Test Run and Others
5
TD831077
V-6
Message displayed by turning the
“ITEM” switch to “4” when alarm LED
lights up during automatic address
operation.
1. Test Run
1-3. Alarm messages on CCU (CR-DYPTG)
∗ During normal operation, either “OUTDOOR” or “CB” alarm lamp on CCU lights up with alarm display of LED1-8 (red).
∗ In case either “OUTDOOR” or “CB” alarm lamp lights up during automatic address operation, turn the “ITEM” switch
to “4” to display alarm messages on LED 1-8 (red).
∗ In case of “INDOOR” alarm, only alarm LED lights up, and alarm messages are not displayed on LED 1-8 (red).
LED (red)
Alarm message
87654321
E06 ● O ●●●OO●
E07 ● O ●●●OOO
– ● O ●●OO●●
E15 ● O ●●OOOO
E16 ● O ● O ●●●●
E23 ● O ● O ● OOO
E24 ● O ● OO●●●
E25 ● O ● OO●●O
E26 ● O ● OO● O ●
E27 ● O ● OO● OO
E29 ● O ● OOO● O
L04 OO●●●O ●●
L05 OO●●●O ● O
L06 OO●●●OO●
F04 ● OO●●O ●●
F05 ● OO●●O ● O
F06 ● OO●●OO●
F07 ● OO●●OOO
F08 ● OO● O ●●●
F22 ● OOO● OO●
H25 O ●●OO●●O
F23 ● OOO● OOO
F24 ● OOOO●●●
F25 ● OOOO●●O
P02 OOO●●●O ●
P04 OOO●●O ●●
H06 O ●●●●OO●
P05 OOO●●O ● O
P03 OOO●●●OO
P17 OOOO●●●O
P18 OOOO●●O ●
Operation mode priority remote controllers
are set with 2 units or more.
Outdoor thermistor is either
open or damaged
Note: PC unit / AD unit
Protective device activated
High-pressure switch
Low-pressure switch
Abnormal discharge temperature
Negative phase protector
∗
∗
∗
∗
∗
∗
NOTE
∗: Alarm display LED lamps may all be lit up or all blink at once.
(Without∗: light up all at once only)
● CCU : Command control unit (incorporated in outdoor unit)
● PC unit : Power control unit
● AD unit : Additional unit
● PC comp. : Power control compressor
● AC comp. : Constant speed compressor
● SC comp. : Scroll compressor
Remote
controller
display
O: light ON / blinking ●: light OFF
CCU receives error signal from indoor unit.
CCU transmits error signal to indoor unit.
Starting auto. address setting is prohibited.
The number of connected indoor units
is less than the number set in CCU.
The number of connected indoor units
is more than the number set in CCU.
CCU transmits error signal to outdoor P.C.B..
CCU receives error signal from outdoor P.C.B..
Duplication of outdoor unit address.
The number of outdoor units does not correspond to number set in CCU.
Mis-wiring of outdoor unit control wiring.
Outdoor unit receives error signal.
Duplication of outdoor R.C. address setting.
From priority mis-setting remote controller
From non-priority setting remote controller
Discharge gas temp. (PC comp.): TH1
Discharge gas temp. (AC comp.): TH2
Outdoor no. 1 coil gas temp.: TH7/TH4
Outdoor no. 1 coil liquid temp.: TH4/TH2
Outside air temp.: TH9/TH5
Discharge gas temp. (SC comp.): TH3/TH1
Improper installation of discharge gas
temp. sensor (SC comp.): TH3/TH1
Outdoor no. 2 coil gas temp.: TH8
Outdoor no. 2 coil liquid temp.: TH5
Outdoor coil temperature: TH6/TH3
Thermal protector in FM or comp.
Defective phase.
Power supply voltage is unusual.
(The voltage is more than 260V or less
than 160V between L and N phase.)
PC, AC, SC comp.
SC comp.
PC comp.
AC comp.
SC comp.
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