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Commercial

Tranquility® 18 (SR) Versatile Single-Stage Series

HEATING CAPACITY
8300 - 68000 Btuh
COOLING CAPACITY
6100 - 60200 Btuh
AVERAGE COP
4.85
AVERAGE EER
14.95

The Tranquility® 18 (SR) Versatile Single-Stage Series delivers exceptional performance in water-source heat pump applications, featuring environmentally-friendly R-454B refrigerant and exceeding ASHRAE 90.1 efficiency standards. With a range of sizes from 006 (½ ton) to 060 (5 tons), it includes advanced options for optimized airflow and a quiet operation design.

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  • Overview
  • Features
  • Specs
  • Resources

Overview

The Tranquility® 18 (SR) Versatile Single-Stage Series is designed to provide exceptional performance in water-source heat pump applications. It features environmentally-friendly R-454B low Global Warming Potential (GWP) refrigerant and exceeds ASHRAE 90.1 efficiency standards, making it a leader in energy efficiency. The unit offers a range of configurable options, including high-efficiency EC motors and advanced controls for optimized airflow. Additionally, it includes standard features such as a sound-absorbing insulation system and a unique double-isolation compressor mounting for quiet operation. With sizes ranging from 006 (½ ton) to 060 (5 tons), the Tranquility SR is suitable for various installation needs.
Tranquility 18 SR Versatile Single-Stage Series - Horizontal - size 024 - and Vertical - size 036 shown - Right

Features

Standard Features

  • Sizes 006 (½ ton, 1.8 kW) through 060 (5 tons, 17.6 kW)
  • Refrigerant Detection System (RDS) (mandatory on size 060, optional feature for sizes 006-048)
  • CXM2 Communicating Controls for reduced startup, commissioning, and service time
  • Sound-absorbing glass-fiber insulation
  • Unique double-isolation compressor mounting for quiet operation
  • Field-convertible discharge-air arrangement for horizontal units
  • PSC three-speed fan motor (two-speed for 575V)
  • Eight standard safety features
  • Non-corrosive polymer drain pan

Configurable Options

  • High efficiency Constant Volume (CV) or Constant Torque (CT) EC motors
  • DXM2.5 Advanced Communicating Controls for maximized airflow control when paired with CV EC blower motors
  • BACnet, Modbus, and Johnson Controls N2 options for Building Management Systems (BMS)
  • Hot Gas Reheat for humidity management
  • Motorized water valves boost efficiency by stopping water flow when inactive
  • Internal water pump for single-pipe systems
  • Domestic Hot Water Generator (HWG)
  • Waterside Economizers for energy savings
  • Hybrid Hydronic Heating

Performance Specifications

Heating Air Flow Rate 
Coming soon
Cooling Air Flow Rate 
275 - 2000 CFM
Full Load WLHP Heating Source Flow Rate 
2 - 14 GPM
Full Load WLHP Cooling Source Flow Rate 
2 - 14 GPM
Full Load WLHP Heating Capacity Range 
8300 - 68000 Btuh
Full Load WLHP Cooling Capacity Range 
6100 - 60200 Btuh
Full Load WLHP Heating COP Range 
4.5 - 5.1
Full Load WLHP Cooling EER Range 
13.4 - 16.4
Full Load WLHP Heating COP Avg 
4.85
Full Load WLHP Cooling EER Avg 
14.95
Refrigerant 
R-454B

Resources

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