Potterton Sirius WH 50-60-70 Instruction manual

Working towards
a cleaner future
Sirius WH 50-60-70
Wall Mounted Condensing Gas Boilers
Installation, Operation & Maintenance Manual
To be kept by the user October 2010
heating specialists

2912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE USER
Dear Customer,
We are sure your new boiler will comply with all your requirements.
Do not dispose of this booklet as it 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/CEE
- Performance Directive 92/42/CEE
- Electromagnetic Compatibility Directive 89/336/CEE
- Low Voltage Directive 73/23/CEE
Do not leave any parts of the packaging (plastic bags, polystyrene, etc.) within children’s reach as they are a
potential source of danger.

3912.272.1 - GB/IEINSTRUCTIONS 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. Turning off the boiler 12
6. Prolonged standstill of the system. Frost protection 12
7. Servicing instructions 12
8. General information 13
9. Instructions prior to installation 13
10. Boiler installation 14
11. Boiler size 15
12. Installation of ue and air ducts 15
13. Hydraulic system 19
14. Connecting the mains supply 23
15. Gas valve adjustment 30
16. Setting the boiler parameters 32
17. Control and operation devices 33
18. Positioning of the ignition and ame sensing electrode 34
19. Check of combustion parameters 34
20. Activating the chimney-sweep function 35
21. Annual service 35
22. Boiler schematic 36
23. Illustrated wiring diagram 37
24. Technical data 38
CONTENTS
INSTRUCTIONS PERTAINING TO THE USER
INSTRUCTIONS PERTAINING TO THE INSTALLER

4912.272.1 - GB/IEINSTRUCTIONS 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 ensuring that the following operations are carried
out:
a) Careful checking 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. Hot water circuit:
If the water hardness is greater than 20 °F (1 °F = 10 mg calcium carbonate per litre of water) a
polyphosphate or comparable treatment must be used in response to current regulations.
2. Heating circuit
2.1.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.
2.2. 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 2.1.
To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-
alkaline such as SENTINEL X100 and FERNOX heating circuit protective.
Remember that the presence of foreign matter in the heating system can adversely affect the operation
of the boiler (e.g. overheating, noisy operation, or failure of the heat exchanger may occur).
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.
Prior to commissioning remove the protective plastic coating from the unit. Do not use any tools or abrasive
detergents as you may damage the painted surfaces.
2. INSTRUCTIONS PRIOR TO COMMISSIONING

5912.272.1 - GB/IEINSTRUCTIONS 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
Hot water temperature setting key
Central heating water temperature setting key
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 hot water mode
020503_1100
Figure 1
IMPORTANT: The instructions contained in this manual relating to the operation of the hot water circuit
are relevant only if the appliance is actually connected to a hot water 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

6912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE USER
020503_0800
Figure 2
a) 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”;
b) 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”);
c) Manual operation at minimum temperature. The operating temperature is that set in point 3-6:
“setting the minimum central heating temperature”.
The manual transition from positions a) and b) to position c) involves shut-down of the burner and
disconnection of the pump after the post-circulation delay interval (the factory setting for this parameter
is 3 minutes).
d) standby. The boiler does not work in central heating mode, although the frost protection function is
still enabled.
(1) Hot water on/off key: Press this key to activate or inhibit this function, which is identied by the
appearance on the display of two black dashes 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.
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 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) This key can be pressed to set the central heating water output temperature as described in point
3-3.
(3) This key can be pressed to set the 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

7912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE USER
a) Press either of the keys to access the programming function;
the display will show the letter P followed by a number (program line);
b) Press the keys until the display shows P1, referring to the time to be set;
c) Press the keys to set the time; on the display, the letter P will start to ash;
d) 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 cur-
ve. 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 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 HOT WATER TEMPERATURE

8912.272.1 - GB/IEINSTRUCTIONS 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
- As supplied by the factory the appliance is set up with the hot water function always enabled and the do-
mestic hot water programming function disabled.
The instructions for enabling this program are given in chapter 17, which is addressed specically to installers
(parameter H91).
If the program is enabled program lines from 31 to 36 must be set up as described in heading 3-5.1.
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 setback).

9912.272.1 - GB/IEINSTRUCTIONS 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 hot water production (*)
End of rst daily period of hot water production (*)
Start of second daily period of hot water production (*)
End of second daily period of hot water production (*)
Start of third daily period of hot water production (*)
End of third daily period of 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
Note: Parameters from P31 to P36 can be displayed only if the domestic hot water program has been enabled
as described in chapter 17 for the attention of the installer (parameter H91).
3.7 TABLE FOR USER-SETTABLE PARAMETERS

10 912.272.1 - GB/IEINSTRUCTIONS 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
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
0509_0201

11 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE USER
All the faults are displayed in order of importance; if several faults occur simultaneously, the rst to be displayed
is the one with highest priority. After the cause of the rst fault has been removed, the second one will be
displayed, and so on.
If any given fault occurs frequently, contact the authorised Service Centre.
Fault description
Outdoor temperature sensor failure
NTC output sensor failure
Hot water NTC sensor failure
Safety or ue gas thermostat tripped
Loss of ame during operation (the
ionization current has fallen below
the limit)
Minimum fan speed limit is not met
lack of gas pressure / external
thermostat
No gas
Boiler circuit board error
The reset key has been pressed
inappropriately
Internal error on boiler circuit module
Fan speed threshold not reached
No hydraulic differential pressure
switch enabling signal
Fault
code
E10
E20
E50
E110
E128
E129
E132
E133
E151
E153
E154
E160
E164
3.9 FAULT WARNINGS TABLE
Action required
Call the authorised service centre to check the wiring and/or replace the sensor.
Call the authorised service centre to replace the sensor.
Call the authorised service centre to replace the sensor.
Press the reset key (for about 2 seconds: if this device is triggered repeatedly, call
the authorised service centre)
Call the authorised service centre to check the ame.
Call the authorised service centre.
Call the gas supplier. Call the authorised service centre.
Press the reset key (for about 2 seconds); if the fault persists, call the authorised
service centre)
Press the reset button if the display presents the ( ) symbol, otherwise switch off the
boiler at the mains and switch it on again after 10 seconds. If the fault persists, call an
authorised service centre. Check the position of the ignition electrodes (section 18).
Press the key again (about 2 seconds)
Press and hold reset button (2 seconds approx.) then press again when warning
E153 appears
Call the authorised service centre to check the fan.
Check that the system is at the rated pressure. (Refer to the section on lling the
system). If the fault persists, call the authorised service centre.

12 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE USER
To shut down the boiler switch off the electrical supply to the appliance.
Important: Regularly check that the pressure displayed by the pressure gauge is between 1 to 4 bar, with the
boiler not operating.
In case the pressure is lower open the boiler lling tap.
We recommend you open the tap very slowly in order to let off the air.
In case pressure drops occur frequently have the boiler checked by a Qualied Service Engineer.
We recommend you avoid draining the whole system as raw water makeup will lead to harmful limestone
deposits inside the boiler and on the heating elements.
In case the boiler is not operated during wintertime and is therefore exposed to danger of frost we suggest you
add some specic-purpose anti-freeze to the water contained in the system (e.g.: propylene glycole coupled
with corrosion and scaling inhibitors).
The electronic management of the boilers includes a ‘frost protection’ function which operates the burner to
reach a heating ow temperature of 30° C when the system heating ow temperature drops below 5°C.
The frost protection function is enabled if:
* electrical supply to the boiler is on;
* the gas service cock is open;
* the system pressure is as required;
* the boiler is not isolated.
To maintain efcient and safe operation of your boiler have it checked by a Qualied Service Engineer at the
end of every heating season. Careful servicing will ensure economical operation of the system.
Do not clean the outer casing of the appliance with abrasive, aggressive and/or easily ammable cleaners
(i.e.: gasoline, alcohol, and so on). Always isolate the electrical supply to the appliance before cleaning it (see
section 5 Turning off the boiler).
These boilers are produced for natural gas and can be converted to work with LPG (G 31).
Any gas change must be effected by a Qualified Service Engineer.
4. FILLING THE BOILER
5. TURNING OFF THE BOILER
6. PROLONGED STANDSTILL OF THE SYSTEM. FROST PROTECTION
7. SERVICING INSTRUCTIONS AND GAS CHANGE

13 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
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, on models with this option, to a domestic hot water supply
system in compliance with its performances and output criteria.
IMPORTANT! The gas boiler is supplied without the following components which must be provided exclusively
by qualied personnel:
• Expansion vessel;
• Pressure relief valve;
• Circulating pump;
• Boiler filling tap.
Before connecting the boiler ensure the following operations have been completed:
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) Check that the ue terminal draft is appropriate; that the terminal is not obstructed and that no other applian-
ce exhaust gases are expelled through the same ue duct, unless the ue is especially designed to collect
the exhaust gas coming from more than one appliance, in conformity with the standards and regulations in
force.
c) Check 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 be created during operation of the boiler and obstruct
the ue duct.
To ensure correct operation of the appliance and avoid invalidating the warranty, observe the following
precautions:
1. Hot water circuit:
If the water hardness is greater than 20 °F (1 °F = 10 mg calcium carbonate per litre of water) a
polyphosphate or comparable treatment system responding to current regulations must be used.
2. Heating circuit
2.1.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
The following remarks and instructions are addressed to Service Engineers to help them carry out a faultless
installation. Instructions regarding lighting and operation of the boiler are contained in the ‘Instructions per-
taining to the user’ section.
Note that installation, maintenance and operation of the gas appliances must be performed exclusively by
qualied personnel in compliance with current standards.
Please note the following:
* This boiler can be connected to any type of double- or single feeding pipe convector plates, radiators,
thermoconvectors. Design the system sections as usual though taking into account the available output /
pump head performances.
* Do not leave any packaging components (plastic bags, polystyrene, etc.) within children’s reach as they are
a potential source of danger.
* Initial lighting of the boiler must be effected by a Qualied Service Engineer.
Failure to observe the above will render the warranty null and void.
8. GENERAL INFORMATION
9. INSTRUCTIONS PRIOR TO INSTALLATION

14 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
MR: G 1” heating ow
GAS: G 3/4” gas inlet to the boiler
RR: G 1” heating return
SC: condensation drain 22 mm
Figure 5
0506_0806
DRILL HOLES WITH A Ø12 BIT, FIT THE MASONRY
PLUGS AND THE SCREWS PROVIDED
FLUE AXIS
N.B. INCLUDE CONDENSATE DRAIN POINT
BOILER HEIGHT 950
BOILER WIDTH 600
gas inlet to the boiler heating ow heating return condensation drain
0602_0701/CG_1469/1
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. Please ensure to use this product
proceeding strictly in accordance with the manufacturers instructions. Finally ll the system with the
correct strength of central heating inhibitor.
2.2. 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 2.1.
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 proceeding
strictly in accordance with the maker’s directions.
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). Dose with inhibitor.
Failure to observe the above will render the guarantee null and void.
10. BOILER INSTALLATION
Decide upon the boiler location, then tape the template on the wall.
Connect the pipework to the gas and water inlets prearranged on the template lower bar.
If you are either installing the boiler on a pre-existing system or replacing it, we suggest you also t strainers
on the system return pipework to the boiler to collect the deposits and scaling which may remain and be
circulated in the system after the initial lling.
When the boiler is xed on the template connect the ue and air ducts (ttings supplied by the manufacturer)
according to the instructions given in the following relevant sections.
Connect the condensate outlet to the siphon supplied with the boiler. Connect the siphon to a drain, making
sure there is a continuous slope. Horizontal sections must be avoided.

15 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
11. BOILER SIZE
Figure 6
0310_0103
0709_1001
C33
Figure 7
C13
12. INSTALLATION OF FLUE AND AIR DUCTS
We guarantee ease and exibility of installation for the boiler thanks to the ttings and xtures supplied (de-
scribed below).
The boiler is especially designed for connection to an exhaust ue / air ducting, with either concentric, vertical
or horizontal terminal.
Where exhaust and intake flues not
supplied by POTTERTON COMMER-
CIAL have been installed, these must
be certified for the type of use and must
have a maximum pressure drop of 100
Pa for the complete flue installation.

16 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
Concentric flue
This type of duct allows to emit exhaust gases and to draw combustion air from outside the building.
The 87° coaxial bend allows to connect the boiler to a ue-air duct in any direction as it can rotate through
360°.
If the ue outlet is placed outside, the ue-air ducting must protrude at least 18mm out of the wall to allow
alluminium weathering tile to be tted and sealed to avoid water leakages. If the terminal is below 2m then a
terminal gaurd is required.
Ensure a minimum downward slope of 3° towards the boiler.
A 87° bend reduces the total ue length by 1 metre.
A 45° bend reduces the total ue length by 0.5 metre.
1 2 3 4
WH50 Ø80/125 9 m 8 m 7 m 6 m
WH60 Ø80/125 9 m 8 m 7 m 6 m
WH70 Ø80/125 9 m 8 m 7 m 6 m
HORIZONTAL CONCENTRIC FLUES
Boiler Flue Size Number of Bends 90°
1 2 3 4
WH50 Ø80/125 9 m 8 m 7 m 6 m
WH60 Ø80/125 9 m 8 m 7 m 6 m
WH70 Ø80/125 9 m 8 m 7 m 6 m
VERTICAL CONCENTRIC FLUES
Boiler Flue Size Number of Bends 90°
1 2 3 4
WH50 Ø80 59,5 m 59 m 58,5 m 58 m
WH60 Ø80 59,5 m 59 m 58,5 m 58 m
WH70 Ø80 59,5 m 59 m 58,5 m 58 m
CONVENTIONAL FLUE
Boiler Flue Size Number of Bends 90°

17 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
12.2 VERTICAL FLUE TERMINAL Ø 80/125 mm INSTALLATION OPTIONS
This type of installation can be carried out both on a at or pitched roof by tting a terminal, an appropriate
weathering tile and sleeve, (supplementary ttings supplied as options).
L max = 10 m L max = 10 m L max = 9 mL max = 8 m
0310_0107
L = refer also the table
0602_0702
12.1 HORIZONTAL FLUE TERMINAL Ø 80/125 INSTALLATION OPTIONS
L = refer to table
Figure 8
990519_0400
Concentric outlet

18 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
To ensure the correct rated heat output to the maximum and minimum heat input, it is necessary to update
the speed (rpm) of the fan, it depends on the length of the ue (par. 12), in accordance with the installation of
ue and air pipes as indicated in the tables below. The factory-set value is referred to the minimum length of
ue pipe (0÷4 m for concentric, 0÷20 m for twin). To carry such updating, changing the speed of the fan (rpm)
at the maximum and minimum heat input, refer to par. 16.
CONCENTRIC PIPE Ø 80/125
(C13-C33-C43)
Pipes length
(m)
(*) 0 - 4
5 - 10
Parametres
H536-H613
Max heat output (rpm)
5500
5900
Parametres
H612
Min heat output (rpm)
1900
2100
WH 50
CONCENTRIC PIPE Ø 80/125
(C13-C33-C43)
Pipes length
(m)
(*) 0 - 4
5 - 10
Parametres
H536-H613
Max heat output (rpm)
5600
6000
Parametres
H612
Min heat output (rpm)
1650
1800
WH 60
CONCENTRIC PIPE Ø 80/125
(C13-C33-C43)
Pipes length
(m)
(*) 0 - 4
5 - 10
Parametres
H536-H613
Max heat output (rpm)
6000
6500
Parametres
H612
Min heat output (rpm)
1850
2100
WH 70
12.5 FAN RPM UPDATING DEPENDING ON FLUE LENGTH (e.g. figure 7)
(*) Default setting parameters
(*) Default setting parameters
(*) Default setting parameters

19 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
13. HYDRAULIC DIAGRAM
Applications and Installation Details
(Pumped heating circuits with remote control QAA73 or Room Thermostat, including hot-water tank, without
and with primary loop)
13.1 HYDRAULIC SYSTEM 1
Figure 9b
0602_0703/CG1756
(*)
(*)
(*)
with low loss header and primary loop
Figure 9a
0602_0704/CG1782
(*)
(*)
(*)
without low loss header
(*) optional extra
(*) optional extra

20 912.272.1 - GB/IEINSTRUCTIONS PERTAINING TO THE INSTALLER
• TS: Tank Sensor (QAZ36)*
• B3: Room Control Module (QAA73)*
• B1: Room Thermostat
• B9: Outdoor Temperature Sensor (QAC34) (supplied with the gas boiler)
• P1: Heating Pump
• PDHW: Hot Water pump
• PLP: Primary Pump (only for gure 9b)
(*) Available Optional Extra
• Pumps (Not Supplied)
• Isolating Valve (Not Supplied)
• Installer Wiring --------------
• Hot Water Cylinder (Not Supplied)
• Low Loss Header (Not Supplied)
• Non return valve (Not supplied)
Applications (pumps, sensor, remote control ...) have to be connected to terminal as follows (see also section
14):
WITH QAA73 WITH
REMOTE CONTROL ROOM THERMOSTAT
APPLICATION
TERMINAL BOARD TERMINAL BOARD
PRIMARY PUMP PLP (only for gure 9b) M1: A – B M1: A – B
DHW PUMP PDHW M3: 13 – 14 M3: 13 – 14
HEATING PUMP P1 M3: 11 – 12 M3: 11 – 12
DHW SENSOR TS M2: 7 – 8 M2: 7 – 8
REMOTE CONTROL QAA73 M2: 1 – 2 NO
ROOM THERMOSTAT M2: 3 – 4 OPEN M2: 3 – 4
PCB Description Setting Parameter
PARAMETER
H552 Hydraulic system H552 = 2
H553 KongHKS H553 = 21
H615 KongAusgang H615 = 9
H632 Wanfo Q8 H632 = 00001100
Parameter changes requires (see also section 16):