Air King 6000 Installation & Operating Instructions Manual page 8

SECTION 2. EXTERNAL SWITCH HUMIDIFIER CONTROL
(Figure 30).
To control the humidifier using a separate switch you will
need to purchase an air pressure switch from our parts
& service (1-800-465-7300) or another source. You will
need to set all three DIP switches in the ON position.
Locate the four HUMIDISENSE bypass terminals. Mount
the pressure switch on the hot air duct and connect wires
from the pressure switch's common & normally open
terminals to terminals 3 & 4 on the HUMIDISENSE bypass,
simply strip the end of your wire and push the wire into
the terminals. The humidifier will now operate whenever
the furnace fan runs.
SECTION 3. 24 VAC THERMOSTAT INTERLOCK
(Figure 31).
To control the humidifier using a 24 VAC interlock you will
need to purchase a length of 2 conductor solid copper
thermostat wire (readily available at most hardware
stores). You will need to set all three DIP switches in the
ON position. Refer to your furnace's instruction manual
and locate the furnace's low voltage (24 VAC) thermostat
terminal strip. It is generally located in the lower portion
of the furnace near the blower. On the furnace thermostat
terminal strip there are 5 to 7 low voltage terminals
marked "Y" "W" "G" "C" "R", there may be more or less.
Idendify the "C" & "W" terminals, sometimes the "C"
terminal is marked "Com", "24V Com" or B/C, in some
older furnaces with no "C" terminal the furnace chassis or body is the common terminal. The
"W" terminal may be marked "W1", on some heat pumps the first stage heating is the 'Y"
terminal. If you are unsure consult an HVAC professional, we are trying to connect to a 24 VAC
source which cycles ON & OFF with the furnace's heating cycle. Once connection is made at
the furnace connect the other end of the two wires to terminals 1 & 2 on the HUMIDISENSE
bypass terminals. Simply strip the end of your wire and push the wire into the terminals. The
humidifier will now operate whenever the furnace begins heating.
SETTING AND OPERATING THE DIGITAL HUMIDISTAT
CONTROL SPECIFICATIONS
• Supply Voltage – 24 volts AC.
• Output Voltage – 24 volts AC.
• Set Point Range – 15% to 60% RH.
• Display Range – 15% to 60% RH.
• Resolution – 1% RH.
• Accuracy - +/- 5% RH.
The model 6000 digital humidistat control components include the following (Figure 33):
Figure 33
Figure 34
Figure 35
Figure 36
Figure 37
1. MAIN ON/OFF POWER BUTTON FOR THE HUMIDIFIER. – Use this button only when turning
ON or OFF the humidifier.
67285037 Rev. B 11-14
Figure 30
Figure 31
Slanted Incremental Bar
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2. REDUCE RELATIVE HUMIDITY SET POINT BUTTON. – Use this button only when reducing the
relative humidity set point.
3. INCREASE RELATIVE HUMIDITY SET POINT BUTTON. – Use this button only when increasing
the relative humidity set point.
4. DIGITAL DISPLAY. – Displays (Figure 34) a) User Set Point. b) Set Point Number Indication. c)
Humidifier Operating Indication. d) Actual relative humidity being sensed. e) Incremental bar
indicating relative humidity status as it relates to the set point.
5. MAIN POWER GREEN LED. – Indicates that the main power to the humidifier is ON.
When power is first turned on to the humidifier the digital humidistat will display the default
set point, which is 35%. You may change this setting by using the Increase or Decrease button
on the control. If for some reason the power is lost to the humidifier (power outage or unit
becomes unplugged) there is a delay (30 sec to 1 min) before the control loses it's set point,
however if power is lost for any length of time the control will revert to the default settings. If
you notice that the control is consistently resetting to the set point this is an indication that, a)
You have not wired (or plugged in the transformer) the transformer to a CONSTANT 120 volt
supply (one which cannot be shut off via a switch) or b) The power connections (Two Black
Wires) to the humidifier are loose.
What is displayed will depend on what the set point is, what the relative humidity being sensed
is, and if the set point is being changed.
DIGITAL DISPLAY WHEN CHANGING THE HUMIDITY LEVEL (Figure 35)
When you start to change the set point (raising or lowering) the display will change, showing
two numbers and a pointing finger (the water droplets may be displayed as well depending on
what the relative humidity status was before you started changing the set point). The number
displayed beside the pointing finger is the set point and is the number you are changing – The
larger number on the left of the display is the actual relative humidity being sensed.
DIGITAL DISPLAY WHEN HUMIDIFIER HAS REACHED THE SET POINT (Figure 36)
When the relative humidity being sensed raises above the set point the humidifier does not
need to run and the control display will be similar to above – It will show two numbers and a
pointing finger. The number displayed beside the pointing finger is the set point – The larger
number on the left of the display is the actual relative humidity being sensed.
DIGITAL DISPLAY WHEN HUMIDIFIER IS HUMIDIFYING. (Figure 37)
When the humidifier is adding moisture to air the display will change – In the top right of the
display will be a number, this is the set point. - In the mid lower section of the display will be
water droplets, this is indicating that the humidifier is adding moisture. - The remaining portion
of the display will be taken up by a slanted incremental bar, This bar represents the percentage
of the set point achieved.
SLANTED INCREMENTAL BAR.
When humidifying the control will display the set point and a bar representing the percentage
of set point achieved – each bar represent approximately 10% of the set point. Below are a few
examples of humidifying displays showing a set point, an incremental bar, and what relative
humidity they represent.
1. Set point 40% - 50% of bars showing - relative humidity 20%
2. Set point 45% - 80% of bars showing – relative humidity 36%
3. Set point 50% - 50% of bars showing – relative humidity 25%
CONTROLLING THE HUMIDITY LEVEL
AND HUMIDIFIER OPERATION
HUMIDIFIER START UP
When you first plug in the 24 Volt transformer and turn on your humidifier you may hear a click.
This is the power getting to the control's relay. As well if you adjust the humidistat UP or DOWN
and past the sensed humidity level you may hear the control's relay clicking. This is normal as
the humidistat is just an ON/OFF switch, every time the humidistat is turned DOWN the power
is cut to the HUMIDISENSE control.
When starting up the humidifier for operation:
1. Make sure the transformer is plugged in and the water supply is turned on.
2. Make sure main power to the humidifier is turned ON.
3. Turn the humidistat up high, so it is calling for humidity.
4. Turn your furnace thermostat UP so the furnace cycles ON.
5. Once the HUMIDISENSE control senses heat the humidifier will turn ON. You will know because
the green "HUMIDISENSE" LED (Figure 23) on the front of the humidifier will turn ON.
6. After a few moments you should hear water trickling through the drain.
7. After your furnace has completed the heating cycle and shut off (by the thermostat) the
humidifier will cycle OFF. You will know because the green "HUMIDISENSE" LED (Figure 23)
on the front of the humidifier will turn OFF.
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