Lincoln 1164-000-EA, 1155-000-EA, 1154-000-EA User Manual

SERVICE MANUAL

(INTERNATIONAL)

IMPINGER ADVANTAGE DIGITAL SERIES

MODEL 1154-000-EA, 1155-000-EA,

1164-000-EA

WITH PUSH BUTTON CONTROLS

Lincoln Foodservice Products, LLC

1111 North Hadley Road

Fort Wayne, Indiana 46804

United States of America

Phone : [phone]

U.S. Fax: [phone] • Int’l Fax: [phone]

Technical Service Hot Line

[phone]

www.lincolnfp.com

1100ExAdDig REV: 11/8/07

SEQUENCE OF OPERATIONS

IMPINGER II ADVANTAGE

SERIAL NUMBER 2038616 AND ABOVE

(OVENS WITH PUSH BUTTON CONTROLS)

MODEL 1154-000-EA NAT. GAS 230VAC 50 HZ. 1 PHASE
MODEL 1155-000-EA LP GAS 230VAC 50 HZ. 1 PHASE

POWER SUPPLY Electrical power to be supplied to the oven by a three conductor service.
CONTROL BOX AUTO
COOL DOWN

MAIN FAN CIRCUIT Power is permanently supplied, through a 10 amp oven fuse, through a normally

BURNER CIRCUIT Closing the oven fan switch supplies line voltage through the normally open gas

IGNITION CONTROL The ignition control switches line voltage to the combustion blower motor. The

TEMPERATURE CONTROL Closing the oven fan switch supplies line voltage to the primary of the control

CONVEYOR DRIVE Closing the oven fan switch supplies line voltage to the conveyor motor and to the

When the temperature in the control box reaches 120°F ± 3°F (48.9°C ± 1.7°C),
the cooling fan thermostat will switch power to the control box cooling fan. The
thermostat will interrupt power to the cooling fan when the control box temperature
falls to 100°F ± 3°F (37.8°C ± 1.7°C).

closed control box hi-limit thermostat (opens at 140°F, 60°C), to the normally open
double pole oven fan switch and to the cooling fan. Closing the oven fan switch
supplies line voltage to the main fan motor. Closing the main fan switch also
supplies voltage to the cooling fan, the primary of the control transformer, the
conveyor motor, and the burner system.

pressure switch (located in the gas valve and closed when gas pressure is
present), through the normally open air pressure switch (closed by the air pressure
from the main fan), through the normally closed oven cavity hi-limit thermostat
(opens at 662°F, 350°C), and to the ignition control.

combustion air pressure switch swit ches from normally closed to normally open
upon sensing air pressure in the burner housing. After a pre-purge period of
between 30 and 60 seconds, the spark generator is energized, the main gas valve
and the burner pilot light are energized, and ignition should now occur.

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 line voltage to the
temperature regulation valve at intermittent intervals to maintain the desired
temperature. The display on the oven control will indicate when the temperature
regulation valve is energized.
NOTE: The display also indicates oven temperature.

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.

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Impinger II – Advantage Digital Service Manual - International

SEQUENCE OF OPERATIONS

IMPINGER II ADVANTAGE

SERIAL NUMBER 2038616 AND ABOVE

(OVENS WITH PUSH BUTTON CONTROLS)

MODEL 1164-000-EA 400/230VAC 50HZ. 3 PHASE

POWER SUPPLY Electrical power to be supplied to the oven by a four conductor service.

Brown conductor is hot.
Black conductor is hot.
Black conductor is hot.
Green conductor is ground.

MAIN FAN CIRCUIT Power is permanently supplied, through the 10 amp oven fuse, through the

normally closed control box hi-limit thermostat (opens at 140°F, 60°C), to the
normally open oven fan switch. Power is also supplied to the normally open
cooling fan thermostat. Closing the oven fan switch supplies line voltage to the
main fan motor, the cooling fan, the primary of the control transformer and to
the oven control.

HEAT CIRCUIT Closing the oven fan switch supplies line voltage, through the normally open air

pressure switch (closed by air pressure from the main fan) to the oven control.
Line voltage is also supplied 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 line voltage to the coil of the contactor at intermittent
intervals to maintain the desired temperature. The display on the oven control will
indicate when the contactor is energized.
NOTE: The display also indicates oven temperature.

CONVEYOR CONTROL Closing the oven fan switch supplies line voltage 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.

Impinger II – Advantage Digital Service Manual - International

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SCHEMATIC DIAGRAM

MODEL 1154-000-EA, 1155-000-EA

SERIAL NUMBER 2038616 TO 2045407

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Impinger II – Advantage Digital Service Manual - International

SCHEMATIC DIAGRAM

MODEL 1154-000-EA, 1155-000-EA

SERIAL NUMBER 2045408 AND ABOVE

Impinger II – Advantage Digital Service Manual - International

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SCHEMATIC DIAGRAM

MODEL 1164-000-EA

SERIAL NUMBER 2038616 AND ABOVE

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Impinger II – Advantage Digital Service Manual - International

SCHEMATIC DIAGRAM

MODEL 1164-000-EA

SERIAL NUMBER 2053336 AND ABOVE (RoHS Compliant)

Impinger II – Advantage Digital Service Manual - International

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TROUBLESHOOTING GUIDE

IMPINGER II ADVANTAGE

SERIAL NUMBER 2038616 AND ABOVE

(OVENS WITH PUSH BUTTON CONTROLS)

MODEL 1154-000-EA NAT. GAS 230VAC 50 HZ. 1 PHASE
MODEL 1155-000-EA LP GAS 230VAC 50 HZ. 1 PHASE

REFER TO PROPER SCHEMATIC FOR IDENTIFIED COMPONENTS

SYMPTOM POSSIBLE CAUSE EVALUATION
Oven fan will not run Incoming power supply Check breaker, 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 Check, replace if necessary.
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 fan With power off, check continuity between switch

terminals. Replace as needed.
Motor, main fan Check for opens, shorts or grounds. With power off, turn

fan blade to check for locked rotor.
Capacitor Check for shorts or grounds.

WARNING: Capacitor has a stored charge, discharge

before testing.
No control box cooling Incoming power supply Check breaker, reset if required. Check power plug to

be sure it is firmly in receptacle. Measure incoming

power, call power co. if needed.
Switch, main fan With power off, check continuity between switch

terminals. Replace as needed.
Cooling fan Line voltage should now be at the cooling fan. If voltage

is present, check motor for opens, shorts or grounds.

With power off, check for locked rotor.
No automatic control
box cooling

Cooling fan thermostat Check the cooling fan thermostat (thermostat closes at

Cooling fan Line voltage should now be at the cooling fan. If voltage

Oven will not heat
Serial Number
2045407 & Below
Main fan If not operating, refer to “Oven fan will not run”.
Gas pressure switch This switch is located inside the gas valve and should

Incoming power supply Check breaker, reset if required. Check power plug to

be sure it is firmly in receptacle. Measure incoming

power, call power co. if needed.

120°F and opens at 100°F). With the cooling fan

thermostat pre-heated, check for continuity. If

thermostat is open, replace cooling fan thermostat.

is present, check motor for opens, shorts or grounds.

With power off, check for locked rotor.

Gas supply Check for adequate gas supply and be sure that the

manual gas shut off valve is open. Also check flexible

gas line connection.

close when gas pressure is present.

WITH POWER OFF: Remove 3 prong plug (on gas

valve) and measure continuity between terminals 2 and

3. If no continuity, check the following: Proper gas

pressure supply to gas valve as marked on the oven

specification plate. Check for proper adjustment of the

gas pressure switch, 10 for Nat. gas, 27 for LP gas or

4.5 for town gas. Check the filter in gas valve for

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Impinger II – Advantage Digital Service Manual - International

blockage or damage. If above checks are okay, but

pressure switch is still not closed, replace gas valve.
Air pressure switch Check air switch terminals for supply voltage to

terminals NO2 and COM. If voltage is present on one

side only, check for air tube blockage or misalignment.

If these are okay, adjust air pressure switch or replace

if necessary.
Oven cavity hi-limit thermostat

Terminals are normally closed, opens at 660°F (350°C).

If open, reset and test oven for proper operation. If

thermostat will not hold for maximum oven temperature,

and oven is not exceeding control setting, check for

proper location of capillary bulb in its spring holder. If

above checks are okay, replace hi-limit thermostat.
Ignition control Check for proper supply voltage to ignition control.

Check for proper voltage to the burner blower motor.

This can be checked at motor connecting plug

terminals 2 and 5. If voltage is present, proceed with

next step, if not, wait 30 seconds, push reset button

and try to restart. If this fails, check wires from

thermostat and burner blower motor to the ignition

control. If the above checks okay, replace ignition

control.
Burner blower motor Check for supply voltage to motor. WITH POWER OFF:

Turn blower wheel to check for locked rotor. If supply

voltage is present at motor connecting plug terminals 2

and 5, and motor does not run, replace burner blower

motor.
Air pressure switch

(burner blower)

Check for proper supply voltage switching from “NC” to

“NO” on ignition control. Check for air pressure switch

adjustment, air tube blockage or misalignment. If these

adjustments fail, replace air pressure switch.
Spark generator A pre-purge time of 30 to 60 seconds occurs after

burner blower motor starts. Check for supply voltage at

spark generator. If voltage is not present, check reset

button for ignition control. If voltage is still not present,

replace ignition control. If there is input voltage to the

spark generator, but there is no high voltage output,

replace the spark generator.
Igniter/sensor assembly Check this assembly for visible damage. Replace as

needed. If there is no visible damage, check for voltage

supply to igniter/sensor assembly. If there is voltage

supplied to the igniter/sensor, but there is no spark,

replace igniter/sensor assembly.
Gas valve Gas valve should open when proper supply voltage is

present. If there is no voltage present, check reset

button on ignition control, and all connections for

tightness. If there is still no voltage to gas valve,

replace the ignition control. If there is voltage to the gas

valve, check for gas pressure at the gas pressure tap

(located in the gas piping just prior to the burner). If

there is no gas pressure, replace the gas valve.
Flame will not stay on Flame sensor To check for flame sensor operation, connect a digital

multimeter (capable of measuring DC microamps)

between the flame sensor wire and terminal #1 on the

ignition control. Sensor current is to be 3 microamps,

minimum. If these readings are not achieved, replace

igniter/sensor assembly. Also check for any type of

damage to flame sensor wire and connections.

NOTE: The DC microamp test must be conducted with

the oven in low flame (bypass) operation.

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Power supply Set the temperature to the lowest temperature setting.

If there is sufficient microamp current, but the flame will

not stay lit, check for proper polarity of the power

supply.
Ignition control If there is sufficient microamp current, and there is

proper polarity of the power supply, but the burner will

not stay lit, check the reset button on the ignition

control. If the above test is okay, replace the ignition

control.
Oven will not heat
Serial Number
2045408 & Above

Gas supply Check for adequate gas supply and be sure that the

manual gas shut off valve is open. Also check flexible

gas line connection.
Main fan If not operating, refer to “Oven fan will not run”.
Air pressure switch Check air switch terminals for supply voltage to

terminals C and NO. If voltage is present on one side

only, check for air tube blockage or misalignment. If

these are okay, adjust air pressure switch or replace if

necessary.
Oven cavity hi-limit thermostat

Terminals are normally closed, opens at 350°C (660°F).

If open, reset and test oven for proper operation. If

thermostat will not hold for maximum oven temperature,

and oven is not exceeding control setting, check for

proper location of capillary bulb in its spring holder. If

above checks are okay, replace hi-limit thermostat.
Ignition control Check for proper supply voltage to ignition control.

Check for proper voltage to the burner blower motor.

This can be checked at motor connecting plug terminal

5 and Neutral. If voltage is present, proceed with next

step, if not, wait 30 seconds, push reset button and try

to restart. If this fails, check wires from burner blower

motor to the ignition control. If the above checks okay,

replace ignition control.
Burner blower motor Check for supply voltage to motor. WITH POWER OFF:

Turn blower wheel to check for locked rotor. If supply

voltage is present at motor connecting plug terminal 5

and Neutral, and motor does not run, replace burner

blower motor.
Air pressure switch

(burner blower)

Check for proper supply voltage switching from “NC” to

“NO” on ignition control. Check for air pressure switch

adjustment, air tube blockage or misalignment. If these

adjustments fail, replace air pressure switch.
Ignition control A pre-purge time of 30 to 60 seconds occurs after

burner blower motor starts. Check for high voltage

spark output from the ignition control. If there is no high

voltage spark output, check reset button for ignition

control. If there is still no high voltage output, replace

the ignition control.
Igniter/sensor assembly Check this assembly for visible damage. Replace as

needed. If there is no visible damage, check for voltage

supply to igniter/sensor assembly. If there is voltage

supplied to the igniter/sensor, but there is no spark,

replace igniter/sensor assembly.
Gas valve Gas valve should open as the ignition control generates

the high voltage spark. Place manometer on the

pressure tap fitting (located in the gas piping just prior

to the burner manifold) and check for gas pressure. If

valve does not open, check reset button on ignition

control, and all connections for tightness. If there is still

no gas pressure, remove the ignition control from the

gas valve. Check the coils of the gas valve for opens or

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Impinger II – Advantage Digital Service Manual - International