2
DO locate the unit:
– With the bottom of the unit at least three inches
above the maximum expected snow accumulation
level.
– In accordance with the minimum clearances de-
scribed above.
– To minimize the length of refrigerant piping required.
– To provide adequate service clearances.
– On a level concrete pad (or other sturdy, weather
resistant platform).
– Isolated from the building structure to avoid trans-
mission of vibrations.
In general, short runs of refrigerant piping are better than
long runs. Fifty feet is the longest line set allowed with
Amana split system heat pumps.
Locate the unit to provide safe access for future mainte-
nance and service. If possible, discuss unit location with
the owner before proceeding.
Rooftop Installations Only
Place the unit on a level, weather resistant platform. Be
sure the roof will support the weight of the unit and
platform. For approximate unit weight, see the “Specifi-
cation Sheet”. If in doubt about the adequacy of the roof,
it is your responsibility to contact a qualified architect or
structural engineer before installing the unit.
Application Note
For proper performance, the indoor equipment and duct-
work must be adequate for moving about 400 CFM of
indoor air for every ton of cooling capacity to be installed.
If they are not, modify the ductwork or indoor equipment
accordingly.
I. Refrigerant Piping
Refrigerant Line Sizing
See unit “Specification Sheet” for required line sizes. Be
sure to use the correct size as using smaller vapor lines
can decrease unit performance. These sizes are suitable
for line lengths of fifty feet or less. It also assumes that the
indoor coil will not be more than forty feet above or below
the outdoor unit. Longer runs and greater lifts are not
recommended.
Routing of Refrigerant Lines
All of the vapor line must be insulated. The insulation
must include a vapor barrier.
The liquid line must be outside of the vapor line’s insula-
tion.
If part of the liquid line must run through an area that will
be hotter than 120°F, then that portion of the liquid line
must be insulated.
Avoid burying refrigerant lines. If you must bury them, first
dig the trench so that it gradually slopes toward the
compressor (at least 1 inch per 10 feet). Then, insulate
the liquid and suction lines separately. Enclose all under-
SAFETY GUIDELINES
1. Allow only qualified, experienced technicians to install
or service this unit.
2. Install the system in accordance with all local codes.
If no local codes exist, follow National Codes (NEC in
the U.S., CEC in Canada).
3. Open the electrical disconnect switch before electri-
cally connecting the unit.
4. Before operating the unit, be certain it is properly
grounded.
5. The unit contains refrigerant gas under pressure.
Avoid puncturing or breaking any tubing.
6. Before operating the unit, complete the refrigerant
connections.
GENERAL
This manual covers only the installation of the remote heat
pump. For information on accessories, see the unit
“Specification Sheet”.
Shipping and Handling
Check the unit for any shipping damage. If damage is
found, contact the company where you purchased the
unit. If no damage is found, carefully remove all shipping
material, and properly dispose of it.
Keep the unit as upright as possible. Laying the unit on its
side or top could cause equipment damage.
Location and Clearances
This unit is for outdoor installation only. Refer to Figure 1
for clearances from the sides of the unit to full walls and
other objects. These clearances will help avoid air recir-
culation. If installing two or more units at the same
location, allow at least 24 inches between units.
24"
24"
18"
12"
18"
MINIMUM CLEARANCES
SIDE VIEW
TOP VIEW
5'
Figure 1
DO NOT locate the unit:
– Directly under a vent termination for a gas appliance.
– Within 3 feet of a clothes drier vent.
– Where the refreezing of defrost water would create
a hazard.
– Where water may rise into the unit.
