Commercial

Tranquility® 24 (SZ) Versatile Two-Stage Series

HEATING CAPACITY
28400 - 67200 Btuh COOLING CAPACITY
24000 - 59000 Btuh AVERAGE COP
4.83 AVERAGE EER
14.93

The Tranquility® 24 (SZ) Versatile Two-Stage Series by ClimateMaster is an exceptionally efficient and quiet geothermal heat pump designed for residential applications, available in sizes from 2 to 5 tons. With features like a modulating water valve and Energy Star Certification, it emphasizes eco-friendly performance and operational efficiency.

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Overview

The Tranquility® 24 (SZ) Versatile Two-Stage Series by ClimateMaster is designed for residential applications, offering sizes ranging from 024 (2 tons) to 060 (5 tons). This series is recognized for its exceptional efficiency ratings, quiet operation, and flexibility in applications, surpassing ASHRAE 90.1 standards. Utilizing R-454B refrigerant, it emphasizes eco-friendly performance and is Energy Star Certified. Key features include a vFlow® unit-integrated modulating water valve, variable-speed water pump, and a factory-installed compressor soft-starter, all aimed at optimizing energy use and operational efficiency. The DXM2.5 Advanced Communicating Controls enhance startup and service processes, making it a reliable choice for heating and cooling needs.

Tranquility 24 SZ Versatile Two-Stage Series - Horizontal and Vertical Units shown - Right

Features

Standard Features

Sizes 024 (2 ton, 7 kW) through 060 (5 tons, 17.6 kW)
Refrigerant Detection System (RDS) (mandatory on size 060, optional feature for sizes 024-048)
DXM2.5 Advanced Communicating Controls for reduced startup, commissioning, and service time
Part-load operation significantly lowers annual operating costs
Field-convertible supply-air arrangement for horizontal units
Intelligent variable speed Constant Volume (CV) EC blower motors for precise airflow control and soft-start feature
Unique double-isolation compressor mounting with vibration isolation for quieter operation
High-efficiency rotary compressors for reliable and efficient operation
Two-piece chassis/cabinet design for ease of installation and maintenance
Galvanized steel cabinet with durable Polar Ice powder coat finish for long-lasting protection

Configurable Options

vFlow® unit-integrated modulating water valve for maximum water-flow control (replaces traditional motorized water valve and autoflow regulator)
vFlow unit-integrated variable-speed water pump
Factory-installed compressor soft-starter
Integrated power disconnect
Domestic Hot Water Generator (HWG)

Performance Specifications

Heating Air Flow Rate

Coming soon

Cooling Air Flow Rate

800 - 1900 CFM

Full Load WLHP Heating Source Flow Rate

6 - 14 GPM

Full Load WLHP Cooling Source Flow Rate

6 - 14 GPM

Full Load WLHP Heating Capacity Range

28400 - 67200 Btuh

Full Load WLHP Cooling Capacity Range

24000 - 59000 Btuh

Full Load WLHP Heating COP Range

4.6 - 5.3

Full Load WLHP Cooling EER Range

14 - 15.5

Full Load WLHP Heating COP Avg

4.83

Full Load WLHP Cooling EER Avg

14.93

Refrigerant

R-454B

Resources

“With our research, ClimateMaster is number one. We don’t have any outside units—you can sit on the back porch without the unit clicking on or the fan running in the summertime. This being my last house, we really checked into geothermal, and it’s been the perfect solution.”

BrentHomeowner

“Now I’ve got a certified home that is 78% more energy efficient than my neighbors and 48% more efficient than new builds on the market today. I’m saving about $1,750 to $1,800 a year, and as a bonus, I get free hot water as a byproduct of my geothermal system. It’s quiet—I can hear my neighbors’ air source heat pumps, but they don’t hear mine.”

ChadResidential Professional & Homeowner

“We have geothermal—our neighbors don’t, and I know they wish they did. It’s a clean heat, not as drying to the skin, and you can feel the difference. In 6.3 years, we’ll recoup our investment, and after that, it’s all savings. Just plain facts—it saves money. ClimateMaster was the right choice: professional, customer-oriented, and easy to work with.”

PamelaHomeowner

Tranquility® 24 (SZ) Versatile Two-Stage Series

Overview

Features

Standard Features

Configurable Options

Performance Specifications

Resources

LC3007

97B0075N35

LC3003

REVIT-SZH

REVIT-SZV

Eng-Spec-SZ

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