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7— Model HUMBBLFP1025-A- INLET CABINETRECTIFIER SOLENOID VALVE DISTRIBUTOR PAN EVAPORATOR PAD DUCT HOUSING SIDE ACCESS DOOR DRAIN Fig. 8— Model HUMBBSBP2017-A- CABINET FRONT COVER SCREWS (4) PAD ASSEMBLY SIDE ACCESS DOOR Fig. 9— Model HUMBBSFP1016-A- 4. Turn off the furnace. When the blower stops, look into the humidifier to make sure the water is not flowing into the unit. 5. Replace the cover assembly and fasten securely. 6. Now, turn the furnace on and set the thermostat for desired room temperature. SHUTDOWN PROCEDURES To shut down your humidifier, close the saddle valve on the water line. Then turn off the humidistat. When set to the OFF position, the humidistat shuts off the electrical power to the solenoid valve on the humidifier. NOTE: If your home comfort system includes cooling, be sure the water supply to your humidifier is turned off during the cooling season. Close the damper located in the bypass duct if one is installed. If your humidifier is a Model HUMBBWTR, drain and clean the water pan as described in cleaning procedures. PERFORMING ROUTINE MAINTENANCE With the proper maintenance and care, your humidifier will operate economically and dependably. Maintenance can be accomplished easily by referring to the following directions. However, before performing any maintenance, consider these important safety precautions: • DISCONNECT ALL ELECTRICAL POWER TO THE HUMIDIFIER AND FURNACE BEFORE PERFORMING ANY SERVICE OR MAINTENANCE TO AVOID PERSONAL INJURY. BEARING RETAINER CABINET PAD PAN Fig. 10— Model HUMBBWTR2019-A- NOTE: THERE MAY BE MORE THAN 1 ELECTRICAL DISCONNECT SWITCH. • ALTHOUGH SPECIAL CARE HAS BEEN TAKEN TO MINIMIZE SHARP EDGES IN THE CONSTRUCTION OF YOUR HUMIDIFIER, BE EXTREMELY CAREFUL WHEN HANDLING PARTS OR REACHING INTO THE UNIT TO AVOID PERSONAL INJURY. Your humidifier has been designed for easy disassembly to simplify cleaning and servicing. Your unit must be kept clean to maintain its efficiency. —3— Regular inspection allows you to determine the cleaning schedule best suited to your humidifier’s operating conditions. The frequency for required maintenance will depend most upon the available water supply. In areas where hard water and high mineral content are prevalent, more frequent cleaning and servicing may be required. At minimum, the humidifier will need to be cleaned at the beginning of every heating season. CLEANING PROCEDURES Models HUMBBLBP, HUMBBSBP, HUMBBLFP, and HUMBBSFP 1. Turn off all electrical power to the humidifier and furnace or fan coil. 2. Turn off the humidifier’s water supply. (See Fig. 4.) 3. Disassemble the humidifier. • To disassemble a Model HUMBBSBP humidifier, gently pull the latch that secures the access panel. Remove the door and slide the evaporator pad assembly out of the unit. (See Fig. 8.) • To disassemble either a Model HUMBBLBP or Model HUMBBLFP humidifier, first remove the water supply connection to the solenoid valve. Next, remove the screw that holds the distributor cover to the cabinet, and lift off the cover. Disconnect the drain line from the sump and loosen the thumbscrew(s) holding the sump to the cabinet. Remove the sump. Remove evaporator pad assembly. (See Fig. 6 or 7, according to the model you own.) • To disassemble a Model HUMBBSFP, the pad assembly can be removed from the side access door or the front cover. When removing the side door, lift the pad assembly up by holding the tabs and slide th...

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