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Welcome to Dehumidified Air Services Training

The following video series will help you understand product lines, unit operation and the controller functionality.

Dehumidified Air Solutions Product Lines

8-20 Ton Horizontal Indoor Unit without Exhaust or Purge

Overview on the cabinet design, component locations and airflow pattern of 8-20 Ton Horizontal Indoor Unit.

200 Series 4 - 6 ton

Overview on the cabinet design, component locations and airflow pattern of the 200 Series 4 – 6 ton.

200 Series 8 - 14 Ton

Overview on the cabinet design, component locations and airflow pattern of the 200 Series 8 – 14 ton.

16T-32T 200 Series Overview & Layout

Overview on the cabinet design, component locations and airflow pattern of the 16T-32T 200 series.

Large Unit Cabinet Construction

Covers the construction methods and key features of the base and cabinets of all large units.

Large Unit Return Filters & OA2

Covers the Return Damper & OA2 Damper operation and Return Filter Replacement.

Large Unit Evaporator Section

Covers the location and functions of Evaporator Coils, Filter Driers, TEV’s, Bypass Damper, Pumpdown Valves and Drain Pans

Large Unit Reheat & OA1 Section

Covers the location and function of the Reheat coils, OA1 motorized and manual “cheese grater” dampers, Heat Recovery coil and Supply Fan inlet.

Large Unit Supply Fan Section

Covers the location of the supply fan and motor and supply temp sensor.

Large Unit Compressor & Controller Section

Covers the location and functions of the controller panel, compressors, pump, flat plate condensers, and more.

Large Unit Main Electrical Section

Covers the location and functions of the main power terminals, Supply Fan VFD, compressor contractors, and more.

OACC and OAFC Main Label

Covers the information on all OACC & OAFC main labels.

OACC (Outdoor Air Cooled Condenser) Layout & Components

Overview on the design, component locations and airflow pattern of the Outdoor Air Cooled Condenser.

OAFC (Outdoor Air Fluid-Cooler) Layout & Components

Overview on the design, component locations and airflow pattern of the Outdoor Air Fluid-Cooler.

4-7T Vertical (RV)

Seth shows you the 4–7 ton Cab RV “Classic DX” unit.

4-7T Packaged Compact Outdoor (SLX)

Take a deep dive into various aspects of the SLX outdoor packaged cabinet, with integral OACC.

2-3T Compact Indoor (S)

Seth shows you around the 2–3 ton SL cabinet, a small unit often found in hotels or residential pools.

8-20T Vertical (BV)

Seth shows you the 8–20 ton BV (“Big Vertical”) cabinet. Components are the same as in the smaller RV cabinet.

8-16T Compact Indoor (SLB)

Review the SLB Cabinet, which is used for 8–16 ton compact design units.

2SLB Cabinet

Review a 2SLB cabinet — a “big” SL cabinet in double-decker format. This design combines two independent refrigeration circuits of between 8-16 tons to double capacity in one unit footprint.

2SL Cabinet

See a 2SL cabinet — a design that stacks two 4-7 ton refrigeration circuits to provide double capacity in the same footprint as our standard SL cabinet.

Unit Operation

Airflow Modes

Reviews Normal/Occupied Mode, Spectator Mode & Purge Mode.

Temp and Humidity Sequence of Operation

Covers the control sequence for temperature and humidity control on all Dehumidified Air Solutions units.

DASV Refrigeration Schematics

Overview on general guidelines for reading Dehumidified Air Solutions refrigeration schematics.

Refrigeration Systems Training - Classic DX

Covers the refrigeration process and components for the classic DX 2-20 Ton systems.

Refrigeration Systems - Modulating Hot Gas

Covers the refrigeration process and components for the modulating hot gas 2-20 Ton systems.

Refrigeration Systems - Large Systems

Covers the refrigeration process and components for the large 18-128 Ton systems.

Electrical Systems and Schematics Overview

Covers the layout and details for Dehumidified Air Solutions wiring schematics.

Control Board Electrical Overview

Covers the electrical overview and layout of the Main Control Board.

Unit Controller Overview

Main Control Board Overview

Covers the layout and key components of the Main Control Board for all Dehumidified Air Solutions products.

Touch Display Overview

Covers the connection to the Touch Display and how to access the SD card.

Touch Display Calibration

Covers Touch Display calibration Process.

Touch Display Power Up and Home Screen

Covers the Power Up sequence, the MCB power switch, connecting multiple Touch Displays, selecting Normal or Service Mode, performing System Restart, and operation of the Home Screen.

Touch Display Logs

Covers the viewing of current and logged alarms, how to use the Help button for more info on alarms and how to save the alarm logs to the SD card.

Touchscreen User & Advanced Menus

Covers Set-points, Schedules, Manual Controlling of Modes and Outputs and Advanced Settings.