6
Use both the Horizontal Duct Cover Kit (CHK001A) and
Round to Square Duct Kit (RSDK01A) to complete the
conversion.
1. Loosen the four bottom screws (Figure 7)(3) at the
bottom of the duct opening and insert the L-shaped
metal strips (2) from the Round to Square Duct Kit as
indicated. Retighten bottom screws (3).
Figure 7
2. Drill eight 1/8”D holes (1) as indicated in Figure 7.
3. Secure the sides with the four self-tapping screws (4).
Included in the Round to Square Duct Kit.
4. Secure the top left L-shaped metal strips and the
sides of the right L-shaped strip with the eight hex
head self-tapping screws included in the kit.
5. Align the horizontal duct covers (Figure 8)(1) so that
the holes (2) on sides of the covers line up with the
holes (3) on the installed strips. Secure with screws
included in the Horizontal Duct Cover Kit.
Figure 8
Ductwork
Duct systems and register sizes must be properly de-
signed for the C.F.M. and external static pressure rating
of the unit. Ductwork should be designed in accordance
with the recommended methods of Air Conditioning
Contractors of America Manual D (Residential) or Manual
Q (Commercial). All ductwork exposed to the outdoors
must include a weatherproof barrier and adequate insu-
lation.
A duct system should be installed in accordance with
Standards of the National Board of Fire Underwriters for
the Installation of Air Conditioning, Warm Air Heating and
Ventilating Systems. Pamphlets No. 90A and 90B.
The warm air supply duct from the unit through a wall
fabricated of combustible material may be installed with-
out clearance. However, minimum clearances for the unit
must be observed as shown in Specification Sheet.
The outlet duct should be provided with an access panel.
For vertical airflow, the ductwork should be attached to
the roof curb prior to installing the unit. Ductwork dimen-
sions are shown in the Amana PRC roof curb installation
manual.
If desired, supply and return duct connections to the unit
may be made with flexible connections to reduce possible
unit operating sound transmission.
Filters
CAUTION
To prevent property damage due to fire
and loss of equipment efficiency or
equipment damage due to dust and lint
build up on internal part, never operate
unit without a filter installed.
Even though a return air filter is not supplied with this unit,
there must be a means of filtering all return air.
Refer to Specification Sheet provided with unit for filter
size information.
If using the Over/Under Transition Kit, the filter(s) may be
located in the return air duct(s) or return air filter grille(s).
Filters installed external to the unit should be sized in
accordance with their manufacturer recommendations. A
throwaway filter must be sized for a maximum face
velocity of 300 feet per minute.
Filter Installation
Important: When installing a filter, the air flow arrows on
the filter must point toward the indoor blower.
VII. Condensate Drain
Condensate Drain Connection
This unit has a built-in trap - no external trap is required;
the drain may be extended using 3/4” PVC piping.
3
2
1
18 1/8
9 3/4
6 5/16
1
1
2
3
4
9 5/16
5 7/8
9 3/4
3 3/4
1
3
4
3 5/8