Honeywell HE120A User's Manual
Contents
1. ALVIdINAL HE120A B By Pass Drum Humidifier NARNI Ne a l B 3 Can cause death or blindness Do not cut or drill into any air conditioning line or electrical accessory CA ng TIC N Can result in water damage to property Locate the humidifier where the ambient temperature is between 32 F and 180 F 0 C and 93 C IMPORTANT Template must be level before marking location 1 Determine the best location for the humidifier and draw a level line on the duct See Fig 1 2 Tape this template in position and trace around it 3 Remove the template and carefully cut the rectangular open ing 4 Position the humidifier housing see Fig 2 over the hole be sure it is level and mark the five mounting holes TEMPLATE Honeywell INSTALLATION INSTRUCTIONS HUMIDIFIER BYPASS COLLAR TEMPLATE M12248D Fig 1 Typical humidifier installation locations 69 1104 3 BEARING END OF DRUM SHAFT a a DRUM ASSEMBLY HUMIDIFIER HOUSING M12252 Fig 2 Humidifier components 5 Set the cabinet aside and drill the five 7 64 in 3 mm mount ing holes 6 Start the three 3 4 in 19 mm sheet metal screws in the top holes 7 Place the humidifier housing over the screws level the hous ing and tighten the three screws 8 Use two 1 2 in 13 mm screws to secure the humidifier housing at the bottom 9 On the inside of the humidifier housing where the by pass tube connects snap the bearing bra2. cket in place with the U shape of the bracket pointing up 10 Snap the motor plate into place on the opposite side of the humidifier housing NOTE Be sure the motor coupling is positioned toward the top 11 Place the lead wires through the hole in the bottom of the motor cover and snap the cover in place 69 1104 3 2 12 Cutan opening for the 6 in 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 13 Install the 6 in 152 mm collar 14 Use sheet metal screws to connect the by pass tubing from the collar to the humidifier 15 Seal the connections with duct tape 16 Insert the drain fitting in the bottom of the humidifier housing NOTE Be sure the overflow tube is positioned toward the front on the same side as the by pass tubing The tubing should not touch hot surfaces or sharp edges 17 Place the water pan in the humidifier housing so the overflow tube is above the previously installed drain fitting 18 Attach a 3 8 in 10 mm I D tubing to the drain fitting and route continuously downward to a suitable drain or catch basin 19 Screw the float onto the float valve assembly 20 Attach the float valve to the humidifier housing on the same side as the motor 21 Insert the valve hole plug in the double D hole on the oppo site side of the valve 22 Assemble the drum and humidifier pad See Fig 3 23 Insert the dr
3. um assembly into the motor coupling end and snap into the bearing end 24 Install the saddle valve using the instructions on the saddle valve bag on the nearest cold water pipe 25 Connect the copper tubing and route to the humidifier 26 Connect the copper tubing to the humidifier valve and finger tighten 27 Use a 1 2 in open end or adjustable wrench to tighten the compression fitting securely 28 Turn on the water at the saddle valve and adjust the water level to 1 3 8 in 35 mm deep NOTE To raise the water level in the water pan turn the valve adjustment screw located on the water valve inside the humidifier clockwise to lower it and counterclockwise to raise it SQUEEZE SLIGHTLY DRUM END TO INSTALL PAD x Ew TINNERMAN DRUM SHAFT N METAL TABS 1 CLOSED DRUM END M12243 2 Fig 3 Drum and humidifier pad assembly WIRING 3 4 5 ectrical Shock Hazard Can shock or burn out equipment e Disconnect power supply before installing or servicing To prevent premature transformer burnout on multispeed blower applications do not wire the high voltage side of the transformer to the same power source that services the furnace blower Automation and Control Solutions Honeywell International Inc Honeywell Limited Honeywell Limit e 1985 Douglas Drive North Golden Valley MN 55422 customer honeywell com 35 Dynamic Drive Scarborough Ontario M1V 4Z9 U S Registered Trademark 2006 Honey
4. well International Inc 69 1104 3 C H Rev 04 06 Printed in U S A on recycled paper containing at least 10 post consumer paper fibers All wiring must comply with applicable local codes ordinances and regulations 1 Mount the transformer in a convenient location 2 Connect the wires to the 120V side of the transformer 3 Wire the drum motor transformer and humidity Control Refer to the humidity Control installation instructions for mounting and wiring information CHECKOUT PROCEDURE After winter startup or maintenance use the following procedure to check the humidifier operation Turn on the humidifier power and water supply Check the water level in the humidifier water pan water level setting should be 1 3 8 in 35 mm Turn the valve adjust ment screw located on the water valve inside the humidifier clockwise to lower the water level and counterclockwise to raise it Turn the Convertible Humidity Control to the highest setting or the H1008 Automatic Humidity Control to the Test position and set the thermostat to 10 F 6 C above the room temper ature Check that the humidifier pad is rotating Reset the thermostat and the Convertible Humidity Control to a comfortable setting or the Automatic Humidity Control to the desired frost factor setting for automatic operation Honeywell
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