Test Run and Others
5
TD831077
V-9
¶ Monitor function of oil level
Oil level of compressor can be monitored by setting of DIP
switch on each outdoor unit P.C.B..
1 PC unit
Set DIP switch S1-5 to ON on the main P.C.B.. (Fig. 1-11)
* Main P.C.B. is the larger P.C.B. in PC unit.
2 AD unit
Set DIP switch S1-2 to ON on the P.C.B.. (Fig. 1-12)
Oil P 3 2 1
Oil level
Oil S 7 6 5
OOO Sufficient
● OO Insufficient
●●O None
LED
display
Oil S: Oil level of scroll compressor
Oil P: Oil level of power control compressor
Fig. 1-11
Oil S Oil P
4
on
off
51
ON
2 3
S1
LED ● OOO● OOO
87654321
Oil 7 6 5 Oil level
OOO Sufficient
● OO Insufficient
●●O None
LED
display
Oil
S1
1
ON
ON
OFF
2
LED
87654321
OOO
1. Test Run
LED (red)
Alarm message
Outdoor unit
87654321
H21 O ●●O ● O ● O
H22 O ●●O ● OO●
H23 O ●●O ● OOO
F21 ● OOO● O ● O
H29 O ●●OOO● O
H08 O ●●●O ●●●
H28 O ●●OOO●●
PC unit
Overload current
Lock current
Current is not detected when
compressor is ON
Current is detected when
compressor is OFF
MG SW is chattering
PC comp. oil sensor
SC comp. oil sensor
∗
∗
∗
∗
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
SC comp. CT detection
current
Oil sensor fault
AD unit
Overload current
Lock current
Current is not detected
when compressor is ON
Current is detected when
compressor is OFF
MG SW is chattering
----------
Comp. oil sensor
Fig. 1-12
O:light ON
●:light OFF
O: light ON
●: light OFF
Remote
controller
display