andrews MAXXflo EVO Series Installation And Maintenance Manual page 58

6.2.6 FAN
The combustion fan is best removed when the whole burner assembly has been detached from the heat ex- The combustion fan is best removed when the whole burner assembly has been detached from the heat ex-
changer (see 6.1.1.1), but can also be removed individually if these steps are followed: changer (see 6.1.1.1), but can also be removed individually if these steps are followed:
• • Turn OFF the electricity to the heater. Turn OFF the electricity to the heater.
• • Carefully remove the two electrical connectors from the fan. Carefully remove the two electrical connectors from the fan.
• • Remove the two cap screws securing the venturi to the fan. Remove the two cap screws securing the venturi to the fan.
• Remove the four bolts securing the fan to the air arm.
• Slide fan off venturi and remove
• Inspect both the venturi gasket and air arm gasket and replace if damaged.
• Replacement is the reverse
Please ensure that the cork gasket between the fan and the venturi is correctly
placed before fi xing the two venturi screws. Place a screw through the venturi to hold the
gasket in place when refi tting to fan
• Operate the heat engine and check for gas leaks. After fi ve minutes check the rate and combustion is
correct to the table on page 8. Adjust using the throttle screw on the gas valve clockwise to decrease
CO , anti-clockwise to increase CO
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6.2.7 OVERHEAT THERMOSTAT
• Locate the overheat thermostat behind the GUI bridge (see illustration below)
• Remove the thermostat from the clip by pushing the assembly upwards
• Disconnect the two wires
• Assembly is the reverse
Maintenance
Connector
if required. (see 5.0 for details)
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B B B B B Bolts
MAXXfl o EVO