Service manual
Table Of Contents
- TopPage
- SPECIFICATIONS
- EXPLANATION OF CIRCUIT AND OPERATION
- [1] BLOCK DIAGARM
- [2] FUNCTIONS
- 1. FREQUENCY CONTROL
- 2. OVER CURRENT PROTECTION
- 3. COMPRESSOR PROTECTION CONTROL
- 4. POWER TRANSISTOR MODULE PROTECTION
- 5. SERIAL SIGNALS
- 6. THERMISTOR OPEN OR SHORT
- 7. MISWIRING CHECK
- 8. SAFETY TIME
- 9. PUMP DOWN SWITCH
- 10. CONTROL OF COMPRESSOR OR AND EXPANSION VALVE
- 11. DEFROST OPERATION
- 12. Power factor module Output voltage
- [3] ACTIVE FILTER CIRCUIT
- [4] EXPLANATION OF IPM DRIVE CIRCUIT
- FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES
- REFRIGERATION CYCLE
- DISASSEMBLING PROCEDURE
- PartsGuide
- EndPage
AEX3M18JR
1 – 5
RELAY P.W.B and POWER SUPPLY P.W.B.
from 4 WAY VALVE
from DIODE BRIDGE DB1 "~"
from CONTROL
P.W.B. "CN9A"
from IPM "U", "V", "W"
from IPM P.W.B. "CN114"
from POWER SUPPLY P.W.B.
from TERMINAL BOARD
POWER SUPPLY "N"
from TERMINAL BOARD
POWER SUPPLY "L"
from DC FAN MOTOR
from CONTROL BOX
from CONTROL P.W.B. "BCN15"
from ACTIVE FILTER MODULE
from TERMINAL BOARD
UNIT C "1"
from TERMINAL BOARD
UNIT C "N"
from CONTROL P.W.B. "BCN17"
from CONTROL P.W.B. "BCN16"
RELAY P.W.B.
POWER SUPPLY P.W.B.