The Manual Humidi ier Control is designed or low voltage service to
control humidi ication equipment. An increase in relative humidity (RH)
expands the nylon ribbon which opens the control switch to stop
operation o the humidi ier. A decrease in RH reverses the process and
closes the control switch.
1
HEALTHY CLIMATE®
MANUAL HUMIDIFIER CONTROL
HUMIDIFIER CONTROL
506407-01
9/2009
SAFETY AND INSTALLATION INSTRUCTIONS FOR MANUAL HUMIDIFIER CONTROL FOR
HEALTHY CLIMATE HUMIDIFIER MODELS HCWB3-12, HCWB3-17 & HCWP3-18
Read complete installation instructions and template be ore starting.
WARNING
ATTENTION INSTALLER: This product must be installed by a
quali ied heating and air conditioning contractor. Failure to do
so could result in serious injury rom electrical shock.
WARNING
1. 120 volts may cause serious injury rom electrical shock.
Disconnect electrical power to the urnace be ore starting
installation.
2. Sharp edges may cause serious injury rom cuts. Use care
when cutting plenum openings and handling ductwork.
WARNING
1. Do not set humidity higher than recommended. Condensation
damage may result.
2. Do not set humidity up to recommended levels i there is con-
densation on the inside o windows o any unheated living
space. Condensation damage may result.
3. Do not mount the Manual Humidi ier Control on the supply
plenum or duct. The unit cannot withstand supply tempera-
tures and will mal unction.
4. Do not mount the Manual Humidi ier Control downstream o
the bypass outlet. False humidity conditions will cause the
humidi ier to operate incorrectly.
Control can be mounted on wall in living space or on return duct.
For Wall Mount:
• Locate on an inside wall o living area approximately 5’ above the
loor.
• Do not locate control in the direct path o dra ts rom open doors and
windows.
• Do not install where operation might be a ected by lamps, sunlight,
ireplace, registers, radiators, concealed air ducts and pipes, or room
occupants.
• The basic rules or location o thermostats also apply to humidi ier
controls.
For Duct Mount:
Locate on the urnace return air plenum or duct, at least 6” upstream
o the humidi ier, humidi ier bypass ductwork (i applicable) or resh air
intake ductwork (i applicable).
• Do not mount the Humidi ier Control on counter low urnace.
Furnace mal unction will result in improper humidi ier operation.
• Be sure the Humidi ier Control is installed on a 24 VAC circuit only.
• Make sure no bare wires are exposed or insulation damaged.
• Make sure all splices are mechanically and electrically secure.
• To remove dirt or other oreign matter rom the nylon ribbon and
control interior, dust lightly with a ine so t brush.
THESE INSTALLATION INSTRUCTIONS ARE FOR
THE MANUAL HUMIDIFIER CONTROL ONLY!
For humidi ier installation, ollow humidi ier
installation instructions.
Location
General Instructions
