U.S. Boiler Company MPO - IQ Service Instructions Manual Download Page 18

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Figure 8: Baffle Orientation in Flueways

Step a.

Install stainless steel baffles provided in

miscellaneous parts carton as follows, refer to Table

3 and Figure 8:

•

Model MPO-IQ84 - To install flueway baffle in 3

pass on left side of boiler, hold baffle with word

"Left" readable at the top. Slide baffle in flueway

until position tab touches fins on left side of 3

pass flueway. To install flueway baffle in 3

pass

flueway on right side of boiler, hold baffle with

word "Right" readable at the top. Slide baffle in

flueway until position tab touches fins on right

side of 3

pass flueway.

•

Model MPO-IQ115 - To install flueway baffle in

pass on left side of boiler, hold baffle with word

“Left” readable at the top. Slide baffle in flueway

until position tab touches fins on left side of 3

pass flueway. To install flueway baffle in 3

pass

flueway on right side of boiler, hold baffle with

word “Right” readable at the top. Slide baffle in

flueway until position tab touches fins on right

side of 3

pass flueway. To install flueway baffle

in 2

pass on left side of boiler, hold baffle with

word “Left” readable at the top. Slide baffle in

flueway until position tab touches fins on left side

of 3

pass flueway. To install flueway baffle in 2

pass flueway on right side of boiler, hold baffle

with word “Right” readable at the top. Slide

baffle in flueway until position tab touches fins

on right side of 3

pass flueway.

•

Models MPO-IQ147, MPO-IQ189 and MPO-

IQ231 - To install flueway baffle in 2

pass

flueway on left side of boiler, hold baffle with

word "Left" readable at the top. Slide baffle in

flueway until position tab touches fins on right

side of 2

pass flueway. To install flueway baffle

in 2

pass flueway on right side of boiler, hold

baffle with word "Right" readable at the top. Slide

baffle in flueway until position tab touches fins

on left side of 2

pass flueway.

NOTE:

and 3

pass flueway baffle are not

interchangeable.

Close the burner swing door

and securely seal the door

to the boiler front section by reinstalling the hardware and

securing the door using procedure previously outlined in

Paragraph D of this section.

NOTICE

When securing burner swing door make sure door

is drawn-in equally on both sides.

II. PACKAGED BOILER ASSEMBLY - TRIM & CONTROLS (cont'd)

Summary of Contents for MPO - IQ

Page 1: ...ion on boiler provide Boiler Model Number and Serial Number as shown on Rating Label Boiler Model Number MPO IQ Boiler Serial Number Installation Date Heating Contractor Phone Number Address As an ENERGY STAR Partner U S Boiler Company has determined that the MPO IQ boiler meets the ENERGY STAR guidelines for energy efficiency established by the United States Environmental Protection Agency EPA ...

Page 2: ...oes not affect the performance or longevity of a boiler All boilers must be installed in accordance with National State and Local Plumbing Heating and Electrical Codes and the regulations of the serving utilities These Codes and Regulations may differ from this instruction manual Authorities having jurisdiction should be consulted before installations are made In all cases reference should be made...

Page 3: ...r is suitable for installation on combustible flooring Do not install boiler on carpeting Do not tamper with or alter the boiler or controls Inspect flueways at least once a year preferably at the start of the heating season The inside of the combustion chamber the vent system and boiler flueways should be cleaned if soot or scale has accumulated When cleaning this boiler take precaution to avoid ...

Page 4: ...gned to burn No 2 fuel oil only Do not use gasoline crankcase drainings or any oil containing gasoline Never burn garbage or paper in this boiler Do not convert to any solid fuel i e wood coal Do not convert to any gaseous fuel i e natural gas LP All flammable debris rags paper wood scraps etc should be kept clear of the boiler at all times Keep the boiler area clean and free of fire hazards All b...

Page 5: ...tion Card The IQ Control System fully integrates both factory and field installed components simplifying installation and troubleshooting The IQ Control System is designed to efficiently operate the entire boiler system to save energy and installation and setup time while ensuring adequate supply of heat and domestic hot water What s in the crate Content Check List 1 MPO IQ Boiler Assembly on Ship...

Page 6: ...6 Figure 1 MPO IQ84 Thru MPO IQ231 Water Boiler ...

Page 7: ...TE 1 Maximum Working Pressure Water 30 PSI Shipped From Factory Standard 40 PSI Optional 50 PSI Optional Boiler Model No Burner Capacity NET AHRI Ratings AFUE Minimum Chimney Requirements Direct Vent System GPH MBH DOE Heating Capacity MBH Water MBH Water Boiler Round In Dia Rectangle In x In Height Ft Model Vent Connector Dia Inch MPO IQ84 0 60 84 74 64 87 6 8 x 8 15 N A N A MPO IQ115 0 82 115 10...

Page 8: ... IQ189 36 for flueway cleaning MPO IQ231 b Clearance from Jacket Side Panels 19 for burner swing door if opened fully with burner mounted otherwise 1 with b u r n e r removed 12 access clearance to service rear of boiler if other side clearance is less than 12 3 minimum if other side clearance is 12 or larger to access and service rear of boiler c Clearance from Jacket Rear Panel 12 minimum for re...

Page 9: ...combustion may be provided with an optional Fresh Air Accessory Kit ONLY AVAILABLE WITH BECKETT BURNER Metal cover applications P N 611280031 Plastic cover applications P N 102119 01 Refer to Fresh AirAccessory Kit instructions for installation and air intake piping details See Section V for installation details or b Outdoor air may be provided with the use of two permanent openings which communic...

Page 10: ...ercent free area c Louversandgrillesmustbefixedintheopenposition or interlocked with the equipment to open automatically during equipment operation D Direct Vent CONFIGURATIONS requires 1 Beckett NX Burner 2 Direct Vent Conversion Kit 3 Double Wall Flex Oil Vent Pipe FOVP Boiler Model No Beckett NX Oil Burner Part No Direct Vent Conversion Kit Part No FOVP Carton Part No MPO IQ147 103896 03 102130...

Page 11: ...ssary place wooden blocks under front legs before lowering to provide hand clearance Step 7 To lower rear of boiler tilt boiler slightly forward bypushingonsmokeboxcollarorliftpipesprotruding throughrearlegsuntilwoodenblockscanberemoved see Figure 3 Slowly allow the weight of the boiler to tilt backward until rear legs rest on floor Step 8 If wood block was placed under front legs lift pipe handle...

Page 12: ... mounting bracket and set aside Remove mounting bracket and hardware from left side Remove upper jacket front panel retaining screw 5 16 x 1 2 lg Phillip Pan head machine screw from right side of door and re install in vacated upper mounting bracket tapping Do not tighten Move lower jacket panel retaining screw from right side to left tapping Do not tighten Rotate door mounting bracket 180 Insert ...

Page 13: ...13 Figure 4B Top View Burner Swing Door Mounted to Cast Iron Block Assembly Jacket Removed for Clarity II PACKAGED BOILER ASSEMBLY TRIM CONTROLS cont d ...

Page 14: ...to provide an air tight seal as shown in Figure 4C Applying excessive torque will only cause thread damage E INSPECT SWING DOOR INSULATION AND ROPE GASKET 1 Open burner swing door using procedure previously outlined in Paragraph D of this section 2 Inspect fiberglass rope located on the swing door The rope must be evenly distributed around the perimeter of the door groove and cannot bunch or overh...

Page 15: ...hread 1 1 2 NPT x 1 1 2 NPT x 3 4 NPT Teeonto1 1 2 NPTnipple Tightenpipefittingsuntil relief valve orientation is correct for your installation and joints are watertight Note Basedonsystemreturnpipingandaccesstoservice boiler see Figures 1 13A and 13B predetermine if injector piping orientation is to be positioned for vertical horizontal left or horizontal right side return piping as shown in Figu...

Page 16: ...to3 4 NPTtappingonsideoutletoftee Use hex nut portion to tighten valve until water tight 3 Connecting field wiring refer to Figures 7 28A thru 28C Step a Locate the black white and green harness wires labeled 120VPowerSupply insideinternaljunction box see Figure 7 Using wire nuts connect the 120 volt power supply field wires to the harness wires Stepb Locatetheyellowandwhitewireslabeled System Cir...

Page 17: ...lug into receptacle on right side panel see Figure 1 Step c Connect other end of harness into ECOM jack on Oil Primary Step d Secure harness to right side jacket using the two wire clamps located in miscellaneous parts carton 5 Installing stainless steel flueway baffles Baffle requirements differ from model to model see Table 3 NOTE Read caution statement before proceeding II PACKAGED BOILER ASSEM...

Page 18: ...affle in 2nd pass on left side of boiler hold baffle with word Left readable at the top Slide baffle in fluewayuntilpositiontabtouchesfinsonleftside of3rd passflueway Toinstallfluewaybafflein2nd pass flueway on right side of boiler hold baffle with word Right readable at the top Slide baffle in flueway until position tab touches fins on right side of 3rd pass flueway Models MPO IQ147 MPO IQ189 and...

Page 19: ...MBLY TRIM CONTROLS cont d Step e Insert oil burner into the opening of burner swing door Align and engage keyhole slot in burner flange overheadofprotrudingcapscrewinstalledinprevious Step Rotate burner to the right to lock flange behind head of cap screw Step f Align holes and install two 2 remaining cap screws Level burner and fully tighten all three 3 screws Stepg Plugburnerpowercordintopowerou...

Page 20: ...21 01 ____ MPO IQ231 Part 1030711 05 100045 02 100021 01 2 ___ Jacket Carton 4 ____ Control Carton ____ MPO IQ84 115 Part 103069 02 ____ Control Assembly ____ MPO IQ147 Part 103069 03 Part 103857 01 ____ MPO IQ189 Part 103069 04 ____ Jacket Poly Front Cover ____ MPO IQ231 Part 103069 05 Part 102600 06 3 ___ Part Carton ____ MPO IQ Logo Plate ____ MPO IQ84 Part 103112 01 Part 102502 04 ____ MPO IQ1...

Page 21: ...e Cast Iron Section Burner Swing Door Smoke Box Assembly tilt boiler slightly forward by pushing on smokebox or lift pipes protruding thru rear legs until wooden block s can be removed see Figure 11 Slowly allow the weight of boiler to tilt backward until rear legs rest on floor 14 If wood blocks were placed under front legs lift pipe handles remove the blocks and lower front legs to floor Remove ...

Page 22: ...22 Figure 11 Boiler Removal from Skid III UNIT PAK BOILER ASSEMBLY TRIM CONTROLS continued ...

Page 23: ...11 Upon inspection completion lift door and place integral cast hinge pins into door mounting bracket slotted holes Do not close and secure door at this time proceed to installing stainless steel flueway baffles E Flueway Baffle Installation RefertoSection II Paragraph F F Closing Securing Burner Swing Door Refer to Section II Paragraph D G Jacket Rear Panel Installation 1 Locatejacketrearpanel ha...

Page 24: ...Thread the pressure gauge into 1 4 NPT tapping on the front section Tighten with wrench applied to the square shank of the gauge CAUTION Do not apply pressure to gauge case as this may result in inaccurate readings L control panel assembly and harness Installation 1 Locate and remove the Control Panel Assembly for the Control Carton 2 Place Control Panel Assembly on top of Insulation Wrapper 3 Con...

Page 25: ...ts Section JacketAssembly illustration for parts identification 12 Align jacket front cover mounting holes with side panel holesandsecurewithfour 8x ovalsheetmetalscrews from Hardware Bag III UNIT PAK BOILER ASSEMBLY TRIM CONTROLS continued N FIELD ASSEMBLY OF BOILER TRIM AND BURNERS Refer to Section II Paragraph F ...

Page 26: ...ve system noise Boiler Model No Flow Rate Gal Min MPO IQ84 4 5 MPO IQ115 6 0 MPO IQ147 8 0 MPO IQ189 10 0 MPO IQ231 12 0 Table 4 minimum flow rate WARNING Do not operate boiler below minimum volumetric flow rates B CONNECT SYSTEM SUPPLY AND RETURN PIPING TO BOILER See Figures 13Aand 13B Also consultResidentialHydronicHeatingInstallationandDesign I B R Guide 1 If this boiler is used in connection w...

Page 27: ...27 Figure 13A Recommended Water Piping for Circulator Zoned Heating Systems IV WATER Boiler PIPING continued ...

Page 28: ...28 Figure 13B Recommended Water Piping for Zone Valve Zoned Heating Systems IV WATER Boiler PIPING continued ...

Page 29: ...that the LWCO control is installed abovetheboilertoprovidethehighestlevelofprotection However where the LWCO control is approved by the LWCO control manufacturer for installation in a high boilertappingofawaterboiler theuseofthelistedLWCO control is permitted when it is installed according to the LWCO manufacturer s instructions 6 If it is required to perform a long term pressure test of the hydro...

Page 30: ...ndard for Chimneys Fireplaces Vents and Solid Fuel Burning Appliances a Loose Mortar Loose mortar could be an indication of a prior history of condensing flue gases upon the inside walls of the chimney Colder climates are more V NATURAL DRAFT VENTING All Boiler Models susceptibletothiscondition Undernocircumstances shall a chimney of this condition be used until it meets the requirements of NFPA 2...

Page 31: ...31 Figure 15 Recommended Vent Pipe Arrangement and Chimney Requirements Figure 16 Proper and Improper Locations of Draft Regulator V NATURAL DRAFT VENTING continued ...

Page 32: ...t can be generated A lower stack temperature not only reduces the amount of draft that can be created but it also increases the possibility that the flue gases could condense in the chimney connector or stack 2 NFPA31 and CSAB139 04 have information to help the installermakeanappropriatechoiceofventingmaterials In some cases a chimney may have to be lined to create sufficient draft In other cases ...

Page 33: ... BURNER Refer to Section I Paragraph C Steps 5 and 6 for optional air intake piping installation information WARNING Using outdoor air in the middle of winter may result in lower stack temperatures and chimney degradation Any signs of condensate seepage or discoloration at the base of chimney must be remedied immediately per the details outlined in this section Do not reduce size of air intake pip...

Page 34: ...ion air in a single concentric terminal 3 Direct Vent Hood Assembly minimum clearance to combustible material is 0 4 Maximum wall thickness that FDVS vent termination may be installed through is 12 Figure 18 Vent Terminal Location WARNING This venting system must be installed by a qualified installer an individual who has been properly trained or a licensed installer DO NOT locate vent termination...

Page 35: ...determining the location of the venting system termination cutthesquareholeinthewallsizedaccording to L dimension in Table 5 see Figure 19 6 Woodorvinylsidingshouldbecut sothatventhoodbase plate mounts directly on the wallboard to provide stable support If siding thickness exceeds use a spacer bar or board behind the vent hood mounting base plate See Figure 20 a Seal the backside of the vent hood ...

Page 36: ...y Fireplaces Vents and Solid Fuel Burning Appliances latest editions For installations in Canada follow requirements of CSA B139 Installation Code for Oil Burning Equipment latest edition 2 A vent pipe connector designed for positive pressure venting shall be supported for the design and weight of material employed to maintain clearances prevent physicaldamageandseparationofjoints AlljointsMUST BE...

Page 37: ...pliance adapter onto boiler flue outlet collar 4 Using a mallet and a block of wood carefully tap the adapter onto the outlet collar Insure no damage is done to the adapter and the flue outlet collar 5 Assemble supplied adapter clamp halves with 5 16 18boltsandsquarenuts installtheadapter clamp onto the appliance adapter and tighten securely 6 If required install anchoring screws installer provide...

Page 38: ... bead and retainer beadattheendoftheventterminationinnerpipe secondly between the stop bead and retainer bead at the end of the appliance adapter See Figure 25 8 Assemble supplied inner pipe clamp halves with 1 4 20 bolts and square nuts position the inner pipe clamps from the end of inner vent pipe on vent pipe opposite ends 9 Remove any oil and grease from inside of each end of the inner vent pi...

Page 39: ...ket to burner cover mounting plate See Figure 27 5 Procure a 2 ft section of 4 diameter galvanized single wall vent pipe cut off the crimped pipe end below stop bead 6 Insert one end of the vent pipe thru the outside air duct bracket opening and firmly push onto the outside air adapter collar 7 Securethepipetocollarwithatleast 3 sheetmetalscrews installer provided evenly spaced around the collar N...

Page 40: ...fer to the vacuum relief valve manufacturer s instructions for details VI direct venting air intake piping continued 14 Install remainder of air intake piping to Direct Vent Termination air intake collar securing each joint with at least 3 sheet metal screws installer provided evenly spaced 15 Maintain per foot slope in horizontal run to air intake of Direct Vent Termination 16 Support the air int...

Page 41: ... to 1 amps If system tends to overheat above the thermostat s temperature setting reduce heat anticipator setting by 1 or 2 amps If system tends to short cycle without reaching desired room temperature increase heat anticipator setting by 1 or 2 amps WARNING The maximum allowable current for each circulator is 5 amps at 120V AC For circulators with higher amp ratings youmustinstallacirculatorrelay...

Page 42: ...42 Figure 28A Schematic Wiring Diagram VII ELECTRICAL continued ...

Page 43: ...43 Figure 28B Schematic Wiring Diagram Burner Options VII ELECTRICAL continued ...

Page 44: ...44 Figure 28C Ladder Diagram VII ELECTRICAL continued ...

Page 45: ...pe or 3 8 OD coppertubing Coppertubingshallhavea 032 minimum wall thickness WARNING Under no circumstances can copper with sweat style connectors be used NOTICE Some jurisdictions require the use of a fusible shutoff valve at the tank and or the burner In addition some jurisdictions require the use of a fusible electrical interlock with the burner circuit Check your local Codes for special require...

Page 46: ... manual shutoff valve to be located on the return line of a two pipe system Accidental closure of the return line will rupture the oil pump seals Table 7 Two Stage Units 3450 RPM Two Pipe Systems Lift H See Fig 25 Maximum Length of Tubing H R See Figure 3 8 OD Tubing 3 GPH 1 2 OD Tubing 3 GPH 0 93 100 2 85 100 4 77 100 6 69 100 8 69 100 10 52 100 12 44 100 14 36 100 16 27 100 18 76 Table 8 Single ...

Page 47: ...installed as per Figures 13A and 13B to remove air from system when filling a Close full port ball valve in boiler system piping b Isolate all zones by closing zone valves or shut off valves in supply and return of each zone s c Attach a hose to vertical purge valve in boiler system supply piping up stream from the full port ball valve Note Terminate hose in five gallon bucket at a suitable floor ...

Page 48: ...o inches water column w c water gauge in canopy These settings will assure a safe and efficient operating condition If the flame appears stringy instead of a solid fire try another nozzle of the same type Flame should be solid and compact After all adjustments are made recheck for a draft of zero inches water column w c in the canopy Replace plug at completion See Tables 15A thru 15C and 16 at rea...

Page 49: ...ee times The reset count returns to zero each time a call for heat is successfully completed e T T Jumper All R7284 models have internal TT Configured ON parameters set to ON The R7284 has an LCD display and simply displays lockout and flame status on it f Cad Cell Resistance Check For proper operation it is important that the cad cell resistance is below 1600 ohms Cad Cell Resistance ohms is meas...

Page 50: ...trol enters Restricted Mode Ignition and motor stop and oil valves closes d Power Failure Check After Flame is established turn the power off to the control burner The burner should shut down safely When power is restored a normal ignition sequence should be started WARNING Cad Cell Jumper must be removed after this check K CHECK HIGH LIMIT 1 Adjust system thermostat s to highest setting 2 Allow b...

Page 51: ... Long sleeved loose fitting clothing 3 Gloves 4 Eye Protection Take steps to assure adequate ventilation Wash all exposed body areas gently with soap and water after contact Wash work clothes separately from other laundry and rinse washing machine after use to avoid contaminating other clothes Discard used RCF components by sealing in an airtight plastic bag RCF and crystalline silica are not clas...

Page 52: ...ll restart 8 On burner start if the cad cell does not see flame during Status Code Displayed in STA Mode STA Status Description 1 Standby burner off circulator off No call for Heat Detected 1 Standby burner off circulator on Either condition is true a Call for heat detected and boiler temperature higher than operating setpoint b Call for heat is detected and boiler temperature higher than start te...

Page 53: ... your heating system The Option Panel provides an easy and convenientmeansto plug in anAuxiliaryHighLimit Low Water Cut off and or Outdoor Reset function For operating instructions refer to the instructions supplied with those cards E Using the Optional LCD Display Kit P N 102728 01 The LCD Display is an easy to use touch screen type display that allows a technician to monitor and adjust the Boile...

Page 54: ...e energy Refer to Appendix A for additional information 2 Differential HDF The Boiler Control is factory programmed with a Differential of 15 F The Differential is the number of degrees the boiler temperature must decrease below the Operating Setpoint before the boiler can restart The differential is adjustable between 10 and 30 F 3 Circulator Overrun Time OR_ Circulator Overrun Time also called c...

Page 55: ... the DHW Circulator When there is a DHW call for heat the System Circulator is forced off the DHW Circulator terminal is energized and the circulator pre purge time delay control logic is bypassed to allow the boiler to fire without delay When DHW demand ends the System Circulator force off is removed the circulator can respond normally and the DHW Circulator is de energized The DHW call for heat ...

Page 56: ...s started and the ZC and C1 output terminals are de energized When the ZR terminal is de energized boiler water temperature is above setpoint the call for heat is ended and the C1 terminal is released to operation and the ZC terminal is energized An External Low Limit Request is detected by sensing a voltage on the ZR terminal Refer to Table 13 Table 13 External low limit parameter zc_ ell Call fo...

Page 57: ...moststubborndepositsmayberemoved from the probe by using a diluted amount 3 parts of water to 1 part of phosphoric acid H2 PO4 CAUTION Exercise caution when handling phosphoric acid and follow the instruction label on its container h Clean the pipe threads of the probe to remove old hardened pipe dope and other foreign matter i Apply a moderate amount of good quality pipe dope to the pipe threads ...

Page 58: ...als salts and oxygen When the fresh cool make up water is heated in the boiler the minerals fall out as sediment the salts coat the inside of the boiler and the oxygen escapes as a gas The accumulation of sediment eventually isolates the water from contacting the cast iron When this happens IMPORTANT IF DURING NORMAL OPERATION IT ISNECESSARY TO ADD MORE WATER THAN INDICATED BELOW CONSULT A QUALIFI...

Page 59: ...d smoke box B Clean the Combustion Chamber Use a wire or fiber bristle brush to clean the surfaces of the combustion chamber Vacuum all of the loose debris in the bottom of the combustion chamber C AFTER CLEANING vacuum all remaining debris as necessary Inspect burner swing door insulation and rope gasket for signs of damage If damaged replace as needed D REASSEMBLE BOILER CAUTION Do not start the...

Page 60: ...ey The interior of the chimney flue must be inspected and cleaned before the start of the heating season and should be inspected periodically throughout the heating season for any obstructions A clean and unobstructed chimney flue is necessary to allow noxious fumes that could cause injury or loss of life to vent safely and will contribute toward maintaining the boiler s efficiency XII BOILER Clea...

Page 61: ...moke and unburned fuel to pass out of the combustion chamber and clog the flueways of the boiler 8 COLD OIL If the oil temperature approaching the fuel pump is 40 F or lower poor combustion or delayed ignition may result Cold oil is harder to atomize at the nozzle Thus the spray droplets get larger and the flame shape gets longer An outside fuel tank that is XIII TROUBLE SHOOTING above grade or ha...

Page 62: ...losed Note The Safety Monitoring Circuit SMC is designed to provide lockout in the event of a stuck or welded motor relay C IQ OIL BOILER CONTROL When a problem occurs with the boiler operation the IQ ControlSystemeasilyprovidesspecific valuableinformation to help resolve the issue quickly The display on the Boiler Control should be the first place to check see Figure 36 1 Error Code Err IS NOT di...

Page 63: ...ace control if problem persists Err 8 Manual Reset Lockout resettable Set if Err 4 was invoked four times in a row Check wiring and clear Lockout by pressing all three user keys for 30 seconds XIII TROUBLE SHOOTING continued E Use BOILER Control Display and ErP Numbers To Direct TroubleShootinG If the Boiler Control detects an error it will flash boiler control error or ErP external error followed...

Page 64: ...fuel supply lines and filter for obstructions ErP 10 No Ignition Check Ignition Transformer The burner was not lit and spark was not detected Check the electrodes spring contacts or high voltage wires and ignition transformer for proper operation If spark ignition is functioning acceptably proceed to No Ignition corrective action ErP 18 Internal Error Electronics Failure The Erp 18 display may ind...

Page 65: ...wiring ErP 84 LWCO Option Card Low Water Event Low water level Limit has caused the boiler to shutdown Make sure that the water level has reached the probe Limit will re close automatically after water level is restored ErP 89 Outdoor Air Reset Option Card Communications Error Loose wire between the Option Panel and Boiler Control or control failure ErP 91 Communication Error Communications error ...

Page 66: ...t Water DHW Priority Forcing Circulator Off When there is a DHW heat request wired to the boiler control s ZR terminal the System Circulator will be forced off for the duration of the DHW heat request When the DHW heat request ends the System Circulator force off is removed the circulator can respond normally When the Priority Time Parameter is set to the System Circulator is not forced off for a ...

Page 67: ...Check fuel lines and filter are free of obstructions Check fuel lines are fully purged of air Use the pump priming feature to purge the system of air Check that the burner motor is spinning and the pump is generating adequate pressure Check operation of fuel valve 2 Nozzle Clogged Check the condition of the nozzle and replace if necessary 3 No Spark Check the electrodes spring contacts and high vo...

Page 68: ...einstall card If problem persists replace card Err 5 Limit Output OFF in ON State Check limit string wiring replace the Option Panel Err 6 Incorrect Wiring Check boiler wiring Err 7 Internal Option Panel Error Replace the Option Panel Err 8 Limit Output ON in OFF State Check limit string wiring replace the Option Panel Err 9 Hard Lockout Due to Repeated Err 8 Check limit string wiring replace the ...

Page 69: ... Company Wholesale distributor Should you require assistance in locating a U S Boiler Company Distributor in your area or have questions regarding the availability of U S Boiler Company products or repair parts please contact U S Boiler Company Customer Service at 717 481 8400 or Fax 717 481 8408 ...

Page 70: ...70 Bare Boiler Assembly XIV Repair Parts continued ...

Page 71: ... Assembly 102417 01 1 1 1 1 102417 02 1 1K Cast Iron Burner Swing Door Only 102421 01 1 1 1 1 1 1L Burner Swing Door Insulation Less Pockets 100039 01 1 1 1 1 Burner Swing Door Insulation With Pockets 100039 02 1 1M 1 2 Dia Rope Gasket Burner Swing Door 102022 01 1 1 1 1 1 1N 1 8 Dia Rope Gasket Observation Port 100096 01 1 1 1 1 1 1P Observation Port Cover 100015 01 1 1 1 1 1 1Q 5 16 18 x 5 8 Lg ...

Page 72: ...72 Jacket Assembly XIV Repair Parts continued ...

Page 73: ...ron Block Assembly 100016 03 1 5 Section Cast Iron Block Assembly 100016 04 1 2M Jacket Right Side Panel Assembly No Insulation Required 2 Section Boiler 103049 02 1 1 3 Section Boiler 103049 03 1 4 Section Boiler 103049 04 1 5 Section Boiler 103049 05 1 2N Jacket Left Side Panel Assembly No Insulation Required 2 Section Boiler 103048 02 1 1 3 Section Boiler 103048 03 1 4 Section Boiler 103048 04 ...

Page 74: ...74 MPO IQ84 Thru MPO IQ231 Water Boilers Trim and Controls XIV Repair Parts continued ...

Page 75: ...al 103880 01 1 1 1 1 1 3C Stainless Steel Third Pass Flueway Baffle 100081 01 2 2 3D Stainless Steel Second Pass Flueway Baffle 100042 01 2 2 2 102066 01 2 3E Circulator w Gaskets Taco 007 8056170 1 1 1 1 1 Bell Gossett NRF22 8056174 Grundfos UP15 42F 8056173 3F Circulator Flange 1 1 2 NPT 806602014 2 2 2 2 2 3G Cap Screw Hex Head 7 16 14 x 1 1 2 Lg 80861301 4 4 4 4 4 3H Hex Nut 7 16 14 80860406 4...

Page 76: ... 1 4B IQ Option Control Panel 102291 01 1 1 1 1 1 4C Line Voltage Harness 103058 02 1 1 1 1 1 4D Low Voltage Harness 103059 03 1 1 1 1 1 4E Burner ECOM Harness 103060 02 1 1 1 1 1 4F Transformer 102516 01 1 1 1 1 1 Not Shown Limit Rated Temperature Sensor 12 Length Honeywell 50001464 001 103195 01 1 1 1 1 1 XIV Repair Parts continued ...

Page 77: ...leeve Assembly FDVS 5 100236 02 2 2 Cover Sleeve Assembly FDVS 6 100236 03 2 5E Cover Ring Assembly FDVS 5 100237 02 2 2 Cover Ring Assembly FDVS 6 100237 03 2 5F Inner Pipe Clamp FDVS 5 Half 100238 02 4 4 Inner Pipe Clamp FDVS 6 Half 100238 03 4 6 FLEX OIL VENT PIPE 6A 5 Dia x 5 ft FOVP 505 100211 02 1 1 5 Dia x 10 ft FOVP 510 100212 02 5 Dia x 15 ft FOVP 515 100213 02 5 Dia x 20 ft FOVP 520 1002...

Page 78: ...78 Beckett AFG Burner XIV Repair Parts continued ...

Page 79: ...4219 4219 4219 4219 Electrode Insulator Assembly 5780 5780 5780 5780 5780 Spider Spacer Assembly 5503 5503 5503 5503 5503 Escutcheon Plate 3493 3493 3493 5941 5941 Adjusting Plate Assembly 5941 5941 Head 51895 51895 5912 5913G 5913G Head Screws 4221 4221 4221 4221 4221 Flange Gasket 32388 32388 32388 32388 32388 AFG Housing 5874 5874 5874 5874 5874 Motor 21805 21805 21805 21805 21805 Nozzle Adapte...

Page 80: ...80 Beckett NX Burner XIV Repair Parts continued ...

Page 81: ...or Kit 51811U 10 Fuel Unit Single Stage A2EA6520N621L 2184404U Fuel Unit Two Stage 51975U Mounting Screws 1 4 20 x 7 8 4189 11a Gasket Igniter Baseplate 51942U 11b Gasket Igniter Baseplate Hinge 11c Gasket Wiring 11d Gasket Rear Access Door 15 Igniter Electronic 51771U 16 Inlet Air Box 1010U 18 Inlet Air Adapter Outside Air Kit 1014U 19 Nozzle Line Electrode and Head Assembly Specify 20 Motor 2180...

Page 82: ...ine Blvd Mississauga Ontario L5N 6H6 Telephone 905 542 0303 Facsimile 905 542 1525 Toll Free 800 387 3898 For replacement Riello oil burner parts contact your wholesaler or the burner manufacturer CARLIN OIL BURNER PART NUMBERS FOR MPO IQ SERIES BOILERS NOTE When ordering parts always give the serial and model numbers shown on the boiler and burner Refer to Installation and Operating Instructions ...

Page 83: ...to settings shown above during burner start up Table 15A Beckett AFG burner specifications chimney vent Boiler Model Burner Input GPH Burner Model Nozzle Air Gate setting Turbulator setting Pump Pressure PSI Combustion Head Insertion Depth Inch Approx Shipped CO2 Baffle Location pass Approx Stack Temp Increase Without Baffles F 2 Approx Breech Pressure w c 3 Baffles IN Approx Overfire Pressure w c...

Page 84: ...preset single stage fuel pump to settings shown in table above Two stage fuel pump is factory set at 140 PSI and must be readjusted to settings shown above during burner start up Table 15C CARLIN EZ burner specifications chimney vent Table 16 Beckett NX Burner SPECIFICATIONS direct vent Boiler Model Burner Input GPH Head Air Adjustment setting Nozzle Pump Pressure PSI Approx Shipped CO2 Baffle Loc...

Page 85: ...also be used to read status and make adjustments Error codes can be displayed on EnviraCOM enabled programmable thermostat Built in diagnostics U S Boiler Company factory engineered and tested as part of a complete system LED display provides the following information Boiler Status Standby pre purge post purge trial for ignition running etc Diagnostics CAD cell resistance run time hours and cycle ...

Page 86: ...ler water temperature that will heat the home on the home s design day This adjustment typically depends on the type and quantity radiation heating element installed in the home Major Features Selectable DHWP Selectable adjustable DHWP protection Selectable adjustable boost feature Simple adjustment of reset curve Kit Includes Outdoor Reset IQ Option Card Outdoor temperature sensor Instructions IQ...

Page 87: ...ccess Display will turn red and flash in the event of a boiler error or lock out Display features full text explanations of all features and settings as well as help screens with diagnostics and troubleshooting information 3 5 LCD Touch Screen Display P N 102728 01 Kit Includes 3 5 Multi color LCD touch screen Display software Enviracom gateway Wiring harness connectors Mounting bracket Instructio...

Page 88: ...nsor 36 inch length 102296 01 Limit Rated Temperature Sensor 48 inch length 102728 01 IQ LCD Display Kit Boiler Mounted STN Monochrome White Red backlight 5Vdc Power Supply RS422 RS485 Communication Pure Black Bezel with Gateway Wire Harness Mounting Bracket Logo Plate and Instructions 102725 01 IQ LCD Display Boiler Mounted STN Monochrome White Red backlight 5Vdc Power Supply RS422 RS485 Communic...

Page 89: ...tt shown Section III Unit Pak Boiler Assembly Trim Controls Figure 10 20 MPO IQ Unit Pak Boiler Shipment Contents outside container removed Figure 11 22 Boiler Removal from Skid Figure 12 25 Immersion Well Probe Insertion Section IV Water Boiler Piping Figure 13A 27 Recommended Water Piping for Circulator Zoned Heating Systems Figure 13B 28 Recommended Water Piping for Zone Valve Zoned Heating Sys...

Page 90: ...ingle Pipe Oil Line Figure 30 46 Two Pipe Oil Lines Section IX System Start Up Figure 31 49 R7284 Terminals Display and Reset Button Figure 32 50 Cad Cell Location Section X Operating Figure 33 52 Boiler Control Option Panel Orientations Figure 34 53 Boiler Control Key Function Orientation Section XII Boiler Cleaning Figure 35 60 Cleaning of Boiler Flueways Figure 36 62 Boiler Control User Interfa...

Page 91: ...2 Sequence of Operation Table 10 54 Circulator Pre purge Time Example Parameter PP_ 2 minutes Table 11A 55 Domestic Hot Water Demand Parameter ZC_ DH Table 11B 55 Domestic Hot Water Demand Parameter ZC_ DH Outdoor Air Reset Option Card Installed Table 12 55 Zone Request Parameter zc_ zr Table 13 56 External low limit parameter zc_ ell Section XIII Trouble Shooting Table 14A 63 Boiler Control Error...

Page 92: ...92 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net ...

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