Burnham ES2 manual Perform Startup Checks and Adjustments, Boiler restarts

10. Perform Startup Checks and Adjustments

FAILURE TO PERFORM THESE CHECKS of the boiler's combustion and

safety systems may result in serious property damage, injury, or death.

IF YOU SMELL GAS, STOP and repair the leak. Lighting the boiler when gas is

leaking may cause explosion or fire.

Follow the checklist below:

1.Verify that the venting, water piping, gas piping, and electrical systems are properly installed and checked.

2.Apply power to the boiler.

3.Adjust zone thermostat to maximum setting.

4.Allow gas line to purge of air.

q Boiler lights cleanly within 60 seconds.

5.Adjust gas input rate. See Appendix F

– Adjusting Gas Input Rate

10-a

qPilot and main burner flames appear clean and blue.

6.Disconnect pilot lead wires from gas valve (Figure 10-b).

qBoiler shuts off.

7.Reconnect pilot lead wires to gas valve.

qBoiler restarts.

10-b

8.Adjust zone thermostat to minimum setting. q Boiler shuts off.

9.Adjust zone thermostat to maximum setting.

10.Observe temperature gage as boiler heats.

11.Adjust the high limit setting to its minimum level (see "Programming High Limit" in Section 8).

q Boiler shuts off when temperature gage reads within 15°F of high limit setting.

12.Return high limit to the desired setting (see

"Programming High Limit" in Section 8).

13.Check draft. See Appendix G

– Checking Draft and Combustion.

qNo spillage observed.

14.Check combustion in the vent stack and record results in the spaces provided below.

_____	CO2	(less than 7%)
_____	O2	(more than 9%)
_____	CO	(less than 100 ppm, air free)

ANY FAILED STARTUP CHECK Must be corrected before placing the

boiler in service.

16