Boiler Ratings and Capacities FIG. 1 - INDOOR BOILERS BURNER TYPE AFG - OIL CF375 - OIL AFG W/AIR INTAKE BOOT G2T - GAS RIELLO 40 SERIES - OIL X 11½ 14 18 13½ 167 /8 Y 8½ 11 15 10½ 137/16 INDOOR OIL-FIRED HOT WATER BOILERS MODELS LESS TANKLESS COIL M ODEL PFO-3 PFO-4 PFO-5 PFO-7 PFO-9 RECOM M ENDED FIRING RATES GPH Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum .45 .90 .60 1.35 .75 1.70 1.05 2.35 1.35 3.
FIG. 2 - WEATHERPROOF BOILERS WEATHERPROOF OIL BOILERS SPACE HEATERS LESS COIL MODEL PFO-3T2W PFO-6T2W PFO-7TT2W PFO-8T2W RECOMMENDED FIRING RATES GPH HEATING CAPACITY MBH NET I=B=R RATING MBH ANNUAL FUEL UTILIZATION EFFICIENCY% STEADY STATE EFFICIENCY % Minimum .50 Note 1 59 Note 2 51 Note 3 82.9 88.40 Maximum 1.10 123 107 78.2 83.77 NO. SEC. MULTI-PASS COIL LENGTH "A" DIMENSION 3 One 28 / " 6 One 37 / " 7 Two 44 / " 1 Minimum .95 112 97 82.8 88.25 Maximum 2.
Fresh Air for Combustion - Chimney Vented Boilers 2. When communicating with the outdoors through vertical ducts, each opening shall have a minimum free area of one square inch per 4,000 Btu per hour of total input rating of all equipment in the enclosure. WARNING Be sure to provide enough fresh air for combustion. Enough air ensures proper combustion and assures that no hazard will develop due to the lack of oxygen. NOTE You must provide for enough fresh air to assure proper combustion.
Oil Burner and Controls Start-Up and Adjustment INDOOR CHIMNEY VENTED BOILERS 5. If Beckett AFG burner is to be fired at less than 1.00 gph, it is possible that a low firing rate baffle will be required. For firing rates not specified on page 40, see chart below on which an x indicates that a baffle is necessary. See also instruction sheet with baffle in burner carton. 6. Using three acorn nuts, studs and washers from hardware package, fasten burner to mounting plate. 7.
With all high efficiency boilers, care must be taken to minimize condensation. Therefore, cold standby is not recommended and may be used only with a piping, bypass as shown on Figure 12. This requires a change in control wiring. Please contact factory prior to making that change. High Limit Set Point .............. 180°F Low Limit Set Point ............... 160°F Differential ............................... 20°F These settings may be altered based on the heating system response.
ANTIFREEZE WATER VOLUMES OF PF SERIES BOILERS 1. Antifreeze added to boilers must be non-toxic, and must be of a type. specifically intended for use in closed hydronic heating systems. Under no circumstances should automotive antifreeze be used. MODEL NO. 2. Use of antifreeze in any boiler may reduce capacity by 10% or more and increase fuel consumption. Tankless coil performance will fall as concentration of antifreeze is increased. 3.
35 Á + : ² + : ² % ² $ ² ² ² Á ² % ² ² Á $ ² 12 $ 02'(/ .
Repair Parts BOILER CONTROLS AND PIPING KEY NO. PART NO. DESCRIPTION 1 1 1 1 1 1 2 3 3 4 4 5 6 7 8 9 9 10 10 11 11 12 † † † † † † 146-19-201 BN08901 1050006 146-19-011 146-19-202 146-30-250 146-62-201 CI-001.03 146-26-062 146-26-043 146-26-063 1260006 1060002 146-22-011 146-07-202 146-07-012 146-07-206 151-00-01 151-00-02 146-07-044 1310005 146-22-000 146-93-204 146-30-020 146-93-201 1395005 146-06-020 1460001 Beckett AFG Standard Oil Burner (2.00 gph or less) Beckett CF375 Standard Oil Burner (2.
SUGGESTED NOZZLES AND SETTINGS FOR BECKETT AFG AND CF375 OIL BURNER SERIES MODEL RATE NOZZLE HEAD-ADJ. LOW FIRE BAFFLE AIR SHUTTER AIR BAND OIL BURNER DPFO-3 .65 .60-80°A F 0 - 1 1/8 Yes 10 1 AFG .75 .65-70°A F 0 - 1 1/8 No 10 0 AFG .90 .75-80°B F 3 - 1 1/8 No 10 0 AFG .65 .60-80°A F 0 - 1 1/8 Yes 10 1 AFG .90 .75-80°A F 3 - 1 1/8 No 10 0 AFG 1.35 1.20-80°B F 6 - 1 1/8 No 10 2 AFG .75 .65-80°A F 3 - 1 1/8 Yes 10 1 AFG 1.10 1.
14683825 Rev.
