BLUEHELIX TECH RRT H
185
EN
cod. 3541C673 - Rev. 00 - 11/2020
Gas valve
fig. 36- Gas valve replacement
•
Disconnect the power supply and turn off the gas
cock ahead of the valve.
•
Disconnect the connectors
•
Disconnect the gas supply pipe
•
Undo the screws
“1”
•
Remove the clamp
“2”
•
Remove the gas valve
•
Then undo the screws
“4”
•
Fit the new valve, carrying out the above steps in
reverse order.
Refer to the instruction sheet included in the kit
when replacing the gas diaphragm.
fig. 37- Gas diaphragm replacement
Circulating pump
A
Before carrying out the following instructions it is advisable to protect the room and the boiler’s electrical box
against accidental water spillage.
•
Disconnect the power supply and close the gas cock ahead of the valve.
•
Electrically disconnect the circulating pump, releasing the connections by raising the detail
“1”
in fig. 38.
•
Drain the water in the boiler (see “System draining” on page 159).
•
Unscrew and remove the circulating pump motor assembly (fig. 40)
1
4
2
3
fig. 38
fig. 39
fig. 40
1
2
3
