DJDD-500P 500 Pints/Day Ceiling Mounted Grow Room Dehumidifier
High-Capacity Humidity Control for Grow Rooms, Greenhouses & Vertical Farms
- Nominal dehumidification: 500pints/day (27℃,RH60%)
- Circulating air flow: 2800m³/h
- Humidity control range: 40%-95%
- Power supply: 380V/50Hz
- Rated input power: 2.6KW
- Rated input current: 4.3A

Product Overview
The TOJJE DJDD-500P is a 500 PPD ceiling mounted grow room dehumidifier designed for indoor cultivation facilities, smart vertical farms, greenhouses and other controlled growing environments. With a nominal dehumidification capacity of 500 pints per day at 27°C and 60% RH, the DJDD-500P provides high-capacity moisture removal for large cultivation spaces where stable humidity control is essential. The unit delivers 2800 m³/h circulating airflow and supports a 40%–95% RH humidity control range, with humidity control accuracy of approximately ±3% RH. Its ceiling-mounted design helps save valuable floor space, while continuous hose drainage supports long-term operation. For automated cultivation environments, the DJDD-500P provides 24V dry contacts compatible with TrolMaster controllers, allowing it to be integrated into suitable grow-room environmental control systems.
Why Choose the DJDD-500P
500 PPD High-Capacity Dehumidification
The DJDD-500P provides a nominal dehumidification capacity of 500 pints/day at 27°C and 60% RH, making it suitable for larger grow rooms, vertical farms and other high-humidity indoor cultivation environments.
2800 m³/h Circulating Airflow
With 2800 m³/h circulating airflow, the DJDD-500P continuously processes air within the controlled environment to support moisture removal throughout the room.
Precise Humidity Control
The unit supports a 40%–95% RH humidity control range with approximately ±3% RH control accuracy, helping maintain a more stable humidity environment for controlled cultivation.
Ceiling-Mounted Installation
The ceiling-mounted configuration helps keep valuable floor space available for cultivation equipment, plants and other facility infrastructure.
Continuous Condensate Drainage
A hose connection allows continuous condensate drainage during extended operation, reducing the need for frequent manual water removal.
TrolMaster-Compatible Control
The unit provides 24V dry contacts compatible with TrolMaster controllers, supporting integration with suitable environmental control systems used in indoor cultivation.
Key features include:
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High efficiency / energy saving / less power consumption without failure
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Automatic restart on and off with memory function
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Continuously drainage in 24 hours by tube
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High precision humidity control with ±3%RH, ambient humidity controlled >RH45% based on temp
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Compressor with 3 minutes delay - starting protection
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Auot-defrosting function
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High and Low pressure protection
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Malfunction display Error code timely
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Easy operation and simple installation on ceilin
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24V dry contacts, be compatible with Trolmaster controller
Product Specifications
Ceiling mounted dehumidifier is special designed for grow facility room and smart vertical farms , well humidity controlled to fit plants growth
| Model number | DJDD-500P |
| Nominal dehumidification(27℃,RH60%) | 500PPD |
| Power supply | 380V/50Hz |
| Rated input power | 2.6KW |
| Rated input current | 4.3A |
| Circulating air flow | 2800m³/h |
| Humidity control range | 40%-95% |
| Drainage way | Hose connection |
| Working temperature range | 5~38°C |
| Refrigerant | R407c |
| Noise | ≤65db |
| Compressor type | Rotary |
| Warranty | 1 Year |
| Standard packaging | Wooden case |
| Certification | CE |
| Net weight/Gross weight | 140kg/175kg |
| Machine size | 1300x800x715 mm |
| Package size | 1400x870x870 mm |
How Does the DJDD-500P Work?
The DJDD-500P uses a refrigeration-based dehumidification process to remove moisture from the air.
Moist air from the growing environment enters the unit and passes across the evaporator coil. When the air temperature is reduced below its dew point, water vapor condenses on the evaporator surface.
The condensed water is collected and discharged through the drainage system, while the dehumidified air passes through the condenser section before being returned to the indoor environment.
The unit continues operating according to the humidity control setting until the required humidity level is reached.
Basic dehumidification process:
Moist Air → Evaporator → Condensation → Water Drainage → Reheated Dry Air → Grow Room
500 Pints/Day Ceiling Mounted Grow Room Dehumidifier Applications
Grow Room Dehumidifier for Indoor Cultivation
Humidity control is an important part of indoor cultivation because plant transpiration, irrigation and environmental conditions can introduce significant moisture into a growing space. The DJDD-500P grow room dehumidifier continuously removes moisture from the air to help maintain the target relative humidity selected by the operator. Its 500 PPD capacity, 2800 m³/h airflow and ceiling-mounted configuration make it suitable for larger controlled cultivation environments where floor space and humidity management are important considerations.
The unit can be used in applications such as:
Indoor grow rooms
Commercial cultivation facilities
Smart vertical farms
Greenhouse growing areas
Plant propagation rooms
Controlled agricultural environments
Installation Considerations
Frequently Asked Questions
The DJDD-500P has a nominal dehumidification capacity of 500 PPD (pints per day) at 27°C and 60% RH.
Yes. The DJDD-500P is designed for grow facility rooms, indoor cultivation environments and smart vertical farms where controlled humidity is required.
Yes. The DJDD-500P is a ceiling mounted dehumidifier designed to save floor space in controlled indoor environments.
The specified humidity control range is 40%–95% RH, with approximately ±3% RH control accuracy.
The DJDD-500P provides a circulating airflow of 2800 m³/h.
The unit uses a hose connection for continuous condensate drainage, making it suitable for extended operation.
The DJDD-500P uses R407C refrigerant.
The specified working temperature range is 5–38°C.
Yes. The DJDD-500P can be considered for greenhouse and controlled horticultural environments where high-capacity humidity removal is required. TOJJE also presents a real DJDD-500P greenhouse horticulture customer case on its website.
Documents
| Datasheet | |||||
|---|---|---|---|---|---|
| File | Language | Format | Sizet | Last updated | Downloads |
| DJDD-500P | English | 287kb | 21/03/2024 | ||
















