Ultra-Efficient Small Air-To-Water Heat Pumps / Chillers Air Conditioning & Heating & Hot Water

 
 

Indoor: Heating, Cooling & Hot Water Solutions

Heating
Cooling
Hot Water
Radiant (Heating and/or Cooling)
Ductless Fan Coil Units
Ducted Systems
Mini-Duct (Concealed Ceiling)
Use any or all together.

Ceilingceling mount fan coil unit for chillerFloor
Floor fan coil unit with feet, for chiller heat pump

Low/Mid Walllow wall or floor mount chiller fan coil unit

Radiant Heating & Cooling
Beyond the well known advantages of radiant heating, could radiant cooling work well in your application? Contact us for a radiant cooling evaluation.

radiant heating radiant cooling

Ducted System?
Yes, it can plug into an existing duct system if you like. We have over 100 sizes and configurations of ducted & mini-duct air handlers

pic of ducted hydronic air handler for chiller or boiler concealed ceiling fan coil/ casette type / mini-duct fan coil pic
ceiling mount casette type fan coil unit pic


Also, use Chiltrix for Water Heating w/ our Domestic Hot Water Tanks
  image of water heating tank for use with air to water heat pump, shows example of internal coil small pic dhw80 indirect coil dhw hot water tankk for solar, boiler, heat pump

  • Ductless Room Fan Coils- 4 Sizes of Ductless Units For Wall, Ceiling, Floor - from 1/4 Ton to 1 Ton
  • Concealed Ceiling Units 3/4 Ton to 3 Tons
  • Central Duct Air Handlers 1 Ton to 5 Tons Upflow & Horizontal
  • Radiant Hydronic Cooling & Heating
  • DHW Water Heating
  • Buffer Tanks
  • Integrates with Boilers, Solar.
  • Radiant Cooling Controller Upgrade


CX34 Air To Water Heat Pump

 

chiller heat pump outdoor unit

 

CX34 2 Tons Cooling/ 2.8 Tons Heating. R410a Chiller Heat Pump.

Cooling 26.12 kBTU
IPLV.IP EER 23.87 kBtu/kw

Cooling 30.05 kBTU
NPLV.IP EER 30.88 kBtu/kw


Heating COP 3.92
Cap. 33.81 kBtu

See Details

 

CX50 Air To Water Heat
Pump

CX50 Ait to water heat pump

CX50 3.5 Tons Cooling/ 4.75 Tons Heating. R32 Chiller Heat Pump

Cooling 41.29 kBtu
IPLV.IP EER 21.18
kBtu/kw

Cooling 48.90 kBtu
NPLV.IP EER 30.16 kBtu/kw

Heating COP 4.62
Cap. 56.98 kBtu

See Details

See The All-New CX35 Here

Chiltrix Air To Water Heat Pumps Certifications & Features

  • ŸCooling Capacity and Efficiency Certified by AHRI
  • Heating Capacity and Efficiency Certified by TUV
  • European Rating A+++
  • Certified by California Energy Commission
  • UL 60335-1-40
  • UL 60335-2-40
  • CSA 22.2
  • Modular: Stackable up to
    15 Tons Heating / 10 Tons Cooling
  • Up to 14 ductless indoor units per outdoor unit.
  • No Lineset length limits, no vertical distance limits
  • No refrigeration license needed for installation.
  • GET FREE WATER  HEATING!
  • MODBUS Enabled

More product and technical information, performance maps, and detailed specifications on the CX-series air to water at pumps is here.

heat pump chiller controller main screen- psychrologix

Psychrologix™ w/
Dynamic Humidity Control

Psychrologix™ add-on controller actively manages humidity and continuously optimizes efficiency up to EER 31 and higher. Controller dynamically manages compressor speed, pump speed, condenser fan speed, loop temperature, and Includes several additional automated and programmable features. See Details

 

Dynamic Outdoor Reset

air to water heat pump manufacturer chiltrix - outdoor reset curve

Dynamic Outdoor Heating Reset: Allows the CX34 to Operate above it's official heating COP ratings by dynamically adjusting operating temperature based on outdoor conditions. See Outdoor Reset Control

CX34 & CX50 ultra-efficient AHRI-Certified reverse cycle air to water heat pump chillers w/ DC inverter compressor, DC inverter pump, DC inverter condenser fan, and DC inverter fan coils. MODBUS capable. Patent pending. See System Overview (2 pages, fast read). See the Air to Water heat Pump Technology Page

For heating & cooling with ductless, ducted/central, hydronic floor heating (and/or cooling), concealed ceiling, domestic hot water - any or all can be used in combination. Ductless configuration eliminates duct loss and duct installation cost. Stackable to 2 / 3 outdoor units per system. Sealed, self-contained, all refrigerant stays outdoors. No lineset limits, PEX installation with no refrigeration license needed.

Save 70% on your annual water heating costs. Let the Chiltrix chiller built-in water heating function be your primary source of hot water and get a savings of 70% or more on water heating costs.


Anti-Corrosion technology is used on all outdoor units, protects against salt air in coastal environments. See anti-corrosion details.

V18 Variable Power Backup Heater offers precise control. See inline tankless backup heat solution for air-to-water heat pumps.

*Cooling performance is certified in accordance with the AHRI Air-Cooled Water-Chilling Packages Certification Program, which is based on AHRI Standard 550/590 (I-P) and AHRI Standard 551/591 (SI). Certified units may be found in the AHRI Directory at www.ahridirectory.org Heating capacity, efficiency and SCOP is certified by TUV Rheinland under IEC EN 14825.

The Chiltrix small air cooled heat pump chiller compressors are fully variable in capacity and operation is continuously adjusted to match the required heating or cooling output, avoiding on/off cycling and wasted energy. When measured on an annual basis, the average energy savings produced by the Chiltrix dynamic capacity and control system can exceed 50%.

Chiltrix includes a variable speed DC pump for the supply side circulation. When full water flow is not needed due to off-peak capacity requirements, the water pump slows down and uses less energy. The variable speed pump and variable speed compressor work in tandem with the system controller using a special algorithm to keep the compressor and pump both working at the optimum speed. The variable speed condenser fan is controlled in a similar manner. This allows all of the consumers of electrical power within the chiller to operate at the lowest power level to meet the current load. Dynamically controlling the water pump speed and compressor speed independently of each other helps us to achieve the highest levels of performance. In addition, Chiltrix offers DC-Inverter indoor fan coil units, further reducing electrical power consumption (along with lower sound levels and longer lifespan).

Working together, the variable speed compressor, variable speed pump, variable speed condenser fan, and variable speed indoor units all operate at the most efficient level of power consumption possible to meet the demand. From 25% to 100%, the system is always exactly the right size for the job. Under varying real-world conditions the CX34 chiller can efficiently operate at the capacity needed and can achieve up to 50% or more in electrical savings each year compared to others in its class. See the details of Chiltrix high efficiency chiller heat pump technology.

The Psychrologix™ psychrometric chiller controller dynamically manages humidity and automatically adjusts the parameters of the eat pump chiller in real time, for an off-the-charts increase in efficiency (above its already high rating) when dehumidification is not needed. DHC (Dynamic Humidity Control) can automatically lower the indoor unit coil temperatures to quickly remove any humidity increase. When humidity is within acceptable limits, the system will dynamically reconfigure itself to the most efficient possible operating parameters allowing the chiller to run well above its rated efficiency. The Psychrologix™ chiller control option can manage up to three chillers. See the Psychrologix™ DHC controller details here. See the detailed chiller controls white paper here.

The Chiltrix air-to-water heat pump can also connect to a hot water heat exchanger tank (indirect tank) and provide domestic hot water in summer or winter while still handling heating and cooling loads. Save up to 70% or more each year on your water heating costs using an ultra-high efficiency heat pump to heat your water. Requires a heat exchanger/indirect coil tank (boiler or solar tank). Built-in safety: Automatic Hot Water Tank Anti-Legionella Function

More product and technical information, perform ace maps, and detailed specifications on the CX-series air to water at pumps is here. https://www.chiltrix.com/chiller-technology.html

Images are representative only. Specifications subject to change.

CLICK TO SEE SPECIFICATIONS, PRICE LIST, SYSTEM DESIGNS, DOCUMENTS     See EER Comparison Chart

See Frequently Asked Questions        Contact Us

 

 

 

energy award
EPA / ENERGY STAR
EMERGING TECHNOLOGY AWARD
Energystar emerging technology award
 

3 Consecutive 3-Year AHRI Awards!

AHRI 2018-2020
3-Year Performance Award
AHRI 2020-2022
3 Year Performance Award

AHRI 2021-2023
3 Year Performance Award

2021-2024

Ahri Performance Award

 

World's Record Efficiency
The World's Most Efficient
Air-To-Water Heat Pumps


AHRI certification logo

 

 

TUV SCOP Certification

Chiltrix CX50 Has Europe's Highest Efficiency Rating!
European test A+++ SCOP 4.77

Why does this matter here in the USA? Click for more >>>

 

Chiltrix In The News!

usa today article about chiltrix

International Business Times
IBT logo

screen capture NEWs 3 KESQ california news article about chiltrix
news 3 abc logo

Click to Watch ABC News Video (2:35)

AHR booth 5068 Orlando 2025

Extreme Energy Efficiency that Pays for Itself Quickly

Chiller (hydronic) heating and cooling is inherently more efficient, and lower electricity costs are one reason why chillers are used in all large buildings.

But, small chillers have historically been unable to provide a strong ROI due to high equipment costs and unrealized efficiency potential.

Not any more. Meet the Chiltrix modular air to water heat pump chiller family where we have systems as small as 2 tons, with a IPLV cooling >EER 22 and heating above COP 4.68. Installed system costs are about the same as for upper-middle range conventional heat pump systems.

Save 50% or more on utility costs. And you can save even more when you also use the CX34 for water heating.

This is not your daddy's chiller. See what's different:

See efficiency comparison of Chiltrix to other leading chiller manufacturers

Old news: Chillers are only for large systems of 30 tons or more. Chiltrix chillers modules start at 2 tons and can be combined for 4, 6, 8, up to10 tons cooling, up to 15 tons heating. And they are variable capacity, so they can run as low as 25% speed at times when that's all that is needed.

Old news: Chillers are expensive to buy. An installed Chiltrix air cooled chiller system costs no more than a standard AC/ heat pump system.

Old news: Chillers only provide cooling, you need a boiler for heat. Chiltrix chillers are reverse cycle chillers (heat pumps) and can provide heat down to -4F (-20C) They can also connect to an existing boiler system and serve as a lower cost primary heat source.

Old news: Chillers cannot quickly switch between heat/cool modes.
The CX34 can switch modes within
15 minutes.

Old news: Chillers require a cooling tower & have maintenance issues. Our chiller is air cooled, it uses no cooling tower, and is a sealed, maintenance free system.

Common misconception: Chillers consume water. Chiltrix chillers don't consume any water. Water is only used in the distribution loop. Cooling is performed by a Mitsubishi dual inverter compressor.

radiant cooling controller