APPENDIX A — WIRING SCHEMATICS (cont)
CHILLER CONTROL SCHEMATIC (cont)
TO |
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21 | 11 |
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| COMP'R OIL HEATER |
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| 11 |
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230V |
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| (BLK) |
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1C |
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| (WHT) |
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22 | 12 |
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| 12 |
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115V | (BLK) | (BLK) |
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1C |
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23 | 13 |
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| 13 |
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COM | (WHT) | (WHT) |
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1C |
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| 230V WIRING MODIFICATION |
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| COMP'R OIL HEATER |
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| (BLK) |
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| (BLU) |
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(WHT) |
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(BLK) |
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| (RED) |
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(YEL) |
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(RED) | 51 | (WHT) | (RED) | (WHT) | (RED) | (WHT) | (RED) | (WHT) |
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(ORN) | 50 |
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| T1 |
| T2 |
| T3 |
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(BRN) | 43 | (BLK) | 24VAC | 24VAC | 24VAC | |||
(BLK) | 17 | (BLK) |
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TO VFD |
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| (BRN) | (BRN) | (BRN) | (BRN) | (BRN) | (BRN) |
(CLR) | C | COMP'R DISCH |
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| HIGH PRESS |
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(BLK) | B |
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(RED) | A |
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(SHIELD) |
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| (RED) | (GRY) | (RED) | (GRY) |
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(RED) |
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(BLK) |
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(CLR) |
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(BLK) |
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(BRN) |
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| 1 | 2 |
WHT | WHT |
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| UPC |
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(WHT) | (WHT) |
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COMP'R OIL PUMP MOTOR |
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WINDING HIGH TEMPERATURE |
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(WHT) |
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(RED) |
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(GRY) |
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| 21 | 11 |
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| VOLTAGE | 2C | |
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| 12 | ||
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| 22 | |
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| PER JOB |
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| REQM'T | 2C | |
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| 23 | 13 |
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| 2C |
(GRN) |
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1 |
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2 | COM |
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3 | OPEN |
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4 | CLOSE |
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5 |
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6 |
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HGBP |
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ACTUATOR |
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(RED) |
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6 | 3C | 5 |
(WHT) |
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(BLU) | (BLK) | |
| 3C |
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4 |
| 2 |
HOT GAS BYPASS |
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(FR #7 & 8 HT EXCH) | ||
115V CONTROL ONLY | (BLK) |
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(BLU) |
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(RED) |
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(BLU) |
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(RED) | HGBP |
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(YEL) | SOLENOID |
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(BLK) |
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(BLK) |
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(YEL) | 4 | 2 |
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| 3C |
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SHOWN WIRED FOR 115V |
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2321
(GRN)
(BLU) |
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(RED) |
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(BLU) |
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(RED) | HGBP |
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(YEL) | SOLENOID |
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(BLK) |
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(BLK) |
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(YEL) |
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| 4 | 2 |
| 3C |
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230V WIRING MODIFICATION |
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HOT GAS BYPASS
(FR #1 - 6 HTEXCH)
YEL
(YEL) |
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BLK |
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(BLK) | M | COMP'R OIL |
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| PUMP MOTOR |
RED |
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(RED) |
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| LEGEND |
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CB | Circuit Breater |
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CCM | Chiller Control Module |
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HGBP | Hot Gas Bypass |
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ICVC | International Chiller Visual Controller |
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RHS | Relative Humidity Sensor |
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UPC | Universal Protocol Controller | ** | |
VFD | Variable Frequency Drive | ||
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Denotes Control Panel Terminal
Denotes Oil Pump Terminal
Denotes Power Panel Terminal
Denotes Motor Starter Panel Conn Denotes Component Terminal Wire Splice
Denotes Conductor male/Female Connector Option Wiring
*Standard on LF2 drive; optional on machines equipped with other VFDs.
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