INGENIA CAH, Installation, Operation And Maintenance Manual

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Installation, Operation and Maintenance Manual for Ingenia Outdoor Units CAH-OD-16-00
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COVER THE UNIT
Cover the Unit properly if it is not fully assembled by the end of the work day and exposed to
the environmental conditions (wind and rain).
8.1 Condensate Traps
The purpose of a condensate trap is to allow condensate to drain while preventing air from
being drawn into the unit or air being forced out of the unit. If the cooling coil section is sup
plied with more than one drain, each drain connection must have its own independent trap
(refer to Figure 12A). A trap should be equipped with two tees and plugs to allow for easy
access for cleaning, inspection and priming (refer to Figure 12B).
8.1.1 Draw-thru Traps (Figure 12B)
P is the fan inlet pressure in (in. W.G.). Filter loading, duct losses, external system ef-
fects should be taken into account when considering the fan inlet pressure. The formula
provides the trap height needed with no safety factor. The designer can include a safety
factor as he or she sees fit.
8.1.2 Blow-thru Traps (Figure 12B)
P is the fan outlet pressure in (in. W.G.) Filter loading, duct losses, external system ef-
fects should be taken into account when considering the fan inlet pressure. The formula
provides the trap height needed with no safety factor. The designer can include a safety
factor as he or she sees fit.
8.2 Coil Removable Access Panels
If the coil removable access panel is removed, the contractor must re-apply new membrane
around the access panel when finished. This may also be the case if the coil needs replacing.
It is important to make sure that the grommets, when reinstalling the panel, seal properly
around the coil pipes. In the case of direct expansion refrigeration coils, and if there are no
grommets, caulking around the coil pipes will be necessary.
8.3 Ingenia Panels
Ingenia offers both fiberglass type insulated panels as well as foam injected panels. The
foam panel offers a better thermal resistance, provides a stronger more rigid panel and elim-
inates any moisture penetration inside the insulation. The foam used is ecologically friendly
which acts as an insulation as well as a vapor and air barrier. It is made from recycled plas-
tics and soy based materials. It contains no formaldehyde nor CFC’s or HCFC.
Refer to Figure 13 for cutting and sealing an opening in a foam panel.