Hobart IB290 ML-110862 User's Manual
Contents
1. FITTING TUBE s FERRULE 140 000 amp 235 000 BTU Hr FITTING TUBE s NUT 140 000 amp 235 000 BTU Hr BUSHING PIPE 2 4 7 2 280 000 amp 290 000 BTU Hr ADAPTER PIPE 2 x 2 MPT 280 000 amp 290 000 BTU Hr FITTING TUBE 2 MPT 90 ELBOW 280 000 amp 290 000 BTU Hr TUBE GAS 280 000 amp 290 000 BTU Hr FITTING TUBE s FERRULE 280 000 amp 290 000 BTU Hr FITTING TUBE s TBG NUT 280 000 amp 290 000 BTU Hr INSULATION TANK 140 000 BTU Hr INSULATION TANK 235 000 280 000 amp 290 000 BTU Hr FITTING TUBE s x 2 MPT STRAIGHT 57 000 BTU Hr TUBE GAS 57 000 BTU Hr GASKET COIL FRONT 57 000 GASKET COIL REAR 57 000 GASKET COIL 140 000 GASKET COIL 235 000 280 000 amp 290 000 BTU Hr GASKET COIL THREAD FRONT 57 000 BTU Hr GASKET COIL THREAD REAR 57 000 BTU Hr GASKET COIL THREAD 140 000 GASKET COIL THREAD 235 000 280 000 amp 290 000 BTU Hr PLATE COIL SEAL FRONT 57 000 BTU Hr PLATE COIL SEAL REAR 57 000 BTU Hr PLATE COIL SEAL 140 000 BTU Hr PLATE COIL SEAL 2352. 15 To Turn Off Gas iere dus ule ERR REESE ETE E EE 15 OPERATION db tus ueni eA 16 MAINTENANGE s ta gue Vet eU et ed per RR ened un qox ando Pa e bod 17 EubriGatiOm s eot M ever te 17 SySIOIT cosciente ERE icr n AH c tin 17 Check Burner Flame iuo oat utc c t a cat 17 THOUBLESHOO TING we rx e e Od ata ai a ete De qd 17 m RPI 18 SEVICE RP M REM C cp DESERT 20 Installation Operation and Care INFRARED BOOSTER GAS WATER HEATERS SAVE THESE INSTRUCTIONS GENERAL The Infrared Booster Gas Water Heaters available for natural gas or propane provide 180 F rinse water for commercial dishwashing machines Health codes and NSF permit 180 F minimum temperature water to be used as a Sanitizing rinse for utensils and dishware used in restaurants and food serving operations Water enters the gas booster water heater at the inlet water connection circulates through the gas heat exchanger and stainless steel tank and constantly maintains the 180 F minimum water temperature at the outlet connection The table Delivery Rates 180 F indicates the maximum amount of hot water that can be delivered by the various Booster Heater model
3. 1 BLOCK TERMINA C i reper bids aang A Le pue eit 1 LUG SOLDERLESS 2 MOTOR 235 000 280 000 amp 290 000 BTU Hr 1 PUMP HOUSING 235 000 280 000 amp 290 000 1 SHAFT SEAL 235 000 280 000 amp 290 000 1 IMPELLER 235 000 280 000 amp 290 000 1 MOTOR 57 000 amp 140 000 BTU Hr 1 PUMP HOUSING 57 000 amp 140 000 1 SHAFT SEAL 57 000 amp 140 000 1 IMPELLER 57 000 amp 140 000 BTU Hr 1 FLANGE 57 000 amp 140 000 2 FLANGE GASKET 57 000 amp 140 000 2 PUMP HOUSING GASKET 57 000 amp 140 000 BTU Hr 1 IMPELLER GASKET 57 000 amp 140 000 1 ACORN NUT 57 000 amp 140 000 1 IMPELLER SHIM 57 000 amp 140 000 1 PUMP HOUSING COVER 57 000 amp 140 000 BTU Hr 1 RELAY 2 POLE 120 VAC 4CR Stand Alone 57 000 BTU Hr non AM14 Dishwasher Activated 57 000 BTU Hr and all 140 000 2
4. INFRARED BOOSTER INFRARED BOOSTER Gas Water Heaters MODEL IB57 ML 110898 140 110899 IB235 ML 110861 290 110862 CORPORATION 701 5 RIDGE AVENUE TROY OHIO 45374 0001 937 332 3000 www hobartcorp com FORM 34070 Rev C 10 99 IMPORTANT FOR YOUR SAFETY WARNING IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE PERSONAL INJURY OR DEATH DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER SERVICE AGENCY OR THE GAS SUPPLIER Installer Affix these nstructions adjacent to the appliance Customer Save these nstructions for future reference HOBART CORPORATION 1998 1999 2 5 IMPORTANT FOR YOUR SAFETY E 2 GENERAL fan ide ner atur MW d aal Ts 4 Delivery Rates 4 INSTALLATION
5. Before lighting the heater make sure the water pump is operating properly With the gas valve in the off position activate the power switch If no power switch is present activate the dishwasher making a demand for hot rinse water The pump should start immediately Allow the circulator to pump water through the system Lighting the Heater CAUTION Liquefied petroleum gas is heavier than air and sinks to the ground Exercise extreme care in lighting the heater in confined areas WARNING IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE PERSONAL INJURY OR LOSS OF LIFE This heater DOES NOT have a pilot is equipped with a hot surface ignition device which automatically lights the burner DO NOT attempt to light the burner by hand Before operating smell all around the heater area for gas Be sure to smell nextto the floor because some gases are heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch Do not use any phone in your building mmediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e Ifyou cannot reach your gas supplier call the fire department Use only your hand to push move or turn the gas control knob or lever Never use tools If the knob or lever will not push in move or turn by hand do
6. to prevailing winds Avoidareas where local experience indicates that condensate drippage may cause problems such as the following Above planters patios public walkways or areas where condensate or vapor could create a nuisance or hazard or where its discharge could be detrimental to the operation of regulators relief valves or other equipment 8 GAS CONNECTION For model IB57 the gas inlet pipe size is 2 NPT atthe gas valve For models IB140 IB235 and IB290 the gas inlet pipe size is 2 4 NPT at the gas valve The gas supply line must be sized to adequately provide the input BTU Hr rate for that model at the specified flowing pressure see table The maximum inlet gas pressure must not exceed GAS PRESSURE SPECIFICATIONS the Max value shown in the chart at right The LOWWG GAS PRESSURE NOT STATIC Min value is for the purposes of input adjustment e Inches W C Water Column ode The gas valve Fig 5 is provided with apressure Type of Gas ES tap to measure the gas pressure downstream H 55715140 which is also the manifold pressure 1B235 290 45 140 32 y Natural Gas Gas supply piping must have a sediment trap IB57 IB140 and a manual shutoff valve supplied by others 15235 18290 11 13 3 2 installed outside of the rear cover panel ahead Propane of the booster heater s gas control Fig 5 NOTE DO NOT use teflon tape o
7. EUR PESE ERAS 5 Unpacking eod detect ee aca ice ted edes e gen rege ee 5 Installation se ered aie eat cide aed Wee Sales 5 LOGALON i a a 5 ps 5 Leveling er ney PCIE IER t eS eee hee ehe 5 Combustion Ventilation Air 5 Venting Requirements eed don Acceptable Vent Piping 2 eee Gas Core lb eisi oe Ls EE 9 Gas Pressure Specifications b 9 Water laa cade M uma 10 Plumbing ConnectionS 5 eene dee Eee adt 10 El ctrica Connections i face ed M td 12 Electrical adu 13 Start Up Procedures i x os xe 14 Filling the Booster Piping s eem 14 Checking the Circulators conte bale Sad hae 14 Lighting the Heater ias dE pee ieee E RU CESSARE 14 What To Do If You Smell Gas vet Rem ETE DER HERE ERR 14 Hot Surface Ignition Using the Robertshaw Gas
8. Termination Box 02SVSRTX 3 02SVSRTX 4 AL 29 4C is a registered trademark of Allegheny Ludlum Corp Per the National Fuel Gas Code ANSI Z223 1 the heater must be vented in one of three ways 1 Into the exhaust system Fig 2 The vent pipe must not penetrate the filter When the heater is vented into the exhaust system an electrical interlock must be provided by others to allow the flow of gas to the booster heater burner ONLY when the exhaust system is functioning Refer to APS1 and APS2 on the wiring diagram in the control box accessed by removing the left side panel also refer to pages 12 and 13 Through the sidewall or the ceiling Fig 3 Type 1 vent pipe 4 inch minimum diameter for 1857 140 5 inch minimum diameter for 235 IB290 be used when venting vertically provided a one inch minimum clearance to combustible construction is maintained and the termination above the roof uses a listed wind cap Freely vented into the room or space where it is installed Fig 4 provided that a A mechanical exhaust system is present in the kitchen b The flue outlet of the booster water heater is at least 36 inches vertically and 6 inches horizontally distant from any surface other than the booster or dishwasher and c Any or all gas fired equipment is installed so the total BTU input rating of the unvented gas appliance s divided by the total cubic feet of the room area including a
9. 0 000 BTU Hr VALVE 1 PRESSURE TEMPERATURE RELIEF 235 000 280 000 amp 290 000 BTU Hr 1 RELAY ELEC IM Vere HEATER ELEMENT E 32 57 000 amp 140 000 BTU Hr HEATER ELEMENT E 54 235 000 280 000 amp 290 000 BTU Hr 19 Components Pump Side continued PART No 00 294500 00 294681 00 087714 00 294677 00 294677 00 784512 00 294681 00 087714 00 475458 00 294325 00 118544 00 476849 00 476849 00 476849 00 476849 00 749112 00 749112 00 749112 00 749112 00 749112 00 749112 00 749112 00 749112 00 749112 00 749112 00 749112 00 087714 00 087714 SERVICE 040 1 028 1 046 1 00002 00003 027 1 00062 00001 013 1 00001 00001 00002 00003 00004 00001 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 046 1 046 4 NAME OF PART AMT TRANSFORMER 30VA 50 60HZ 1 2x eorr 1 RELAY 2 POLE 120 2CR 3 CIRM cr am oa att a 4 CIAMP WIRE enero ee 1 BOARD IGNITOR 24VAC EE 1 THERMOSTAT MANUAL 1 RELAY TIME DELAY 1 BOARD ASSY TEMP CONTROL 120 200
10. 000 280 000 amp 290 000 BTU Hr PLUMBING PUMP TO COIL 57 000 BTU Hr PLUMBING PUMP TO COIL 140 000 BTU Hr PLUMBING PLUMBING PLUMBING PUMP INLET 57 000 PUMP INLET 140 000 PUMP COIL 235 000 280 000 amp 290 000 BTU Hr PLUMBING PUMP INLET 235 000 280 000 amp 290 000 BTU Hr HOSE BRAIDED 55 2 4 57 000 amp 140 000 BTU Hr HOSE BRAIDED ssr 1 235 000 280 000 amp 290 000 BTU Hr SEALER wie dha ike GASKET BURNER 57 000 BTU Hr GASKET BURNER 140 000 235 000 280 000 290 000 BTU Hr IGNITOR W 6 ELECTRODE ASSY SWITCH AIR 57 000 amp 140 000 Natural Propane amp 290 000 BTU Hr Natural SWITCH AIR 235 000 BTU Hr SWITCH AIR 235 000 BTU Hr amp 280 000 BTU Hr Propane RUBBER TUBE LINEAR FEET 57 000 amp 140 000 BTU Hr RUBBER TUBE LINEAR FEET 235 000 280 000 amp 290 000 BTU Hr HARNESS LIGHT INDICATOR SEALED LIGHT INDICATOR SEALED VALVE 3 PRESSURE TEMPERATURE RELIEF 57 000 BTU Hr VALVE 3 PRESSURE TEMPERATURE RELIEF 14
11. 35 000 280 000 amp 290 000 BTU Hr 1 RELAY 2 POLE 24 VAC 4CR only with AM14 Dishwasher Activated Integrated Controls 57 000 BTU Hr For service problems related to this equipment contact your local Hobart authorized service office CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after servicing FORM 34070 Rev C 10 99 20 PRINTED IN U S A
12. E DIMENSIONS FLOOR TOP LEFT SIDE RIGHT SIDE FRONT BACK VENT Allowable Allowable a 52 Combustible 6 0 Alcove 7 Construction 5 6 Horizontal 1 2 Horizontal 2 20 2 10 Vertical 1 2 Vertical Approved for installation on combustible flooring 6 legs provide required clearance A front clearance of at least 24 is recommended for adequate service of controls LEVELING Four legs are welded to the bottom corners of the frame to provide the required six inch floor clearance Adjustable feet at the bottom of the four legs should be rotated in or out as required to level the booster heater front to back and side to side in its final location COMBUSTION VENTILATION AIR CAUTION Combustion air must not be contaminated by corrosive chemical fumes which can damage the heater An adequate supply of air for proper combustion and ventilation must be provided in accordance with the National Fuel Gas Code ANSI Z223 1 or applicable building codes Do not obstruct the flow of combustion and ventilation air to the heater VENTING REQUIREMENTS WARNING PROVIDE A SCREEN OR BARRIER TO PREVENT PERSONAL INJURY IN AREAS WHERE INADVERTENT PERSONNEL CONTACT WITH THE HOT VENT PIPE CAN OCCUR Models 57 and 140 are Category IV positive flue pressure excessive condensate and flue gas temperature at the heater outlet approximately 330 F Model
13. LACED IT MUST BE REPLACED WITH THE SAME TYPE RATING WIRE OR IT S EQUIVALENT 3 WHEN VENT FAN INTERLOCK UNS BY OTHERS CONTROL REFER TO GAS VALVE ELECTRICAL CONNECTION 24 VAC BSTRI 4 BSTR2 CONNECTION FOR SOME 57 000 BTU HR MODELS WITH INTEGRATED CONTROLS SYMBOL DEFINITIONS BL BLOWER CONTACT NORMALLY OPEN 0 2 CONTACT NORMALLY CLOSED CONTROL RELAY COIL GND GROUND LT PILOT LIGHT LETTER DENOTES COLOR MOTOR MANUAL RESET MOTOR PROTECTION TRANSFORMER Ap v UU HSI HOT SURFACE IGNITOR 0 SW GAS VALVE SWITCH SEPARABLE CONNECTION INSEPARABLE CONNECTION SOLID LINE STD EQUIPMENT DASHED LINE OPTIONAL WIRING ITCH PRESSURE SWITCH SWITCH CLOSES WHEN SP SES LEPPERA TURES ACTUATED THERMISTOR 13 SWITCH IS USED SWITCH TO BE PROVIDED GAS VALVE ELECTRICAL CONNECTION SOLID STATE TIME DELAY RELAY SOLID STATE THERMOSTAT TERMINAL BLOCK F 34059D ELECTRICAL DIAGRAM GAS BOOSTER 120 60 1 START UP PROCEDURES FOR YOUR SAFETY READ BEFORE OPERATING Filling the Booster Piping Fill the booster heater with water purging all air Make sure water is flowing through the booster to the dishwasher s fill or final rinse before lighting the booster heater by either leaving the main power switch off on Stand Alone units or leaving the manual gas valve closed on Dishwasher Activated units Checking the Circulator
14. ON UNPACKING Immediately after unpacking check for possible shipping damage If the Booster Heater is found to be damaged after unpacking save the packaging material and contact the carrier within 15 days of delivery Prior to installation test the electrical service to assure that it agrees with the specifications on the data plate located on the left front panel of the booster heater Be sure that the type of gas supplied to the machine natural gas or propane is the same as indicated on the data plate INSTALLATION CODES Installation must be in accordance with state and local codes or in the absence of local codes with the National Fuel Gas Code ANSI 2223 1 latest edition and the National Electrical Code ANSI NFPA 70 latest edition In Canada the installation standards are CAN CGA B149 1 CAN CGA B149 2 and CSA 22 2 No 1 latest editions LOCATION Locate the IB Series Booster Water Heater so that the required clearance dimensions are maintained Keep the appliance area clear and free from combustible materials gasoline and other flammable vapors and liquids The booster heater should be located an area where water leakage will result in damage to the area adjacent to it or to lower floors of the structure Where such areas cannot be avoided install a suitable catch pan adequately drained under the heater The pan must not restrict combustion air flow Do not install heater directly on carpeting CLEARANC
15. U Hr Components Pump Side PART No 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 749071 748560 748579 748560 476846 748561 748584 748583 748583 748583 748583 748583 748583 749110 749110 748564 748564 748564 748564 748564 748564 748863 748563 748588 FP 089 27 00 748591 00006 00005 00004 00003 00002 00001 00002 00006 00005 00004 00003 00002 00001 NAME OF PART BURNER 57 000 BTU Hr BURNER 140 000 BTU Hr BURNER 235 000 BTU Hr BURNER 280 000 amp 290 000 BTU Hr BLOWER 57 000 amp 140 000 BTU Hr BLOWER 235 000 BTU Hr BLOWER 280 000 amp 290 000 BTU Hr RESTRICTOR PLATE 57 000 BTU Hr Propane RESTRICTOR PLATE 140 000 BTU Hr RESTRICTOR PLATE RESTRICTOR PLATE 57 000 BTU Hr Natural 140 000 BTU Hr RESTRICTOR PLATE 235 000 BTU Hr Natural RESTRICTOR PLATE 290 000 BTU Hr Natural 280 000 BTU Hr FITTING ORIFICE 57 000 BTU Hr Natural FITTING ORIFICE FITTING ORIFICE FITTING ORIFICE FITTING ORIFICE FITTING ORIFICE FITTING ORIFICE pp DD e 57 000 BTU Hr Propane 140 000 BTU Hr P
16. When ordering parts be sure to provide the Model Number ML Number and Serial Number from the data plate located on the left front panel of the booster heater NOTE As continued product improvement is a policy of the manufacturer part numbers may change without notification For the latest part numbers contact your Hobart authorized service office NOTE 57 000 BTU Hr 140 000 BTU Hr amp 235 000 BTU Hr sizes apply to Natural Gas and Propane 280 000 BTU Hr applies to Propane only and 290 000 BTU Hr applies to Natural Gas only unless specified otherwise Insulation Flue PART No 00 00 00 00 00 00 00 00 00 00 00 00 749072 748680 749076 748567 749143 748682 748551 548677 749065 748870 749064 749051 NAME OF PART PLATE PLUG 57 000 BTU Hr PLATE PLUG 140 000 235 000 280 000 amp 290 000 BTU Hr PLUG COIL INSULATION 57 000 BTU Hr PLUG COIL INSULATION 140 000 235 000 280 000 amp 290 000 BTU Hr RETAINER PLUG 57 000 BTU Hr RETAINER PLUG 140 000 235 000 280 000 amp 290 000 BTU Hr RETAINING CLIP INSULATION INSULATION TAPE LINEAR FEET CAP EXHAUST 57 000 BTU Hr CAP EXHAUST 140 000 235 000 280 000 amp 290 000 INSULATION EXHAUST 57 000 BTU Hr INSULATION EXHAUST 140 000 235 000 280 000 amp 290 000 BT
17. ean air in the combustion chamber Then the gas valve opens and the hot surface ignitor heats up for four seconds With ignition the flame sensor will detect that the burner flame has been established If the burner flame is not sensed within a few seconds the circuit repeats the process from for a total of three trial ignitions before the gas valve shuts off and requires reset Toresetthe ignition safety shutoff momentarily turn the power switch off and then back on If no power switch is present turn the dishwasher off for one minute and then turn the dishwasher back on When the water temperature exceeds the setting of the operating temperature control thermostat board assembly the burner will shut off until the next call for heat The operating temperature control thermostat board assembly is factory set at 185 F On 5 Atone units the circulator pump will stay on as long as the On Off Switch is on On DISHWASHER AcTIVATED units pump will stay as long as the dishwasher is on The blower is on when the thermostat is calling for heat and for 30 seconds after it is satisfied Flame Observation Port Amber Indicator Light Heat is being demanded Green Indicator Light The Booster Heater has power On Off Switch Present only Stand Alone Units 4 5221 Activated Tj Iz un
18. ections Polarity must be observed for the heater to operate properly Connect the hot Black wire to L1 the White Neutral wire to and the Green wire to the Ground lug Consult wiring diagram accessed by removing the left front panel Provide a separate fused circuit from the main electrical panel to the heater Also provide a means of disconnecting the electrical supply within sight of the heater Keep wires away from vent When connecting a Dishwasher Activated gas booster water heater to the control panel on a commercial dishwasher use the connection points labeled BSTR1 and BSTR2 on the booster Only connect a Dishwasher Activated gas booster water heater not a Stand Alone to a dishwasher that has been provided with a properly labeled connection point Refer to the instruction manual for the dishwasher under Gas Booster Water Heater Option to determine if this option is available and what is the proper connection point on the dishwasher Model 1857 uses either a 24 Volt 120 Volt inter connect circuit for Dishwasher Activated boosters depending on the pilot circuit of the dishwasher model it is to be connected with Models IB140 IB235 and 290 use only a 120 Volt inter connect circuit for Dishwasher Activated boosters A Dishwasher Activated gas booster water heater should only be used with a dishwasher that is provided with the capability of connecting the gas booster water heater as an accessory When the gas booster
19. ef Valve for additional drain installation instructions The Temperature and Pressure Relief Valve should be manually operated at least once annually to make sure that the valve mechanism is still functional Use care when operating the relief valve Follow instructions on the tag located on the Temperature and Pressure Relief Valve to avoid contact with hot water discharge and to prevent water damage from operation of the valve Repair or alteration of the Temperature and Pressure Relief Valve in any way is prohibited by national safety standards local codes If the Temperature and Pressure Relief Valve discharges occasionally or periodically this may be due to thermal expansion a closed water supply system Contact the water supplier or the local plumbing inspector regarding how to correct this situation DO NOT plug the relief valve or install a shutoff valve in the discharge drain line 10 SHOWN WITH OPTIONAL WATER HAMMER ARRESTOR Water Shock 180 F to Dishwasher Ball Valve Pressure Regulator 53254 Fig 6 heater is equipped with a pump which circulates water inside the booster heater maintains uniform water temperature in the tank Depending on the distance from the heater to the dishwasher it may be necessary to run empty rack s to purge the supply line if the indicated rinse water temperature is lower than the required 180 F For this reason it is best to loca
20. ermination vent For each additional elbow reduce the total pipe length by 10 feet The minimum length is 2 feet For vertical venting The maximum length of 3 or 4 diameter vent pipe described above should be followed the same requirements for elbows and termination vent apply the minimum length for vertical venting is 5 feet For sidewall venting locate the heater as close as possible to the wall being used The maximum and minimum wall thickness is determined by the wall thimble available from the vent manufacturer Refer to the vent manufacturer s installation instructions When draft hood is used it must be in the same atmospheric pressure zone as the combustion air inlet of the booster water heater Additional requirements when venting through a sidewall The vent terminal shall be located at least three feet above any forced air inlet located within ten feet or at least four feet below four feet horizontally from or one foot above any door window or gravity air inlet into any building It shall also have a minimum horizontal clearance of four feet from electric meters gas meters regulators relief valves or other equipment Theventterminal shall be located notless than seven feet above grade when itis adjacent to public walkways The bottom of the vent terminal shall be located at least twelve inches above grade or ground or the normally expected snow accumulation level The snow level may be higher on walls exposed
21. its do not have an On Off Switch The booster heater starts when the dishwasher power is on PL 53172 Fig 9 16 LUBRICATION The water pump motor and the combustion air blower motor are permanently lubricated and require no other maintenance VENT SYSTEM Annually check the vent system for obstruction Check for signs of deformation in the vent pipes which will be an indication of abnormal conditions in the venting system Refer to the instructions supplied by the vent pipe manufacturer CHECK BURNER FLAME When the burner is operating properly the flame will appear to be orange with a blue tint as you look across the burner This can be observed through the flame observation port with the left side panel removed Fig 9 Inspect the burner through the observation port periodically If areas of the burner are other than described contact your Hobart authorized service office to have the burner inspected for proper operation TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SUGGESTED SOLUTION On Off switch energized No power to heater Check circuit breaker Unit does not operate Check disconnect switch Check water supply Check manual reset switch in unit call Service Vent fan off APS interlock vent fan on Unit energized pump and Blocked vent Remove blockage blower running but burners Gas off Turn gas on are NOT on 17 LIST REPLACEMENT PARTS
22. l Model IB57 Models 140 and 235 Gas Valve Gas Control Knob W NO Gas Valve Model IB290 Gas Con rol Knob Gas Valve Fig 8 WARNING SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF DO NOT TURN OFF OR DISCONNECT THE ELECTRICAL SUPPLY TO THE PUMP SHUT OFF THE GAS SUPPLY AT THE MANUAL GAS CONTROL VALVE 15 booster heater is designed to deliver 180 F water up to the gallons per minute and gallons hour ratings specified in the table on page 4 depending on the incoming water temperature and Booster Heater model and its input BTU Hr Provided the necessary power water gas and vent connections are completed a STAND ALONE unit is started by the activation of the On Off Switch located on the front Fig 9 Provided the necessary power water gas and vent connections are completed the DisuwAsHER AcTIVATED unit will On when the dishwasher power switch is On The Green indicator light is lit and the circulator pump turns on when power to the booster heater is On The blower motor will start after about 6 seconds if the thermostat calls for heat Provided that the operating and safety controls including any vent switches are closed and that the thermostat is calling for heat the Amber indicator light is lit The blower turns on for about 10 seconds providing cl
23. n gas line pipe threads For gas line pipe connections use LocrirE 565 Hobart part 546292 or a flexible sealant suitable for use with Natural and LP Gases The heater and its gas connections must be leak tested before placing the appliance in operation Use soapy water for leak test DO NOT use open flame The heater and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 2 psig 3 5 kPa The heater must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa Dissipate test pressure from the gas supply line before re connecting the heater and its manual shutoff valve to the gas supply line Caution Failure to follow this procedure may damage the gas valve Model IB57 Models 140 and 235 Model IB290 Manual Valve Manual Valve L Valve D 2 D T 4 M Lon m jum AM I Gas Valve Val v Gas Valve Gas Valve Rear Panel Rea
24. not try to repair it Call a qualified service technician Force or attempted repair may result in a fire or explosion Do not use this heater if any part has been under water Immediately call a qualified service technician to inspect the heater and replace any part of the control system and any gas control that has been under water 14 Hot Surface Ignition Using the Robertshaw Gas Valve 1 2 3 4 STOP Read the safety information Turn off all electrical power to the appliance Remove the left side panel This appliance is equipped with an ignition device which automatically lights the burners DO NOT try to light the burners by hand Turn the gas control knob clockwise 4 to the OFF position Wait five 5 minutes to clear out any gas If you then smell gas stop and follow the instructions What To Do If You Smell Gas page 14 If you do not smell gas go to the next step Turn the gas control lever counter clockwise lt gt to the ON position Replace the left side panel Turn on all electric power to the appliance If the appliance will not operate follow the instructions To Turn Off Gas To Heater below and call your service technician or gas supplier To Turn Off Gas To Heater 1 Turn off all the electric power to the heater if service is to be performed Remove the left side panel Push in and turn the gas control lever clockwise to the OFF position Replace the left side pane
25. ny areas adjacent that cannot be closed off does not exceed 20 BTU per hour per cubic foot 6 Termination Tee Termination Tee Vent Hood wa Dish Table or Conveyor Vent Pipe PS SS ANS ANAS NSN NAAN ES 3 to 4 Inch Adapter Required For 235 and 290 Fig 2 Combustible Sidewall Termination Non Combustible Sidewal Termination w Thru Wall Fitting 3 to 4 Inch Adapter Required For 235 and 290 7 PL 53441 Dish Table e di or Conveyor Dishwasher Dishwasher PL 53442 Termination Tee Dish Table or Conveyor Vent Pipe 3 to 4 Inch Adapter Required For 235 and 290 PL 53443 Fig 4 All horizontal runs of the vent pipe shall have a minimum rise of 4 per foot of length and should be supported every 5 feet or less for Canada every 3 feet and at every elbow For horizontal venting of models 57 and IB140 the total length of 3 inch diameter vent pipe can be up to 70 feet with up to four 90 elbows and one termination vent For horizontal venting of models 235 or IB290 the total length of 4 inch diameter vent pipe can be up to 70 feet with up to four 90 elbows and one t
26. r Panel Rear Panel Sediment Trap Sediment Trap Sediment Trap L PS Fig 5 WATER REQUIREMENTS Proper water quality can improve ware washing performance by reducing spotting lowering chemical supply costs enhancing effectiveness of labor and extending equipment life Local water conditions vary from one location to another The recommended proper water treatment for effective and efficient use of this equipment will also vary depending on the local water conditions Ask your municipal water supplier for details about local water specifics prior to installation Recommended water hardness is 4 6 grains of hardness per gallon Chlorides must not exceed 50 parts per million Water hardness above 6 grains per gallon should be treated by a water conditioner water softener or in line treatment Water hardness below 4 grains per gallon also requires a water treatment to reduce corrosion Water treatment has been shown to reduce costs associated with machine cleaning reduce deliming of the dishwasher reduce detergent usage and reduce corrosion of metallic surfaces in the booster water heater and dishwasher Sediment silica chlorides or other dissolved solids may lead to a recommendation for particulate filtration or reverse osmosis treatment If an inspection of the booster reveals lime build up after installation in line water treatment should be considered and if recommended should be installed and used as directed Contact
27. ropane 235 000 BTU Hr Propane 280 000 BTU Hr Propane 140 000 BTU Hr Natural 235 000 BTU Hr Natural FITTING ORIFICE 290 000 BTU Hr Natural VALVE GAS BOOSTER 57 000 BTU Hr Natural Propane VALVE GAS BOOSTER 140 000 amp 235 000 BTU Hr Natural Propane VALVE GAS BOOSTER 290 000 BTU Hr Natural 280 000 BTU Hr Propane FITTING TUBE s x 2 4 MPT STRAIGHT 140 000 amp 235 000 BTU Hr TUBE GAS 140 000 amp 235 000 BTU Hr 18 Components Pump Side continued PART No FP FP FP FP FP 00 FP FP 00 00 FP 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 047 12 012 45 027 22 077 27 012 07 748593 047 12 012 45 748853 748549 084 53 749111 748570 748570 748570 748570 748575 748575 748575 748575 748576 748576 748576 748576 749100 476847 748574 749099 476848 748577 476395 476237 546292 749077 748569 748571 748572 748562 748562 748562 548679 548251 748550 294700 294700 749120 748685 749119 088196 112235 112235 00002 00002 00002 00006 00005 00002 00002 00003 00001 013 1 013 3 006 1 00023 00059
28. s 235 and 290 are Category III positive flue pressure not excessive condensate and flue gas temperature at the heater outlet approximately 530 F The vent outlet on the booster heater is 3 inches in diameter Models 1857 and IB140 require 3 inch minimum vent pipe throughout Models 235 18290 require 4 inch minimum vent pipe the inch adjustable vent pipe elbow and the 3 inch to 4 inch vent pipe adapter provided 235 and IB290 are to be installed at the vent outlet of the booster heater Fig 1 all models sinch per foot minimum incline must be maintained Models 235 amp IB290 Only 3 to 4 Inch Adapter 3 Inch Elbow Temperature and Pressure Relief Valve Fig 1 PL 53440 Vent piping must be one of the types mentioned in this manual and must be properly installed according to the vent pipe manufacturer s instructions Each vent joint must be properly sealed and secured so ACCEPTABLE VENT PIPING it stays in place 57 or 140 1B235 or IB290 MANUFACTURER MODEL eee ee Gn m TERMINATION TERMINATION Part Number Part Number Heat Fab Inc AL 29 4C Tee 7390TEE 7490TEE 38 Haywood St Saf T Vent Stainless Steel Rain Cap 5300C1 5400C1 Greenfield MA 01301 Mitre Straight 7390GC Z Flex US Inc AL 29 4C Tee O2SVSTTX 3 02SVSTTX 4 20 Commerce Park North Z Vent Stainless Steel Rain Cap 02VRSRCX03 02VRSRCX04 Bedford NH 03110
29. s depending on the incoming water temperature Rinse water volume requirements for various commercial dishwasher models and operating rates are available from your authorized Hobart dealer Input Btu hr Input Btu hr Tank Capacity Model Natural Gas Propane U S Gallons Width x Height x Depth inches IB57 57 000 57 000 9 5 25 375 x 30 125 x 19 50 IB140 140 000 140 000 9 5 28 375 32 125 x 22 25 IB235 235 000 235 000 17 0 36 875 32 125 x 22 25 IB290 290 000 280 000 17 0 36 875 32 125 x 22 25 DELIVERY RATES 180 F assuming 80 efficiency Model E Rate Incoming Water Temperature 110 F 120 F 130 F 140 F 150 F 57 000 Gallons per Minute 1 30 1 52 1 82 2 28 3 04 57 Natural Gallons per Hour 78 91 109 137 182 140 000 Gallons per Minute 3 20 3 73 4 48 5 60 7 46 140 Natural or Propane Gallons per Hour 192 224 268 336 448 235 000 Gallons per Minute 5 37 6 27 7 52 9 40 12 54 IB235 Natural or Propane Gallons per Hour 322 376 451 564 752 290 000 Gallons per Minute 6 63 7 74 9 28 11 60 15 47 IB290 Natural Gallons per Hour 398 464 557 696 928 280 000 Gallons per Minute 6 40 7 47 8 96 11 20 14 94 Propane Gallons per Hour 384 448 538 672 896 NOTE For altitudes above 5000 feet contact Hobart Product Service phone 937 332 2525 Warewash Technical Support E INSTALLATI
30. te the booster heater as close as possible to the dishwasher If the booster heater is located more than 10 feet from the dishwasher an additional recirculation system supplied by others may be installed Fig 7 SHOWN WITH OPTIONAL WATER HAMMER ARRESTOR KIT 180 F to Dishwasher X A Water Shock Absorber SUGGESTED PUMP FLOW 2 5 Pressure CONSULT PLUMBER FOR SPECIFIC RECOMMENDATIONS 140 F i Inlet Union 5 7 Ball Valve Pressure Regulator TYPICAL PIPING FOR RECIRCULATION SYSTEM WHEN BOOSTER HEATER IS GREATER THAN 10 FEET FROM DISHWASHER Fig 7 A ELECTRICAL CONNECTIONS WARNING ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND OR OTHER ELECTRICAL CODES WARNING DISCONNECT THE ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH INDICATING THAT THE CIRCUIT IS BEING WORKED ON The electrical power supply requirement for the heater is 120 Volts 60 Hz 1 Phase Minimum conductor ampacity and maximum protective device should be rated 15 Amperes The electrical power for the gas booster water heater must be supplied independent of the dishwasher whether the booster is switched on and off with a manual switch on the Stand Alone unit only or by the dishwasher control circuit on the Dishwasher Activated unit only Properly sized conduit and 14 AWG wire rated for at least 90 C must be used for wiring conn
31. water heater is connected to the vent fan control switch the vent fan is switched on when the gas booster water heater is activated and off when the heater is off Use connections VFC1 and VFC2 on the gas booster water heater if connecting to the vent fan control switch When the actual flow in the flue must be sensed to permit operation of the burner only when the vent system is operating use connections APS1 and APS2 on the gas booster water heater to connect to an Air Pressure Switch When making this connection it is necessary to remove the jumper from 1TB APS1 and 1 52 The air pressure switch is provided by others 12 WARNING ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND OR OTHER LOCAL ELECTRICAL CODES TO_DISHWASHER 120 CONTROL CIRCUIT SERVICE CONNECTION A 1 1S 9 E 4 ON OFF SWITCH COPTION MANUAL RESET 120 VAC BSTR BSTR2 CONNECTIONS FOR 57 000 140 000 235 000 amp 290 000 BTU HR MODELS WITH OR WITHOUT INTEGRATED CONTROLS CIRCUIT IS SENSITIVE TO VOLTAGE POLARITY SIDE OF LINE MUST BE CONNECTED L1 AND NEUTRAL SIDE TO FOR FIELD WIRING CONNECTIONS USE 14 AWG WIRE RATED FOR LEAST 90 C REMOVE JUMPER FROM I ITB 8PSI AND 1 52 SERVICE ON THIS UNIT TO BE PERFORMED QUALIFIED SERVICE TECHNICIAN ONLY IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST REP
32. your Hobart Service office for specific recommendations PLUMBING CONNECTIONS WARNING PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY SAFETY AND PLUMBING CODES The inlet and outlet water connections 7 4 inch NPT The inlet water supplied to the booster heater must be a minimum of 110 F Do not connect to cold water supply Recommended flowing water pressure to the booster heater is 20 psig Minimum is 15 psig maximum is 25 psig If a water pressure regulator is used to regulate the water pressure adjust to maintain 20 psig at the dishwasher A water pressure regulator pressure gauge and water shock absorber are provided by Hobart when ordered in an optional accessory Water Hammer Arrestor Kit Install a suitable water hammer arrester between the booster heater and dishwasher Figs 6 and 7 3 4 inch NPT drain valve is provided underneath the booster heater to allow the tank to be drained if needed during servicing This drain connection may be plumbed to a suitable open floor drain The Temperature and Pressure Relief Valve is located at the rear of the booster heater Install a pipe from the discharge connection on the Temperature and Pressure Relief Valve to a suitable drain or catch pan with drain The discharge connection on the Temperature and Pressure Relief Valve is 3 4 inch on 1857 and IB140 the connection is 1 inch IB235 IB290 Refer to the Tag on the Temperature and Pressure Reli
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