- Overview
- Features
- Specs
- Resources
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.
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
Performance Specifications (WLHP, ECM)
Full Load
Heating Capacity
28400 - 67200 Btuh
Cooling Capacity
24000 - 59000 Btuh
COP Range
4.6 - 5.3
EER Range
14 - 15.5
Average COP
4.83
Average EER
14.93
Heating Source Flow Rate
6 - 14 GPM
Cooling Source Flow Rate
6 - 14 GPM
Heating Air Flow Rate
Coming Soon
Cooling Air Flow Rate
800 - 1900 CFM
Part Load
Heating Capacity
19900 - 47300 Btuh
Cooling Capacity
17500 - 42000 Btuh
COP Range
5.1 - 5.7
EER Range
15.2 - 17.4
Average COP
5.37
Average EER
16.53
Heating Source Flow Rate
4.3 - 10.5 GPM
Cooling Source Flow Rate
4.3 - 10.5 GPM
Heating Air Flow Rate
600 - 1500 CFM
Cooling Air Flow Rate
600 - 1500 CFM
