Start-Up & Checkout - Crown Boiler AWR Series Installation Instructions Manual

Do not leave the boiler in service if it fails any of the following start-up checks. Doing so may result in fire,
explosion, or Carbon Monoxide (CO) poisoning.
• Gas leaks may result in fire or explosion.
• Never use a flame to check for gas leaks.
• Make sure that the area around the boiler is clear and free from combustible materials, gasoline and other
flammable vapors and liquids.
• Water leaks may cause extensive property damage.
1) Start with the boiler dry and the gas supply to the boiler shut off.
2) Main Burner Check - Check main burners to see that they were not dislodged during shipment. Rear of burners should be
in the vertical slots in the rear of burner tray and the front of the burners should be seated completely on the orifices.
3) LWCO Probe Check - Turn on power to the boiler. Both the green power light and the yellow low water light should come
on (Figure 10.1)
If the yellow light on the LWCO is not illuminated when the boiler is powered and there is no water in the boiler,
shut down power to the boiler and contact the factory for assistance before proceeding further.
FIGURE 10.1: IDL 1200 LOW WATER CUT-OFF
4) Fill the boiler and system with water and purge the system of as much air as possible.
5) Turn on the gas supply to the boiler. Check the gas line for leaks and purge piping sections that are full of air. Refer to
the National Fuel Gas Code, the Natural Gas and Propane Installation Code, the gas supplier, or the authority having
jurisdiction for additional information on testing and purging gas lines.
6) Verify that the vent system is complete and free of obstructions before attempting to fire boiler.
7) Inspect all wiring for loose or uninsulated connections.
8) Adjust thermostat to the highest setting.
9) Start the boiler using the lighting instructions shown in Figure 10.3. Upon initial start-up, the gas train will be filled
with air. Even if the gas line has been completely purged of air, it may take several tries for ignition before a flame is
established. Once a flame has been established for the first time, subsequent calls for burner operation should result in a
flame on the first try.
10) Make sure vent damper is in open position when main burners are firing
11) Check entire gas train for leaks using non corrosive leak detection fluid or other approved leak detection method while
boiler is firing. Fix any leaks found immediately.
X Start-up and Checkout
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WARNING
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WARNING
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WARNING
FIGURE 10.2: TOP VIEW OF GAS VALVE
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