49-7835   Rev. 8 15
ENGLISH  
Step 3 - Installation of the Outdoor Unit (Cont.)
E.  System Evacuation
NOTE– Do not open service valve.
•   Attach a manifold gauge, micron gauge, and 
vacuum pump to the suction line port using 
adapter AD-87 (see illustration).
•   Evacuate the system to at least 350 microns.
•   Close the vacuum pump valve and check the 
micron gauge.  If the gauge rises  150 microns 
in 60 seconds, the evacuation is incomplete 
or there is a leak in the system.  If the gauge 
does not rise 150 microns in 60 seconds, the 
evacuation is complete.
•   Once evacuation is complete, remove the 
adapter and hose connection from the suction 
line port and replaced the cap.
F.  Refrigerant Charging
•   Add any additional refrigerant after evacuation 
using a digital scale.
  NOTE: Charge liquid only.
•   Fill out the refrigerant charge label using  indelible 
ink.
•   Place the factory refrigerant charge found in 
table on page 15 in the box number 1.
•   Place the amount of additional refrigerant added 
in box number 2.
•   Add boxes 1 and 2 together and place the value 
in the sum box (D).
•   Adhere the filled out label in the proximity of the 
product charging port and under the outside 
units valve cover.
•   Write amounts on outdoor unit with permanent 
marker above the charging port if the label is 
missing. 
•   Remove the cap from the liquid line valve.  Using 
a hex wrench, open the valve, then replace and 
tighten the cap securly to avoid leaks.
•   Remove the cap from the suction line valve.  
Using a hex wrench, open the valve, then replace 
and tighten the cap securly to avoid leaks.
•   Wrap the line set, drain line, and 14/4 AWG wiring 
starting at the bottom of the bundle with an 
overlap type wrap until you reach the piping hole.
•   Use a sealant to seal the piping on both sides of 
the wall in order to prevent drafts, weather, or 
pests from entering the building.
This product contains fluorinated greenhouse 
gases covered by the Kyoto Protocol. Do not vent 
into the atmosphere.
Refrigerant type: R-410A
GWP* value: 2088
GWP = global warming potential
1
1+2=
oz
R410A
2
oz
2=
1=
B
C
D
F E
oz
A
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
INSTALLATION INSTRUCTIONS