Display Panel - Aprilaire 800 Installation & Maintenance Instructions Manual

DISPlay Panel

Table 4 – Display Panel
Icon function
Main switch . Press to turn humidifier on and off .
Resets timer for start-up water conditioning .
Solid green when humidifier is turned on .
light
Flashes green for one minute once power is restored if humidifier was operating when power was shut off .
Fill valve indicator .
Solid green during normal operation when canister water is being replenished .
light Flashes green (along with Drain light) indicating fill and drain valves are pulsing to dislodge mineral deposits .
Solid red if canister needs water but water is not detected . See Troubleshooting Guide .
Indicates call for humidity .
Solid green during call for humidity .
Solid yellow if humidifier cannot reach nominal output within first 48 hours of operation due to insufficient water conductivity .
light
Humidifier will continue to cycle valves in an attempt to reach capacity for an additional 48 hours . Approximately 1/10
teaspoon of table salt can be added to fill cup to increase conductivity of water .
Drain valve indicator .
Solid green to indicate start of drain cycle .
Drain cycle occurs:
1) To maintain nominal steam output during normal operation .
2) During end of season shut down . (End of season shut down occurs after 72 hours of inactivity .)
3) If humidifier has operated for 168 hours without a drain cycle .
light
4) When humidifier is turned off .
Flashes green (along with fill light) indicating drain and fill valves are pulsing to dislodge mineral deposits .
Flashes green when humidifier is turned off indicating canister is draining . When flashing stops, main power disconnect
can be turned off and front panel can be opened .
Indicates canister needs to be replaced or humidifier requires other type of service .
Flashes red when canister can no longer supply demand and needs to be replaced because electrodes have been corroded
or coated with mineral deposits . Humidifier may continue to generate steam but at a reduced capacity .
Flashes red if humidifier with new canister cannot generate steam due to insufficient water conductivity after 96 hours of
light
drain/fill activity . Approximately 1/10 teaspoon of table salt can be added to fill cup to increase conductivity of water .
Solid red if controller detects over-current between electrodes . Causes may include electrodes coated with mineral
deposits, blocked drain, or defect in drain valve circuit . See Troubleshooting Guide .
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