Sime MURELLE HE 70 R ErP Manual

199838
ENSURE THAT THESE
INSTRUCTIONS ARE LEFT
FOR THE USER AFTER
COMPLETION OF THE
BENCHMARK SECTION
PLEASE READ THE
IMPORTANT NOTICE
WITHIN THIS GUIDE
REGARDING YOUR BOILER
WARRANTY
USER, INSTALLATION AND SERVICING INSTRUCTIONS
MURELLE
HE 70 R ErP
Cod. 6328424 - 04/2017

All descriptions and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes and
improvements in our products that may affect the accuracy of the information contained in this manual.
This boiler may require 2 or more operatives to move it into its installation site, remove it from its packaging and
during movement into its installation location. Manoeuvring the boiler may include the use of a sack truck and
involve lifting pushing and pulling.
Caution should be exercised during these operations.
Operatives should be knowledgeable in handling techniques when performing these tasks and the following pre-
cautions should be considered:
– Grip the boiler at the base
– Be physically capable
– Use personal protective equipment as appropriate e.g. gloves, safety footwear.
During all manoeuvres and handling actions, every attempt should be made to ensure the following unless unavoi-
dable and/or the weight is light.
– Keep back straight
– Avoid twisting at the waist
– Always grip with the palm of the hand
– Keep load as close to the body as possible
– Always use assistance
WARNING
Caution should be exercised when performing any work on this appliance.
Protective gloves and safety glasses are recommended.
– Avoid direct contact with sharp edges.
– Avoid contact with any hot surfaces.
NOTICE
Please be aware that due to the wet testing of the appliance, there may some residual water in the hydraulic cir-
cuit.
– Protect any surfaces, carpets or floorings.
– Use a suitable container to catch any water that escape when removing the protective caps from the connec-
tions.
SAFE HANDLING
IMPORTANT NOTICE
For the first year all of our appliances are protected by our manufacturer’s guarantee which covers both
parts and labour.
As you would expect from Sime Ltd, it is our aim to provide our valued customers with the best in after sales
and service.
To take advantage of any extended warranty offered, all you have to do is to adhere to these 3 simple condi-
tions:
• The installation must be carried out to Manufacturers Standards by a Gas Safe Registered Engineer, and
recorded in the installation manual.
• The appliance must be registered with both Sime Ltd and Gas Safe within 30 days of installation.
• The appliance must be serviced every 12 months, within 30 days of the anniversary of the installation date,
by either Sime Ltd or a Gas Safe registered engineer- ensuring that the Benchmark service record in the
installation manual is completed.
Failure to comply with the above will result in only the 12 month warranty being offered.
In the absence of any proof of purchase, the 12 month warranty period will commence from the date of manu-
facture of the boiler as shown on the appliance data plate.

Murelle HE 70 R ErP: Gas Council number 47-283-84
IMPORTANT INFORMATION
IT IS A STATUTORY REQUIREMENT THAT ALL GAS APPLIANCES ARE INSTALLED BY COMPETENT PERSONS, IN
ACCORDANCE WITH THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS (CURRENT EDITION).
The manufacturer’s instructions must not be taken as overriding any statutory requirements, and failure to comply with
these regulations may lead to prosecution.
No modifications to the appliance should be made unless they are fully approved by the manufacturer.
GAS LEAKS: DO NOT OPERATE ANY ELECTRICAL SWITCH, OR USE A NAKED FLAME. TURN OFF THE GAS SUPPLY AND
VENTILATE THE AREA BY OPENING DOORS AND WINDOWS contact the gas emergency service on 0800111999.
The Benchmark Scheme
Sime Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation
and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing
to optimisesafety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater Industry Council.
For more information visit www.centralheating.co.uk.
Please ensure that the installer has fully completed the Benchmark Checklist in the use and maintenance
section of the installation instructions supplied with the product and that you have signed it to say that you
have received a full and clear explanation of its operation.
The installer is legally required to complete a commissioning checklist as a means of complyng with the
appropriate Building Regulations (England and Wales).
All installations must be notified to Local Area Building Control either directly or through a Competent
Persons Scheme.
A Building Regulations Compliance Certificate will then be issued to the customer who should, on receipt,
write the Notification Number on the Benchmark Checklist.
This product should be serviced regularly to optimise its safety, efficiency and performance.
The service engineer should complete the relevant Service Record on the Benchmark Checklist after each
service.The Benchmark Checklist may be required in the event of any warranty work and as supporting docu-
mentation relating to home improvements in the optional documents section of the Home Information Pack.
CONFORMITY
Our Company declares that MURELLE HE 70 R ErP boilers comply with the essential requirements of the following
directives:
- Boiler Efficiency Directive 92/42/EEC
- Gas Appliances Directive 2009/142/EC
- Electromagnetic Compatibility Directive 2014/30/UE
- Low Voltage Directive 2014/35/UE
- Ecodesign Directive 2009/125/EC
- Regulation (EU) N. 813/2013 - 811/2013

CONTENTS
1 DESCRIPTION OF THE BOILER ...................................................................................................................... page 6
2 INSTALLATION ............................................................................................................................................... page 9
3 CHARACTERISTICS ........................................................................................................................................ page 22
4 COMMISSIONING, USE AND MAINTENANCE,INCLUDING BENCHMARK ................................................... page 30
5 FAULT FINDING ............................................................................................................................................. page 42
6 REPLACEMENT OF PARTS ............................................................................................................................ page 43
7 EXPLODED VIEWS .......................................................................................................................................... page 44
8 APPENDIX 1 ................................................................................................................................................... page 48
USER INSTRUCTIONS .................................................................................................................................... pag. 62
PRODUCT DETAILS ........................................................................................................................................ pag. 64
ANNEX AA.1 ................................................................................................................................................... pag. 65
IMPORTANT
When carrying out commissioning of the boiler, you are highly recommended to perform the following
checks:
– Make sure that there are no liquids or inflammable materials in the immediate vicinity of the boiler.
– Make sure that the electrical connections have been made correctly and that the earth wire is con-
nected to a good earthing system.
– Open the gas valve and check the soundness of the connections, including that of the burner.
– Make sure that the boiler is set for operation for the type of gas supplied.
– Check that the flue pipe for the outlet of the products of the combustion is unobstructed and has been
properly installed.
– Make sure that any shutoff valves are open.
– Make sure that the system is charged with water and is thoroughly vented.
– Check that the circulating pump is not jammed.
– Purge the system, bleeding off the air present in the gas pipe by operating the pressure relief valve on
the gas valve inlet.
– Complete the checklist included in this manual.
Please refer to commissioning instructions for filling in the checklist at the back of this installation guide.
Note: All Gas Safe registered installers carry a ID Card.
You can check your installer is Gas Safe Registered by calling 0800 408 5577
VERY IMPORTANT!
PLEASE MAKE SURE YOUR COMMISSIONING CHECKLIST AND THE SERVICE INTERVAL RECORDS
ENCLOSED FILLED IN CORRECTLY.
ALL GAS SAFE REGISTERED INSTALLERS CARRY A GAS SAFE ID CARD.
BOTH SHOULD BE RECORDED IN YOUR COMMISSIONING CHECKLIST AND A SERVICE INTERVAL RECORDS.
YOU CAN CHECK YOUR INSTALLER IS GAS SAFE REGISTEREDBY CALLING
ON 0800 408 5500 OR ALTERNATIVELY WWW.GASSAFEREGISTER.CO.UK

6
1.1 INTRODUCTION
MURELLE HE 70 R ErP are premixed gas
condensing heating modules for heating
only with wide range of power modula-
tion (from 20% to 100% of power) desig-
ned for single installation and in modular
systems with several generators con-
nected in sequence/cascade and inde-
pendent from each other. For optimum
installation and operation, always follow
the instructions provided in this manual.
1 DESCRIPTION OF THE BOILER
120 161
149
CS CA
450
214
95
130
82
490
145
385
700 113
249
128
178
268
15
721
M
R3
R
S3
G
C
Fig. 1
1.2 DIMENSIONS (fig. 1)
FIXTURES
R Heating return G 1” (UNI - ISO 228/1)
M Heating flow G 1” (UNI - ISO 228/1)
G Gas connection G 3/4” (UNI - ISO 228/1)
R3 D.H.W. tank return G 1” (UNI - ISO 228/1)
C Optional filling
connection G 1/2” (UNI - ISO 228/1)
S3 Condensation outlet ø 25
S1 Safety valve discharge
CA Air inlet ø 80
CS Exhaust ø 80
S1

7
MURELLE HE 70 R ErP
Heat output
Nominal (80-60°C) (Pn max) kW 63.4
Nominal (50-30°C) (Pn max) kW 69.4
Reduced (80-60°C) (Pn min) kW 13.6
Reduced (50-30°C) (Pn min) kW 15.3
Heat input (*)
Nominal (Qn max - Qnw max) kW 65.0
Reduced (Qn min - Qnw min) kW 14.0
Min/max useful yield (80-60°C) % 97.0 / 97.5
Min/max useful yield (50-30°C) % 109.1 / 106.7
Useful yield at 30% of the load (40-30°C) % 108.3
Losses after shutdown to 50°C (EN 15502) W 86
Supply voltage V-Hz 230-50
Adsorbed power consumption (Qn max - Qn min) W 187 - 116
Electrical protection grade IP X4D
Energy efficiency
Seasonal energy efficiency class of the heating system A
Seasonal energy efficiency of the heating system % 92
Sound power of the heating system dB (A) 69
C.H. setting range °C 20/80
Water content boiler l 2.3
Maximum water head (PMS) bar 3.5
Maximum temperature (T max) °C 85
Capacity of the heating expansion vessel l --
Pressure of the heating expansion vessel bar --
Exhaust fumes temperature at max flow rate (80-60°C) °C 87
Exhaust fumes temperature at min. flow rate (80-60°C) °C 74
Exhaust fumes temperature at max flow rate (50-30°C) °C 55
Exhaust fumes temperature at min. flow rate (50-30°C) °C 48
Smokes flow min/max g/s 4.4 / 22.2
CO2 at max/min flow rate (G20) % 9.0 / 9.0
CO2 at max/min flow rate (G31) % 10.0 / 10.2
NOx measured (EN 15502-1:2015) mg/kWh 26.5
PIN number 1312CS6213
Category II2H3P
Type B23-B53-B23P-B53P-C13-C33-C43-C53-C83
NOx emission class (EN 15502-1:2015) 6 (< 56 mg/kWh)
Weight when empty kg 39
Main burner nozzle
Quantity nozzles n° --
G20 nozzle diameter ø mm --
G31 nozzle diameter ø mm --
Consumption at maximum/minimum flow rate
Maximum (G20) m3/h 6.78
Minimum (G20) m3/h 1.43
Maximum (G31) kg/h 2.65
Minimum (G31) kg/h 0.57
Gas supply pressure
(G20) mbar 20
(G31) mbar 37
(*) Heat input of the heating system measured using lower heating value (LHV)
1.3 TECHNICAL FEATURES

8
8
4
7
5
6
10
11
2
13
14
17
12
1
CR3
G
S3
MR
1.4 FUNCTIONAL DIAGRAM (fig. 2)
Fig. 2
KEY
1 Gas valve
2 Condensate drain trap
4 Fan
5 Heating flow sensor (SM)
6 Safety thermostat 100°C
7 Exhaust sensor (SF)
8 Primary heat exchanger
10 Heating return sensor (SR)
11 Water pressure transducer
12 Auto air vent
13 Pump high efficiency
14 Drain vent
17 Safety valve 3.5 bar
CONNECTIONS
R Heating return
M Heating flow
G Gas connection
S3 Condensation outlet
C Optional filling point
R3 D.H.W. tank return
1.5 MAIN COMPONENTS (fig. 3)
KEY
1 Control panel
2 Safety thermostat
3 Heating flow sensor (SM)
4 Ignition transformer
5 Ionisation electrode
6 Primary heat exchanger
7 Air release vent
8 Exhaust probe (SF)
9 Detection electrode
10 Fan
11 Pump high efficiency
Fig. 3

9
Fig. 3/a
1.6 TECHNICAL DATA PLATE (fig. 3/a)
MODEL
SERIAL NUMBER
YEAR OF CONSTRUCTION
WATER CONTENT IN BOILER
HEAT INPUT MAX
HEAT OUTPUT MAX (80-60°C)
HEAT OUTPUT MAX (50-30°C)
MAX OPERATING PRESSURE
CONTENTS D.H.W.
HEAT INPUT MAX D.H.W.
MAX OPERATING PRESSURE D.H.W.
D.H.W. FLOW RATE
POWER SUPPLY
MAX POWER ABSORBED
COUNTRIES OF DESTINATION
CATEGORY
TYPE
CODE
DIRECTIVE OF REFERENCE
PIN NUMBER
HEAT INPUT MIN
HEAT OUTPUT MIN (80-60°C)
HEAT OUTPUT MIN (50-30°C)
MAX OPERATING PRESSURE
HEAT INPUT MIN D.H.W.
MAX OPERATING PRESSURE D.H.W.
ELECTRICAL PROTECTION GRADE
NOx CLASS
CODE GAS COUNCIL NUMBER (UK)
CERTIFICATION WRAS (UK)
TYPE OF GAS
GAS SUPPLY PRESSURE
CLASSIFICATIONS

10
The boiler must be installed in a fixed
location , by qualified engineers in com-
pliance with all instructions contained in
this manual.
Furthermore, the installation must be in
accordance with current standards and
regulations.
2.1 VENTILATION
MURELLE HE 70 R ErP can be installed
in boiler rooms whose size and require-
ments meet current regulations.
VENTILATION
The following is provide for your guidan-
ce only, and assumes the ventilation air
is taken directly from outside. The sizes
of the vents may need to be increased in
respect of other appliances installed in
the same area, and seasonal use. Take
care that the position of low level vents
would not subject to adverse weather
conditions, ie flooding.
Ventilation requirements for Murelle HE
70 R ErP boilers and cascade systems.
BS6644 has a requirement that the tem-
peratures in a room or compartment do
not exceed certain levels:
- 25°C at floor level(0-100mm)
- 32°C at mid level (1.5M above the floor
level)
- 40° C at ceiling level (0-100mm from
ceiling)
When installed as a class B appliance
(open flued, not roomed sealed).
2 INSTALLATION
Fig. 4
Single installation
with kit optional code 8101586
WARNING:
- The use of a hydraulic separator is man-
datory.
- When replacing boilers in existing instal-
lations, it is advisable to install a heat
exchanger to separate the boiler cir-
cuit from the secondary circuits. See
the pressure curve for the boiler supply
shown in figure 14.
M2
313
268
RM
330 65
700
595
M2
440,5 450
R3
170,5
268
207, 5
MURELLE 50 HE R - UK MURELLE 110 HE R - UK
500
600
R3
235
70
RM
M2
115
265
663 865
355
301
RM
M Heating flow R 2” (UNI-ISO 7/1)
R Heating return R 2” (UNI-ISO 7/1)
M2 D.H.W. tank flow G 1” (UNI-ISO 228/1)
R3 D.H.W. tank return G 1” (UNI-ISO 228/1)
M
R
S3
G
R Heating return
M Heating flow
G Gas connection
S3 Condensation outlet
Installation in sequence/cascade

11
Installed in a room
High level (within 15% of the room height
from ceiling) - 2cm²/KW of net heat
input
Low level (low as possible within 1 metre
from floor natural gas, 250mm LPG)–
4cm²/KW of net heat input
A single Murelle HE 50 R (48KW net
input) boiler would require 96cm² at high
level and 192cm² at low level.
Installed in a compartment or enclosure
High level (within 15% of the room height
from ceiling) - 5cm²/KW of net heat
input
Low level (low as possible within 1 metre
from floor natural gas, 250mm LPG) –
10cm²/KW of net heat input.
A single Murelle HE 50 R (48KW net
input) boiler would require 240cm² at
high level and 480cm² at low level.
When installed as a class C
appliance(room sealed)
Installed in a room
High level (within 15% of the room height
from ceiling) - 2cm²/KW of net heat
input
Low level (low as possible within 1 metre
from floor natural gas, 250mm LPG)–
2cm²/KW of net heat input
A single Murelle HE 50 R (48KW net
input) boiler would require 96cm² at high
level and 96cm² at low level.
Installed in a compartment or enclosure
High level (within 15% of the room height
from ceiling) - 5cm²/KW of net heat
input
Low level (low as possible within 1 metre
from floor natural gas, 250mm LPG)–
5cm²/KW of net heat input.
A single Murelle HE50 R(48KW net input)
boiler would require 240cm² at high level
and 240cm² at low level.
2.2 INSTALLATION
2.2.1 Single boiler (fig. 4)
For single boiler installations a kit is
available upon request: cod. 8101585.
2.2.2 Sequence/cascade boilers
(fig. 4 - fig. 4/a)
For sequence/cascade installations
where the boilers are connected to a
cascade (common)flue system, PAR 1 of
each boiler in the cascade must be reset
as follows:
- PAR 1 = 6 (for G20 NATURAL GAS boi-
lers)
- PAR 1 = 14 (for G31 PROPANE boilers)
Refer to section 3.3 to access the
INSTALLER PARAMETERS section.
The boiler supplied with RS-485 that
board that allows management of up to
8 boilers in cascade and communication
in MODBUS.
The board is placed on the back of the
control panel.
Access the board and chose the desired
operating mode (CASCADE or MODBUS)
by selecting the DIP SWITCH of the board
as indicated in figure 4/a.
CASCADE mode (fig. 4/b)
Electrically connect all the boilers that
form the modular cascade thermal
system and set installer parameters PAR
15 on every single boiler as indicated in
fig. 4/b.
CASCADE WITH MORE
THAN TWO BOILERS
When more than two boilers are connected
in cascade, it is essential that the OEM
parameter on the “Master” boiler is reset
to coincide with the number of boilers in
the cascade.
This must be done after setting PAR 15 on
the designated Master boiler to “0”
On the “Master” boiler press any key to
wake up the display.
Then press simultaneously the and
the buttons for 5 seconds until the
display is as shown.
Then press again, simultaneously, the
and the buttons for 2 seconds until
the display shows.
Next press, in the order shown
The display will be as shown.
Press the button, and the display
will show.
Use the and buttons to set the
number of boilers in the cascade.
Then press to confirm the
settings.
DIP SWITCH
GESTIONE IN CASCATA
12 3
CASCADE MANAGEMENT
DIP SWITCH
GESTIONE IN MODBUS
MODBUS MANAGEMENT
123
ON
123
ON
x 2
CN10
CHIAVE
POLARIZATION
Fig. 4/a

12
DIP SWITCH
DIP SWITCH
DIP SWITCH
123
123456
123456
123456
X5 X5
WIRED
CONNECTOR CN10
(code 6319165)
RS-485 BOARD
RS-485 BOARD
RS-485 BOARD
WIRED
CONNECTOR CN10
(code 6319165)
WIRED
CONNECTOR CN10
(code 6319165)
BOILER BOARD (SLAVE ...)
BOILER BOARD (SLAVE 1)BOILER BOARD (MASTER)
ON
123
ON
123
ON
EXTERNAL SENSOR (SE)
CASCADE SUPPLY PROBE (SMC)
CHARACTERISTICS
OF ELECTRIC CABLE:
-
3 wires of 24 AWG
- Screened and twisted - Characteristic impedance 100 Ω - Shield connected to ground with only one side of the line –
+
GND
–
+
GND
–
+
GND
–
+
GND
–
+
GND
–
+
GND
INSTALLER PARAMETERS SETTING: PAR 15 CASCADE ADDRESS -- = Disabled 0 = Master 1...7 = Slave (N.B. Ensure that each slave is numbered separately!) ATTENTION: - CONNECT UP TO A MAXIMUM OF 8 RS-485 BOARDS. - THE EXTERNAL SENSOR MUST BE CONNECTED TO THE MASTER BOILER (SE). - CONNECT CASCADE DELIVERY SENSOR (SMC) TO THE SLAVE 1 BOILER. - SE, SMC sensor and the RS-485 boards wired connector are provided in a kit at the request code 8092250. - NOTE: RS485 LED, THIS WILL BE ILLUMINATED GREEN ON THE ASSIGNED MASTER BOILER, AND ORANGE ON SLAVE BOILERS. - THE RED LED WILL FLASH WHEN THE DIP SWITCH IS SET INCORRECTLY.
Fig. 4/b

13
SCHEDA CALDAIA
DIP SWITCH
SCHEDINO RS-485
123
CO
NNETT
O
R
E
C
ABLAT
O
C
N1
0
(
cod. 6319165
)
123456
WIRED CONNECTOR
CN10
(code 6319165)
COMUNICAZIONE MODBUS
MODBUS COMMUNICATION
RS-485 BOARD
/ BOILER BOARD
ON
–
+
GND
–
+
GND
INSTALLER PARAMETERS SETTING:
PAR 16 MODBUS MODE
-- = Disabled
1...31 = Slave from 1 to 31
(ATTENTION: Each slave must be
assigned with a different num-
ber).
PAR 17 MODBUS CONFIGURATION
-- = Disabled
1...30 = Factory value 25
(See Tab. PAR 17 INST)
ATENTION: Switch off and restart the boiler
after setting PAR 17!
11200 8No 1
21200 8No 2
31200 8Pari /1
41200 82
51200 8Dispari / 1
61200 82
72400 8No 1
82400 8No 2
92400 81
10 2400 82
11 2400 81
12 2400 82
13 4800 8No 1
14 4800 8No 2
15 4800 81
16 4800 82
17 4800 81
18 4800 82
19 9600 8No 1
20 9600 8No 2
21 9600 81
22 9600 82
23 9600 81
24 9600 82
25 19200 8No 1
26 19200 8No 2
27 19200 81
28 19200 82
29 19200 81
30 19200 82
PAR 17 INST Baud Rate N° Bit Dati Parità Bit di Stop
Par 17 INST Baud Rate No. Data Bit Parity Stop Bit
Pari /
Pari /
Pari /
Pari /
Pari /
Pari /
Pari /
Pari /
Pari /
Dispari /
Dispari /
Dispari /
Dispari /
Dispari /
Dispari /
Dispari /
Dispari /
Dispari /
Even
Even
Even
Even
Even
Even
Even
Even
Even
Even
Odd
Odd
Odd
Odd
Odd
Odd
Odd
Odd
Odd
Odd
TABELLA PAR 17 INST/ Tab. PAR 17 INST
Fig. 4/c
MODBUS mode (fig. 4/c)
The RS-485 board can be used for
MODBUS communication of every
MURELLE HE 70 R ErP boiler.
In this case, proceed as follows:
- Set the DIP SWITCH of the RS-485
board and the PAR 16 as indicated in
the figure.
- Choose the communication configu-
ration suited to the MODBUS network
(PAR 17 INST) according to Table PAR
17 INST.

14
Modbus address
Variable description
Type
Read /Write
U.M.
Min
value
Max
value
Function
Di
g
ital variables
1Boiler CH Enable/Re
q
uestDR/W- 01
2Boiler DHW Enable DR/W -0 1
3Boiler Water Fillin
g
Function DR/W -0 1
32 Boiler CH Mode DR -0 1
33 Boiler DHW Mode DR -0 1
34 Boiler Flame Status DR -0 1
35 Boiler Alarm Status DR -0 1
Analo
g
variables
1Boiler CH Primary Setpoint A R/W 0,1°C 20,0 80,0
2Boiler DHW Primary Setpoint A R/W 0,1°C 20,0 80,0
3Boiler DHW Setpoint A R/W 0,1°C 10,0 80,0
4Outside Temperature MB A R/W 0,1°C-55,0 95,0
5Boiler CH Curve Slope A R/W 0,13,0 40,0
6Boiler CH Curve Displacement A R/W 0,1-5,05,0
64 Boiler DHW Water Te m
p
eratureAR0,1°C 0,0 100,0
65 Boiler Primar
y
Water Te m
p
eratureAR0,1°C 0,0 100,0
66 Boiler Return Water Tem
p
eratureAR0,1°C 0,0 100,0
67 Boiler Flue Gas Tem
p
eratureAR0,1°C 0,0 200,0
68 Boiler Relative Modulation Level AR0,1% 0,0 100,0
69 Boiler Primar
y
Water Pressure AR0,1 bar 0,06,0
70 Boiler Outside Te mperatureAR0,1°C -100,0 100,0
Inte
g
er variables
129Boiler Current MinuteI
R/W -0 59
130Boiler Current Hour I R/W -0 23
131Boiler Current Da
y
of the Week I R/W -1= Lun 7 = Dom
132Boiler Current Da
y
of the MonthIR/W -1 31
133Boiler Current MonthI
R/W -1 12
134Boiler Current Year I R/W - 2000 2200
192Boiler Alarm Code IR -0100
193Boiler Slave 1 Alarm Code IR -0100
194Boiler Slave 2 Alarm Code IR -0100
195Boiler Slave 3 Alarm Code IR -0100
196Boiler Slave 4 Alarm Code IR -0100
197Boiler Slave 5 Alarm Code IR -0100
198Boiler Slave 6 Alarm Code IR -0100
199Boiler Slave 7 Alarm Code IR -0100
200Boiler Combustion Parameter
(
Par1
)
IR -0199
201Boiler H
y
draulic Parameter
(
Par2
)
IR -0199
Request CH zone 1
Enable DHW preparation
Not used
State CH zone 1
State preparation DHW
State presence flame
State presence alarm
Setpoint CH zone 1.
If you receive a value out of range
so the value isn’t received and
the boiler temperature control is
maintained of fixed point or a
temperature curve.
Setpoint CH during ACS preparation
(for PAR 66 installer parameters)
If you receive a value out of range
the value isn’t received and it is used
the boiler value regulation .
Setpoint ACS.
If you receive a value out of range
the value isn’t received and it is used
the boiler value regulation.
External value of temperature by MobBus.
If you receive a value out of range
the value isn’t received. In case of
conflict the boiler will give priority to the value
of the probe connected to it.
Slope of heating curve of zone 1
(it is used instead of the curve set in the boiler).
If you receive a value out of range
the value isn’t received and it is used
the boiler heating curve.
If you receive a value out of range
the value isn’t received and it is used
the boiler heating curve.
Shift value of room zone 1 set
(it is used instead of the shift set in the boiler).
DHW temperature sensor
CH temperature sensor (Delivery)
CH temperature sensor (Return)
Smoke temperature sensor
Modulation level: (0%= minimum boiler power
100%= maximum boiler power)
Pressure value water CH
Outside temperature read from the boiler
through the probe connected to it
Not used
Not used
Not used
Not used
Not used
Not used
Numeric code shown during boiler error
(If Master is in cascade)
Numeric code shown during slave 01 error
Numeric code shown during slave 02 error
Numeric code shown during slave 03 error
Numeric code shown during slave 04 error
Numeric code shown during slave 05 error
Numeric code shown during slave 06 error
Numeric code shown during slave 07 error
PAR 1 value
PAR 2 value
MODBUS BOILER VARIABLES LIST

15
CASCADE+MODBUS mode (fig. 4/d)
This mode allows for MODBUS commu-
nication of at least two boilers in cascade
and is performed by requesting another
RS-485 board provided in the kit code
8092244.
ATTENTION: Communication will occur
only with the MASTER boiler, (boiler
with PAR 15 = 0), interpreting the casca-
de as a single heat capacity generator:
P CASCADE = P BOILER x No. BOILERS.
To install the second board, proceed as
follows:
- Remove the cover and electrical-
ly connect the second RS-485 board
equipped with lid to the RS-485 board
already installed in the MASTER boiler
(boiler with PAR 15 = 0) with the wired
connector provided in the kit.
CAUTION: Insert the wired connector
with caution.
- Set the DIP SWITCH of the new board
in MODBUS mode.
- Close the lid of the second board.
- Choose the communication configu-
ration suited to the MODBUS network
(PAR 17 INST) according to Table PAR
17 INST.
RS-485 connection to the INSOL/MIXED
ZONE (fig. 4/e)
The RS-485 board can be connected
to optional INSOL kit code 8092254 or
MIXED ZONE code 8092252. Both require
the board housing kite code 8092236.
Carry out the electrical connections as
indicated in the figure.
CAUTION: For electrically connecting
the INSOL/MIXED ZONE board to the
boiler board, refer to the instruction
leaflet provided in the kit. Fig. 4/d
CN10
COMUNICAZIONE
MODBUS
MODBUS
COMMUNICATION
CONNETTORE CABLATO
(cod. 6319173)
WIRED CONNECTOR
(cod 6319173)
123456
SOLUZIONE NON PIU’
USATA!
DIP SWITCH
GESTIONE IN CASCATA
12 3
CASCADE MANAGEMENT
DIP SWITCH
GESTIONE IN MODBUS
MODBUS MANAGEMENT
123
ON
123
ON
INSTALLER PARAMETER SETTING:
PAR 16 MODBUS ADDRESS
-- = Not enabled
1...31 = Slave from 1 to 31
(ATTENTION: Avoid calling the
boiler with the same number
assigned to other appliances)
PAR 17 MODBUS CONFIGURATION
-- = Not enabled
1...30 =
Default value: 25
(See Table PAR 17 INST)
CN10
CN10
COMUNICAZIONE
MODBUS
MODBUS
COMMUNICATION
123456
Schedino
INSOL/ZONA MIX e kit
alloggiamento scheda
Schedino
INSOL/ZONA MIX e kit
alloggiamento scheda
Cavo kit INSOL/ZONA MIX
Kit INSOL/MIX ZONE cable
Cod.6323801
Fig. 4/e
Module with 1 RS-485 board Module with 2 RS-485 board
INSOL / MIXED
ZONE board and kit
board housing
INSOL / MIXED ZONE
board and kit board
housing

16
2.3 CONNECTING UP SYSTEM
To protect the heat exchanger becoming
damaged by corrosion, incrustation or
deposits, after installation it is extremely
important to clean the system using
suitable products. Sime recommend the
use of FERNOX products for the flushing
and final treatment of the system water.
this is particularly important in hard
water areas.
Artificially softened water must not be
used to fill the heating system.
It is important to check the concentra-
tion of the inhibitor after each system
modification and during maintenance,
following the product manufacturers
instructions(specific test kits are avai-
lable).
A suitable connection must be made to
the safety valve, extending it to a safe
termination, incorporating a tun dish if
required.
Isolation valves must be incorporated in
the heating flow and return, to enable
boiler maintenance or repair without the
need to drain the entire heating system.
WARNING:
Failure to clean , or adequately treat
the heating system could invalidate the
boiler warranty.
Gas connections must be made in accor-
dance with current standards and regula-
tions. When dimensioning gas pipes from
the meter to the module, both capacity
volume (consumption) in m3/h and gas
density must be taken into account.
The sections of the piping making up
the system must be such as to guaran-
tee a supply of gas sufficient to cover
the maximum demand, limiting pressure
loss between the gas meter and any
apparatus being used to not greater
than:
– 1.0 mbar for family II gases (natural
gas);
– 2.0 mbar for family III gases (butane or
propane).
An adhesive data plate is positioned insi-
de the front panel; it contains all the
technical data identifying the boiler and
the type of gas for which the boiler is
arranged.
2.3.1 Connection of condensation
water trap
To ensure safe disposal of the conden-
sate produced by the flue gases, refer-
ence should be made to BS6798:2009.
The boiler incorporates a condensate trap
which has a seal of 75mm, therefore no
additional trap is required. The condensate
should ideally be discharged internally into
an internal waste pipe(washing machine/
sink waste) or a soil pipe to avoid the risk
of freezing. External pipe runs should be
avoided, but if it is necessary, the pipework
should be at least 32 mm and protected
from the risc of freezing with a waterproof
insulation and the length kept to a mini-
mum and not exceeding 3 m. termination
should be into an external gully or purpose
made soakaway. We recommend that the
condensate drain at the boiler is in 20 mm
solvent weld pipe with a socket covering
the connection to the trap. Alternatively a
suitable hose can be secured to the trap
and terminated as required (see Appendix
1- Dealing with condensate).
NOTE: All pipework must have a con-
tinuous fall from the boiler and must be
resistant to corrosion by condensate,
copper or steel is NOT suitable. It should
be noted that the connection of a con-
densate pipe to a drain may be subject to
local building control requirements.
2.3.2 Filter on the gas pipe
The gas valve is supplied ex factory with
an inlet filter, which, however, is not
adequate to entrap all the impurities in
the gas or in gas main pipes.
To prevent malfunctioning of the valve,
or in certain cases even to cut out the
safety device with which the valve is
equipped, install an adequate filter on
the gas pipe.
3
1
2
Fig. 5
KEY
1 Manual drain vent
2 Pump high efficiency
3 Safety valve 3.5 bar

17
2.4 INITIAL PHASE
SYSTEM FILLING
(fig. 5)
Cold system filling pressure must be 1
bar. The system must be filled slowly so
that air is released through the specific
escapes.
2.4.1 System draining (fig. 5)
To drain the system, turn off the boiler ,
isolate the flow and return, and use the
boiler drain vent (1 fig. 5).
2.4.2 Dealing with condensate
See Appendix 1”Dealing with conden-
sate”
2.4.3 Requirements for sealed water
systems MURELLE HE 70 R ErP
(fig. 5/b)
The heating system design should be
based on the following information:
a) The available pump head is given in
fig. 14.
b) A filling device as shown in fig 5/b
must be incorporated.
2.5 EXHAUST
The boiler is supplied with a 80 mm
gasket, which must be fitted over the
exhaust terminal prior to the flue being
installed
(11 fig. 6 - fig. 7 - fig. 8 ). See fig
8a for examples of suitable flue termina-
tion positions.
2.5.1 Type B (fig. 6)
If the inlet is not connected, the boiler
should be regarded a Type B device. When
installing the boiler in locations where it
needs to be protected from water, replace
the intake terminal inserted in the flange
with terminal code 8089510.
For information on how to configure the
boiler in this mode see figure 6.
The maximum overall length of ø 80
exhaust flues is determined by the load
losses of the single accessories installed
and should not exceed 16 mmH2O .
The exhaust pipe can be connected to
existing chimneys.
When the boiler works at low temperatu-
re is possible to use normal chimneys at
the following conditions:
– The chimney must not be used by
other boilers.
– The inside of the chimney must be
protected from direct contact with the
boiler condensation. Combustion pro-
ducts must be conveyed with a flexible
piping or rigid plastic pipes with a
diameter of about 100-150 mm provi-
ding so to the condensation siphoned
drainage at the end of the pipe. The
useful height of the siphon must be at
least 150 mm.
2.5.2 Type C (fig. 7 - fig. 8)
The boiler becomes a Type C device
when the intake terminal is removed
from the flange and the intake is con-
nected to separate exhaust ducts (fig. 7)
or with coaxial exhaust (fig. 8).
2.5.3 Maximum usable length
for separate ø 80 flues
The maximum overall length of ø 80
suction and exhaust flues is determined
by the load losses of the single acces-
sories installed and should not exceed
16 mmH2O.
When the segment of piping is between
11-16 mm H2O it is necessary to check
and, if needed, re cailbrate the gas valve
as specified in point 4.2.2.
2.5.4 Maximum usable
length for coaxial
ø 80/125 flues
In installations with ø 80/125 coaxial
exhaust, the maximum horizontal leng-
th including the 90° elbow, should not
exceed 5 m.
For roof exits it should not exceed 8 m
along vertical.
When the segment of pipe is between 2-5
m horizontal / 4-8 m vertical, it is neces-
sary to check and, if needed, re calibrate
the gas valve as specified in point 4.2.2.
Fig. 5/b

18
WARNING:
Before installing accessories, lubricate the internal part of gaskets with silicon-based products.
Avoid using oils and greases.
Type B
Fig. 6
STAFFA TELAIO
CALDAIA
GMR
Pmin
Pmax
80 mm accessories
Key Code Description Load loss
mm H20
1 8077450A single)
8077450 (6 pieces)
90° bend 0,8
2a 8077351A (single)
8077351 (6 pieces)
1000mm Extension 0,4
2b 8077350A (single)
8077350 (6 pieces)
500mm Extension 0,2
3 8091300 Articulated Tile
4 8091212B Roof terminal (1381mm) 1,3
5 6296513 Extension with test point
(250mm)
0,1
6 8077451A (single)
8077451 (6 pieces)
45° bend 0,4
7 8089501 Exhaust terminal 1,5
8 8091500 Inner/outer wall seal
(2 of each)
11 Gasket (supplied with
boiler)
min 600

19
WARNING:
- Installations with roof exit terminal (4a)
and coaxial exhaust (13) require the
use of a condensation recovery (12) that
has to be connected to the water drain
siphon (waste water).
- Before installing accessories, lubricate
the internal part of gaskets with silicon-
based products. Avoid using oils and
greases.
Fig. 7
Type C (separate ø 80 flues and
coaxial exhaust terminal)
Type C (separate ø 80 flues)
STAFFA TELAIO
CALDAIA
GMR
Pmin
Pmax
80 mm accessories
Key Code Description Load loss mm
H20
Inlet Exaust
1 8077450A (single)
8077450 (6 pieces)
90° bend - 80 mm 0,8 0,8
2a 8077351A (single)
8077351 ( 6 pieces)
1000mm Extension - 80mm 0,35 0,45
2b 8077350A (single)
8077350 (6 pieces)
500mm Extension - 80mm 0,15 0,2
3 8091300 Articulated Tile - -
4 8091212B Roof terminal (L 1381mm) - 1,3
4a 8091212B Coaxial roof exit terminal - 4,0*
5 6296513 Extension with test point(L
250mm)
- 0,1
6 8077451A (single)
8077451 (6 pieces)
45° bend - 80mm 0,45 0,45
7 8089501 Exhaust terminal - 80mm - 1,5
8 8091500 Inner/outer wall seal (2 of
each)
- -
9 8089500 Inlet terminalm - 80mm 0,2 -
10 8091401 Inlet/ exhaust fitting - -
11 Gasket (supplied with
boiler)
- -
13 8091210 Coaxial exaust ø80/125
L.885
- 5,0*
* This loss includes the losses of item 10
min 600
min 600

20
Type C (ø 80/125 coaxial exhaust)
NOTES:
- Installation requires the use of a condensation recovery (12) that
must be connected to a water drain siphon (waste water).
- Before installing accessories, lubricate the internal part of
gaskets with silicon-based products. Avoid using oils and greases.
- Inserting each supplementary 90° elbow reduces the available
segment by 2 metres and Inserting each supplementary 45° elbow
reduces the available segment by 1 metre. Fig. 8
Model H (m) L (m)
Murelle HE 70 R ErP 8 5
STAFFA TELAIO
CALDAIA
GMR
Pmin
Pmax
Flue kits
8091280 8091281
Key Code Description Include Include
2a
8096171 1000mm extension 80/125
2b 8096170 500mm extension 80/125
3 8091300 Articulated tile
4a 8091212B Coaxial roof terminal √
10
8091401 Inlet/exhaust fitting √ √
11
Gasket(supplied with boiler)
12 8092800 Condensate recovery √ √
13
8096253A Coaxial terminal 80/125 √
14a
8095870 90° bend 80/125 √
14b
8095970 45° bend 80/125
2.5 ELECTRICAL
CONNECTION
The boiler is supplied with an electric
cable. Should this require replacement,
it must be purchased exclusively from
SIME.
The electric power supply to the boiler
must be 230V - 50Hz single-phase throu-
gh a 3 A fused main switch, with at least
3 mm spacing between contacts.
Respect the L and N polarities and the
earth connection.
NOTE: SIME declines all responsibility
for injury or damage to persons, ani-
mals or property, resulting from the
failure to provide for proper earthing of
the appliance.
2.5.1 Room thermostat
and or/ Timer (clean contact)
The heating demand can be controlled by a
thermostat and/or timer (TA) connected to
CN6 terminals 7-8( see fig 11) after having
removed the existing bridge. the control
being used must be of a class conforming
to the standard EN 607301 (clean electrical
contact).
2.5.2 Remote control SIME HOME
connection (optional)
The boiler is designed for connection
to a remote control unit SIME HOME,
supplied on request (code 8092280/81).
The remote control unit SIME HOME
allows for complete remote control of
the boiler. The boiler display will show
the following message:
1. Visualizzazione temperatura
esterna solo con sonda esterna collegata
2. Visualizzazione temperatura sonda
riscaldamento (SM)
3. Visualizzazione temperatura sonda
sanitario (SS) solo per caldaie istantanee
4. Visualizzazione temperatura sonda
ausiliaria o sonda bollitore (SB)
6. Visualizzazione temperatura
riscaldamento riferita al primo circuito
7. Visualizzazione temperatura
riscaldamento riferita al secondo circuito
13. Visualizzazione codice errore
penultima anomalia
14. Visualizzazione numero totale
delle anomalie
9. Visualizzazione numero giri ventilatore in rpm x 100 (es. 4.800 e 1.850 rpm)
10. Visualizzazione ore di funzionamento del bruciatore in h x 100 (es. 14.000 e 10)
11. Visualizzazione numero di accensioni del bruciatore x 1.000 (es. 97.000 e 500)
12. Visualizzazione codice errore
ultima anomalia
15. Contatore accessi parametri
installatore (es. 140 accessi)
5. Visualizzazione temperatura
sonda fumi
8. Visualizzazione corrente
di ionizzazione in µA 16. Contatore accessi parametri
OEM (es. 48 accessi)
For installation and use of the remote
control, follow the instructions in the
package.
NOTE: Ensure PAR 10 set to 1 (PAR 10 = 1).
2.5.3 External sensor connection
The boiler is designed for connection to
an external temperature sensor, sup-
plied on request (code 8094101), which
can automatically regulate the tempe-
rature value of the boiler output accor-
ding to the external temperature. For
installation, follow the instruction in the
package. It is possible to make correc-
tions to the values read by adjustment
of PAR 11.
2.5.3 Heat Demand by 230v
The heating demand can be controlled by
230v applied to terminal 14 on CN7, and
removal of the bridge on CN6 terminals
7 & 8.
2.5.5 BMS
(Building Management Systems)
Single or cascade boilers can be integra-
ted into a building management system.
The BMS signal should be connected to
the single, or master boiler as shown
in fig. 11.
Set PAR 14 according to the maximum(10v)
flow temperature required.
min 600
HORIZONTAL EXHAUST
To ensure correct operation of the appliance, do
as follows:
- set the installer parameter PAR 9 as indicated in
table (see point 3.3 to access the installer para-
meters).
- proceed with calibrating CO2 at the maximum
and minimum capacity as specified in point 4.2.2.
Maximum length PAR 9
exhaust (m) (long chimneys)
0 - 1.0 2
1.0 - 2.0 3
2.0 - 3.0 4
3.0 - 4.0 5
4.0 - 5.0 6