Commercial dehumidifier: SECARR SDA SDAF-030 from THERMOPLUS AIR

Introduction to the SECARR SDA SDAF-030 by THERMOPLUS AIR

As AirGreen, an HVAC company based in Montreal, we are proud to offer our superior HVAC services throughout the Greater Montreal area, Laval, Longueuil, South Shore, and North Shore. On our website, we have a section dedicated exclusively to commercial HVAC services, which includes the sale and installation of high-performance dehumidifiers. Among our premium products, we are pleased to present the SECARR SDA SDAF-030 dehumidifier from THERMOPLUS AIR. This comprehensive guide offers an in-depth exploration of this superior device.

Dehumidification Powerhouse

The SECARR SDA SDAF-030 is a marvel of compact design and powerful function, offering dehumidification ranging from 5.5 LBS/HR to 26.5 LBS/HR. This device goes beyond a standard dehumidifier by providing an R410A packaged indoor dehumidification unit with an option for air or water-cooled air conditioning. It is designed for light commercial and residential dehumidification applications, making it the perfect device for greenhouses, restaurants, warehouses, storage facilities, and more.

Key Features

The SECARR SDA SDAF-030 is packed with standard features that ensure its operation at optimal efficiency:

• Partial Heating Coil: This coil offers the unique ability to partially reheat the air after it has been cooled and dehumidified, contributing to an efficient and comfortable atmosphere.
• Scroll Compressor: It uses a superior scroll compressor for efficient and effective performance, ensuring powerful operation with minimal noise.
• EC Plenum Fan: To maintain a steady airflow through the unit, the fan is designed to ensure quiet operation while maximizing efficiency.
• 24V Terminal: This standard feature provides ease of installation and use.
• High and Low Pressure Switches: The device contains high and low pressure switches, adding a layer of safety and control.
• High and Low Pressure Access Ports: These access ports allow for simple system checks, ensuring the unit operates within the required pressure range.
• Thermostatic Expansion Valve: It regulates the flow of refrigerant into the evaporator, contributing to the unit's cooling function.
• Epoxy Fin Coils: They are designed to resist corrosion and facilitate heat transfer, thereby improving the unit's longevity.
• Prepainted G90 Galvanized Housing with 1/2" Insulation: The exterior of the unit is designed to withstand weather and wear, contributing to its durability.
• 2" MERV 8 Filter: This high-quality filter effectively removes airborne particles, resulting in cleaner and healthier air.

Customizable Options

In addition to its standard features, the SECARR SDA SDAF-030 offers a range of customizable options to enhance its performance and versatility:

• Full Heating Coil: An upgrade for spaces requiring more heat, perfect for colder climates or during the winter season.
• Aqua Aero Coated Coils: They offer increased corrosion resistance and improved performance, making them ideal for harsh environments.
• Copper Fin Coils: An upgrade for better heat transfer efficiency, suitable for high humidity areas.
• Non-Fused Disconnect Switch: This safety feature allows easy disconnection of power when needed.
• Compressor Soundproof Cover: It reduces operating noise, contributing to a quieter environment.
• Air-Cooled or Water-Cooled Air Conditioning: This option lets you choose between air-cooled or water-cooled air conditioning, depending on your needs.
• Humidistat / Thermostat: These controls allow easy adjustment of humidity and temperature, providing the ability to maintain a comfortable environment.
• Digital Controls with BACnet: This advanced control option facilitates integration with building management systems, allowing more efficient operation and control overall.
• 2" MERV 11 or 13 Filters: Higher-grade MERV filters are available for better air quality, suitable for environments where air quality is a priority.

Robust Design and Construction

The SECARR SDA SDAF-030 dehumidifier is compact but designed to meet light commercial and residential dehumidification requirements. Weighing 340 lbs, it is sturdy and stable, while its compact dimensions of 43 x 33.5 x 19 inches make it suitable for various spaces. The unit features 20-gauge pre-painted galvanized steel sheet construction for maximum rigidity, complemented by an 18-gauge base. The interior houses a section for coils, the condensate pan, and the fan, and another for the compressor and refrigeration components.

Detailed Specifications

Delving into the technical details of the SECARR SDA SDAF-030, it is clear that this product is built with great attention to detail, designed to provide superior air quality control in indoor environments. Here are some important specifications to note:

1.0 SDA Dehumidifier Unit Specification

The SECARR SDA SDAF-030 is a packaged system, specifically designed for indoor installation. It is specially designed for indoor air quality control, including dehumidification, air heating/cooling. The unit is ETL or CSA listed and complies with BOCA M-401 and M-402.1 codes.

The unit is fully factory assembled, wired, piped, and tested. All instruments and control devices are adjusted and preset at the factory according to design conditions. A test report is available upon request.

Each unit includes a compressor, an evaporator coil, an air reheating coil, a supply air blower with motor, and thermostatic expansion valves. It is equipped with a motor starter and operates from a digital relative humidity controller with a spatial sensor.

Optional: DDC control with BACnet communication protocol.

2.0 Piping

The piping complies with BOCA P-308-2 code for corrosion-resistant coating of copper tubes and M-702.0 for joints and connections. All refrigerant pipes must be type “L” copper and vinyl coated to prevent corrosion.

3.0 Evaporator

It must be UL or ETL listed. It must be at least 4 rows deep for maximum moisture removal capacity with an air velocity not exceeding 300 FPM, with a 3/8 inch seamless copper tube mechanically expanded with corrugated aluminum plate-type fins to ensure high heat transfer with a maximum of 12 fins per inch. The fins must have hydrophilic properties (EPOXY COATING) to provide superior corrosion protection and improve unit performance.

The coils must have a galvanized casing and be factory tested to withstand a working pressure of 650 PSIG.

4.0 Condenser (Air Heating Coil)

It must be UL or ETL listed. It must be at least 4 rows deep with a maximum of 12 fins per inch and sized to transfer all the heat captured to the air. It must have a 3/8 inch seamless copper tube mechanically expanded with corrugated aluminum plate-type fins to ensure high heat transfer. The fins must have hydrophilic properties (EPOXY COATING) to provide superior corrosion protection and improve unit performance. The coil must have a galvanized casing and be factory tested at an air pressure of no less than 400 PSIG in a water bath.

5.0 Drain Pan

Each unit must be equipped with an unlined drain pan under the entire evaporator coil to prevent condensate carryover. Flat drain pans that can retain water and promote bacterial growth are not acceptable. The drain pan must be made of 304 stainless steel with a minimum thickness of 20 gauge, have a smooth surface, and rounded corners to prevent microbial growth. The bottom of the drain pan must be insulated to meet IAQ requirements for drain pans.

5.1 Refrigeration Circuit

It must have a liquid line solder-type filter drier, a liquid and moisture indicator visible from outside the unit without removing the access panel. It must have a thermostatic expansion valve, hermetically sealed tamper-proof high and low-pressure controls, and a refrigeration service valve installed using Schrader-type valves.

Refrigeration service valves must be located outside the airflow. The suction line must be fully insulated with closed-cell insulation at least 1/2 inch thick.

6.0 Plenum Fan

The supply fan must be a single-inlet backward-curved centrifugal motorized impeller. It must be optimized for operation without a spiral casing using a special three-dimensional blade geometry with favorable acoustic behavior.

It must have an IP54 protection rating, an IE4 motor efficiency class, and an external speed controllable via 0-10 volts. The motor/impeller must be statically and dynamically balanced according to ISO 1940 standard for vertical or horizontal installation.

The motor must be an EC type, a brushless permanent magnet DC motor with electronic commutation to achieve the highest performance with the greatest efficiency.

7.0 Compressor

It must be UL or ETL listed. It must be a high-efficiency scroll-type compressor, suction-cooled, mounted on rubber isolators for vibration-free operation. It must be suitable for R-410A refrigerant and equipped with an internal check valve. The compressor manufacturer must have a wholesale parts distributor in the nearest major city.

8.0 Control Panel

It must be integrated with a separate compartment so as not to disrupt airflow during maintenance.

All wiring must be installed in accordance with UL or CSA electrical safety code regulations and comply with NFPA standards. All components used must be UL or CSA listed.

9.0 Enclosure

The unit must be constructed from pre-painted galvanized sheet metal, gauge 20, formed for maximum rigidity with an 18-gauge base. The casing must have one section for the coils, the drain pan, and the fan, and another section for the compressor and refrigeration components. The compressor and refrigeration components must be out of the airflow. A removable service panel must be provided to access all internal parts from both sides.

Each unit must have an electrical control panel integrated into a separate compartment. The unit must have an integrated air filter rack with a separate access door.

9.1 Insulation

The unit casing must be insulated with a 1/2-inch thick fiberglass insulation liner approved for an operating temperature of 250 degrees F and air velocity up to 5000 fpm. The surface must be protected against puncture with reinforcing mesh. The fire resistance must comply with NFPA 90A standard. The sound attenuation coefficient must be at least 0.86 at a frequency of 1000 Hz according to ASTM C423. The thermal conductivity must be higher than 0.232 BTU/in.h.sqft.F at 75 degrees F. The insulation must be securely fastened with approved adhesive and mechanical fasteners.

9.2 Air Filter

It must be a 2-inch disposable filter, MERV 8 rated for commercial application. The unit must have an extended filter rack with an access door.

10.0 Microprocessor Control (Optional)

The unit must be monitored and controlled with a fully programmable semiconductor controller with integrated Ethernet interfaces and BACnet communication protocol. The controller must have enough inputs (digital and analog) and outputs (digital and analog) to connect all necessary sensors to fully monitor the unit under all conditions. It must allow reading the required conditions on the air side and refrigeration side with the ability to modify setpoints on the controller or via BMS. The controller must provide specified alarms when the system is faulty.

11.0 Air-Cooled Air Conditioning (Optional)

The unit must be equipped with an air conditioning function to reject heat to an air-cooled outdoor condenser. The unit must be supplied with a dry contact rated for 24VAC/5A to operate the outdoor condenser control remotely.

The unit's refrigeration circuit must include a three-way refrigerant valve, a receiver with a pressure relief valve, and two shut-off valves to isolate the outdoor condenser.