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VKIN builds REHEAT three-pipe inverter climate systems for indoor cultivation — cooling, heating, dehumidification, humidification and ventilation in one unit, holding ±1°C and ±2% RH across the whole growth cycle. Hot-gas heat recovery replaces electric reheat, cutting energy use by more than 76% against a traditional combined air-handling system.
VKIN has exported into North America for 18 years and is establishing dedicated US distribution. Hydro Supply Co. is positioned on that lineup. If you have a build scheduled, talk to us now so units are allocated against your timeline rather than a waiting list.
Full DC inverter, three-pipe hot-gas reheat. One set of coils cools and dehumidifies to the humidity setpoint while the second recovers refrigerant heat to hold temperature — so you dry the room without chilling it, and without an electric reheat element. Settable 50–88°F and 30–90% RH.
18,000 Btu/h. Low-static concealed unit, five-speed DC motor.
24,000 Btu/h. Same low-static chassis, larger capacity.
36,000 Btu/h. High-static — long duct runs, MERV-13.
54,000 Btu/h. High-static, largest of the range.
| Model | UCHA-18TDC | UCHA-24TDC | UCHA-36TDC | UCHA-60TDC |
|---|---|---|---|---|
| Nominal capacity | 1.5 ton | 2 ton | 3 ton | 5 ton |
| Cooling capacity (Btu/h) | 18,000 | 24,000 | 36,000 | 54,000 |
| Cooling range (Btu/h) | 9,000–20,000 | 12,000–28,000 | 17,500–41,000 | 24,000–56,400 |
| EER2 (Btu/W) | 11.96 | 10.66 | 12.20 | 9.11 |
| Dehumidification — cooling mode DB 80.6°F / RH 60% | 139.9 pt/day | 215.0 pt/day | 273.8 pt/day | 403.7 pt/day |
| Dehumidification — constant-temp DB 80.6°F / RH 80% | 192.7 pt/day | 296.6 pt/day | 367.7 pt/day | 482.9 pt/day |
| Capacity @ 5°F (Btu/h) | 18,766 | 25,931 | 37,532 | 59,710 |
| Power supply | 208–230V · 1Ph · 60Hz | 208–230V · 1Ph · 60Hz | 208–230V · 1Ph · 60Hz | 208–230V · 1Ph · 60Hz |
Separated indoor and outdoor units, so 100% of the compressor heat stays outside the room — the reason a split beats a portable once the load gets serious. Ducted, MERV-13, 24V AC thermostat control, and compliant with California Title 24.
Split three-pipe heat recovery. 100% non-heat-emitting indoors.
Same architecture, 510 pints/day. Title 24 compliant.
| Model | UCDA-D360DCT | UCDA-D510DCT |
|---|---|---|
| Water removal (DB 80°F / RH 60%) | 350 pt/day | 510 pt/day |
| Constant-temp dehumidification | 379 pt/day | 547 pt/day |
| Water removal (DB 75°F / RH 50%) | 233 pt/day | 338 pt/day |
| Water removal (DB 65°F / RH 50%) | 128 pt/day | 185 pt/day |
| Cooling capacity (Btu/h) | 20,000 | 27,000 |
| Power input (W) | 1,750 | 2,320 |
| Efficiency (pint/kWh) | 8.7 | 9.5 |
| Energy factor (L/kWh) | 4.1 | 4.5 |
| Type / power supply | Ducted · 208–230V/1/60 | Ducted · 208–230V/1/60 |
The indoor unit carries two independent heat exchangers and two EEVs. In normal operation both exchange heat the same way. Under constant temperature-and-humidity control they split roles: one acts as the evaporator, cooling and dehumidifying toward the humidity setpoint; the other becomes a reheat coil, recovering the gaseous refrigerant from that process to bring the air back to the temperature setpoint.
A DC inverter compressor, DC fan motor and per-coil electronic expansion valves let the third-generation control algorithm modulate refrigerant flow, compressor speed and heat exchange continuously rather than cycling on and off.
Colour LCD controller as standard; 8″ HD optional. Local operation, data recording and error-code analysis.
Connect to an IoT panel or building system for multi-point environmental data and integrated control.
Remote monitoring and parameter adjustment for unattended rooms.
Runs on 165–265 VAC — tolerant of the messy power common on retrofit sites.
Intelligent refrigerant defrost keeps the evaporator from freezing and shutting the unit down.
Adjusts automatically to room temperature to cut consumption at part load.
VKIN Environment Technology Co., Ltd. was founded in 2007 and builds constant temperature and humidity control systems for indoor cultivation. Its products have been exported principally to North America for 18 years, carrying UL, ETL, cETL, AHRI, CEE, CEC and ENERGY STAR certifications.
The company holds National High-Tech Enterprise status, has accumulated 80+ patents and software copyrights, runs its own enthalpy-difference testing laboratory, and manufactures on three lines with an annual output of roughly 50,000 units.
Room dimensions, canopy area, lighting load and target temperature/RH are enough for us to size the unit and quote it. Full specifications are in the catalog. Start a quote → · Download the catalog (PDF) →
