Aprilaire 448 Manuals

READ AND SAVE THESE INSTRUCTIONS Owner’s Manual For Models 110, 112, 220, 224, 350, 360, 440, 445, 448, 558, 560, 568, 760 & 768 Includes Safety & Operating Instructions and Warranty Information Humidifiers

HUMIDIFIER CONTROL Safety and Installation Instructions R E A D C O M P L E T E I N S TA L L AT I O N I N S T R U C T I O N S A N D T E M P L AT E B E F O R E S TA R T I N G . Attention Installer: WARNING This product must be installed by a qualified heating and air conditioning contractor. Failure to do so could result in serious injury from electrical shock. WARNING 1. 120 volts may cause serious injury from electrical shock. Disconnect electrical power to the furnace before starting installation. 2. Sharp edges may cause serious injury from cuts. Use care when cutting plenum openings and handling ductwork. CAUTION 1. Do not set humidity higher than recommended. Condensation damage may result. 2. Do not set humidity up to recommended levels if there is condensation on the inside of windows of any unheated living space. Condensation damage may result. 3. Do not mount Humidifier Control on supply plenum or duct. The unit will not withstand supply temperatures. 4. When installing Humidifier Control on downflow furnaces, ensure blower continues to run after a heat call is satisfied to eliminate high temperatures from damaging the Humidifier Control. 5. Do not mount Humidifier Control downstream of the bypass outlet. False humidity conditions will cause humidifier to operate incorrectly. THESE INSTALLATION INSTRUCTIONS ARE FOR THE APRILAIRE HUMIDIFIER CONTROL ONLY! For Aprilaire® Humidifier installation, follow Aprilaire Humidifier Installation Instructions. STEP 1: Unpack the Humidifier Control Carton Make sure all components are present (see Figure A): A. Humidifier Control C. Manual Mode Label B. Outdoor Temperature Sensor D. Manual Mode Resistor Case STEP 2: Disassemble the Humidifier Control Remove door from the Humidifier Control by pulling the bottom of the door straight out. STEP 3: Check the Mode Switch With the door removed, notice the switch labeled BYPASS and POWER (partially covered by the enclosure). Make sure the switch is correctly set for the type of humidifier being installed. POWER HUMIDIFIERS: 110, 112, 445, 448, 760, 700 (formerly 768) BYPASS HUMIDIFIERS: 220, 224, 400, 440, 550, 558, 560, 568, 600 STEP 4: Check the Change Water Panel indicator setting. This setting will control when the indicator light turns on, reminding you to change your Water Panel. If your Control came with a humidifier, the Control is pre-set. If the installation site has a 3-month or shorter heating season or very hard water, you may want to adjust the setting. (see Figure B). The Control must be energized to reset the Water Panel Indicator. STEP 5: Determine Location for Humidifier Control and Mount It Humidifier Control must be mounted in the Return Duct. For proper operation, the Humidifier Control must be at least 6 inches upstream of any of the following: • Humidifier • Humidifier Bypass Ductwork (if applicable) • Fresh Air Intake Ductwork (if applicable) (see Figure C) After location for Control is selected, use the perforated Humidifier Control template (attached to these instructions) to mark the duct opening and cut it. Use 4 sheet metal screws (not provided) to mount the Humidifier Control in the duct opening and make sure Humidifier Control is sealed tightly to duct. Use the “OFF” setting to turn the Water Panel Change indicator OFF Use setting “A” for Model 400 humidifiers. The indicator will light after 75 hours of inlet valve operation, which corresponds to approximately 300 hours of humidifier operation. RETURN DUCT APRILAIRE HUMIDIFIER FRESH AIR INTAKE BYPASS CONNECTION A D HUMIDIFIER CONTROL 6” MIN. Use setting “B” for Model 600 and 700 humidifiers when the heating season is 3 months or less, or if hard water is used. The indicator will light after 300 hours of humidfier operation. Water Panel Change Indicator Use setting “C” for Model 600 and 700 humidifiers when the heating season is longer than 3 months. The indicator will light after 600 hours of humidfier operation. Figure C B2202617 Figure B Mode Switch Figure A C B

READ AND SAVE THESE INSTRUCTIONS Includes Safety, Operating and Maintenance Instructions and Warranty TABLE OF CONTENTS PAGE Introduction................................................Inside Front Cover Principle of Operation ............................................................1 Operating Instructions •Automatic Humidifier Control............................................3 •Manual Humidistat............................................................5 Effect of Water Characteristics..............................................6 Annual Maintenance ..............................................................7 Annual Summer Shutdown....................................................7 Periodic Preventative Maintenance .......................................8 MAINTENANCE INSTRUCTIONS Models 558 & 550 ..............................................................9 Models 568 & 560 ..............................................................9 Models 768 & 760 ............................................................10 Model 440 ........................................................................11 Models 448 & 445 ............................................................11 Reservoir Pump Sections .............................................12 Models 350 & 360 ............................................................13 Models 110 & 112 ............................................................14 Models 220 & 224 ............................................................15 Limited Warranty..................................................................16 Replacement Record ............................................Back Cover HUMIDIFIERS The Best Cure For Dryness® ® FOR MODELS 768, 760, 568, 560, 558, 550, 448, 445, 360, 350, 110, 112, 220, 224, & 440 OWNER’S MANUAL

SERVICE MANUAL for HUMIDIFIER

SERVICE MANUAL for HUMIDIFIER

READ AND SAVE THESE INSTRUCTIONS Includes Safety, Operating and Maintenance Instructions and Warranty TABLE OF CONTENTS PAGE Introduction................................................Inside Front Cover Principle of Operation ............................................................1 Operating Instructions •Automatic Mode................................................................3 •Manual Mode ....................................................................5 Effect of Water Characteristics..............................................7 Annual Maintenance ..............................................................8 Annual Summer Shutdown....................................................8 Periodic Preventative Maintenance .......................................8 MAINTENANCE INSTRUCTIONS Models 448, 558 & 568 ..............................................10, 12 Model 600 ........................................................................13 Model 700 ........................................................................14 Limited Warranty..................................................................15 Replacement Record ............................................Back Cover AUTOMATIC HUMIDIFIER The Best Cure For Dryness® ® FOR MODELS 448, 558, 568, 600, & 700 OWNER’S MANUAL

MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 448-445A-445 WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing. Key Cover Knob 1. Top Cover 2. Feed Nozzle 3. Distribution Tray 4. Metal Frame 5. Maintenance Instructions Note humidistat or control setting and turn dial to the "Off" position. 1. Disconnect electrical power and turn off water supply. 2. Remove two aluminum knobs (1), swing up and remove top cover (2) from humidifier. 3. Place finger under white plastic water outlet (3) at top of black water distribution pan (4). Lift up to pop outlet loose from hole and notch in black distribution pan. 4. Tip forward and lift the complete plastic framed evaporative section out of the humidifier. 5. To remove black plastic water distribution pan from evaporative section, push down on pan and out on white plastic frame (Scale Control Insert). Clean "V" openings in water distribution panel but do not scrape coating off bottom surface. 6. Remove Water Panel evaporator and Scale Control Insert. Remove Water Panel evaporator from Insert and clean insert by flexing or using putty knife. Inspect Water Panel evaporator and replace with a new Water Panel evaporator, if necessary, with colored spot up. 7. Re-install black water distribution pan. Reinstall evaporative section in the humidifier, with notch and hole in distribution pan toward you. Pop hose fitting on end of feed tube into distribution pan. 8. See below for reservoir and pump cleaning. 9.

READ AND SAVE THESE INSTRUCTIONS Includes Safety, Operating and Maintenance Instructions and Warranty TABLE OF CONTENTS PAGE Introduction................................................Inside Front Cover Principle of Operation ............................................................1 Operating Instructions •Automatic Mode................................................................3 •Manual Mode ....................................................................5 Effect of Water Characteristics..............................................7 Annual Maintenance ..............................................................8 Annual Summer Shutdown....................................................8 Periodic Preventative Maintenance .......................................8 MAINTENANCE INSTRUCTIONS Models 448, 558 & 568 ..............................................10, 12 Model 600 ........................................................................13 Model 700 ........................................................................14 Limited Warranty..................................................................15 Replacement Record ............................................Back Cover AUTOMATIC HUMIDIFIER The Best Cure For Dryness® ® FOR MODELS 448, 558, 568, 600, & 700 OWNER’S MANUAL