Technical data

Table Of Contents
APPENDIX
6 720 803 687 (2012/11)86
Symbol Description Symbol Description
TB1 Terminal strip (supply voltage for internal and
external unit)
C. B Printed circuit board (PCB)
MC Compressor motor FUSE1-4 Fuse (6.3 A)
MF1, MF2 Fan motor 1 and 2
SW1 DIP switch — settings
21S4 4-way valve SW4 DIP switch — test mode
63H High pressure switch SW5 DIP switch — function selection
63L Low pressure switch SW7 DIP switch — function selection
SV Bypass solenoid valve
SW8 DIP switch — switch
TH3 Temperature sensor (liquid) J1-6 Jumper, module selection
TH4 Temperature sensor (hot gas)
SWP Pump empty switch
TH6 Temperature sensor
(evaporator/condenser)
CN31 Emergency mode plug
TH7 Temperature sensor (outside air)
LED1, 3 LED operating status
TH8 Temperature sensor (inverter) LED5, 6 LED motor status
LEV-A, LEV-B Expansion valves
CNAC Plug
DCL1, DCL2 DC link coil CNDC
ACL Reactor CNS
52C Contactor FAN11 Fan motor plug
RS Voltage peak protection
FAN12
ACTM Filter module FAN21
CE Trimmer
FAN22
SS Plug options
P. B Power supply circuit board SV2 Plug
R/S Terminals (L/N) CNM Plug for A-Control service tool
SC-R/S Screw terminals (L/N)
CNMNT Plug for M-NET adapter
SC-P1, P2 DC voltage screw terminals CNVMNT Plug for M-NET adapter
SC-N1, N2 DC voltage screw terminals
CNDM Plug for external signals
U/V/W Terminals (U/V/W) X51, 52, 54 Relays
CN2-5 Plug FET1 Motor drive, servo amplifier
PFC Converter
IPM Inverter N. F Interference suppressor
CB1-3 Trimmer LI/LO L-phase terminals
CNDC Plug
NI/NO N-phase terminals
CNAF E, EI Earth terminals
IGBT Inverter CNAC 1/2 Plug
LED1 LED, inverter status CN5
CN52C
52C Contactor
Table 48 Key to wiring diagram