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The drum contains all the small parts and installation hardware. It is closed by a round metal damper (10B) that will be used later in
the installation process. Open the drum to remove all the parts, then re-assemble the drum without the damper.
1. Required tooling
Tin snips, 3/32" drill, pliers, screwdrivers, electric drill, hammer, centre punch, medium sand paper.
IMPORTANT NOTE : This humidifier is supplied with RECEX ® screws that allows the use of either
a Robertson or Phillips head screwdriver.
2. Typical installations (Please see Fig. 1)
There are two frequently encountered types of installations: LOW-BOY furnace (1.1) and HI-BOY furnace (1.2).
3. Humidifier location (Please see Fig. 1, 2 and 3)
HOW IT WORKS : This humidifier uses a motor driven evaporator pad. Warm air is by-passed from the warm air plenum and forced
through the evaporator pad while it turns in the water pan. Humid air is drawn back into the return duct.
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In selecting the best location for the unit, please take both dimensions and serviceability in consideration.
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The humidifier must be installed in such a way that if a leak occurs, the water could not cause any damage to the property.
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This model can be installed on either the supply or the return duct of a forced air heating system. It is easily reversible for right or
left hand air input. However, the pictures represent the humidifier installed on the return duct.
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It is recommended to install this humidifier on the return duct (cold air).
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The total dimensions are: 14" x 11" x 11-1/2". The opening in the duct is 7-5/8" x 6-3/8".
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Please refer to the general view of a typical installation (Fig. 2).
4. Assembling the humidifier (Please see Fig. 4)
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The humidifier must be assembled before installation. Kit No. 1 contains all the material you need to assemble and install
the humidifier.
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Choose the side of the humidifier body that will serve as air input and attach the input collar with four screws.
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Push the air input collar (4.4) from inside the body and attach it from outside with four screws.
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Carefully position the centre groove that receives the drum shaft. It has to be vertical and the opening facing up.
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In the same way, install the motor plate (4.5) to the opposite side. This plate has no mandatory position.
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Fasten the motor (4.1) to the motor plate (4.5) on the side of the humidifier. Kit No. 5 contains the motor (4.1) and two screws (4.2).
5. Installing the humidifier (Please see Fig. 2 and 3)
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Please refer to the general view of a typical installation.
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Choose the location of the template and make sure that a distance of approximately 14" between the furthest left vertical line of
the humidifier opening and the centre of the air take off collar can be obtained.
This 14" dimension is given for a typical installation, some installations may differ.
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Apply the humidifier template (#1) on the return duct, level it and then attach it to the duct.
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Starting from the vertical line of the opening (the one closest to the warm air duct), measure 14" and mark the centre of the air
take-off opening.
WARNING : Always check that you are not about to cut or drill into any air conditioning or electrical accessories during installation.
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Mark the four screw holes and the four corner holes through the template and pierce the duct with a 3/32" drill.
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Remove the template, drill a starting hole and cut a rectangular opening that will correspond to the back opening of the humidifier.
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Fasten the humidifier to the duct with four screws. The humidifier casing should be level from side to side and from back to front.
6. Installing the air take-off collar (Please see Fig. 2 and 10)
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Center the air take-off collar on the point previously marked on the warm air duct.
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Hold the collar (2.3) on the duct and mark the four fastening holes and the inside zone of the collar.
WARNING : Always check that you are not about to cut or drill into any air conditioning or electrical accessories during installation.
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Drill the four fastening holes (3/32" dia).
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Make a starting hole and cut a round opening for the air take-off collar.
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Fasten the air take-off collar to the duct with screw #1 while making sure that the air damper is installed between the collar and
the air duct. The hole on the outer edge of the air damper should line up with hole #1 of the take-off collar, and the finger pull
protrudes outward. (Fig. 10A)
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Install screws #2 and #3.
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Close the opening to approximately 50%.
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Install screw #4 by piercing the damper, which will hold it in position. OPTIONAL : If the damper is snugly in place and can remain
in a fixed position, screw #4 may be left out. This will allow for easier opening and closing of the air damper.
7. Installing the flexible duct (Please see the general view Fig. 2)
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Measure the required duct length so it does not sag. Cut the excess portion.
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Slide the flexible (2.1) duct on the air take-off collar (2.3) and secure it by inserting the plastic pins (2.2) through the vinyl in
between two reinforcement wires.
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Repeat this operation at the humidifier side.
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