Chillers and liquid chillers
Propane chillers · R-290
Propane chillers: GWP 3, very good efficiency and outside the HFC phase-down, designed for a flammable refrigerant.
Applications
What it solves.
Propane (R-290) is a natural hydrocarbon: it does not deplete the ozone layer, has a GWP of 3, working pressures similar to R-22 and very good heat transfer. It is highly flammable (class A3), so we design these chillers with a small charge, no ignition sources near the circuit, leak detection and, as a rule, for outdoor installation.
- Chilled water for processes and air conditioning with a natural refrigerant.
- Companies that want to move away from HFCs without switching to an ammonia installation.
- Small and medium capacity units installed outdoors.
Configurations
A configuration tailored to your application.
Technical selection defines the equipment and its integration with the process.
Designed for a flammable refrigerant
Circuits with the smallest possible charge, electrical components that do not spark in the refrigerant area and a control panel separated from the refrigeration circuit.
Detection and ventilation
A leak detector stops the unit and, if the compressor is in a closed enclosure, starts explosion-proof ventilation. Pressure relief discharges upward and away from ignition sources.
Outdoor installation
In the open air, safety standards (EN 378, ISO 5149) are less restrictive on charge than in a machine room. For indoor installations, the charge and the room are defined through a risk assessment.
Indirect circuit
The propane stays in the chiller and cooling reaches the plant through water or glycol: no flammable refrigerant in work areas.
Technical data
Reference values.
Propane (R-290)
Properties that shape the design of a propane chiller.
| Property | Value |
|---|---|
| ASHRAE 34 safety class | A3: lower toxicity, higher flammability |
| GWP (100 years) | 3 |
| Ozone depletion potential | 0 |
| Boiling point at atmospheric pressure | −42 °C |
| Working pressures | Similar to R-22 |
| Materials | Copper and steel, mineral oils |
| Density relative to air | Heavier: a leak collects low down |
Propane is not covered by the Kigali Amendment HFC phase-down.
Selection
How we define the solution for your process.
We start from what you need to achieve and your facility conditions. We guide you through defining requirements and selecting an appropriate configuration. You do not need to have all this data to start the conversation.
What we evaluate during technical definition
- Location
- Outdoors or machine room, distance to openings, drains and ignition sources.
- Charge and capacity
- Required capacity and number of circuits to keep each circuit's charge low.
- Permits
- Local requirements, fire department and insurer for equipment with flammable refrigerants.
Documentation
Technical documentation.
Request technical documentation for the configuration required by your process. Tell us about your application and operating conditions to guide the inquiry.
Request technical documentationEngineering and integration
Scope is defined with you.
From equipment selection to integration, installation, and commissioning, we agree on what the project needs and how it connects to your facility. Control systems and after-sales service are integral parts of that conversation.
What we can undertakeWithin the same system
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