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Hersteller: Aprilaire Dateigröße: 688.95 kb Dateiname: Unterrichtssprache:

WARNING RISK OF SCALDING. Water temperature over 125°F can cause severe burns and scald instantly. Shut off the hot water supply before disconnecting or tapping into any hot water supply line. - 10-- 11 PERIODIC PREVENTATIVE MAINTENANCE ANNUAL SUMMER SHUTDOWN For Models 400A, 500A, 500M, 600A and 600M close the bypass damper, which is a part of the humidifier, with the small damper handle. Humidifier Control: Automatic Digital Humidifier Control in Automatic Mode (see Figure A): No adjustment is necessary. Automatic Digital Humidifier Control in Manual Mode (see Figure B): Set the knob to the “OFF” position. Manual Humidifier Control (see Figure C): Set the knob to the “OFF” position. NOTE: Periodic inspection and preventative maintenance of your total heating system is important for efficient and safe operation. Your heating contractor can service your humidifier at the same time he services the HVAC system. All models have a distribution tray above the Water Panel, which should be inspected annually and cleaned of excess mineral deposits. Older models have a granular coating in the distribution tray. Do not scrape the granuals out of the tray. Newer models have a fabric liner in the distribution tray. 1. Disconnect electrical power to the HVAC and shut off water supply. 2. Disconnect the water line at the inlet compression nut. 3. Remove the in-line strainer from inside the inlet side of the valve by using a small nail or wire. 4. Flush the in-line strainer clean or replace with a new strainer, Part No. 4004. 5. Reconnect the inlet water line. Double Wrench to Prevent Leaking. 6. Disconnect the water feed tube at the outlet compression nut. 7. Inspect the water feed tube by gently flexing it and looking for cracks or signs of wear. Replace tube if it is cracked, brittle, or has been damaged. 8. Inspect the orifice in the water feed tube and make sure the small opening is unplugged. 9. Reconnect the water feed tube. Double Wrench to Prevent Leaking. 10. Remove the drain line from the bottom of the humidifier. If applicable, flex it to loosen any mineral deposits or blockages. Flush the drain line with water under pressure to clear it of any debris, and slip it back onto the drain fitting. If drain line does not flow properly, replace it. Inspect the drain line to make sure it has a constant downward slope and is not flattened or blocked. 11. Turn on water supply and reconnect electrical power to the HVAC. WATER LINE INSPECTION AND SERVICE INSTRUCTIONS INLET COMPRESSION NUT INLET SOLENOID VALVE ORIFICE OUTLET COMPRESSION NUT IN-LINE STRAINER WATER FEED TUBE 90-1053 - 12-- 13 - 14 - - 15 - 9 12 6 11 10 3 7 8 5 2 1 4 MODELS 350 & 360 1. Front Cover 2. Feed Tube 3. Integral Bypass Damper 4. Water Panel Evaporative Assembly 5. Distribution Tray 6. “V” Notches 7. Water Panel Evaporator 8. Scale Control Insert/Float Chamber 9. Overflow Drain Line 10. Float Cover 11. Float 12. Water Level Sensor Assembly 1. Note Humidifier Control setting and turn dial to the “OFF” position. 2. Turn off water supply. Turn the integral bypass damper (3) to the “SUMMER” position. 3. Press the tabs in the latches on the top and bottom of front cover (1) and pull cover off base with both hands. 4. Carefully pull the plastic feed tube (2) out of the distribution tray (5) at the top of the Water Panel evaporative assembly (4). Tip the Water Panel evaporative assembly forward and lift it out of the humidifier. Do not tip the Water Panel evaporative assembly more than needed to clear the housing to avoid over-bending the water level sensor assembly (12). 5. Unsnap the distribution tray (5) from the scale control insert (8). Lightly scrape out or brush off any mineral deposits, being careful not to stretch or loosen the synthetic fabric liner. Soaking the tray in vinegar or a lime-removing agent is helpful when trying to remove stubborn mineral deposits. 6. Slide the used Water Panel evaporator (7) out of the scale control insert/float chamber and dispose of the Water Panel. 7. Remove the float cover (10) and inspect the floats (11) and float chamber for mineral build-up. Remove deposits as needed from floats, float chamber and scale control insert. Wash the parts with a disinfecting cleaner. Reassemble the floats and float cover. Make sure stems of both floats extend through openings in float cover and that floats move freely up and down. 8. Inspect the plastic feed tube (2) by gently flexing it and looking for cracks or signs of wear. Replace tube if it is cracked, brittle, or has been damaged. 9. Slide a new Aprilaire No. 45 Water Panel evaporator (7) into the scale control insert/float chamber (8). Snap the distribution tray (5) back on the scale control insert (8). 10. Reinstall the Water Panel evaporative assembly (4) into the humidifier. Take care not to overbend the water level sensor assembly. Push the top of the Water Panel evaporative assembly firmly back until it snaps into place. 11. Push the end of the feed tube back firmly i...

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