Aprilaire 400A Manuel du propriétaire

AutomaticDigital Humidifier ControlSafety and Installation InstructionsWARNINGATTENTION INSTALLER: This product must beinstalled by a qualified heatin

1918OUTDOOR TEMPERATURESENSOR OR MANUALMODE RESISTORR C A B ODT CfW/GADHC TERMINAL STRIPH24 VACTRANSFORMERFURNACEBLOWERMODEL 50COMMONUSING MODEL 50 CU

21201. Replace the cover by snapping it into the Humidifier Controlbase. Also replace the knob onto the Control.2. Restore power to the heating system

2322TROUBLESHOOTINGApplies to both Automatic and Manual Operation unlessindicated otherwise.TABLE 1Outdoor Temperature (°F) Resistance (kΩ) ±10-30 231

2524SYMPTOMHumidifier does not operate in “Test/Reset” modeTROUBLESHOOTING PROCEDURE• Make sure that the blower is operating and the HVACsystem is cal

2726SYMPTOMHumidifier operates only in “Test/Reset” mode• If outdoor temperature is greater than 60°F or less than -30°F, the Humidifier Control will

28RESEARCH PRODUCTS CORPORATIONP.O. BOX 1467 • MADISON,WI 53701-1467Call 800/334-6011 • FAX 608/257-435710007267 11.07 B2204285BSYMPTOMHumidifier or

32Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 3System Checkout . . . . . . . . . . . . . . . . .

54STEP 2: Disassemble the Humidifier ControlRemove the knob. Remove the cover by pulling at the bottom andswinging it out and upward.STEP 3: Check the

76STEP 5: Determine Location for Humidifier Control and Mount ControlHumidifier Control must be mounted on the Return Duct, at least6 inches upstream

98Figure D – Fiber Board Duct Mount90-1203CONTROL BOARDCOVERKNOBBASE PLATERETURN DUCTRETURNDUCTSHEET METALPLATECUT OPENING INRETURN DUCTSHEET METAL PL

1110STEP 8: Alternate Location for Outdoor Temperature SensorThe Sensor can also be mounted in the center of either:• PVC fresh air intake pipe for th

1312Installing the Humidifier Control forManual OperationIf it is not feasible to install the OutdoorTemperature Sensor, the Humidifier Control can be

FURNACE ACCESSORYTERMINALSTERMINALS MAY BE LABELED:“HUM”, “ACC” OR “EAC”24 VACTRANSFORMERHADHC TERMINAL STRIPW/G CfODTBACROUTDOORTEMPERATURE SENSOROR

1716COMMONFURNACETERMINALSTRIPRWYGOUTDOOR TEMPERATURESENSOR OR MANUALMODE RESISTOR24 VACTRANSFORMERHADHC TERMINAL STRIPW/G CfODTBACR90-122424 VACTRANS