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X-2
Installation, Operating & Service Manual
13. Measure carbon monoxide (CO) level in vent after
5 minutes of main burner operation. CO should
not exceed 400ppm air free.
14. Check vent damper operation.
Vent damper must be in open position when
appliance main burners are operating.
15. Check ignition system safety shut-off device.
After control has finished sparking, remove ignitor/
flame sense wire from control. Pilot and burners
will shut down.
16. Test LWCO functionality.
Press "TEST" button on IDL 1200. See Figure 10-6.
Boiler should shut down.
• Set thermostat to call for heat and push
“TEST” button on IDL 1200 to simulate
low water condition.
• Amber “LOW WATER” LED will illuminate and
burner will shut down.
• Release “TEST” button and burner will light
off.
10
System Start-up and Checkout
(continued)
Figure 10-6: IDL 1200 Low Water Cut-Off
17. Check high limit control. (See Section 10
"Operation - High Limit" for details). Set thermostat
to higher than normal setpoint. Allow boiler to run
until high limit is achieved (180°F default). Burners
will shut down.
18. Check thermostat operation. Raise and lower
temperature setting to start and stop boiler
operation. Adjust thermostat to normal setting.
19. Review User's Information Manual and system
operation with owner or operator.
