Model 81 Drum Humidifier

GFI#: 5048

Diagrams and Brochures

81 Finding the Model & Serial Numbers

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81 Legacy Humidifier Installation & Owners Manual R

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81 Parts Drawing

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81 Parts Reference

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81 Spec Sheet

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GFI LIT-81 - Model 81 Brochure 2-Page

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Parts

Ref #	GFI #	Part Name	Image	Qty Req'd	Price
	6004	975-1 Valve Seat		1	$0.86	Qty: Add
-	7109	727-46 6\" Bypass Tube Assembly		1	$37.17	Qty: Add
	7122	727-24 Orifice Fitting		1	$11.40	Qty: Add
3	7104	81-22 Drum Assembly		1	$61.53	Qty: Add
4	7101	81-8 Drum End - Closed		1	$12.83	Qty: Add
5	7099	81-15 Evaporator Sleeve		1	$27.21	Qty: Add
6	7102	81-9 Drum End - Open		1	$12.83	Qty: Add
7	7103	81-10 Drum Shaft		1	$12.83	Qty: Add
8	7157	P188 Retainer Clip		1	$2.26	Qty: Add
9	7091	81-3 Bypass Collar		1	$30.01	Qty: Add
10	7126	81-14 Valve Hole Cover		1	$5.64	Qty: Add
13	7095	81-13 Thumb Screw		1	$4.50	Qty: Add
14	7092	81-4 Water Pan		1	$27.15	Qty: Add
15	7090	81-2 Motor Mounting Plate		1	$31.45	Qty: Add
17	7113	727-40 Motor Assembly		1	$76.99	Qty: Add
18	7096	81-21 Float Valve Assembly		1	$44.35	Qty: Add
19	6005	975-6 Valve Shield		1	$1.67	Qty: Add
21	7076	747-11 Valve Washer		1	$1.54	Qty: Add
22	7123	727-8 Splash Guard		1	$3.39	Qty: Add
25	6026	P118 Cotter Pin		1	$1.61	Qty: Add
26	7097	81-11 Float Arm		1	$8.53	Qty: Add
27	7098	81-12 Float		1	$15.69	Qty: Add

Maintenance

Specs

Type: bypass drum
Gallons per day: 16 (based on 120° F plenum temperature)
Dimensions (inches): 11.5 H x 12 W x 11 D
Weight (pounds): 13
Split drum design allows easy removal of evaporator sleeve: part number 81-15 (GFI #7099)
- Replace 1-2 times per season
For home sizes up to 2,800 square feet
Sleeve material: polyurethane
Installation: warm air/ return air plenum / right of left side
Plenum opening (inches): 8 W x 7.5 H
Bypass opening (inches): 6
Pallet quantity (units): 21
Control: MHX3 manual-control duct mount humidistat
Power (volts): 24
Warranty (years): 1

Features

UV - stable automotive grade plastic
Control included
Minimal water waste

Video Support

Inside the 81 a drum and evaporator sleeve continually rotate through a water-filled trough. Warm air from your furnace passes through the unit, and the soaked evaporator sleeve to deliver moistened, healthier air to you and your family.

*To purchase this unit, contact your local authorized GeneralAire® wholesaler or contractor. Looking for replacement Vapor Pads or parts? Click on "Shop" and purchase them online, or from one of our authorized GeneralAire® wholesalers and contractors throughout the USA.

GeneralAire® offers a wide variety of residential whole-house indoor air quality solutions using the latest in indoor air technology.

Installed in your home's HVAC system by a qualified HVAC contractor, GeneralAire® IAQ products protect you and your family by ensuring clean, healthy and comfortable indoor air quality throughout your home.

Professional Installation Only
Not Sold In Retail Outlets
Sold Only by Approved Wholesalers

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Model 81 Drum Humidifier

Diagrams and Brochures

Parts

Maintenance

Specs

Features

Video Support

GeneralAire® offers a wide variety of residential whole-house indoor air quality solutions using the latest in indoor air technology.