Crown Boiler TWZ200 Specifications download pdf (Page 28)

XI Start-up and Checkout

Use the following procedure for initial start-up of the boiler:

1) Ensure that the boiler and entire heating system are lled with water.

2) Check all new piping for leaks and purge heating system piping sections that are air bound.

3) Verify that the vent system is complete and free of obstructions prior to start-up of the boiler.

4) Inspect all wiring for loose or uninsulated connections, proper size fuses installed, etc.

5) Verify that oil tank is lled with #2 fuel oil meeting ASTM D396 specications, oil piping has been tested and is air tight,

and shutoff valve(s) are closed.

6) Check initial settings of oil burner air band and air shutter, head setting etc., and readjust if needed. See Table 11.0 for

setup and combustion data pertaining to a particular boiler/ burner combination.

7) Attach plastic hose to oil pump vent tting and provide a container to catch oil during oil pump bleeding procedure.

8) Install 0-200 PSI pressure gauge into oil pump gauge port.

9) Open all oil line shutoff valves.

10) Open ame observation port cover on burner swing door to see ame.

11) Adjust system thermostat to highest setting.

12) Set boiler controls (high limit, low limit, etc.) to suit individual requirements of the installation.

13) Turn the line service switch to “ON” position.

14) Crack open vent tting on the oil pump and allow burner to run until a solid oil stream, free of air bubbles, ows for 15

seconds into container. As the vent tting is closed, the burner should re and ame should be visible through observation

port immediately (or after prepurge timing has expired, if a burner is so equipped). Refer to burner instructions for more

details.

15) Immediately upon ring the boiler, check the smoke level. If the smoke level is in excess of a #1, open the air adjustment

to bring the smoke level below a #1.

16) Make sure that the oil pressure matches that shown in Table 11.0 for the burner supplied. Adjust pressure if required.

17) Check the vacuum at the inlet of the fuel pump. Make sure that the vacuum does not exceed the fuel pump manufacturer’s

limit (consult the pump manufacturer’s instructions).

18) Close the ame observation cover.

19) After chimney has warmed-up to operating temperature, adjust barometric draft regulator for a draft of -0.02 inch w. c.

over the re.

WARNING

• Never attempt to fill a hot empty boiler.

• Make sure that the area around the boiler is clear and free from combustible materials,

gasoline, and other flammable vapors and liquids.

• Safe reliable operation of this boiler requires that the burner be checked and adjusted by a

qualified oil serviceman using combustion test instruments.

• Failure to perform all of the checks outlined in the following procedure could result in

unreliable operation, damage to the boiler not covered under warranty, property damage,

or unsafe operation.

• All boilers equipped with burner swing door have a potential hazard which can cause

severe property damage, personal injury or loss of life if ignored. Before opening swing

door, turn off service switch to boiler to prevent accidental firing of burner outside the

combustion chamber. Be sure to tighten swing door fastener completely when service

is completed. In addition, the burner power cord will have to be disconnected from the

receptacle in the front jacket.

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Crown Boiler TWZ200 Specifications Page 28

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