Anden Digital Dehumidifier Control A77 — For A210V1, A320V1 & A320V3 Dehumidifiers

Wall-Mounted Digital Humidity Control for Anden A210V1, A320V1 & A320V3 — Precision Setpoint Management

Industrial-grade dehumidifiers like the Anden A210V1 and A320V1 are frequently installed in overhead or mechanical room locations where direct access to onboard controls is inconvenient during routine operation. The Anden Digital Dehumidifier Control A77 places precise humidity management at eye level on the wall — displaying current relative humidity clearly and allowing operators to set and adjust the humidity target without ladders, without entering mechanical spaces, and without interrupting the grow room workflow.

The A77 connects directly to the Anden A210V1, A320V1, or A320V3 via hardwired 24VAC control wiring, activating the dehumidifier with a normally open dry contact output when relative humidity rises above the setpoint plus the 3% differential, and deactivating it when conditions return to range. This prevents both unnecessary dehumidifier run time when humidity is already within target and the short-cycling that would result from activating at the exact setpoint threshold. The ±5% accuracy and 35-80% RH control range cover all humidity targets relevant to cultivation applications from early vegetative growth through late flowering.

Key Features & Benefits

• Precise 35-80% RH Control for Cultivation Applications — Covers the full humidity range used across cultivation stages, from low-humidity late-flower targets to the higher moisture conditions of propagation and early vegetative growth.
• ±5% Accuracy with 3% Anti-Short-Cycle Differential — Maintains setpoint within ±5% and uses a 3% differential to prevent rapid cycling, extending the operational life of the A210V1 and A320V1/V3 compressors.
• Remote Wall-Mounted Control for Overhead Units — Installs at a convenient eye-level location, separating the daily control interface from the dehumidifier's physical location — essential for industrial units installed overhead or in remote mechanical spaces.
• 24VAC Low-Voltage Hardwired Connection — Uses standard 24VAC control wiring compatible with Anden's A210V1, A320V1, and A320V3 models — no separate power supply required.
• Dry Contact Output — Normally Open — The dry contact normally open output provides universal compatibility with the connected Anden dehumidifiers' control input circuit.
• 5-Year Warranty — Consistent with the warranty provided on compatible Anden industrial dehumidifier units, ensuring long-term support coverage across the full control system.

Who Should Use the Anden A77 Controller

The A77 is the appropriate controller for Anden A210V1, A320V1, and A320V3 operators who need remote wall-mounted humidity management. It is included as standard with the A210V1 and A320V1/V3 dehumidifiers, but is also available as a replacement or additional unit for facilities requiring a second controller location or replacing a damaged unit. Verify your dehumidifier model before ordering — the A76 is the equivalent controller for A200V1, A300V1, and A300V3 models.

Product Specifications

Compatible Models: Anden A210V1, A320V1 & A320V3 Dehumidifiers. Voltage: 24VAC ±20%. Current: 25mA nominal, 50mA max at 24VAC. Output: Dry contact, normally open. Control Range: 35-80% RH. Accuracy: ±5% RH. Differential: 3%. Low Limit: 40°F dew point. High Limit: 99°F. Warranty: 5-Year. Product Code: #A77.

Frequently Asked Questions

Is the A77 included with the A210V1 and A320V1/V3 dehumidifiers?

Yes. The Anden A210V1, A320V1, and A320V3 each include the Model A77 remote controller as standard in the box. This listing is for the A77 as a standalone purchase — for replacement units, additional controller locations, or facilities that need a spare. If you are purchasing a new A210V1 or A320-series unit, the A77 is already included.

What is the difference between the A76 and A77 controllers?

The A76 and A77 are functionally identical controllers — same specifications, same form factor, same 5-year warranty. The only difference is compatible model designation: the A76 works with A200V1, A300V1, and A300V3 dehumidifiers, and the A77 works with A210V1, A320V1, and A320V3 units. Always verify your specific Anden dehumidifier model number before ordering to select the correct controller.

Can I use the A77 to integrate the A320V1 into an automated environmental management system?

The A77 provides local wall-mounted humidity control with automatic dehumidifier activation based on setpoint. For full integration into automated environmental management platforms (such as Growlink or TrolMaster), the A320V1's direct smart control integration port is typically used, with the A77 serving as a local display and manual override capability alongside the automated system. Consult your controller platform's documentation for specific integration wiring and configuration guidance.