INSTALLATION INSTRUCTIONS (CONTINUED)
Mount Fan Pack Housing
The Fan Pack installs between the studs of a standard 16” on-center
wall. Drywall on both sides of the wall must be removed for piping
and wiring the Fan Pack. To ensure proper operation, the Fan Pack
must be mounted level. Use the four 1-1/2” mounting screws
provided to attach the housing to the wall studs. See Figure 6.
Grille Installation
Use the two 5/8” screws to attach the Fan Pack grille to the fan
housing and drywall. See Figure 6. If painting the grille is desired,
see a painting professional for acceptable paint products for high
temperature (212°F), high humidity environments.
Fan Pack Hose Connections
Connect the steam hose to the Fan Pack and use hose clamp to
secure. See Figure 7. If more than 6 feet is required, use insulated
hard pipe as shown in Figure 11. See Specifications & Dimensions
(page 5) for the affect on capacity. Ensure the trap is filled with water
before making steam connections.
Connect 3/8” ID condensate tubing to the Fan Pack and use wire-
tie to secure See Figure 7. To create a trap, make a 6” loop in the
condensate hose. See Figure 4. NOTE: The 6” loop must be located
below the Fan Pack connection. Do not kink the condensate hose. Use
wire ties to secure the loop. The loop is required to prevent steam
from escaping into the drain.
FIGURE 6 – Wall Opening and Mounting
14-1/4"
7-1/4"
16"
Wall Cut-out
90-1550
FIGURE 7 – Fan Pack Hose Connections
90-1560
Condensate
Steam
Electrical
ELEVATION
The preferred location for the dispersion tube/fan pack is higher than
the humidifier so that the steam hose has a constant downward
slope of at least 2” per foot from the dispersion tube/fan pack to the
humidifier. If hard pipe is used, the slope can be 1/4” per foot. With the
constant downward slope, any condensation that forms in the steam
hose will drain back into the steam canister. See Figure 8.
FIGURE 8 – Dispersion Tube Mounted Above Humidifier
90-1521
90° long sweep
or two 45° elbows
Pitch*
Duct
Dispersion tube
Steam hose or pipe.
Insulate pipe with 1” fiberglass
to reduce steam loss.
* Pitch steam hose down
from dispersion tube to
humidifier:
2"/ft (15%) minimum
when using steam hose.
1/4"/ft when using
hard pipe.
11
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