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Page | 30 Proofer Operators Manual 1-2022 (English)

Retarder/Proofer control

Function settings

Function Short Name

Description

Factory

set point

Range

Temperature
Calibration

Increase the value to increase the display and lower the
actual temperature.

+25, -25

Humidity
Calibration

Increase the value to increase the display and lower the
actual humidity.

+25, -25

Temperature Lock

Limit the range of temperature variance shown in degrees.

0 - 9

Humidity Lock

Limit the range of humidity variance shown in degrees.

0 - 9

Heat PID range

Sets the range for PID control in degrees.

0 - 99

Proportion Factor

Sets the ratio of proportional off/on time to temperature
difference.

0 - 30

Heat cycle time

Sets the length of the PID cycle in seconds.

1 - 99

Humidity Cycle
time

Sets the length of time in seconds for each humidity cycle.

1 - 99

Humidity On time

Sets the "on" time in seconds for humidity in each cycle.

0 - 20

F10

Refrigeration Defer
time

Sets how long the control will delay the turning on of the
cooling system in minutes.

0.0

0.0 - 9.9

F11

Cooling Dead Band

Temperature difference between cooling off and cooling on.

2.0

0.0 - 9.9

F12

Heating Dead Band

Temperature difference between heating on and heating off.

0.5

0.0 - 9.9

F13

Not used

Set to 0.5

005

0 - 9

F14

Light on time

How long the light will be on in seconds. "0.0" = light will be
on indefinitely.

0.5

0.0 - 9.9

F15

Alarm on time

Determines how long the alarm will sound before it turns off,
in seconds. "0.0" means the alarm will stay on indefinitely.

0.0

0.0 - 9.9

F16

Defrost time

Length of the defrost time in minutes. "00" = no defrost.

0.0 - 9.9

F17

Defrost delay

Determines how long between starts of the defrost cycle in
hours. "00" = no defrost.

0.0 - 9.9

F18

Defrost
Temperature

Determines what temperature ends the defrost cycle, when
a thermistor is imbedded in the evaporator.

00 - 200

Summary of Contents for LRP

Page 1: ... Equipment Inc Tulalip WA Models LRP and LRPR Roll in Rack Proofer and Retarder Proofer Operator s Manual LBC Bakery Equipment Inc 6026 31st Ave NE Marysville WA 98271 USA Phone 888 RACKOVN 888 722 5686 Fax 425 642 8310 Email service lbcbakery com Website www lbcbakery com ...

Page 2: ...rating Rules 4 Warnings Cautions Dangers 7 Safety Procedures 8 Proofer Control Operation 9 Retarder Proofer Control Operation 11 Other Operating Precautions and Hints 15 Replacement Parts List 17 Schematics Wiring Diagrams 20 Proofer Control Set up and configurations 25 Retarder Proofer Control Set up and configurations 28 Limited Warranty 32 ...

Page 3: ...ed in a diligent manner It is the responsibility of the owner operator to insure proper training and diligence of any person coming into contact with either the subject units or the output product exhaust or otherwise of the subject units It is the responsibility of the owner operator to ensure that the subject units are installed and operated in accordance with OSHA Standard 1910 263 C A regular ...

Page 4: ...ess water to be evacuated from the work area Steam and hot water from the drain are very hot and will cause serious burns and loss of skin and hair and the use of limbs serious injury to eyes and internal organs Spills spillage and slipping Use caution to avoid slipping when operating this appliance or when around the appliance This appliance is intended to be connected to a sanitary air gap drain...

Page 5: ...s hot Do not close the appliance door while you or someone else is inside Do not allow anyone else to enter the appliance or close the door on themselves or anyone else Do not allow the door to be closed on anyone and allow anyone to block the door opening so that the person cannot exit Do not lock or block the door of the appliance with anyone inside or allow anyone else to lock the appliance wit...

Page 6: ...thorized servicer or electrician to correct the condition before operating the appliance Alert other employees and service personnel to the hazard Improper Operation Do not operate the appliance if covers doors or latches are removed Do not operate the appliance if any other person has applied a lock out on the electrical or has tagged the appliance in a way to suggest that the appliance not be us...

Page 7: ...E For best results always allow your proofer to reach set temperature and humidity before putting product in NOTICE For best results proof at lower temperatures rather than higher NOTICE To dry proof Set humidity to the lowest setting either 45 or less At this setting the humidity generator is turned off and will not produce humidity NOTICE When the actual humidity is less than 46 display will sho...

Page 8: ...RNING MOVING PARTS HAZARD FOLLOW LOCKOUT PROCEDURES BEFORE REMOVING AIR DUCT OR EVAPORATOR FAN GUARDS WARNING ELECTRICAL HAZARD BEHIND UPPER FRONT TRIM FOLLOW LOCKOUT PROCEDURES BEFORE SERVICING WARNING THE LBC BAKERY LRP SERIES PROOFER PRODUCES HUMIDITY WHICH WILL NATURALLY CONDENSE AND ACCUMULATE WATER ON THE INTERIOR FLOOR CAUSING IT TO BECOME SLIPPERY ADJACENT EXTERIOR FLOOR MAY ALSO BECOME SL...

Page 9: ...being used 1 Open Door Shut down If the loading door s are left open for an extended period the proofer control assumes that the operator is not using the proofer or has finished the shift The proofer will automatically shut down in the same manner as when the power button is pressed The length of time that the open door shut down will delay can be adjusted or can be turned off completely The reco...

Page 10: ...estions Temperature The optimal dough temperature is 70 to 80 degrees F To raise the temperature of the dough to 80 degrees the proofer should not be set to operate above 100F Humidity Humidity is injected into the proofer to prevent drying of the product The lower the proofing temperature the less humidity is needed Under normal circumstances the proper setting for humidity is 70 to 85 Timer sett...

Page 11: ...e automatic process or select the process you wish to run on the unit Selecting Manual Processes The retarder proofer can be operated manually in one of four modes The refrigerating modes are Hold and Retard Both modes will cause the retarder to maintain a cold setting The Hold mode is usually set to the colder setting usually at about 34 degrees F Hold is used to prevent defrosting of frozen prod...

Page 12: ... arrow buttons below the time display to adjust the temperature set point This temperature setting will only affect the process you have chosen 5 Press the Temperature button to return the downplay to the actual temperature Note When the process is selected and the temperature or humidity set point is shown the retarder proofer will heat or cool and humidify to these settings You do not need to st...

Page 13: ...nutes The Finish Time will be 08 00 The product will proof for 40 minutes so the Start Proof time will be 07 20 The product will need 90 minutes to rest rise in temperature to room temperature so the Start Rest time will be 05 50 The retarder proofer should be allowed 1 hour to cool down so the Start Retard time will be 16 00 The Hold Start time will be 15 00 To enter the start times 1 Press the T...

Page 14: ...he loading door s are left open for an extended period in the proofing mode only the control assumes that the operator is not using the unit or has finished the shift The retarder proofer will automatically shut down in the same manner as when power button is pressed The length of time that the open door shutdown will delay can be adjusted or can be turned off completely The recommended setting is...

Page 15: ... Having the proofer set to a temperature which is too high will cause higher temperatures on the outside of dough products while the inside is still trying to warm up This same affect happens to a full rack of product where the outside edges of the rack proof more than the inside Overloading a proofer or a rack can also promote uneven proofing The rack with product needs space around it for air to...

Page 16: ... on the un load side The timer does not need to be coordinated with a specific door or lane of racks Rather when a rack is put into the unit to proof any available timer can be started and when a timer reaches 00 and sounds the rack that is closest to the unload side is ready to remove 3 When multiple lanes of product are loaded into the proofer they should always be loaded simultaneously so that ...

Page 17: ...6 155 167 Copper Tube 10MM 7 N A 155 526 Mounting Cleat Upper LRP4 8 155 723 155 530 Drip Pan 9 N A 155 533 Filler Plate Assembly Spray Deflector 10 155 722 Spray Assembly 11 155 732 Spray Separator 12 12a 155 150 155 802 Element Cover Assembly Bumper 71100 12 13 155 161b 155 803 Element Base Assembly 14 14a 14b 155 303 155 151 155 804 Fan Cover Assembly Screen Cover Cover Fan 15 155 162 155 805 D...

Page 18: ... Relay 2 pole 30 Amp 24 VAC Coil 4 30901 02 Fuse Holder for 15A Fuse 5 30900 01 Fuse 15A ABC 15 6 31200 02 GROUNDING LUG 7 30500 07 Terminal Block 3 Pole 125 Amp 8 31400 26 XFMR 120 208 240 Primary 12 24 40VA 9 30700 76 Contactor 3 Pole 50A CU 32R 9a 30700 17 Contactor 3 Pole 50A M 98 10 31602 06 Lamp Socket Rack Proofer 10a 31603 04 1 250V 50W CFL Light Bulb 11 31602 06 1 Lamp Globe 12 70101 200 ...

Page 19: ...0200 42 30200 42 Fan Micro 5VDC 7 40106 05 40106 05 40106 05 40106 05 Temp Humidity Sensor 8 155 338 2 155 338 2 155 338 2 155 338 2 Plate Control Wireway 9 155 672 1 155 672 1 155 672 1 155 672 1 Wire Assembly 10 20109 51 20109 51 20109 51 20109 51 Screw Door Handle 11 71100 14 71100 19 71100 14 71100 14 Bumper Door 12 155 114 155 114 17 155 114 155 114 1 Bottom Seal 13 155 128 155 128 17 155 128...

Page 25: ...etting can be set to cause the control to alarm if it is slow to heat up This feature is more confusing to operators than helpful and should be set to 00 rT This setting is used to change the displayed temperature by offsetting it up or down This should be used only when compared to an accurate thermometer Example If the displayed temperature is 90F and an accurate temperature sensing device displ...

Page 26: ... humidity output will be on per humidity cycle Set it to 04 If the humidity is overshooting when loaded lower this to 02 oH This setting determines how high the humidity can overshoot before the alarm will sound This feature is more confusing to the operator than it is helpful and should be left at 00 dF This function is inactive Fl This function is inactive oL This setting turns on the output ala...

Page 27: ...8 TP Proportion Factor Sets the ratio of proportional on time to temperature difference 07 7 Tt Heat cycle time Sets the length of the PID cycle in seconds 00 00 Tc Temperature Cycle Rate This controls how often the temperature proportional output will turn on 15 15 Ac Humidity Cycle time Sets the length of time in seconds for each humidity cycle 32 16 32 Ao Humidity On time Sets the on time in se...

Page 28: ...grees from its current setting So if the offset is at 7 increasing the offset by 5 degrees will result in an offset of 2 F2 This setting is used to change the displayed humidity by offsetting it up or down This should be used only when compared to an accurate hygrometer Example If the displayed humidity is 90 and an accurate humidity sensing device displays 85 the offset can be decreased by 5 from...

Page 29: ...ser can set the temperature in any mode Set this to 105 for best results Note If the proofing temperature is too high there will be increased condensation in the proofer on the walls and ceiling F21 This setting determines the minimum set point of the retard and hold modes Set this to 32 for best results F22 This setting determines the scale of the temperature display When set to C the display wil...

Page 30: ...th of time in seconds for each humidity cycle 32 1 99 F9 Humidity On time Sets the on time in seconds for humidity in each cycle 04 0 20 F10 Refrigeration Defer time Sets how long the control will delay the turning on of the cooling system in minutes 0 0 0 0 9 9 F11 Cooling Dead Band Temperature difference between cooling off and cooling on 2 0 0 0 9 9 F12 Heating Dead Band Temperature difference ...

Page 31: ... set point Determines how low the user can set the temperature 34 0 32 F22 F C Determines the scale of the temperature display F F C F23 Unattended proofer delay Determines how long the proofer can continue to humidify without having the door opened in minutes 45 0 99 F24 Open Door turn off delay Determines how long the door can be left open in the proofing mode before the unit turns off in minute...

Page 32: ...e with the operating manual requirements can cause damage to internal components and will VOID the warranty Conditions cont All repair work is to be performed by an LBC authorized service agent Equipment must be at the operating location of the original purchaser user and shall not have been resold or reclaimed by another party LBC equipment is for commercial use only If sold as a component of ano...

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