Ferroli BlueHelix HiTech RRT C Instructions For Use, Installation & Maintenance page 16

Display
1.2
bar
0.7
bar
F37
System draining
The drain cock ring nut is located under the safety val-
ve inside the boiler.
To drain the system, turn the ring nut (ref. 3 - fig. 26)
counter-clockwise to open the cock. Do not use any
tools; use hands only.
To drain only the water in the boiler, first close the
shut-off valves between the system and boiler before
turning the ring nut.
To connect the safety valve to a disposal system, ins-
tall the kit supplied (details 1 and 2 - fig. 26).
16
Description
Optimum pressure
Pressure slightly low
(The indication with the symbol
is visible only if parameter b09 is set
to 1).
Low pressure
cod. 3541V691 - Rev. 00 - 04/2022
BlueHelix HiTech RRT C
Operation
Normal operation
The boiler continues to work.
It is advisable to refill the system as soon as possible.
The boiler stops
fig. 26
3
2
1
EN