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Quantum Series
PREPARING THE CONDENSING UNIT (CONTINUED)
Installing the Condensing Unit
The condensing unit can be installed inside a well-ventilated area of the home, but it is typically installed outside. Exterior
applications will require the use of a protective housing, and the amount of sun exposure should be considered when selecting
the placement of the condensing unit.
Make sure there is a minimum of three (3) feet of horizontal clearance in every
direction around the unit (five feet is ideal).
Check that proper power is supplied.
Set the condensing unit level and with proper clearances in accordance with the instructions. As designated on the name plate,
make sure that the proper electric disconnect and fuse protection have been installed. Ensure that the unit is connected but not
turned on and is ready for refrigerant piping connections.
Indoor condensing unit installation:
Inside installations require special consideration, as there must be adequate ventilation to remove the heat created
during normal operations. An exhaust port with fan may need to be installed to ensure that heat is effectively removed
from the utility room. The exhaust area will need a return grille or some other provision for 800-1000 CFM of cool air to
enter the room to replace the exhausted air. Unobstructed airflow to and from the unit is a critical factor in the unit’s
overall performance.
Make sure there is a minimum of three (3) feet of horizontal clearance in every direction around
the unit (five feet is ideal).
This will assure that the unit can move the air around the room in an efficient manner.
Outdoor condensing unit installations:
You must utilize the exterior condensing unit housing for outdoor installations. Place the condensing unit on a solid
foundation in a location with adequate ventilation.
Make sure there is a minimum of three (3) feet of horizontal
clearance in every direction around the unit (five feet is ideal).
The unit should be elevated 18” in order to avoid any
possible flooding or damage by animals, and should be clear of leaves, dirt, and other debris.
Refrigeration Lines:
A 3/8” O.D. copper liquid line is required.
The refrigerant drier and the sight glass shall be installed (in that order) in the direction of the refrigerant flow in the liquid line
between the condensing unit and evaporator unit. Enclose the suction line with cellular Armaflex (or similar) insulation with a wall
thickness of at least half an inch.
SS9000 Suction Line Size Chart
Model
Line Set Diameter
3/4”
3/4”
7/8”
Line Set Length
<25ft
26-50ft
50-100ft
Vertical Rise
<3ft
3-10ft
>10ft
<3ft
3-10ft
>10ft
<3ft
3-10ft >10ft
SS12000 Suction Line Size Chart
Model
Line Set Diameter
5/8”
7/8”
7/8”
Line Set Length
<25ft
26-50ft
50-100ft
Vertical Rise
<3ft
3-10ft
>10ft
<3ft
3-10ft
>10ft
<3ft
3-10ft >10ft
