Page 1
8G.51.40.02/08.11 Changes reserved.
I n s t a l l a t i o n & S e r v i c i n g
Instructions
These instructions to be retained by user.
Boiler G.C No
Q 25S 41-310-08
Q 38S 41-310-09
Q 51S 41-310-10
Q 60S 41-310-11
Q 25C 47-310-10
Q 38C 47-310-11
Q 51C 47-310-12
CE PIN 0063BQ3021
Page 2
Installation & Servicing Instructions ATAG Q-Series
2
Central heating on / off
Domestic hot water (DHW) on / off
Pump programme on / off
Reset key Unlocking the boiler
in case of error
Step key Selecting chapters
display
Explanations of symbols and signs on the Control Tower display.
1
2
No heat requirement
Ventilation phase
Ignition phase
Burner active on central heating
Burner active on hot water
Fan check
Burner off when room thermostat is demanding
Pump overrun phase for central heating
Pump overrun phase for hot water
Burner off because of to high ow water temperature
Automatic venting programme
3
4
5
6
7
8
9
A
Water pressure is to low (<1,0 bar), ashing FILL will alternate with indication
of water pressure, boiler power of 50%
is possible. The installation needs to be
topped up.
Operation indication
(in the rst display position by technical read out)
Mode key Selecting chapters
Water pressure is to high (>2,8 bar), if
HIGH indication remains continuously visible, the boiler is taken out of operation.
The installation pressure needs to be
decreased by draining water.
Water pressure is to low (<0,7 bar), FILL
indication remains continuously visible,
the boiler is taken out of operation. The
installation needs to be topped up.
0
From Good-read out to Technical read out (and vice versa):
- Press 5 sec. on the STEP key.
Page 3
Installation & Servicing Instructions ATAG Q-Series
3
Content
1 Introduction ....................................................................................................................................4
2 Rules ............................................................................................................................................4
3 Scope of the supply ........................................................................................................................6
4 Description of the boiler .................................................................................................................6
5 Mounting the boiler .........................................................................................................................7
5.1 Dimensions .........................................................................................................................8
6 Connecting the boiler ...................................................................................................................10
6.1 Central heating system .....................................................................................................10
6.2 Expansion vessel ..............................................................................................................12
6.2.1 Expansion vessel module ................................................................................................. 13
6.3 Underoor heating system (plastic pipes) ......................................................................... 14
6.4 Gas connection .................................................................................................................14
6.5 Hot water supply ............................................................................................................... 14
6.6 Condensation drain pipe ...................................................................................................15
6.7 Flue gas exhaust system and air supply system ..............................................................16
6.7.1 Dimensions of the ue gas and air intake duct ................................................................. 20
7 External hot water cylinders .........................................................................................................21
8 Electrical connection .................................................................................................................... 22
9 Boiler controls ..............................................................................................................................24
9.1 Explanation of the function keys ....................................................................................... 25
10 Filling and venting the boiler and installation ...............................................................................26
10.1 Hot water supply ............................................................................................................... 26
11 Commissioning the boiler ............................................................................................................. 27
11.1 Central heating system .....................................................................................................27
11.2 Hot water supply ...............................................................................................................27
11.3 Adjustments ......................................................................................................................28
11.4 Activating factory settings (green key function) ................................................................30
12 Isolating the boiler .......................................................................................................................31
13 Commissioning .............................................................................................................................31
13.1 Checking for contamination ..............................................................................................32
13.2 Checking the CO2 /O2 .......................................................................................................33
13.3 Maintenance activities .......................................................................................................34
13.4 Draining the installation .....................................................................................................36
13.5 User's instructions .............................................................................................................37
13.6 Maintanance frequency .....................................................................................................37
13.7 Warranty ............................................................................................................................ 37
15 Technical specications ................................................................................................................38
16 Parts of the boiler .........................................................................................................................39
17 Installation examples ....................................................................................................................40
17.1 Radiator installation without thermostatic radiator valves .................................................40
17.2 Radiator installation with underoor heating zone ............................................................ 41
18 Error indication .............................................................................................................................42
19 Declaration of conformity .............................................................................................................43
20 Kiwa certicate .............................................................................................................................44
Benchmark Checklist ...................................................................................................................45
Service Record .............................................................................................................................46
Work on the installation should only be carried out by qualied personnel
with calibrated equipment.
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Installation & Servicing Instructions ATAG Q-Series
4
1 Introduction
These instructions describe the functioning, installation, use and primary maintenance
of ATAG central heating units for the United Kingdom and Ireland. Where necessary
the different regulations for each country are separately described.
These instructions are intended for the use by Gas Safe Register approved contractors
or registered Bord Gais installers in connection with the installation and putting into
operation of ATAG boilers. It is advisable to read these instructions thoroughly, well in advance of installation. Separate instructions for use are supplied with the boiler for users
of ATAG central heating boilers. ATAG is not liable for the consequences of mistakes
or shortcomings which have found their way into the installation instructions or user’s
manual. Further, ATAG reserves the right to alter its products without prior notication.
When delivering the unit, give the customer clear instructions concerning its
use; present the customer with the user’s manual and card.
Each unit is tted with an identication plate. Consult the details on this plate to verify
whether the unit is compliant with its intended location, e.g.: gas type, power source
and exhaust classication.
On completion of the installation the installer or commissioning engineer must ll
out and complete the Benchmark Commissioning Checklist found on page 45 of this
manual and hand this to the customer for future record keeping. The Benchmark
Service Record must also be completed by the service agent following each service
call, and return to the customer. A copy of the Benchmark Commissioning Checklist
must be returned to ATAG Heating along with the warranty registration card to register
the appliance for the standard warranty benets.
Relevant Installation, Service and User manuals:
- ATAG Cascade Hydraulic cascade system
- ATAG Monopass Flue system individual
- ATAG PP Overpressure Flue system cascade
- ATAG BrainQ Digital room thermostat
- ATAG MadQ Cascade-/Zone controller
2 Rules
The following regulations apply to installation of ATAG central heating units:
Legislation and Regulations.
Gas Safety (Installation and Use). All gas appliances must by law, be installed by a competent person, eg. Members of Gas Safe Register and in accordance with the current
Gas Safety Regulation. Failure to install appliance correctly could lead to prosecution.
All Gas Safe Register approved contractors carry a Gas Safe Register ID Card and
have a registration number. You can call Gas Safe Register direct on 01256 372300
In addition to the above regulations this appliance must be installed in compliance
with the current IEE Regulations, the Building Standards (Scotland Consolidation)
Regulations. Regulations and bye laws of the Local Water Authority and the Current
Health and Safety Regulation.
The Benchmark Scheme
Benchmark places responsibilities on both manufacturers and installers. The purpose
is to ensure that customers are provided with the correct equipment for their needs,
that it is installed, commissioned and serviced in accordance with the manufacturer’s
instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate
compliance with Building Regulations and should be provided to the customer for
future reference.
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Installation & Servicing Instructions ATAG Q-Series
5
Installers are required to carry out installation, commissioning and servicing work in
accordance with the Benchmark Code of Practice which is available from the Heating
and Hotwater Industry Council who manage and promote the Scheme.
Visit www.centralheating.co.uk for more information.
Ireland:
- Irish standard 813
- Domestic gas installations
The current, Electricity at Work Regulation must be complied with and also be in
accordance with the relevant and current editions of the British Standards.
The ATAG Q boiler is a certied appliance and must not be modied or installed in
any way contrary to this Installation Manual. Manufacturers instructions must not be
taken in any way as overriding statutory obligations.
The ATAG Q is a central heating unit with an optional integrated hot water function.
These units must be connected according to these instructions and all installation
norms in respect of the part of the unit to be connected.
Observe the following rules of safety:
- All work on the unit must take place in a dry environment.
- ATAG units may never be in operation without their housing, except in connection
with maintenance or adjustments (see Chapter 13 and 14).
- Never allow electrical or electronic components to come into contact with water.
Carry out the following tasks in connection with maintenance, etc. to an already-
installed unit:
- Shut down all programmes
- Close the gas tap
- Remove the plug from the wall socket
- Close the stop cock of the unit’s intake connection
Take note of the following when maintenance or adjustments are needed:
- The unit must be able to function during these activities; for this reason, the unit’s
supply voltage, gas pressure and water pressure must be maintained. Ensure that
these is not a source of potential danger during these activities.
Following maintenance or other activities; always check the installation of all
parts through which gas ows (using leak-search spray).
Following maintenance or other activities, always replace the housing and
secure it with the screw behind the door at the front of the casing.
The following (safety) symbols may be encountered in these installation instructions
and on the unit:
This symbol indicates that the unit must be stored away from frost.
This symbol indicates that the packaging and/or contents can be damaged as
a result of insufcient care taken during transport.
This symbol indicates that, whilst still in its packaging, the unit must be
protected from weather conditions during transport and storage.
KEY-symbol. This symbol indicates that assembly or dismantling, must be
carried out.
ATTENTION symbol. This symbol indicates that extra attention must be paid
in connection with a particular operation.
Useful tip or advice
Page 6
Installation & Servicing Instructions ATAG Q-Series
6
3 Scope of the supply
The boiler is supplied ready for use. The supply kit is composed as follows:
• Boiler with casing; • Gas isolation valve
• Automatic vent (inside the boiler); • Template on the package wrapper;
• Safety valve (inside the boiler); • Installation instructions;
• Suspension bracket • Operating manual;
• Draining valve with T-piece; • Warranty card;
• Fixing material consisting of plugs and • Benchmark logbook.
screws;
4 Description of the boiler
The ATAG Q boiler is a room sealed, condensing and modulating central heating
boiler, with or without an integrated hot water facility.
The boiler is provided with a compact stainless steel heat exchanger with smooth
tubes. A well thought out principal using durable materials.
The boiler burns gas for supplying warmth. The heat is transferred in the heat
exchanger to the water in the central heating system. By cooling down the ue gasses
condensate is formed. This results in high efciency. The condensate, which has no
effect on the heat exchanger and the function of the boiler, is drained through an
internal siphon.
The boiler is provided with an intelligent control system (CMS Control Management
System). The boiler anticipates the heat demand of the central heating system or the
hot water facility.
When an outside sensor is connected to the boiler works weather dependantly. This
means that the boiler control measures the outside temperature and ow temperature.
With this data the boiler calculates the optimal ow temperature for the installation.
Explanation of the type indication: ATAG Q 51C
Q = Type
51 = Nominal load in kW
C = Combi (S = Solo)
The boiler has been tested according to valid CE* standards and has a CE* certicate
and SEDBUK A-rating.
Statement: No banned materials including asbestos, mercury, CFC's have not or will
not be included in the product.
Room sealed boiler
The boiler retreives its
combustion air to outside then discharges
the ue gasses to the
outside.
Condensing
Retrieves heat from
the ue gasses. Water
condensates on the
heat exchanger.
Modulating
Higher or lower burning
according to the heat
demand.
Stainless
Super solid kind of
steel which keeps its
quality for life. It will
not rust or erode in
contrast to composition
materials, like aluminium.
Page 7
Installation & Servicing Instructions ATAG Q-Series
7
5 Mounting the boiler
The room where the boiler will be placed must always be frost free.
It is NOT necessary to have a purpose provided air vent in the room or internal
space in which the boiler is installed. Neither is it necessary to ventilate a cupboard
or compartment in which the boiler is installed, due to the extremely low surface
temperature of the boiler casing during operation. Therefore the requirements of BS
6798, Clause 12, and BS5440:2 may be disregarded.
The boiler can be mounted practically to any wall with the suspension bracket and the
enclosed xing equipment. The wall must be at and of sufcient strength in order to
be able to carry the boiler weight with its water content.
Above the boiler there must be at least 250 mm working space in order to be able to
t a coaxial ue system or a twin supply. On the left side of the boiler at least 50 mm
and on the right side 10 mm must be reserved to allow tting or removing of casing.
The location of the boiler can be determined by using the template located inside the
boiler packaging.
Lift the boiler only by the boilers rear wall.
Lifting and carrying precautions:
- Lift only a manageable weight, or ask for help.
- When lifting the boiler, bend the knees, and keep the back straight and feet
apart.
- Do not lift and twist at the same time.
- Lift and carry the boiler close to the body.
- Wear protective clothing and gloves to protect from any sharp edges.
Page 8
Installation & Servicing Instructions ATAG Q-Series
8
Solo
Combi
Boiler type
Q25S
Q38S
Q51S
Q60S
Q25C
Q38C
Q51C
mm mm mm mm
A Height
680
680 680 680
B Width
500 660 840 1000
C Depth
385 385
385 385
D Left side / flue gas exhaust
335 495 335 495
E
Centre to centre / flue gas exhaust
and supply
120 120 120
120
F back / flue gas exhaust
270 270 270 270
G
Left side / gas pipe
65
65 65 65
H Left side / flow pipe
185 185 185 185
J
Left side / return pipe
285 445
285 445
K Left side / condensate pipe
370 530 370 530
L
Left side / expansion pipe
430
430 590
M Left side / return pipe DHW
475
N Left side / cold water pipe
725 885
O Left side / hot water pipe
795 955
P Pipe length of g*
18
18 18 18
Q Pipe length of c*
50 50 50 50
R Pipe length of f, r, e, d, k and w*
60
60 60 60
S Back / Centre of pipe c*
25 25 25 25
T Back / Centre of pipe g*
40 40 40
40
U Back / Centre of pipe f, r, e, d, k and w*
50 50 50 50
5.1 Dimensions
dimensions talel 1
dimensions (in mm) gure 1
wall
C
E
F
A
U
T
S
wall
B
M
N
PQR
B
wall
D
H
J
K
1050
G
L
H
J
K
G
D
ceiling
Minimal 250mm
L
P
Page 9
Installation & Servicing Instructions ATAG Q-Series
9
Solo Combi
Boiler type
Q25S
Q38S
Q51S
Q60S
Q25C
Q38C
Q51C
Combustion air supply / flue gas
system
mm 80/125 80/125 80/125 80/125
Gas pipe - g
½" female ¾" female ½" female ¾" female
Flow pipe - f
mm
28 35
28 35
Return pipe - r
mm 28 35 28 35
Condensate pipe - c
mm 24 24 24 24
Expansion pipe - e
mm 22 22
Cold water pipe - k
mm 15 15
Hot water pipe - w
mm 15 15
Return pipe DHW - d
mm 28
connection diameters table 2
boiler connections gure 2
g a r c e k w
g a r c
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Installation & Servicing Instructions ATAG Q-Series
10
6 Connecting the boiler
The boiler has the following connection pipes;
- The central heating pipes.
These can be connected to the installation by means of compression ttings;
- The gas pipe.
It is provided with a female thread into which the tail piece of the supplied gas
isolation valve can be screwed;
- The condensation drain pipe.
It consists of an oval 24 mm plastic pipe. The drain pipe can be connected to this
by means of an open connection. If the open connection is tted in a different
location, then the pipe can be lengthened by means of a 32 mm PVC sleeve;
- The ue gas exhaust system and air supply system.
It consists of a concentric connection 80/125 mm.
- Cold and hot water pipes.
Only Combi boilers: These consist of 15 mm copper pipe and can be connected
to the installation by means of compression ttings.
It is recommended that isolation valves are tted to all heating and hot water
connections to facilitate ease of future maintenance.
It is advisable to spray-clean all of the unit’s connecting pipes and/or to
spray-clean/blow-clean the installation before connecting it to the unit.
6.1 Central heating system
Connect the central heating system according to the actual regulations.
The boiler pipes can be connected to the installation by means of compression ttings.
Reducers should be used for connecting to thick-walled pipe (welded or threaded).
When removing the plastic sealing caps from the pipes, contaminated testing
water may be released.
The boiler has a self-adjusting and self-protecting control system for the load and the
pump capacity. By this means the temperature difference between the ow and return
water is checked. Table 3 shows the water displacement which supplies the circulation
pump at certain installation resistance.
A low velocity header must be connected to the Q51C, Q51S and Q60S to
prevent ow problems over the boiler.
ATAG supplies the AA1OV09U Low velocity header for 1 boiler. This can be connected
directly under the boiler on the ow and return pipe.
Boiler type pump type water flow rate permissible installation
resistance
UPER l/min l/h kPa mbar
Combi
Q25C
20-60
16,2 972 29 290
Q38C
20-70 24,6 1478 20 200
Q51C
20-70 30,1 1803
Solo
Q25S
20-60 9,7 583 47 470
Q25S
20-60 16,2 972 32 320
Q38S
20-70 24,6 1478 22 220
Q51S
20-70 30,1 1803
Q60S
20-70 38,9 2333
Installation resistance table 3
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Installation & Servicing Instructions ATAG Q-Series
11
If the installation resistance is higher than the stated value the pump will rotate at
maximum pump capacity and the load will be adjusted until an acceptable temperature
difference between ow and return water has been obtained. If, after this, the
temperature difference remains to much then the boiler will switch itself off and wait
until an acceptable temperature has arisen.
If an unacceptable temperature is detected, then the control will repeatedly try to
achieve water ow, and if this does not work then the boiler will switch off.
If the capacity of the boiler pump is insufcient, an extra external pump can be installed
in combination with a low velocity header in series with the boiler. The electrical side
of this external circulation pump can be connected in the Control Tower, by which
means this pump switches at the same times as the boiler pump.
The maximum absorbed current consumption of the external circulation pump may be
230 W (1 Amp). The extra external pump must be selected according the installation
resistance and required ow.
pump index lines graph 1
Q(m³/h)
100%
UPER 20-70
Q25C, Q38C
Q25S, Q38S
100%
UPER 20-60
H(m)
25%
UPER 20-60
25%
UPER 20-70
As standard the boiler is provided with a water lter in the return pipe of the boiler.
With this, possible contamination of the central heating water is prevented from ending
up in the boiler. The boiler is also provided with an internal safety valve set at 3 bar.
This is connected to the waste discharge together with the condensation discharge.
If all, or a large part of the radiators are provided with thermostatic radiator valves
it is advisable to use a pressure difference control (bypass) in order to prevent ow
problems in the installation.
The boiler is designed to be used on sealed system only.
Additives in the installation water are only permitted in consultation with the
country distributor.
When using more than one boiler in an installation please refer to the cascade
installation instructions.
external installation pump
with low velocity header
gure 3
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Installation & Servicing Instructions ATAG Q-Series
12
6.2 Expansion vessel
The central heating system must be provided with an expansion vessel. The expansion
vessel which is used should be geared to the water content of the installation. The
pre-charge pressure depends on the installation height above the mounted expansion
vessel. See table 4.
All Combi boilers are provided with an expansion vessel connection. This pipe is
connected with the three way valve and boiler pump. This prevent the expanding
water, during hot water production, is being closed off from the expansion vessel,
when the thermostatic radiator valves are fully closed. A second expansion vessel in
the installation is not a problem.
The Solo boilers Q15S, Q25S and Q38S are provided with an expansion vessel
connection. When this boiler is combined with a cylinder, the expansion vessel
connection is included in the internal piping of the cylinder circuit, to which the
expansion vessel can be connected.
In connection with correct functioning of the boiler it is necessary for the
expansion vessel to be connected to the expansion vessel pipe of the boiler.
The Solo boilers Q51S and Q60S are not provided with an expansion vessel
connection. When one of these Solo boilers is combined with a cylinder then one
has to take into account that the expansion vessel should be connected between the
three-way valve and the boiler circulation pump.
choice of expansion vessel table 4
installation height above
the expansion vessel
pre-charge pressure
of the expansion vessel
5 m 0,5 bar
10 m 1,0 bar
15 m 1,5 bar
Page 13
Installation & Servicing Instructions ATAG Q-Series
13
side view of the module with boiler (dimensions in mm) gure 5
540
wall
155
385
front view of the module with boiler (dimensions in mm) gure 6
660105
6.2 Expansion vessel module
The ATAG Q25S and Q38S boilers can be provided with an expansion vessel module.
By this means the external expansion vessel is not required. This expansion vessel
module is placed behind the ATAG Q boiler, by which means the expansion vessel is
not noticeable. The content of the two expansion vessels is 20 litres. The pre-charge
pressure is 1 bar.
The expansion vessel module can be supplied with the necessary pipes to connect
with the ATAG Q boiler. The connecting pipes for the installation correspond with those
of the boiler and have the same centre-to-centre distance to the wall.
When checking the expansion vessels these are accessible via the left, right and
upper sides. From these sides the tanks are also removable and the boiler does not
have to be dismantled.
The space which is required for mounting the expansion vessel module corresponds
with the required space for mounting an ATAG Q boiler. They included template and
mounting strip for the boiler which can be used for the expansion vessel module. The
boiler is tted on to this after the expansion vessel module has been mounted. The
necessary mounting strip for the boiler is present on the module.
Article numbers:
- the expansion vessel module without pipe connections AA1EM09U
- pipe connections for expansion vessel module AA1LE04U
480
expansion vessel module
gure 4
120
270
Page 14
Installation & Servicing Instructions ATAG Q-Series
14
6.3 6.3 Underoor heating system (plastic pipes)
When connecting or using an underoor heating system, designed with plastic
pipes, or plastic pipes are used elsewhere in the installation,one should ensure that
the plastic pipes used comply with the DIN 4726/4729 standard. It is set out in this
standard that the pipes may not have oxygen permeability higher than 0.1 g/m³.d at
40°C. If the system does not comply with this DIN standard, the underoor heating
component will have to be separated from the central heating appliance by means
of a plate exchanger.
No recourse can be made to the terms of the warranty in the event of failure
to observe the regulations pertaining to plastic underoor heating pipes.
6.4 Gas connection
The appliance pipe is tted with an internal thread, into which the tail piece of the gas
isolation valve can be screwed.
United Kingdom:
The gas supply must comply to the current Gas Safety Regulations.
Ireland:
- Irish standard 813
- Domestic gas installations
The connection to the appliance must include a suitable method of disconnection and
a gas control cock must be installed adjacent to the appliance for isolation purposes.
The nominal inlet working gas pressure measured at the appliance should be 20 mbar
for Nat gas (G20).
Make sure that the gas pipe work does not contain dirt, particularly with new
pipes.
When the boiler has to be converted from natural gas to LPG, ATAG provides special
kits for this purpose. Special instructions are supplied with the kit.
Always check the installation of all of the parts through which gas ows
(using leak-search spray)
6.5 Hot water supply
Connection of the drinking water installation should be done according to the national
water laws.
The sanitary water pipes can be connected to the installation by means of compression
ttings. The cold water inlet on the Combi boilers must be provided with the following
(counted in the water ow direction):
Dosing valve (supplied), Safety group, Expansion vessel 6bar (potable water, blue).
A dosing valve must be tted in the cold water pipe. The dosing valve ensures that
a quantity of water is supplied which has a guaranteed outlet temperature of 60°C
(assuming a cold water temperature of 10°C). The quantity of water is virtually
unaffected by the water pressure.
With a water pressure lower than 1.5 bar it is advisable to remove the inside
mechanism of the dosing valve.
Page 15
Installation & Servicing Instructions ATAG Q-Series
15
6.6 Condensation drain pipe
ATAG boilers produce condensate. This condensate must be drained otherwise the
boiler will not function.
The collecting condensation drain pipe should be connected to the drain by means
of an open connection. By this means the possibility of drain gases ending up in the
boiler is prevented. The drain connection should have a minimum diameter of 32mm.
Connect the condensation drain pipe according to the actual regulations.
The following components are connected to the collective condensation drain pipe:
- Condensation discharge;
- Safety valve;
Draining of the condensation water to the external rain guttering is not
permitted in view of the danger of freezing.
Before putting the boiler into operation ll the siphon with 300 ml of water.
The condensate pipe must be run using suitable corrosion resistant materials
(eg. plastic).
Page 16
Installation & Servicing Instructions ATAG Q-Series
16
6.7 Flue gas exhaust system and air supply system
The ue gas exhaust system and air supply system consists of:
- Flue gas pipe;
- Air supply pipe;
- Roof or wall terminal.
The ue gas exhaust system and air supply system must comply with:
United Kingdom:
The ue gas outlet and air supply installation must comply with the current regulation
requirements. IG UP 10 and BS 715.
Ireland:
- Irish standard is 813 section 9.10.1
Open boiler
Room sealed system
SS
PP
SS
PP
PP
SS
PP
Open boiler en roomsealed system gure 8
PP
PP/MW PP/MW PP/MW
All ue gas parts, which are outside the re
resistant cover, need to be in stainless steel.
Boiler Class C
Permitted only
when the air
intake and the ue gas
outlet are in the same
pressure area.
BoilerClass B
Free exhaust area
Air lter
Page 17
Installation & Servicing Instructions ATAG Q-Series
17
The appliance connection diameter is 80/125 mm, to which the ue gas outlet and air
supply system can be tted, with or without elbow pieces. The maximum permissible
pipe length is set out in Table 5.
Boiler conversion from concentric to parallel
It is also possible to use a parallel pipe connection of 2x 80mm. In this case a conversion kit 'concentric tot parallel' should be ordered. Art.nr. S4440520.
A. 1. Push the 2 clips slightly outwards.
B. 2. Pull the concentric adaptor out of the boiler.
3. Press the cover in the connection at the back from inside out.
C. 4. Pull the rubber seal around the bottom of the ue connector.
5. Push the ue connector in the boiler, in the boiler ue pipe until
‘CLICK’.
6. Push the ø125mm cover over the ue connector in the ø125mm
opening until ‘CLICK’.
7. Push the rubber plug in open position in the O2 measuring opening and
close the stop.
8. Push the gasket around the top of the ue connector.
D. Connect the parallel ue gas and air intake system (2x ø80mm).
A
1
B
2
3
C
4
7
5
6
8
D
boiler conversion from
concentric to parallel
gure 7
Page 18
Installation & Servicing Instructions ATAG Q-Series
18
We advise to build a simple ue gas system and air supply system out of table 6.
For further information about the available components of the ue gas and air supply
system we recommend you consult the Monopass Flue systems.
The ATAG ue gas system is meant and designed solely the use on ATAG central
heating boilers adjusted for Nat gas or LPG. The maximum ue gas temperatures
are below 70°C (full load 80/60°C)
The proper operation can be inuenced harmfully by changes of or adjustments to
the correct set up.
Possible warranty claims will not be honoured if incorrect changes result in non
compliance with the installation manual or local rules and regulations.
The ue gas systems described in this document are solely suited for ATAG central
heating boilers of the ATAG boiler range. For this purpose the CE Certicate has been
supplemented under the Gastec nr: 0063BQ3021, 0063AS3538 and 0063AU3110.
The ue gas system should be built up using only ATAG program products.
Combinations with other brands or systems are without written permission from
ATAG Heating is not permitted.
Horizontal ue system should always be installed sloping towards the boiler, in order
to avoid condensate lying in the ue system.
The minimum gradient is 50mm/Mtr. With the condensate running back to the boiler
the risk of ice forming at the terminal is reduced.
The terminal should be located where dispersal of combustion products is not impeded
and with due regard for the damage or discolouration that might occur to building
products in the vicinity (see g 9).
terminal position for fan assisted boiler
minimum
distance
A
directly below an open window or other opening
(e.g. air brick)
mm 300
B below gutters, soil pipes or drain pipes
mm 75
C below eaves
mm
200
D below balconies or car port roof
mm 200
E from vertical drain pipes and soil pipes
mm
75
F from internal or external corners
mm 300
G
above ground or below balcony level
mm 300
H from a surface facing a terminal
mm 600
I
from a terminal facing a terminal
mm
1200
J
from an opening in the car port (e.g. door
window) into dwelling
mm 1200
K vertically from a terminal on the same w all
mm
1500
L horizontally from a terminal on the same wall
mm 300
M
horizontally from a vertical terminal to a wall
mm 300
Dimensions table 6
gure 9
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Installation & Servicing Instructions ATAG Q-Series
19
In certain weather conditions condensation may also accumulate on the outside of the
air inlet pipe. Such conditions must be considered and where necessary insulation of
the inlet pipe may be required.
In cold and/or humid weather water vapour may condense on leaving the ue terminal.
The effect of such ‘plumeing’ must be considered.
The terminal must not be located in a place where it is likely to cause a nuisance.
For protection of combustibles, refer to IS 813 section 9.10.1. where the terminal is less
than 2m (6.6ft) above a pavement or platform to which people have access (including)
any balcony or at roof the terminal must be protected by a guard of durable material.
A suitable guard is available from the country distributor.
Where a terminal is tted below a window which is hinged at the top, and
where the hinge axis is horizontal, and the window opens outwards, the
terminal shall be 1m below the bottom of the window opening.
If the boiler is to be located under stairs, a smoke alarm meeting the
requirements of I.S. 409 or equivalent must be tted.
The ue must be terminated in a place not likely to cause a nuisance.
For horizontal sections, the outlet system should always be tted on an incline (50
mm/m) sloping down towards the appliance so that no condensation water is able to
accumulate in the outlet system. The chances of icicles forming on the roof outlet is
minimised by causing the condensation water to run back towards the appliance. In
the case of horizontal outlets the inlet system should be tted on an incline sloping
down towards the outside to prevent rainwater from coming in.
The appliance produces a white wisp of condensation (plumeing). This wisp of
condensation is harmless, but can be unattractive, particularly in the case of outlets
in outside walls.
At this time there are 2 different ways of connecting the ue gas/air intake system.
The ue gas duct for the 60/100, 80/125 and 100/150 are push t connections, see
gure 10. The air intake for the 60/100 is a clamp ring connection.
These two types are not interchangeable.
Cutting the pipe goes as follows:
- Take out the inner tube by turning it until it releases from its security position;
- Cut just as much from the air intake part as from the ue gas part;
- Take off the burrs from the cutting edge to prevent cutting the seals;
- Click the pipes back together again.
Use special grease to simplify the tting
When mounting the ue gas system, pay attention to the ow direction. An arrow on
the product points this out. It is not permitted to mount a system upside down and
will lead to complaints.
Dismantlement and shorten pipes figure 11
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Installation & Servicing Instructions ATAG Q-Series
20
6.7.1 Dimensioning of the ue gas and air intake duct
The ue diameter is determined by the total length of the run, including for the
connection pipe, elbows ttings and terminal covers etc and the type and number of
boilers installed into the system.
An undersized ue pipe can lead to disorders. Look at table 1 for the choice of the
system and the correct diameter. The table below shows the maximum ue lengths
with the different boiler outputs. A longer ue gas length can be achieved by increasing
the diameter to ø 100mm.
Explanation table 1:
Two pipe ue gas system: maximum noted length = distance between boiler and
roof terminal A
Concentric ue gas system: maximum noted length = distance between boiler and
roof terminal B
When using bends the noted value behind every bend should be deducted from the
maximum straight length.
Pipes with 60/100 diameter are only permitted on wall terminals in
combination with ATAG boilers untill 25kW.
ø80mm
A
in m
ø100mm
A
in m
16-25 kW Maximum straight lenth 80 31 Maximum straight lenth 100 40
87° bend resistance length -1,5 87° bend resistance length -1,8
45° bend resistance length -0,8 45° bend resistance length -0,9
26-38 kW Maximum straight lenth 80 18 Maximum straight lenth 100 39
87° bend resistance length -1,5 87° bend resistance length -1,8
45° bend resistance length -0,8 45° bend resistance length -0,9
39-60 kW Maximum straight lenth 80 6 Maximum straight lenth 100 18
87° bend resistance length -1,5 87° bend resistance length -1,8
45° bend resistance length -0,8 45° bend resistance length -0,9
ø60/100mm
B
in m
ø80/125mm
B
in m
ø100/150mm
B
in m
16-25 kW Maximum straight lenth 60/100 12 Maximum straight lenth 80/125 31 Maximum straight lenth 100/150 40
87° bend resistance length -1 87° bend resistance length -2,8 87° bend resistance length -2,6
45° bend resistance length -1 45° bend resistance length -1,1 45° bend resistance length -1,1
26-38 kW Maximum straight lenth 80/125 13 Maximum straight lenth 100/150 34
87° bend resistance length -2,8 87° bend resistance length -2,6
45° bend resistance length -1,1 45° bend resistance length -1,1
39-60 kW Maximum straight lenth 80/125 6 Maximum straight lenth 100/150 10
87° bend resistance length -2,8 87° bend resistance length -2,6
45° bend resistance length -1,1 45° bend resistance length -1,1
Concentric flue system
Two pipe flue system + chimney lining
Dimensions ue gas system and air supply system Table 5
Example:
A 25kW with a concentric
ue gas system ø80/125mm
has according to the table a
maximum ue straight length
of 31m In the system that is
going to be put in there are 2
x 45° bends, so the maximum
ue gas length is
31 – ( 2 x 1.1 ) = 28.8 meters.
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Installation & Servicing Instructions ATAG Q-Series
21
7 External hot water cylinders
Depending of the comfort preferences different external hot water cylinders can be
connected to the boiler. The choice of the cylinder depends on the coil output. The coil
output must comply with the boiler output.
A cylinder which is used in combination with a Q 51S or Q 60S, should have a minimal
capacity of 40 kW resp. 45kW (minimal ø28mm coil). The maximum permitted
pressure drop is respectively 20 and 10 kPa at a ow of respectively 1417 and 1587 l/h.
See installation example 17.2 on page 40 for the hydraulic connection.
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22
8 Electrical connection
The appliance complies with the CE Machinery Directive 89/392/EEC. The EC Low
Voltage Directive 72/23/EEC and the EC EMC Directive 89/336/EEC.
A 230V -50Hz mains electrical supply is required fused externally at 5A.
The installation must continue to comply with:
United Kingdom:
- the national rules for electrical installations.
Ireland:
- the ECTI national rules for electrical installations
The appliance must be connected to an earthed socket. this must be visible and
within reach.
The following general stipulations also apply:
- No changes may be made to the wiring of the appliance;
- All connections should be designed in accordance with the enclosed regulations.;
- Should it be necessary to change it, the mains power supply cable may only be
replaced with an ATAG mains power supply cable (item No. S4407300).
The ATAG room thermostat and controls must be connected to their allocated
connections. All other types or makes of room thermostats or controls which
are used must have a Volt free contact.
When using an on/off thermostat or control, it is possible that an anticipating resistance
must be installed in order to prevent too high temperature uctuations. As a standard
rule this means mercury thermostats. This resistance wire is present in the Control
Tower and must be connected to clamps 23 and 27. The anticipating resistance in
the room thermostat has to be set at 0.11 A.
For more detailed questions regarding the components which are not supplied, the
country distributor should be contacted.
boilercombinaties tabel 6
Connection terminalQ
Connection terminal gure 10
230 Volts for exter-
nal pump
mains power
supply
230 Volts for exter-
nal control
230 Volts
internal or external
three-way valve motor
and cylinder sensor
ATAG
room thermostat
On/off thermostat or
control (Volt free)
ATAG outside sensor
External safety contact
24 Volts
maximum 100 mA
Page 23
Installation & Servicing Instructions ATAG Q-Series
23
electrical diagram gure 11
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Installation & Servicing Instructions ATAG Q-Series
24
9 Boiler controls
The boiler is provided with a fully automatic microprocessor control, called CMS
Control Management System. This control simplies operation by undertaking all
major control functions. Initially when power to the unit is switched on it will remain on
standby. There is no indication Led on, untill one of the programme keys is pressed.
The control panel display will show the relevant state. When the installation is empty
the display will show FILL.
The various parameters can be called up in two ways:
The Good-state or standard read out
The rst way shows a simple display read out.
The boiler in operation will always show 'Good'. When a message is necessary this
will be shown instead of Good.
Technical read out
The second way is a technical read out. In normal situations the following will be shown:
• on the left the status in which the boiler is active;
• on the right the ow temperature;
• the water pressure in the installation.
When a message (error or blocking code) is necessary this will be shown instead of
the technical read out..
To switch over from the Good-state to the Technical read out (and vice versa):
- Press 5 sec. on the STEP-key.
When the system has been lled the automatic venting program starts, when a programme
has been selected, by pressing the key for Central Heating, DHW or pump programme
(
, of ). The programme takes 17 minutes and stops automatically. After this
the unit will function normally. (See also 'Filling and venting the boiler and installation).
On a call for heating or hot water the control system will select the required water control
temperature. This water temperature is called the T-set value. On a call for central
heating the boiler ignites rst at low input. The input is then changed slowly to match
the load required. The boiler operates in this way to avoid excessive water noises and
temperature overshoot. On a call for hot water supply the T-set value of central heating
return water temperature is monitored. Depending on the amount of sanitary water which
is withdrawn from the DHW cylinder, the central heating return water temperature,
from which the input is adjusted, will vary.
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Installation & Servicing Instructions ATAG Q-Series
25
9.1 Explanation of the function keys
- Central Heating programme key.
Switching the Central Heating on or off (Led on/off);
- Hot Water programme key.
Switching the Domestig Hot Water (DHW) facility on or off (Led on/off);
- PC programme key.
adjusts the pump to continuous water circulation in the central heating system (Led
on), or according to the pump overrun times on the relevant programs (Led off);
• Mode-key.
After briey pressing, a selection of the data chapters can be retrieved.
After pressing for 5 seconds it is possible to enter the code as described in chapter
11.3;
• Step-key.
After briey pressing, the water pressure can be retrieved and pages per chapter
can be retrieved.
After pressing for 5 seconds it switches from the Good-state to technical read out
and vice versa;
• Reset-key.
After briey pressing, for:
- unlocking errors;
- ending the access code;
After pressing for 5 seconds an operating stop is made, for example, for activating
the automatic venting programme.
Some keys have other functions.These functions are only active when according to
the procedure described in chapter 11.3, adjustment has to be changed or data must
be retreived from the CMS.
The other functions are:
- Central Heating programme key : + function;
- Hot Water programme key: - function;
- PC programme key : store-function, which means that by means
of this key a modied setting is conrmed;
- Step-key: scrolling in a data chapter.
When the pump is
switched on continuously
it can lead to undesired
heating up of the central
heating system during the
summer.
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Installation & Servicing Instructions ATAG Q-Series
26
10 Filling and venting the boiler and installation
The central heating installation needs to be lled with potable water. For lling or
topping up the installation you use the lling loop according to the following procedure:
1 Switch on the power supply;
2 The diplay will show FILL;
3 All functions off (heating, DHW and pump);
4 Push briey the 'STEP'-button: P x.x = water pressure in bar;
5 Open the lling loop (Indication on display increases);
6 Fill up slowly to 1.5 to 1.7 bar;
7 STOP appears on the display;
8 Close the lling loop;
9 De-aerate the complete installation, start at the lowest point;
10 Check the water pressure and if necessary top it up;
11 Close the lling loop;
12 Activate the functions in use (heating , DHW and/or pump );
13 If A xx appears on the display, wait for 17 minutes;
14 Check the water pressure and if necessary top it up to 1,5 to 1,7 bar
15 Close the lling loop;
16 Press the ‘STEP’-button;
17 Be sure that the lling loop is closed.
18 After the automatic de-aeration programm (A xx) is nished the boiler will return
to the Good state or Technical read out.
Check the water pressure regularly and top up the installation when necessary.
The working pressure of the installation should be between 1.5 and 1.7 bar when the
installation is cold.
It can take a while before all air has disappeared from a lled installation.
Especially in the rst week noises may be heard which indicate the presence
of air. The automatic air vent in the boiler will make this air disappear, which
means the water pressure can reduce during this period and therefore
topping up with water will have to be done.
10.1 Hot water supply
Apply the water pipe pressure to the cylinder (open main valve and/or stop valve of
the safety group).
Vent the cylinder and the hot water installation by opening a hot water tap. Leave the
tap open for as long as required until all air has disappeared from the cylinder and
the pipes and only water is owing from the tap.
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Installation & Servicing Instructions ATAG Q-Series
27
11 Commissioning the boiler
Before the boiler is red, ensure that the boiler and the system are well vented and
free of air. Purge the gas line between the gas meter and the boiler and carry out a
gas soundness test as specied in the current Gas Safety Regulations.
The boiler does not require adjustment of the burner pressure and air quantity because
it is self adjusting and is factory set at the correct value.
11.1 Central Heating system
Provided there is a heat requirement from the thermostat or control, the central
heating programme will be put into operation by means of the key (central
heating programme). The circulation pump will start circulating and the boiler will
start the burner.
11.2 Hot water supply
Provided there is a heat requirement from the cylinder the hot water programme will
be put into operation by means of the
key (hot water programme).
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Installation & Servicing Instructions ATAG Q-Series
28
11.3 Adjustments
When the boiler is installed it is in principal ready for use. All adjustments of the boiler
control are already pre-programmed for a heating system with radiators/convectors
with a ow temperature of 85°C. The adjustments are described in the Parameter
chapter on page 28.
In certain cases adjustment have to be altered in case of :
- Lower ow temperature
- More boilers in Cascade, i.e..
Read through the Parameter chapter to adjust the boiler to its installation.
Contact ATAG Heating in case of doubt.
Please follow next procudere to alter adjustments:
Altering adjustments
Press the Mode-key for 5 secondss.
The display shows COdE followed by an arbitrary number;
Press by means of the + or the - key until the code C123 is shown;
Press the STORE-key to conrm the code (code blinks1 x).
Now you have acces to the installer level. There are 4 chapters:
• PA RA Parameters
• I N F O Information chapter (no adjustments possible)
• S E R V Service chapter
• E R R O Error-chapter (no adjustments possible)
The content of the chapters is described on the following pages.
Press briey the MODE-key to select one of the 4 chapters, i.e. PARA;
Press once or more briey on the STEP-key to select a Parameter
(parameter visible on the left, value on the right) ;
Alter the value, if necessary/possible, by means of the + or the - key
Press briey on the STORE-key to conrm the alteration.
When you have to change more values, repeat from step 5.
Press once or more on the MODE-key until StBY or Good is shown:
After a few seconds the text StBY will be replaced by the technical read-out
or Good-state (Depending from the position the acces code is keyed in)
When you want to return from an arbitrary position to the original read out
press once or more on the MODE-key until StBY is shown.
When during 20 minutes no single key is used the display will return automatically to
its original read-out (Good state or technical read out)
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
STEP 7
STEP 8
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Installation & Servicing Instructions ATAG Q-Series
29
Parameter-Mode
PARA Factory Description Range
1 70°C maximum flow temperature CH 20 - 85°C
2* 02 type of CH installation:
radiators; air heating; convectors:
T max. flow 85°C; K factor heating line 2.3; gradient 5°C/min; gear
01
radiators with large surface areas or underfloor heating as additional heating:
T max. flow 70°C; K factor heating line 1.8; gradient 5°C/min; gear
02
under floor heating with radiators as additional heating:
T max. flow 60°C; K factor heating line 1.5; gradient 4°C/min; gear
03
full under floor heating:
T max. flow 50°C; K factor heating line 1.0; gradient 3°C/min; gear
04
3 max. maximum power CH in kW min-max
4* 00 control principal with on / off thermostat:
100 % on / off thermostat 00
100 % on / off weather dependant 01
5* 2.3 heating line K-factor (see also heating line graph) 0.2 - 3.5
6* 1.4 heating line exponent (see also heating line graph) 1.1 - 1.4
7* -10 heating line climate zone (see also heating line graph) -20 - 0
10* 0°C fine adjustment heating line day temperature -5 to 5°C
11* 0°C fine adjustment heating line night temperature -5 to 5°C
14 5 gradient speed 0 - 15
15* 0 booster after night reduction:
no 00
yes 01
23 -3°C Frost Temperature -20 to 10°C
27 0°C Min. flow temperature 0 to 70°C
31 63°C Cylinder temperature with external cylinder sensor 40 - 80°C
36 0 Type of three way valve cylinder
VC 2010 / VC 8010 00
VC 6940 01
43 max. Maximum power DHW in kW min-max
45 0 No function 00 - 01
48 25% (50%) Minimum pump capacity (Q60S) 25-100 %
49 100% Maximum pump capacity Heating 40-100 %
60 03 Type of communication bus:
Automatic recognition of ATAG Bus or ATAG Z-Bus
(30 Seconds waiting time after connecting BrainQ RSC thermostat)
01
ATAG Z-Bus 02
ATAG Bus (BrainQ and MadQ) 03
89 00 Address of boiler in cascade
No function -01
ATAG Bus thermostat (BrainQ, MadQ) 00
Cascade boiler 1 to 8 (Always set Par. 60 to 03) 00 - 07
. . . .
Info-Mode
INFO Factory Description
. . . .
1 °C flow water temperature T1
4 °C return water temperature T2
5 °C DHW temperature T3
7 °C outside temperature T4
8 °C flue gas temperature T5
16 % actual power in %
17 kW actual power in kW
18 kW actual load in kW
20 indication bus communication
21 GJ
consumption total in GJ (.. x 33 = .. m
3
)
22 GJ
consumption CH in GJ (.. x 33 = .. m
3
)
23 GJ
consumption DHW in GJ (.. x 33 = .. m
3
)
24 Std total number of burner run hours
25 Std number of burner run hours CH
26 Std number of burner run hours DHW
32 Std total number of hours counter
37 Std total number of run hours pump CH and DHW
46 Std within how many hours is service required
48 0,1µA Ionisationstrom
. . .
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Installation & Servicing Instructions ATAG Q-Series
30
Service-Mode
SERV Value Description Range
1 OFF boiler in operation with burner function on OFF - max.
2 OFF fan adjustable and burner off OFF - max.
3 OFF pump adjustable with burner on OFF - max.
4 OFF showroom position ON = active and OFF = non active ON - OFF
. . . .
Error-Mode
ERRO Value Description
Err.L - Err.5 Last saved error until 5 last predecessing errors
1 error code
2 operation status boiler
3 °C flow water temperature T1
4 °C return water temperature T2
5 kW load
6 % pump capacity
* Most of the data in this table can be requested by the BrainQ. Most of the adjustments which are stated
in this table are unnecessary when in combination with the ATAG BrainQ thermostat and will be taken
care of by the BrainQ itself and do not have to be adjusted. For further information regarding to the BrainQ
thermostat we refer to the ATAG BrainQ installation manual.
heating line adjustments Parameter Step 6 and 7 graph 2
outside temperature in °C
ow water temperature in °C
11.4 Activating factory settings (green key function)
To activate the factory settings again please follow the next procedure (Note: all altered
adjustments will be set back):
- Select, when necessary, the technical read out;
- Select with the MODE-key chapter PARA;
- Press the STORE-key.
The word "Copy" will appear and the facory settings are active again.
Parameter-, Info-, Service- and Error-chapters Table 6
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Installation & Servicing Instructions ATAG Q-Series
31
12 Isolating the boiler
In some situations it may be that the entire boiler must be switched off. By switching
off the three keys with the lamps for central heating, hot water and pump programme
(
, or ), the boiler is switched off. Leave the plug in the wall socket, which
means the circulation pump and the three-way valve are activated once every 24
hours in order to prevent jamming.
In the event of frost danger it is advisable to drain the boiler and/or the
installation.
13 Commissioning
Work on the boiler must be carried out by a competent person, (Ref: Gas
Safety Installation, Use and Regulations ) using correctly calibrated instruments
with current test certication.
At the time of commissioning, complete all revelant sections of the
Benchmark Checklist located on the inside back pages of the document.
To commission the boiler the casing has to be removed. The casing is locked with
a screw behind the door on the front and the top of the casing is hooked behind a
locking edge. After removing this screw the casing must be lifted at the bottom by which
means it is released from the locking edge. Then the casing can be removed forward.
The boiler settings, such as burner pressure and adjustment of the air quantity are
unnecessary, due to the fact that the boiler operates with a so-called zero pressure
control. This means the correct gas quantity is controlled by the suction operation of
the fan. The ne adjustment which is carried out at the factory is once-only, which
means that adjusting of these values is unnecessary. Only in case of replacing of the
gas valve, venturi and/or fan the zero pressure and the incorrect CO2 adjustment
has to be checked and, if necessary, adjusted at the right value.
Always check the installation of all parts through which gas ows (using
leak-search spray)
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Installation & Servicing Instructions ATAG Q-Series
32
13.1 Checking for contamination
In order to be able to check the boiler for contamination in the following years it is
advisable to measure the maximum air displacement in the boiler when putting the
boiler into operation. This value can be different with each type of boiler.
In order to be able to measure this value follow the next procedure:
- Press the MODE-key for 5 seconds.
- The diplay will show COdE followed by an arbitrary number;
- Select by means of the + or the - key the code C123;
- Press the Store-key to conrm the code (code blinks 1 x);
- Press the MODE-key until SERV is shown;
- Press the STEP-key until 2 is shown;
alternately 2 and OFF will be shown.
- Undo the top test nipple on the gas valve (g. 12);
- Connect the hose of the digital pressure gauge to the top test nipple of the gas
valve
- Press the + key until the maximum value is achieved;
The fan will function to its maximum revolutions (burner stays off)
- Measure the under pressure and write down this value.
At the next service visit this value may drop by 20% of its original value recorded
on commissioning. If this value has dropped by more than 20% the boiler requires
full maintanance.
- Press the - key until OFF is shown (keep key pressed)
With this the procedure is nished.
Test nipple gure 12
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Installation & Servicing Instructions ATAG Q-Series
33
13.2 Checking the CO2 /O
2
The CO2 /O2 percentage is factory-set. This has to be checked at
commissioning, maintance and faults.
This can be checked by means of the following procedure:
- Remove the black cover of the gas valve by unscrewing the sealed screw.
- Put the boiler into operation and take care that it can deliver its heat;
Tip: If there is no demand for heat on CH, turn the hot water tap completely open and
measure the CO2 /O2.
- Press the MODE-key for 5 seconds.
- The diplay will show COdE followed by an arbitrary number;
- Select by means of the + or the - key the code C123;
- Press the Store-key to conrm the code (code blinks 1 x);
- Press the MODE-key until SERV is shown;
- Press the STEP-key once until 1 is shown;
alternately 1 and OFF will be shown.
- Calibrate the CO2 /O2 meter ;
- Place the lance of the CO2 /O2 meter into the check point (see g. 15);
- Press the + key until the maximum value (in kW) is achieved;
The boiler will burn on full load (value on display in kW)
- CO2 percentage = 9%
O2 percentage = 4,7%
- Let the CO2 /O2 meter do its measuring procedure.
- Adjust, if necessary, the adjustment screw to correct the CO2 /O2 value
(see g. 16).
Ending the CO2 /O2 measuring procedure:
- Press the - key until OFF is shown (keep key pressed).
With this the procedure has ended..
- Replace the black cover on the gas valve and x it with the screw.
checkpoint CO2 /O2
gure 15
adjustment screw CO
2 /O2
gure 16
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Installation & Servicing Instructions ATAG Q-Series
34
13.3 Maintenance activities
To carry out the maintenance activities please follow the next procedure:
- switch off the power supply;
- remove the screw behind the door on the front of the casing (see g. 17);
- Lift the casing and remove it towards the front.
The air box
- remove the transparant air box (see g. 18);
- clean the box with a cloth with a simple (non-abrasive) cleaning agent;
The fan unit and burner cassette (see g. 19 and 20)
- remove the electrical connection plug from the gas valve (1) and fan motor (2);
- loosen the nut (3) of the gas pipe under the gas valve;
- replace the gasket with a new one;
- loosen the front cross head screw (4) of the black plastic silencer;
- after this turn the two clamping rods (9 and 10) ¼ turn and remove them by pulling
them forward. Note the correct turning direction (red indicator, g. 23);
- slightly lift the fan unit and remove it towards the front of the heat exchanger;
- remove the burner cassette out of the fan unit;
- check the burner cassette for wear, pollution and possible cracks. Clean the burner
cassette with a soft brush and vacuum cleaner.
If burners are cracked replace the complete burner cassette;
- replace the gaskets between burner and fan unit and the gasket between fan
unit and heat exchanger;
- check the venturi and the gas-air distribution plate for pollution and clean this part,
if necessary with a soft brush and vacuum cleaner. If the air box contains a lot
of dirt it is plausible that the fan itself is dirty as well. To clean this, the fan has to
be removed from the hood and the venturi. Clean the fan with a soft brush and a
vacuum cleaner. Replace the gasket and ensure that all gaskets of the fan parts
are mounted correctly.
Heat exchanger
- check the heat exchanger for contamination. Clean this if necessary with a soft
brush and a vacuum cleaner. Prevent dirt falling down into the heat exchanger.
Flushing the heat exchanger from the top down is not permitted
Retting of the components is done in reverse order.
OPEN
Opening air box gure 18
Removing casing gure 17
2
3
1
2
3
fan unit and gas valve
gure 19
figure20
10
2
3
9
4
1
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Installation & Servicing Instructions ATAG Q-Series
35
Make sure that during retting of the clamping rods, they are put into the
correct position. They should be turned vertically.
Ignition electrode
The replacement of the electrode is only necessary when the electrode is worn off.
This can be checked by measuring the ionisation current. The minimum ionisation
current has to be higher the 4µA on full load.
If the viewing glass is damaged the complete electrode must be replaced.
Replacement goes as follows:
- remove the electrical connections of the electrode;
- press the clips on both sides of the electrode to both sides and remove the complete
electrode;
- remove and replace the gasket;
Retting of the components is done in reverse order.
Siphon and condensate tray (see g. 21 and 22)
Step 1: Siphon
- rst remove the condensate cup (7);
Check this for pollution. If there is no sign of strong pollution it is not necessary to
clean the condensate tray (Go to Step 3). If there is strong pollution in the cup it
is necessary to remove and clean the condensate tray according Step 2;
- remove the inner siphon pipe (8) which remains in the condensate tray;
- check the O-rings of the cup as well as those from the pipe and replace if necessary;
- clean both parts by ushing it with clean water;
- grease the O-rings again with acid free O-ring grease to make tting easier;
- if there is a leak at the condensate cup (7) or tray (9) the complete condensate
trap unit (10) has to be replaced by S4451610;
Step 2: Condensate tray
- remove the plug from the ue gas sensor if present;
- turn the two short clamping rods (11 and 12) ¼ turn and remove them by pulling
them forward; Note the correct turning direction (red indicator, g. 22);
- lift the exhaust pipe (13) out of the condensate tray (14);
- press the condensate tray (14) carefully downwards and remove it by pulling it forward;
- replace the gasket between condensate tray and heat exchanger by a new one;
- clean the condensate tray with water and a hard brush;
- check the condensate tray on leaks.
Step 3: Retting is done in reverse order.
Note that all gaskets seals completely.
Make sure that during retting the clamping rods they are put in the right
position. They should be turned vertical.
Always replace all removed gaskets of dismanteled parts during the
maintenance activities.
Put the boiler into operation and check the CO2/O2 (see page 32).
Condensatetray figure22
Siphon figure21
11
12
13
14
7
8
9
10
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Installation & Servicing Instructions ATAG Q-Series
36
Cylinder (when applicable)
The casing of the cylinder may be cleaned with a damp cloth and a little soap. Do not
use any abrasive or solvent material which could damage the case or ttings.
The following maintenance work has to be carried out by the competent installer.
- Inspection of pressure/temperature relief valve and expansion relief valve.
Manually operate each valve by twisting the operating cap, and check if water ows
unobstructed via the tundish to the discharge point. ensure that both valves re-seat
satisfactorily.
- Check pressure of expansion vessel.
Turn off mains water supply and open nearest hot water tap to depressurise the
secondary water system.
Check the expansion vessel charge pressure gauge at the test point. If the pressure
is below 3.0 bar, top up with suitable air pressure pump.
- Complete service section of cylinder commissioning checklist.
In the event that parts require replacement, use only genuine parts supplied
by ATAG Heating UK Ltd.
Please contact your installer or ATAG Heating UK Ltd. for further details. Contact
details can be found on the back page of this manual.
After servicing, complete the relevant Service Interval Record section of the
Benchmark Checklist located on the inside back page of the document.
13.4 Draining the installation
During servicing one of the following items has to be drained:
Central heating system - boiler
The central heating system and boiler can be drained using the ll- and drain
valve installed in the system. If service valves are installed (advised) the boiler
can be drained seperately from the rest of the installation via the drain valves on
the service valves.
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Installation & Servicing Instructions ATAG Q-Series
37
13.5 User's instructions
Hand these instructions and the user manual to the user for retention and instruct in
the safe operation of the boiler and cylinder. Advise the user of the operation of the
cylinder temperature, and that normally a setting of max. which gives a stored water
temperature of approximately 60°C is adequate.
In hard water areas the DHW temperature setting should not exceed this
setting to avoid possible scale build-up.
Frost protection
Advise the user of the precautions necessary to prevent damage to the system and
to the building if the system does not remain operative during frost conditions.
Please ensure that if you are absent during a period of frost the central heating system
remains in operation and the rooms and CBS cylinder are kept above freezing point.
Finally, advise the user that for continued efcient and safe operation, the boiler and
cylinder should be serviced at least once a year by qualied servicing company. It is
important and strongly recommended that arrangements are made for a maintenance
agreement with a qualied servicing company to ensure regular servicing of the boiler
and cylinder.
Please contact ATAG Heating UK Ltd. for further details. Contact details can be found
on the back page of this manual.
13.6 Maintenance frequency
ATAG Heating UK Ltd advises an annual inspection, with a full strip down service
every 4 years, depending on the operational hours listed in the warranty conditions.
13.7 Warranty
For the warranty conditions we refer to the Warranty Card that is supplied with the
boiler.
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Installation & Servicing Instructions ATAG Q-Series
38
15 Technical specications
Technical specications Table 7
Boiler type Q25C Q38C Q51C Q25S Q38S Q51S Q60S
Input Hs CH kW 25 38 51 25 38 51 60
Q
n
Input Hi CH
kW 22,5 34,2 45,9 22,5 34,2 45,9 54
Q
nw
Input Hi DHW
31,5
Efficiency class according BED
Efficiency according EN677
(36/30°C part load, Hi)
% 109,7 109,1 109,3 109,7 109,1 109,3 109,3
Efficiency according EN677
(80/60°C full load, Hi)
% 97,5 97,4 97,3 97,5 97,4 97,3 97,3
Modulation range CH
(capacity 80/60°C)
kW 6.0 - 21.9 6.0 - 33.3 8.8 - 44.7 4.4 - 21.9 6.0 - 33.3 8.8 - 44.7 8.8 -52.5
Modulation range CH
(capacity 50/30°C)
kW 6.8 - 23.9 6.8 - 36.3 9.8 - 48.7 4.9 - 23.9 6.8 - 36.3 9.8 - 48.7 9.8 - 57.3
Nox class EN483
CO
2
%
Flue gas temp. CH
(80/60°C on full load)
°C 68 69 70 68 69 70 70
Flue gas temp. CH
(50/30°C on low load)
°C
Gas consumption G20 CH (DHW)
(at 1013 mbar/15°C)
m
3
/h
2,38
(3,33)
3,62 4,86 2,38 3,62 4,86 5,71
Electr. power consumption max. W 106 165 150 106 165 150 168
Electr. power consumption stand by W
Current V/Hz
Fuse rating A
Degree of protection acc. EN 60529
Weight (empty) kg 79 79 89 50 53 64 64
Width mm 840 840 1000 500 500 660 660
Height mm
Depth mm
Water content CH l 5 5 7 3,5 5 7 7
Water content DHW l 14 14 14
After run time pump CH min
After run time pump DHW min 1 1 1
P
MS
Water pressure min./max.
bar
P
MW
Water pressure DHW max.
bar
Flow temperature max. °C
Pump type UPER 20-60 20-70 20-70 20-60 20-70 20-70 20-70
Available pump height CH kPa 29 20 32 22
Label
DHW flow (at 38°C) l/min 13,4 16,6 23,2
DHW flow (at 60°C) l/min 7,5 9,3 13
DHW temperature (T
in
=10°C)
°C 60 60 60
CE product identification number(PIN)
5
1/3
ATAG Q-Serie
9
31
5
385
5
8
0063BQ3021
Combi Solo
Sedbuk A rate
10
230/50
IPX0D
680
85
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Installation & Servicing Instructions ATAG Q-Series
39
1 heat exchanger
2 ignition unit
3 fan unit
4 air inlet damper
5 gas valve
6 safety valve
7 automatic air vent
8 ceramic burner cassette
9 cylinder DHW (Combi)
10 operating panel
11 Control Tower (CMS)
12 water lter return CH
13 three-way valve
14 circulation pump
15 thermostatic mixing valve
16 ue gas discharge
T1 ow sensor
T2 return sensor
T3 cylinder sensor DHW (combi)
P1 water pressure sensor
ATAG Q gure 15
4 2 1 3 175 16 7 6 918
C E
13 14 15
W
G
19 10
8
11
KRA
17 combustion air supply
18 air box
19 type plate
G gas pipe
A ow connection central heating
R return connection central heating
C condensate pipe
E expansion vessel pipe (Q51C)
16 Parts of the boiler
K cold water pipe (combi)
W hot water pipe (combi)
12
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Installation & Servicing Instructions ATAG Q-Series
40
installation example gure 16
A Boiler:
A0 Connection terminal ATAG Q
A1 ATAG BrainQ thermostat RSC
A4 Outside sensor ARV12
tra Thermostatic radiator valve
BP Automatic by-pass
Use alway a by pass in combination with thermostatic radiator valves.
17 Installation examples
BP
17.1 Radiator installation without thermostatic radiator valves
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Installation & Servicing Instructions ATAG Q-Series
41
installation example gure 17
17.2 Radiator installation with underoor heating zone
A Boiler:
A0 Connection terminal ATAG Q
A4 Outside sensor ARV12
A9 ATAG MadQ zone coltroller 23BC
A10 Connection terminal MadQ built in
B Cylinder:
B3 Cylinder sensor
B5 Three-way valve cylinder
C Direct zone:
C6 Pump direct zone
D Mixing zone:
D2 Flow sensor mixing zone
D5 Three way valve mixing zone 230V~
D6 Pump mixing zone
See also the installation manual ATAG MadQ Zone controller.
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Installation & Servicing Instructions ATAG Q-Series
42
18 Error indication
A detected error is indicated on the display by means of blocking or error messages.
A distinction should be made between these two messages due to the fact that blocking can be of a temporary nature, however, error messages are xed lockings. The
control will try its utmost to prevent locking and will temporarily switch off the unit by
blocking it. Hereunder is a list of some messages.
Blocks with a number in the last 2 positions.
Block 01:
External safety contact cut off
Block 11:
Maximum T of ow and return sensor in central heating has repeatedly been exceeded. Du-
ring the block normal operation of the hot water supply is possible. The pump continues to operate
at minimum capacity during the block.
Block 12:
Maximum T of ow and return sensor in domestic hot water has repeatedly been exceeded.
During the block normal operation of the central heating installation is possible. During the block the
pump continues to operate at minimum capacity.
Block 60:
Incorrect parameter setting of the minimum or maximum power.
Block 67:
A T has been detected between ow and return sensor whereas the burner is not in operation.
After the T has disappeared the block will disappear.
Block 80:
Maximum ue gas temperature has been exceeded (if present). The block will not be cancelled
until the ue gas temperature has arrived below the temperature.
Block 81:
The ue gas sensor is not connected although it was connected to the control. The burner is
blocked until the ue gas sensor is reconnected.
Block 82:
The ue gas sensor has short-circuited, heat requirement blocked and pump capacity at mini-
mum.
Block 85:
The control has not detected a water ow. The venting cycle is started. If during this cycle water
ow is detected, the venting cycle is ended and the burner is released.
Error with a number in the last two positions.
Error 00: Poor ame-forming
Error 01: short-circuit of 24 volt circuit
Error 02: no ame-forming
Error 04: adjustment or error for voltage interruption
Error 05: adjustment
Error 12: fuse 24 volt/3AT faulty
Error 18: maximum ow temperature exceeded
Error 19: maximum return temperature exceeded
Error 28: number of revolutions not reported back from fan
Error 69: no or incorrect display
Error 80: maximum ue gas sensor temperature exceeded
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Installation & Servicing Instructions ATAG Q-Series
43
19 CE Declaration of conformity
CE DECLARATION OF CONFORMITY
Hereby declares ATAG Verwarming Nederland BV that,
the condensing boiler types: ATAG
Q25S Q25C
Q38S Q38C
Q51S Q51C
Q60S
are in conformity with the provisions of the following EC Directives, including all amendments,
and with national legislation implementing these directives:
Directive Used standards
Gas Appliance Directive 2009/142/EC EN483: 1999,A2 ;2001 (ex.90/396/EEG) C1 ;2006,A4 ;2007
EN50165: 1997
Efciency Directive 92/42/EEC EN677: 1998
Low Voltage Directive 2006/95/EG EN50165: 1997
EN60335-1: 1994
EMC Directive 2004/108//EG EN61000-3-2: 2000,A1 ;2001,A2 ;2005
EN61000-3-3: 1995,2006
EN55014-1: 1993;A1;2001,A2;2002
EN50165: 1997,A1;2001
EN55014-2: 1997,A1;2001
Report numbers
GAD ED LVD EMC D
ATAG Q 177021 177021 177021 178195-EMC
and that the products are in conformity with EC type-examination certicate number E0430,
as stated by KIWA-Gastec Certication BV, Apeldoorn, The Netherlands.
Date :2-11-2010
Signature :
Full name : C. Berlo
CEO
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Installation & Servicing Instructions ATAG Q-Series
44
20 Kiwa certicate
Page 45
Installation & Servicing Instructions ATAG Q-Series
45
Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty. This
does not affect the customer’s statutory rights.
If yes, and if required by the manufacturer, has a water scale reducer been fitted?
Condensing Boilers only
The condensate drain has been installed in accordance with the manufacturer’s instructions and/or BS5546/BS6798 Yes
If the condensate pipe terminates externally has the pipe diameter been increased and weatherproof insulation fitted? Yes
Page 46
Installation & Servicing Instructions ATAG Q-Series
46
Service Record
It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.
Service Provider
Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the
manufacturer’s instructions.
Always use the manufacturer’s specified spare part when replacing controls.
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Operative ID No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Date:
Engineer Name:
Company Name:
Telephone No.
Gas Safe Register No.
Comments:
Signature:
Service 1 Service 2
Service 3 Service 4
Service 5 Service 6
Service 7 Service 8
Service 9 Service 10
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Installation & Servicing Instructions ATAG Q-Series
47
Page 48
This renewed publication cancels all previous installation instructions. The company reserves the right to change the specications and dimensions without prior notice.
ATA G H e at in g U K L t d. • U n it 3 • Be a v er T r ad e P ar k • Qu a rr y L an e C h i ch es te r We s t Su s se x PO 1 9 8 N Y
Phone: 0 1 2 4 3 8 1 5 7 7 0 • F a x 0 1 2 4 3 839 5 9 6 • E - m a i l : info@ata g h e a t i n g . c o . u k • Internet: w w w.atagheatin g . c o . u k
E. & O. E.
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