Sullair SN55 User Manual page 54

3.17 Wiring diagram, VSD air-cooled parallel wye
Drawing notes
1 CUSTOMER TO FURNISH FUSED OR CIRCUIT BREAKER DISCONNECT PER LOCAL CODES.
2 REMOVE JUMPER FOR AUXILLIARY E-STOP STRING DEVICES.
BELDEN TYPE 9842 4 CONDUCTOR 2 TWISTED PAIR WITH SHIELD OR EQUIVALENT TO MATCHING TERMINALS ON NEXT COMPRESSOR FOR
3
SEQUENCING.
SEE TRANSFORMER CONNECTION TABLE FOR PROPER VOLTAGE CONNECTION. TRANSFORMER FUSING ON CLIPS LOCATED ON
4
TRANSFORMER X1/XF INTERNALLY JUMPERED. SEE TRANSFORMER FUSE CHART FOR SIZING.
5 REFER TO SEQUENCING PROTOCOL MANUAL.
6 SEPARATE DC CONTROL WIRING FROM AC CONTROL WIRING.
7 FAN IS OPTIONAL ON WATER COOLED MACHINES.
8 REMOVE JUMPER WHEN INLET AIR FILTER SWITCH (PSW1) OPTION INSTALLED.
9 REMOVE JUMPER WHEN PHASE MONITOR RELAY (PHMRLY) OPTION INSTALLED.
10 SEE WIRING CHART FOR POWER AND MOTOR WIRE SIZE.
11 STANDARD MACHINE DISPLAY 24VDC WIRED TO PS; TB1 USED WITH AIRLINX OPTION.
12 2M FAN MOTOR CAN BE WIRED WITH OPTION 1 OR OPTION 2.
NOTE
The VSD air-cooled parallel wye A1000 is 460V
only. It cannot be wired for 230/575V.