FL D HF
2
EN
cod. 3541P701 - Rev. 00 - 10/2018
EN
1. GENERAL INFORMATION
•
Read the warnings in this instruction booklet carefully since they provide important
information on safe installation, 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 reference.
•
If the unit is sold or transferred 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 maintenance must be carried out by professionally qualified person-
nel, according to current regulations and the manufacturer's instructions.
•
Incorrect installation or inadequate maintenance can result in damage or injury. The
manufacturer declines any liability for damage caused by errors in installation and
use or by failure to follow the instructions provided.
•
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 repair
it or directly intervene. Contact professionally qualified personnel. Any repair/re-
placement of the products must only be carried out by qualified personnel using gen-
uine parts. Failure to comply with the above can compromise the safety of the unit.
•
Periodic maintenance performed by qualified personnel is essential in order to en-
sure proper operation of the unit.
•
This unit must only be used for its intended purpose. Any other use is deemed im-
proper and therefore hazardous.
•
After unpacking, check the good condition of the contents. The packing materials
are potentially hazardous and must not be left within the reach of children.
•
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 related risks. Children must not play with the unit. Cleaning and main-
tenance intended to be done by the user can be carried out by children aged at least
8 years only if under supervision.
•
In case of doubt, do not use the unit. Contact the supplier.
•
The unit and its accessories must be appropriately disposed of in compliance with
current regulations.
•
The images given in this manual are a simplified representation of the product. In
this representation there may be slight and insignificant differences with respect to
the product supplied.
2. OPERATING INSTRUCTIONS
2.1 Introduction
Dear Customer,
FL D HF
is a high-efficiency sealed chamber heat generator for heating and hot water
production (optional) running on natural gas or LPG, and equipped with a microproces-
sor control system.
A
The boiler is arranged for connection to an external storage tank for hot
water (optional). In this manual all the functions relevant to domestic hot
water production are only active with the optional hot water tank connect-
ed as indicated in
sec. 3.3
2.2 Control panel
Panel
fig. 1 - Control panel
Key of panel fig. 1
1
DHW temperature setting decrease button
2
DHW temperature setting increase button
3
Heating system temperature setting decrease button
4
Heating system temperature setting increase button
5
Display
6
"Sliding Temperature" Menu - Summer/Winter mode selection - Reset button
7
Unit On/Off - Economy/Comfort mode selection button
8
DHW symbol
9
DHW mode
10
Summer mode
11
Multifunction
12
Eco (Economy) mode
13
Heating
14
Heating symbol
15
Burner lit and actual power level (flashing during combustion fault function)
16
Service Tool connection
17
Water gauge
Indication during operation
Heating
A heating demand (generated by the Room Thermostat or Remote Timer Control) is in-
dicated by flashing of the hot air above the radiator on the display.
The display (detail 11 - fig. 1) shows the actual heating delivery temperature and, during
heating standby time, the message
“d2”
.
Domestic hot water (DHW)
A DHW demand (generated by drawing domestic hot water) is indicated by flashing of
the hot water under the tap on the display.
The display (detail 11 - fig. 1) shows the actual DHW outlet temperature and, during
DHW standby time, the message
“d1“
.
Comfort
A Comfort demand (reinstatement of temperature inside the boiler) is indicated by flash-
ing of the water under the tap on the display. The display (detail 11 - fig. 1) shows the
actual temperature of the water in the boiler.
Fault
In case of a fault (see cap. 4.4) the display shows the fault code (detail 11 - fig. 1) and
during safety pause times the messages
“d3”, “d4”
and
“d5”
.
2.3 Lighting and shutdown
Connection to the power supply
•
During the first 5 seconds the display will also show the card software release.
•
Open the gas cock ahead of the boiler.
•
The boiler is now ready to function automatically whenever domestic hot water is
drawn or in case of a heating demand (generated by Room Thermostat or Remote
Temperature Control).
Turning the boiler off and on
Press the
on/off
button (detail 7 - fig. 1) for 5 seconds.
fig. 2 - Turning the boiler off
When the boiler is turned off, the circuit board is still powered. Domestic hot water and
heating are disabled. The frost protection system remains activated. To relight the boiler,
press the
on/off
button (detail 7 fig. 1) again for 5 seconds.
fig. 3
The boiler will be immediately ready to work whenever domestic hot water is drawn or in
case of a heating demand (generated by the Room Thermostat or the Remote Timer
control).
B
The 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 circuit and add a suitable an-
tifreeze to the heating system, as prescribed in sec. 3.3.
THE CE MARKING CERTIFIES THAT THE PRODUCTS MEET THE ESSENTIAL REQUIREMENTS
OF THE RELEVANT DIRECTIVES IN FORCE.
THE DECLARATION OF CONFORMITY MAY BE REQUESTED FROM THE MANUFACTURER.
0
1
4
2
3
reset
eco
comfort
9
15
13
12
11
8
1
3
6
7
10
2
16
4
14
5
17
Summary of Contents for FL D HF24
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