Lincoln 1116 080 A User Manual

SERVICE MANUAL

(DOMESTIC)

IMPINGER CONVEYOR OVENS

MODEL

1116-080-A, 1116-080-A1, 1117-080-A, 1117-080-A1,

1130-080-A, 1130-080-A1, 1131-080-A, 1131-080-A1,

1132-080-A, 1132-080-A1, 1133-080-A, 1132-080-A1,

1130-08H-A, 1131-08H-A, 1132-08H-A, 1133-08H-A,

1161-080-A, 1162-080-A

WITH PUSH BUTTON CONTROLS

Lincoln Foodservice Products, LLC

1111 North Hadley Road

Fort Wayne, Indiana 46804

United States of America

Phone: (800) 374-3004

U.S. Fax: (888) 790-8193 • Int’l Fax: (260) 436-0735

Technical Service Hot Line

(800) 678-9511

www.lincolnfp.com

Imp2DigAdvServ

REV 3/20/08

SEQUENCE OF OPERATION

IMPINGER II ADVANTAGE, ELECTRIC

(OVENS WITH PUSH BUTTON CONTROLS)

1130-080-A

1130-080-A1

1130-08H-A

1131-080-A

1131-080-A1

1131-08H-A

1132-080-A

1132-080-A1

1132-08H-A

1133-080-A

1133-080-A1

1133-08H-A

1161-080-A

1162-080-A

120/208VAC

208 VAC

120/240VAC

240 VAC

120/208VAC

208 VAC

120/240VAC

240 VAC

60 HZ.

1 PHASE

3 PHASE

1 PHASE

3 PHASE

120/240VAC

120/208VAC

POWER SUPPLY

Electrical power to be supplied to the oven by a three conductor service for

single phase and a four conductor service for three phase.

Black conductor is hot.

Red conductor is hot.

Orange conductor is hot (used for three phase only).

White conductor is neutral.

Green conductor is ground.

CONTROL BOX AUTO

COOL DOWN

When the temperature in the control box reaches 120°F ± 3° (48.9°C ± 1.7°), the

cooling fan thermostat will switch power to the control box cooling fans. The

thermostat will interrupt power to the cooling fans when the control box

temperature falls to 100°F ± 3° (37.8°C ± 1.7°).

MAIN FAN CIRCUIT

Power is permanently supplied through the 10 amp fuses, through the normally

closed oven cavity hi-limit thermostat, to the normally open main power switch.

Power is also supplied to the normally open cooling fan thermostat. Closing the

main power switch energizes the coil of the oven start relay, it’s contacts close

enabling the 20 minute time delay relay. The 20 minute time delay relay supplies

120VAC to the oven fan relay, these normally open contacts now close

supplying 208/240VAC to the main fan motor. 120VAC is also supplied to the

cooling fans. 208/240VAC is supplied to the primary of the control transformer,

the conveyor motor and, through the air pressure switch, to the oven control.

Closing the main power switch supplies 208/240VAC to the primary of the

control transformer. Secondary voltage, 24VAC, is supplied to the oven control.

The oven control is set to desired temperature. The thermocouple will provide

varying millivolts to the oven control. The oven control supplies 208/240VAC to

the coil of the heater relay at intermittent intervals to maintain the desired

temperature. The display on the oven control will indicate when the heater relay

is energized.

TEMPERATURE CONTROL

NOTE: The display also indicates oven temperature.

CONVEYOR DRIVE

Closing the main power switch supplies 208/240VAC to the conveyor motor and

to the primary of the control transformer. Secondary voltage, 24VAC, is supplied

to the oven control. Setting the oven control to the desired time outputs voltage,

through a reversing switch, to the conveyor motor.

NOTE: The conveyor system uses a hall effect sensor and magnet to prove

operation of the conveyor motor. If the conveyor motor is not running, “BELT

JAM” is indicated on the display.

AUTOMATIC COOL DOWN

When the oven is started, the time delay relay timing circuit is enabled,

permitting the oven fans to run approximately 20 minutes after the oven is shut

off, to cool the oven. The time delay relay will keep the coil of the fan relay

closed, maintaining operation of the main fan and cooling fans.

Impinger II – Advantage Digital Express Service Manual - Domestic

SCHEMATIC DIAGRAM

MODEL 1116-080-A, 1116-080-A1, 1117-080-A, 1117-080-A1

Impinger II – Advantage Digital Express Service Manual - Domestic

SCHEMATIC DIAGRAM

MODEL 1130-080-A, 1130-080-A1, 1131-080-A, 1131-080-A1

SCHEMATIC DIAGRAM

Impinger II – Advantage Digital Express Service Manual - Domestic

MODEL 1132-080-A, 1132-080-A1, 1133-080-A, 1133-080-A1

Impinger II – Advantage Digital Express Service Manual - Domestic

SCHEMATIC DIAGRAM

MODEL 1161-080-A

Impinger II – Advantage Digital Express Service Manual - Domestic

SCHEMATIC DIAGRAM

MODEL 1162-080-A

Impinger II – Advantage Digital Express Service Manual - Domestic

SCHEMATIC DIAGRAM

MODEL 1130-08H-A, 1131-08H-A

Impinger II – Advantage Digital Express Service Manual - Domestic

SCHEMATIC DIAGRAM

MODEL 1132-08H-A, 1133-08H-A

Impinger II – Advantage Digital Express Service Manual - Domestic

TROUBLESHOOTING GUIDE

GAS OVENS

MODEL 1116-080-A

NAT. GAS

LP GAS

120VAC

60 HZ.

MODEL 1116-080-A1

MODEL 1117-080-A

MODEL 1117-080-A1

120VAC

LP GAS

SYMPTOM

POSSIBLE CAUSE

EVALUATION

Oven fan will not run

Incoming power supply

Check circuit breakers, reset if required. Check

power plug to be sure it is firmly in receptacle.

Measure incoming power, call power co. if needed.

Check, replace if necessary.

Fuse, 10 Amp

Fuse holder

Check, replace if necessary.

Hi-limit thermostat,

control box

Check for voltage on both sides of switch. Terminals

are normally closed. If open, reset and test oven for

proper operation. If thermostat will not hold, and

control box temperature is not exceeding 140°F

(60°C), replace thermostat.

Switch, main power

Main fan motor

Check continuity between switch terminals. Replace

switch as needed.

Check for 120VAC at motor. If no voltage is present,

trace wiring back to main power switch.

WITH POWER OFF: Check for opens, shorts or

grounds. Turn fan blade to check for locked rotor.

Check for shorts or grounds.

Capacitor

WARNING: Capacitor has a stored charge,

discharge before testing.

No control box cooling

Incoming power

Check circuit breakers, reset if required. Check

power plug to be sure it is firmly in receptacle.

Measure incoming power, call power co. if needed.

Check continuity between switch terminals. Replace

switch as needed.

Check for 120VAC at cooling fan. If no voltage is

present, trace wiring back to power switch. If voltage

is present, and motor does not run, check for opens,

shorts or grounds.

Switch, main power

Cooling fan

WITH POWER OFF: Check for locked rotor.

Check circuit breakers, reset if required. Check

power plug to be sure it is firmly in receptacle.

Measure incoming power, call power co. if needed.

Check the cooling fan thermostat. (Thermostat

closes at 120°F and opens at 100°F). With the

cooling fan thermostat pre-heated, check for

continuity. If switch is open, replace cooling fan

thermostat.

No automatic control box

cooling

Incoming power supply

Cooling fan thermostat

Cooling fan

Check for 120VAC at cooling fan. If no voltage is

present, trace wiring back to cooling fan thermostat.

If voltage is present, and motor does not run, check

for opens, shorts or grounds.

WITH POWER OFF: Check for locked rotor.

Check for adequate gas supply to oven.

Check to see that the manual gas shut off valve is

open. Also check flexible gas line connection for any

damage.

Oven will not heat

Gas supply

Manual gas shut off valve.

Main fan

If not operating, refer to “Oven fan will not run”.

Centrifugal switch of main fan

motor

Check for 120VAC at wire #5 (input to centrifugal

switch, located at 6-pin connector in raceway near

Impinger II – Advantage Digital Express Service Manual - Domestic

the main fan motor) to neutral. If no voltage is

present, trace wiring back to the main power switch.

If voltage is present, check for 120VAC at wire #22

(output of centrifugal switch) to neutral. If no voltage

is present at #22, and the motor is running, replace

the main fan motor.

Hi-limit thermostat,

oven cavity

Terminals are normally closed. If open, reset

thermostat and retest. If thermostat will not hold for

maximum oven temperature, and oven is not

exceeding temperature setting, check for proper

location of capillary bulb in its spring holder. If the

capillary checks okay, replace the hi-limit thermostat.

Check for 120VAC supplied to burner blower motor

at wire #13 to neutral. If no voltage is present, trace

wiring back to the main power switch. If voltage is

present, and the motor is not running, check for

opens, shorts or grounds.

Burner blower motor

Burner transformer

WITH POWER OFF: Turn motor to check for locked

rotor.

Check for 120VAC supplied to the primary of the

burner transformer. If no voltage is present, trace

wiring back to the oven cavity hi-limit thermostat. If

voltage is present, check for 24VAC at transformer

secondary. If there is primary voltage but no

secondary voltage, replace burner transformer.

Check for 24VAC at motor connector, wire #13 to

neutral. If voltage is not present, trace wiring back to

transformer. If voltage is present, check for voltage at

wire #14 to neutral. If no voltage is present at wire

#14, and motor is running, replace burner blower

motor.

Centrifugal switch of burner

blower motor

Ignition control

Check for 24VAC at ignition control terminals marked

“24V”, if no voltage is present, trace wiring back to

centrifugal switch. Check for 120VAC to ignition

control at terminal “L1” to neutral. If no voltage is

present, trace wiring back to main power switch.

When 24VAC is supplied to the ignition control, the

ignition control switches 120VAC to the hot surface

igniter If 24VAC and 120VAC are supplied to ignition

control, but there is no voltage at the hot surface

igniter, replace the ignition control.

Hot surface igniter

Ignition control

If 120VAC is present at hot surface igniter terminals,

visually check to see that the igniter is heating

(igniter may be viewed through the port in the end of

burner tube). The igniter should glow bright red. If the

igniter does not heat, replace the hot surface igniter.

After 45 seconds of hot surface igniter pre-heat, the

ignition control will switch 24VAC to the gas control

valves. Check for 24VAC output from ignition control

across terminals marked “valve” and “valve gnd”. If

no voltage is present, replace ignition control.

When 24VAC is supplied to the gas control valves,

the valve should open. Check for gas pressure at the

manifold tap located just before the burner. If there is

no pressure, check the incoming gas supply to be

sure all manual valves are open and flexible gas

hose is properly connected. If gas is present, and the

gas control valve is energized, but there is no gas

pressure at the burner manifold, replace the gas

control valves.

Gas control valves

Flame will not stay lit

Hot surface igniter

Six seconds after the gas valve opens, ignition must

Impinger II – Advantage Digital Express Service Manual - Domestic

occur. If flame is not detected, the ignition control will

shut off and lock out. To reset the ignition control,

turn off the power switch for 45 seconds, then turn

the switch on to re-try ignition. The ignition control

requires a minimum of 0.8 DC microamps to prove

flame. To check flame sensing operation, connect a

digital multimeter (capable of measuring DC

microamps) between the “ground” terminal on

ignition control and the ground lead.

NOTE: This is a current measurement and the meter

must be connected in series

If these readings are not achieved, replace hot

surface igniter.

NOTE: The DC microamp test must be conducted

with the oven in low flame (bypass) operation. Set

the temperature control to the lowest setting.

If there is sufficient microamp current, but the flame

will not stay lit, check for proper polarity of the

120VAC power supply.

If there is sufficient microamp current, and the

120VAC polarity is correct, but the flame will not stay

lit, replace the ignition control.

Power supply

Ignition control

NOTE: Check for proper ground connection on

ignition control.

NOTE: Flame should be on at

this time

Low flame is on,

but no main flame

Control transformer

Check for 120VAC supply to the primary of the

control transformer. If no voltage is present, trace

wiring back to the main power switch. If voltage is

present, check for 24VAC at the transformer

secondary. If there is primary voltage, but no

secondary voltage, replace the control transformer.

Check for 24VAC supply to control. If no voltage is

present, trace wiring back to control transformer. If

24VAC is present, check for a read-out on the

display. If there is 24VAC supplied, but there is no

read-out on the control display, replace the oven

control.

Oven control

If there is a read-out on the control, set the control to

maximum temperature (see installation operations

manual for temperature adjustment). With the control

set at maximum temperature, check for 120VAC at

the temperature regulation valve. If there is voltage at

the temperature regulation valve, proceed to

“Temperature regulation valve” for next check. If

there is no voltage at the temperature regulation

valve, trace wiring back to the oven control. If there is

no voltage output at the oven control, check the read-

out on the control. If the control reads “PROBE

FAIL”, this indicates that the thermocouple has failed

or become disconnected from the oven control.

Check to be sure that the thermocouple is securely

connected to the oven control. If the thermocouple is

connected to the oven control, and the control

indicates “PROBE FAIL”, disconnect the

Thermocouple

thermocouple from the oven control and measure the

resistance of the thermocouple. The thermocouple

should read approx. 11Ω. If these readings are not

achieved, replace the thermocouple. If these

readings are correct, proceed.

Impinger II – Advantage Digital Express Service Manual - Domestic

Oven control

If the thermocouple checks good, but the oven

control display indicates that there is a thermocouple

failure, replace the oven control. If the oven control

indicates a temperature reading but the oven won’t

heat, proceed.

Thermocouple

WITH POWER ON AND THERMOCOUPLE

ATTACHED TO THE OVEN CONTROL: Measure

the DC millivolt output of the thermocouple. Refer to

the thermocouple chart (located in the “Removal”

section of the manual) for proper millivolt readings. If

these readings are not achieved, replace

thermocouple.

Oven control

If the thermocouple checks good, but there is no

120VAC output to the temperature regulation valve,

replace the oven control. If there is 120VAC output to

the temperature regulation valve, proceed.

Check for 120VAC supplied to temperature

regulation valve. If voltage is present, listen for valve

to open and close. Also check for opens or shorts in

the operating coil. Replace temperature regulation

valve as needed.

Temperature regulation valve

Intermittent heating

Thermal/overload of main fan

and burner blower motors

The main fan motor and burner blower motor are

equipped with internal thermal protection and will

cease to operate if overheating occurs. As the

motors overheat and then cool, this will cause the

heating system to cycle on and off intermittently.

Improper ventilation or lack of preventive

maintenance may cause this problem. Also, most of

the problems listed under “Oven will not heat” can

cause intermittent failure.

Conveyor will not run

Power supply

Check for incoming voltage at line 1 to neutral. There

should be a reading of 120VAC. If not present, check

circuit breakers.

Fuse, 10 Amp

Fuse holder

Check, replace if necessary.

Hi-limit thermostat, control box Check for voltage on both sides of switch. Terminals

are normally closed. If open, reset and test oven for

proper operation. If thermostat will not hold, and

control box temperature is not exceeding 140°F

(60°C), replace thermostat.

Power switch

Check continuity between switch terminals. Replace

switch as needed.

Control transformer

Check for 120 VAC supply to the primary of the

control transformer. If no voltage is present, trace

wiring back to the oven power relay. If voltage is

present, check for 24 VAC at the transformer

secondary. If there is primary voltage but no

secondary voltage, replace control transformer.

Check for 120 VAC supply to the conveyor motor at

wire #14 to neutral. If no voltage is present, trace

wiring back to the primary of the control transformer.

If voltage is present and the motor will not run, check

the motor windings for opens or shorts.

WITH POWER OFF: Check the motor windings as

follows:

Conveyor motor

Grey to black - 38Ω approx.

Grey to blue - 38Ω approx.

Blue to black - 75Ω approx.

If any of the above fails, replace conveyor motor.

Check for shorts or grounds. Replace capacitor as

Capacitor, conveyor motor

Impinger II – Advantage Digital Express Service Manual - Domestic

needed.

WARNING: Capacitor has a stored charge,

discharge before testing.

Switch, conveyor reversing

Oven control

Check continuity between switch terminals. Replace

switch as needed.

If there is 120VAC supplied to the motor, and the

motor, capacitor, and reversing switch check good,

replace the oven control.

Conveyor motor runs, but NOTE: Display will indicate

there is no speed display

“Belt Jam”

Oven control

Check for output voltage from oven control to hall

effect sensor (sensor is located in conveyor motor).

Measure voltage at the motor connector, red wire

and yellow wire. Voltage should be approx. 10VDC. If

no voltage is present, trace wiring back to oven

control. If there is no voltage present at the oven

control, replace the oven control.

Conveyor motor

Oven control

If there is voltage supplied to the hall effect sensor,

check for a frequency output from the hall effect

sensor. Measure frequency across the yellow and

white wires at the motor connector. Frequency

reading should be approx. 25 – 100 Hz. If these

readings are not achieved, replace conveyor motor. If

the readings are achieved, proceed.

If the hall effect sensor readings are correct, but

there is no speed indicated on the display, replace

the oven control.

TROUBLESHOOTING GUIDE

ELECTRIC OVENS

Impinger II – Advantage Digital Express Service Manual - Domestic

1130-080-A

1130-080-A1

1130-08H-A

1131-080-A

1131-080-A1

1131-08H-A

1132-080-A

1132-080-A1

1132-08H-A

1133-080-A

1133-080-A1

1133-08H-A

1161-080-A

1162-080-A

120/208VAC

208 VAC

120/240VAC

240 VAC

120/208VAC

208 VAC

120/240VAC

240 VAC

60 HZ.

1 PHASE

3 PHASE

1 PHASE

3 PHASE

120/240VAC

120/208VAC

SYMPTOM

POSSIBLE CAUSE

EVALUATION

Oven fan will not run

Incoming power supply

Check circuit breakers. Reset if required. Call

power co. if needed.

Fuses, 10 Amp, motor and

controls

Check, replace if necessary.

Fuse holder

Check, replace if necessary.

Hi-limit thermostat,

Oven cavity

Terminals are normally closed. If open, reset

thermostat and retest. If thermostat will not hold

for maximum oven temperature, and oven is not

exceeding temperature setting, check for proper

location of capillary bulb in its spring holder. If the

capillary checks okay, replace the hi-limit

thermostat.

Switch, main power

Relay, oven start

Check continuity between switch terminals.

Replace switch as needed.

Check for 120VAC supplied to coil of relay. If no

voltage is present, trace wiring back to main

power switch. If voltage is present, check for pull

in of relay contacts. Replace relay as needed.

Check for 120VAC at terminal #1 to neutral on

time delay relay. If voltage is not present, trace

wiring back to 10A. fuse. If voltage is present at

terminal #1, check for 120VAC at terminal #2 to

neutral. If no voltage is present, and oven start

relay is closed, replace 20 minute time delay relay.

Check for 120VAC to coil of main fan relay. If no

voltage is present, trace wiring back to 20 minute

time delay relay. If voltage is present, check to

insure that relay contacts are closing. Replace

relay as needed.

20 minute time delay

Relay, main fan

Main fan motor

Check for supply voltage at motor. If no voltage is

present, trace wiring back to main fan relay.

WITH POWER OFF: Check for opens, shorts or

grounds. Turn fan blade to check for locked rotor.

Check for shorts or grounds.

Capacitor

WARNING: Capacitor has a stored charge,

discharge before testing.

No main fan cool down

20 Minute time delay

Check for 120VAC at terminal #2 to neutral while

the oven is ‘on’. Turn off the main fan switch,

120VAC should continue to be present for 20

minutes. If voltage is not present for approx. 20

minutes, replace the 20 minute time delay.

Check for 120VAC to relay coil, if no voltage is

present, trace wiring back to 20 minute time delay.

If voltage is present, be sure that relay contacts

stay closes during the 20 minute cool down.

Oven fan relay

Impinger II – Advantage Digital Express Service Manual - Domestic

Replace relay as needed.

Main fan runs after

20 minute cool down

Oven start relay

Contacts should open when main power switch is

turned off. Replace relay as needed.

20 Minute time delay

120VAC at terminal #2 should discontinue approx.

20 minutes after main power is switched off. If the

oven start relay contacts are open, and the

voltage continues at terminal #2 of the 20 minute

timer, for more than 20 minutes, replace the 20

minute time delay.

Oven fan relay

Check to insure that the relay contacts are

opening after the relay coil is de-energized.

Replace relay as needed.

20 Minute time delay

NOTE: On/ off operation of the main power switch

will set the timer to 20 minutes. If the timer is

accidentally reset, turn off the main circuit breaker

for 15 seconds to cancel.

No control box cooling

Incoming power

Check circuit breakers, reset if required. Check

power plug to be sure it is firmly in receptacle.

Measure incoming power, call power co. if

needed.

Switch, main power

Cooling fan

Check continuity between switch terminals.

Replace switch as needed.

Check for supply voltage at cooling fan. If no

voltage is present, trace wiring back to power

switch. If voltage is present, and motor does not

run, check for opens, shorts or grounds.

WITH POWER OFF: Check for locked rotor.

Check circuit breakers, reset if required. Check

power plug to be sure it is firmly in receptacle.

Measure incoming power, call power co. if

needed.

Check the cooling fan thermostat. (Thermostat

closes at 120°F and opens at 100°F). With the

cooling fan thermostat pre-heated, check for

continuity. If switch is open, replace cooling fan

thermostat.

No automatic control box

cooling

Incoming power supply

Cooling fan thermostat

Cooling fan

Check for supply voltage at cooling fan. If no

voltage is present, trace wiring back to cooling fan

thermostat. If voltage is present, and motor does

not run, check for opens, shorts or grounds.

WITH POWER OFF: Check for locked rotor.

Check for main fan operation. If it is not operating,

refer to “Oven fan will not run”.

Oven will not heat

Main fan motor

Air pressure switch

This normally open switch should close when the

main fan is activated. Refer to the “Removal and

installation” section for proper adjustment.

Replace as needed.

Control transformer

Check for 120VAC supply to the primary of the

control transformer. If no voltage is present, trace

wiring back to the main power switch. If voltage is

present, check for 24VAC at the transformer

secondary. If there is primary voltage, but no

secondary voltage, replace the control

transformer.

Oven control

Check for 24VAC supply to control. If no voltage is

present, trace wiring back to control transformer. If

24VAC is present, check for a read-out on the

display. If there is 24VAC supplied, but there is no

read-out on the control display, replace the oven

control.

Impinger II – Advantage Digital Express Service Manual - Domestic

If there is a read-out on the control, set the control

to maximum temperature (see installation

operations manual for temperature adjustment).

With the control set at maximum temperature,

check for supply voltage at mercury contactor. If

there is voltage at the mercury contactor, proceed

to “mercury contactor” for next check. If there is no

voltage at the mercury contactor, trace wiring back

to the oven control. If there is no voltage output at

the oven control, check the read-out on the

control. If the control reads “PROBE FAIL”, this

indicates that the thermocouple has failed or

become disconnected from the oven control.

Check to be sure that the thermocouple is

securely connected to the oven control. If the

thermocouple is connected to the oven control,

and the control indicates “PROBE FAIL”,

disconnect the thermocouple from the oven

control and measure the resistance of the

thermocouple. The thermocouple should read

approx. 11Ω. If these readings are not achieved,

replace the thermocouple. If these readings are

correct, proceed.

Thermocouple

Oven control

If the thermocouple checks good, but the oven

control display indicates that there is a

thermocouple failure, replace the oven control. If

the oven control indicates a temperature reading

but the oven will not heat, proceed.

Thermocouple

WITH POWER ON AND THERMOCOUPLE

ATTACHED TO THE OVEN CONTROL: Measure

the DC millivolt output of the thermocouple. Refer

to the thermocouple chart (located in the

“Removal” section of the manual) for proper

millivolt readings. If these readings are not

achieved, replace thermocouple.

Oven control

If the thermocouple checks good, but there is no

voltage output to the mercury contactor, replace

the oven control. If there is voltage output to the

mercury contactor, proceed.

Mercury contactor

Check for supply voltage to the contactor coil. If

voltage is present and the contactor will not

activate, replace the mercury contactor. Also

check each contactor for high voltage input and

output.

Heating element(s)

Check the Amp draw on each power leg for proper

load. Check the specification plate for rating

information. If the amp draw is high or low, check

the individual elements for opens, shorts and

proper resistance.

WITH POWER OFF: To check resistance of the

elements, remove all leads from the elements and

use a digital multimeter.

The element resistance is should be as follows:

208V – 27 ohms approx.

240V – 36 ohms approx.

Replace heating elements as needed.

Oven heats with switch off

Intermittent heating

Mercury contactor

The mercury contactor has probably failed in the

closed position. If there is no voltage to the

operating coil, but there is high voltage at the

contactor output, replace the mercury contactor.

The main fan motor is equipped with internal

Thermal/overload of motor

Impinger II – Advantage Digital Express Service Manual - Domestic

thermal protection and will cease to operate if

overheating occurs. As the motor overheats and

then cools, this will cause the oven to cycle on and

off intermittently. Improper ventilation or lack of

preventive maintenance may cause this. Also,

most of the problems listed under “Oven will not

heat” can cause intermittent failure.

Conveyor will not run

Power supply

Check circuit breakers, reset if required. Check

power plug to be sure it is firmly in receptacle.

Measure incoming power, call power co. if

needed.

Fuse, 10 Amp

Fuse holder

Check, replace if necessary.

Hi-limit thermostat, oven cavity Terminals are normally closed. If open, reset

thermostat and retest. If thermostat will not hold

for maximum oven temperature, and oven is not

exceeding temperature setting, check for proper

location of capillary bulb in its spring holder. If the

capillary checks okay, replace the hi-limit

thermostat.

Power switch

Check continuity between switch terminals.

Replace switch as needed.

Control transformer

Check for supply voltage to the primary of the

control transformer. If no voltage is present, trace

wiring back to the oven power relay. If voltage is

present, check for 24 VAC at the transformer

secondary. If there is primary voltage but no

secondary voltage, replace control transformer.

Check for supply voltage to the conveyor motor. If

no voltage is present, trace wiring back to the

primary of the control transformer. If voltage is

present and the motor will not run, check the

motor windings for opens or shorts.

WITH POWER OFF: Check the motor windings as

follows:

Conveyor motor

Grey to black - 240Ω approx.

Grey to tan - 240Ω approx.

Tan to black - 480Ω approx.

If any of the above fails, replace conveyor motor.

Check for shorts or grounds. Replace capacitor as

needed.

Capacitor, conveyor motor

WARNING: Capacitor has a stored charge,

discharge before testing.

Switch, conveyor reversing

Oven control

Check continuity between switch terminals.

Replace switch as needed.

If there is supply voltage to the motor, and the

motor, capacitor, and reversing switch check

good, replace the oven control.

Conveyor motor runs, but

there is no speed display

NOTE: Display will indicate

“Belt Jam”

Oven control

Check for output voltage from oven control to hall

effect sensor (sensor is located in conveyor

motor). Measure voltage at the motor connector,

red wire and yellow wire. Voltage should be

approx. 10VDC. If no voltage is present, trace

wiring back to oven control. If there is no voltage

present at the oven control, replace the oven

control.

Impinger II – Advantage Digital Express Service Manual - Domestic

Conveyor motor

If there is voltage supplied to the hall effect

sensor, check for a frequency output from the hall

effect sensor. Measure frequency across the

yellow and white wires at the motor connector.

Frequency reading should be approx. 25 – 100

Hz. If these readings are not achieved, replace

conveyor motor. If the readings are achieved,

proceed.

Oven control

If the hall effect sensor readings are correct, but

there is no speed indicated on the display, replace

the oven control.

REMOVAL, INSTALLATION AND ADJUSTMENTS

IMPINGER II ADVANTAGE SERIES

CAUTION

BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE IMPINGER

OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY.

MAIN FAN – REPLACEMENT

A. Shut off power at main breaker.

B. Remove motor cover from back of oven.

C. Disconnect wiring and mark for reassembly.

D. Remove bolts and slide back straight out of the oven.

E. Loosen the bolt from fan hub and remove fan from motor shaft.

NOTE: Measure distance from fan blade to rear wall assembly before removal to aid in reassembly.

F. Reassemble in reverse order and check system operation.

MOTOR, MAIN FAN – REPLACEMENT

A. Shut off power at main breaker.

B. Remove motor cover from back of oven.

C. Disconnect wiring and mark for reassembly.

D. Remove bolts and slide back straight out of the oven.

E. Loosen the bolt from fan hub and remove fan from motor shaft.

NOTE: Measure distance from the fan blade to rear wall assembly before removal to aid in reassembly.

F. Remove four screws from motor support assembly.

G. Remove motor mount clamp and remove motor from oven back.

H. Remove motor mount from motor.

I. Reassemble in reverse order and check system operation.

Impinger II – Advantage Digital Express Service Manual - Domestic

CAPACITOR – REPLACEMENT

A. Shut off power at main breaker.

B. Remove rear control box cover.

C. Discharge capacitor.

D. Remove capacitor.

E. Reassemble in reverse order and check system operation.

ON/OFF SWITCH – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and front control box cover.

C. Depress spring clips on sides of switch and push out.

D. Remove wires from switch and mark for reassembly.

E. Reassemble in reverse order and check system operation.

NOTE: Make sure switch housing is fully seated in control box housing.

FUSE HOLDER – REPLACEMENT

A. Shut off power at main breaker.

B. Remove rear control box cover.

C. Remove wires from fuse holder and mark for reassembly.

D. Remove mounting screws or mounting nut on fuse holder and remove fuse holder.

E. Reassemble in reverse order and check system operation.

COOLING FAN, CONTROL BOX – REPLACEMENT

A. Shut off power at main breaker.

B. Remove appropriate control box cover and conveyor if necessary.

C. Remove four mounting screws from fan frame.

D. Disconnect power cord and remove fan.

E. Reassemble in reverse order and check system operation. Check for air flow.

THERMOSTAT, COOLING FAN, REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and front control box cover.

C. Remove wires and mark for reassembly.

D. Remove two mounting screws and remove thermostat.

E. Reassemble in reverse order and check system operation.

BURNER BLOWER MOTOR – REPLACEMENT

A. Shut off power at main breaker.

B. Remove rear control box cover.

C. Unplug motor connector.

D. Remove three mounting screws from blower tube at burner housing.

E. Remove air shutter assembly from old motor for assembly on new motor.

F. Reassemble in reverse order and check system operation.

NOTE: Check air shutter at approximately ½ open and adjust to get a blue flame with an occasional

tip of yellow under high flame. A view port in the burner assembly should be used to observe flame.

HI-LIMIT THERMOSTAT, OVEN CAVITY – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and bottom finger assembly. Remove rear control box cover.

C. Remove capillary bulb from bracket in oven chamber and pull capillary tube through tube into

control box.

D. Remove all wires and mark for reassembly.

E. Remove mounting nut and remove thermostat.

Impinger II – Advantage Digital Express Service Manual - Domestic

F. Reassemble in reverse order and check system operation. Be sure capillary tube is securely in

the mount.

NOTE: Push reset button on new thermostat.

TRANSFORMER, BURNER – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and front control box cover.

C. Remove all wires from transformer and mark for reassembly.

D. Remove two mounting screws from transformer base and remove transformer.

E. Reassemble in reverse order and check system operation.

OVEN CONTROL – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and front control box cover.

C. Remove all wiring connections and mark for reassembly.

D. Remove oven control by pulling control from the mounting pins. Remove control from oven.

E. Before installing new oven control, set voltage jumper (located at the bottom center of the oven

control) to the proper voltage (120V/240V) position. Set frequency jumper to the proper

frequency (50Hz/60Hz). Install the four pushbutton extensions (included with the oven control)

by pushing the extensions onto the four set buttons on control.

F. Reassemble in reverse order and check system operation.

G. Set the oven control for the proper operating mode. The 1100 series ovens use a single

temperature control system. The oven control must be set to the proper operating mode. Set the

control as follows: With the oven power switch “off”, depress the “time” and “up” buttons and turn

the oven “on”. Control will indicate ”Imp I or Imp II” Release the buttons, The control will indicate

“Temp to store”. Press the “up” or “down” button until “Imp II” appears on the display. Press the

“temp” button. The control is now set for single burner operation.

TRANSFORMER – CONTROL – REPLACEMENT

See “TRANSFORMER –BURNER - REPLACEMENT

THERMOCOUPLE – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and bottom finger assembly.

C. Remove front control box cover.

D. Remove thermocouple from bracket in oven chamber and pull thermocouple through tube into

control box.

E. Remove two thermocouple wires from temperature control. Note wire color and location for

reassembly

F. Reassemble in reverse order and check system operation

THERMOCOUPLE MEASUREMENT

TEMPERATURE (°F) D.C. MILLIVOLTS

200°

250°

300°

350°

400°

450°

500°

550°

600°

2.8

4.0

5.1

6.0

7.1

8.2

9.3

10.4

11.5

Impinger II – Advantage Digital Express Service Manual - Domestic

BURNER CONTROL – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and front control box cover.

C. Remove wires from control and mark for reassembly.

D. Remove mounting screws from control and remove burner control.

E. Reassemble in reverse order and check system operation.

GAS VALVE – REPLACEMENT

A. Shut off power at main breaker.

B. Shut off gas supply to the oven and disconnect the flexible gas line to oven.

C. Remove rear control box cover.

D. Remove the manual gas shut-off valve.

E. Remove screws from the bulkhead plate on inlet gas pipe and remove inlet gas pipe.

F. Remove pilot tube and wiring from gas valve, Mark all wiring for reassembly.

G. Disconnect pipe union in gas line and remove gas valve and piping assembly.

H. Remove piping from gas valve.

I. Reassemble in reverse order and check system operation.

J. Check all gas line fitting for leaks.

K. Adjust the gas manifold pressure on the gas valve. Refer to the specification plate on the oven

for proper rating.

TEMPERATURE REGULATION VALVE – REPLACEMENT

A. Shut off power at main breaker.

B. Shut off gas supply to the oven and disconnect the flexible gas line to oven.

C. Remove rear control box cover.

D. Remove bypass tube from burner manifold.

E. Remove wiring from valve and mark for reassembly.

F. Remove four mounting nuts from burner manifold and disconnect pipe union.

G. Remove temperature regulation valve and piping from oven.

HOT SURFACE IGNITER – REPLACEMENT

A. Shut off power at main breaker.

B. Shut off gas supply to the oven and disconnect the flexible gas line to oven.

C. Remove conveyor and control box covers.

D. Remove temperature regulation valve. See “TEMPERATURE REGULATION VALVE”.

E. Disconnect wires from burner control.

F. Remove three mounting screws and remove burner venturi.

G. Remove mounting nut and remove hot surface igniter assembly.

H. Reassemble in reverse order and check system operation.

I. Check all gas line fittings for leaks.

Impinger II – Advantage Digital Express Service Manual - Domestic

BYPASS ORIFICE – REPLACEMENT

A. Shut off power at main breaker.

B. Shut off gas supply to the oven and disconnect the flexible gas line to oven.

C. Remove rear control box cover.

D. Disconnect bypass tube from gas valve.

E. Remove bypass orifice from gas valve.

F. Reassemble in reverse order and check system operation.

G. Check all gas line fittings for leaks.

MAIN BURNER ORIFICE – REPLACEMENT

A. Shut off power at main breaker.

B. Shut off gas supply to the oven and disconnect the flexible gas line to oven.

C. Remove rear control box cover.

D. Remove burner manifold. See “TEMPERATURE REGULATION VALVE”.

E. Remove main burner orifice from burner manifold.

F. Reassemble in reverse order and check system operation.

G. Check all gas line fittings for leaks.

REVERSING SWITCH – REPLACEMENT

A. Shut off power at main breaker.

B. Remove rear control box cover.

C. Remove wires from reversing switch and mark for reassembly.

D. Remove mounting nut and remove switch.

E. Reassemble in reverse order and check system operation.

CONVEYOR DRIVE MOTOR – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and both control box covers.

C. Disconnect all wiring from motor and mark for reassembly.

D. Remove coupling from motor drive shaft.

E. Remove four screws and remove conveyor motor and mounting bracket.

F. Remove mounting bracket from conveyor motor.

G. Reassemble in reverse order and check system operation.

REVERSING CONVEYOR DIRECTION

A. Shut off power at oven switch.

B. Set conveyor reversing switch in the other position.

C. Turn oven “on” and check for proper operation.

CAPACITOR, CONVEYOR DRIVE MOTOR – REPLACEMENT

A. Shut off power at main breaker.

B. Remove rear control box cover.

C. Discharge capacitor before removing wires. Mark wires for reassembly.

D. Remove mounting screw and remove capacitor.

E. Reassemble in reverse order and check system operation.

AIR PRESSURE SWITCH – REPLACEMENT

A. Shut off power at main breaker.

B. Remove conveyor and front control box cover.

C. Disconnect wiring from air pressure switch and mark for reassembly.

D. Disconnect air tube from air pressure switch.

E. Remove two mounting screws and remove air pressure switch.

F. Reassemble in reverse order and check system operation. Be sure to calibrate new air pressure

switch. For proper calibration, see below.

Impinger II – Advantage Digital Express Service Manual - Domestic

G. Turn adjusting screw on air pressure switch fully counter clockwise.

H. Turn oven “on”.

I. Turn adjusting screw on air pressure switch clockwise until heat shuts off.

J. Turn adjusting screw on air pressure switch counter clockwise ¼ turn.

K. Reassemble control panel top and front cover.

BEARING, CONVEYOR – REPLACEMENT

A. Remove conveyor from oven and place on a flat work surface.

B. Remove connecting links from conveyor belt. See Installation Operations manual for proper

procedure. Remove conveyor belt from conveyor.

C. Move drive shaft or idler shaft toward end of conveyor, and shaft with bearing will now slip out of

conveyor frame.

D. Remove bearing from conveyor shaft.

E. Reassemble in reverse order and check system operation.

MERCURY CONTACTOR – REPLACEMENT

A. Shut off power at main breaker.

B. Remove rear control box cover.

C. Disconnect all wires and mark for reassembly.

D. Remove screws from mounting bracket and remove contactor.

E. Reassemble in reverse order and check system operation.

HEATING ELEMENT – REPLACEMENT

A. Shut off power at main breaker.

B. Remove back cover.

C. Disconnect heating element wires and mark for reassembly.

D. Disconnect motor wiring and mark for reassembly.

E. Remove oven back from oven.

F. Remove fan shroud.

G. Heating element may now be unbolted and removed.

H. Check new heating element for proper voltage. Reassemble in reverse order and check for

proper operation.

Impinger II – Advantage Digital Express Service Manual - Domestic

GENERAL VIEW

IMPINGER II ADVANTAGE

MODEL

1116-080-A, 1116-080-A1, 1117-080-A, 1117-080-A1,

1130-080-A, 1130-080-A1, 1131-080-A, 1131-080-A1,

1132-080-A, 1132-080-A1, 1133-080-A, 1132-080-A1,

1130-08H-A, 1131-08H-A, 1132-08H-A, 1133-08H-A,

1161-080-A, 1162-080-A

LETTER

PART NUMBER

370412

DESCRIPTION

Cross support

Stand side

Caster, 4” w/threaded stem

Adjustable leg

Caster, 4” w/mounting plate

Oven door, See page 38/39

Bottom finger housing

370416

369231

369232

369390

370010

369502

369504

370487

369503

370486

370415

369659

370679

369225

369211

Bottom finger cover

Top finger housing (model ending with –080-A)

Top finger housing (model ending with –080-A1)

Top finger cover (model ending with –080-A)

Top finger cover (model ending with –080-A1)

Oven top

Conveyor hole cover (S/N 2052462 & Below)

Conveyor hole cover (S/N 2052463 & Above)

Baffle

Thumb screw

Columnating plate, see Installation & Operations

manual

Columnating plate, see Installation & Operations

manual

Impinger II – Advantage Digital Express Service Manual - Domestic

GENERAL VIEW

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX, FRONT

MODEL

1116-080-A, 1116-080-A1,

1117-080-A, 1117-080-A1

LETTER

PART NUMBER

369805

DESCRIPTION

Switch, on/off

Facia, pushbutton

Control board

370408

370417

370409

369531

369507

369124

Display (digital only)

Transformer, 24VAC

Thermostat, cooling fan

Cooling fan

369532

370410

369680

Ignition control

Stand off plate

Front cover assy.

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX, FRONT VIEW

MODEL

1116-080-A, 1116-080-A1,

1117-080-A, 1117-080-A1

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX, FRONT

MODEL

1130-080-A, 1130-080-A1, 1131-080-A, 1131-080-A1,

1132-080-A, 1132-080-A1, 1133-080-A, 1133-080-A1,

1130-08H-A, 1131-08H-A, 1132-08H-A, 1133-08H-A,

1161-080-A, 1162-080-A

LETTER

PART NUMBER

369680

369508

369432

370408

370417

370409

369427

369507

369124

369378

369523

369025

370410

DESCRIPTION

Front cover assy.

Timer, 20 minute

On/off switch

Facia, push button

Control board

Display

Transformer, control

Thermostat, cooling fan

Cooling fan

Cooling Fan 1132 – 1133-08H-A models only

Relay, oven start

Air pressure switch

Stand-off plate assy.

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX, FRONT VIEW

MODEL

1130-080-A, 1130-080-A1, 1131-080-A, 1131-080-A1,

1132-080-A, 1132-080-A1, 1133-080-A, 1133-080-A1,

1130-08H-A, 1131-08H-A, 1132-08H-A, 1133-08H-A,

1161-080-A, 1162-080-A

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX, REAR

MODEL

1116-080-A, 1116-080-A1,

1117-080-A, 1117-080-A1

LETTER

PART NUMBER

DESCRIPTION

369192

370378

370675

369901

369568

369938

369566

369524

369552

369398

370359

369366

369401

369556

369557

369263

357067

370376

370681

369129

370362

369682

369166

369331

369124

370364

369537

Capacitor

Conveyor motor assy. (S/N 2052462 & Below)

Conveyor motor assy. (S/N 2052463 & Above)

Burner manifold

Burner venturi, Nat. gas

Burner venturi, L.P. gas

Orifice, main, Nat. gas

Orifice, main, L.P. gas

Hot surface igniter

Valve, temperature regulation

Reversing switch, conveyor

Burner blower motor

Air shutter assy.

Orifice, bypass, Nat. gas

Orifice, bypass, L.P. gas

Gas valve, Nat./L.P.

Thermostat, oven cavity hi-limit

Capacitor, conveyor motor (S/N 2052462 & Below)

Capacitor, conveyor motor (S/N 2052463 & Above)

Fuse holder

Thermocouple, type ”K”

Control box cover, rear

Fuse, 10A.

Finger guard

Cooling Fan

Ground lug

Power cord

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX, REAR VIEW

MODEL

1116-080-A, 1116-080-A1,

1117-080-A, 1117-080-A1

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX REAR

MODEL

1130-080-A, 1130-080-A1, 1131-080-A, 1131-080-A1,

1132-080-A, 1132-080-A1, 1133-080-A, 1133-080-A1,

1130-08H-A, 1131-08H-A, 1132-08H-A, 1133-08H-A,

1161-080-A, 1162-080-A

LETTER

PART NUMBER

369192

369200

369124

369378

370362

369185

369187

369186

369188

370067

369479

370485

369682

357067

370359

370302

369129

370383

370382

370384

370676

369331

369166

370364

DESCRIPTION

Capacitor

Relay, main fan

Cooling Fan

Cooling Fan 1132 – 1133-08H-A models

Thermocouple, Type “K”

Terminal block section 1 Phase (2 required)

Terminal block section (3 required)

Terminal block end 1 Phase

Terminal block end 3 Phase

Mercury contactor 2 pole (1 Phase)

Mercury contactor 3 pole (3 Phase)

Mercury contactor 3 pole (3 Phase) – “08H-A” model only

Control box cover, rear

Thermostat, oven cavity hi-limit

Reversing switch, conveyor

Receptacle

Fuse holder

Capacitor, conveyor motor (S/N 2052462 & Below)

Capacitor, conveyor motor (S/N 2052463 & Above)

Conveyor motor (S/N 2052462 & Below)

Conveyor motor (S/N 2052463 & Above)

Finger guard

Fuse, 10A.

Ground lug

Impinger II – Advantage Digital Express Service Manual - Domestic

CONTROL BOX, REAR VIEW

MODEL

1130-080-A, 1130-080-A1, 1131-080-A, 1131-080-A1,

1132-080-A, 1132-080-A1, 1133-080-A, 1133-080-A1,

1130-08H-A, 1131-08H-A, 1132-08H-A, 1133-08H-A,

1161-080-A, 1162-080-A

Impinger II – Advantage Digital Express Service Manual - Domestic

OVEN BACK ASSEMBLY

LETTER

PART NUMBER DESCRIPTION

369182

369899

369655

Fan

Fan shroud

Stand off

Heating element

369183

369184

370648

370645

370690**

370689**

208 Volt

240 Volt

208 Volt – Models 1130-08H-A & 1132-08H-A (S/N 10062053640 & below)

240 Volt – Models 1131-08H-A & 1133-08H-A (S/N 10062053640 & below)

208 Volt – Models 1130-08H-A & 1132-08H-A (S/N 10062053641 & above)

240 Volt – Models 1131-08H-A & 1133-08H-A (S/N 10062053641 & above)

Not Shown

Oven Back Assembly

208 Volt – Models 1130-08H-A & 1132-08H-A

(to be used when replacing elements from S/N 10062053640 & below)

240 Volt – Models 1131-08H-A & 1133-08H-A

(to be used when replacing elements from S/N 10062053640 & below)

370687**

370688**

Rear wall

369976

369549

369581

Gas ovens

Electric ovens

Motor mount

Motor

369539

369181

369695

369033

369681

369979

369227

369541

Gas ovens (120VAC)

Electric ovens (208/240VAC)

Bracket, motor

Clamp, motor

Cover, back

Bracket, hi-limit

Spring

Bracket, thermocouple

** High wattage elements for models 1130-08H-A, 1131-08H-A, 1132-08H-A, and 1133-08H-A have been

redesigned – beginning with serial number 10062053641. As a result, service calls related to element

replacements for units with S/N 10062053640 & below will require the installation of a redesigned oven back

assembly. See Service Bulletin 2006-25-A for additional information concerning the redesigned elements.

Impinger II – Advantage Digital Express Service Manual - Domestic

OVEN BACK ASSEMBLY VIEW

Impinger II – Advantage Digital Express Service Manual - Domestic

CONVEYOR / DOOR

LETTER

PART NUMBER

DESCRIPTION

369190

370671

369512

369269

370116

Coupler (S/N 2052462 & below)

Coupler (S/N 2052463 & above)

Coupling center (S/N 2052462 & below)

Ball plunger (S/N 2052462 & below)

Set screw (S/N 2052462 & below)

Crumb pan, right S/N 2045452 & below

Crumb pan, right and left S/N 2045453 & above

Crumb pan, left S/N 2045452 & below

Conveyor frame assembly

Pan stop

Conveyor bearing

Idler shaft

Sprocket (includes set screw), Regular Conveyor

Set screw

Sprocket (includes set screw), Heavy-Duty Conveyor

Drive shaft (S/N 2052462 & below)

Drive shaft (S/N 2052463 & above)

Hinge

Door assembly

Impinger nameplate

Door latch & catch

Door assembly with window

Window frame, top

Glass, access window

Window frame, bottom

Retainer, window

Splice clip, conveyor belt

Conveyor belt (complete), Regular Conveyor

Conveyor belt (1-Foot section), Regular Conveyor

Conveyor Belt (complete), Heavy-Duty Conveyor

Conveyor Belt (1-Foot Section), Heavy-Duty Conveyor

Roll Pin

369223

369224

369666

369226

369516

369514

369515

369978

370509

369238

370678

369513

370413

370016

369501

370414

369927

369925

369926

369929

369165

369194

369394

370155

370157

369471

Not Shown

Impinger II – Advantage Digital Express Service Manual - Domestic

CONVEYOR / DOOR VIEW

Impinger II – Advantage Digital Express Service Manual - Domestic

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