FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.

Transcription

1 LBC Bakery Equipment Co th St. South West Suite C Everett, WA Part # Phone: Fax: Rev. B Copyright 2002

2 THE INFORMATION IN THIS MANUAL IS CRUCIAL AND MUST BE RETAINED FOR FUTURE REFERENCE. READ, UNDERSTAND, AND FOLLOW THE INSTRUCTIONS AND WARNINGS CONTAINED IN THIS MANUAL. DANGER POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH. WARNING CAUTION NOTICE POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY. POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR OR MODERATE INJURY. Helpful operation and installation instructions and tips are present. FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT. Model #: Serial #: Date Purchased: Purchase Order #: Purchased From: Location: Date Installed: For Service, Call: LBC Bakery Equipment Co th St. South West Suite C Everett, WA Part # Phone: Fax: Rev. B Copyright 2002

3 TABLE OF CONTENTS CHAPTER PAGE TABLE OF CONTENTS... 3 READ FIRST... 4 SAFETY PROCEDURES... 6 EQUIPMENT DESCRIPTION... 7 GENERAL DESCRIPTION... 8 GENERAL OPERATION... 9 GENERAL MAINTENANCE ASSEMBLY WIRING DIAGRAMS PARTS LIST LRPR RETARDER MANUAL LRPR RETARDER MANUAL TABLE OF CONTENTS LRPR RETARDER INSTALLATION LRPR RETARDER PARTS LIST LRPR RETARDER WIRING DIAGRAM WARRANTY... 65

4 IMPORTANT READ FIRST IMPORTANT WARNING WARNING WARNING NOTICE DANGER NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE CAUTION MOVING PARTS HAZARD. FOLLOW LOCKOUT PROCEDURES BEFORE REMOVING AIR DUCT OR EVAPORATOR FAN GUARDS ELECTRICAL HAZARD BEHIND UPPER FRONT TRIM. FOLLOW LOCKOUT PROCEDURES BEFORE SERVICING. 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 SLIPPERY. USE EXTREME CAUTION WHEN WALKING IN OR AROUND THIS APPLIANCE. This picture shows an LRP1, LRP2, and LRP3. The LRP1 and some LRP2 models have only one climitizer. Larger models have two climitizers. DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. For best results, always allow your proofer to reach set temperature and humidity before putting product in. For best results, proof at lower temperatures rather than higher. 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. When the actual humidity is less than 46% display will show 45. When the actual humidity is higher than 45%, display will show the actual humidity. Service on this or any other LBC BAKERY equipment must be performed by qualified personnel only. Consult your authorized service agency directory or call the factory at or go to for the service agent nearest you. The LRP1 has hinges mounted on the right jamb only. THIS APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES, OR IN THE ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL CODE, ANSI/NFPA ETL File E Rev. B2006

5 IMPORTANT READ FIRST IMPORTANT CAUTION WARNING FOR INSTALLATION IN CANADA THE INSTALLATION MUST BE IN ACCORDANCE WITH CAN/CGA-B149.1&2 OF THE INSTALLATION CODE, AND LOCAL CODES WHERE APPLICABLE. ALL ELECTRIC WIRING MUST BE IN ACCORDANCE WITH THE CURRENT CANADIAN ELECTRICAL CODE, C22.1 PART 1. GROUNDING THIS APPLIANCE MUST CONFORM TO CANADIAN ELECTRICAL CODE, CSA C22.2. INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING. IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND /OR DAMAGE TO EQUIMENT. UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICAL CODES ETL File E Rev. B2006

6 SAFETY PROCEDURES WARNING WARNING WARNING MOVING PARTS HAZARD. FOLLOW LOCKOUT PROCEDURES BEFORE REMOVING AIR DUCT OR EVAPORATOR FAN GUARDS ELECTRICAL HAZARD BEHIND UPPER FRONT TRIM. FOLLOW LOCKOUT PROCEDURES BEFORE SERVICING. 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 SLIPPERY. USE EXTREME CAUTION WHEN WALKING IN OR AROUND THIS APPLIANCE. Lockout Procedure 1. Announce lockout to other personnel. 2. Turn both heat and control power off at main panel. 3. Clear unit of all personnel. 4. Test lockout by turning power switch on and observing if control panel displays or fan(s) come on. Check heater circuit with voltmeter. 5. Perform necessary repairs or tests. 6. Clear unit of personnel before restarting. 7. Turn power on at main panel. 8. Announce unit is on to other personnel. Safety Precautions LBC Bakery Equipment hereby disclaims any and all responsibility for injury, damage, loss or other claim that may occur to person or property from improper alteration, modification, addition, operation, maintenance or service, whether it be mechanical, electrical, fuel, operator, motor or otherwise, which may occur from such improper alteration, modification, addition, operation, maintenance or service to this piece of equipment. Safety Considerations Your LBC Bakery LRP Proofer is manufactured to rigid standards. This equipment is E.T.L. listed and meets safety and sanitation standards. The presence of safety equipment control and interlocks on an appliance and attendant components of installation cannot, in and of themselves, assure absolute safety of operation. Diligent, capable, well trained operators and maintenance personnel, as well as proper programs of operation and maintenance, are essential to the safe and reliable operation of this appliance. A. The responsibility of the manufacturer is to supply suitable, comprehensive instructions and recommendations for the operation and maintenance of the appliance. B. Trained, qualified and factory-authorized personnel must perform all operation, maintenance and repair of these appliances. It is the responsibility of the owner / operator to ensure that this happens. C. A regular periodic program of cleaning, inspection and maintenance must be established and comprehensive maintenance records maintained. It is the sole responsibility of the user to establish, schedule and enforce the frequency and scope of these programs in keeping with recommended practice and with due consideration given to actual operating conditions. D. The appliance must be operated within limits which will not exceed the working limits of any component within the appliance as a whole. ETL File E Rev. B2006

7 EQUIPMENT DESCRIPTION Exterior LRP1 The Proofer exterior dimensions are 38.4 (97.5 cm) wide x 91.5 (232.5 cm) high x a depth dependent upon model number [39.3 (100 cm) to (328.5cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRP2 The Proofer exterior dimensions are 78.8 (200 cm) wide x 91.5 (232.5 cm) high x a depth dependent upon model number [39.3 (100 cm) to (328.5cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRP3 The Proofer exterior dimensions are (260 cm) wide x 91.5 (232.5 cm) high x a depth dependent upon model number [39.3 (100 cm) to (328.5cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. All Units Modular design allows for a wide variety of sizes. The proofer door is constructed of stainless steel and comes with both single and double doors. Interior LRP1 The Proofer interior dimensions are 33.1 (84 cm) wide x 74.1 (188.1 cm) high x a depth dependent upon model number [22.1 (56 cm) to (284.7 cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRP2 The Proofer interior dimensions are 68.1 (173 cm) wide x 74.1 ( cm) high x a depth dependent upon model number [27.1 (68.8 cm) to (297.4 cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRP3 The Proofer interior dimensions are 91.8 (233cm) wide x 74.1 ( cm) high x a depth dependent upon model number [27.1 (68.8 cm) to (297.4 cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. All Units Floor level loading. Cabinet Rigid, formed stainless steel panels filled with polyurethane foam insulation re-joined with cam-locks and sealed with gaskets to form a strong, energy-efficient, tight and sanitary enclosure. Doors The welded stainless steel door is polyurethane foam-filled. Door bumpers on the inside protect the finish. Controls The microprocessor-based digital controls are mounted for ease in the door. In some models power and light switches are located above the door. Digital read-out with solid-state temperature sensing and controls. Air-Duct(s) Each proofer comes with one or two air ducts. These air ducts perform the tasks of heating, humidifying, and circulating the air within the unit. Each duct contains a heater plate, spray nozzle, drain pan, and fan. ETL File E Rev. B2006

8 GENERAL DESCRIPTION Theory of Operation The LBC Bakery Proofer is a controlled atmosphere chamber. Temperature and humidity can be set independently to meet your particular proofing needs. In Proof mode air temperature is increased as the air duct heater is energized. Humidity is increased as water is sprayed in the air duct. Air is circulated continuously to provide positive movement from bottom to top, creating a uniform distribution of warm, humid air. Proofer Theory NOTICE This picture shows an LRP2. The LRP1 has only one door and the air duct heater is mounted on the back wall. ETL File E Rev. B2006

9 GENERAL OPERATION DANGER NOTICE NOTICE NOTICE NOTICE DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. For best results, always allow your proofer to reach set temperature and humidity before putting product in. For best results, proof at lower temperatures rather than higher. 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. When the actual humidity is less than 46% display will show 45. When the actual humidity is higher than 45%, display will show the actual humidity. See Programming Manual for Operation Instructions! ETL File E Rev. B2006

10 GENERAL MAINTENANCE WARNING NOTICE 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 SLIPPERY. USE EXTREME CAUTION WHEN WALKING IN OR AROUND THIS APPLIANCE. Service on this or any other LBC BAKERY equipment must be performed by qualified personnel only. Consult your authorized service agency directory or call the factory at or go to for the service agency nearest you. Every Day Clean interior and exterior of proofer. See Equipment Cleaning under manuals tab. Every Six Months Have factory authorized service personnel check proofer for proper temperature readings. Also inspect air duct drain, heater plate, spray nozzle for proper operation and mineral deposits; de-scale as needed. As Needed Clean interior and exterior walls and replace light bulb or any other components as needed. Specifications Temperature, humidity, and timer setting ranges: Thaw: Proof: Timers: Power: Water Consumption: F (18-66 C) 50-95% Relative Humidity F (18-46 C) 50-95% Relative Humidity 0-99 Hours and 0-99 Minutes Varies depending on model and size (See data plate located on the underside of the valence for the specific ratings or contact the factory for the information needed if the data plate is not legible)..73 gallons per hour average per air duct (2 ducts 30 PSI gallons per hour average per air duct (2 ducts 80 PSI. Unit will use about 4 gallons per hour when powered on until humidity levels reach set point. Technical Data Part # Ohms Elements Ω Solenoid Valve Ω Contactor Ω Relay Ω Transformer V primary 75 Ω, 208V primary 64 Ω, 24V secondary 1 Ω Blue to Black Red to Black Yellow to Yellow (no red stripe) ETL File E Rev. B2006

11 ASSEMBLY NOTE: ON UNITS WITH FLOOR ONLY! Place floor onto prepared surface and mark position. Take into consideration drain location. Countersunk sides of holes go up. Note: Tile that may come loose over time should be removed. Place floor adhesive onto floor and spread with provided trowel. Seal bottom with a good continuous bead along edge before setting into final resting position. Apply weight to floor while adhesive sets. Note: Row of 3/8 holes is front of floor. Countersunk sides of holes go up. Drill holes with rotary drill and install anchors in front row (and middle row if applicable). Drill 10MM diameter hole 1 ½ deep and remove all dust from hole. Do not drill too deep. Install anchor with provided insert tool. Note: If concrete subfloor has additional layer of softer leveling slag and anchors do not hold, a longer anchor bolt may be necessary. Do not install anchors at edges or corners at this time. One good blow is better then many small taps when installing anchors. ETL File E Rev. B2006

12 ASSEMBLY CONT D Note: Units without Stainless Floor start here. Side Chanel Rear Base Channel Place wall base channels as pictured. Outside dimensions should match Specification Sheet. Mark outside edge with non permanent marker. Side Chanel Each proofer is supplied with enough track to install a 120 deep proofer. Holes in side channel indicate cutting points for base channels. Cut side channels short enough to leave front corners exposed. You may need both channel pieces depending on the size of the proofer. No base channel on door side of proofer. Optional: Seal base channels with small amount of silicone to stop leaks from developing at bottom of unit. Press base channel to floor. Note: Recheck dimensions to insure wall panels fit into track. Once silicone dries, base channels are hard to move. See Spec. Sheet. See wall panel location Chart 1 for panel placement. ETL File E Rev. B2006

13 ASSEMBLY CONT D Chart 1, Panel locations Ceiling Panels should match side wall panels. Example: On a LRP2-30 you should have 1 20 ceiling and 2 20 wall panels Bumper for Climitizer and 20 Panels Bumper for 30 Panels Bumper for 3 hole doors Bumper for 4 hole doors ETL File E Rev. B2006

14 ASSEMBLY CONT D Place header assembly on floor upside down. Note: When installing Panel Assemblies inspect to insure gasket material is installed along all edges. Gasket on all three sides Header panel requires gasket material as shown. If gasket is missing moisture will migrate into panel sections. All three sides pictured have grey gasket material installed. Note: When locking a cam it may be necessary to first rotate cam all the way back until a positive click is heard. This will ready the cam for locking. DO NOT OVER TIGHTEN! Over tightening will damage the cam. Once the cam is reset it will not click again until you attempt to lock the cam into its receiver, or onto a screwdriver shaft. If cam will not reset or lock, lubricate cam with WD-40 or equivalent and work cam open and closed until it resets and locks. If front corners have two screws installed, remove two screws from each front corner panel top. These screws will later be reused to secure the valance. Screw in top of front corner ETL File E Rev. B2006

15 ASSEMBLY CONT D Install Front Corner panel and tighten cams. Note: Do not over tighten. A positive click should be felt when cam is locked. If cam will not click into locked position do not over tighten. Lube cam and work until cam locks. See note on previous page. Flip front assembly over. Reinstall screw in top of each front corner panel securing valance. Shim Part # Note: Check sides for gasket material on all sides! Install one left and one right side to front. Place front with side panels into base track, then plumb front corners. To plumb place level on front as pictured in center photo. Cams may need to be repositioned to achieve plumb. Shim (Part # ) front to achieve level, left to right only. Shims, pictured below level, are provided with unit. See Chart 1 on page 13 for correct panel placements. Continue to add side panels 90º in relation to ground. Keep the front plumb and level. Shim sides as needed. Allow top of panels to be uneven if necessary to maintain to maintain 90 º angles from ground. Drain holes on back corners go to bottom back of unit. ETL File E Rev. B2006

16 ASSEMBLY CONT D Align front as necessary, then mark rear base channel position. Remove rear corners. Drain hole always goes to bottom, back Note: Drain holes on back corners go to bottom back as pictured. Drill holes with rotary drill and install anchors in rear base channel. Drill 10MM diameter hole 1 ½ deep and remove all dust from hole. Do not drill too deep. Install anchor with provided insert tool. Note: If concrete subfloor has additional layer of softer leveling slag and anchors do not hold, a longer anchor bolts may be necessary. Install remaining panel assemblies maintaining 90º angles. ETL File E Rev. B2006

17 ASSEMBLY CONT D Note: Make sure all hinge mounting screws are tight. Hinge Washer Hang door(s). Use a 30 x 1 x 4 board (as shown) or a dolly to lift door and move into position. Make sure both hinges seat and hinge washers are present. On model # LRP-2 sensor will come preinstalled inside header. On all models push connector end through hole in door and connect to control as pictured. Plug temperature / humidity sensor into board with flat side of connector up as pictured. Temp/Humidity Sensor flat side up Plug connectors from control panel into connectors from door. Verify wire # s on both sides of connector correspond. Check to assure all wires in connecter seat tightly together. Screw control panel into door using supplied screws. Bend tabs as necessary to align with center set of holes. Bezel may need to be bent slightly to create tight fit to panel. Install bezel as shown using supplied screws. Optional: A small bead of silicone around bezel will seal bezel. ETL File E Rev. B2006

18 ASSEMBLY CONT D Install door, handles and bumpers onto door(s). Install conduit mounting brackets and gaskets onto valance and door. To maximize airflow over sensor install sensor 2-3 inches in front of climatizer fan. If more than one climatizer is utilized install sensor in front of climatizer closest to controller. Leave a small amount of slack in cable at sensor end. Route cable towards hinge side of door and install supplied cable retention clips keeping slack out of cable. Install supplied cable retention clips to door and inside corner of proofer with door open all the way and no slack in cable. Push remaining cable into door Silicone opening after sensor is installed Seal opening in the door with silicone. ETL File E Rev. B2006

19 ASSEMBLY CONT D Note: Inspect ceiling panels for gasket material on bottom. Install ceiling panels flush with sides. Align back corners and install one screw. Recheck door alignment and plumb of front. Shim front with part # as needed to obtain plumb. Align ceiling panels flush with side and install remaining 3 hex head ceiling screws. Peel all vinyl from inside unit. Fill cam holes with caulk and install plugs. Check for gaps and caulk header to top seam and all other openings. Note: If unit is a pass through leave out 2 upper corner plugs in corner without climitizer; instead, install stiffener plate Part # in corners without climatizer installed. Stiffener plate should join corner and header and be secured with supplied stainless steel hardware. ETL File E Rev. B2006

20 ASSEMBLY CONT D Jam Trim anchor bracket Install left and right jam trim, and anchor bracket to unit. Drill and tap bracket mounting holes. Shim if needed with Secure only with Stainless Steel screws provided. Anchor brackets to floor; see page 16 for anchor instructions. Caulk base channels to floor inside and out. Install rear corners behind base molding. Cut to fit and install base trim over corners. Drill trim mounting holes with provided drill bit. Lube holes and tap with provided tap. Secure with provided Stainless Steel machine screws. Install top trim part # using provided screws. Do not over tighten. ETL File E Rev. B2006

21 ASSEMBLY CONT D Apply caulk to backside of high limit mounting bracket and install high limit and bracket. Gasket must be installed On LRP1 and LRP2 models Install 250V light bulb, gasket, and globe. New LRP3 models will have Florescent Lamps pre-installed. Note: If 120V bulbs are installed fuses will blow. Remove fan guard, cover, and water line from air duct assembly. Determine duct location. Single Door Proofers - Back wall tight to left side. Double Door Proofers - Left side wall tight to front. Double Duct Proofers - Mount first duct on left side wall tight to front. Mount second duct on same side tight to back. LRP3 Models Ducts can be mounted on left or right side determine by drain location. Remove climatizer mounting screws from applicable corner. ETL File E Rev. B2006

22 NOTE: Hold Climatizer as tight to top as possible when drilling holes to prevent gap at top causing uneven proofing! ASSEMBLY CONT D LIFT Hold duct in position using 17 ½ chalk block to support weight while holding tight to side and top. Shim chalk block as necessary to align left side mounting holes. CAUTION! Hold duct in place tight to top until all mounting screws are inserted. Right side holes are pre-threaded; insert top two screws. Bottom left screw may need to be remarked, drilled, and tapped as pictured on right Drill and tap duct right hand mounting holes with drill bit and tap provided. Secure with provided Stainless Steel machine screws in 6 places. Route wires through black bushing in ceiling. Note: Protect your wires. Make sure wires are away from moving parts and plastic bushings are installed into header. Insert water supply line, ferrule, and nut through ceiling.. LRP1 Models Only Install water line pointing towards rear of proofer. Make sure water line is long enough to reach back of unit. ETL File E Rev. B2006

23 ASSEMBLY CONT D Install 90º fitting to water line pointing down into unit. Install climatizer water line into 90º fitting; this water line ships with climatizer and has a 90º bend that points into nozzle assembly. Install water line into nozzle assembly. Reinstall covers onto climitizer. Note: Silicone all water line and electrical holes leading into proofer. LRP2 Models Only Install climatizer water line into 90º fitting; this water line ships with climatizer and has a 90º bend that points into nozzle assembly. See above step; install water line into nozzle assembly. ETL File E Rev. B2006

24 ASSEMBLY CONT D LRP2 with 2 Climatizers Only Cut climatizer water line below ferrule and nut, leaving room on short piece to add T fitting as pictured below. This may be necessary on some LRP3 models also. Install T fitting as pictured with 90º facing rear climatizer assembly. Install water line pointing towards rear of proofer. Make sure water line is long enough to reach back of unit. Go to top of page 22. Install line to climatizer. ETL File E Rev. B2006

25 ASSEMBLY CONT D LRP with 2 Climatizers Only If climatizers are to be mounted on right hand side remove pictured fan jumper wires and relocate jumper to right hand side of additional harness mounted inside header. This harness is only used when climatizers are mounted on the right. It brings power from the left side of the header to the right side of the header. Connect wires 10 and 16 disconected from fan jumper wires to left side of this additional harness. Wires 10 and 16 Pass Through Models Only. Install rear light jumper harness to front header as pictured. Pass Through Models Only. Connect light jumper wires at front header to wires 10 and 16 and to rear header ballast. Pass Through Models Only. Use self drilling screws to attach harness to rear header as pictured. Pass Through Models Only. Install Angle Bumper to protect Climatizer assembly from racks using supplied stainless sheet metal screws. ETL File E Rev. B2006

26 ASSEMBLY CONT D LRP3 Models Install 2 water lines as pictured. Shape one water line to rear climatizer and one water line to front climatizer. Install 90º fitting to water line pointing down into unit. Install climatizer water line into 90º fitting; this water line ships with climatizer and has a 90º bend that points into nozzle assembly. Note: After wiring elements and plumbing, silicone all wire and plumbing access holes to top of proofer. Install water line into nozzle assembly. Reinstall covers onto climitizer. Note: After wiring elements and plumbing, silicone all water line and electrical holes leading into proofer. ETL File E Rev. B2006

27 Silicone openings after wiring and plumbing are complete. ASSEMBLY CONT D Detail B Silicone openings For Model LRP3 With right hand climatizers only. Additional harness is mounted inside header to bring power from contactors and wires 10 and 16 (fan power wires) to right side of header.. All connections at rear are made at terminal block as drawn in above Detail B. Push all wires through Front Electrical Cover into header. All front conections made at terminal block inside header as drawn above in Detail A. ETL File E Rev. B2006

28 ASSEMBLY CONT D Step 11 Wire Cover channel installation for heat boxes Caulk wires into the hole in the ceiling panel to form a vapor barrier. If only one heat box is present, no conduit or relay connection box is necessary Illustration 11 On LRP1 cover will go tight to front over element wires. ETL File E Rev. B2006

29 ASSEMBLY CONT D CAUTION CAUTION WARNING THIS APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES, OR IN THE ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL CODE, ANSI/NFPA FOR INSTALLATION IN CANADA THE INSTALLATION MUST BE IN ACCORDANCE WITH CAN/CGA-B149.1&2 OF THE INSTALLATION CODE, AND LOCAL CODES WHERE APPLICABLE. ALL ELECTRIC WIRING MUST BE IN ACCORDANCE WITH THE CURRENT CANADIAN ELECTRICAL CODE, C22.1 PART 1. GROUNDING THIS APPLIANCE MUST CONFORM TO CANADIAN ELECTRICAL CODE, CSA C22.2. INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBIN IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND /OR DAMAGE TO EQUIMENT. UNIT MUST BE INSTALLED N ACCORDANCE WITH ALL APPLICAL CODES Electrical Connection Electrical connection can be made through a 3/4 knockout in the back of the valence. A three pole terminal block has been provided on the component assembly for power connection. Please refer to wiring diagram for phasing. MODEL VOLTS kw PER PHASE AMPS PER LINE 3 PHASE TOTAL L1-L2 L2-L3 L1-L3 L1 L2 L3 1 PHASE LRP1-40; to LRP MODEL VOLTS kw PER PHASE AMPS PER LINE 3 PHASE TOTAL L1-L2 L2-L3 L1-L3 L1 L2 L3 1 PHASE LRP2-30; to LRP *LRP2-90; to LRP MODEL VOLTS kw PER PHASE AMPS PER LINE 3 PHASE 1 TOTAL L1-L2 L2-L3 L1-L3 L1 L2 L3 PHASE LRP3-30; to LRP *LRP3-90; to LRP ETL File E Rev. B2006

30 Water Connection Incoming water connection is made at a ½ NPT Fitting provided at the top of the unit behind the valance. ASSEMBLY CONT D Water Connection ½ NPT Fitting. Apply thread seal and connect supplied ½ NPT to 5/8 OD compression connector to drip pan assembly at bottom of climatizer. Install 5/8 OD Drain Line (not supplied) at compression fitting. Drain must be vented for proper drainage. NOTE: LRPR Retarder Proofer evaporator drain(s) will be supplied (PVC) and tie into Climatizer drain line. Drain Bumper Bumpers Drain Bumper Temporarily install drain bumpers, mark mounting holes. Remove drain bumper, drill mounting holes with provided drill bit. Lube holes and tap with provided tap. Secure with provided Stainless Steel machine screws. Note: White Nylon Bumper Guard not needed on wall above drain bumper. White Nylon Bumper (not installed above Drain Bumper) Install White Bumpers on climatizer(s) and remaining sides of proofer with provided Stainless Steel screws. Do not install above Drain Bumper. ETL File E Rev. B2006

31 Single Phasing LRP1 Models Only See wiring diagram for models LRP2 and LRP3 ASSEMBLY CONT D 208/240V single phase Ground Renumber to 4, 5, and 6, if needed ETL File E Rev. B2006

32 Single Phasing LRP1 Models Only See wiring diagram Pg 33 for models LRP2 and LRP3 ASSEMBLY CONT D Reposition wires as pictured. Elements should be numbered 1,2,3,4,5 and 6 (See wire diagram) and hooked up to match wire numbers on terminal block. Terminal Block should be numbered 1,2,3,4,5 and 6. ETL File E Rev. B2006

33 WIRING DIAGRAM On LRP2 and LRP3 make power connections as shown here. On LRP1 models see connection instructions page 31 and bottom of wire diagram. Single Phase LRP2 & LRP3 connect odd # wires to L1 and even # wires to L2 on load side of terminal block. Exception: wire 13 to L2 LRP1 Models On single phase LRP1 models only; Connect power supply to L1 and L3 of terminal block and all element leads to match wire # s on terminal block. See page 31 for further instructions. ETL File E Rev. B2006

34 WIRING DIAGRAM FU1 TB TERMINAL BLOCK SW1 TOGGLE SWITCH (MAIN POWER) SW2 TOGGLE SWITCH (INTERIOR LAMP) IL INTERIOR LAMP XF TRANSFORMER CB CIRCUIT BOARD BZ BUZZER HS HUMIDITY SENSOR TS TEMPERATURE SENSOR SV SOLENOID VALVE (STEAM) MR MECHANICAL RELAY (HEAT) HE HEATING ELEMENT FU FUSE HL HIGH LIMIT FU2 THREE PHASE CONNECTION TB1 L1 L2 L3 SINGLE PHASE CONNECTION TB1 L1 L2 L3 1,4 2,5 3,6 1,3,5 2,4,6 WIRE NUMBERS SW2-1 SW2-2 IL1 SW1-1 SW1-2 FAN 1 FAN 2 (Optional) XF1 208/240 VAC 24 VAC Pin 1 Pin 2 Pin 3 Pin 4 sv1 CB1 View From Rear of Board Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 12 BZ1 GND HL1 MR1 Pin 13 Pin 14 Pin 15 Pin 16 HS1 Pin 17 Pin 18 TS1 TB2-1 HE1 TB TB2-5 HE2 TB2-6 MR1 MR1 HE4 (Optional) HE5 (Optional) 4 TB2-4 4 HE3 3 TB2-3 3 MR1 HE6 (Optional) Models LRP With Serial Numbers Beginning With A- Only ETL File E Rev. B2006

35 PARTS LIST Item No. Qty. Part No. Description PCB Board Obsolete; use part # Kit, LRP L LRP S Pictured Control Board With Serial # s beginning in Below S- only Buzzer Assembly Not Shown Channel Timer Board Not Shown Control Board with out 4 channel timer With Serial # s beginning in S- only Not Shown Control Board complete with 4 channel timer With Serial # s beginning in S- only Pictured Below Temp/Humidity Sensor for all S- Serial # s Pictured. Use on S- serial # s. Comes with Temp/Humidity Combination Sensor Part # , always replace Sensor when replacing control board. ETL File E Rev. B2006

36 PARTS LIST CONT D Item Qty. Part No. Description * Relay, 24-Volt Coil Not shown Terminal Block, 3-Pole Contactor, 3-Pole 2 on S-serial # s Over temperature thermostat Fuse, 15 Amp Solenoid Valve Manual Valve Snap Bushing, Fuse Holder Transformer / Terminal Strip, 6-Pole Not on S- serial # s ETL File E Rev. B2006

37 PARTS LIST CONT D Bumper for Climitizer and 20 Panels Bumper for 30 Panels Bumper for 3 hole doors Bumper for 4 hole doors 11 ETL File E8138 Item No. Part No. Description Motor, 208/240-Volt Element, 240-Volt Nozzle Assembly Nozzle Orifice Blower Fan Assembly Door Latch Assembly (2 piece, Door and Body) Door, Bottom Sweeper, LRP3 only 7a Door, Bottom Sweeper, LRP1 & LRP2 only Door Gasket Grey Silicone, LRP2 & LRP3. 8a Door Magnetic Gasket, A- Serial # only 8b Door Magnetic Gasket, S- Serial # only Door Handle 3 hole LRP1 & LRP2 only Door Magnetic Gasket, LRP1& LRP2 A- Serial # only 10a Door Magnetic Gasket, LRP1& LRP2 S- Serial # only 10b Door Magnetic Gasket, LRP3 A- Serial # only 10c Door Magnetic Gasket, LRP3 S- Serial # only Drip Tray Assembly 37 Rev. B2006

38 PARTS LIST CONT D Item No. Qty. Part No. Description LRP Temperature Sensor Not used on S- serial # s Hygrometer Not used on S- serial # s Temp/Hygrometer sensor S- serial # s only Sensor Seal Plate Not used on S- serial # s Hygrometer Safety Cover Not used on S- serial # s V 50W Light Bulb Do Not Use 120V Household bulb Door Latch Lamp Socket 7A Globe Not Shown BALLAST PROOFER V LRP3 models Not Shown BULB FLOUR 3'COOL WHT 25W 120V LRP3 models ETL File E Rev. A 2001

39 The following manual is only applicable if you have a Proofer/Retarder, model # LRPR1, LRPR2 or LRPR3. Parts for proofer portion of retarder are listed in LRP Manual. Parts for retarder portion are listed in LRPR Manual. Proofer model numbers are LRP1, LRP2, and LRP3. Proofer/Retarder model numbers are LRPR1, LRPR2 and LRPR3. Contact factory if you have Notice: The retarder is equipped with a refrigeration system which is designed and sized to operate in a room of normal temperatures and with the product load normally processed in this size of unit. It should not be installed next to an oven or other appliance where heat from the oven will transfer to the inside of the retarder/proofer. Do not install this appliance closer than 4 inches (100mm) from an LBC rack oven. Notes ETL File E Rev. A 2001

40 ETL File E Rev. A 2001

41 THE INFORMATION IN THIS MANUAL IS CRUCIAL AND MUST BE RETAINED FOR FUTURE REFERENCE. READ, UNDERSTAND AND FOLLOW THE INSTRUCTIONS AND WARNINGS CONTAINED IN THIS MANUAL. DANGER POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH. WARNING CAUTION NOTICE POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY. POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR OR MODERATE INJURY. Helpful operation and installation instructions and tips are present. FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT. Model #: Serial #: Date Purchased: Purchase Order #: Purchased From: Location: Date Installed: For Service, Call: ETL File E Rev. A 2001

42 TABLE OF CONTENTS CHAPTER PAGE COVER PAGE CRUCIAL INFORMATION TABLE OF CONTENTS READ FIRST SAFETY PROCEDURES EQUIPMENT DESCRIPTION CLEANING, SPECIFICATIONS REFRIGERATION WORKING PRINCIPLE INSTALLATION OF REFRIGERATION COMPONENTS LOCATING EVAPORATOR REFRIGERION SYSTEM ELECTRICAL CONNECTION DIAGRAM ELECTRICAL SPECIFICATIONS LBC SUPPLIED CONDENSING UNIT SPECIFICATIONS AND PART # S REFRIGERATION PARTS LIST LRPR WIRING DIAGRAM WARRANTY ETL File E Rev. A 2001

43 IMPORTANT READ FIRST IMPORTANT WARNING WARNING WARNING DANGER NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE WARNING MOVING PARTS HAZARD. FOLLOW LOCKOUT PROCEDURES BEFORE REMOVING AIR DUCT OR EVAPORATOR FAN GUARDS ELECTRICAL HAZARD BEHIND UPPER FRONT TRIM. FOLLOW LOCKOUT PROCEDURES BEFORE SERVICING. THE LBC BAKERY LRPR SERIES PROOFER / RETARDER PRODUCES HUMIDITY WHICH WILL NATURALLY CONDENSE AND ACCUMULATE WATER ON THE INTERIOR FLOOR CAUSING IT TO BECOME SLIPPERY. ADJACENT EXTERIOR FLOOR MAY ALSO BECOME SLIPPERY. USE EXTREME CAUTION WHEN WALKING IN OR AROUND THIS APPLIANCE. DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. For best results, always allow your proofer to reach set temperature and humidity before putting product in. For best results, proof at lower temperatures rather than higher. 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. When the actual humidity is less than 46% display will show 45. When the actual humidity is higher than 45%, display will show the actual humidity. The Retard mode will operate without using the timer if continuous retarding is desired. The Proof mode will operate without using the timer if continuous proofing is desired. Service on this or any other LBC BAKERY equipment must be performed by qualified personnel only. Consult your authorized service agency directory or call the factory at or go to for the service agent nearest you. The LRPR1 has hinges mounted on the right jamb only. A qualified & licensed refrigeration mechanic must perform connection, evaluation & charging of refrigeration lines. The condenser unit, if supplied, is recharged, but additional refrigerant may be required. For units needing more than one piece of trim to span one side, join the two pieces by overlapping with the ceiling trim cap. TO REDUCE THE RISK OF FIRE, THE APPLIANCE IS TO BE MOUNTED ON FLOORS OF NON-COMBUSTIBLE CONSTRUCTION WITH NON- COMBUSTIBLE FLOORING AND SURFACE FINISH AND WITH NO COMBUSTIBLE MATERIAL AGAINST THE UNDERSIDE THEREOF, OR ON NON-COMBUSTIBLE SLABS OR ARCHES HAVING NO COMBUSTIBLE MATERIAL AGAINST THE UNDERSIDE THEREOF. SUCH CONSTRUCTION SHALL IN ALL CASES EXTEND NOT LESS THAN 12 INCHES BEYOND THE EQUIPMENT ON ALL SIDES. ETL File E Rev. A 2001

44 IMPORTANT READ FIRST IMPORTANT CAUTION CAUTION WARNING THIS APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES, OR IN THE ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL CODE, ANSI/NFPA FOR INSTALLATION IN CANADA THE INSTALLATION MUST BE IN ACCORDANCE WITH CAN/CGA-B149.1&2 OF THE INSTALLATION CODE, AND LOCAL CODES WHERE APPLICABLE. ALL ELECTRIC WIRING MUST BE IN ACCORDANCE WITH THE CURRENT CANADIAN ELECTRICAL CODE, C22.1 PART 1. GROUNDING THIS APPLIANCE MUST CONFORM TO CANADIAN ELECTRICAL CODE, CSA C22.2. INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL AND /OR DAMAGE TO EQUIMENT. UNIT MUST BE INSTALLED IN ACCORDANCE WITH ALL APPLICAL CODES WARNING WARNING WARNING MOVING PARTS HAZARD. FOLLOW LOCKOUT PROCEDURES BEFORE REMOVING AIR DUCT OR EVAPORATOR FAN GUARDS ELECTRICAL HAZARD BEHIND UPPER FRONT TRIM. FOLLOW LOCKOUT PROCEDURES BEFORE SERVICING. THE LBC BAKERY LRPR SERIES PROOFER / RETARDER PRODUCES HUMIDITY WHICH WILL NATURALLY CONDENSE AND ACCUMULATE WATER ON THE INTERIOR FLOOR CAUSING IT TO BECOME SLIPPERY. ADJACENT EXTERIOR FLOOR MAY ALSO BECOME SLIPPERY. USE EXTREME CAUTION WHEN WALKING IN OR AROUND THIS APPLIANCE. Lang Bakery Equipment Co Merrill Creek Parkway Everett, WA Rev. # A2005 Phone: Fax: Copyright 2002

45 LOCKOUT PROCEDURE Lockout Procedure 9. Announce lockout to other personnel. 10. Turn both heat and control power off at main panel. 11. Clear unit of all personnel. 12. Test lockout by turning power switch on and observing if control panel displays or fan(s) come on. Check heater circuit with voltmeter. 13. Perform necessary repairs or tests. 14. Clear unit of personnel before restarting. 15. Turn power on at main panel. 16. Announce unit is on to other personnel. Safety Precautions LBC Bakery Equipment Inc. hereby disclaims any and all responsibility for injury, damage, loss or other claim that may occur to person or property from improper alteration, modification, addition, operation, maintenance or service, whether it be mechanical, electrical, fuel, operator, motor or otherwise, which may occur from such improper alteration, modification, addition, operation, maintenance or service to this piece of equipment. Safety Considerations You re LBC Bakery LRPR Proofer / Retarder is manufactured to rigid standards. This equipment is E.T.L. listed and meets safety and sanitation standards. The presence of safety equipment control and interlocks on an appliance and attendant components of installation cannot in and of themselves, assure absolute safety of operation. Diligent, capable, well trained operators and maintenance personnel, as well as proper programs of operation and maintenance, are essential to the safe and reliable operation of this appliance. E. The responsibility of the manufacturer is to supply suitable, comprehensive instructions and recommendations for the operation and maintenance of the appliance. F. Trained qualified and factory-authorized personnel must perform all operation, maintenance and repair of these appliances. It is the responsibility of the owner / operator to ensure that this happens. G. A regular periodic program of cleaning, inspection and maintenance must be established and comprehensive maintenance records maintained. It is the sole responsibility of the user to establish, schedule and enforce the frequency and scope of these programs in keeping with recommended practice and with due consideration given to actual operating conditions. H. The appliance must be operated within the limits, which will not exceed the working limits of any component within the appliance as a whole. 45

46 EQUIPMENT DESCRIPTION Exterior LRPR1 The Proofer / Retarder exterior dimensions are 38.4 (97.5 cm) wide x 91.5 (232.5 cm) high x a depth dependent upon model number [39.3 (100 cm) to (328.5cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRPR2 The Proofer / Retarder exterior dimensions are 78.8 (200 cm) wide x 91.5 (232.5 cm) high x a depth dependent upon model number [39.3 (100 cm) to (328.5cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRPR3 The Proofer / Retarder exterior dimensions are (260 cm) wide x 91.5 (232.5 cm) high x a depth dependent upon model number [39.3 (100 cm) to (328.5cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. All Units Modular design allows for a wide variety of sizes. The Proofer / Retarder door is constructed of stainless steel and comes with both single and double doors. Interior LRPR1 The Proofer / Retarder interior dimensions are 33.1 (84 cm) wide x 74.1 ( cm) high x a depth dependent upon model number [22.1 (56 cm) to (284.7 cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRPR2 The Proofer / Retarder interior dimensions are 68.1 (173 cm) wide x 74.1 ( cm) high x a depth dependent upon model number [27.1 (68.8 cm) to (297.4 cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. LRPR3 The Proofer / Retarder interior dimensions are 91.8 (173 cm) wide x 74.1 ( cm) high x a depth dependent upon model number [27.1 (68.8 cm) to (297.4 cm)]. The Top, Front, Back, and Sides are constructed of stainless steel. All Units Floor level loading. 46

47 EQUIPMENT DESCRIPTION CONT D Air-Duct(s) Each Proofer / Retarder comes with one or two air ducts. These air ducts perform the tasks of heating, humidifying and circulating the air within the unit. Each duct contains a heater plate, spray nozzle, drain pan and fan. Evaporator(s) Each Proofer / Retarder comes with one or two evaporators. These evaporators perform the task of cooling the interior of the unit, while maintaining a relatively high level of humidity. The evaporators, manufactured by Russell, consist of refrigeration coils, a thermal expansion valve, and a fan. Condensing Unit The condensing unit may or may not be provided with the system. Customers may choose to run off of a remote refrigeration system. If used, the condensing unit consists of a compressor, a fan, a receiver, a line drier and a solenoid valve. If the condensing unit is not used, the solenoid valve will still be provided to control unit cooling. 47

48 CLEANING & SPECIFICATIONS WARNING NOTICE Every Day THE LBC BAKERY LRP SERIES PROOFER / RETARDER PRODUCES HUMIDITY WHICH WILL NATURALLY CONDENSE AND ACCUMULATE WATER ON THE INTERIOR FLOOR CAUSING IT TO BECOME SLIPPERY. ADJACENT EXTERIOR FLOOR MAY ALSO BECOME SLIPPERY. USE EXTREME CAUTION WHEN WALKING IN OR AROUND THIS APPLIANCE. Service on this or any other LBC BAKERY equipment must be performed by qualified personnel only. Consult your authorized service agency directory or call the factory at or go to for the service agent nearest you. Clean interior and exterior of Proofer / Retarder. Every Six Months Have factory authorized service personnel check Proofer / Retarder for proper temperature readings, air duct, drain, heater plate, spray nozzle. As Needed Clean interior and exterior walls and replace light bulb or any other components as needed. Specifications Temperature, humidity, and timer setting ranges: Thaw: F (21-49 C) 50-95% Relative Humidity Proof : F (21-49 C) 50-95% Relative Humidity Retard: F (1-7 C) No Humidity Hold: F (1-7 C) No Humidity Water:.73 gallons per hour maximum per air duct, (2 ducts 30 PSI. 1 gallon per hour maximum per air duct, (2 ducts 60 PSI 1.70 gallons per hour maximum per air duct, (2 ducts 80 PSI. Electrical: See Specification Sheet or LRP installation manual for electrical specifications. Control wires from proofer are supplied for valve; however, compressor power feed is not included in specifications. Drain: Tee into proofer drain. See installation instructions. 48

49 WORKING PRINCIPLE NOTICE A qualified & licensed refrigeration mechanic must perform connection, evaluation & charging of refrigeration lines. The condenser unit, if supplied, is charged, but additional refrigerant may be required. 49

50 Instructions for Installer: 10 Steps INSTALLATION Note: Assemble the proofer per the LRP installation instructions provided. Step 1: Remove the evaporator(s) from the shipping container. Remove the cover with the fan installed and inspect the evaporator, noting any dents or loose screws. Repair as needed. Inspect the evaporator tubing for holes leaks or unsoldered joints. (It is easier to do this inspection before you mount the evaporators.) Step 2: Refer to the table page 49 for the correct location of the evaporator in the cabinet. Note: A 12 minimum air gap to front wall is necessary for good circulation of air before temp probe. See Table: Evaporator Locations. Hold the evaporator (less the cover) against the ceiling and mark the location of the 4 mounting holes. Drill these holes with a ¼ drill through the ceiling. Mount the evaporator(s) with the ¼ x 3 stainless steel screws, washers, lock washers and nuts provided. Locate the approximate location of the fan connection inside the evaporator(s). Drill a 3/8 hole through the evaporator(s) and through the ceiling at this location. Install the 3/8 plastic busing in these holes to protect the electrical wires. Qualified Installer 50

51 INSTALLATION Qualified Installer 51

52 INSTALLATION Step 3: Locate the flexible electrical conduit and connectors provided with the retarder kit. Install one connector in the available conduit hole in the back of the header assembly. Locate (do not attach at this time) the ventilated electrical connection box over the 3/8 diameter hole(s) in ceiling with the bushing(s) installed. Install conduit connectors in these boxes. Note: If there are two evaporators provided, a box will need to be installed over each electrical connection hole. Stretch the electrical conduit from the header to the first box. Cut conduit to size and install between header and first box. Repeat this procedure between the first and second box if applicable. Locate the liquid line solenoid valve provided with the retarder kit and install a conduit connector. Stretch a reasonable length of conduit (approximately 48 ) from the last connection box to the liquid line solenoid valve. Connect conduit between the last box and the liquid line solenoid valve. See Fig: Wire covers and conduit installation for evaporator and condenser on next page. Step 4: Feed the evaporator fan wires through the ceiling and onto the top of the retarder/proofer. Be sure that these wires are secured in the evaporator so that normal servicing will not put tension on any wire going through the ceiling. Feed the 18 gauge wire provided through the conduit and connect to wires 16 and 18 in the header. Connect one wire from each evaporator fan and one wire from the liquid line solenoid to wire 16 in each electrical box cover. Connect wire 18 to the other evaporator fan wire in each connection box and at the liquid line solenoid. See drawing # on page 51. Note: Evaporator fans and the liquid line solenoid will both function at the same time. Qualified Installer Step 5: Screw both ends of the electrical connection boxes to the ceiling. Reinstall the cover on the liquid line solenoid connection box. Reinstall the cover on the header. See Fig: Wire covers and conduit installation for evaporator and condenser on next page. 52

53 INSTALLATION Qualified Installer Fig: Wire covers and conduit installation for evaporator and condenser. 53

54 54 INSTALLATION

55 INSTALLATION Step 6: Units with local condensing unit only: Place the condensing unit on top of the retarder proofer. Locate the condenser so that the refrigeration lines will easily connect with the evaporator inside the retarder/proofer. Be sure that there is ample space around the condenser to allow airflow at temperatures less than 90º F. Allow adequate space for air discharge to prevent air discharge from recycling through the fan. Anchor the condenser to the top of the retarder/proofer through the mounting holes in the base. Qualified Installer 55

56 INSTALLATION Step 7: Collect the expansion valve(s), liquid line dryer, pressure switch (if provided; check parts list), and this manual. Please have them available for the refrigeration technician. Note: The refrigeration system must be assembled, tested, charged and certified by a certified refrigeration technician. Have electrician hook up power. Please partner with the electrician to make sure he has information in this manual necessary to hook up power to proofer/retarder and compressor. Note: The electrical connections must be made by a certified electrician. Step 8: Hook up drain. Note: Install union at evaporator to allow for servicing. Install Union Qualified Installer Install Union Install Union 56

57 INSTALLATION Step 9: Before the refrigeration system is connected and charged, check electrical power, water and drain to the retarder/proofer. Turn on the retarder proofer and operate in normal operation (see proofer installation instructions and installation start-up and training check list). Turn on the Hold or Retard functions and verify the following: Both evaporator fans operate while the retarder is cooling. The liquid line solenoid valve is activated when the retarder is cooling. Both the evaporator fans and the liquid line solenoid turn off when the retard temperature is set above the actual temperature. Turn on the Proof or Rest functions and verify the following: The climitizer fan turns on and stays on after the first call for heat. The evaporator fan turns off when the climitizer fan turns on. Qualified Installer Have refrigeration technician hook up refrigeration system. Step 10: Set the control clock to the correct day and time. Refer to the retarder control operating manual for set-up and operation instructions. Be sure to arrange for training the operator on programming and use. 57

58 INSTALLATION Instructions for Electrician: 2 Steps Step 1: Hook up power to LRPR. Electrical connection can be made through a 3/4 knockout in the back of the valence. A three pole terminal block has been provided on the component assembly for power connection. Please refer to wiring diagram for phasing. Note: Condenser requires separate power connection. LRPR Electrical Specifications do not include condenser. See Table: Condensing Unit Electrical Specifications on next page. Model Volts kw per phase Amps Per Line 3 Phase Total L1 L2 L3 L1 L2 L3 1 Phase LRPR1-40 to LRPR LRPR2-30 to LRPR LRPR2-90 to LRPR LRPR3-30 to LRPR LRPR3-90 to LRPR Table: LRPR Electrical Specifications. Certified Electrician See wiring Diagram on Page 30 for further info if needed. Step 2: Hook up power to condensing unit See Drawing on page 51. Separate electrical supply is necessary for condensing unit. See Condensing Unit Electrical Specifications Table on next page. 58

59 INSTALLATION LBC Part Number Part Number RATINGS Max Fuse Size Certification Liquid (Flare) Suction (Flare) Charge in pounds Rating, 90 Deg F Ambient to 35 Deg F evaporator (Tons) CMR036H CMR050H CFR056M CFR078M CFL106M CFL126M CFL150M CFL200M44 1/3hp, Single Phase 208/240V, 5.8 MCA 1/2hp, Single Phase 208/240V, 6.7MCA Heavy1/2 hp, Single Phase 208/230V, 60 Hz, 8.1 MCA 3/4 hp, Single Phase 208/230V, 60 Hz, 8.8 MCA 1 hp, Single Phase 208/230V, 60 Hz, 12.5 MCA 1-1/4 hp, Single Phase 208/230V, 60 Hz, 14.9 MCA 1-1/2 hp, Single Phase 208/230V, 60 Hz, 15.8 MCA 2 hp, Single Phase 208/230V, 60 Hz, 16.5 MCA Table: Condensing Unit Electrical Specifications 15 A UR 1/4 3/8 3.3 # 3980 (.25) 15 A UL 1/4 3/8 3.7 # 5220 (.36) 15 A UL 1/4 5/8 4.3 # (.46) 15 A UL 3/8 5/8 7.2 # 8280 (.58) 20 A UL 3/8 7/8 7.9 # (.75) 20 A UL 3/8 7/ # (1.0) 20 A UL 3/8 7/ # (1.0) 20 A UL 3/8 7/ # (1.5) Certified Electrician Certified Refrigeration Technician

60 INSTALLATION Instructions for assembling, inspecting, charging and testing the refrigeration system: Must be completed by certified refrigeration technician. 5 Steps: Verify that the retarder proofer is assembled and that the evaporator is installed per the first half of these instructions. Unless otherwise noted or requested, this retarder/proofer is designed for use with R404a refrigerant. Throughout assembly and inspection, reasonably accepted practices should be used in conjunction with the refrigeration system. If you have any questions or concerns please contact LBC Bakery Equipment Inc. or the local supplier of the provided components. Units with local condensing unit: See Table: Condensing Unit Electrical Specifications on previous page for condensing unit specifications Step 1: Condensers rates at ½ hp and less need a pressure switch to control the condenser motors. If not previously installed, install switch in the suction line Schrader valve and connect the wires to the condenser electrical box per the condenser manufacturer s schematic. Condensers equipped with adjustable pressure switches should be set at approximately 50 PSIG cut-in and 30 PSIG cut-out for a low minimum system temperature of 20 degrees F. See Drawing No: on page 51. Certified Refrigeration Technician 60

61 INSTALLATION Note: The condenser is pre-charged with refrigerant ample for the condenser. Additional refrigerant will need to be added once the refrigeration piping is installed, tested and evacuated. Step 2: Connect electrical power to the condenser per the condenser manufacturer s instructions. Note: the condenser requires a separate power supply from the retarder/proofer circuit. Instructions for all retarder/proofers Step 3: Piping: Refrigeration components are thoroughly cleaned and capped by the manufacturer of the component. Take care to keep these sealed and as free as possible from moisture. Step 4: Install the expansion valve in the evaporator(s) in a position that will allow for adjustment of the evaporator superheat. Verify that the expansion valve is the correct size for the evaporator load (see parts list). Install the sensing bulb in accordance with the instructions provided with the expansion valve(s). Secure the capillary line so that it can not be damaged while servicing the evaporator. Notes to refrigeration technician Connect liquid line using copper tubing sized to match the solenoid valve provided. If two evaporators are provided reduce line size to ¼ at the tee connection on the top of the unit. Insulate the return suction line to provide compressor cooling. Be sure that the resulting compressor superheat is between 25º and 40º F. Adjust expansion valve to obtain 8º to 10º F of evaporator superheat. Obtain the superheat by measuring the discharge temps at the TXV and the evaporator. Certified Refrigeration Technician 61

62 PARTS Model # Kit # Part # Qty. Part Nomenclature Description / Kit Title Control, LRPR "S" Type All Retarder Proofers All LRPR Relay Harness, LRPR All Retarder Proofers Models Relay 24VAC 2 pole All Retarder Proofers Drain Kit, LRPR All Retarder Proofers LRPR1-40 LRPR1-50 LRPR1-60 LRPR1-70 LRPR2-30 LRPR1-40HO LRPR1-50HO LRPR1-80 LRPR1-90 LRPR1-100 LRPR1-110 LRPR2-40 LRPR2-50 LRPR1-120 LRPR1-60HO LRPR1-70HO LRPR2-60 LRPR1-80HO LRPR1-90CHO LRPR2-30HO LRPR2-40HO LRPR2-70 LRPR2-80 LRPR2-90 LRPR3-60 LRPR3-70 LRPR Kit includes parts below Kit Evaporator, A Evaporator Coil.21 Ton, 2,500 BTU Expansion Valve.25 Ton Switch, Pressure Suction Line Low Pressure Switch Solenoid Valve ¼ Dia Dryer, Line ¼ Dia Coil MCK /240V Coil M4FH-0025-IAA-201 1/4HP, R404A, 115V HT Condenser Not included in kit Kit includes parts below Kit Evaporator B Evaporator Coil.29 Ton 3,500 BTU Expansion Valve.50 Ton Switch, Pressure Suction Line Low Pressure Switch Solenoid Valve ¼ Dia Dryer, Line ¼ Dia Coil MCK /240V Coil M4FH-A036-IAV-201 1/3HP, R404A, 230V Condenser Not included in kit Kit includes parts below Kit Evaporator, C Evaporator Coil.38 Ton 4,500 BTU Expansion Valve.50 Ton Switch, Pressure Suction Line Low Pressure Switch Solenoid Valve ¼ Dia Dryer, Line ¼ Dia Coil MCK /240V Coil M4FH-0050-CAV-201 1/2 HP, R404A, 230V Condenser Not included in kit Kit includes parts below Kit Evaporator, D Evaporator Coil.46 Ton, 5,500 BTU Expansion Valve.50 Ton Switch, Pressure Suction Line Low Pressure Switch Solenoid Valve ¼ Dia Dryer, Line ¼ Dia Coil MCK /240V Coil FJAF-A056-IAV-201 1/2HP, R404A, 230V Condenser Not included in kit 62

63 PARTS Model # Kit # Part # Qty Part Nomenclature Description / Kit Title LRPR1-100HO LRPR1-110HO LRPR2-100 LRPR2-50HO LRPR2-60HO LRPR3-30HO LRPR1-120HO LRPR2-110 LRPR2-120 LRPR2-70HO LRPR3-40HO LRPR3-50HO LRPR2-80HO LRPR2-90HO LRPR3-60HO LRPR3-70HO LRPR2-120HO LRPR3-110HO LRPR3-120HO LRPR2-100HO LRPR2-110HO LRPR3-80HO LRPR3-90HO LRPR3-100HO Kit includes parts below Kit Evaporator, E Evaporator Coil.29 Ton, 3,500 BTU Expansion Valve.25 Ton 1 Suction Line Low Switch, Pressure Pressure Switch Solenoid Valve 3/8 Dia Dryer, Line 3/8 Dia Coil MCK /240V Coil FJAF-B078-CAV-001 3/4HP, R404A, 230V Condenser Not included in kit Kit includes parts below Kit Evaporator, F Evaporator Coil.38 Ton, 4,500 BTU Expansion Valve.50 Ton Solenoid Valve 3/8 Dia Dryer, Line 3/8 Dia Coil MCK /240V Coil FJAM-A106-CAV-001 IHP, R404A, 230V MT Condenser Not included in kit Kit includes parts below Kit Evaporator,.90 Ton Evaporator Coil.46 Ton, 5,500 BTU Expansion Valve.50 Ton Solenoid Valve 3/8 Dia Dryer, Line 3/8 Dia Coil MCK /240V Coil FJAM-A126-CAV HP, R404A, 230V Condenser Not included in kit Kit includes parts below Kit Evaporator, G Evaporator Coil 1.6 Ton, 20,000 BTU Expansion Valve 1.5 Ton Solenoid Valve 3/8 Dia Dryer, Line 3/8 Dia Coil MCK /240V Coil FJAM-A225-CFV HP, R404A, 230V MT Condenser Not included in kit Kit includes parts below Kit Evaporator, 1.25 Ton Evaporator Coil 1.25 Ton, 15,000 BTU Expansion Valve 1.5 Ton Solenoid Valve 3/8 Dia Dryer, Line 3/8 Dia Coil MCK /240V Coil FJAM-A200-CFV-001 2HP, R404A, 230V M Condenser Not included in kit 63

64 64 WIRING DIAGRAM

65 Limited Warranty (Within the contiguous U.S. including Alaska, Hawaii, and Canada) Lang Bakery Equipment ( L.B.C. Equipment ) has been skillfully manufactured, carefully inspected and packaged to meet rigid standards of excellence. Lang Bakery Equipment Company (L.B.C.) warrants products produced and sold by L.B.C. and its duly authorized agents, against defects in materials and workmanship within the following limitations: What is Provided: Limited replacement parts as specified below, including standard ground shipping from Lang or service parts center when required. Limited labor for repair as specified below, including authorized service agent s transportation, portal to portal, up to one hundred (100) miles round trip and two (2) hours travel time. L.B.C., or an authorized service representative, will repair or replace, at L.B.C. s sole discretion, any L.B.C. equipment, including but not limited to the listed exclusions. Coverage Period: Extending from the date of shipment from Lang Bakery Co, or its duly authorized dealer/distributor for the specified period. All removable parts and components including but not limited to: Burners, Racks, Valves, Grates, for a period of three (3) months limited parts and labor. LRO Model Rack Ovens, LRP Model Rack Proofers and LRPR Model Retarder Proofers for a period of one (1) year limited parts and labor. Replacement parts shall be warranted for a period of ninety (90) days after installation by an authorized L.B.C. service agent. Conditions: Covered equipment must have been properly installed and according to the requirements of the installation manual and all applicable local codes. The equipment shall not have been abused, misused or neglected or used for purposes other than intended by L.B.C. Water connected to the appliance shall have been in compliance with the following requirements: o Cold water, 30 to 80 PSI o ph between 7 and 7.5 o Conductivity less than 1/500,000 Ω per inch o Total dissolved solids less than 100 PPM o Hardness from 6.3 to 8.8 grains per gallon o Maximum Salinity and Ion content: Chlorides: < 30 PPM Sulfates: < 40 PPM Iron: < 0.1 PPM Copper: < 0.05 PPM Manganese: < 0.05 PPM This warranty is exclusive and in lieu of all other warranties, expressed or implied, including expressed or implied warranties of merchantability or fitness for a particular purpose, each of which is hereby expressly 65 disclaimed. The remedies described herein are exclusive and in no event shall Lang be liable for special, consequential or incidental damages for the breach or delay in the performance of this warranty. Rev-02 7/05

66 Conditions (cont): It is the responsibility of the purchaser to install and maintain the water supply to the appliance. Failure to provide satisfactory water quality of the appliance in accordance with the operating manual requirements can cause damage to internal components and will VOID the warranty. All repair work is to be performed by a L.B.C. authorized service agent. Equipment must be at the location of the original purchaser/user and shall not have been resold or reclaimed by another party. L.B.C. equipment is for commercial use only. If sold as a component of another (OEM) manufacturer s equipment, or if used as a consumer product, such equipment is sold AS IS and without any warranty. Conditions of sale of the equipment shall have been met in full. The request for repair shall be made within the limited period of the warranty. Failure to meet the above conditions will void this warranty Exclusions: This warranty does not cover the following: Routine general maintenance, or periodic adjustment Thermostat calibration after the first 30 days of use Air and gas burner adjustments Fuse replacement Cleaning and adjusting burners and pilot burners Rack oven shutter adjustments Repairs adjustments and corrections in the refrigeration portion of retarder/proofers resulting from the improper installation Retightening of screws and fasteners Failures caused by erratic or inadequate electrical, water, ventilation or gas service Unauthorized repairs Premature rusting, corrosion, or mineral build up caused by incoming water Attached water treatment systems Expedited freight on replacement parts other than standard ground shipments Ordinary wear and tear Use of the equipment for purposes other than those intended including non-commercial use such as residential or domestic Appliances installed outside the contiguous U.S., including Alaska and Hawaii, and Canada Incidental costs, charges, loss of business and damages as incurred by the user or others as a result of the use or failure of the equipment Work and workmanship of the authorized service agent or others in the repair of the equipment Other failures that are beyond the reasonable scope of this warranty Damages cause during shipment is to be reported to the carrier, is not covered under this warranty, and is the sole responsibility of the purchaser/user Natural disaster This warranty is exclusive and in lieu of all other warranties, expressed or implied, including expressed or implied warranties of merchantability or fitness for a particular purpose, each of which is hereby expressly 66 disclaimed. The remedies described herein are exclusive and in no event shall Lang be liable for special, consequential or incidental damages for the breach or delay in the performance of this warranty. Rev-02 7/05

67 Notes: This warranty is exclusive and in lieu of all other warranties, expressed or implied, including expressed or implied warranties of merchantability or fitness for a particular purpose, each of which is hereby expressly 67 disclaimed. The remedies described herein are exclusive and in no event shall Lang be liable for special, consequential or incidental damages for the breach or delay in the performance of this warranty. Rev-02 7/05

68 This warranty is exclusive and in lieu of all other warranties, expressed or implied, including expressed or implied warranties of merchantability or fitness for a particular purpose, each of which is hereby expressly 68 disclaimed. The remedies described herein are exclusive and in no event shall Lang be liable for special, consequential or incidental damages for the breach or delay in the performance of this warranty. Rev-02 7/05