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

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Air-to-Water Scroll Heat Pumps

Capacity Range: 20 to 160 tons, 50 and 60 Hz
Refrigerant: R-410A, R-454B
Compressor Type: Hermetic Scroll
Heating fluid temperatures up to 60℃

Compact design and smaller footprint
Multi-system design and wear-and-tear management technology
Unique flexibility for heat recovery or dry cooler applications
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
Widely operation range: at cooling 5°C ~ 48°C, at heating -15°C ~ 48°C
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

R410A Classical Modular Unit

The new generation environment-friendly modular air-to water heat pump is based on years of experience in R&D and design, which is greatly improved in aspects of the structure, system and microcomputer control technology, providing wider operation range of refrigeration and heating, and higher adaptability to applications with requirements on comfort and technology.
Perfect Combination for Small Tonnage Applications

Modular Air to Water Heat Pump 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.
Inherently More Efficient

Heat pumps use electricity to move energy up to a higher temperature to cool or heat the space. Because they move heat rather than generate heat, they can be three-times* more energy efficient than other forms of electric heating. In cooling mode, they move heat inside the building to outside. In heating mode, a reversing valve changes the flow of energy and moves outside energy (even if its cold outside) to inside the building.
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® heat pumps are continuously optimized for efficiency and uptime.

Models

co Specifications	W01R1-72	W01R1-105	W01R1-140	W01R1-175	W01R1-210	W01R1-280	W01R1-363	W01R1-565
Capacity (Ton)	20	30	40	50	60	80	100	160
EER (kW/kW)	3.35	3.36	3.33	3.35	3.36	3.38	3.38	3.35
COP (kW/kW)	3.69	3.61	3.58	3.67	3.65	3.66	3.65	3.65
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	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B	R-410A, R-454B
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 Attenuation
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® Packaged Rooftop & Split DX Systems-Line-Card.pdf	550KB	Download
Withair® Solutions Offering-Line-Card.pdf	4.00MB	Download
Withair® HVACR SYSTEM SOLUTIONS OFFERING_2025 Version.pdf	3.54MB	Download
Withair® Water-Cooled-Chillers-Line-Card.pdf	483KB	Download
Withair® Air-Cooled-Chillers-Line-Card.pdf	679KB	Download
Withair® Air-Cooled-Heat Pumps-Line-Card.pdf	721KB	Download
Withair® Ground(Water)-Source-Heat Pumps-Line-Card.pdf	502KB	Download
Withair® Industrial Process Cooling & Heating Systems-Line-Card.pdf	506KB	Download
Withair® Air-Side-Products-Line-Card.pdf	1.69MB	Download