14
(2) Actuation
• The following table explains FORCED OFF and ON/OFF
OPERATIONS in response to Input A.
(3) How to select FORCED OFF and ON/OFF OPERATION
• Turn the power on and then use the remote controller to
select operation.
11-4 CENTRALIZED CONTROL
• For centralized control, it is necessary to designate the group
No. For details, refer to the manual of each optional control-
lers for centralized control.
• Set the remote controller to the FIELD SET MODE. For
details, refer to the “HOW TO SET IN THE FIELD”, in the
remote controller manual.
• When in the FIELD SET MODE, select mode No. 12, then set
the FIRST CODE NO. to “1”. Then set SECOND CODE NO.
to “01” for FORCED OFF and “02” for ON/OFF OPERATION.
(FORCED OFF at factory set)
12. TEST OPERATION
Refer to the section of “FOR THE FOLLOWING ITEMS,
TAKE SPECIAL CARE DURING CONSTRUCTION AND
CHECK AFTER INSTALLATION IS FINISHED.” on page 4.
• Make sure if the service lids are closed on the indoor and out-
door units.
• After finishing the construction of refrigerant pipe, drain pipe
and electric wire, conduct the check operation referring to the
installation manual of the outdoor unit.
• The operation lamp of the remote controller will flash when a
malfunction occurs. Check the malfunction code on the liquid
crystal display to identify the point of trouble. An explanation
of malfunction codes and the corresponding trouble is pro-
vided in the installation manual of the outdoor unit.
It any of the items in Table 6 are displayed, there may be a
problem with the wiring or power, so check the wiring again.
Table 6
• If “U3” is lit up, the malfunction code shows the check opera-
tion has not been performed yet.
12-1 HOW TO DIAGNOSE FOR MALFUNCTION
With the power on, it is possible to monitor the type of mal-
function by looking at the malfunction code displayed in
the remote controller.
If nothing is displayed in the remote controller, check the follow-
ing items before attempting a diagnosis based on the malfunc-
tion code, as they might be a cause.
• Disconnected or incorrect wiring (between power supply and
the outdoor unit, between the outdoor and indoor units, and
between the indoor unit and the remote controller)
• Burnt out indoor or outdoor unit fuse
• “
” will be displayed for a few seconds on the remote
controller immediately after the power is turned on.
This display indicates that the remote controller is being
checked to see whether it is ok or not, and does not indicate
a malfunction.
Diagnose with the display on the liquid crystal display
remote controller.
1. With the wired remote controller. (NOTE 1)
When the operation stops due to trouble, operation lamp
flashed, and “
” and the malfunction code are indicated in
the liquid crystal display. In such a case, diagnose the fault
contents by referning to the table on the malfunction code list
it case of group control, the unit No. is displayed so that the
indoor unit No. with the trouble can be recognizde. (NOTE 2).
2. With the wireless remote controller.
(Refer also to the operation manual attached to the wireless
remote controller)
When the operation stops due to trouble. the display on the
indoor unit flashes. In such a case, diagnose the fault con-
tents with the table on the malfunction code list looking for
the malfunction code which can be found by following pro-
cedures. (NOTE 2)
(1) Press the INSPECTION /TEST OPERATION button,
“
” is displayed and “ 0 ” flashes.
(2) Press the PROGRAMMING TIME button and find the
unit No. which stopped due to trouble.
Number of beeps
3 short beeps
Perform all the following
operations
1 short beep
Perform (3) and (6)
1 long beep
No trouble
Wire specification
Sheathed vinyl wire or cable (2 wires)
Gauge
AWG 18-16
Length
Max. 328 ft.
External terminal
Contact that can ensure the minimum appli-
cable load of 15 V DC, 10 mA.
FORCED OFF
ON/OFF OPERA-
TION
Input “ON” stops operation
(impossible by remote controllers.)
Input OFF
→
ON
turns ON unit.
Input OFF enables control by remote controller.
Input ON
→
OFF
turns OFF unit.
SETTING
Mode
No.
SECOND
CORD NO.
FIRST
CORD NO.
FIELD SET
MODE
Remote control display
Content
“
” (under cen-
tralized control) is lit up
• There is a short circuit at the
FORCED OFF terminals (T1, T2).
“U4” is lit up
“UF” is lit up
• The power on the outdoor unit is off.
• The outdoor unit has not been wired
for power supply.
• Incorrect wiring for the transmission
wiring and / or FORCED OFF wiring.
• The transmission wiring is cut.
No display
• The power on the indoor unit is off.
• The indoor unit has not been wired
for power supply.
• Incorrect wiring for the remote con-
troller wiring, the transmission wiring
and / or the FORCED OFF wiring.
• The remote controller wiring is cut.
Summary of Contents for FXHQ12MVJU
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