Ferroli BLUEHELIX TECH RRT 28 C Instrucciones De Uso, Instalación Y Mantenimiento página 187

BLUEHELIX TECH RRT 28 C
Plate heat exchanger
Before carrying out the following instructions it is advisable to protect the room and the boiler's electrical box
A
against accidental water spillage.
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2
• Isolate the boiler by operating the DHW inlet and system shut-off valves.
• Open a faucet to drain the domestic hot water.
• Rotate the box on the panel
• Drain the water in the boiler through the drain faucet (see *** 'System draining' on page 161 ***)
• Undo the screws "2"
• Move the plate heat exchanger back and slide it to the left.
• Remove the heat exchanger as shown in the figure
• When refitting the plate heat exchanger, make sure the arrows (indicating: HEATING) are pointing downwards.
Circulating pump
Before carrying out the following instructions it is advisable to protect the room and the boiler's electrical box
A
against accidental water spillage.
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1
fig. 37
• Disconnect the power supply and turn off the gas cock ahead of the valve.
• Electrically disconnect the circulating pump, releasing the connections by raising the detail "1" of fig. 37.
• Drain the water in the boiler (see "System draining" on page 161).
• Unscrew and remove the circulating pump motor assembly (fig. 39)
EN
2
1
fig. 36- Plate-type exchanger replacement/maintenance
fig. 38
cod. 3541N260 - Rev. 04 - 04/2018
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4
fig. 39
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