In general, the Chiltrix air to water heat pump chiller can support any number of indoor units, that together, do not exceed the BTU capacity of the chiller(s). It is also possible to use more indoor units than the math supports, as long as you realize that they cannot all run at full speed at the same time and still deliver the expected cooling or heating. For a list of all available indoor units and their BTU ratings please see chiller indoor units. You can select HW (standard efficiency 220v) or CXI (ultra-high efficiency 120v) indoor fan coil units from Chiltrix, or use any standard chiller fan coils. Note, the HW units are mainly for export, for USA please use the CXI units.

Chiltrix has 2 sizes of outdoor units - the CX34 with 2 tons cooling, 2.75 tons heating, and the CX50 with 3.5 tons cooling and 4.8 tons heating. These are modular, meaning that they can be combined in any combination to achieve systems up to 10.5 tons cooling and 14.4 tons heating.

We offer ducted AHU (hydronic air handler units) for ducted systems.. These connect into a ducted system in the same manner as a regular AHU. You can see more information here. In addition, you can use any standard fan coil ducted unit/hydronic air handler of the correct capacity that you may purchase on the open market, they are available through most HVAC supply houses. Please contact us to help with sizing this type of unit as the sizing will be non-standard.

Once you have experienced the comfort and efficiency of in-floor heating, you may never again be satisfied with any other type of heating. Chiltrix is highly compatible with hydronic floor heating and is designed to deliver an optimum floor heating experience. Chiltrix can work with in-floor radiant or radiant in walls or ceiling, or with radiant panels. And radiant can be used in combination with other means such as fan coils, air handlers, etc.

We also have customers using the Chiltrix system for "radiant cooling" which works well when used with a dew point controller.

There is no US DOE, EnergyStar, or other SEER test or rating for air to water heat pump chillers. ATWHP units are rated under AHRI 550/590 which does not include SEER and are rated with IPLV. IPLV is to chillers what SEER is to standard air conditioners. It's the official AHRI efficiency rating and it's the only rating that matters for chillers. IPLV is the industry-standard way of measuring the overall efficiency of a hydronic (chiller) cooling system. IPLV stands for Integrated Part Load Value, it's a similar concept to SEER, where part-load performance is measured and rated so that customers can have a way to do an apples-to-apples comparison of real-world operating efficiency between various brands and models. IPLV and NPLV are specified in AHRI 550/590. See the product page or spec sheet for the IPLV / NPLV of the specific chiller. See a more complete explanation of IPLV See a chiller IPLV comparison chart that shows how we stack up against the competition.