User manual HONEYWELL MD

[. . . ] · Minimal amount of water needed for energy efficient operation. · Low water cut-off switch and built-in overflow protection are integral safety features. · Automatic Flushing Timer reduces frequency of maintenance in a hard water installation. · Includes easy-to-use humidity control that mounts on the wall or duct for more installation flexibility. APPLICATION The HE420A, B and HE460A, B Steam Power Humidifiers use a thermal fan interlock control to provide humidification for the whole house. [. . . ] Typical wiring diagram for humidifier in dualspeed air mover applications with air conditioning. 5 68-0192--2 HE420A, B AND HE460A, B STEAM POWER HUMIDIFIERS 1. Locate the cold water pipe closest to the humidifier. Use the valve instructions to install the valve (provided). The valve is self-piercing when installed on copper pipe. STEAM HUMIDIFIER HUMIDISTAT TERMINALS RC BLACK WHITE G 2 1 TO HUMIDISTAT FAN WIRING 1 G CONTACTOR AIR MOVER/ EQUIPMENT BLOWER WHITE BLACK (HOT) L2 L1 IMPORTANT Position the valve so water flows from the top or side to reduce the chance of clogging the valve with minerals. Lightly clean the copper tubing ends with fine sandpaper before making any connections. 4. Place the brass compression nut over the copper tubing. Slide the brass ferrule over the tubing. NOTE: Do not overtighten the compression nut. Insert the tubing into the valve fitting and tighten the compression nut. Flush the copper tubing to remove any debris that can cause problems at the float valve. 1 2 24V WIRING. Z FOLLOW THE INSTALLATION INSTRUCTIONS INCLUDED WITH THE HUMIDISTAT. M10875 Fig. Typical wiring diagram for humidifier in singlespeed air mover applications without air conditioning (switching through G contactor). Return the humidifier to its normal operating mode and properly adjust the water level. Plug the timer into the electrical outlet. Verify the timer operation by activating the humidifier with an appropriately sized coin. Turn the plastic indicator clockwise very slowly. NOTE: This activates the drain valve and allows water to flow from the unit to the drain. CAUTION Flooding Hazard. Improper location of drain tubing can cause water damage to home. · Drain tubing must not kink or contact sharp edges or hot surfaces. · Slope drain tubing downward for correct drainage. Choose an appropriate location for the timer mounting before installing the HC40 Automatic Flushing Timer. The timer must be located: · Near waste drain for disposal of flushing water. · At a maximum distance of 5 ft (1. 5m) from a fused electrical outlet. [. . . ] If system checkout was not completed in thirty minutes, extend the test mode by turning the dial back to one of the dial settings and then returning it to the test mode. c. d. 12. Verify humidifier operation by following the steps in the Checkout Procedures section. End of Humidification Season Clean and shut off the humidifier at the end of the heating season. Use the Every 1 To 4 Months section, steps 1 through 14, to shut down for the season. 4. Check that the furnace blower turns on to circulate the moist air. [. . . ]