Sime Edea HM 20 Ri User guide

Fonderie SIME S.p.A. 6333525 - 02/2024 - R1
Cod.
INSTALLATION AND SERVICING INSTRUCTIONS
NOT TO BE LEFT WITH THE END USER
EDEA HM R
Gas Safety Certified AS/NZS 5263.1.2
LN: SAI-400433
CAUTION
This product must be installed exclusively by professionally
qualified personnel in accordance with the requirements of
the standards AS/NZS 5601, AS/NZS 3500, AS/NZS 3000 (cur-
rent version) of the local gas, electricity authorities and other
relevant legislation.
Condensing wall mounted boiler
EN
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
To consult the documentation,
visit our website www.sime.it

2
SAFETY WARNINGS AND REGULATIONS
m
WARNINGS
– After having removed the packaging
make sure that the product supplied is
integral and complete in all its parts. If
this is not the case, please contact the
Dealer who sold the appliance.
– The appliance must be used as intend-
ed by
Sime who is not responsible for
any damage caused to persons, ani-
mals or things, improper installation,
adjustment, maintenance and improp-
er use of the appliance.
– In the event of water leaks, disconnect
the appliance from the mains pow-
er supply, close the water mains and
promptly inform professionally quali-
fied personnel.
– Periodically check that the operating
pressure of the water heating system
when cold is
1-1.2 bar (100-120 kPa) . If
this is not the case, increase the pres-
sure or contact professionally qualified
personnel.
– If the appliance is not used for a long
period of time, at least one of the fol-
lowing operations must be carried out:
-
set the main system switch to "OFF";
- close the gas and water valves for the
water heating system.
– In order to ensure optimal appliance
operations Sime recommends that
maintenance and checks are carried
out ONCE A YEAR .
– If the power cable is damaged, replace
it with a cable ordered as a spare part
with the same characteristics (type X).
Assembly must be by carried out by a
qualified professional.
– This appliance is not suitable for pool
or SPA heating.
–
It is recommended that all operators
read this manual carefully in order to
use the appliance in a safe and rational
manner.
m
WARNINGS
– This manual is an integral part of the
appliance. It must therefore be kept
for future reference and must always
accompany the appliance in the event
the appliance is transferred or sold to
another Owner or User or is installed
on another system.
–
Installation and maintenance of this
appliance must be carried out by a
qualified company or by a profession-
ally qualified technician in accordance
with the instructions contained in the
manual. Once the work is complete,
the company or technician will issue a
declaration of conformity with national
and local technical standards and leg-
islation in force in the country where
the appliance will be used.
–
Any repairs on the appliance must be
carried out solely by professional-
ly qualified personnel, using original
spare parts only. Failure to comply with
these instructions can jeopardise the
appliance’s safety and void the warran-
ty with immediate effect.
–
Fonderie SIME S.p.A. reserves the right
to make improvements to its prod-
ucts at any time without prior notice,
without compromising their essential
characteristics. The graphic illustra-
tions and/or images in this document
may show optional accessories that
vary according to the country in which
the appliance is used.
– Once the installation of the appliance
has been completed, professionally
qualified personnel must issue a dec-
laration of conformity with the Plumb-
ing Code of Australia (PCA).
–INSTALLATION, USE AND MAINTE-
NANCE OF THE APPLIANCE MUST BE
CARRIED OUT ACCORDING TO THE IN-
FORMATION GIVEN IN THE MANUFAC-
TURER’S MANUAL.

3
RESTRICTIONS
d
IT IS FORBIDDEN
– To allow children under the age of 8 to
use the appliance. The appliance can
be used by children no younger than
8 years old, by people with physical
or cognitive disabilities, and by people
lacking experience or the necessary
knowledge, provided that they are su-
pervised or have been instructed on
how to use the appliance safely and
that they understand the risks associ-
ated with it.
– To allow children to play with the ap-
pliance.
–To allow unsupervised children to per-
form user maintenance and cleaning.
–To use electrical devices or appliances
such as switches, electrical appliances
etc if you can smell fuel. If this should
happen:
-
open the doors and windows to air the
room;
- close the gas isolation device;
- promptly call for professional assis-
tance.
– To touch the appliance with bare feet or
with any wet part of the body.
– To carry out any technical interven-
tion or cleaning operation before hav-
ing disconnected the appliance from
the mains power by setting the main
switch to "OFF", and closing the gas
supply.
– To modify the safety or adjustment
devices without authorization and in-
structions from the manufacturer.
–To block the condensate drain (if pres-
ent).
–To pull, detach or twist the electrical
cables coming out of the appliance
even if the appliance is disconnected
from the mains power supply.
d
IT IS FORBIDDEN
– To expose the boiler to atmospheric
agents. These boilers can also be in-
stalled in partially covered areas, as
per EN 15502, with a maximum ambi-
ent temperature of 60 °C and a mini-
mum ambient temperature of - 5 °C.
It is recommended that the boiler is
installed below weathered roofs, on
the balcony or in a protected niche, to
protect it from exposure to weathering
agents (rain, hail and snow). The boiler
is equipped as standard with an anti-
freeze function.
– To block or reduce the size of the venti-
lation openings of the room where the
appliance is installed, if present.
– Remove the mains power and gas sup-
ply from the appliance if the external
temperature could fall below ZERO
(risk of freezing).
– To leave containers with flammable
substances in the room where the ap-
pliance is installed.
–To dispose of the packaging material
irresponsibly as it could be danger-
ous. Packaging must be disposed of as
specified by the legislation in force in
the country where the appliance will be
used.
– Do not install the boiler in special en-
vironments that may limit its optimum
operation (e.g. marine environment).
– To spray aerosols in the vicinity of this
appliance while it is in operation.
– To place articles on or against this ap-
pliance.
–To modify this appliance.

4
Dear Customer,
Thank you for purchasing a
Sime Edea HM R boiler, a new-gen-
eration condensing modulating device possessing technical and
performance characteristics capable of satisfying your heating
requirements with the utmost safety and with limited running
costs.
RANGE
MODEL CODE
Edea HM 20 Ri 8116942
Edea HM 20 Re 8116943
Edea HM 40 Ri 8116944
Edea HM 40 Re 8116945
COMPLIANCE
Our company declares that Edea HM R boilers comply with the
following Australian Standards
– AS/NZS 5601 Gas Installations
– AS/NZS 3500 Water services, Sanitary plumbing and drainage
– AS/NZS 3000 Electrical installations, Buildings, structures
and premises
License Number: SAI-400433.
SYMBOLS
a
WARNING
To indicate actions which, if not carried out correctly,
can result in injury of a general nature or may damage
or cause the appliance to malfunction; these actions
therefore require particular caution and adequate
preparation.
f
ELECTRICAL HAZARD
To indicate actions which, if not carried out correct-
ly, could lead to injury of an electrical nature; these
actions therefore require particular caution and ade-
quate preparation.
d
IT IS FORBIDDEN
To indicate actions which MUST NOT BE carried out.
m
CAUTION
To indicate particularly important and useful informa-
tion.
MANUAL STRUCTURE
This manual is organized as follows.
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS 5
INSTALLATION AND SERVICING
INSTRUCTIONS
TABLE OF CONTENTS 13
INSTALLER CHECKLIST
Please check the following prior to installation:
- The heating system is clean and has been properly flushed
out using a power flushing machine
- The system has been pressure tested and is leak free.
Locate and repair any leaks as required
- For systems with water content exceeding the maximum
system content (as indicated in the table), an additional
expansion vessel will need to be sized and fitted
- The boiler must be installed on a flat, solid surface
- If installing on a free standing bracket, a suitable weather
proof board must be installed to protect the boiler for the
elements
- Install a fire proof back board if installer on combustible
surfaces
- The fixing method and the wall structure must be sufficient
to hold weight of the boiler.

5
DESCRIPTION OF THE APPLIANCE
TABLE OF CONTENTS
1 DESCRIPTION OF THE APPLIANCE 6
1.1 Characteristics .................................6
1.2 Check and safety devices .........................6
1.3 Identification ...................................6
1.4 Structure ......................................7
1.4.1 Edea HM 20 Ri - Edea HM 40 Ri........... 7
1.4.2 Edea HM 20 Re - Edea HM 40 Re ......... 8
1.5 Technical features ...............................9
1.6 Main water circuit ..............................10
1.7 Sensors.......................................10
1.8 Expansion vessel ...............................10
1.9 Circulation pump ...............................10
1.10 Control panel ..................................11
1.11 Wiring diagram ................................12

6
1 DESCRIPTION OF THE APPLIANCE
1.1 Characteristics
Edea HM R are last generation condensing wall mounted boilers
which
Sime has produced for heating ONLY. Models Edea HM Ri
are designed for installation in rooms, while models
Edea HM
Re
are designed specifically for outdoor installation, protected
against atmospheric agents. The main elements choices made
by
Sime for the Edea HM R boilers are:
– the total pre-mix microflame burner combined with a stain-
less steel heat exchanger with a plaster outer shell, for heat-
ing
–the sealed combustion chamber which can be classified "Type
C" in relation to the room where the boiler is installed, de-
pending on the smoke outlet configuration adopted during
installation
– the electronic control and command circuit board with micro-
processor, for optimal management of the heating system and
modulation of up to 1:10. It allows for connecting room ther-
mostats, an auxiliary sensor for managing kits, and the ex-
ternal sensor. The presence of the external sensor will make
the boiler work at a variable temperature, in other words, the
temperature in the boiler will vary in relation to the outdoor
temperature, in accordance with the optimal climatic curve
selected during the installation phase, resulting in consider-
able energy and financial savings. Moreover, the command
board has an internal connection for inserting an expansion
board which is used to control external relays.
Other special features of the
Edea HM R boilers are:
– the anti-freeze function which activates automatically if the
temperature of the water inside the boiler falls below the
threshold of the value set at parameter "PAR 10" and , if there
is an external sensor, if the external temperature falls below
the threshold of the value set at parameter "PAR 11"
– the anti-blocking function of the pump this activates automat-
ically every 24 hours if no request for heat has been made
–the chimney sweep function lasts 15 minutes and makes the
job of the qualified technician easier when measuring the pa-
rameters and combustion efficiency
– screen display of the operating and self-diagnostic parame-
ters with error code display when the fault occurs. This makes
repair interventions easier and allows appliance operation to
be restored correctly.
1.2 Check and safety devices
The Edea HM R boilers are equipped with the following check and
safety devices:
– thermal safety thermostat 100°C
– 3 bar (300 kPa) relief valve
– heating water pressure transducer
– delivery sensor
– smoke flue gas probe
– return sensor.
NOTE: the proper fan operation of this boiler is checked elec-
tronically from the control panel. Then the use of an air pressure
switch is not required.
d
IT IS FORBIDDEN
To commission the appliance with safety devices
which do not work or which have been tampered with.
a
WARNING
Safety device may only be replaced by professional
qualified personnel using
Sime original spare parts.
1.3 Identification
The Edea HM R boilers can be identified by means of:
1 Packaging label: this is located on the outside of the packag-
ing and provides a code, the serial number of the boiler and
the bar code
2 Technical Data Plate: it is positioned on the outside of the
right side of the boiler and contains the technical and per-
formance data of the appliance and what is required by cur-
rent legislation.
1
2
1
2
Fig. 1
m
CAUTION
Tampering with, removing or failing to display the
identification plate or carrying out any other operation
which does not allow safe identification of the product
or which may hinder installation and maintenance op-
erations.

7
1.4 Structure
1.4.1 Edea HM 20 Ri - Edea HM 40 Ri
21
22
25
11 12
1
2
3
4
6
10
7
9
2324
19
20
8
5
15
16
13
14
17
18
EDEA HM 40 Ri
10
1 Air side heat exchanger
2 Combustion chamber door
3 Oversleeve
4 Flame viewing window
5 Ignition/detection electrode (EAR)
6 Safety thermostat (TS)
7 Boiler delivery sensor (SMC)
8 Air-gas mixer
9 Fan (V)
10 Condensate siphon outlet
11 Control panel
12 Gas valve
13 Water pressure transducer (TPAC)
14 System relief valve (VS)
15 Boiler drain
16 System pump (PI)
17 Automatic bleed valve
18 Automatic by-pass
19 Boiler return probe (SRC)
20 Expansion vessel (VE)
21 Air inlet pipe
22 Air-smoke chamber
23 Air inlet
24 Smoke outlet duct (CSFU)
25 Smoke flue gas probe (SF)
Fig. 2

8
1.4.2 Edea HM 20 Re - Edea HM 40 Re
24
23
25
26
22
3
4
5
6
7
8
10
11
1
2
15
16
13
14
18
17
19
27
21
9
20
EDEA HM 40 Re
10
12
1 Air side heat exchanger
2 Condensate outlet pipe
3 Combustion chamber door
4 Oversleeve
5 Flame viewing window
6 Ignition/detection electrode (EAR)
7 Safety thermostat (TS)
8 Boiler delivery sensor (SMC)
9 Fan (V)
10 Condensate siphon outlet
11 Control panel
12 Gas valve
13 Water pressure transducer (TPAC)
14 System relief valve (VS)
15 Boiler drain
16 System pump (PI)
17 Automatic by-pass
18 Automatic bleed valve
19 Air-gas mixer
20 Expansion vessel (VE)
21 Air inlet pipe
22 Air-smoke chamber
23 Coaxial duct
24 Air inlet
25 Smoke outlet (CSFU)
26 Smoke flue gas probe (SF)
27 Boiler return probe (SRC)
Fig. 3

9
1.5 Technical features
DESCRIPTION
Edea HM R
20 Ri
- 20 Re 40 Ri - 40 Re
CERTIFICATIONS
Country of intended installation AUS
Fuel NATURAL GAS / UNIVERSAL LPG
SAI GLOBAL number SAI-400433
Class NO
x 5 (< 70 mg/kWh)
HEATING PERFORMANCE
HEAT INPUT
Nominal MJ/h 80 158
Minimum MJ/h 10 (NATURAL GAS)
14 (UNIVERSAL LPG)
18 (NATURAL GAS)
21,5 (UNIVERSAL LPG)
HEAT OUTPUT
Nominal (80-60°C) kW 19,7 38,2
Nominal (50-30°C) kW 21,4 40,9
Minimum NATURAL GAS (80-60°C) kW 2,3 4,2
Minimum NATURAL GAS (50-30°C) kW 2,6 4,6
Minimum UNIVERSAL LPG (80-60°C) kW 3,2 5,1
Minimum UNIVERSAL LPG (50-30°C) kW 3,6 5,6
EFFICIENCY
Max useful efficiency (80-60°C) %98,5 96,7
Min useful efficiency (80-60°C) %95,3 93
Max useful efficiency (50-30°C) %107 103,5
Min useful efficiency (50-30°C) %105 101,2
ELECTRICAL SPECIFICATIONS
Power supply voltage 230V - 3 AMP
Frequency Hz 50
Absorbed electrical power W82 133
Electrical protection degree IP X5D
COMBUSTION DATA
Smoke temperature at Max/Min flow (80-60°C) °C 72 / 52 74 / 56
Smoke temperature at Max/Min flow (50-30°C) °C 54 / 40 56 / 38
Smoke flow Max/Min g/s 11,2 / 1,9 18,7 / 2,2
CO
2 at Max/Min flow rate (NATURAL GAS) %9,0 / 9,0 9,2 / 9,0
CO
2 at Max/Min flow rate (UNIVERSAL LPG) %10,0 / 10,0
NOZZLES  GAS
Number of nozzles No. 1
Nozzle diameter (NATURAL GAS-UNIVERSAL LPG) mm 5.0 6,7
Gas consumption at Max/Min flow rate (NATURAL GAS) m
3
/h 2,11 / 0,26 4,17 / 0,47
Gas consumption at Max/Min flow rate (UNIVERSAL
LPG) Kg/h 1,59 / 0,20 3,13 / 0,42
Gas supply pressure (NATURAL GAS/UNIVERSAL LPG) mbar 11,3 / 27,5
kPa 1,13 / 2,75
TEMPERATURE  PRESSURE
Max operating temperature °C 85
Heating adjustment range °C 20÷80
Min./max. operating pressure bar 3 / 0.5
kPa 300 / 50
Water content in boiler l5,1 5,8
Higher Heat Output (Hs)
NATURAL GAS Hs. 37.78 MJ/m
3
(15°C, 1013 mbar/101.3 kPa) - UNIVERSAL LPG Hs. 95.65 MJ/m
3
- 50.37 MJ/Kg (15°C, 1013 mbar/101.3 kPa)

10
1.6 Main water circuit
3
4
5
11
12
13
98
10
14
15 16 17
6
M G RSc S
7
2
1
18
Fig. 4
KEY:
M System delivery
R System return
G Gas supply
Sc Condensate outlet
S Safety valve outlet
1 Air side heat exchanger
2 Combustion chamber
3 Fan (V)
4 Safety thermostat (TS)
5 Boiler delivery sensor (SMC)
6 Automatic by-pass
7 Water pressure transducer (TPAC)
8 Automatic bleed valve
9 System pump (PI)
10 Expansion vessel (VE)
11 Gas valve
12 Boiler drain
13 System relief valve (VS)
14 Condensate siphon outlet
15 System delivery valve
16 Gas valve
17 System return valve
18 Pressure gauge (MA)
1.7 Sensors
The sensors installed have the following characteristics:
– Dual sensor (thermal safety/output) NTC R25°C; 10kΩ β25°-
85°C: 3435
– external sensor NTC R25°C; 10kΩ β25°-85°C: 3435
Correspondence of Temperature Detected/Resistance
Examples of reading:
TR=75°C → R=1925Ω
TR=80°C → R=1669Ω.
TR
0°C 1°C 2°C 3°C 4°C 5°C 6°C 7°C 8°C 9°C
Resistance R (Ω)
0°C 27279
17959
12090
8313
5828
4161
3021
2229
1669
1266
973
26135
17245
11634
8016
5630
4026
2928
2164
1622
1232
25044
16563
11199
7731
5440
3897
2839
2101
1577
1199
24004
15912
10781
7458
5258
3773
2753
2040
1534
1168
23014
15289
10382
7196
5082
3653
2669
1982
1491
1137
22069
14694
9999
6944
4913
3538
2589
1925
1451
1108
21168
14126
9633
6702
4751
3426
2512
1870
1411
1079
20309
13582
9281
6470
4595
3319
2437
1817
1373
1051
19489
13062
8945
6247
4444
3216
2365
1766
1336
1024
18706
12565
8622
6033
4300
3116
2296
1717
1300
998
10°C
20°C
30°C
40°C
50°C
60°C
70°C
80°C
90°C
100°C
1.8 Expansion vessel
The expansion vessel installed on the boilers has the following
characteristics:
Description U/M
Edea HM R
20 Ri
- 20 Re 40 Ri - 40 Re
Total capacity l9.0 10.0
Prefilling pressure kPa 100
bar 1.0
Useful capacity l5.0 6.0
Maximum system content (*) l124 140
(*) Conditions of:
Average operating temperature 70°C (with high tempera-
ture system 80/60°C)
Start temperature at system filling 10°C.
m
CAUTION
– For systems with water content exceeding the max-
imum system content (as indicated in the table) an
additional expansion vessel must be prearranged.
– The difference in height between the relief valve
and the highest point of the system cannot exceed
6 metres. If the difference is greater than 6 metres,
increase the prefilling pressure of the expansion
vessel and the system when cold by 0.1 bar (10 kPa)
for each meter increase.
1.9 Circulation pump
The flow-head performance curve available for the heating sys-
tem is shown in the graph below.
RESIDUAL HEAD (mbar/kPa)
0
0800 1000 1200 1400 1600600400200
100
/10
200
/20
300
/30
400
/40
500
/50
600
/60
700/70
40Ri - 40Re
20Ri - 20Re
WATER FLOW RATE (l/h)
Fig. 5
m
CAUTION
The appliance is equipped with a by-pass which en-
sures water circulation in the boiler when the thermo-
static valves or manual valves are used in the system.

11
1.10 Control panel
321
Fig. 6
1 FUNCTIONAL BUTTONS
yIf pressed once or more times for at least 1 second
during normal operation, this button allows the user to
change the appliance’s operating mode in a cyclical se-
quence (Stand-by – Summer – Winter). If the appliance
is experiencing a resettable fault, it can be used to un-
lock it.
<This allows the user to scroll through the parameters or
decrease the values.
>This allows the user to scroll through the parameters or
increase the values.
CProgramming connector cover plug.
1 KNOBS
tThe heating knob allows the user to set the heating tem-
perature to between 20 and 80°C during normal opera-
tion.
NOTE: pressing any button for more than 30 seconds causes a
fault to appear on the display (ALL 42) without preventing the
appliance’s operation. The warning disappears when normal
conditions are restored.
2 DISPLAY
l
“SUMMER” . The symbol for Summer mode is displayed.
If the symbols land nare flashing, this indicates
that the chimney sweep function is active.
n
“WINTER” . This symbol appears when the boiler is oper-
ating in Winter mode. If no operating modes have been
enabled both symbols land nwill be off.
d
“RESET REQUEST” . The wording indicates that, once the
fault has been repaired, the appliance’s normal opera-
tion can be reset by pressing the ybutton.
t
“HEATING” . This symbol lights up during heating oper-
ation or during the "chimney sweep function It flashes
during the selection of the heating set point.
f
“BLOCK” DUE TO NO FLAME .
F
“FLAME PRESENCE" .
v
“POWER LEVEL” . Indicates the power level at which the
appliance is operating.
p
“PARAMETER" . This indicates that the user may be in
parameter setting/display, or "info" or "counter", or in
"activated alarms" (history).
A
“ALARM" . This indicates that a fault has occurred. The
number specifies the cause which generated the alarm.
z
“CHIMNEY SWEEP" . This indicates that the "chimney
sweep function" has been activated.
a
“HEATING SYSTEM PRESSURE" . Display of heating system
pressure.
E
"ECO", ALTERNATIVE ENERGY SOURCES . Where active, it
indicates that there is a solar system available.
c
“MAINTENANCE REQUEST” . If active, it indicates that it is
time to perform maintenance on the appliance.
m
CAUTION
– Access to the control panel of models Edea HM 20
Re
and Edea HM 40 Re is possible after loosening
screws (1) and removing panel (2).
– On completion of the operations, refit the panel on
the control panel and secure fully.
2
1
Fig. 7

12
1.11 Wiring diagram
TRA
EVG
FU
CN11
BL BL
G G
BK BK
TA1
SE
BL
BL
BR
BR
PI
BL
BR
230 V - 50 Hz
L
N
CN6
CN5
CN3
CN17
CN4 CN1
CN15
CN14
CN13CN12
CN2
R
R
V
SF
TS
SMC
BK
BK
BL
R G BK BL
BL BR
BL
4 3 2 1
BL
BK
G
R
BL
BR
EAR
SRC
BK BK
TA2
321 4 5 6
R
OR
G
TPAC
5V GND OUT
CR
CR Remote control (instead of
air thermostat)
EAR Ignition / Detection electrode
EVG Gas solenoid valve
FU Fuse (3.15AT - 250V)
L Line / Live
N Neutral
PI System pump
SE External temperature sensor
SF Smoke flue gas probe
SMC Boiler delivery sensor
SRC Boiler return probe
TA1-TA2 Room thermostat
TPAC Water pressure transducer
TRA Ignition transformer
TS Safety thermostat
V Fan
BL Blue
BR Brown
BK Black
G Green
OR Orange
R Red
WH White
To connect the "Air Thermostat" or, alternatively the "Remote Control", remove the bridge between terminals 5-6.
Fig. 8
m
CAUTION
Users must:
– To use an omnipolar cut-off switch, disconnect
switch in compliance with AS/NZS Standards
which
ensures complete cut-off in overvoltage category III
conditions (i.e. where there is at least 3 mm between
the open contacts)
.
– Respect the connections L (Live) - N (Neutral).
– Ensure that the special power cable is only replaced
with a cable ordered as a spare part and connected
by professionally qualified personnel.
m
CAUTION
Users must:
– Connect the earth wire to an effective earthing sys-
tem.
The manufacturer is not responsible for any dam-
age caused by failure to earth the appliance or failure
to observe the information provided in the wiring dia-
grams
.
d
IT IS FORBIDDEN
To use water pipes for earthing the appliance.

13
INSTALLATION AND SERVICING INSTRUCTIONS
TABLE OF CONTENTS
2 INSTALLATION 14
2.1 Receiving the product ...........................14
2.2 Dimensions and weight..........................14
2.3 Handling ......................................14
2.4 Installation room ...............................14
2.5 New installation or installation of a replacement
appliance .....................................15
2.6 Cleaning the system ............................15
2.7 Water system treatment .........................15
2.8 Boiler installation ..............................16
2.9 Plumbing connections...........................16
2.9.1 Plumbing accessories (optional) ......... 16
2.10 Condensate outlet/collection .....................17
2.11 Gas supply ....................................17
2.12 Connecting the flue .............................18
2.12.1 Flue Terminal Positions ................ 18
2.13 Smoke outlet and combustion air inlet .............19
2.13.1 Coaxial duct (Ø 60/100mm and Ø 80/125mm) .... 19
2.13.2 Edea HM 20 Re - Edea HM 40 Re ........ 20
2.14 Electrical connections...........................20
2.14.1 External temperature sensor............ 21
2.14.2 Chrono-thermostat or Air Thermostat .... 22
2.14.3
EXAMPLE of use of the command/control
device on some types of heating systems ... 22
2.15 Refilling or emptying............................23
2.15.1 REFILL operations .................... 23
2.15.2 EMPTYING operations ................. 23
3 COMMISSIONING 24
3.1 Preliminary operations ..........................24
3.2 Before commissioning ..........................24
3.2.1 Automatic self-calibrating procedure ..... 24
3.3 Parameter setting and display ....................25
3.4 List of parameters..............................25
3.5 Display of operating data and counters.............27
3.6 Checks .......................................28
3.6.1 Chimney sweeper function.............. 28
3.7 Gas conversion.................................29
4 MAINTENANCE 30
4.1 Adjustments...................................30
4.2 External cleaning...............................30
4.2.1 Cleaning the cladding.................. 30
4.3 Cleaning the inside of the appliance ...............30
4.3.1 Removing components................. 30
4.3.2 Cleaning the burner and the combustion
chamber ............................ 31
4.3.3
Checking the ignition/detection electrode .... 31
4.3.4 Final operations ...................... 31
4.4 Checks .......................................31
4.4.1 Checking the smoke duct............... 31
4.4.2
Checking the expansion vessel pressure .... 31
4.5 Unscheduled maintenance .......................32
4.6 Malfunction codes and possible solutions ..........32
4.6.1 Maintenance request .................. 33
5 COMMISSIONING BOILER CHECKLIST 34
6 EXPLODED VIEWS 35
7 REMOVING COMPONENTS 44
7.1 Remove coaxial duct ............................44
7.2 Remove panels ................................44
7.2.1 Front panel .......................... 44
7.2.2 Side panels .......................... 45
7.3 Rotate control panel ............................45
7.4 Remove/replace sensor and thermostat............45
7.4.1 Smoke flue gas probe.................. 45
7.4.2 Delivery sensor ....................... 46
7.4.3 Heat safety thermostat................. 46
7.5 Remove electronic board ........................46
7.6 Remove/replace combustion head unit and fan . . . . . . 47
7.7 Remove/replace the ignition and flame detection
electrode .....................................48
7.8 Remove/replace the siphon ......................48
7.9 Remove/replace gas valve .......................49
7.10 Remove/replace the expansion vessel .............50
7.11 Remove/replace system pump....................50

14
2 INSTALLATION
m
CAUTION
The appliance must only be installed by the Sime Tech-
nical Service or by qualified professionals
who MUST
wear
suitable protective safety equipment.
2.1 Receiving the product
Edea HM R appliances are delivered in a single unit protected by
cardboard packaging.
Fig. 9
The plastic bag found inside the packaging contains the follow-
ing:
–Installation, use and maintenance manual
– Sheet metal template for boiler assembly
– Certificate of warranty
– Hydrostatic test certificate
– System booklet
– Bag with expansion plugs
– Accessory bag
d
IT IS FORBIDDEN
To leave packaging material around or near children
since it could be dangerous. Dispose of it as pre-
scribed by legislation in force.
2.2 Dimensions and weight
H
WD
Fig. 10
Description
Edea HM R
20 Ri 20 Re 40 Ri 40 Re
W (mm) 400 250 400 450
D (mm) 250 (*) 254 (*) 250 (*) 254 (*)
H (mm) 700 917 700 917
Weight (kg) 26 31 29 34,5
(*) Without removable panel.
2.3 Handling
Once the packaging has been removed, the appliance is to be
handled manually, tilting it slightly, lifting it and applying pres-
sure in the points indicated in the figure.
Fig. 11
d
IT IS FORBIDDEN
To grip the appliance casing. Hold the "solid" parts of
the appliance such as the base and structural frame.
a
WARNING
Use suitable tools and accident protection when re-
moving the packaging and when handling the appli-
ance. Observe the maximum weight that can be lifted
per person.
2.4 Installation room
The room where the appliance is to be installed must comply
with the technical regulations and legislation in force. No aer-
ation vents are required because the approved installation is
ONLY “TYPE C” (refer to the regulations).
The minimum temperature of the installation room must NOT
be lower than
-5 °C .
m
CAUTION
– Make sure that the appliance is protected against
direct sunlight, the weather and damp and wet con-
ditions.
–Before assembling the appliance, the installer
MUST
make sure that the wall supports the weight.
– Remember to consider the space needed in order to
access the safety/adjustment devices and to carry
out maintenance interventions (see Fig. 12).

15
APPROXIMATE MINIMUM DISTANCES
≥ 50 mm
≥ 300 mm
≥ 900 mm
Fig. 12
2.5 New installation or installation of a re-
placement appliance
When Edea HM R boilers are installed on old systems or systems
requiring updating, it is recommended the installer checks with
appliance supplier for advice:
– the connecting flue pipe is suitable for the combustion tem-
perature of the appliance, calculated and manufactured in
compliance with Standards, current editions, that it is as
straight as possible, air tight, isolated, with no obstructions or
restriction and that it has appropriate condensate collection
and evacuation systems
– the electrical system has been manufactured in compliance
with specific Standards and by professionally qualified per-
sonnel
–the fuel delivery line and the tank (UNIVERSAL LPG) comply
fully with specific Standards
– the expansion vessel ensures total absorption of the fluid di-
lation in the system
–the pump flow-head performance is sufficient for the system
characteristics
– the system is clean, free of any sludge, deposits, de aerated
and air tight. For system cleaning, please refer to the relevant
paragraph.
m
CAUTION
The manufacturer declines all liability for any damage
caused by an incorrect implementation of the smoke
outlet or for an excessive use of additives.
m
CAUTION
Gas pipe sizing, flue installation and appliance ventila-
tion must comply with AS/NZS 5601.
d
IT IS FORBIDDEN
Do not install the boiler in special environments that
may limit its optimum operation (e.g. marine environ-
ment).
2.6 Cleaning the system
Before installing the appliance on a newly constructed system
or replacing a heat generator on an existing system, it is im-
portant that the system is thoroughly cleaned to remove sludge,
slag, dirt, residue etc.
Before removing an old heat generator from an existing system,
it is recommended that the user:
– puts a descaling additive into the water system
– allows the system to work with the generator active for a few
days
– drains the dirty water from the system and flushes the system
with clean water once or more than once.
If the old generator has already been removed or is not availa-
ble, replace it with a pump to circulate water in the system and
then proceed as described above.
Once cleaning operations have been carried out and before
installing the new appliance, it is recommended that a fluid is
added to the water system to protect it from corrosion and de-
posits.
m
CAUTION
– For further information on the type of additive and
usage, please contact the appliance manufacturer.
– Please remember that you
MUST install a Y filter
(not supplied with the appliance) on the heating sys-
tem return (R).
2.7 Water system treatment
When filling and restoring the system it is good practice to use
water with:
– aspect: clear if possible
– Ph: 6÷8
– hardness: < 25°f.
If the water characteristics are different from those indicated, it
is recommended that a safety filter is used on the water deliv-
ery pipe to retain impurities, and a chemical treatment system
to protect against possible deposits and corrosion which could
affect boiler operation.
If the systems are only low temperature systems, it is recom-
mended that a product is used to prevent the development of
bacteria.
In any case, please refer to and comply with the legislation and
specific technical standards in force in the country where the
appliance will be used.

16
2.8 Boiler installation
The boilers Edea HM R they leave the factory with the sheet met-
al template for mounting them on a solid wall.
For installation:
– remove the coaxial duct and the casing (only for
Edea HM 20 Re
and
Edea HM 40 Re )
– place the steel sheet template (2) (if supplied) on the wall (1)
– make the holes and insert the expansion plugs (3)
– screw the threaded pins (4)
– insert the boiler into the threaded pins (4) and tighten the nut
(5) together with the washer (6)
– hook the boiler onto the plugs.
2
1
3
4
6
5
Fig. 13
m
CAUTION
The wall on which the appliance is to be hung must
be of adequate strength and capable of holding the
weight of the appliance and associated components
and pipework.
m
CAUTION
The height of the boiler is to be such that disassembly
and maintenance interventions are facilitated.
2.9 Plumbing connections
The plumbing connections have the following characteristics
and dimensions.
Edea HM 20 Ri - Edea HM 40 Ri
171 (20Ri)
21 (40Ri)
93
130 130 ==
400
M
Sc
Sc
G R
= =
F
49 (20Ri)
90 (40Ri)
Fig. 14
Edea HM 20 Re - Edea HM 40 Re
130 == 130
450
M
Sc
G R
178 (20Re)
27 (40Re)
97
= =
FSc
73
(20Re)
115
40Re)
Fig. 15
Description
Edea HM R
20 Ri 20 Re 40 Ri 40 Re
M - System delivery Ø 3/4" G
R - System return Ø 3/4" G
G - Gas supply (*) Ø 3/4" G
Sc - Condensate outlet Ø 25 mm
F - Filling Ø 1/2" G
(*) Brass adaptor for gas connection supplied. G3/4" to R3/4".
2.9.1 Plumbing accessories (optional)
To facilitate plumbing and gas connections to the systems, the
accessories as shown in the table below are available and are to
be ordered separately from the boiler.
DESCRIPTION CODE
Installation plate 8075441
Curve kit 8075418
Curve and valve kit with connections
from DIN to SIME 8075443
Cocks kit 8091806
Valve kit with connections from DIN to
SIME 8075442
Wall mount replacement kit for other
makers 8093900
Fitting protection kit (for 25-30-35-40
kW models) 8094530
NOTE: kit instructions are supplied with the accessory itself or
are to be found on the packaging.

17
2.10 Condensate outlet/collection
In order to collect the condensate, it is recommended that:
– the appliance condensate outlets and the smoke outlet are
ducted
– a neutralising device is prearranged
– the outlet incline is
>3% .
m
CAUTION
– The condensate outlet duct must be airtight, suita-
bly sized to that of the siphon and must not be re-
stricted at any point.
–The condensate outlet must be constructed in full
compliance of the National or Local regulations in
force.
– Before commissioning the appliance, fill the siphon
with water.
2.11 Gas supply
Edea HM R boilers leave the factory prearranged for gas NAT-
URAL GAS
and can also work with UNIVERSAL LPG without the
need for any type of mechanical conversion. Select parame-
ter
"03" (see "Parameter setting and display") and set the type
of gas to be used.
If changing the type of gas to be used, carry out the entire appli-
ance "Gas conversion" phase.
The boiler must be connected to the gas mains in full com-
pliance with the installation standards in force in the country
where the appliance will be used.
Before connecting the boiler to the gas mains, the user must
ensure that:
– the type of gas is correct for the appliance
– the pipes are clean
– the gas supply pipe is the same dimension as or greater than
that of the boiler fitting (G3/4") and with a load loss less than
or equal to that contemplated between the gas mains and the
boiler.
a
WARNING
Once installation has been completed, check that
the joints are air tight as indicated in the installation
Standards.
m
CAUTION
It is recommended that the gas line has a suitable fil-
ter.

18
2.12 Connecting the flue
2.12.1 Flue Terminal Positions
f
c
n
k
k
j
j j hhe
T
e
h
T
g
P
w
d
b
d
T
g
c
a
M
I
Door
Fig. 16
DESCRIPTION
Edea HM R
Min. Clearance (mm)
Flue terminal T
Mechanical air inlet I
Gas meter M
Electricity meter of fuse box P
Shaded area indicates prohibited area
Below eaves, balconies and other projections (Appliances over 50MJ/h) a300
From the ground, above a balcony or other surface b300
From a return wall or external corner c300
From a gas meter d1000
From an electricity meter or fusebox/breaker panel e500
From a drain pipe or soil pipe f75
Horizontally from any building structure or obstruction facing a flue terminal g500
From any other flue terminal, cowl or combustion air intake h300
Horizontally from any opening window, door, non-mechanical air inlet or other opening into a
building with the exception of sub-floor ventilation j300
From a mechanical air inlet including a spa blower. k1000
Vertically below an opening window, non-mechanical air inlet or any other opening into a
building with the exception of sub-floor ventilation n500
m
CAUTION
– Use as a guide only. See AS/NZS5601 for flue design
details.
– Refer to AS/NZS5601, current version, or local gas fit-
ting rules for specific locations.
m
CAUTION
– The location of the flue terminal must comply with
the clearances shown on this page. If you are unsure
about clearances not indicated here, in general re-
fer to AS/NZS 5601, or your local authority.
– All measurements are the minimum clearances re-
quired.
–Terminals must be positioned so to avoid combus-
tion products entering the building.
–When the installer installs the flue through a wall,
the wall must be adequately sealed and the hole
must not affect the building structure or fire resist-
ance.
–Install a fire proof back board if installing on com-
bustible surfaces.
–The fixing method and the wall structure must be
sufficient to hold the weight of the boiler.

19
2.13 Smoke outlet and combustion air inlet
Edea HM R boilers must be equipped with appropriate smoke
flue ducts and combustion air inlet ducts. These ducts are con-
sidered an integral part of the boiler and are provided by
Sime
as an accessory kit, to be ordered separately from the appliance
on the basis of the type permitted and the system requirements.
Permitted types of exhausts and ducts
C43
C33
C13
Fig. 17
Outlet Description Coaxial duct
Ø 60/100 Ø 80/125
C13
Concentric wall smoke outlet The
pipes can start from the boiler but
the outlets must be concentric or
close together (no more than 50
cm) to be subject to similar wind
conditions
X X
C33
Concentric wall smoke outlet The
pipes can start from the boiler but
the outlets must be concentric or
close together (no more than 50
cm) to be subject to similar wind
conditions
X X
C43
Outlet and inlet in shared or
separate flue pipes but subjected to
similar wind conditions
X X
C63 Outlet and inlet made from pipes which are sold and
certified separately
All the measurements are in mm.
m
WARNINGS
– The smoke flue and the connection to the flue pipe
must be in compliance with the national and local
standards and legislation in force in the country
where the appliance will be used.
– The use of rigid ducts which are resistant to tem-
perature, condensate, mechanical stress and are
air-tight is compulsory.
– Outlet ducts which are not isolated are a risk of dan-
ger.
2.13.1 Coaxial duct (Ø 60/100mm and Ø 80/125mm)
Coaxial accessories
Description Code
Ø 60/100 mm Ø 80/125 mm
Coaxial duct kit 8096250 8096253
Extension W. 1000 mm 8096150 8096171
Extension W. 500 mm 8096151 8096170
Vertical extension W. 140 mm
with smoke analysis take-off
point
8086950 -
Adapter for Ø 80/125 mm -8093150
Additional 90° curve 8095850 8095870
Additional 45° curve 8095950 8095970
Tile with joint 8091300 8091300
Roof outlet terminal W. 1284
mm 8091205 8091205
Load loss - Equivalent lengths
Model Leq (linear metres)
Ø 60/100 mm Ø 80/125 mm
90° curve 1,5 2
45° curve 1 1
With a Ø 60/100 mm coaxial outlet duct exceeding 3 metres for
models
40 Ri - 40 Re , remove, by turning it clockwise, the smoke
outlet diaphragm (1) positioned as shown in the picture. With a
Ø 80/125 mm coaxial outlet duct exceeding 4 metres, remove, by
turning it clockwise, the smoke outlet diaphragm (1) positioned
as shown in the picture.
a
b
1
40 Ri/Re
Fig. 18
Minimum-Maximum Lengths
Model
Duct Length Ø 60/100 Duct Length Ø 80/125
W
Horizontal
(m)
H Vertical
(m)
W
Horizontal
(m)
H Vertical
(m)
Min.
Max. Min. Max. Min. Max. Min. Max.
Edea HM
20 Ri
- 6 1.3 8 - 12 1.2 15
Edea HM
40 Ri
- 4 1.3 6 - 10 1.2 13

20
2.13.2 Edea HM 20 Re - Edea HM 40 Re
Boilers Edea HM 20 Re and Edea HM 40 Re are supplied already
complete with coaxial ducts for smoke outlet and combustion
air inlet.
65
3
2
1
4
Fig. 19
KEY:
1 90° coaxial bend
2 Coaxial duct (supplied, but not fitted)
3 Air inlet
4 Smoke outlet
5 Outlet terminal (supplied, but not fitted)
6 Take-off point for smoke analysis
115
223
450
Ø 60/100
196
Fig. 20
2.14 Electrical connections
The power cable must be connected to a 230V (±10%) ~ 50 Hz
network, observing L-N polarity and the earth connection. The
network must have an omnipolar switch III overvoltage, in com-
pliance with the installation rules.
If this cable needs to be replaced, an original spare must be re-
quested from
Sime .
Therefore only the connections of the original components as
shown in the table are needed. These are to be ordered sepa-
rately from the boiler.
DESCRIPTION CODE
External sensor kit (ß=3435, NTC 10KOhm at 25°C) 8094101
Remote control HOME (open therm) 8092280
Remote control HOME PLUS (open therm) 8092281
m
CAUTION
The maintenance interventions described must ONLY
be carried out the professionally qualified personnel.
a
WARNING
Before carrying out any interventions described:
– set the main system switch to "OFF"
– close the gas valve
– make sure that no hot parts inside the appliance are
touched.
OFF
Fig. 21
To facilitate introduction of the connection wires of the optional
components into the boiler:
– disassemble the smoke outlet duct of the
Edea HM 20 Re and
Edea HM 40 Re , if fitted
– remove the screws (1), pull the front panel (2) forwards and
release it from the top by lifting it
1
2
Fig. 22