SERVICE AND SPARES
Greenstar Ri Compact 6 720 646 610 (2013/12)
39
Fig. 76 Removing outer case
6.8.2 DRAINING THE BOILER
Many of the tasks in this section require that the boiler be isolated and
drained.
1. Connect a suitable hose firmly to the drain point and run the hose
outside to a suitable point or container.
2. Turn the drain valve a quarter turn anti-clockwise to open the drain.
Turn the valve firmly clockwise to close.
6.8.3 SIPHON REMOVAL
The Control panel will have to be removed to gain access to the siphon
for cleaning or removal.
ACCESS TO THE SIPHON
The Control panel must be removed from the hinges to give enough
access to fit the siphon.
1. Swivel the control panel down to an angle of approximately 60° from
the horizontal.
2. Pull the Control panel up to release the panel from the hinges.
▶ Allow the Control panel to hang on the cables and support strap.
Fig. 77 Control panel removal
1. Disconnect the discharge hose from the siphon.
2. Rotate the siphon body clockwise to release the bayonet connection.
3. Pull the siphon body down and away from the boiler.
Fig. 78 Siphon removal
▶ The control panel can be refitted by holding the panel at
approximately 60° to the horizontal and engaging the panel into the
hinge slots.
6.8.4
PRIMARY SENSOR (CH NTC)
▶ Remove the combustion air inlet pipe from the pre-mix unit, rotate
anti-clockwise and pull away from the fan assembly.
▶ Ease the gas pipe to the left.
▶ Disconnect the electrical connectors to the sensor.
▶ Remove the sensor by pulling forward.
▶ Replace the sensor onto the flow pipe, ensure that the sensor element
is in contact with the pipe and that the clip is secure.
▶ Connect the lead to the sensor.
▶ Re-fit the combustion air inlet pipe to the pre-mix unit.
Fig. 79 Primary sensor
6720646610-43.2W
o
1.
2.
3.
6.
7.
5.
4.
6720646610-10.1W
o
2.
1.
6720646610-48.1W
o
3.
2.
1.
6720646608-96.1W
o
