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Weil-McLain UO-3 CV manual

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Table of contents for the manual

  • Page 1

    R02 01/09[...]

  • Page 2

    6104BAFG R05 Page 1 RESIDENTIAL BURNERS Potential for Fire, Smoke and Asphyxiation Hazards T o the Homeowner or Equipment Owner: Please read and carefully follow all instructions provided in this manual regarding your responsibilities in caring for your heating equipment. Contact a professional, quali fi ed service agency for installation, start-u[...]

  • Page 3

    Page 2 6104BAFG R0 6 T able of Contents Hazard Def nitions and Owner ’ s Information ........................................................................................ 3 Information T o Be Used Only By Qualif ed Service T echnicians General Information .........................................................................................[...]

  • Page 4

    6104BAFG R0 6 Page 3 NO TICE This manual contains information that applies to both AF and AFG burners. These burners may appear to be basically identical, but there are differences in design and performance. Please review the comparison chart below: Feature AF AFG Static Pressure Capability Conventional - Low range Enhanced - Medium range Blower Wh[...]

  • Page 5

    Page 4 6104BAFG R0 6 Do NOT Alter the Original Burner Design Maintain the design to its original con fi guration. Only use parts speci fi ed for AF or AFG Burners Do NOT remove the air guide from the AFG chassis. Do NOT use ‘M’ Series air tube combinations on AF Burn- ers. Never try to convert an AF to an AFG or vice versa Any design alterati[...]

  • Page 6

    6104BAFG R0 6 Page 5 General Speci fi cations Please read and understand the manual supplied with this equipment. This equipment must be installed, ad- justed and put into operation only by a quali fi ed individu- al or service agency that is: Licensed or certi fi ed to install and provide tech- nical service to oil heating systems. Experienced [...]

  • Page 7

    Page 6 6104BAFG R0 6 Carefully inspect the chimney or exhaust vent system. Make sure it is properly sized and in good work- ing condition. Follow the instructions supplied by the appliance manufacturer . The installation must strictly comply with all ap- plicable codes, authorities having jurisdiction and the latest revision of the National Fire Pr[...]

  • Page 8

    6104BAFG R0 6 Page 7 Inspect/Prepar e Installation Site Combustion air supply The burner cannot properly burn the fuel if it is not supplied with a reliable combustion air source. Follow the guidelines in the latest editions of the NFP A 31 and CSA-B139 regarding providing ad- equate air for combustion and ventilation. y y Failure to provide adequa[...]

  • Page 9

    Page 8 6104BAFG R0 6 T able 4. AFG Reduced Firing Rates (with LFRB) Burner head type Low Firing Rate Baf fl e installed F0 up to 0.65 gph F3 or L1 up to 0.85 gph F4 or F6 up to 0.90 gph V1 up to 1.00 gph Prepar e the Bur ner Low Firing Rate Baff e The AFG Low Firing Rate Baf fl e (LFRB) reduces the air fl ow and pressure. The LFRB is sometimes u[...]

  • Page 10

    6104BAFG R0 6 Page 9 If the nozzle is already installed, remove the noz- zle line assembly to verify that the nozzle size and spray pattern are correct for the application (per ap- pliance manufacturer ’s information). V erify that the electrode tip settings comply with Figure 3. If the nozzle is not installed, obtain a nozzle from the manufactur[...]

  • Page 11

    Page 10 6104BAFG R0 6 1-3/8” 1-1/8” Check/Adjust ‘Z’ Dimension - ‘F’ heads 1. The important ‘Z’ dimension is the distance from the face of the nozzle to the fl at face of the head (or heat shield, if applicable). This dis- tance for F heads is 1- ⅛ ” (1- ⅜ ” if the air tube has a heat shield). The “Z” dimension is facto[...]

  • Page 12

    6104BAFG R0 6 Page 1 1 Figure 5. Check/Adjust ‘Z’ Dimension - L1 & L2 Heads Figure 6. Check/Adjust ‘Z’ Dimension - V1 Heads V1 Adjusting Plate Setting AFG with V1 Head Burner Firing Rates 0 0.75-1.00 1 1.00-1.50 2 1.50-1.75 3 1.75-2.00 4 2.00-2.25 5 2.25-2.50 6 2.50-2.75 T able for initial adjusting plate settings for V1 Head L1/L2 head[...]

  • Page 13

    Page 12 6104BAFG R0 6 Installing the Oil T ank and Supply System Fuel supply level with or above burner – SK8745 Figure 7. – Mounting Burner in Appliance T ilt down 2 o If space between burner air tube and opening exceeds 1/2 inch, pack burner opening with ce- ramic fiber refractory . Figure 8. – Inside T ank Gravity Feed System Figure 9. –[...]

  • Page 14

    6104BAFG R0 6 Page 13 Disconnect electrical power before installing or servicing the burner . Provide ground wiring to the burner , metal con- trol enclosures and accessories. (This may also be required to aid proper control system opera- tion.) Perform all wiring in compliance with the Na- tional Electrical Code ANSI/NFP A 70 (Canada CSA C22.1) y [...]

  • Page 15

    Page 14 6104BAFG R0 6 GeniSys Model 7505 Control W iring Display Module: For programming and diagnostics Alarm Module: For adding isolated low voltage alarm contacts to the base control. See Alarm Module Instructions for speci fi cations. Figure 10. The control can malfunction if it gets wet, leading to accumulation of oil or explosive oil vapors.[...]

  • Page 16

    6104BAFG R0 6 Page 15 6. Run : The fl ame is sustained until the call for heat is satis fi ed. The burner is then sent to Motor-Off Delay , if applicable, or it is shut down and sent to Standby . 7. Recycle : If the fl ame is lost while the burner is fi ring, the control shuts down the burner , enters a 60 second recycle delay , and repeats the[...]

  • Page 17

    Page 16 6104BAFG R05 Figure 1 1a. – Interrupted ignition, valve-on delay only (no motor-off delay) Figure 1 1b. – Interrupted ignition, valve-on delay and motor-off delay SAFETY AND OPERA TING LIMITS LIMIT L1 L2 (VL V) VA LV E L2 MOTOR L2 (MTR) L2 (IGN) IGNITER CAD CELL MOTOR IGNITER W R 80 70 60 50 50 70 80 60 OIL V AL VE CAD CELL THERMOST A T[...]

  • Page 18

    6104BAFG R0  Page 17 61351 7. RECYCLE. If the fl ame is lost while the burner is fi ring, the control shuts down the burner , enters a 60 second recycle delay , and then repeats the above ignition sequence. If fl ame is lost three times in a row , the control locks out to prevent cycling with repetitious fl ame loss due to poor combustion. 8[...]

  • Page 19

    Page 18 6104BAFG R0  Make connections to the control’s terminals as shown in Figures 1 1a and 11 b . Refer to the label on the un- derside of the control for wiring details. Note: Motor-off delay on a 7505P will be disabled if the safety and operating limits as shown in Figures 1 1a and 1 1b interrupt power to the control terminal L1. Connect [...]

  • Page 20

    6104BAFG R0  Page 19 Startup / Checkout If the burner or control fails any of the following tests, recheck control wiring. If the burner or control still fails any tests, replace the control. Check Safety Features Safe Start Check Place a jumper across the cad cell terminals. Refer to the steps for “Start up burner/set combustion” and have t[...]

  • Page 21

    Page 20 6104BAFG R0  Step 4: Recheck smoke level. It should be Zero. This procedure provides a margin of reserve air to accommodate variable conditions. If the draft level has changed, recheck the smoke and CO 2 levels and readjust the burner if necessary Once combustion is set, tighten all fasteners on air band, air shutter and head adjusting p[...]

  • Page 22

    6104BAFG R0  Page 21 Figure 12. Blower wheel assembly SK9190 Use a Feeler Gauge to set the gap to; AF = 0.125 +1/64 inch AFG = 0.030 +1/64 inch Replace the blower wheel: T urn off all power to the burner before servic- ing. Disconnect the burner motor wires. Remove the bolts securing the motor to the burner housing. Remove the motor and blower w[...]

  • Page 23

    21 23 24 6[...]

  • Page 24

    6104BAFG R0 6 Page 23 # Part No. Description 1 Burner Housing Assembly 2 Specify* Air Band - Specify # of slots 3 Specify* Air Shutter - Specify # of slots 4 21807U V alve Cordset Not Shown 21887U PD Timer Delay Cordset 5 2184404U CleanCut Pump 6 5394 Copper Oil Line - 8” 7 3666 Splined Nut 8 3493 Escutcheon (F & L1/L2 heads) 9 2139 Hole Plug[...]

  • Page 25

    Page 24 6104BAFG R0 6 Limited WARRANTY For Residential, Commercial and Specialty Burners The R. W. BECKETT CORPORATION (“Beckett”) warrants to persons who purchase its Beckett burners from Beckett for resale or for incorporation into a product for resale (“Customers”) that its equipment is free from defects in material and workmanship under[...]