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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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.

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

Model 81 Drum Humidifier

Diagrams and Brochures

Parts

Maintenance

Specs

Features

Video Support