Display Panel; Operating Instructions; Model 62 Automatic Digital Humidifier Control - Aprilaire 800 Series Owner's Manual

DISPLAY PANEL

TABLE 1 – DISPLAY PANEL
Indicator Light Function
Off Humidifier is turned OFF or not receiving power
Solid
Humidifier is turned ON
Green
Flashing
Humidifier is preparing to turn ON Occurs if power is disconnected,
Green
then restored with switch ON Flashes for 1 minute
Normal operation Fill valve is energized allowing water to flow into
Solid
canister via fill cup (Does not illuminate when tempering water
Green
during drain cycle)
Flashing
Fill and drain valves are pulsing to dislodge mineral build-up in
Green canister Flashes 10 times in 4 seconds
Fault mode Indicates canister needs water but cannot fill Humidifier
shuts down Occurs if high water probe does not detect water
Solid Red
after fill valve is energized for 40 minutes Call your heating and air
conditioning dealer for service
Solid
Normal operation Humidistat is calling for steam and humidifier is
Green operating
Normal operation Humidifier is operating but is not delivering
steam at rated capacity Occurs if humidifier has operated for 168
Solid
hours at less than rated capacity due to low water conductivity Light
Yellow
will turn green once water conductivity increases and humidifier is
delivering rated capacity If yellow light persists, consult your heating
and air conditioning dealer for canister options
Humidifier is preparing to drain (Fill valve is open tempering water
in canister) Occurs when humidifier is turned OFF, at end of season
drain (72 hours with no operation) and during forced drain down
Flashing
(168 hours of operation with no drain activity)
Green
Fill and drain valves are pulsing to dislodge mineral build-up in
canister Flashes 10 times in 4 seconds
Drain valve is energized and open, draining canister Valve remains
energized for 4 minutes
Solid
Indicates end of season shut-down Occurs if humidifier does not
Green
receive call for humidity in 72 hours Light remains on for 24 hours
Humidifier will turn on with the next call for humidity
Canister has reached the end of its life and needs to be replaced
Occurs after humidifier has operated for at least 168 hours and for
Flashing
an additional 24 hours at a current level below 75% of the maximum
Red
operating current Humidifier continues to operate, but at reduced
capacity
Operational problem with humidifier Humidifier shuts down Occurs
when unit detects over-current which can be caused by failure to
Solid Red
drain or other system failures Call your heating and air conditioning
dealer for service
8 English
OPERATING INSTRUCTIONS – MODEL 62 AUTOMATIC
DIGITAL HUMIDIFIER CONTROL
The Model 62 Automatic Digital Humidifier Control (ADHC) offers 2 modes
of operation, Automatic or Manual An explanation of both modes follows
(See FIGURE 2 on page 10 for Automatic Mode See FIGURE 3 on page 12 for
Manual Mode)
When in the Automatic Mode, this system offers the following benefits:
• You will receive the optimum amount of humidity so that your home
and its furnishings are protected from the damaging effects of excess
condensation or low humidity during the heating season. The ADHC
automatically adjusts your home's humidity based on the outdoor
temperature, increasing the time maximum comfort is maintained
• Simple operation with few adjustments. In the Automatic Mode, the ADHC
eliminates the need to manually adjust the control when outdoor temperature
changes It also eliminates the need to turn the dial setting to "OFF" during
the summer season
MODEL 62 AUTOMATIC DIGITAL HUMIDIFIER CONTROL INDICATOR LIGHTS
Call Dealer for Service: The red light indicates that the control is not operating
normally and that service is required
Humidifier ON: The green light indicates that the control is operating normally
and sending a call for humidity to the humidifier
BLOWER ACTIVATION
The Blower Activation switch is set to the "ON" position to allow the humidifier
control to activate the HVAC fan for maximum humidification
If the HVAC system has been idle for 1 hour, the humidifier control will activate
the HVAC system fan to sample the air for 3 minutes If the RH is lower than
the set point, the humidifier control will activate the humidifier and keep the
fan running The humidifier will continue to operate for 2 hours or until the
humidification set point is reached
If the RH set point has not been reached by the end of a call for heat, the
control will continue to operate the humidifier and the HVAC fan until the
humidification set point is reached or 2 hours have elapsed
When the Blower Activation switch is in the "OFF" position, the humidifier
control will only operate the humidifier if humidity is required and the HVAC
system fan is operating or the HVAC system is producing heat
NOTE: If used in conjunction with an Aprilaire 8570 Communicating
Thermostat, and the Blower Activation feature is desired, DO NOT wire the A B
communication terminals
English 9