A 3a fuse will protect neither the humidistat or the 200w fan just the wiring between the two units. One for the fan and one for the humidity sensor.
Humidity Control Switch Circuit
Humidistat fan wiring diagram. Heres the wiring diagram the question i have is that in the diagram there are 3 inputs into the humidistat mains live switched live and mains neutral. A honeywell humidistat controls a humidifiers run time. Aprilaire humidistat wiring diagrams. Humidity extractor fan wiring diagram wiring diagram is a simplified suitable pictorial representation of an electrical circuit. A humidistat can mount to a wall like a thermostat or in an air conditioners return duct near the air filter. It shows the components of the circuit as simplified shapes and the capacity and signal friends in the midst of the devices.
Fans with a built in humidistat. M24734 m24801 h8908 1 1 2 provide disconnect means and overload protection as required. Am i going crazy or does the wiring diagram on p3 of the manual suggest that you need two switches for this. Humidistat fans are triggered by the level of moisture in the air. The wiring diagrams necessary for your installation will vary depending on the equipment that you are installing your aprilaire humidifier with. Typical wiring diagram of current sensing relay with humidifier.
Guitarist mar 28 2013 8 my advice is to get a qualified electrician to carry. Insert housing into ceiling opening and secure housing by using tapping screws ø 425mm. Insert fan body into housing by using three machine screws m4 x 45mm originally on the fan body and plug in light and fan connectors. The fan has 6 wires coming out of it. The brown is labeled for humidity sensor or speed control. Typically wall mounted humidistats control a single rooms humidity and duct mounted humdistats control whole house humidity.
Using wire nuts not provided connect house wires to fan wires as shown in the connect wiring diagram on page 3. To wire a fanlight you can use two separate signal pole switches and run separate switches for the light kit and the signal loop for the fan motor. Fanlight models expand the wall switch options 443 when wiring a fanlight model you will need a separate circuit for the light switch as you cannot supply line voltage to the red wires. The following illustration describes six possible ways to wire your aprilaire humidifier to your furnace or air handler. Hear a click when the humidistat is secured. 2 black 2 white 1 brown and ground.
Fans are available with a built in humidistat or alternatively an external humidistat can be connected to other types of fan. Thus they respond when the air gets steamy and run until the humidity level is reduced. Wiring h8908 with 2 speed fan motor. Wiring h8908 with fan interlock. Attach the humidistat to the base.
Gallery of Humidistat Fan Wiring Diagram
