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Phoenix D850 Desiccant Dehumidifier #4034000

$9,941.00 Weight: 105 lb
Width: 20 in
Length: 23.25 in
Height: 41 in

Phoenix D850 - Desiccant Dehumidifier, Portable 50/60Hz

The Phoenix D850 provides the perfect blend of portability, versatility, and performance the restoration industry has been seeking in a medium-capacity desiccant dehumidifier. It combines the wide operating range and ultra-low grains of all of the Phoenix desiccants with the portability of an LGR like the Phoenix 250 Max. The included remote humidistat and process blower speed control allow you to tailor the drying to the task at hand.  The D850 operates both vertically or horizontally and is perfect for low clearance applications, fitting inside most crawlspaces. The lower carrying handle makes moving the unit down stairs, as well as into and out of a crawlspace, a breeze. The D850 delivers 850 CFM of ultra-low grain process air and removes a stunning 370 pints per day at AHAM conditions. The true four-hole design (having completely separate process and regeneration airstreams) allows for positive, neutral, or negative pressurization of the affected area.

For large quantity orders, please call for pricing, 513-874-7478


• 850 CFM of Process Air Flow • 370 PPD @ AHAM Water Removal • Ultra Low Grains or Max Water Removal • True Four Hole Desiccant • Operates Vertically and Horizontally • Runs on 208-240V, 50/60Hz, 50A or 30A • Small Size and Weight • Legendary Stainless Construction When to use: • D850 is ideal for drying low evaporation materials such as concrete, brick, plaster, and hardwoods. • D850 performs better in cooler temperatures (below 70°) than refrigerant dehumidifiers • D850 desiccant is sized for 2 ACH (class 2) for up to 25,500 cu.ft and up to 3 ACH (class 3 & 4) on 17,000 cu.ft

How to use: • Use Max Water when primarily drying the air • Use Max Grains when tenting or drying low evaporation materials • The unit can operate horizontally or vertically • Duct the reactivation outlet (225 CFM) outside the affected area or into refrigerant dehumidifier(s) with +350 CFM inlet


Part number - 4034000

Power - 208-240VAC, 50/60Hz, Single Phase 30A or 50A branch circuit protection (24A or 40A actual amp draw) 

Water Removal - 370 PPD (175LPD) at 80°F/60% RH (AHAM)

CFM - 850 CFM Process Airflow 225 CFM Reactivation Airflow (188 CFM 50Hz)

Filters - Pleated 20” x 20” x 2” Media MERV-11 (Process) Pleated 9” x 11 3/8” x 1/4” Media MERV-11

Ducting Options - Process Inlet: 18” or 12” flex-duct (optional) Process Outlet: 10” lay-flat collar (optional) Reactivation Inlet: 6” flex-duct (optional) Reactivation Outlet: 6” flex-duct (required)

Dimensions (unit and shipping) - WIDTH: 20” (51cm) 24” (61cm) HEIGHT 41” (104cm) 47” (119cm) DEPTH: 23.25” (66cm) 26” (66cm) WEIGHT: 105 lbs (70.30kg) 173 lbs (78.47kg)

Operating Range - -10°F to 120°F

Warranty - Year 1 - 100% of Parts and Labor

Popular Accessories and Replacement Filters - 4026859 6” Metalized Polyester Flex-Duct 25’ (Standard) 4020128 6” Insulated Flex-Duct 25’ 4024750 12” Metalized Polyester Flex Duct 25’ 4023643 18” Metalized Polyester Flex Duct 25’ 4022537 10” Lay Flat Duct 500’ 4024935 10” Lay Flat Duct 250’ 4024440 Kestrel 3000 Multi-Function Air Meter 4030115 Reed LM 8000 Multi-Function Meter 4027326 25’ 240V Cord Kit 4031045 50’ 240V Cord Kit 4031046 75’ 240V Cord Kit 4031047 100’ 240V Cord Kit 4036662 Remote Humidistat PROCESS AIR FILTER REPLACEMENT 4022636 20” x 20” x 2” MERV 8 Filter (Standard) REACTIVATION AIR FILTER REPLACEMENT 4027168 9” x 11-3/8” x 0.25” Pre-Filter (Standard)

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23 Salient Road
4960 Factory Drive
London, United Kingdom
Fairfield, OH (a Cincinnati suburb)
PO-LDN 123


Monday - Friday
Our Phones are Answered 24/7/365