Replacement parts
61
Greenstar 8000 Life – 6720883866 (2019/04)
9.2 Overheat thermostat removal
▶ Remove two electrical connectors from thermostat.
▶ Unscrew [1] the sensor [2].
Fig. 94 Removing overheat thermostat
9.3 Replacing the gas valve
Honeywell and SIT gas valves are completely interchangeable.
▶ Close the gas isolator.
1. Unscrew the bayonet connection.
2. Unscrew the union nut.
3. Remove the gas pipe.
Fig. 95 Removing the gas pipe
1. Unplug the electrical connection.
2. Unscrew the union nut.
Fig. 96 Unplugging the electrical connection and unscrewing the union
nut
1. Remove the 2 screws.
2. Remove the air/gas ratio control valve.
Fig. 97 Removing the gas control valve
▶ Install the air/gas ratio control valve in reverse order, and check the
gas/air ratio.
9.4 Following inspection/maintenance
▶ Re-tighten all the threaded connections that have been released.
▶ Restart the appliance.
▶ Check tightness of all joints.
▶ Check the gas/air ratio.
▶ Fit the combustion casing, side-, top panels and front cover.
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