performance degradation.

Models

co Specifications	W02C1-72	W02C1-105	W02C1-140	W02C1-175	W02C1-210	W02C1-280	W02C1-363	W02C1-565
Capacity (Ton)	20	30	40	50	60	80	100	160
Capacity (kW)	72	105	140	175	210	280	363	565
EER (kW/kW)	3.35	3.36	3.33	3.35	3.36	3.38	3.38	3.35
Compressor	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll	Hermetic Scroll
Evaporator	Shell & Tube	Shell & Tube	Shell & Tube	Shell & Tube	Shell & Tube	Shell & Tube	Shell & Tube	Shell & Tube
Condenser	High Efficiency	High Efficiency	High Efficiency	High Efficiency	High Efficiency	High Efficiency	High Efficiency	High Efficiency
Voltage	230, 380, 460	230, 380, 460	230, 380, 460	230, 380, 460	230, 380, 460	230, 380, 460	230, 380, 460	230, 380, 460
Frequency	50 and 60	50 and 60	50 and 60	50 and 60	50 and 60	50 and 60	50 and 60	50 and 60
Refrigerant	R410A	R410A	R410A	R410A	R410A	R410A	R410A	R410A
Heat Recovery	Option	Option	Option	Option	Option	Option	Option	Option
Free Cooling System	Option	Option	Option	Option	Option	Option	Option	Option

Factory Installed Options

Unit Options

Integrated Free-Cooling
Low Temperature Brine
Low Ambient Operation
Extreme Low Ambient Operation
High Ambient Operation
Wide Ambient Operation
Ice Making
Frost Prevention Kit
Expansion Tank
Vibration Isolators
Sound-reduction Packages
Suction Shutoff Valves
Liquid Line Solenoid Valve
Remote Evaporator
Evaporator Inlet Strainer
Double Evaporator Insulation
Complete Coat Condenser Coil
Corrosion Protected Condenser Coil
Metal Mesh for Condenser Coil Protection
Total Heat Recovery or Partial Heat Recovery
Hybrid Falling Film Evaporator
Integrated Pump Packages
Condensate Overflow Switch
High Efficiency Inverter Compressor
High Efficiency EC Fan
High Fault Short Circuit Current Rating
Microchannel Condenser Coil
Stainless Steel Heat Exchanger
Stainless Steel Frame
Flanged Water Connection Kit

Controls Options

Modbus, BACnet Communications Interface
Withair® Wireless Components
Variable-speed drive
Intelligent Equipment
Door Mounted User Display
Remote User Interface
Fault Detection & Diagnostics
Flow Switch
Remote Input
Remote Output

Electrical Options

Quick Start and Fast Loading
Circuit Breaker
High Short Circuit Current Rating
Ground Fault Protection
115V Convenience Outlet
Power Connections
Multi-Point Power with Disconnect Switch

Resources

Name	Size	Download
Withair® Water-Cooled-Chillers-Line-Card.pdf	606KB	Download
Withair® Air-Side-Products-Line-Card.pdf	270KB	Download
Withair® Ground(Water)-Source-Heat Pumps-Line-Card.pdf	786KB	Download
Withair® Air-Cooled-Heat Pumps-Line-Card.pdf	1.03MB	Download
Withair® Air-Cooled-Chillers-Line-Card.pdf	929KB	Download