Fiamma Elektra 18 kW N 016 TROLLEY Operating instructions

®
ELECTRIC WALL BOILER
ONLY HEATING
Elektra.. 18 kW N016 Trolley series
USER AND MAINTENANCE MANUAL
EQUIPMENT CONFORM TO EC DIRECTIVE 2006/95 / EC. And built in compliance with IEC 60335-2-21:
2012 IEC 60335-1: 2010 EN 60335-2-21: 2003 + A1: 2005 + A2: 2008 - EN 60335-1: 2012 - EN 62233: 2008
Power supply: 400 V / 50 Hz + N (three-phase power)

2
ELECTRIC WALL BOILER
Series ELEKTRA.. N016 Trolley
Presentation
Thank you for choosing an electric wall boiler FIAMMA, built with the most modern
technologies, safe and tough materials, so as to ensure maximum efficiency of use,
total quality of the device and extreme safety for user. The series Elektra.. is built
according to European standards dir. machines 2006/42 - IEC 60335-1:2010 with
EN 60335-2-21:2003 +A1:2005+A2:2008 - EN 60335-1:2012 - EN 62233:2008.
The obtained results can be summarized in the following key points:
- noiseless functioning, thanks to maximum insulation of the device by means of
innovative special materials that ensures minimum heat loss.
- high degree of reliability, thanks to a careful choice of materials and to server tests
carried out during production for each unit built.
- high performance with maximum efficiency, thanks to a modulation of electric
power to the heating elements, according to the actual need of energy by the
system or the need of sanitary water. The system D.E.S. manages the device with
temperature probes positioned in each sensitive point of the boiler, so as to
manage both comfort and economy functioning, in order to reduce power
consumption when the device is not used at the maximum capacity or demand.
- the appliance is fully adjustable both in water temperature of the heating system
(with the possibility to choice of system at high and low temperature for the
underfloor systems) and in the domestic hot water temperature.
- The assembly of the components has been realized in order to allow an easy
access to them, all from the front of the unit, for ordinary and extraordinary
maintenance.
We recommend you to follow our instructions, and we suggest to contact the area
authorized service FIAMMA in order to prepare a planned maintenance contract
which can ensure suitable operation at maximum efficiency and safety, so that your
machine use can go a long way. In renewing our thanks, our technical department
and our sales network, are at your disposal for any further information.
FIAMMA GIRO s.r.l.
Company group
The company FIAMMA GIRO s.r.l. declines all responsibility for possible inaccuracies contained in this
pamphlet, if due to printing errors or inadvertent errors. However, reserves the right to make changes to its
products that it deems useful or necessary, without affecting the essential characteristics of the products
manufactured and marketed.

3
WARNINGS:
THIS EQUIPMENT MAY BE USED BY CHILDREN FROM 8 YEARS AND UP TO
PERSONS WITH CAPACITY PHYSICAL, SENSORY OR MENTAL
CAPABILITIES OR LACK OF EXPERIENCE AND KNOWLEDGE, A CONDITION
THAT SUPERVISION OR WHO WILL GET DIRECTIONS FOR USE IN THE
DEVICE SAFELY TO UNDERSTAND THE RISKS INVOLVED. CHILDREN
SHOULD NOT PLAY WITH THE APPLIANCE. CLEANING AND MAINTENANCE
SHOULD NOT BE MADE BY CHILDREN WITHOUT SUPERVISION.
FOR DIRECT CONNECTION TO THE MAINS, YOU MUST PROVIDE A DEVICE
THAT MAKE THE DISCONNECT THE NETWORK WITH A DISTANCE
CONTACT OPENING ALLOWING THE COMPLETE DISCONNECT THE
CONDITIONS OF OVERVOLTAGE CATEGORY III, UNDER THE RULES OF
INSTALLATION.
IF THE POWER CABLE IS DAMAGED, IT MUST BE REPLACED BY THE
MANUFACTURER OR THE TECHNICAL ASSISTANCE SERVICE OR
OTHERWISE BY A PERSON WITH SIMILAR QUALIFICATION IN ORDER TO
PREVENT ANY RISK.
WATER CAN DRIP FROM EXHAUST DEVICE AGAINST OVERPRESSURE AND
THE HOSE MUST BE LEFT OPEN THE ATMOSPHERE.
THE DEVICE AGAINST OVERPRESSURE SHALL BE OPERATED REGULARLY
TO REMOVE DEPOSITS OF LIMESTONE AND TO CHECK THAT ARE
BLOCKED.
THE EXHAUST PIPE CONNECTED TO THE DEVICE AGAINST
OVERPRESSURE MUST BE INSTALLED IN SLOPE AND CONTINUE DOWN IN
A PROTECTED BY ICE FORMATION.

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DIMENSIONS
The series Elektra.. N016has four power levels, but the same overall dimensions:
Elektra 18 kW N016 TROLLEY 18 kW maximumelectrical output
Appliance dimension: Packaging dimensions:
L (Width): 400 mm Width: 440 mm
H (Height): 875 mm Height: 940 mm
P (Depth): 300 mm Depth: 390 mm
Weight: 39 kg Weight: 41 kg
◄
◄
►
►
▲
▼
LP
H

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Hydraulic connections - Dimensional of connection arrangement
M Heating delivery: ¾” M
R Heating return: ¾” M
VSR Heating safety valve (0,3 MPa - 3 bar): ½” F
RC Manual filling tap (restoring water pressure)
The unit is expected to be connected in a continuous manner to the water mains without
the use of a set of junctions.
Bottom view (under the boiler)
Electrical
supply
VSR (It must be removed by opening knock-out)
M
R
165
40
9580120
▲
▼
◄
◄
◄
◄
►
►
►
►
RM
▲
▲
►
Electrical
supply

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MAIN TECHNICAL FEATURES
Elektra 18 kW N016TROLLEY 18 kWmaximum electrical output
Three-phase electrical supply: 400 V - 50 Hz.
Weight: 39 kg.
Electrical / heat power available at heating of 18 kW obtained by n°.3
Resistance group (n°.3 da 3x2 kW).
Maximum head available at the pump of 7 m.c.a.
Expansion vessel capacity of 10 liters.
Safety valve of heating circuit of 0,3 MPa (3 bar).
Maximum heating operating pressure: 0,25 MPa (2,5 bar).
Minimum operating pressure in the heating circuit: 0,06 MPa (0,6 bar).
Maximum limit of thermal safety heating circuit - boiler body: 100°C.

7
CONTROL PANEL
The control panel is composed of: display, function selection keys, general switch and the
hydrometer it si placed in the lower left corner in front of the unit (see image above).
Using analogical hydrometer
The analogical hydrometer control panel has a dial with unit of measure in a bar, by 0 to 6
bar. The water pressure in the heating system is indicated by the index of the black arrow.
The optimum pressure for the system is between 1 and 1,5 bar.
More then 1,5 bar you can have a maximum pressure of the 2 bar (maximum expansion of
the system during the rise in temperature). More than 2 bar pressure the system is not in
the range of operation, and the mechanical safety valve (preset to 3 bar) can start to lose
water (to access the valves remove the knockout openings at the valves, see page 2
hydraulic installation diagram).
The minimum op rating pressure is 0,8 bar (+/-0,2 bar). The differential positive or negative
tolerance is due to the operation of the water pressure switch with fixed setting..
hydromete
r
DisplayGeneral
switch

8
Keyboard panel (Control panel)
Meaning of the keys in user mode
Key Function
-H(J5)Change and set parameters
+H(J6)Change and set parameters
ON/OFF (J7)
- ON - OFF switching (long press)
- Display temperature output / Display setpoint output
- Unlock error of safety thermostat
MODE (J4)Summer – winter switching (long press)
+I(J2)Display / Increase of heating setpoint (or room temperature)
-I(J3)Display / Decrease of heating setpoint (or room temperature)
J7
J6
J5J4J3J2
TURNING ON THE BOILER
The boiler is switched-on by means of the general switch located on the left of the display
in the instrument panel of the boiler. Pressing the switch upward to the ON position, it will
light in the presence of three-phase supply (400 V - 50 Hz). Then, it shall be pressed the
ON-OFF (J7) on the keypad to switch the power from stand-by to the operating position,
the display will light up of blue and will appear various symbols signaling function/faults
etc. At this point it shall be chosen the mode of operation, summer or winter operation.

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CHOICE OF THE OPERATION MODE (Winter/Summer)
Pressing the key MODE(J4), i twill be chosen the modeof operation, wintry or summery.
Pressing repeatedly each time for at least 5 seconds, you switch from WINTER to
SUMMER or from SUMMER to WINTER then. When the device will be in WINTER mode,
on the display will appear the Symbol
C (snow). When the device will be in SUMMER
B (sun).
TEMPERATURE VARIATION OF THE HEATING CIRCUIT
When the apparatus has been set with the snow symbol (
C ) for the wintry functioning, you
can change the maximum temperature of heating circuit pressing one of the two keys with the radiator
symbol located on the left of the display (+
I and – Ikeys ). The key with the symbol +I(J2),
increases the temperature, and the key with the symbol -
I (J3)decreases the temperature.
ON-OFF KEY (Display symbols)
The ON/OFF (J7) key, in addition to put the boiler
in stand-by mode, allows to reset (unlock) the apparatus
in case of high temperature lock. If the lock would
be caused by lack of water pressure alarm, the recovery
will be automatic after that the hydric pressure will
be restored at the minimum operating level (0,08 MPa - 0,8 bar) by means of the operating
and the closure of the charging tap placed under the boiler (black handle). The display has
several symbols, signaling in addition to operation modes, also the various alarm or system displays:
Symbol Meaning
L Malfunction
J Request of burner switch-on
I Heating request
F Parameter menu activated
E Anti-freeze request activated
C Winter mode
B Summer mode
A OFF mode
Level of
modulation Indicates the instantaneous power of the boiler by 0 to 100%
mode, on the display will appear the Symbol

10
INSTALLATION
TECHNICAL NOTE FOR INSTALLER AND TECHNICAL MAINTENANCE
HYDRAULIC SCHEME
(Elektra18 kWN016 TROLLEY version)
Legend
- TS Safety thermostat. - rs Filling tap.
- PA Water pressure switch. - CC Boiler body.
- VSR Safety valve heating circuit ½”x0,3 MPa (3 bar). - SThermowell for immersion sensor.
- VE Expansion vessel heating circuit. - RC Boiler resistance 6 kW.
- R Hydraulic connection inlet heating circuit. - AF Cold Water
- M Hydraulic connection outlet heating circuit. - TTermometer
- rsc Drain valve of boiler body. - VIM Manual interception ball valve
- GC Automatic loading group.
TT
VIM
AF
VIM
GC

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CONNECTING SCHEME
black
yellow
/
green
brown blue brown
blu
e
b
l
u
e
brown
PI
F N
TA
SM SE PS
A
cTS
1 2 3
1
4 5 6 7 8 9 10 11
5151 50 49 48 47 46 45 44 434241 40 38 3736
55
56
54
J11
Interfa
c
e 961.O
JP7 JP8 JP9 JP10
0 1
39
1
2
3
1
2
3
4
5
6
7
J14 J12
J11
J5
J6
N
R
T
G3
G2
G1
G4
OUT
230-240V
53
OT
PE
F.E.
white
yellow
red
blue
brown
black
black
black
brown brown brown
blue
brown
red
b
l
u
e
red
black
G5
brown
ST
black
TT
grey
G5B
green

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MAIN ELECTRIC SCHEME
G1
R
G2
R
G3
S
G4
S
G5
T
G5B
T
R
N
GX
TS
ON/OFF
GX
MAIN PCB
SIEMENS
Contact
TS
R,S,T
N
A2 A1
R
SIEMENS
S T
Combination triac controls - PHASES
blue
blue
brown
brown
black
black
black
brown
blue
brown
blue
blue
blue
400V-50Hz
brown
brown
brown
Legend electric scheme
Single phase F
Neutral N
Selected phase from contactor RT-ST-TT
Electric pump (circolatore a prevalenza variabile) PI
Control of contact TS on contactor of power (C-NO) cTS
Control gate triac n°1 (4KW power) G1
Control gate triac n°2 (2 KW power) G2
Control gate triac n°3 (4KW power) G3
Control gate triac n°4 (2 KW power) G4
Control gate triac n°5 (4KW power) G5
Control gate triac n°5B (2KW power) G5B
Delivery heating probe (ntc sensor) SM
External probe (sensor) SE
Water pressure switch PSA
Safety thermostat TS
Room thermostat (terminal provided) TA
Connection with remote control OpenTherm (optional) OT
General switch (Also disconnects power to the board) ON/OFF
Functional ground derived from the point ground F.E.
Properly grounded point this application PE

13
TRIAC – Connection scheme

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MANUFACTURE CONSTANTS
Function Value
Maximum temperature primary circuit 80 °C
Time of pump functioning in anti-lock 10 sec
Intervention time anti-lock pump 24 hour
Temperature antifreeze On (only circulator) < 8 °C
Temperature antifreeze On (heat exchanger ignition) < 5 °C
Temperature antifreeze Off > 20 °C
SETPOINT AND PARAMETERS
Function Default Range
Heating setpoint 60 °C 30 ÷ 75 °C
Floor heating setpoint 30 °C 10 ÷ 40 °C
Room setpoint (with external probe present) 20 °C 10 ÷ 30 °C
PARAMETERS
Function Display Def. Range
External probe start up P : 1 0 0 – 1
Building coefficient of dispersion P : 2 35 5 ÷ 35 °C
Sanitary post circulation P : 3 15 1 ÷ 180 sec
Heating post circulation P : 4 30 1 ÷ 180 sec
Heating exchanger circulation starting P : 5 0 0 ÷ 240 sec
Min. ignition temperature circulator P : 6 30 0 ÷ 50 °C
Delivery differential of sanitary P : 7 15 0 ÷ 20 °C
Type kettle present P : 8 0 0 = Internal probe
1 = External
thermostat
2 = External probe
Type of sensor required tank P : 9 0 0 = flow switch and
three-way pneumatic
1 = flow meter and
electric three-way
Application heated screed P : 11 10 = Boiler
1 = Heated screed
Supply type P : 12 1 0 = single-phase
1 = three-phase
Function Display
Delivery temperature T :[h
External temperature T :Ep
Offset setpoint of external probe T :Se
TEMPERATURES

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SELECTION JUMPERS(move the jumpers with no power board)
0
Jumper position 0
1 01
Jumper position 1
Jumper 0 1 Default
JP7 High temperature (radiator) Low temperature (floor) 0
JP8 Combined Heating only 0
JP9 Sanitary with tank Sanitary instantaneous 0
CONTROL OF MAIN HEAT EXCHANGER (BOILER BODY)
According to the required power during the heat request, the controls by G1 to G3, G5 and
G5B related to the main exchanger are turned on all or partially. The actuaction of each
control is reduced to a lapse of 4 seconds. Higher is the required power, more the control
will remain operative in this lapse. The power in heating or during a sanitary request is
calculated by PID algorithm. Please see in the pictures below two examples related to
40% and 60% of total power (12 kW).
G1
G2
G3
G
5/G5B
4
s
G1
G2
G3
G5/G5B
4 s
L
e
vel power 40% - 4.8kW Level power 60% - 7.2kW
Controls rotation
Every hour the order of ignition of triac G1÷G5B controls is rotated in such a way to
partition evenly in timethe use of all heating elements.

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CONTROL OF EXTERNAL PROBE
Installation and functioning at sliding temperature
For the connection of the External Probe, it shall be used the Original Kit
FIAMMA code F.532 provided in the accessories of the electric boilers
Elektra. The electrical connection shall be done in the external terminal at
the general electric panel already prearranged in the standard cabling of
the boiler. The connection must be carried out with junction cables and wires having a
minimum section of 1,5 mm and, if possible, avoiding the insertion along with electric lines,
digital lines of inverter or other not compatible.
After the connection the external probe mustbe enabled by means of the introduction of a
variation of P1 parameter, changed from 0 to 1.
Then the setpoint chased by the heating delivery probe will be calculated as follows:
Tch [°C] = [( Troom [°C] – Text [°C]) * dc/10 ] + Troom [°C]
Tch : heating setpoint calculated by the system
Troom: ambient temperature set by the user
Text: outside temperature measured by the probe
dc: dispersion coefficient of the building can be set by parameter P2.
28
33
38
43
48
53
58
63
68
73
-20-15-10-505101520
35 30 252015
10
8
5
Text[°C]
Tch[°C]
Examples of curves with Troom set at 20°C and JP7 = 0
20
25
30
35
40
-20-15-10-505101520
35 30 25 20 15 10
8
5
Text[°C]
Tch[°C]
Examples of curves with Troom set at 20°C and JP7 = 1
ANTIFREEZE FUNCTION
In case the delivery probe measures a temperature lower than 7°C, the circulator is
activated. If the temperature goes down the value of 4°C, the primary exchanger (boiler
body) is turned on until bringing the outlet temperature to 20°C. The antifreeze function is
active also with the boiler turned OFF (function in standby mode but with bright switch on).

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REQUEST HEATING
At the closing of the room thermostat contact, if the board is in winter mode, the system
pump is only activated if the primary exchanger temperature is higher than the set
temperature using the parameter P6. If the temperature value detected by the primary
exchanger probe is lower than the flow temperature setpoint set, the triacs are turned on in
sequence according to the power required. This only occurs after a timeset by parameter
P5, to allow for example the opening of eventual zone valves. The instantaneous power of
the boiler and the control of the triac G1÷G5B is by PID controller. At the end of the
request, the circulator remains powered for a time equal to the value set by parameter P4.
Degassing function
During the execution of the automatic venting function (10 min.) The pump works from time
to time at low and high speed and transports the air formations out of the pump directly to
the system vent valve.
ISTRUCTION PUMP
The pump consists of a hydraulic system, a wet rotor motor with permanent magnet rotor and
an electronic control module with integrated frequency converter. The control module contains
a control button, the pump is also equipped with an LED indicator to display the operating status
of the pump.
Functions
All functions can be set, activated or deactivated using the command button.
Variable pressure difference (∆p-v):
The delivery value of the pressure difference is increased linearly between ½ H and H in the
permitted flow range. The value of the pressure difference generated by the pump is adjusted
to the set delivery value. This control mode is particularly suitable for heating systems with
radiators, since the flow noise on the thermostatic valves is reduced.
Difference of constant pressure (∆p-c):
The delivery value of the pressure difference H is maintained, within the permissible flow range,
constantly on the set delivery value up to the maximum characteristic curve. This control mode is
recommended for underfloor heating systems or older heating systems with large pipes, but also
for all other applications that do not have variable plant characteristic curves, such as boiler drain

Filling and venting
Fill and vent the system correctly. If direct venting of the rotor compartment is necessary, the
venting function can be started manually. By turning the control button to the central position,
to the vent symbol, the vent function is activated after 3 seconds.
The duration of the vent function is 10 minutes and is shown by the rapid flashing of the green
LED. A certain noise may occur during the venting function.
The process can be interrupted at will by turning the button.
At the end of the 10 minutes the pump stops and automatically switches to the ∆p-c max.
setting mode.
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Then you need to set the adjustment mode and prevalence if the pump does not have to
continue to operate in ∆p-c max mode.
NOTE: The vent function removes the air accumulated in the pump rotor compartment.
This function does not affect the heating system.
Setting the adjustment mode
By turning the control button, the adjustment mode symbol is selected and the desired prevalence/
constant speed is set.
Variable pressure difference (∆p-v):
To the left of the central position, the pump is set to ∆p-v control mode.
Difference of constant pressure (∆p-c):
To the right of the central position, the pump is set to ∆p-v control mode.

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MEANING OF THE KEYS OF TEMPERATURE MENU
To log in temperature menu, press simultaneously -I(J3) and -H(J5) keys. The symbol
F will appear on the display.
Key Function
ON/OFF (J7) Exit by temperature menu
+I(J2) Temperature index increase
-I(J3) Temperature index decrease
MEANING OF KEYS OF PARAMETERS MENU
To log in parameter menu, press simultaneously +I(J2) and +H(J6) keys for 4 seconds.
The symbol F will appear on the display.
Key Function
-H(J5) Parameter value decrease
+H(J6) Parameter value increase
ON/OFF (J7) Exit by parameters menu
+I(J2) Parameter index increase
-I(J3) Parameter index decrease
“Heating elements status”
The dashes located in the upper part indicate the heating elements status. Every mark is
equivalent to the triac reference: G1 (4kW), G2 (2 kW), G3 (4kW), G4 (2 kW), G5 (4 kW)
and G5B (2kW). G1 G2 G3 G4 G5/G5B
HEAD SCREEN APPLICATION
To select the use of the main board on application for screed heater, JP10 = 1 is used.
With the room thermostat open, the system displays the temperature measured by the probe
of the primary exchanger and the operating state in which it is located ( ST.By = stand-by).