PolyTherm™ / Model MWS
Thermafit™ Water-source Modular Multi-pipe Unit
![Thermafit™ PolyTherm™ water-source modular multi-pipe unit [Model MWS]](/content/dam/Trane/Commercial/global/products-systems/equipment/chillers/re-branded-arctic-chillers/02_Polytherm_v01.png)
PolyTherm™ / Model MWS
Thermafit™ Water-source Modular Multi-pipe Unit
Simultaneous heating and cooling
- 30-60T (60-480T banks) 450 MBH to 7,200 MBH
- Expandable up to 10 modules
- Provides all electric simultaneous heating and cooling
- Available with Low GWP 454B Refrigerant
- Meets ASHRAE 90.1 for cooling
- While in simultaneous mode, combined heating and cooling efficiencies up to 28 EER can be achieved
- Ideal for geothermal applications.
- Overall system volume of glycol and/or chemical treatment is greatly reduced, saving significant operating costs
- Year-round system efficiency enhancement of chilled water and hot water loops by eliminating glycol mixing
- Any module can operate in either cooling mode, heating mode, or simultaneous heating and cooling mode to meet real-time system demand
- Compact module size fits through standard doors and elevators for ease of rigging into tight equipment rooms
- Provides up to 135°F leaving water temperature to support year-round heating.
- 6-pipe design features three independent water loops eliminating the need for extra heat exchangers and pumps
Why Choose Thermafit Modular Chillers

Ultra Efficient
- Year-round system efficiency enhancement of chilled water and hot water loops by eliminating glycol mixing
- While in simultaneous mode, combined heating and cooling efficiencies
up to 28 EER can be achieved

Move decarbonization forward
Replace boilers that burn fossil fuels with an energy efficient electrified heating source. Thermafit multi-pipe units enable electric heating and cooling to get you one step closer to making net-zero goals happen and meet changing building codes and regulations for electrification.
