Ferroli BlueHelix HiTech RRT H Instructions For Use, Installation And Maintenance page 314

Adjustments from Remote Timer Control
If the boiler is connected to the Remote Timer Control (optional), the previously described
A
adjustments are managed as described in table 2.
Table 2
Heating temperature adjustment
DHW temperature adjustment
Summer/Winter Switchover
Eco/Comfort selection
Sliding Temperature
System water pressure adjustment
The filling pressure, with system cold, read
on the boiler water gauge (detail 2 - fig. 26)
must be approx 1.0 bar. If the system pres-
sure falls below minimum values, the boiler
stops and fault F37 is displayed. Pull out the
filling knob (detail 1 - fig. 26) and turn it
counter-clockwise to return it to the initial
value. Always close it afterwards.
Once the system pressure is restored, the
boiler will activate the 300-second air vent-
ing cycle, indicated on the display by Fh.
To avoid boiler shutdown, it is advisable to
periodically check (with system cold) the
pressure on the pressure gauge or on the
display (detail 12 - fig. 1). In case of a pres-
Display
F40
2.3
bar
1.2
bar
0.7
bar
F37
314
Adjustment can be made from the Remote Timer Control menu and the boiler control panel.
Adjustment can be made from the Remote Timer Control menu and the boiler control panel.
Summer mode has priority over a possible Remote Timer Control heating demand.
On disabling DHW from the Remote Timer Control menu, the boiler selects Economy mode.
In this condition, the eco/comfort button on the boiler panel is disabled.
By enabling DHW from the Remote Timer Control menu, the boiler selects Comfort mode. In
this condition it is possible select one of the two modes on the boiler panel.
You can make all the adjustments by using the remote timer control.
Description
High pressure
Pressure slightly high
Optimum pressure
Pressure slightly low
(The indication with the symbol
visible only if parameter b09 is set to
1).
Low pressure
cod. 3541V481 - Rev. 00 - 06/2021
BlueHelix HiTech RRT H
sure below 0.8 bar, it is advisable to restore
it.
fig. 26- Filling knob
Operation
The boiler stops
The boiler works at reduced power
Normal operation
The boiler continues to work.
is
It is advisable to refill the system as soon as possible.
The boiler stops
1
2
EN