Daikin FXHQ-M, Engineeiring Data

Page: 32 / 36

EDUS39-600-F5 Installation
FXHQ-M 31
11-4 CENTRALIZED CONTROL
• For centralized control, it is necessary to designate the
Group N umber. For details, refer to the manual of each
optional controllers for centralized control.
• Set the remote controller to the FIELD SET MODE. For
details, refer to HOW TO SET IN THE FIELD in the remote
controller manual.
• When in the FIELD SET MODE, select mode N o. 12, then
set the FIRST CODE N O. to [1]. Then set SECO N D CODE
N O. to [01] for FORCED OFF and [02] for O N /OFF OPER-
ATIO N . (FORCED OFF at factory set)
12. TEST OPERATION
Refer to the section TAKE SPECIAL CARE DURING CON-
STRUCTION on page 185.
• Make sure if the service lids are closed on the indoor and
outdoor units.
• After finishing the construction of refrigerant pipe, drain
pipe, and electric w ire, conduct the check operation by
referring to the installation manual of the outdoor unit.
• The operation lamp of the remote controller w ill flash w hen
a malfunction occurs. Check the displayed malfunction
code to identify the trouble. An explanation of malfunction
codes and the corresponding trouble is provided in the
installation manual of the outdoor unit.
It any of the items in Table 6 are displayed, there may be a
problem
w ith the w iring or po w er, so check the w iring again.
Table 6
• If U3 is lit up, the malfunction code sho w s the check oper-
ation has not been performed yet.
12-1 HOW TO DIAGNOSE FOR MALFUNCTION
With the power on, it is possible to monitor the type of
malfunction by looking at the malfunction code displayed
in the remote controller.
If nothing is displayed in the remote controller, check the fol-
lo
w ing items before attempting a diagnosis based on the mal-
function code, as they might be a cause.
• Disconnected or incorrect w iring (bet w een po w er supply
and the outdoor unit, bet w een the outdoor and indoor units,
and bet w een the indoor unit and the remote controller)
• Burnt out indoor or outdoor unit fuse
• “ ” w ill be displayed for a fe w seconds on the remote
controller immediately after the po w er is turned on.
This display indicates that the remote controller is being
checked to see
w hether it is ok or not, and does not indicate
a malfunction.
SETTI N G
Mode
N o.
SECO N D
CORD N O.
FIRST
CORD
N O.
FIELD SET
MODE
Remote control display Content
“ Under Cen-
tralized Control is lit
• There is a short circuit at the
FORCED OFF terminals (T1, T2).
U4 is lit
UF is lit
• The po w er on the outdoor unit is
off.
• The outdoor unit has not been
w ired for po w er supply.
• Incorrect w iring for the transmis-
sion w iring and / or FORCED OFF
w iring.
• The transmission w iring is cut.
N o display
• The po w er on the indoor unit is off.
• The indoor unit has not been w ired
for po w er supply.
• Incorrect w iring for the remote con-
troller w iring, the transmission w ir-
ing and / or the FORCED OFF
w iring.
• The remote controller w iring is cut.