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Installation and Operation Manual  -  

WHDEHUM-90P

3

The following items are included with your 

Comfort-Aire/Century dehumidifier:

• 

WHDEHUM-90P dehumidifier

• 

20’ standard AC cable

• 

12” drain hose, which can be lengthened 

(see below)

• 

Installation/operation manual

If any items are not found, please contact 

Comfort-Aire/Century Customer Service at 

877-442-4482.

The following are a list of items that may be 

required for a complete installation:

• 

6-inch round flexible output air ducting 

and clamping, if not operating in 

standalone unit mode (length determined 

by installation location)

• 

For the WHDEHUM-90P, a 12-inch 

round flexible input air ducting and 

clamping, if not operating in standalone 

unit mode (length determined by 

installation location)

• 

Remote humidistat and possibly a 

24VAC control voltage source, if not 

operating in standalone unit mode

• 

Condensate pump (if not easy to reach 

gravity-fed drain)

• 

Air duct take-offs and conversions as 

necessary, if not operating in standalone 

mode

• 

½” ID plastic or vinyl drain hose long 

enough to reach gravity-fed drain or 

condensate pump; connects to a ½” 

hose barb located at the bottom of 

dehumidifier

• 

18-20 gauge thermostat wire for control 

wiring

Contents

Specifications

Specification

WHDEHUM-90P

Capacity (@ 80°F, 60% RH)

90 Pints per Day

Operating Relative Humidity

35-95%

Operating Temperature Range

33°-105°F

Volts/Hertz

120VAC/60 Hz

Full Load Current (@ 80°F, 60% RH)

5.5 Amps

Coefficient of Performance

2.80 L/kWh

Energy Star Rated

Yes

Refrigerant

R410A

Airflow @ 0.00” S.P.

370 CFM

Inlet Filter

Washable Pre-Filter and 

MERV 8 Cassette

Inlet Duct

12”

Outlet Duct

6”

Power Cord

20-ft Standard 3-Prong AC

Sound Level

58 dBa

Drain Pipe Connection

12-¾” OD, ½” ID Vinyl 

Tubing

Digital Control for Standalone 

Operation

Yes

Dimensions L x W x H

23.4” x 13.7” x 17”

Weight

65 Pounds

ETL Listed

Yes

Summary of Contents for Comfort-Aire Century WHDEHUM-90P

Page 1: ...www marsdelivers com Installation and Operation Manual WHDEHUM 90P Whole House Dehumidifier...

Page 2: ...trary to these guidelines may void warranty The benefits of a properly humidified environment are many They include personal comfort as well as the preservation of furniture draperies carpets wooden f...

Page 3: ...t operating in standalone unit mode Condensate pump if not easy to reach gravity fed drain Air duct take offs and conversions as necessary if not operating in standalone mode ID plastic or vinyl drain...

Page 4: ...uire dehumidification As of late there is a growing trend towards mini split HVAC systems that are implemented as heating and cooling systems Separated dehumidification configurations are ideal soluti...

Page 5: ...wait a minimum of two hours before turning the unit on Additionally the Comfort Aire Century dehumidifier cannot sit directly on the floor unless the unit condensate drain output is feeding directly i...

Page 6: ...en installing the dehumidifier inside a sealed crawlspace a basement or a sealed attic the ducting requirements are recommended as follows 1 If the area is open without partitions and the dehumidifier...

Page 7: ...d or unconditioned area An example would be to feed the separate room from the main living area which would maximize the airflow from there proving a living area that likely is more dry than the other...

Page 8: ...OSESTO DISABLE DEHUMIDIFIER G If the dehumidifier is installed in an attic leak protection the unit should be place a normally closed condensate overflow s Wire the float switch to terminals A5 and R...

Page 9: ...reen The display screen has two functions When the unit is powered ON it shows the local humidity While setting the desired humidity level the screen will show the set point humidity level 2 Power Ind...

Page 10: ...iated float switch is open Step 2 Push the power switch to turn the dehumidifier ON Step 3 Press the Central Control button until the Whole House light turns on which indicates the unit is configured...

Page 11: ...delivers com within 60 days of purchase The original consumer must retain a receipted bill of sale as proof of warranty period part numbers serial numbers purchase and installation dates REMEDY PROVID...

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