Protection Devices; Coresense™ Diagnostics - Emerson Copeland Stream Digital 4MFD-13X Application Manuallines

4.3.2.2 Compressors with CoreSense Protection module
Legend
A1 ....... CoreSense Protection module
A2 ....... OPS2 Oil pressure switch
A5 ....... Compressor terminal box
F6 ....... Fuse for control circuit
F7 ....... Fuse for control circuit
F8 ....... Fuse for control circuit
F10 ..... Thermal protection switch M21
K1 ....... Contactor M1
Figure 16
4.4

Protection devices

Independently from the internal motor protection, fuses must be installed before compressor
start-up. The selection of fuses has to be carried out according to VDE 0635, DIN 57635,
IEC 269-1 or EN 60-269-1.
4.5 CoreSense™ Diagnostics
CoreSense™ Diagnostics can be used for all 4M*D and 6M*D Stream Digital compressors. It
combines oil and motor protection into one module, replacing OPS1/2 and the electronic module
INT69TM. In addition to diagnostics, it provides advanced protection against faults such as high
discharge temperature, locked rotor, single/missing phase, voltage imbalance, low voltage. The
C6.3.2/0416-0716/E
K2 ....... Contactor M1 Y-connection
K3 ....... Contactor M1 Δ-connection
M21 ..... Fan motor / condenser
R2 ....... Crankcase heater
Y7 ....... Solenoid valve Digital
Y21 ..... Solenoid valve capacity control 1
Y22 ..... Solenoid valve capacity control 2
Y3 ....... Solenoid valve unloaded start
17