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Observe for approximately 30 seconds to see if stable within ± 0.5 VDC. Repeat at 35 VDC. Check speed of conveyor and adjust time/temp. display if necessary. Seal pots with Glyptol or nail polish. L1 A+ L1 A+ 4 A. FUSE 1 A. FUSE . RESISTOR L 2 A - P 3 P 2 P 1 4 A. FUSE 1 A. FUSE L 2 A - P 3 P 2 P 1 CHOKE MAX MIN IR CL TACH T 1 T 2 MAX MIN IR CL TACH T 1 T 2 BOARD P/N 369155 " B " BOARD P/N 369272 STYLE 1 STYLE 2 AND STYLE 3 CONTROL BOARD ADJUSTMENT NOTE: A digital meter must be used. Voltage at L1 and L2 terminals of the control board is to be 120 VAC± 10%. Connect a digital voltmetet to terminal T1 and T2, set the meter on DC scale. Turn speed control pot. (on oven control panel) to its maximum speed setting. Adjust the "MAX" pot. so the voltmeter indicates 22.6 to 22.8 VDC. Turn the speed control pot. to its minimum speed setting. Adjust the "MIN" pot. so the voltmeter indicates 1.4 to 1.5 VDC. Reset the speed control pot. to its maximum speed setting and check if voltage is still at 22.6 to 22.8 VDC. Readjust if necessary. Reset the speed control pot. to its maximum speed setting and check if voltage is still at 1.4 to 1.5 VDC. Readjust if necessary. If readjustment of either the "MAX" or "MIN" pot. was necessary, the opposite must always be Impinger I -–1000 Series Service Manual -Domestic checked until both "MIN" and "MAX" are in proper adjustment. Measure the speed of the conveyor and adjust the time/temp. display if necessary. Seal pots with Glyptol or nail polish. NOTE: Occasionally a new board (Style 2 and 3 only) is so far out of adjustment that you will be unable to adjust the correct voltage. To correct, turn both the "MAX" and "MIN" pots 10 turns in either direction and then 5 turns in opposite direction. This will center the pots and allow them to be calibrated. If after this procedure, the board will not adjust, it is probably defective. L1 A+ L1 A+ L 2 A - T 1 T 2 P 3 P 2 P 1 MAX MIN 1 A FUSE 4 A FUSE RESISTOR 1 A. FUSE L 2 A - T 1 T 2 P 3 P 2 MAX MIN P1 CHOKE 4 A FUSE BOARD P/N 369155 " B " BOARD P/N 369272 STYLE 2 L1 L2 A-A+ RESISTOR CAPACITOR MIN MAX S3 S1 T1 T2 S2 BOARD P/N 369155 STYLE 3 Impinger I -–1000 Series Service Manual -Domestic STEPPER CONTROL -ADJUSTMENT S/N 14975 AND ABOVE 1000 SERIES GAS OVEN S/N 14792 AND ABOVE 1200 SERIES GAS OVEN CURRENT SENSE DO NOT ADJUST Blue Gray Red Brown Red POWER J 5 J 4 J 3 J 1 J 6 LOCKED ROTOR To T/T display POTENTIOMETER Max. Conveyor Speed Adj. Min. Conveyor Speed Adj. TIME/TEMP Black to #4 White to #7 ON 12345 Heat Sink MOTOR 1. With power off, the five (5) dip switches located on the conveyor control (see drawing above) should be set as below. DIP SWITCHES CONTROL 1 2 345 SWITCH POSITION OFF OFF ON OFF OFF 2. With power off, the ten (10) dip switches located on rear of Time/Temp Display (see drawing on page 52) should be set as below. DISPLAY 12 34 5 67 8910 SWITCH POSITION OFF * * ON OFF OFF ON ON OFF ON *SWITCH 2 -OFF FOR 60HZ, ON FOR 50HZ *SWITCH 3 -OFF FOR °F, ON FOR °C 3. With conveyor running, set conveyor speed control so Time/Temp. Display indicates 5:00 minutes. Place a pan on the conveyor, measure (STOPWATCH) the time (SPEED OF PAN) of the leading edge in to leading edge out of oven. Turn the speed adjustment pot. on the rear of the Time/Temp. Display so display agrees with time measured by the stop watch. (See drawing on page 52). 4. Turn conveyor speed control fully counterclockwise and adjust the stepper control maximum speed pot (refer to drawing above) so the display indicates 50 seconds. 5. Turn conveyor speed control fully clockwise and adjust the stepper control minimum speed pot so the display indicates 30 minutes. NOTE: Repeat 4 and 5 to be sure settings are accurate. 6. Turn power off and set #1 dip switch to its (ON/OFF) other position and verify that the conveyor reverses direction when power is applied. Set conveyor travel direction as customer requests. CAUTION: ALWAYS REMOVE POWER BEFORE CHANGING CONVEYOR DIRECTION. Impinger I -–1000 Series Service Manual -Domestic REVERSING CONVEYOR DIRECTION SN 100-4389 (BODINE) 1. Shut off power at main breaker. 2. Remove control panel top. 3. Turn reversing switch (located on relay box) to obtain desired belt direction. 4. Reassemble in reverse order. SN 4390-14974 1000 SERIES GAS OVEN SN 4390-14791 1200 SERIES All ovens leaving our plant are wired to operate conveyors from left to right. To reverse conveyor direction, use the following procedure. 1. Shut off power at main breaker. 2. Remove control panel top. 3. Remove cover from relay box. 4. Reverse wires fastened to terminals A+ and A-. 5. Reverse wires fastened to terminals T1 and T2. Both set of leads must be reversed or oven will run at maximum speed with no speed adjustment possible. STEPPER DRIVE SYSTEM SN 14975 AND ABOVE 1000 SERIES GAS OVEN SN 14792 AND ABOVE 1200 SERIES 1. Shut off power at main breaker. 2. Remove control panel top. 3. Remove relay box cover. 4. Change position of dip switch #1 on stepper control boar...

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