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25
Electrical
Connections
Stranded Wire Shown
Solid or Stranded Wire
Pre-Start-Up
27
Checklist
Perform the Check Operation -
- See installation manual before running Check Operation
system function.
ALWAYS PERFORM THE CHECK OPERATION.
NORMAL OPERATION WILL NOT BE POSSIBLE
WITHOUT PERFORMING THE CHECK OPERATION.
If you attempt Test Run or system operation "FAIL" is
displayed when operating the unit before the check
operation is completed. Once the Check Operation has
been performed put system in Test Run mode.
Before finishing:
Confirm operation of each indoor unit individually
- Check for cool or warm air flow depending on mode
- Confirm air flow and louver operation
- Make sure all remotes operate the units
Read actual installation manual for complete details
on the operating conditions and limitations during
"check operation."
auto diagnostic function
26
Before Turning
On Power
Was the system leak tested, purged with nitrogen and
1.
evacuated?
Have all refrigeration lines been insulated separately?
2.
Was the correct amount of refrigerant added? All HFI
3.
systems require the addition of refrigerant
Is the system electrical supply all connected according
4.
to instructions and codes?
Are all system electrical connections tight?
5.
Have the service valves been opened on the outdoor
6.
unit?
28a
Check Operation
(1) Turn on power to
the outdoor unit,
indoor units and
branch boxes.
(2) Press and hold the
CHECK button for
approximately 5
seconds.
(3) The number of
connected branch
boxes and internal
units will be displayed
on the display. Check
that the displayed
number matches the
actual number of
connected units.
LED Display
LED Display
Copyright © Fujitsu General America, Inc.
Copyright © Fujitsu General America, Inc.
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