ACPro Q7RE Series, Руководство по установке

Страница: 6 / 24

6
Return Duct
1. Assemble the collar by overlapping the two ends.
NOTE: One end of the collar is slotted and the opposite end
has two small holes. Position the end with small screw holes
underneath the slotted end.
2. Fasten the collar ends with two self drilling sheet metal screws.
3. Position the collar over the opening. Align the four holes in
the collar with the four dimples or holes (depending on unit
model) in the panel.
4. Secure the collar to the rear panel using self tapping screws
(10-16x.5).
Connecting Return & Supply Air Flexible Ducts
• Flexible ducts may be cut to the required length and spliced
with sheet metal sleeves and clamps.
Keep all ducts as short
and straight as possible. Avoid sharp bends.
Please follow
all instructions packed with duct.
• Flexible ducts can be secured to the corresponding collars
with the provided clamps. After the inner duct is connected
to the collar, pull the insulation and plastic sleeve over the
connection and clamp.
NOTE:
To prevent a loss in cooling
capacity, make sure all connections are tight.
• Homes with multiple supply ducts (or special applications), a
Y fitting is available for dividing the supply air to different areas
of the home for more efficient cooling.
NOTE:
For maximum
performance, insulate the Y fitting.
Locating & Installing the Return Air Assembly
To simplify installation, locate and install the return air assembly
first. See Figure 4 . If desired, the return opening can be located
inside a closet with louvered doors that has an open area equal
to or greater than a 12” x 20” grille. The return air grille can be
placed in the wall of a closet and the ducted into the filter box
through a boxed-in area at the closet floor level. Make sure the
filter is readily accessible.
NOTE:
The return air box with grille and filter should not be
located in heavy traffic areas like hallways or center of rooms.
A good spot is in a corner or under a table, if a minimum two
inch clearance is available.
1. Start the installation from under the home by cutting a small
hole in the sub-floor. Determine how the floor joist location
will affect cutting the opening needed for the return air box.
NOTE: Floor joists are generally located on 16” centers,
leaving 14-3/8” between joists.
2. After measuring the return air box (approximately 12-1/4” x
20-1/4”), cut the hole through the floor so that the box will fit
between the floor joists. Care should be taken when cutting
through carpeting to avoid snags. NOTE: In most installations it
will be necessary to cut a similar hole in the fiberboard directly
under the hole in the floor. However, if the floor is more than
ten inches deep, it will only be necessary to cut a hole for the
collar on the return air box or for the insulated duct.
3. Set the box into the opening and fasten with screws or nails.
4. Install the filter and return air grille in place.
Locating & Installing the Supply Damper(s)
CAUTION:
If installing this air conditioning system in
conjunction with a furnace, a damper must be
installed in the furnace base assembly to prevent
cold air from being discharged around the heat
exchanger. Damage to the heat exchanger and
asphyxiation may occur if a damper is not
installed.
Check with the furnace manufacturer for damper
requirements. Failure to install the required
furnace damper may invalidate code agency
listing and limited warranty on the furnace.
When locating the supply damper(s), carefully check floor joists
and frame members that could interfere with the installation of the
damper or flexible duct. Ideally, the damper ( Figure 5 ) should be
located in the bottom of the main duct, forward of center of the
home, at least three feet from the nearest register. The round
supply opening in the slanted side of the damper should face
the side of the home where the heat pump is located.
1. Locate the center of the heat duct by cutting a small hole in
the fiberboard below the duct at the desired location.
2. Cut a hole approximately 3/4” larger than the damper opening
in the fiberboard.
3. Cut a 9-1/8” x 13-1/8” hole in the duct and bend over all tabs
flat on the inside of the heat duct.
4. Insert the damper into the duct and bend over all tabs flat on
the inside of the heat duct.
5. Seal the opening between the fiberboard and damper or
flexible duct.
Condensate Drainage
A 3/4” condensate fitting extends out of the side of the unit
as shown in Figure 6 . The drain trap, shipped in the electrical
compartment, must be installed to prevent water from collecting
inside the unit.
1. Thread the elbow provided with the unit into the drain
connection until hand tight.
2. Connect the condensate tubing onto the fitting, forming a trap
( Figure 6 ) near the drain connection.
3. Route the condensate tube from the trap to a suitable drain.
NOTE: For proper drainage, make sure the trap is level to
the ground and tubing outlet is below trap level.
Transition
Duct Screws
Supply Air
Return Air
Duct
Dimples
Figure 3. Return & Supply Air Collars