106636-02 - 12/19
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X-2
Installation, Operating & Service Manual
12
Service and Maintenance
(continued)
Q. Test Vent Damper Operation
Vent damper must be in open position when main
burners are operating.
R. Test Functionality of LWCO
See "Start-up and Checkout - Check LWCO
Functionality.
S. Check High Limit Control
See " Start-up and Checkout - Check High Limit
Control".
T. Check Thermostat Operation
See "Start-up and Checkout - Check Thermostat
Operation"
U. Check CO detector operation (if available).
V. Lubrication. There are no parts requiring
lubrication by service technician or owner.
Circulator bearings are water lubricated.
W. If remodeling has occurred, verify combustion air
supply is adequate.
