ES Series - Two Stage Compact
ES Series - Two Stage Compact
Water Source Heat Pump - Water-to-Air

ES Series - Two Stage Compact

One of the industry's most ultra-efficient units providing powerful performance.

At a glance
  • Ultra Efficiency
  • 2 to 6 tons
  • Quiet Operation
  • Service Friendly

The Bosch ES 2-stage, water-to-air heat pumps offer high efficiency, value added features and dual capacity with standard features like a two speed scroll compressor and an ECM constant airflow fan motor. Features like this give you the flexibility, performance and quiet operation needed to exceed the expectations of your clients.

• Floating Compressor Base - Reduces vibration and noise transmission from the compressor to the structure
• Closed-cell Foam Insulation (option) - Helps to provide cleaner, fiber-free air and reduces sound transmission
• Compressor Blanket (option) - Offers optimum low sound levels

• Blower Inlet Ring - Allows quick servicing of blower fan motor without disassembly of blower housing
• Insulated Bulkheads - Separates the compressor and blower sections, allowing the unit to be serviced easily during operation
• Schrader Charging Valves - Facilitates service diagnosis by allowing the connection of refrigerant hoses quickly and securely

• Galvanized Steel Cabinet - Provides strength and corrosion protection against the elements
• Stainless Steel Drain Pan - Resists cracking and corrosion which provides long-lasting reliability for condensate collection
• Cupro-nickel Coaxial Heat Exchanger (option) - Protects against corrosion when water conditions are of low quality

• Flow Proving Switch (option) - Prevents the operation of the compressor should the water supply fail
• Unit Protection Module (UPM) - Monitors the unit operation and safety controls that protect the unit
• Dual Refrigerant Freeze Sensors - Monitors if refrigerant temperatures reach freeze limits and disables the compressor to protect it and prevent nuisance trips