![](/images/new-backgrounds/1314075/31407555x1.webp)
WIRING DIAGRAM CV-305 (60Hz)
INPUT SUPPLY | RECONNECT |
LINES | PANEL |
| 3 |
3 | SCR3 |
|
| 223 |
|
| D3 | G3 |
204D
7.5OHM
220 W
R1
| SNUBBER/BYPASS | |||
204C | 8 | P.C. BOARD | ||
221 | 2 |
|
| |
222 | 3 | J5 | 6 | |
223 | 4 | |||
J5 | ||||
224 | 1 | 5 | ||
| 7 |
| ||
|
|
|
400 A. 50mV
+
.05uf
320VAC 600V
U | V | C |
W | ||
|
| 6 |
SCR2 |
224A
+
-
SHUNT
213B
L1 | L2 | L3 N.B. | 9 | |
F | ||||
|
|
|
12
2 | D2 | G2 |
222 |
+
C1
+
L5 RED 218
219 WHITE
213A
-
|
|
|
|
| * | 2 |
|
| 3 | 2 |
|
|
|
|
|
| C2 |
|
|
| 213B |
|
|
| L1 CHOKE |
|
|
| - |
| |||
|
|
|
|
| * |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
| B |
|
|
|
|
|
| + |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
| * |
|
|
|
|
|
|
|
| 204D |
| C3 |
|
|
| 224B |
|
|
|
|
|
| 214B |
|
|
| |||
|
|
|
|
| S1 |
|
|
|
| 5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
| LINE |
|
|
|
|
|
|
|
| 204C |
| + |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
| SWITCH |
|
|
|
| 8 |
|
|
|
| SCR1 204A |
| C4 |
|
|
|
|
|
|
|
|
|
|
|
|
| 320VAC | .05uf |
|
|
|
|
|
|
|
|
|
| E |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 600V |
| |||
|
|
|
|
|
|
|
|
|
| 11 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| LOCAL/REMOTE SWITCH |
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
|
|
|
|
|
|
| CONTROL |
|
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
|
| 1 |
|
| 221 | *** | D5 | D4 |
|
|
| L2 |
| (SHOWN IN LOCAL POSITION) |
|
|
| ||||||||
|
|
|
|
|
| * |
|
|
|
|
|
|
|
|
|
| P. C. BOARD |
|
|
|
| 76 |
| 213A |
| ||||||||
|
|
|
|
|
|
|
| A |
|
|
| D1 |
|
|
|
|
|
|
|
| S4 |
|
|
| |||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| RED |
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
| 4 |
|
|
|
|
|
|
|
|
|
|
|
| 1 |
|
|
|
| 77 |
|
| 214A | ||
|
|
|
|
|
|
|
|
|
|
|
|
|
| 224 |
| 224B |
|
|
|
| 218 |
|
| 277 |
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
| 7 |
|
|
|
|
|
|
|
| J10 |
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2 | 219 |
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
| D |
|
|
|
|
|
| G2 | 172 | L3 | 172 | 4 |
|
| WHITE |
| 276 |
| 377 |
|
| S3 |
| |
|
|
|
|
|
|
|
|
|
| 10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| G3 | 173 | 173 | 2 J1 |
|
|
|
|
|
| 376 |
|
|
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 8 | 214B |
|
|
|
|
| 21 | WIRE FEEDER | |||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| POWER FACTOR | 204A | 171 |
| 204A | 1 |
| 3 | 224B |
|
|
|
|
| 377 |
| VOLTMETER | ||
|
|
|
|
| * |
|
|
|
|
|
|
|
|
| G1 |
| 171 | 3 |
| 7 | 277 |
|
|
|
|
|
| SWITCH | |||||
|
|
|
|
| TO A SYSTEM GROUND PER |
|
|
|
|
| ENHANCEMENT |
|
|
|
|
|
|
|
|
|
| 376 |
|
|
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||
|
|
|
|
| NATIONAL ELECTRICAL CODE. |
|
|
|
| s | CHOKE |
|
|
| 213B | 4 | J2 |
|
|
| L6 |
| N.A. | CW |
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 202 |
|
| ***202 | 8 | 4 | 276 |
|
|
|
| 10K | 77 | H | WIRE FEEDER | |||
|
|
|
|
|
|
|
|
|
|
|
|
|
| 12V O2 TOP |
| L4 |
|
|
|
|
|
|
| ||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| 203 |
| 203 | 9 |
|
|
|
|
|
|
| OUTPUT | R2 | 76 | E | VOLTMETER | ||||
|
|
|
|
|
|
|
|
|
|
|
|
| s |
|
|
|
|
|
|
|
|
|
|
| CONTROL |
| F |
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 200 |
|
| 200 | 6 |
| 5 | 275 |
|
|
|
| 275 | 75 | G |
| |||
|
|
|
| 208/230/460 INPUT VOLTAGES |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||||||||
|
|
|
|
|
|
|
| 12V | O1 TOP |
|
|
|
|
|
|
|
|
|
|
|
| ||||||||||||
|
|
|
|
|
|
|
|
| 201 |
|
| 201 | 10 | J3 | 1 | 22 |
|
|
|
|
| 2 | C |
| |||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||||
RECONNECT |
| 208V | RECONNECT |
| 230V | RECONNECT |
| 460V |
|
|
|
|
|
| 6 | 4 |
|
|
|
|
| 4 | D |
| |||||||||
|
|
|
|
|
|
|
|
|
| 2 |
|
|
|
|
|
|
| ||||||||||||||||
| PANEL |
|
|
|
| PANEL |
|
|
| PANEL |
|
|
|
|
|
|
|
|
| 215 | 3 |
|
|
|
|
|
|
|
|
|
| N |
|
| C |
| 6 | 5 | 4 | C | 6 | 5 | 4 | C | 6 | 5 | 4 |
|
|
|
|
|
|
|
| 6 |
| 207 |
|
| 1 |
|
| 31 | J |
| |
|
| SECONDARY | L1 | 205 |
|
| 205 | 7 |
|
|
|
|
|
| 115 VAC | ||||||||||||||||||
|
|
|
|
|
| B |
|
|
| B |
|
|
|
|
|
| 1 |
| 208 |
|
| 2 |
|
| 32 | A | |||||||
|
| 9 | 8 |
| 7 | 8 |
| 7 | 8 |
| 7 | THERMOSTAT | 206 |
|
| 206 | 5 |
|
|
|
| J7 |
|
| |||||||||
| A |
| 9 |
| 9 |
|
|
|
|
|
|
| 4 |
| 209 |
|
| 3 |
| 41 | I |
| |||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| METER |
| 42 VAC | ||||||
| . | 3 | 2 |
| 1 | A 3 | 2 |
| 1 | A 3 | 2 |
| 1 |
|
|
|
|
|
|
|
| J4 | 3 |
| 210 |
|
| 4 |
| 42 | K | ||
| A0 |
|
|
| s |
|
|
|
|
|
|
|
|
|
| P.C. |
|
| |||||||||||||||
| 4 |
|
|
|
|
|
|
|
|
|
|
|
| 41A |
| 41 |
|
|
|
|
|
|
|
|
|
|
| BOARD |
|
| L |
| |
|
|
| F | E | D |
| F | E | D |
| F | E | D |
|
|
|
|
|
|
| 5 | 211 |
|
|
|
|
|
|
| B | GROUND | ||
|
|
|
|
|
| O1 TOP |
|
|
|
|
|
|
|
|
| S2 |
|
|
|
| |||||||||||||
| { |
|
|
|
| { |
|
|
| { |
|
|
| 42V |
|
|
|
|
|
|
| 2 | 212 |
|
|
|
|
|
| M |
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||
|
| 2 3 | 1 | 2 3 |
| 1 | 2 3 |
|
| 1 | 42A | 42B | 42 |
|
|
|
|
|
| VOLTS / AMPS | N.A. |
|
| WIRE |
| ||||||||
| TO S1 LINE SWITCH | TO S1 LINE SWITCH | TO S1 LINE SWITCH |
|
| CB1 10A |
|
|
|
|
|
| (SHOWN IN "VOLTS" POSITION) |
|
|
| |||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| FEEDER |
| ||
|
|
|
|
| 230/460/575 INPUT VOLTAGES |
|
|
|
|
|
|
| CIRCUIT |
|
|
|
|
|
|
|
|
|
|
|
|
| RECEPTACLE | ||||||
|
|
|
|
|
|
|
|
| s |
|
| BREAKER |
|
|
|
| ELECTRICAL SYMBOLS |
|
|
| |||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||
| RECONNECT |
|
| RECONNECT |
|
| RECONNECT |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| CUSTOMER | ||||||||||
|
| 230V |
| 460V |
| 575V |
|
|
|
|
|
|
|
|
|
| PER E1537 |
|
|
|
|
|
| ||||||||||
| PANEL |
|
|
| PANEL |
|
| PANEL |
|
| 58V | O3 TOP |
|
|
|
|
|
|
|
|
|
|
|
|
|
| CONNECTIONS | ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||
| 9 |
| 8 | 7 |
| 9 | 8 | 7 |
| 9 | 8 | 7 |
|
|
|
| 33 |
| 32 |
|
|
| CONNECTOR CAVITY NUMBERING SEQUENCE |
|
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| (COMPONENT SIDE OF P. C. BOARD) |
|
|
| ||||||||
|
| 6 |
|
| 4 | 6 |
|
| 4 | 6 |
|
| 4 |
|
| 33A |
| CB2 | 5A |
|
|
|
|
|
|
| |||||||
|
| 5 |
| 5 |
| 5 |
|
|
|
|
|
|
| 1 | 1 | 2 | 1 | 3 | 1 | 4 | 1 | 5 |
|
| |||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| CIRCUIT |
|
|
|
|
| |||||||||||||
|
| F | E |
| D | F | E |
| D | F | E |
| D |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
| BREAKER |
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| FAN |
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 3 | 4 |
| 6 | 5 |
| 6 |
|
|
| |
|
|
| 3 | 2 | 1 |
| 3 | 2 | 1 |
| 3 | 2 | 1 |
|
|
| 115V |
|
|
|
|
| 2 | 4 | 8 | 10 |
|
| |||||
| { |
|
|
|
| { |
|
|
| { |
|
|
| 58V | O3 BOT. | 31A |
|
|
|
|
| 2 PIN | 4 PIN | 6 PIN | 8 PIN | 10 PIN |
|
| |||||
|
| 2 3 | 1 | 2 3 |
| 1 | 2 3 |
|
| 1 |
|
|
|
|
|
|
| J10 | J1 |
| J4 |
| J2 | J3 |
|
|
| ||||||
|
|
|
|
|
|
| 31B |
| 31 |
|
|
|
|
|
|
|
| ||||||||||||||||
| TO S1 LINE SWITCH | TO S1 LINE SWITCH | TO S1 LINE SWITCH | s |
|
|
|
|
|
|
| J7 |
|
|
|
| J5 |
|
|
|
| ||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
| MAIN TRANSFORMER |
|
|
|
|
|
| N.A. WIRING VIEWED FROM REAR OF POTENTIOMETER |
|
|
|
| ||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| N.B. TAP LEADS A, B, AND C APPEAR ON THE TOP PRIMARY COILS |
| A.04 | |||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| OF 208/230/460V MACHINES ONLY. |
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
L12393
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number.