5
AA
AA
ROOM
TERMINATOR
FIGURE 1.4: TERMINATOR IN SOFFIT AREA
AA
AA
AAA
AAA
AAA
AAAAA
AAAAA
AAAA
SUPPLY
TUBING
ROOM
TERMINATOR
FIGURE 1.5: TERMINATOR IN CLOSET TOP AREA
SECTION 2: SYSTEM INSTALLATION
NOTICE: Before proceeding with the installation, we
recommend reading through this section of the
manual for an overall understanding of the air
conditioning fan coil unit and air distribution system
component installation procedures.
STEP 1: LOCATING THE UNIT
The fan coil unit may be installed in an unconditioned
space (as long as it is protected from the weather) such
as an attic, garage or crawlspace, or a conditioned space
such as a basement, closet or utility room (see dimen-
sions in Figures 2.2 and 2.3).
The fan coil unit is shipped set-up for horizontal supply
air discharge. This can be easily field converted to verti-
cal discharge, as detailed on pg. 9 and Figures 2.9A and
2.9B pg. 10.
When selecting a location, consider the locations (as
shown in Figures 2.4, 2.5 and 2.6) of the return air box;
routing of the plenum duct, supply tubing, refrigerant
lines, condensate drain line; and all recommended clear-
ances (see Figures 2.2).
Supply Tubing
In the case of two-story or split-level applications, supply
tubing may run from one story to another. It is small
enough to go in stud spaces, but this is often difficult
in older homes because of hidden obstructions in stud
spaces. It is more common to run the supply tubing
from the attic down through second story closets to
the first story terminators.
Supply tubing runs in the corners of the second story
rooms can be boxed in and are hardly noticeable since
overall diameter is only 3-1/4" (Model Number AC-ST6-
100).
Room Terminators
Terminators should be located only in the ceiling or floor
for vertical discharge. Horizontal discharge is accept-
able, but is sometimes more difficult to install. Two
excellent spots for horizontal discharge are in the soffit
area above kitchen cabinets (see Figure 1.4) and in the
top portion of closets (see Figure 1.5).
Terminators should always be out of normal traffic
patterns to prevent discharge air from blowing directly
on occupants. And they should not be located directly
above shelves or large pieces of furniture. Outside wall
or corner locations are recommended if the room has
more than one outside wall. Locating terminators away
from interior doors prevents short cycling of air to the
return air box.
SHIPMENT OF UNIT
Each fan coil unit is shipped in a single carton. Packed with
the unit, there are vibration isolation pads, a condensate
trap assembly and a factory installed primary float switch.
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