Ferroli BlueHelix HiTech RRT H Manual técnico
INSTRUCTIONS FOR USE, INSTALLATION AND MAINTENANCE
B
297
EN cod. 3541V481 - Rev. 00 - 06/2021
Read the warnings in this
instruction booklet carefully
since they provide impor-
tant information on safe in-
stallation, use and
maintenance.
This instruction booklet is
an integral and essential
part of the product and
must be kept with care by
the user for future refer-
ence.
If the unit is sold or trans-
ferred to another owner or if
it is to be moved, always
make sure the booklet
stays with the boiler so that
it can be consulted by the
new owner and/or installer.
Installation and mainte-
nance must be carried out
by professionally qualified
personnel, according to
current regulations and the
manufacturer's instruc-
tions.
Incorrect installation or in-
adequate maintenance can
result in damage or injury.
The manufacturer declines
any liability for damage
caused by errors in installa-
tion and use or by failure to
follow the instructions pro-
vided.
Before carrying out any
cleaning or maintenance
operation, disconnect the
unit from the power supply
using the system switch
and/or the special cut-off
devices.
In case of a fault and/or
poor operation, deactivate
the unit and do not try to re-
pair it or directly intervene.
Contact professionally
qualified personnel. Any re-
pair/replacement of the
products must only be car-
ried out by qualified person-
nel using genuine parts.
Failure to comply with the
above can compromise the
safety of the unit.
Periodic maintenance per-
formed by qualified person-
nel is essential in order to
ensure proper operation of
the unit.
This unit must only be used
for its intended purpose.
Any other use is deemed
improper and therefore
hazardous.
After unpacking, check the
good condition of the con-
298 EN
B
The CE marking certifies that the products meet the essential requirements of the rele-
vant directives in force.
The declaration of conformity may be requested from the manufacturer.
cod. 3541V481 - Rev. 00 - 06/2021
tents. The packing materi-
als are potentially
hazardous and must not be
left within the reach of chil-
dren.
The unit can be used by
children aged at least 8
years and by persons with
reduced physical, sensory
or mental capabilities, or
lacking experience or the
necessary knowledge, only
if under supervision or they
have received instructions
on its safe use and the re-
lated risks. Children must
not play with the unit.
Cleaning and maintenance
intended to be done by the
user can be carried out by
children aged at least 8
years only if under supervi-
sion.
In case of doubt, do not use
the unit. Contact the suppli-
er.
The unit and its accesso-
ries must be appropriately
disposed of in compliance
with current regulations.
The images given in this
manual are a simplified rep-
resentation of the product.
In this representation there
may be slight and insignifi-
cant differences with re-
spect to the product
supplied.
299
1 Operating instructions ........................................................................................................ 300
1.1 Introduction.........................................................................................................................................300
1.2 Control panel ......................................................................................................................................300
1.3 Connection to the power supply, switching on and off .......................................................................303
1.4 Adjustments........................................................................................................................................ 306
2 Installation ............................................................................................................................ 316
2.1 General Instructions ...........................................................................................................................316
2.2 Place of installation ............................................................................................................................316
2.3 Plumbing connections ........................................................................................................................ 316
2.4 Gas connection ..................................................................................................................................318
2.5 Electrical connections.........................................................................................................................318
2.6 Fume ducts.........................................................................................................................................321
2.7 Condensate drain connection............................................................................................................. 327
3 Service and maintenance.................................................................................................... 328
3.1 Adjustments........................................................................................................................................ 328
3.2 Commissioning...................................................................................................................................335
3.3 Maintenance.......................................................................................................................................336
3.4 Troubleshooting..................................................................................................................................343
4 Technical data and characteristics .................................................................................... 346
4.1 Dimensions and connections ............................................................................................................. 346
4.2 General view ......................................................................................................................................347
4.3 Hydraulic circuit ..................................................................................................................................347
4.4 Technical data table ...........................................................................................................................348
4.5 Diagrams ............................................................................................................................................352
4.6 Wiring diagram ...................................................................................................................................353
300 EN
cod. 3541V481 - Rev. 00 - 06/2021
1. Operating instructions
1.1 Introduction
Dear Customer,
BlueHelix HiTech RRT H is a high-efficiency, low emissions premix condensing heat generator
with heat exchanger in s/steel and incorporated DHW production, using Natural Gas (G20), Liq-
uefied Gas (G30-G31) or Propane-Air (G230) and equipped with a microprocessor control sys-
tem.
The sealed chamber unit is suitable for indoor installation or outdoors in a partially protected
place (according to EN 15502) with temperatures to -5°C.
AThe boiler is arranged for connection to an external storage tank for hot water (op-
tional). In this manual all the functions relevant to domestic hot water production
are only active with the optional hot water tank connected as indicated in sec. 2.3
1.2 Control panel
fig. 1- Control panel
Panel legend fig. 1
1DHW temperature setting decrease
button
2DHW temperature setting increase but-
ton
3Heating system temperature setting de-
crease button
4Heating system temperature setting in-
crease button
5Display
6Return button
7Winter, Summer, Unit OFF, ECO,
COMFORT mode selection button
8Eco mode ( )
9DHW mode
10 Summer/Winter mode
11 Menu / confirm button
12 System pressure
13 Heating mode
14 Burner lit
301
EN cod. 3541V481 - Rev. 00 - 06/2021
Indication during operation
Heating
A heating request (generated by the Room
Thermostat or Remote Timer Control) is in-
dicated by the flashing radiator symbol.
When the burner is lit, the flame symbol ap-
pears and the 3 levels indicate the actual in-
tensity.
fig. 2
DHW (domestic hot water)
A DHW request (generated by the hot water
tank probe) is indicated by the faucet icon
flashing.
When the burner is lit, the flame symbol ap-
pears and the 3 levels indicate the actual in-
tensity.
fig. 3
302 EN
cod. 3541V481 - Rev. 00 - 06/2021
Comfort
During Comfort mode (hot water tank temperature restoring) the flame symbol appears and the
faucet flashes.
Frost protection
In frost protection mode (flow temperature below 5°C) the flame symbol appears.
Fault
In case of a fault, the display shows the fault code with different graphics depending on the type.
A-type fault (fig. 5): For this fault manual intervention is required by pressing the button for
about 2 seconds. Then confirm with the button .
F-type fault (fig. 4): A fault which will be automatically reset after the problem has been eliminat-
ed.
Message-type fault (fig. 6): The fault is such as not to compromise boiler operation. The mes-
sage disappears when the problem is eliminated.
fig. 4 fig. 5 fig. 6
303
EN cod. 3541V481 - Rev. 00 - 06/2021
1.3 Connection to the power supply, switching on and off
Boiler not electrically powered
BTo avoid damage caused by freezing during long idle pe-
riods in winter, it is advisable to drain all the water from the
boiler.
Boiler electrically powered
Electrically power to the boiler.
During the first 5 seconds the display shows the software version of the board and display
(fig. 7).
For the following 20 seconds the display will show FH which identifies the heating system air
venting cycle with the fan running (fig. 8).
In the next 280 seconds, the venting cycle continues with the fan off (fig. 9).
Open the gas valve ahead of the boiler
When the message Fh disappears, the boiler is ready to operate automatically whenever hot
water is drawn or in case of a room thermostat request
fig. 7- Switching on / Software version fig. 8- Vent with fan on fig. 9- Vent with fan off
304 EN
cod. 3541V481 - Rev. 00 - 06/2021
To interrupt the venting phase (FH or Fh), keep the button pressed for about 2 seconds until
the symbol appears on the display. Confirm by pressing the button .
fig. 10
305
EN cod. 3541V481 - Rev. 00 - 06/2021
Turning the boiler off and on
Changing from one mode to another is possible by repeatedly pressing the button , following
the sequence shown in fig. 11.
A =Summer mode - B = Winter mode - C = Off mode
To turn the boiler off, repeatedly press the button until detail C of fig. 11 is displayed.
fig. 11- Turning the boiler off
When the boiler is turned off, the PCB is still powered. DHW and heating are disabled. The frost
protection system remains on. To relight the boiler, press the button .
The boiler will be immediately ready in Winter and DHW mode.
BThe frost protection system does not work when the power
and/or gas to the unit are turned off. To avoid damage
caused by freezing during long shutdowns in winter, it is
advisable to drain all water from the boiler, the DHW circuit
and the heating system water; or drain just the DHW cir-
cuit and add a suitable antifreeze to the heating system,
as prescribed in sec. 2.3.
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