Packaged Vertical Self-Contained Systems –
Extreme Retrofit Construction

Model SWT

retroDesign flexibility, durable construction, quiet operation, low installation and operating costs make Daikin self-contained indoor air conditioning systems the preferred solution for multi-story projects throughout prominent skylines like New York City.

Daikin floor-by-floor self-contained systems can provide significant installed cost savings compared to chilled water systems and can be installed as a complete system or modular systems that can be easily disassembled to negotiate narrow hallways, elevators, and doorways.

By combining high-efficiency scroll compressors, direct-expansion cooling, water-cooled condensers, water economizers and VAV control, Daikin self-contained units provide significantly higher operating efficiencies than alternative systems. Efficiencies that greatly exceed ASHRAE Standard 90.1 guidelines are the norm.

  • Pre-engineered flexibility to design systems without compromise
  • Low installation and operating costs
  • Plenum fans allow quieter operation
  • Modular construction from 20 to 130 tons
  • Controls flexibility—MicroTech® III controls with our Open Choices™ feature for easy integration with the BAS of your choice
  • R-410A refrigerant allows higher efficiency (model SWP only)
For a complete list of features for model SWT Packaged Vertical Self-Contained Systems, please refer to Daikin McQuay Catalog 865.

Specifications

Which Daikin small to mid-size water cooled chiller is best for your project?

Data Model SWT
018C 023C 028C 035C 040C
Dimensions          
Depth 52.00 52.00 52.00 52.00 52.00
Length (1, 2) 84.00 84.00 84.00 100.00 100.00
Height (1, 2) 112.75 112.75 112.75 112.75 112.75
Compressor          
Quantity 4 4 4 4 4
Evaporator Coil          
Face area (ft2) 11.8 15.3 18.9 23.3 26.3
Rows 4, 6 4, 6 4, 6 4, 6 4, 6
FPI 12 12 12 12 12
Waterside Economizer Coil          
Face area (ft2) 11.8 15.3 18.9 23.3 26.3
Rows 4 4 4 4 4
FPI 12 12 12 12 12
Maximum working pressure (psig) 400 400 400 400 400
Hot Water Heating Coil          
Face area (ft2) 9.3 12.8 16.3 20.2 23.8
Rows 1, 2 1, 2 1, 2 1, 2 1, 2
FPI 12 12 12 12 12
Electric Heat          
kW 34 34 34 34 34
Filters          
(Quantity) size
4" depth filter
(3) 20 × 20
(2) 25 × 20
(4) 16 × 25
(3) 20 × 20
(2) 25 × 20
(4) 16 × 25
(3) 20 × 20
(2) 25 × 20
(4) 16 × 25
(5) 20 × 20
(5) 25 × 20
(5) 20 × 20
(5) 25 × 20
Evaporator Fan(3)          
Quantity 1 1 1 2 2
Size 15 18 18 15 15
Minimum horsepower 5 7.5 10 10 15
Maximum horsepower 10 15 20 20 25
Minimum design cfm, CV 2950 3825 4725 5825 6575
Minimum design cfm, VAV 4720 6120 7560 9320 10,520
Maximum design cfm 7080 9180 11,340 13,980 15,780
Condensers          
Waterside working pressure (psig) 400 400 400 400 400
Minimum entering temperature (°F)
mechanical cooling
55 55 55 55 55
Minimum gpm 25 41 53 66 69
Maximum gpm 88 108 125 159 166

*Per ASHRAE Std. 575

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