9
Installation procedure
Indoor use only ( STI Model )
1. Carefully check package for damages during transportation and unit after opening the
package.
2. Requirements must be followed for installing location on the page of 6~7.
3. Ensure weights of units on the page of 4~5 and that structural strength of the box can
withstand of the weight of the unit.
4. Clean the roof surface of box for close adhesion of unit gasket to the surface.
5. Consult to box manufacturer for any processes necessary to ensure the integrity of the
exposed form in the panels is not compromised.
6. Check mounting surface as level of surface should be within 1/8inch per a feet.
7. Place carefully unit into the provided opening with the evaporator air flow directly forward the
door and ensure the grill not to damage during installation.
8. Secure that the condenser airflow is not obstructed.
9. Drain is not needed as condensate is vaporized by hot gas lines in the drain panel from the
compressor discharge.
10. Install trim pieces around the open on the ceiling of box.
Outdoor use only ( STX Model )
Installation is the same as indoor models except as follows :
1. Units must be curb mounted ( Figure 4 ~ 5 ). Cabinet size refer to dimension size on page 5.
2. The condensate drain outlet pipe is located on the side of the unit. Field piping may be
connected to the outlet provided it is adequately sloped and heated for freezing weather
conditions.
3. After connecting electrical power, reinstall compressor compartment cover and weather hood.
Figure 4. Curb placed on roof of box.
Figure 5. Roof membrane placed over curb.
Summary of Contents for SMART 7 STI022LR404A2
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