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Dry Coolers
A dry cooler carries a water or glycol loop to the air and puts the heat outside. Flat bed or V-bank, one or two rows of fans. Where the design day needs more than air alone, adiabatic pads or spray add capacity only on the hours they run.
Best for Closed-loop process cooling, data center free cooling, engine and generator jacket water, and any site where cooling tower water use or water treatment is a problem.
Dry Cooler
V-bank and flat bed, single or double row of fans, sized to your fluid, flow and design ambient.
Adiabatic Dry Cooler
Runs dry most of the year. The pads wet only when ambient climbs past the point where air alone makes the duty, so you pay for water on the hot days and not every day.
Specifications
US units, 60 Hz power. Every rating states the condition it was taken at.
- Capacity, water
- 208 to 14,546 MBH
- Rating point
- Water 104°F in, 95°F out, 77°F ambient
- Configurations
- Flat bed or V-bank, single or double fan row
- Fans
- 36, 49, 63 or 71 in. EC, or VFD on 49 in and up. IP55 motors
- Length
- 5 to 80 ft by fan count
- Fluids
- Water, ethylene or propylene glycol, dielectric immersion fluids, oil
- Tube
- 3/8, 1/2 or 5/8 in copper, smooth or grooved. Stainless, cupronickel or titanium
- Fin
- Aluminum, AlMg, copper or stainless. Epoxy or Blygold coating
- Frame
- Powder-coated galvanized steel, aluminum or stainless
- Adiabatic
- Pre-cooling pad module or spray module
- Power
- 60 Hz. 208-230 V or 460 V. EC fans; 49 in fans and larger on a VFD
- Approval
- UL approved
Models and codes
Every unit is selected to your fluid, flow and design ambient, so the code carries the selected capacity. Frame sizes and capacity ranges are below.
How to read the code
KDC-V2-18x36-5146-E-P- KDCDry cooler for water or glycol
- V2Arrangement. F1 flat bed, one fan row. F2 flat bed, two rows. V1 V-bank, one row. V2 V-bank, two rows
- 18x36Fans, then fan diameter in inches
- 5146Selected capacity, MBH, at your conditions
- EFan drive. E EC fans, V VFD
- POption. P adiabatic pad, S spray, none if blank
60 Hz. EC fans on 208-230 V/1/60, 208-230 V/3/60 or 460 V/3/60. 49 in fans and larger on a VFD.
Capacity by frame family8 ranges
| Code | Duty | Arrangement | Fan, in | Fans | Capacity, MBH | Rated at |
|---|---|---|---|---|---|---|
| KDC-F1 | Fluid cooler | Flat bed, one row of fans | 36 | 1 to 8 | 208 to 2,211 | Water 104 to 95°F, 77°F ambient |
| KDC-F1 | Fluid cooler | Flat bed, one row of fans | 49 | 1 to 8 | 471 to 5,214 | Water 104 to 95°F, 77°F ambient |
| KDC-F1 | Fluid cooler | Flat bed, one row of fans | 71 | 1 to 7 | 676 to 6,551 | Water 104 to 95°F, 77°F ambient |
| KDC-F2 | Fluid cooler | Flat bed, two rows of fans | 36 | 4 to 18 | 809 to 5,569 | Water 104 to 95°F, 77°F ambient |
| KDC-V1 | Fluid cooler | V-bank, one row of fans | 36 | 1 to 10 | 235 to 3,583 | Water 104 to 95°F, 77°F ambient |
| KDC-V1 | Fluid cooler | V-bank, one row of fans | 49 | 1 to 10 | 621 to 7,015 | Water 104 to 95°F, 77°F ambient |
| KDC-V1 | Fluid cooler | V-bank, one row of fans | 63 | 1 to 10 | 1,358 to 14,546 | Water 104 to 95°F, 77°F ambient |
| KDC-V2 | Fluid cooler | V-bank, two rows of fans | 36 | 4 to 28 | 1,286 to 10,960 | Water 104 to 95°F, 77°F ambient |
Frames, flat bed, one fan row23 frames
| Frame | Fans | Fan, in | Length, in | Width, in | Height, in |
|---|---|---|---|---|---|
| F1-01x36 | 1 | 36 | 78 or 90 | 48 | 69 |
| F1-02x36 | 2 | 36 | 137 or 161 | 48 | 69 |
| F1-03x36 | 3 | 36 | 196 or 231 | 48 | 69 |
| F1-04x36 | 4 | 36 | 255 or 302 | 48 | 69 |
| F1-05x36 | 5 | 36 | 314 or 373 | 48 | 69 |
| F1-06x36 | 6 | 36 | 373 or 444 | 48 | 69 |
| F1-07x36 | 7 | 36 | 432 or 515 | 48 | 69 |
| F1-08x36 | 8 | 36 | 491 or 586 | 48 | 69 |
| F1-01x49 | 1 | 49 | 102 | 90 | – |
| F1-02x49 | 2 | 49 | 181 | 90 | – |
| F1-03x49 | 3 | 49 | 260 | 90 | – |
| F1-04x49 | 4 | 49 | 339 | 90 | – |
| F1-05x49 | 5 | 49 | 417 | 90 | – |
| F1-06x49 | 6 | 49 | 496 | 90 | – |
| F1-07x49 | 7 | 49 | 575 | 90 | – |
| F1-08x49 | 8 | 49 | 654 | 90 | – |
| F1-01x71 | 1 | 71 | 118 | 90 | 85 |
| F1-02x71 | 2 | 71 | 213 | 90 | 85 |
| F1-03x71 | 3 | 71 | 307 | 90 | 85 |
| F1-04x71 | 4 | 71 | 402 | 90 | 85 |
| F1-05x71 | 5 | 71 | 496 | 90 | 85 |
| F1-06x71 | 6 | 71 | 591 | 90 | 85 |
| F1-07x71 | 7 | 71 | 685 | 90 | 85 |
Frames, flat bed, two fan rows8 frames
| Frame | Fans | Fan, in | Length, in | Width, in | Height, in |
|---|---|---|---|---|---|
| F2-04x36 | 4 | 36 | 137 or 161 | 89 | 69 |
| F2-06x36 | 6 | 36 | 196 or 231 | 89 | 69 |
| F2-08x36 | 8 | 36 | 255 or 302 | 89 | 69 |
| F2-10x36 | 10 | 36 | 314 or 373 | 89 | 69 |
| F2-12x36 | 12 | 36 | 373 or 444 | 89 | 69 |
| F2-14x36 | 14 | 36 | 432 or 515 | 89 | 69 |
| F2-16x36 | 16 | 36 | 491 or 586 | 89 | 69 |
| F2-18x36 | 18 | 36 | 550 or 657 | 89 | 69 |
Frames, V-bank, one fan row30 frames
| Frame | Fans | Fan, in | Length, in | Width, in | Height, in |
|---|---|---|---|---|---|
| V1-01x36 | 1 | 36 | 60 | 45 | 68 |
| V1-02x36 | 2 | 36 | 107 | 45 | 68 |
| V1-03x36 | 3 | 36 | 155 | 45 | 68 |
| V1-04x36 | 4 | 36 | 202 | 45 | 68 |
| V1-05x36 | 5 | 36 | 249 | 45 | 68 |
| V1-06x36 | 6 | 36 | 296 | 45 | 68 |
| V1-07x36 | 7 | 36 | 344 | 45 | 68 |
| V1-08x36 | 8 | 36 | 391 | 45 | 68 |
| V1-09x36 | 9 | 36 | 438 | 45 | 68 |
| V1-10x36 | 10 | 36 | 485 | 45 | 68 |
| V1-01x49 | 1 | 49 | 76 | 79 | 93 |
| V1-02x49 | 2 | 49 | 139 | 79 | 93 |
| V1-03x49 | 3 | 49 | 202 | 79 | 93 |
| V1-04x49 | 4 | 49 | 265 | 79 | 93 |
| V1-05x49 | 5 | 49 | 328 | 79 | 93 |
| V1-06x49 | 6 | 49 | 391 | 79 | 93 |
| V1-07x49 | 7 | 49 | 454 | 79 | 93 |
| V1-08x49 | 8 | 49 | 517 | 79 | 93 |
| V1-09x49 | 9 | 49 | 580 | 79 | 93 |
| V1-10x49 | 10 | 49 | 643 | 79 | 93 |
| V1-01x63 | 1 | 63 | 110 | 106 | 121 |
| V1-02x63 | 2 | 63 | 205 | 106 | 121 |
| V1-03x63 | 3 | 63 | 299 | 106 | 121 |
| V1-04x63 | 4 | 63 | 394 | 106 | 121 |
| V1-05x63 | 5 | 63 | 488 | 106 | 121 |
| V1-06x63 | 6 | 63 | 583 | 106 | 121 |
| V1-07x63 | 7 | 63 | 677 | 106 | 121 |
| V1-08x63 | 8 | 63 | 772 | 106 | 121 |
| V1-09x63 | 9 | 63 | 866 | 106 | 121 |
| V1-10x63 | 10 | 63 | 961 | 106 | 121 |
Frames, V-bank, two fan rows13 frames
| Frame | Fans | Fan, in | Length, in | Width, in | Height, in |
|---|---|---|---|---|---|
| V2-04x36 | 4 | 36 | 107 | 89 or 110 | 97 |
| V2-06x36 | 6 | 36 | 155 | 89 or 110 | 97 |
| V2-08x36 | 8 | 36 | 202 | 89 or 110 | 97 |
| V2-10x36 | 10 | 36 | 249 | 89 or 110 | 97 |
| V2-12x36 | 12 | 36 | 296 | 89 or 110 | 97 |
| V2-14x36 | 14 | 36 | 344 | 89 or 110 | 97 |
| V2-16x36 | 16 | 36 | 391 | 89 or 110 | 97 |
| V2-18x36 | 18 | 36 | 438 | 89 or 110 | 97 |
| V2-20x36 | 20 | 36 | 485 | 89 or 110 | 97 |
| V2-22x36 | 22 | 36 | 533 | 89 or 110 | 97 |
| V2-24x36 | 24 | 36 | 580 | 89 or 110 | 97 |
| V2-26x36 | 26 | 36 | 627 | 89 or 110 | 97 |
| V2-28x36 | 28 | 36 | 674 | 89 or 110 | 97 |
Questions buyers ask
What is a dry cooler?
A dry cooler is a closed-loop heat exchanger that cools water or glycol with outdoor air. Fans pull air across a finned coil, the fluid never touches the air, and no water is evaporated, so there is no makeup water, blowdown or water treatment.
What capacity range do KUHLWERX dry coolers cover?
208 to 14,546 MBH per unit, rated with water entering at 104°F and leaving at 95°F in 77°F ambient air. Flat bed and V-bank frames, one or two rows of 36, 49, 63 or 71 in fans.
How cold can a dry cooler get the fluid?
A dry cooler cannot cool the fluid below the outdoor dry-bulb temperature. The difference between leaving fluid and ambient air is the approach. Adiabatic pads or spray pre-cool the air on the hottest hours to close that gap.
What do you need to size a dry cooler?
The heat load in Btu/h or MBH, the fluid and glycol percentage, flow in GPM, entering and leaving fluid temperature, the site design ambient, and any sound or footprint limit.
Request a quote
Send us the heat load.
Fluid, flow, ambient and the space you have. A sized selection comes back with the approval marks confirmed.
A person reads it. Send the heat load and a selection comes back.