The Tranquility® 24 (SZ) Versatile Two-Stage Series showcases superb efficiency ratings, quiet operation, and application flexibility that is synonymous with the ClimateMaster Tranquility family. The Tranquility SZ surpasses ASHRAE 90.1 efficiency standards and utilizes R-454B low Global Warming Potential (GWP) refrigerant, setting a high standard for eco-friendly performance. Due to its innovative and environmentally-conscious design, the Tranquility SZ qualifies for LEED® (Leadership in Energy and Environmental Design) points.

FEATURES

  • Sizes 024 (2 ton, 7.0 kW) through 060 (5 tons, 17.6 kW)
  • Exceeds ASHRAE 90.1 efficiency standards
  • Environmentally-friendly R-454B low-GWP refrigerant
  • Refrigerant Detection System (RDS) (mandatory on size 060, optional feature for sizes 024-048)
  • Intelligent variable speed Constant Volume (CV) EC blower motors for precise airflow control and soft-start feature
  • Part-load operation significantly lowers annual operating costs
  • Galvanized steel cabinet construction
  • Non-corrosive polymer drain pan
  • Cabinet lined with sound-absorbing glass fiber insulation
  • Unique double-isolation compressor mounting with vibration isolation for quieter operation
  • Insulated divider and separate compressor/air handler compartments
  • TXV metering device
  • Communicating Controls Powered by DXM2.5
    • Multiple communication pathways for unit access and diagnosis
      • iGate® 2 provides cloud-based remote monitoring with a Wi-Fi connected thermostat featuring a color touch-screen LCD
      • Connect directly to the system with a handheld service tool
    • Provides real-time unit operating conditions
    • Reduces startup, commissioning, and service time by providing key system temperatures electronically
    • Captures operating conditions in the event of a safety shutdown
  • Anti-short cycle and over/under voltage protection
  • High pressure, loss of charge, and condensate overflow protection
  • LED fault and status indication at controller
  • Field convertible supply air arrangement (horizontal configurations only)
  • Easy access control box
  • Flush-mounted water fittings (no backup wrench required)
  • Unit Performance Sentinel, performance monitoring system
  • Eight Standard Safety Features
  • Non-corrosive polymer drain pan












OPTIONS

  • Extended range insulation for geothermal applications
  • BACnet, Modbus and Johnson Controls N2 compatibility options for Building Management Systems (BMS)
  • Return air filter frames
  • Corrosion-resistant cupro-nickel water heat exchanger
  • UltraQuiet sound-attenuation package
  • vFlow® unit integrated variable speed water pump
  • vFlow® unit integrated modulating water valve for maximum water-flow control (replaces traditional motorized water valve and autoflow regulator)
  • Tin-plated air coils for added protection from formicary corrosion
  • Integrated power disconnect
  • Easy to clean rust prohibitive stainless steel drain pans
  • Domestic Hot Water Generator (HWG)

ACCESSORIES

  • Wi-Fi communicating thermostat with color touch-screen
  • Wide variety of thermostat options to meet your application needs
  • Various length braided hose kits with optional water valve, PT plugs, blowdown valve, flow regulator, and strainer
  • 1-inch Merv 8 filter
  • 2-inch Merv 8 or 13 filters
  • Architecturally pleasing wall sensors for connection to BMS (MPC) controls
  • Emergency electric duct heaters