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BAD INSTALLATION
Figure 6
SUPPLY DUCT
WARM AIR
1. The humidifier body is not mounted level on the duct. The
water which flows to the distribution tray and through the
evaporator pad will all run down one side of the evaporator pad.
2. The bypass collar and tube and humidifier body are not
mounted level. This will restrict air-flow through the humidifier
as well as create uneven air-flow over the evaporator pad and
activating sensors.
3. The bypass tube used is well over the 36" , the flex tube is not
pulled tight and the most direct route to the opposite duct was
not taken. This will restrict air flow through the humidifier as
well as create uneven air-flow over the evaporator pad and
activating sensors
•INSTALLATION TIP: In this type of installation the
installer should have mounted the bypass collar &
damper in the most convenient location to run ducting
back to the unit. If for some reason it was necessary to
run ducting like this, hard metal ducting and elbows
(sold separately) should have been used rather than the
flex tube. The install should always try to find the most
direct route to the duct.
bypass collar maybe more than the recommended 30"
apart the use of hard ducting rather than flexible ducting
will make up for any restrictions or turbulence which
would occur in flexible ducting. Flexible ducting maybe
the most convenient for installation purposes however
when it comes to air-flow it is highly restrictive (see fig 7),
its use should be kept to a minimum and when used it
should be pulled as tight as possible.
Figure 7
FLEX LOOSE
EQUIVALENT LENGTH = 9 FEET
HARD DUCTING ELBOW (90°)
EQUIVALENT LENGTH = 10 FEET
RETURN DUCT
COLD AIR
Bypass required is
more than 30" and
installer is using
flex tube
Unit is not level
Bypass collar and
humidifier not parallel
While the humidifier and
FLEX PULLED TIGHT
EQUIVALENT LENGTH = 2 1/2 FEET
FLEX DUCTING ELBOW (90°)
EQUIVALENT LENGTH = 30 FEET
Model 7000 Flow Through Humidifier
PREPARING THE HUMIDIFIER
FOR INSTALLATION
Model 7000 humidifiers are designed to be mounted on the
return duct (cold air) for safety reasons. This will minimize the
exposure to high temperatures and extend product/component
life. Always take precaution to ensure that water supply tube,
water drain tube, any electrical wiring does not become kinked
or come into contact with sharp edges or hot surfaces.
CAUTION: When cutting or drilling into ducting take care not to
damage any air-conditioning coils or other furnace apparatus.
CAUTION: Wear safety glasses and work gloves when installing
this unit, sharp metal edges can cause severe injury.
CAUTION: Turn the furnace off before starting this installation.
STEP #1 – Right hand ducting or Left hand ducting.
Depending on your furnace, or for the convenience of your
installation it may be necessary to convert the humidifier from
right hand ducting to left hand ducting. Follow the steps below
to switch the side which the bypass duct will attach to. NOTE –
SWITCH THE DUCTING ONLY IF YOUR APPLICATION
REQUIRES IT.
1. Remove the humidifier front cover, which is secured in place
with a plastic thumb screw at the bottom of the cover. Tilt the
cover away from the body slightly and then lift up the cover to
free the hooks at the top of the unit.
2. Remove all loose components packaged inside and any
packaging. With a firm pull, disconnect the water tube from the
water nozzle at the top of the distribution tray. (fig 8)
Figure 8
3. Remove the two screws which secure the side panel in place
(a short handled screw driver will give you easier access to the
screws). (fig 9)
4. Lift the humidifier side out of the right hand position, turn the
part and position it on the other side of the humidifier (fig 10)
Figure 10
Figure 9
5
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