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Model 1042LH Humidifier Installation Manual
Unit Location
•
WARNING
: Disconnect electrical power before beginning installation.
• Do not install where temperatures fall below 32° F / 0° C or where plenum temperatures exceed 200° F / 93° C.
When wiring into a multi-speed blower circuit see Step 7D.
• The humidifier may be mounted with the 6" outlet to the right or left by inverting the cabinet and reversing the
positions of the distributor trough and drain pan. The humidifier may be mounted on the warm or return air
plenum with equal efficiency.
Additional Materials That May Be Necessary
1. 1/4" Diameter plastic supply tubing or 1/4" copper supply tubing for hot water applications
2. 6" Diameter galvanized by-pass pipe
3. Electrical wire and wire nuts
4. Air pressure switch (Model #12500 - GFI #7021)
5. Current sensing relay (Model #GA50 - GFI #7026)
Specifications
• Model:
1042LH Legacy Flow Through Humidifier (GFI #5144)
• Type:
Flow Through
• GPD:
17 Based on 120° F / 49° C Plenum Temperature
• Warranty (Years):
5
• Replacement Vapor Pad
®
:
990-13 (GFI#7002)
(Replace 1-2 times per season)
• Dimensions (Inches):
14 H x 15-1/8 W x 9 D
• Weight (Pounds):
13
• Home Size (Square Feet):
To 3,000
• Installation:
Warm Air Plenum / Right or Left
• Plenum Opening (Inches):
9-1/2 H X 13-5/8 W
• Bypass Duct (Inches)
: 6
• Pallet Qty:
30
• Cabinet Construction:
UV-Stable Automotive Grade Plastic
• Humidistat:
Models: MHX3C (Included)
• Voltage:
24VAC
• In Box:
Humidifier, Humidistat, Installation Instructions, Vapor Pad
®
, Parts Kit, Drain Hose, Transformer, Metal
Distributor Tube, Damper, 15’ 5/8” Drain Hose, Drain Pan, Solenoid Valve
!
15-1/8” W
14” H
9” D
Installation Options:
• Warm Air Plenum
• Return Air Plenum
• Right or Left Bypass
• Vertical or Horizontal
• Furnace or Air Handler
Return
Air
Warm
Air
