Start-Up And Checkout - Crown Boiler CWD060 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
MONOXOIDE (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.
SAFE LIGHTING AND OTHER PERFORMANCE CRITERIA WERE MET WITH THE GAS MANIFOLD AND
CONTROL ASSEMBLY PROVIDED ON THE BOILER WHEN THE BOILER UNDERWENT THE TESTS
SPECIFIED IN Z21.13.
Use the following procedure for initial start-up of the boiler:
1) Make sure that the boiler and system are filled with water.
2) Check all new gas piping for leaks and purge piping sections that are filled with air. See the National Fuel Gas Code for
additional information on testing and purging gas lines.
3) Verify that vent system is complete and free of obstructions before attempting to fire boiler. Make sure that the silicone cure
time called for in the vent assembly instructions has passed before firing boiler.
4) Inspect all wiring for loose or uninsulated connections.
5) Adjust thermostat to the highest setting.
6) Start the boiler using the lighting instructions on the opposite page.
7) 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.
8) Observe pilot burner flame. Pilot burner produces three flames. The center one should be a steady medium blue flame
covering around 3/8" to ½" of spark electrode / flame rod (Figure 10.1).
9) Inspect the main burner flames visible through the observation port in burner access panel. The flame should be stable and
mostly blue. No yellow tipping should be present; however, intermittent flecks of yellow and orange in the flame are normal
(Figure 10.2).
10) Check entire gas train for leaks using soap and water or other approved leak detection method while boiler is firing. Fix any
leaks found immediately.
11) Run gas valve safety shutdown test. With main burners firing, disconnect ignition cable from ignition module. Both pilot
burner and main burners should stop firing.
X Start-up and Checkout
WARNING
WARNING
NOTE
46
46