User manual HONEYWELL SM 120

[. . . ] · Unique snap-lock fittings and reversible components allow quick installation and maintenance. · Interior components designed for easy clean up or replacement. · Durable thermoplastic cabinet resists rust, corrosion and warpage. · Includes easy-to-use humidity control that mounts on the wall or duct for more installation flexibility. APPLICATION The SM 120, B By-Pass Drum Humidifier uses the warm air furnace blower to provide humidification for the whole house. [. . . ] Place the lead wires through the hole in the bottom of the motor cover and snap the cover in place. (152 mm) collar in the selected by-pass location. NOTE: Be sure to install a duct damper for summer shutoff if there is air conditioning. LO WB OY M13170 Fig. Typical humidifier installation locations. Tape the template in position and trace around it. Remove the template and carefully cut the rectangular opening. Position the humidifier housing (See Fig. 3. ) over the hole (be sure it is level) and mark the five mounting holes. Set the cabinet aside and drill the five 7/64 in. (19 mm) sheet metal screws in the top holes. Place the humidifier housing over the screws, level the housing and tighten the three screws. Turn the water on at the saddle valve and adjust the water level to 1-3/8 in. NOTE: Turn the valve adjustment screw (located on the water valve inside the humidifier) clockwise to lower and counterclockwise to raise. OPERATING THE HUMIDIFIER The SM 120 humidifier is controlled by the H908A Humidity Control that is installed either on an interior wall in the living area or on the return air duct. Choose the M13155 H908A setting using the combination relative humidity/outdoor temperature setting scale on your humidity control. Match the dial setting to the outdoor temperature for optimizing the humidity level while reducing the moisture condensation on your windows. Table 2 can also be used to adjust the humidity control to the recommended setting. Table 2. At Outside Temperature -20°F (-29°C) -10°F (-23°C) 0°F (-18°C) NOTE: Recommended Setting 15 20 25 At Outside Temperature +10°F (-12°C) +20°F (-7°C) Above 20°F (-7°C) Recommended Setting 30 35 40 As the outside temperature drops, the recommended setting is lowered to accommodate the effects of dewpoint. These settings should reduce the accumulation of moisture and ice on the windows and in other areas of the house. Your Honeywell HE120B Humidifier is controlled by the Honeywell H1008 Automatic Humidity Control with HumidiCalc+ Software. The automatic humidity control is mounted in the return air duct where it can be exposed to the air stream of the return air. The HumidiCalc+ Software inside your automatic humidity control is designed to automatically adjust Some indoor activities such as cooking, showering and clothes drying can cause excessive levels of humidity and start the accumulation of moisture on the windows. NOTE: If this condition persists for more than a few hours, set the humidity control to the lowest setting to turn off the humidifier. [. . . ] Humidified air feels warmer and more comfortable so the homeowner may be able to lower the thermostat heating setpoint and save money on heating fuel bills. The end result is that the humidifier gives the homeowner a comfortable environment that is also energy efficient. HUMIDIFIER HOUSING WATER PAN WATER VALVE OPENING M12252 Fig. Lift up the drum shaft from the bearing end and slide it out of the motor coupling to remove the drum assembly. NOTE: You will encounter some resistance and hear an audible click when removing the drum shaft. MAINTENANCE A regular maintenance program prolongs the life of the humidifier and provides a more comfortable environment. [. . . ]