Potterton Sirius two FS 50 Instruction manual

Working towards
a cleaner future
Sirius FS 50-70
Floor Standing Condensing Gas Boilers
Installation, Operation & Maintenance Manual
To be kept by the user October 2010
heating specialists

2912.822.1 - GB
INSTRUCTIONS PERTAINING TO THE USER
Dear Customer,
We are sure your new boiler will comply with all your requirements.
Do not dispose of this booklet. This manual contains the information, which will help you to
run your boiler correctly and efciently.
POTTERTON COMMERCIAL boilers bear the CE mark in compliance with the basic
requirements as laid down in the following Directives:
- Gas Directive 90/396/EEC
- Efciency Directive 92/42/EEC
- Electromagnetic Compatibility Directive 2004/108/EEC
- Low Voltage Directive 2006/95/EC
Do not leave any parts of the packaging (plastic bags, polystyrene, etc.) within children’s reach as they are a
potential source of danger.
ATTENTION
This boiler can only be installed and operate
in permanently, ventilated rooms in accordance with
BS6644

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INSTRUCTIONS PERTAINING TO THE USER
1. Instructions prior to installation 4
2. Instructions prior to commissioning 4
3. Commissioning of the boiler 5
4. Filling the boiler 12
5. Switching the boiler off 12
6. Prolonged standstill of the system. Frost protection 12
7. Servicing instructions and gas change 12
8. General information 13
9. Instructions prior to installation 13
10. Boiler installation and dimensions 14
11. Chimney ue connection 21
12. Connecting the mains supply 23
13. Adjusting the gas valves and gas change 30
14. Setting the boiler parameters 32
15. Control and operation devices 34
16. Positioning of the ignition and ame sensing electrode 35
17. Check of combustion parameters 35
18. Activating the chimney-sweep function 36
19. Annual service 36
20. Boiler schematic 37
21. Illustrated wiring diagram 38
22. Technical data 39
CONTENTS
INSTRUCTIONS PERTAINING TO THE USER
INSTRUCTIONS PERTAINING TO THE INSTALLER

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INSTRUCTIONS PERTAINING TO THE USER
This boiler is designed to heat water at a lower than boiling temperature at atmospheric pressure. The boiler
must be connected to a central heating system and/or to a domestic hot water supply system in compliance
with its performances and output power.
The boiler must be installed by a Qualied Service Engineer and ensure the following operations are carried
out:
a) Check that the boiler is t for operation with the type of gas available. For more details see the notice on the
packaging and the label on the appliance itself.
b) Careful checking that the ue terminal draft is appropriate; that the terminal is not obstructed and that no
other appliance exhaust gases are expelled through the same ue duct, unless the ue is especially desi-
gned to collect the exhaust gas coming from more than one appliance, in conformity with the standards and
regulations in force.
c) Careful checking that, in case the ue has been connected to pre-existing ue ducts, thorough cleaning
has been carried out in that residual combustion products may come off during operation of the boiler and
obstruct the ue duct.
d) To ensure correct operation of the appliance and avoid invalidating the warranty, observe the following
precautions:
1. Heating circuit
1.1.New system
Before proceeding with installation of the boiler, the system must be cleaned and ushed out thoroughly to
eliminate residual thread-cutting swarf, solder and solvents if any, using suitable proprietary products.
To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non
alkaline. The recommended products for cleaning are:
SENTINEL X300 or X400 and FERNOX heating circuit restore. The use of this product must be strictly
in accordance with the maker’s directions. Finally the system must be dosed with a suitable inhibitor at
1% system volume.
1.2. Existing system
Before proceeding with installation of the boiler, the system must be cleaned and ushed out to remove
sludge and contaminants, using suitable proprietary products as described in section 1.1.
To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-
alkaline such us SENTINEL X100 and FERNOX heating circuit protective. To use this product proceed
strictly in accordance with the maker’s directions. Dose with inhibitor.
Remember that the presence of foreign matter in the heating system can adversely affect the operation
of the boiler (e.g. overheating and noisy operation of the heat exchanger).
Failure to observe the above will render the warranty null and void.
1. INSTRUCTIONS PRIOR TO INSTALLATION
Initial lighting of the boiler must be carried out by a qualied service engineer. Ensure the following operations
are carried out:
a) compliance of boiler parameters with (electricity, water, gas) supply systems settings.
b) compliance of installation with the standards and regulations in force.
c) appropriate connection to the power supply and earthing of the appliance.
Failure to observe the above will render the warranty null and void.
2. INSTRUCTIONS PRIOR TO COMMISSIONING

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INSTRUCTIONS PERTAINING TO THE USER
KEYS DISPLAY SYMBOLS
Central heating mode setting key
Data display reset key
Parameter setting key (increase value)
Parameter setting key (decrease value)
Program access and scroll key
Program access and scroll keys
Reset key
Domestic hot water temperature setting key
Central heating water temperature setting key
Domestic hot water on/off key
Resettable alarm warning
MAIN display
SECONDARY display
Flame present (on)
Outdoor temperature
Standby (off)
Operation in manual mode at minimum tem-
perature
Operation in manual mode at the maximum
temperature set
Operation in automatic mode
Operation in central heating mode
Operation in domestic hot water mode
020503_1100
Figure 1
IMPORTANT: Domestic Hot Water (D.H.W.) instructions discribed here, are to be taken into account only
if the boiler is connected to a D.H.W. production system.
To correctly light the burner proceed as follows:
1) Provide power supply to the boiler;
2) Open the gas cock;
3) Follow the directions given below regarding the adjustments to be made at the boiler control panel.
3. COMMISSIONING OF THE BOILER

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INSTRUCTIONS PERTAINING TO THE USER
020503_0800
Figure 2
• Automatic operation. Operation of the boiler is controlled by the timed program as described
in point 3-5.1 “Daily timed program for operation of the central heating system”;
• Manual operation at the maximum temperature set. The boiler comes into operation regardless
of the timed program set. The operating temperature is that set using the key (point 3-3:
“Setting the maximum central heating temperature”);
• Manual operation at minimum temperature. The operating temperature is that set in point
3-6: “setting the minimum central heating temperature”.
• Standby. The boiler does not work in central heating mode, although the antifreeze function is
still enabled.
(1) Domestic hot water on/off key: This key can be pressed to activate or deactivate this function,
which is identied on the display by a black cursor line under the symbol .
(4) Reset key. In case of a fault, referred to in point 3-7 “Faults and resetting the boiler”, the boiler can
be restarted by pressing this key for at least two seconds (see 3-8).
If this key is pressed with no fault present, the display will show the message “E153”, and the same key
has to be pressed again (for at least two seconds) to restart the boiler.
(9) Data key. This key can be pressed repeatedly to display the following information:
- Temperature (°C) of the domestic hot water ( );
- outdoor temperature (°C) ( ); only provided with the outdoor temperature sensor probe connected.
Press either of the keys to return to the main menu.
Dash
“Automatic mode”
active
(2) Central heating water temperature setting key. This key can be pressed to set the central heating
water output temperature as described in point 3-3.
(3) Domestic hot water temperature setting key. This key can be pressed to set the domestic hot
water temperature as described in point 3-4.
(10) Central heating mode operating key
.
The key can be pressed to activate four boiler central heating operating modes; these modes are
identied by a black cursor line underneath the relative symbol on the display, and are as follows:
3.1 DESCRIPTION OF KEYS

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INSTRUCTIONS PERTAINING TO THE USER
•Press either of the keys to access the programming function;
the display will show the letter P followed by a number (program line);
•Press the keys until the display shows P1, referring to the time to be set;
•Press the keys to set the time; on the display, the letter P will start to ash;
•Press the key to save and exit the programming function;
020503_0700
Figure 3
3.2 SETTING THE TIME
- Press the key (2-gure 1) to set the central heating water temperature;
- Press the keys to set the temperature required;
- Press either of the keys (1 or 10 - gure 1) to save and return to the main menu.
N.B – With the outdoor sensor connected, the key (2 - gure 1) can be used to shift the central heating curve.
Press the keys to decrease or increase the room temperature in the premises to be heated.
3.3 SETTING THE MAXIMUM CENTRAL HEATING TEMPERATURE
- Press the key (3-gure 1) to set the maximum domestic hot water temperature;
- Press the keys to set the temperature required;
- Press either of the keys (1 or 10 - gure 1) to save and return to the main menu.
3.4 SETTING THE MAXIMUM DOMESTIC HOT WATER TEMPERATURE

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INSTRUCTIONS PERTAINING TO THE USER
- Press either of the keys to access the programming function;
a) press these keys until the display shows P11, referring to the program start time;
b) press the keys to set the time;
- Press the key; the display will show P12, referring to the program end time;
-Repeat the operations described in points a and b until the third and last cycle is reached (program line
P16);
-Press the key to save and exit from the programming function.
3.5 SETTING THE DAILY PROGRAM FOR OPERATION IN CENTRAL HEATING AND DOMESTIC HOT WATER MODES
3.5.1 Setting the daily times for central heating mode operation
3.5.2 Setting the daily times for domestic hot water mode operation
-Factory setting of D.H.W. function is enable (ON) while is disabled D.H.W. daily times program. To enable
D.H.W. daily times program see section 14 (parameter H91).
Setting the daily times for domestic hot water mode operation-Carry out the operations described in section
3.5.1 for program lines 31 to 36.
3.6 SETTING THE MINIMUM CENTRAL HEATING TEMPERATURE
- Press either of the keys to access the programming function;
- Press these keys until the display shows P5, referring to the temperature to be set;
- Press the keys to set the temperature required.
This operating mode is enabled when minimum temperature central heating mode “ ” is activated or when
the daily central heating program does not require heat.
N.B – With the outdoor sensor connected, parameter P5 can be used to set the minimum room tempe-
rature in the premises to be heated (night set-back).

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INSTRUCTIONS PERTAINING TO THE USER
Range
0…23:59
25..80
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
00:00…24:00
0...1
Factory
setting
———-
25
6:00
22:00
0:00
0:00
0:00
0:00
0:00
24:00
0:00
0:00
0:00
0:00
0
Parameter description
Time of day setting
Minimum central heating temperature setting (°C)
Start of rst daily period of automatic central heating
End of rst daily period of automatic central heating
Start of second daily period of automatic central heating
End of second daily period of automatic central heating
Start of third daily period of automatic heating
End of third daily period of automatic central heating
Start of rst daily period of domestic hot water production
End of rst daily period of domestic hot water production
Start of second daily period of domestic hot water production
End of second daily period of domestic hot water production
Start of third daily period of domestic hot water production
Fine End of third daily period of domestic hot water production
Reset of daily central heating and domestic hot water production programs (factory settings).
Press the - + keys together for about 3 seconds; the number 1 appears on the display.
Conrm by pressing either of the keys
Parameter
N.
P1
P5
P11
P12
P13
P14
P15
P16
*P31
*P32
*P33
*P34
*P35
*P36
P45
*Parameters for program lines P31 to P36 are displayed only if Domestic Hot Water (D.H.W.) program (pa-
rameter H91 see section 14) is activated.
3.7 TABLE FOR USER-SETTABLE PARAMETERS

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INSTRUCTIONS PERTAINING TO THE USER
If a fault occurs, a ashing warning code appears on the display.
The fault warnings appear on the main display (gure 1 a) together with the symbol (Figure 4).
To reset, press the reset button for at least two seconds.
020503_0500
Figure 4
020503_0600
Figure 4.1
Fault warnings appear on the secondary display (gure 1 b) alternating with the time, both of them ashing
(gure 4.1). It is not possible to reset malfunction warnings which appear on the secondary display as the cause
of the alarm has rst to be removed.
3.8 FAULT WARNINGS AND RESETTING THE BOILER