1-14
The unit with Scroll Compressor can only rotate in one direction. For this reason, a protective device (phase protector) is
fitted to prevent incorrect wiring of the electrical phases. When the three phases are not connected correctly, the phase
protector operates, and the unit will not start. This devise is located in the control box of the outdoor unit.
The following table shows the LED indicator light for phase protector under normal operation and fault conditions.
PHASE PROTECTOR (OPTIONAL)
!
Warning
• Troubleshooting must be performed by qualified personnel.
Notes:
1. “+” indicates additional functions for PP01 phase protector.
2. When R phase missing, no LED or buzzer will indicate the error, but relay 71 and relay 81 will cut off.
Normal operation
Reverse phase
T phase missing
S phase missing
R phase missing
S &T phase missing
+
Overload
+
Sensor missing
+
-
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
High discharge temperature. Check the refrigerant system.
Switch off the unit. Plug in sensor.
LED
Description
PW
(Red)
P_R
(Yellow)
P_S
(Yellow)
P_T
(Yellow)
Actions
ON
OFF
Fast Blink
Summary of Contents for SB00B
Page 2: ......
Page 3: ...i OUTLINE AND DIMENSIONS SB40B 50B 40BR 50BR SB60B 75B 100B 60BR 75BR 100BR ...
Page 8: ...vi SL30C 40C 50C 60C 30CR 40CR 50CR MSS 75B 100B 125B 100BR NOTE FOR VERTICAL AIR DISCHARGE ...
Page 9: ...vii MSS100C MSS60C 75C 60CR 75CR MSS 150C 125BR ...
Page 95: ...MEMO ...
Page 96: ...MEMO ...
Page 97: ......
Page 100: ......
Page 106: ...vi SL30C 40C 50C 60C 30CR 40CR 50CR MSS 75B 100B 125B 100BR WEŠö W œuLŽ uBÐ uN m dH ...
Page 107: ...vii MSS100C MSS60C 75C 60CR 75CR ...
Page 123: ......
