Instruction/ maintenance manual of the product CG15 Beckett
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COMMERCIAL PRODUCT S GAS -FIRED Fire, Explosion and Asphyxiation Hazards Failure to follow these instructions exactly could lead to fi re or explosion and result in death, severe personal injury or property damage. Do not store or use gasoline or other fl ammable vapors and liquids in the vicinity of this or any other appliance.
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3 CG15, CG25, CG50 Burner Manual Contents General Information .................................................... 4 Hazard De fi nitions ......................................................................... 4 Professional Installer ’s Responsibility .
4 Hazard De fi nitions Gener al Inf or ma tion Indicates a hazardous situation which, if not avoided, will result in death or serious injury . Used with the safety alert symbol, indicates a hazardous situation, which, if not avoided, may result in minor or moderate injury .
5 CG15, CG25, CG50 Burner Manual Pr e-installa tion Chec klist Indoor Installation Combustion Air Supply The burner requires combustion air and ventilation air for reliable operation. Assure that the building and/or combustion air openings comply with the latest edition of the National Fuel Gas Code ANSI Z223.
6 CG15 CG25 CG50 Input Firing Range † : High Fire (Max.) High Fire (Min.) Low Fire (Max.) Low Fire (Min.) USA Canada USA Canada USA Canada 1,500 MBH 800 MBH 560 MBH 350 MBH 1,370 MBH 800 MBH 560 MBH.
7 CG15, CG25, CG50 Burner Manual Electrical Supply Check the nameplate on the burner to verify that the power connections available are correct for the burner . Refer to Figure 1 . All power must be supplied through fused disconnect switches and comply with the latest edition of National Electric Code NFP A 70 (Canada CSA C22.
8 Figure 3A - Maximum Capacity (at 3% O 2 ) vs Furnace Pressure - CG15, 60Hz. Figure 3B - Maximum Capacity (at 3% O 2 ) vs Furnace Pressure - CG25, 60Hz.
9 CG15, CG25, CG50 Burner Manual Figure 4 - Burner Dimensions Figure 5 - Panel and Modulating V alve Dimensions Model Dim. A Dim. B Dim. C Dim. D Dim. E Dim. F Dim. G Dim. H O.D. Pipe Thread CG15 20.8 9.4 32.7 13.7 5.2 18.4 6.2 10.8 5.6 1-1/4 NPT CG25 20.
10 Mount the burner to the appliance. The burner speci fi ed for packaged equipment will have a fl ange welded for the required insertion. Follow the appliance manufacturer ’s instructions for mounting.
11 CG15, CG25, CG50 Burner Manual Figure 7 - T ypical Gas Piping Layout Gas T rains to Furnace Pressure Drop curves of Figures 14A, 14B, and 14C are correct for both propane and natural gas. That is also why a gas train adjusted for the burner ’s natural gas requirements will be correctly adjusted for its propane requirements.
12 Schedule 40 metallic pipe with 0.50 psi or less inlet pressure and 0.30” W .C. pressure drop Maximum capacity in cubic feet of gas per hour (CFH). Natural gas with 0.60 speci fi c gravity . Pipe size (inches) IPS Pipe length (feet) 0.75” 1.0” 1.
13 CG15, CG25, CG50 Burner Manual Figure 8A - UL Gas Train - High/Low and Low Fire Start Figure 8B - UL Gas T rain - Modulating ABBREV . HGPS LGPS MSC ML TC MV SSOV1 SSOV2 TC TP U 2PRSSOV ITEM DESCRIP.
14 W ir e the Bur ner Install the burner and all wiring in accordance with the National Electric Code ANSI/NFP A 70 (Canada CSA C22.1) and all applicable codes and requirements. Wire the burner in compliance with all instructions and diagrams provided by the appliance manufacturer .
15 CG15, CG25, CG50 Burner Manual Figure 9A - T ypical Wiring Using Model RM7897C for High/Low Control (For Reference Only) continuing to detect a fl ame, the burner will operate in the RUN mode until the load demand is satis fi ed or a limit opens.
16 Figure 9B - T ypical Wiring Using Model RM7840L for Modulating Control (For Reference Only) Section: Sequence of Operation.
17 CG15, CG25, CG50 Burner Manual Pr epar e the Bur ner f or Star t-up Start-up Checklist V erify the following before attempting to start the burner .
18 Star t the Bur ner Initial Air Settings If your burner was built for a speci fi c OEM (Original Equipment Manufacturer) application, the “Mfr ’s Settings” label (see Figure 1 ) will indicate the application and the initial air settings made at Beckett.
19 CG15, CG25, CG50 Burner Manual Figure 10A - Damper Motor with Cover Figure 10B - Damper Motor with Cover Removed Push in on pin ( G ) to disengage the motor from the damper shaft and cam stack. Rotate the damper shaft by hand to place the adjustment cams in a position where their adjustment scale can be easily seen.
20 Optional Modulation Linkage Adjustment Instructions The optional modulation linkage assembly has been designed as an economic means to adjust the damper and the butter fl y valve to maintain air to gas ratios. When the optional Modulation linkage assembly is supplied with the burner , initial adjustments will be made at the factory .
21 CG15, CG25, CG50 Burner Manual T able 3 - Initial Burner Settings for Both Propane & Natural Gas Furnace Pressure at High Fire 0” W .C. 0.25” W .
22 Figure 13A - Display Meaning Modulation Control Modulation of the burner ’s fi ring rate is accomplished by driving the damper motor in small increments to either increase or decrease rate in response to boiler demand.
23 CG15, CG25, CG50 Burner Manual V erify Input Firing Rate Clock the meter , correct for pressure and termperature to get SCFH and calculate the input fi ring rate. Compare the calculated rate to the speci fi ed input for the boiler found on the speci fi cation sheets and on the rating plates for the burner and boiler .
24 Estimating Rate Manifold to Furnace Pressure information can be used to estimate the burner ’s fi ring rate when it is not possible to clock a meter for the rate. T o estimate the burner ’s fi ring rate: Measure the furnace pressure over fi re Measure the manifold pressure (at the manifold pressure test connection).
25 CG15, CG25, CG50 Burner Manual Figure 14A - Manifold to Furnace Pressure Drop vs Rate CG15 * Figure 14B - Manifold to Furnace Pressure Drop vs Rate CG25* 0 200 400 600 800 1000 1200 1400 1600 1800 0 0 .5 1 1 .5 2 2 .5 3 3 .5 4 4 .5 Pressure Drop, In.
26 Check Operation and Safety Controls Figure 14C - Manifold to Furnace Pressure Drop vs Rate CG50* 0 1000 2000 3000 4000 5000 6000 0 0 .5 1 1 .5 2 2 .5 3 3 .5 4 4 .5 Pressure Drop, In. WC Rate, MBH C G 50. 5S C G 50. 4S C G 50. 3S C G 50. 2S C G 50. 1S * Charts represent both natural and propane gas.
27 CG15, CG25, CG50 Burner Manual High gas pressure switch – With the burner fi ring and a manometer attached to the test port nearest the high pressure switch, gradually increase the gas pressure until the high pressure switch opens and shuts the burner off.
28 Maintenance and Ser vice Annual Maintenance (The following should be performed by a quali fi ed service technician only .) Burner: Run the burner and perform a complete combustion test using the proper instruments before proceeding. If necessary refer to the section labeled Start the Burner .
29 CG15, CG25, CG50 Burner Manual Check barometric damper or draft hood for proper operation. Inspect boiler sections and system load piping for possible leaks. Make all necessary repairs. Check all operating and safety controls on the boiler for proper installation and operation.
30 Burner Head Adjustment - There is an optimum gas ori fi ce size and burner head setting for each fi ring rate of the burner . The gas ori fi ce size sets the gas fl ow velocity; the head setting establishes the air fl ow velocity . When those velocities are properly matched the burner provides its best performance and stability .
31 CG15, CG25, CG50 Burner Manual Propane Restrictor Description The Beckett Propane Restrictor Conversion Kit allows for the conversion of CG15, CG25, and CG50 burners for use with propane gas.
32 T able 4 - Propane Restrictors Replacement Part Numbers Burner Model Restrictor Part Number Restrictor Inside Diameter O-Ring Part Number CG15.1S 3246709U 0.532 3226401U CG15.2S 3246710U 0.576 3226401U CG15.3S 324671 1U 0.623 3226401U CG15.4S 3246712U 0.
33 CG15, CG25, CG50 Burner Manual For the Operator T est/Inspection Frequency Comments Inspect area surrounding heating plant Daily Keep area clean and free of clutter Inspect gas supply system for le.
34 R eplacement P ar ts For best performance specify genuine Beckett replacement parts. Note 1: See Burner Con fi guration T able. 1 2 8 3 4 5 12 13 14 7 6 19 18 17 16 15 21 24 25 20 23 22 11 9 10 26.
35 CG15, CG25, CG50 Burner Manual Item Description CG15 Part No. CG25 Part No. CG50 Part No. 1 Timer (if used) 21295U 21295U 21295U 2 Air Proving Switch 22181U 22181U 22182U 3 Ignition Transformer 750.
USA: P .O. Box 1289 ● Elyria, Ohio 44036 Canada: R.W . Beckett Canada, Ltd. ● Unit #3, 430 Laird Road ● Guelph, Ontario N1G 3X7 www .beckettcorp.
An important point after buying a device Beckett CG15 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Beckett CG15 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Beckett CG15 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Beckett CG15 you will learn all the available features of the product, as well as information on its operation. The information that you get Beckett CG15 will certainly help you make a decision on the purchase.
If you already are a holder of Beckett CG15, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Beckett CG15.
However, one of the most important roles played by the user manual is to help in solving problems with Beckett CG15. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Beckett CG15 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
