Danfoss Optyma Plus Application Manuallines page 21

Application Guidelines
OP-MPLM028-035-044, OP-MPPM028-035-044- Emergency Wiring
A1 : EMC/RFI Filter (Compressor)
B1 : Condensing Pressure Transducer
B5* : Fan Speed Controller / Pressure Switch
M1 : Compressor
R2 : Discharge Temp. Sensor
R7 : Oil Separator Heater
Supply : Supply
CCH : Crankcase Heater
Installation
A2 : Frequency Converter
B2 : Suction Pressure Transducer B3 : High Pressure Switch
C1 : Run Capacitor (Fan)
M2 : Fan Motor
R3 : Suction Temp. Sensor
R8 : Compressor Speed
Potentiometer
Fan : Fan
Aux : Auxiliary
A3 : EMI Filter (Controls)
F1 : Fuse (Control Circuit)
Q1 : Main Switch
R4,R5 : Auxiliary Temp. Sensor (optional)
S1 : Room Thermostat (optional)
Alarm : Alarm
A4 : Optyma ™ Plus Controller
B4 : Low Pressure Switch
K1 : Contactor
R1 : Ambient Temp. Sensor
R6 : Crankcase Heater
X1 : Terminal
Comp. : Compressor
21
FRCC.PC.044.A6.02