24
Installation Inspection and Testing
English
Installation
Step 4-4 Adding refrigerant (if needed)
The outdoor unit is charged with sufficient R-410A refrigerant to
support up to a 24.6-ft line set. For lengths greater than 24.6 ft,
you must add 0.16 oz of refrigerant per foot of additional
length, after the lines are evacuated.
1 Calculate the additional refrigerant required:
ʒʒϩͱɇͱЇʀʪϑͱ˙ŵࣛߦߣߢ࣑Ɵͱϩɇʪϑʪϩ˙ʪʪϩߤߦߨ࣒
× 0.16
2 Connect the common hose of the manifold gauge set to
the inverted R-410A refrigerant cylinder.
3 Place the refrigerant cylinder on a scale set to measure
ounces.
4 Open the valve on the tank.
5 At the manifold connection, bleed the refrigerant to
remove any air that may be present in the common hose.
6 Open the gauge manifold and charge the system with the
amount of refrigerant calculated in step 1.
7 Close the gauge manifold valve, close the valve on the
refrigerant tank, and remove the common hose.
Step 4-5 Preparing the system for
commissioning
1 Wrap the remaining refrigerant pipe lengths and
connection points with foam insulation.
2 Wrap the unwrapped portions of the piping bundle with
vinyl tape.
3 With the manifold gauge set still installed, open the
isolation valves on the outdoor unit to connect the
outdoor unit to the line set and indoor unit.
4 Remove the manifold set and vacuum gage.
Step 4-6 Commissioning the unit
The unit is commissioned using the Smart Install feature.
Smart Install can be started only with the remote control.
While Smart Install is running, you cannot operate the remote
control.
1 Make sure that the air conditioner is in standby status
(powered up with the controller in off mode).
2 Install batteries in the remote control.
3 Hold down the
(Power), (Mode), and (SET)
buttons on the remote control simultaneously for 4
seconds.
4 Wait until Smart Install succeeds or fails (approximately 7
to 13 minutes).
ࣞ While Smart Install is running:
Type
Display
Indoor unit indicator
The progress is displayed as a
number between 0 and 99 on
the indoor unit display.
ࣞ When Smart Install succeeds: Smart Install ends
with a ringing sound, and the air conditioner
returns to standby status.
ࣞ When Smart Install fails: An error message is
displayed on the indoor unit display, and Smart
Install ends. To correct the problem, see the error
table on page 25.
To Next Page
Loading...
