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Champion U-HB Technical Manual

Undercounter dishwasher
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Champion
The Dishwashing Machine Specialists
June, 1995
P.O. Box 4149
Winston-Salem, North Carolina 27115-4149
Champion Industries, Inc.
Technical Manual
Undercounter
Dishwasher
Machine Serial No.
336/661-1556
Model
U-HB
High Temperature
with Built-In Booster
U-H1
High Temperature
U-LD
Low Temperature
111752-1
P/N
Manual
Fax: 336/661-1660

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  • Page 1 The Dishwashing Machine Specialists Technical Manual Undercounter Dishwasher Model U-HB High Temperature with Built-In Booster U-H1 High Temperature U-LD Low Temperature Machine Serial No. 111752-1 June, 1995 Manual P.O. Box 4149 Winston-Salem, North Carolina 27115-4149 336/661-1556 Fax: 336/661-1660 Champion Industries, Inc.
  • Page 2 Champion Service Agency___________________________________ Phone _____________ _____________________________________________________________________________ Champion Industries Service: 1-800-858-4477 Champion Service Fax: 1-336-661-1660 We strongly recommend that you fax your orders. NOTE: When calling to order parts, be sure to have the model number, serial number, voltage, and phase of your machine.
  • Page 3 110211 1/1/95 — Corrected Item #4, changed P/N 108265 to P/N 107550, changed 1/2" to 3/4" 4/10/95 52-53 87075 Redesigned U-HB Booster Tank for machines beginning with S/N 87075 and above 2/9/96 87724 Changed control thermostats to P/N 112204...

  • Page 4: Table Of Contents

    Plumbing Connections......................10 Water Connections.......................10 Drain Connections .......................11 Chemical Connections......................12 Models U-H1 and U-HB....................12 Model U-LD........................12 INITIAL START-UP ........................13 Model U-H1 and U-HB .......................13 Model U-LD ........................13 OPERATION ..........................14 Model U-H1 and U-HB .......................14 Model U-LD ........................15 MAINTENANCE........................16 Maintenance Schedule ......................16 CLEANING ........................16...
  • Page 5 Figure 1— Drain Connection U-H1/U-HB ................11 Figure 2— Drain Connection U-LD ..................11 Figure 3— U-H1/U-HB Chemical Connection Points .............12 Figure 4— Pump Motor Wiring Diagrams U-H1/U-HB/U-LD ..........20 Figure 5— U-H1/U-HB Timer Chart..................21 Figure 6— U-LD Timer Chart ....................21 Figure 7— U-LD Timer Cam Locations ..................21 Figure 8—...
  • Page 6 NOTES NOTES...

  • Page 7: The Dishwashing Formula

    1. Temperature ..............Heated water penetrates and loosens soil on dishes. 2. Time .................. Wash and rinse times (set by NSF and Champion) allow everything to work. 3. Mechanical Action ............Pumps produce water pressure which flushes the soil off dishes.

  • Page 8: Warranty

    Champion, whichever occurs first. [See below for special provisions relating to glasswashers.] The warranty registration card must be returned to Champion within ten (10) days after installation. If warranty card is not returned to Champion within such period, the warranty will expire after one year from the date of shipment.

  • Page 9: Introduction

    Welcome to Champion... and thank you for allowing us to take care of your dishwashing needs. This manual covers the undercounter series dishwasher models U-H1, U-HB, and U-LD. Your machine was completely assembled, inspected, and thoroughly tested at our factory before it was shipped to your installation site.

  • Page 10: General

    U-H1, U-HB, U-LD The U-H1 model is a high temperature (82°C/180°F rinse) sanitizing model without booster. The U-HB model is a high temperature (82°C/180°F rinse) sanitizing model with booster. The U-LD is a low temperature (Min. 49°C/120°F-60°C/140°F Optimum) sanitizing model for use with a sodium hypochlorite (Chlorine) based sanitizer at a minimum concentration of 50PPM in the final rinse.

  • Page 11: Accessories

    Additional dishracks: Dish rack (peg) P/N 101285 Silverware rack (flat bottom) P/N 101273 Electrical Power Requirements Model Voltage Booster Rise Machine Power Requirement (U-HB Only) Full Load Amps (125% Service Factor) U-H1 208/60/1 — 12 Amps 15 Amps U-H1 220/60/1 —...

  • Page 12: Electrical Connections

    Minimum incoming water supply temperature requirements are listed below U-HB with built-in 40° rise electric booster (Minimum 60°C/140°F) (Min./Max. flow pressure 138 kPa/20-22 PSI) U-HB with built-in 70° rise electric booster (Minimum 43°C/110°F)

  • Page 13: Drain Connections

    Models U-H1, U-HB, and U-LD are GRAVITY DRAIN machines equipped with a 1-1/4” hose connection point. • Drain height for models U-H1 and U-HB must not exceed 4-1/2” above floor level. • Drain height for model U-LD must not exceed 7-1/2” above floor level.

  • Page 14: Chemical Connections

    Detergent injection point and location of conductivity cell must be provided by a qualified chemical supplier. Detergent may be added manually for U-H1/U-HB models not equipped with dispensing systems. Consult your local chemical supplier for the correct amount of non-chlorinated automatic dishwashing liquid detergent.

  • Page 15: Initial Start-Up

    INITIAL START-UP After plumbing and electrical connections are completed, follow the steps below to place your machine in service. Model U-H1 and U-HB Remove any foreign material from inside the machine. Make sure filter, and drain-overflow tube are in place.

  • Page 16: Operation

    OPERATION OPERATION Model U-H1 and U-HB Close the door and flip power switch ON Red power light illuminates. Tank fills automatically and tank heat comes on Monitor wash tank temperature gauge Wait for temperature reading to reach Minimum 66°C/150°F Prescrap and load ware into rack...

  • Page 17: Model U-Ld

    OPERATION Model U-LD Close the door and flip power switch ON Red power light illuminates Hold the Fill switch in “UP” position Wash tank fills with water for about 45 sec. Monitor wash tank temperature gauge Temperature reading must be Min.

  • Page 18: Maintenance

    Maintenance Schedule CLEANING • Every 2 Hours or After Each Meal Period Model U-H1 and U-HB Flip the power switch OFF. Remove the drain-overflow tube, drain the machine. Flush tank interior with fresh water. Remove and clean the sump filter and pump intake screen.

  • Page 19: Model U-Ld

    Skin contact with deliming solutions can cause severe irritation and possible chemical burns. Consult your chemical supplier for specific safety precautions. DELIMING PROCESS Model U-H1 and U-HB (Not equipped with chemical dispensing system) Remove all dishes from machine. Drain the machine and refill with fresh water.

  • Page 20: Model U-Ld

    Clean all detergent residue from the exterior of the machine. Check the drains for leaks. Clean accumulated mineral deposits from the tank heating elements (U-H1, U-HB ONLY) Check that float switch moves freely (U-H1,U-HB ONLY). Check and clean chemical dispensing system (U-LD ONLY).

  • Page 21: Troubleshooting Chart

    -Incoming water temperature .....Raise temperature to: when in use at machine too low 70°C/180°F for U-H1 60°C/140°F for U-HB 40°F rise booster 43°C/110°F for U-HB 70°F rise booster 60°C/Min 120°F-(140°F Optimum) for U-LD -U-LD machine left idle......Drain and refill with fresh hot water for extended period (Optimum temperature 140°F)

  • Page 22: Basic Service

    Pump Motor Wiring Diagrams Timed Fill/Low Water Tank heat Protection Models U-H1, U-HB use a float switch and fill timer to control tank fill and tank heat. Model U-HB built-in booster heater is also controlled by the float switch. Operation: When power switch is turned on, fill timer runs for a minimum of 90 seconds to fill the tank.

  • Page 23: Mechanical Service

    BASIC SERVICE MECHANICAL SERVICE Timer Cam Adjustments Model U-H1and U-HB cycle timers are set at the factory and are not adjustable. See Timer Chart (Fig. 5) for the U-H1/U-HB timer cam settings. SECOND TIMER CYCLE 90 SEC. CYCLE WASH 67 SEC.

  • Page 24: Pump Seal Replacement

    BASIC SERVICE MECHANICAL SERVICE (Cont.d) Pump Seal Replacement 1. Disconnect the power to the machine at the main breaker panel or fuse box. 2. Drain the machine. 3. Remove the guage bracket on the front of machine. 4. Remove drain plug on the pump volute and drain the pump. 5.

  • Page 25: U-Hb Component Diagram

    BASIC SERVICE Model U-HB Component Diagram (Pg. 10) ELECTRICAL CONNECTION FILL TIMER (Pg. 50) (Pg. 29) VACUUM ELECTRICAL BREAKER CHEMICAL CONNECTIONS (Pg. 12) MACHINE (Pg. 10) ELECTRICAL DOOR SAFETY CONNECTION MAGNETIC REED DATA PLATE SWITCH (Pg. 26) SPRAY ARMS (Pg. 42) POWER (Pg.

  • Page 26: Replacement Parts List

    REPLACEMENT PARTS Model U-LD Model U-H1/U-HB 28 29 30 31 Figure 9 - U-H1/U-HB/U-LD Panels & Gauges...
  • Page 27 Switch, magnetic (door safety) ..........108954 Nut, grip (6-32 w/nylon insert) ..........110868 Clip, mounting................100097 Screw (10-32 x 1/2 Truss Hd)............ 110223 Top cover assembly (U-H1, U-HB, U-LD) ....... 108036 Cap 1-1/4” diameter ..............108035 FH leveler (3/8-16)..............110244 Bracket gauge (U-LD)..............108391 Thermometer 48”...
  • Page 28 REPLACEMENT PARTS 11 12 13 Figure 10 - U-H1/U-HB/U-LD Door, Tracks, Safety Switch...
  • Page 29 REPLACEMENT PARTS U-H1/U-HB/U-LD Door, Tracks, Safety Switch Fig. 10 Part Part Description Qty. Item No. 110228 Pin, door ..................110229 Support, door................0708691 Door (Does not include items 1, 2, 4-7, 17, 18) ......104985 Nut, plain (10-32)..............106486 Washer, lock (#10 split) .............
  • Page 30 Brass Cross Fitting. (See Photo Below.) Prior to S/N 85680. Item 5 was P/N 107892, Tee Connector. Items 4, 14 were not used. Final Rinse Thermometer was located on Booster for U-HB and on Manifold for U-H1. Model U-HB Shown Final Rinse...

  • Page 31: Figure 11-U-H1/U-Hb Plumbing

    REPLACEMENT PARTS U-H1/U-HB PLUMBING Fig. 11 Part Part Description Qty. Item No. 109463 Tee, lower wash arm ..............109466 O-ring, wash arm tee..............110210 Hose, wash ................. 107419 Barb, hose (1/2 x 1/2 NPT brass)..........100598 Cross (1/2” brass) Beginning w/ S/N 85680......
  • Page 32 REPLACEMENT PARTS Prior to S/N 86149 Beginning with S/N 86149 and above Solenoid Valve Detail 20 22 24 29 27 Figure 12 - U-H1/U-HB Fill Solenoid Valve and Piping...

  • Page 33: Figure 12-U-H1/U-Hb Fill Solenoid Valve And Piping

    Tee (1/2 x 3/8 x 3/8 brass) ............105994 Clamp, hose................107414 Tubing, high density..............2 ft. 111100 Elbow, female (1/4 OD x 1/8 NPT) ........... 111715 Hose, fill (1/2”) ................— 900742 Kit, fill piping assy (U-HB only) (includes items 14-20, 25-29, 32)
  • Page 34 REPLACEMENT PARTS 11 12 Model U-LD Located Inside Wash Tank Figure 13 - U-LD Plumbing...

  • Page 35: Figure 13-U-Ld Plumbing

    REPLACEMENT PARTS U-LD PLUMBING Fig. 13 Part Part Description Qty. Item No. 109463 Tee, lower wash arm ..............105993 Clamp, hose................109466 O-ring, wash arm tee..............106153 Nozzle..................109034 Washer, fiber (13/16 x 1/16) ............110210 Hose, wash ................. 100736 Bolt (1/4-20 x 3/4 Hex Hd)............

  • Page 36: Figure 14-U-Ld Fill Solenoid Valve And Piping

    REPLACEMENT PARTS Prior to S/N 86149 Solenoid Valve Detail Beginning with S/N 86149 and above Figure 14 - U-LD Fill Solenoid Valve and Piping...
  • Page 37 REPLACEMENT PARTS U-LD PLUMBING Fig. 14 Part Part Description Qty. Item No. 110915 Hose, fill (1/2”) ................204347 Valve, solenoid (120V) ............. 108877 Coil, solenoid valve (120V) ............109386 Diaphragm, solenoid valve (Not shown) ........108713 Manifold (1/2”) ................109034 Washer, fiber (13/16 x 1/16) ............
  • Page 38 REPLACEMENT PARTS Figure 15 - U-LD Chemical Dispensing System...

  • Page 39: Figure 15-U-Ld Chemical Dispensing System

    REPLACEMENT PARTS U-LD CHEMICAL DISPENSING SYSTEM Fig. 15 Part Part Description Qty. Item No. 203194 Union, bulkhead ................. 107928 Tubing, natural - tank to pump (Sanitizer) ........ 6 ft. 107930 Tubing, blue - tank to pump (Rinse aid)........6 ft. 107929 Tubing, red - tank to pump (Detergent) ........

  • Page 40: Replacement Parts

    REPLACEMENT PARTS U-H1/U-HB Float Switch Beginning with S/N 84299 and above Figure 16 - U-H1/U-HB Float Switch, Sump, Pump Hoses...

  • Page 41: Figure 16-U-H1/U-Hb Float Switch, Sump, Pump Hoses

    REPLACEMENT PARTS U-H1/U-HB FLOAT SWITCH, SUMP, PUMP HOSES Fig. 16 Part Part Description Qty. Item No. 111443 Float switch assembly ..............205138 Washer ..................104584 Nut, plain (1/2-13 Hex SST)............104889 Compound 440 (Grey putty) ............1 ft. 109284 Tailpiece, elbow (Drain connection) ..........

  • Page 42: Figure 17-U-Ld Sump, Pump Hoses, Drain Assembly

    REPLACEMENT PARTS 27 28 20 21 Figure 17 - U-LD Sump, Pump Hoses, Drain Assembly...
  • Page 43 REPLACEMENT PARTS U-LD SUMP, PUMP HOSES, DRAIN ASSY Fig. 17 Part Part Description Qty. Item No. 313545 Overflow cover................109462 Filter, sump................. 316797 Plate, strainer................109461 Sump................... 109465 O-ring ..................110440 Bolt (25mm Hex Hd) ..............110881 Washer, sealing................110214 Dull Nut (M6) ................
  • Page 44 REPLACEMENT PARTS Figure 18 - U-H1/U-HB Wash Arm Assembly...

  • Page 45: Figure 18-U-H1/U-Hb Wash Arm Assembly

    REPLACEMENT PARTS U-H1/U-HB WASH ARM ASSEMBLY (Quantities listed per one wash arm assembly) Fig. 18 Part Part Description Qty. Item No. 107329 Plug, rinse arm ................108016 O-ring ..................107337 Nut, plain (M4) ................107330 Nozzle, bottom rinse ..............108730 Nozzle, top rinse ................
  • Page 46 REPLACEMENT PARTS Figure 19 - U-LD Wash Arm Assembly...

  • Page 47: Figure 19-U-Ld Wash Arm Assembly

    REPLACEMENT PARTS U-LD WASH ARM ASSEMBLY (Quantities listed per one wash arm assembly) Fig. 19 Part Part Description Qty. Item No. 107328 Plug, wash arm ................107332 Nozzle, bottom wash..............107337 Nut, plain (M4) ................110395 Bearing, lower plastic hub (long)..........110394 Bearing, upper plastic hub (short)..........
  • Page 48 REPLACEMENT PARTS U-LD U-H1 U-HB Flange not a separate Replacement Part. Comes with Item 3 or 4 only Model U-LD Model U-H1/U-HB Figure 20 - Pump/Motor Assembly...

  • Page 49: Figure 20-Pump/Motor Assembly

    Volute, pump ................107424 Plug (1/8”).................. 108003 Impeller (U-H1/U-HB) (Closed face) ........109434 Impeller (U-LD) (Open faced)........... — 900164 Kit, pump service, (U-H1/U-HB) (Incls. Items 5, 6, 11, 13) — 900163 Kit, Pump service, (U-LD) (Incls. Items 5, 6, 11, 14)
  • Page 50 REPLACEMENT PARTS Figure 21 - U-H1/U-HB Control Cabinet...
  • Page 51 Lug, wire ..................106402 Block, fuse (30A, 2 pole, 600V)..........107384 Fuse, TRM-20A (250V, time delay) .......... 107370 Contactor (40° rise booster)(U-HB only) ........111703 Contactor (70° rise booster)(U-HB only) ........111072 Contactor (70° rise booster)(U-HB only) ........111069 Relay (240V)................
  • Page 52 REPLACEMENT PARTS Figure 22 - U-LD Control Cabinet...

  • Page 53: Figure 22-U-Ld Control Cabinet

    REPLACEMENT PARTS U-LD CONTROL CABINET Fig. 22 Part Part Description Qty. Item No. 100097 Screw (10-32 x 1/2 Truss Hd)............ 107150 Switch, toggle (On/Mom On, DPDT)........106995 Circuit breaker (5 amp) .............. 106364 Pilot light (120V)(Green)............111614 Pushbutton (Green) ..............111617 Contact block (NO)..............
  • Page 54 REPLACEMENT PARTS Beginning with S/N 87075 and above Hose Not Shown Hose Not Shown (U-HB Only) Figure 23 - U-H1/U-HB Thermostats, Booster Assembly, Wash Tank Element...

  • Page 55: Figure 23-U-H1/U-Hb Thermostats, Booster Assembly, Wash Tank Element

    Thermostat, Wash tank (S/N 89897 and above) ......109069 Thermostat, Booster tank, U-HB only (S/N 79001 thru 87723)... 112204 Thermostat, Booster tank, U-HB only (S/N 87724 thru 89896) ... Replace with P/N 109069 109069 Thermostat, Booster tank, U-HB only (S/N 89897 and above) ...
  • Page 56 REPLACEMENT PARTS 10 11 12 U-H1/U-HB Only Located Inside Drain Lift Tank Item 14 Above U-LD Only Figure 24 - U-H1/U-HB/U-LD Drain Lift Kits (Optional)

  • Page 57: Figure 24-U-H1/U-Hb/U-Ld Drain Lift Kits (Optional)

    U-H1/U-HB/U-LD DRAIN LIFT KITS (Optional) Fig. 24 Part Part Description Qty. Item No. 403898 Kit, pumped drain lift (Complete)(U-H1/U-HB only)....309673 Cover, cabinet................110067 Tubing (3/4 ID x 1 1/16 OD) ............. 5 ft. 107777 Connector (1/2” Romex)(Not shown)........106068 Cord (SJ 16-3)................
  • Page 58 REPLACEMENT PARTS Figure 25 - Dishracks, Strainer, PRV...

  • Page 59: Figure 25-Dishracks, Strainer, Prv

    REPLACEMENT PARTS U-H1/U-HB/U-LD Dishracks, Strainer, PRV Fig. 25 Part Part Description Qty. Item No. 101273 Rack, silverware (Flat bottom)........... 101285 Rack, dish (Peg) ................. 110768 Strainer, line (3/4” Brass) (Optional)......... 107550 Valve, pressure regulating (3/4”) (Optional)......

  • Page 60: Electrical Schematics

    RINSE AID/ SANI SIGNAL NO, NC POSITIONS ARE REVERSED FROM WHAT IS SHOWN ON MACHINES WITH ADJUSTABLE TIMER CAMS See Page 60 FTRA for U-H1/U-HB Timer Chart WHTR 1.5KW HLTS HLTS (UHB ONLY) C752517B Figure 26 - U-H1/U-HB Electrical Schematic...

  • Page 61: Figure 27-U-Ld Electrical Schematic

    ELECTRICAL SCHEMATICS U-LD TO CUSTOMERS DISCONNECT SWITCH (115 VOLT) 1MTR WHITE LINE V BLACK HOLD-IN RELAY/TANK PREHEAT DOOR SAFETY SWITCH RELAY MOTOR CONTACT 1MTR PUMP MOTOR BHTR BOOSTER HEATER BOOSTER THERMOSTAT CIRCUIT BREAKER CYCLE LIGHT DETERGENT PUMP DOOR SAFETY SWITCH DRAIN VALVE FILL VALVE GROUND...

  • Page 62: Timer Charts

    TIMER CHARTS U-H1/U-HB Timer Chart SECOND TIMER CYCLE 90 SEC. CYCLE WASH 67 SEC. WASH DWELL 2 SEC. RINSE RINSE 21 SEC. U-LD Timer Chart SECOND TIMER CYCLE 150 SEC. WASH 62 SEC. RINSE 32 SEC. DRAIN 40 SEC. FILL 34 SEC.

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