Humidity Controllers
H8908 Humidistat/Dehumidistat
The H8908A Humidistat and H8908D Dehumidistat (humidity
controllers) provide automatic low voltage control of humidifiers and
dehumidifiers or ventilators, respectively, in central heating and air
conditioning systems. They have a SPST, snap-acting, dust-proof
switch and are designed for wall or surface duct mounting.
• SPST, snap-acting, dust-proof switch and are designed for
wall or surface duct mounting
• Positive ON and OFF settings
• Twelve-inch ribbon of thin, moisture-sensitive nylon ribbon wound
around three bobbins effectively gives optimum control for reliable
operation under changing ambient conditions
• Mounts in duct or on wall surface
Type: Steam
Dimensions, Approximate: 19 in. high x 11 1/4 in. wide x 9 in. deep
(482.6 mm x 285.75 mm x 228.6 mm)
Mounting: Duct or Remote Mount (up to 20 feet/6 meters)
Temperature Range: (1.1 C to 40 C)
Vo lt ag e: 24 Vac
Product Number Color Application
H8908ASPST/U White Provides humidity control for ducts, greenhouses, computer rooms, printing and photographic laboratories,
H8908DSPST/U White Provides humidity control for ducts, greenhouses, computer rooms, printing and photographic laboratories,
and other applications where electronic accuracy, as well as remote sensing, is desired
and other applications where electronic accuracy, as well as remote sensing, is desired
H46 Humidity Controller
Provide automatic control of a humidifier or dehumidifier for
dehumidification in air conditioning systems.
• Positive ON-OFF settings permit manual operation of controlled equipment
• Impact-resistant, molded plastic cover mounts on wall
• Fully enclosed, dust free, SPST, snap-acting switch
• Sensing element of thin, moisture sensitive nylon ribbon provides
reliable operation even when ambient temperature conditions change
Type: Humidity Control
Dimensions, Approximate: 4 11/16 in. high x 2 15/16 in. wide x 2 1/8 in.
deep (119 mm high x 75 mm wide x 54 mm deep)
Mounting: Wall mount
Temperature Range: 50 F to 125 F (10 C to 52 C)
Differential: 4% to 6% RH
Vo lt ag e: 24 Vac; 120 Vac; 240 Vac
Indoor
Air Quality
Electrical Ratings
Operating
Product Number
* H46C1166/U 20 to 80% RH 7.5A 30.0A 6.0A 3.8A 15.0A 6.0A Premier
* H46D1214/U 10 to 60% RH 4.4A 26.4A 6.0A 2.2A 13.2A 6.0A Premier
* H46E1013/U 20 to 80% RH 7.5A 30.0A 6.0A 3.8A 15.0A 6.0A Beige Dehumidistat with plug for window Air
* TRADELINE models • SUPER TRADELINE models
Humidity
Range (% RH)
(120 Vac,
Full Load)
(120 Vac,
Locked
Rotor)
(120 Vac,
Resistive)
(240 Vac,
Full Load)
70-6910 81
(240 Vac,
Locked
Rotor)
(240 Vac,
Resistive)
Color Description
White®
White®
Wall mounted Dehumidistat
Wall mounted Humidistat
Conditioner or portable dehumidifier