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Air-Cooled Heat Exchangers
Gas coolers for transcritical CO2 systems, and oil coolers for hydraulic, lubricating and turbine oil. Same flat bed and V-bank platforms, tubed for the pressure and the fluid.
Best for Transcritical CO2 refrigeration and hydraulic, lubricating and turbine oil systems that need fluid held to a setpoint without water.
Oil Cooler
Hydraulic and lubricating oil held to a setpoint. Adiabatic pads and a stainless water manifold where the ambient runs past design.
Gas Cooler
Gas cooling for transcritical CO2 systems, with local fan isolators fitted at the unit.
Specifications
US units, 60 Hz power. Marked values are confirmed against the selected model before they go on a quote.
- CO2 gas cooler
- 167 to 7,885 MBH
- Gas cooler rating
- Gas 235°F in at 1,363 psi, 93°F out, 90°F ambient
- Oil cooler
- 167 to 19,780 MBH
- Oil cooler rating
- ISO VG 46, 185°F in, 140°F out, 95°F ambient
- Fans
- 36 in EC on gas coolers. 36 to 71 in on oil coolers, VFD on 49 in and up
- Tube
- Copper, stainless, cupronickel or titanium
- Design pressure
- [SPEC - CONFIRM]
- 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
KGC-V2-12x36-2400-E- KGCKGC CO2 gas cooler, KOC oil cooler
- V2Arrangement. F1 flat bed, one fan row. F2 flat bed, two rows. V1 V-bank, one row. V2 V-bank, two rows
- 12x36Fans, then fan diameter in inches
- 2400Selected capacity, MBH, at your conditions
- EFan drive. E EC fans, V VFD
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 family11 ranges
| Code | Duty | Arrangement | Fan, in | Fans | Capacity, MBH | Rated at |
|---|---|---|---|---|---|---|
| KGC-F1 | CO2 gas cooler | Flat bed, one row of fans | 36 | 1 to 8 | 167 to 2,941 | CO2 at 1,363 psi, 235 to 93°F gas, 90°F ambient |
| KOC-F1 | Oil cooler | Flat bed, one row of fans | 36 | 1 to 8 | 167 to 3,552 | ISO VG 46 oil 185 to 140°F, 95°F ambient |
| KOC-F1 | Oil cooler | Flat bed, one row of fans | 49 | 1 to 8 | 256 to 6,896 | ISO VG 46 oil 185 to 140°F, 95°F ambient |
| KOC-F1 | Oil cooler | Flat bed, one row of fans | 71 | 1 to 7 | 314 to 8,547 | ISO VG 46 oil 185 to 140°F, 95°F ambient |
| KGC-F2 | CO2 gas cooler | Flat bed, two rows of fans | 36 | 4 to 18 | 532 to 6,582 | CO2 at 1,363 psi, 235 to 93°F gas, 90°F ambient |
| KOC-F2 | Oil cooler | Flat bed, two rows of fans | 36 | 4 to 18 | 594 to 7,548 | ISO VG 46 oil 185 to 140°F, 95°F ambient |
| KGC-V1 | CO2 gas cooler | V-bank, one row of fans | 36 | 1 to 10 | 276 to 5,234 | CO2 at 1,363 psi, 235 to 93°F gas, 90°F ambient |
| KOC-V1 | Oil cooler | V-bank, one row of fans | 36 | 1 to 10 | 222 to 7,254 | ISO VG 46 oil 185 to 140°F, 95°F ambient |
| KOC-V1 | Oil cooler | V-bank, one row of fans | 49 | 1 to 10 | 601 to 12,106 | ISO VG 46 oil 185 to 140°F, 95°F ambient |
| KGC-V2 | CO2 gas cooler | V-bank, two rows of fans | 36 | 4 to 28 | 1,174 to 7,885 | CO2 at 1,363 psi, 235 to 93°F gas, 90°F ambient |
| KOC-V2 | Oil cooler | V-bank, two rows of fans | 36 | 4 to 28 | 778 to 19,780 | ISO VG 46 oil 185 to 140°F, 95°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 row20 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 |
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 CO2 gas cooler?
A gas cooler is the air-cooled heat exchanger on a transcritical CO2 system. Above the critical point CO2 does not condense, so the coil cools the gas instead, at pressures far above an HFC condenser.
What capacity do the gas coolers and oil coolers cover?
CO2 gas coolers from 167 to 7,885 MBH, rated with gas at 235°F in and 93°F out at 1,363 psi in 90°F air. Oil coolers from 167 to 19,780 MBH on ISO VG 46 oil, 185°F in and 140°F out at 95°F ambient.
Why use an air-cooled oil cooler?
It holds hydraulic or lubricating oil at temperature with outdoor air alone, so there is no cooling water to pipe, treat or freeze.
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.