3
Warning
Each FCM series boiler is tested at the factory and adjustments to the air-
fuel mixture are normally not necessary. Consult a U.S. Boiler representative
before attempting to make any such adjustments. Improper gas valve or
mixture adjustments could result in property damage, personal injury, or loss
of life.
12) Test any external limits or other controls in accordance with the manufacturer’s instructions.
13) Verify that the boiler starts and stops in response to calls for heat from the heating thermostat and indirect water heater
thermostat. Make sure that the appropriate circulators also start and stop in response to the thermostats.
14) As shipped, the heating and indirect water heater set point supply temperatures are both set to 180°F. If necessary, adjust
these to the appropriate settings for the type of system to which this boiler is connected. See the Operation section of this
manual for information on how to do this.
15) Adjust the heating and indirect water heater thermostats to their final set points.
Summary of Contents for FREEDOM
Page 8: ...8 Figure 1 Wall Mounting Hole locations ...
Page 9: ...9 Figure 5 2 Boiler Mounting Hardware ...
Page 11: ...11 Figure 6 1 Boiler Installed In A Confined Space Ventilation Air From Inside ...
Page 42: ...42 FIGURE 7 51 CONDENSATE PIPING ARRANGEMENT ...
Page 55: ...55 Figure 10 1 Wiring Connections Diagram ...
Page 56: ...56 Figure 10 2 Ladder Diagram ...
Page 57: ...57 Figure 10 3 Wiring of Isolation Relay for Control of Two Heating Circulators ...
Page 60: ...60 FCM Series Lighting and Operating Instructions ...
Page 66: ...66 FIGURE 12 2 BASIC MENU TREE ...
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Page 84: ...84 156 157 158 159 160 161 ...
Page 85: ...85 162 ...