2
Concord ES
- Installation and Servicing
GENERAL
Boiler
ES 140/H ES 160/H ES 180/H ES 200/H ES 220/H ES 260/H ES 300/H ES 340/H ES 380/H
Number of Sections
8
9
10
11
12
14
16
18
20
Boiler Output
2nd stage kW 119-140 136-160 153-180 170-200 187-220 221-260 255-300 289-340 323-380
1st stage kW
83-98
95-112 107-126 119-140 131-154 155-182 179-210 202-238 226-266
Boiler Input
2nd stage kW
131,1-153 149,7-174,7 168,2-196,3 186,7-217,9 205,2-239,4 242,2-282,6 278,8-325,4 315,7-368,4 352,4-411,3
(Nett CV)
1st stage kW
93,1-108,9 106,3-124,3 119,4-139,7 132,5-155 145,6-170,4 171,9-201,1 197,9-231,5 224-262,1 250,1-295,6
Gas
2nd stage m
3
/h
13,88-16,1915,84-18,48 17,80-20,77 19,76-23,05 21,71-25,33 25,63-29,91 29,51-34,43 33,40-38,98 37,29-43,52
flow rate
1st stage m
3
/h
9,85-11,52 11,24-13,15 12,63-14,78 14,02-16,41 15,41-18,03 18,19-21,28 20,94-24,50 23,71-27,74 26,47-30,97
Burner pressure
2nd stage mbar
8.8 - 11.8
1st stage mbar
1st stage pressure = 0.5 x adjusted 2nd stage pressure
Approx. flue gas volume
m
3
/sec
0.115
0.123
0.148
0.163
0.171
0.209
0.228
0.247
0.304
Flue Gas Temperature
ºC
125
133
123
125
130
126
133
140
126
CO
2
%
6.4
7
6.3
6.4
6.8
6.5
7
7.5
6.5
Table 1 - Performance Data
Boiler
ES 140/H ES 160/H ES 180/H ES 200/H ES 220/H ES 260/H ES 300/H ES 340/H ES 380/H
Main burner injector
m m
3, 9
Ignition burner injector
m m
0,8
Maximum flow temperature
ºC
90
Maximum operating pressure
bar
6
Electrical connection
V / Hz
230 / 50
Maximum electrical power
W
450
Gas connection
(inch BSP)
1"
1"
1"
1"
1"
1"
1
/
4
1"
1
/
4
1"
1
/
4
1"
1
/
2
Flow & return connections
(inch BSP)
2"
Flue outlet diameter
m m
250
250
300
300
300
350
350
350
400
Water content
litre
61
68
76
84
91
106
122
137
154
Water circuit
at T = 11 K mbar
66
87
110
136
164
229
305
392
489
resistance
at T = 20 K mbar
20
26
33
41
50
69
92
118
148
Dry weight
kg
667.5
730.25
807
879.5
934
1096
1226.75 1363.5
1475.5
Table 2 - General Data
Note: The above tables show both 85% and 100% full output figures. The output is adjustable.
Concord ES -
Installation and Servicing
3
CONTENTS
Air Supply. ........................................................................ 8
Boiler Clearances. ......................................................... 11
Boiler Dimensions. .......................................................... 5
Boiler Operation - Controls. .......................................... 10
Casing Assembly. .......................................................... 22
Chimney System. ............................................................. 8
Commissioning & Testing. ............................................ 31
Control Panel Description. ............................................ 28
Data Tables. ..................................................................... 2
Electrical Connections. ................................................. 27
Electrical Supply. ............................................................. 8
Gas Safety Regulations ................................................... 3
Gas Supply. ....................................................................... 8
Hydraulic Resistance. ..................................................... 4
Initial Lighting. ................................................................ 31
Installation. ..................................................................... 12
Mandatory Requirements. .............................................. 7
Option Kits. ....................................................................... 4
Pack Lists. ..................................................................... 12
Pump. ............................................................................... 4
Servicing. ....................................................................... 33
Static Head Requirements. ............................................. 6
Ventilation. ....................................................................... 8
Water Circulation. ........................................................... 4
Water Connections. ........................................................ 4
Water Treatment. ............................................................ 6
Wiring Diagrams. .......................................................... 30
INTRODUCTION
CONSTRUCTION
Concord ES boilers are
sectional cast iron boilers,
with an atmospheric two-
stage gas burner and
electronic ignition via an
ignition burner. The heat
output is adjustable to 85% of
full output. The combustion
chamber and draught diverter
are sheet steel. They are
designed for use with a hot
water central heating system,
and have a heat output range
of: 119 - 380 kW
They must be connected to a chimney. The heat exchanger can
be supplied, assembled, or unassembled for site assembly.
They are suitable for natural gas only.
CERTIFICATION
EC:
The Concord ES boilers meet the requirements of the following
European directives and are tested according to EN 656:
-
90.396 EEC Gas Appliances Directive
-
92.42 EEC Boiler Efficiency Directive
-
73.23 EEC Low Voltage Directive
Relevant standard: EN 60.335.1
-
89.336 EC Electromagnetic Compatibility Directive Relevant
standards: EN 50.081.1 / EN 50.082.1 / EN 55.014.
The boilers are of the B11 type
EC No: CE 0085 BL 0187 (Concord ES)
Gas Safety (Installation and Use) Regulations or rules in
force.
It is the law that all gas appliances are installed and serviced by
a CORGI registered installer in accordance with the above
regulations. Failure to install appliances correctly could lead to
prosecution. It is in your own interest, and that of safety, to
ensure that the law is complied with.
Note. Concord ES boilers are intended for use as
COMMERCIAL BOILERS and are NOT certified for use in
domestic applications. A domestic installation is defined as an
installation where the boiler takes its combustion air from a
living space or from a room directly or indirectly connected with
the living space. It is important, therefore, that no external control
devices - e.g. flue dampers, economisers etc., are directly
connected to this appliance unless covered by these Installation
and Servicing Instructions or otherwise recommended by
Caradon Ideal Limited in writing. If in doubt, please enquire.
Any direct connection of a control device not approved by
Caradon Ideal Limited could invalidate the Certification, the
normal appliance warranty and could also infringe the Gas
Safety Regulations. Table 1 and 2 and the descriptive notes
which follow contain all the essential data likely to be required by
the installer.
CAUTION.
To avoid the possibility of injury during the installation, servicing or cleaning of
this appliance care should be taken when handling edges of sheet steel components.
4
Concord ES
- Installation and Servicing
GENERAL
Safety Valve
A safety valve must be sized and fitted in accordance with BS.
6644 for every type of system. The valve should be set at 0.7
bar (10 lb/in.
2
) above the operating pressure in the boiler.
The maximum safety valve setting is 0.7 bar (10 lb/in.
2
) above
the maximum design operating pressure of 6 bar (87 lb/in.
2
).
Cold Feed/Open Vent
The independent cold feed and the open vent must comply
with BS. 6644 and be of the following minimum size.
1
WATER CONNECTIONS
GAS CONTROLS
Control is by automatic ignition of intermittent pilot; once the
presence of a flame has been proved the main gas valve opens
to give heat input according to thermostat settings. The mains
voltage supply is via a terminal strip connection at the control
box.
ELECTRICAL CONTROLS
The boiler is supplied with a control box providing full logic and
sequence control. A separate ignition transformer is fitted.
Details of the control panel are given in Frame 40.
FROST PROTECTION
If frost is likely, leave the boiler thermostat at a reduced
temperature setting and do not turn off the gas cock. Ensure
external controls allow the boiler to operate if necessary. Note
that this may not protect remote parts of the system, in which
case a separate frost thermostat should be fitted or the system
drained and the boiler shut down, as for Long Periods.
OPTION KITS
Hours run meter kit (IC8)
One or two hours run meters to measure 1st and 2nd stage
operation.
Flue gas thermometer kit (ID28)
Provides measurement of flue gas temperature.
DUTY
The range of boilers is suitable for: Combined indirect pumped
domestic hot water and central heating systems; Independent
indirect pumped domestic hot water or central heating systems.
Fully pumped systems may be open vented or sealed.
The range of boilers is NOT suitable for:
1. Gravity DHW systems.
2. Gravity heating systems.
3. Direct domestic hot water supply.
WATER CIRCULATION SYSTEM
Due to the compact nature of the boiler the heat stored within the
castings at the point of shutdown of the burner must be
dissipated into the water circuit in order to avoid the overheat
thermostat tripping. The system controls must allow a pump
overrun period, after burner shutdown, of 3 minutes.
1. The minimum flow rate given by:
min flow rate = 0.86.P m
3
/hour
45
where P = max. heat output of boiler (kW)
must be maintained whenever the boiler is firing and during
the pump overrun period.
2. During the period of pump overrun there must be an open
circuit of adequate water volume and/or load.
3. Pump selection should take account of the hydraulic
resistance given in the Data Tables on page 2.
PUMP POSITIONS
Whenever practically possible the circulating pump(s) should be
positioned so that it pressurises the system being served. The
vertical distance between the pump(s) and any cold feed and
expansion cistern MUST comply with the pump manufacturers
requirements in order to avoid cavitation. These requirements
override the information given in Frame 3 if the static head
required for the pump(s) exceeds that required for the boiler.
0
1
/
CON5252
G Drain (tapped 3/4")
H 2" threaded flow connection
I
2" threaded return connection
System connections H and I must be on the same side (either
on the right or on the left but never to opposite sides).
Note
The connections may be welded.
Boiler Size
Cold Feed
Open Vent
61 - 150
1"
1
1/4
"
151 - 300
1
1/4
"
1
1/2
"
301 - 600
1
1/2
"
2"
Concord ES -
Installation and Servicing
5
GENERAL
2
DIMENSIONS
Table 3
B
Hydraulic connections must be made on one side only (either on the right or on the left side), but never on opposite sides.
The connections may be welded.
Gas inlet connection F may be made either from the right or the left side of the boiler.
LOW TEMPERATURE OPERATION
The flow temperature from the Concord ES boiler can be reduced to a minimum of 40ºC dependent on the heat load requirement of
the system. This is permissible in those situations where low modulated temperature operation is achieved using weather
compensation. It is NOT permissible to design the system to run the boiler constantly at 40ºC flow. The return temperature must
not be less than 35ºC.
Boiler Size
ES 140/H
ES 160/H
ES 180/H
ES 200/H
ES 220/H
ES 260/H
ES 300/H
ES 340/H
ES 380/H
No. of sections
8
9
10
11
12
14
16
18
20
Dimension A
1362
1362
1362
1362
1362
1412
1412
1412
1462
Dimension B
970
1058
1146
1234
1322
1498
1674
1850
2026
Dimension øC
250
250
300
300
300
350
350
350
400
Dimension D
632
720
808
896
984
1160
1336
1512
1688
Dimension E
165
165
165
165
165
190
190
190
220
Dimension øF
Rp 1
Rp 1
Rp 1
Rp 1
Rp 1
Rp 1
1
/
4
Rp 1
1
/
4
Rp 1
1
/
4
Rp 1
1
/
2
Dimension G
447
491
535
579
623
704
792
880
963
Dimension H
445
445
445
445
445
454
454
454
507
Dimension J
1094
1094
1094
1094
1094
1194
1194
1194
1194
Dimension K
1406
1406
1406
1406
1406
1406
1406
1406
1406
6
Concord ES
- Installation and Servicing
GENERAL
Particular reference should be made to BS. 6644: Section 2;
Subsection 10 and Guidance note PM5 "Automatically
controlled steam and hot water boilers" published by the
Health and Safety Executive.
The information and guidance given below is not intended to
override any requirements of either of the above publications
or the requirements of the local authority, gas or water
undertakings.
Other British Standards applicable are BS.5422 and BS.6700.
The information provided is based on the following
assumptions:
1. An independent open vent/safety pipe connection is made
to the redundant boiler flow tapping or is positioned
immediately after the system flow pipe connection to the
header, as shown.
Note A. This minimum height must be
increased, if necessary, to comply with the
minimum head required by the pump
manufacturer in order to avoid cavitation.
Note B. This diagram does not show safety
valves, water flow switches, etc., necessary for
the safe operation of the system.
3 OPEN VENTED SYSTEMS - Minimum static head requirements
2. An independent cold feed/expansion pipe connection is
made to the redundant boiler return tapping. Cold feed/
expansion pipe connections made to the pumped system
return will result in an increase in the static head
requirement, caused by the additional resistance of the
distributor tube. Surging may also increase.
3. The normal design flow rate through the boiler is based on a
temperature difference of 11 °C at full boiler output and the
circulating pump is positioned in the flow to the system.
4. The boiler is at the highest point of circulation in the system.
Systems designed to rise above the boiler flow tappings will
automatically require a minimum static head higher than that
shown.
5. The position of the open vent/safety pipe above the
expansion cistern water level is given as a guide only. The
final position will depend upon the particular characteristics
of the system. Pumping over of water into the expansion
cistern must be avoided.
WATER TREATMENT FOR HOT WATER AND
HEATING BOILERS
There is a basic need to treat the water contained in all heating
and indirect water systems, particularly open vented systems. It is
assumed, incorrectly, that because boilers are operating in
conjunction with what is apparently a closed circuit an open vented
system will not, under normal circumstances, allow damage or
loss of efficiency due to hardness salts and corrosion once the
initial charge of water has been heated up a few times.
1mm of lime reduces the heat transfer from metal to water by 10%.
In practice the deposition of these salts is liable to cause noises
from the boiler body or even premature boiler failure. Corrosion
and the formation of black iron oxide sludge will ultimately result
in premature radiator failure.
Open vented systems are not completely sealed from the
atmosphere if proper venting and expansion of system water is
to be achieved. The same tank is used to fill the system with
water and it is through the cold feed pipe that system water
expands into the tank when the boiler passes heat into the
system. Conversely, when the system cools, water previously
expelled is drawn back from the tank into the system together
with a quantity of dissolved oxygen.
Concord ES -
Installation and Servicing
7
GENERAL
Even if leakage from the heating and hot water system is eliminated
there will be evaporation losses from the surface of the tank which,
depending upon ambient temperature, may be high enough to
evaporate a large portion of the system water capacity over a full
heating season.
There will always be corrosion within a heating or hot water system
to a greater or lesser degree, irrespective of water characteristics,
unless the initial fill water from the mains is treated. Even the
water in closed systems will promote corrosion unless treated.
For the reason stated, Caradon Ideal Limited strongly recommend
that, when necessary, the system is thoroughly cleaned, prior to
the use of stable inhibitor, which does not require continual topping
up to combat the effects of hardness salts and corrosion on the
heat exchangers of the boiler and associated systems.
Caradon Ideal Limited advise contact directly with specialists on
water treatment such as:
Fernox Manufacturing Co. Ltd., or
Tandem House,
Marlowe Way,
Croydon.
Surrey CRO 4XS
Tel 0870 601 5000
INSTALLATION REQUIREMENTS
The appliance must be installed by a CORGI registered installer.
The installation of the boiler must be in accordance with the relevant
requirements of the Gas Safety Regulations, current I.E.E.
(BS.7671) Regulations, Model Water Bye-laws, local water authority
bye-laws and it should also comply with any relevant requirements
of the local gas region, local authority and the relevant British
Standard Codes of practice and building regulations.
Pressure vessels used must comply with BS. 4814 and must
be sized on the basis of the total system volume and initial
charge pressure.
Initial minimum charge pressure should not be less than 0.3
bar (7.2 psi) and must take account of static head and
specification of the pressurising equipment. The maximum
water temperatures permissible at the point of minimum
pressure in the system are specified in Guidance Note PM5.
When make-up water is not provided automatically it will be
necessary to fit controls which shut down the plant in the event
of the maximum system pressure approaching to within 0.35
bar (5 psi) of safety valve setting.
Other British Standards applicable to commercial sealed
systems are:-
BS. 6880: Part 2.
BS. 1212
BS. 6281: Part 1
BS. 6282: Part 1
BS. 6283: Part 4
Working pressure 6 bar maximum.
Particular reference should be made to BS. 6644: Section 6
and Guidance note PM5 "Automatically controlled steam and
hot water boilers" published by the Health and Safety
Executive.
The information and guidance given below is not intended to
override any requirements of either of the above publications or
the requirements of the local authority, gas or water
undertakings.
In general commercial closed pressurised systems are
provided with either manual or automatic water make up.
On both instances it will be necessary to fit automatic controls
intended to protect the boiler, circulating system and ancillary
equipment by shutting down the boiler plant if a potentially
hazardous situation should arise.
Examples of such situations are low water level and operating
pressure or excessive pressure within the system. Depending
on circumstances, controls will need to be either manual or
automatic reset. In the event of shutdown both visual and
audible alarms may be necessary.
4
SEALED (PRESSURISED) SYSTEMS
Sentinel Division
Betz Dearborn Ltd.,
Widnes,
Cheshire, WA8 8UD
Tel. 0151 424 5351.
FOR SMALL PIPE INSTALLATIONS
BS. 6891;
Installation of low pressure pipework
FOR LARGE PIPE INSTALLATIONS
Gas Installations
IGE-UP-1:
Purging Procedures of Non-domestic Gas
Installations. Soundness Testing Procedures
for Industrial and Commercial.
IGE-UP-2:
Guidance notes on the Installation of Gas
Pipework, Boosters and Compressors in
Customer's Premises Equal to or Greater than
25mm (Non-domestic).
IGE-UP/10:
Installation of Gas Appliances in Industrial and
Commercial Premises.
BS.6644:
Installation of Gas Fired Hot Water Boilers
70kW to 1.8MW (net).
BS 6880 Pt 1-3: Water Supply.
CP342:2:
Centralised Hot Water Supply.
Model Water Bye-laws
Manufacturers notes must not be taken, in any way, as overriding
statutory obligations.
FOUNDATION
The boiler must stand on a non-combustible floor (i.e. concrete
or brick) which must be flat, level and of a suitable load bearing
capacity to support the weight of the boiler (when filled with
water) and any ancillary equipment.
If the boiler is mounted on a plinth then the dimensions must
exceed the plan area of the boiler by at least 75mm on each
side.
8
Concord ES
- Installation and Servicing
GENERAL
Position ventilation grilles to avoid the risk of accidental
obstruction by blockage or flooding. If further guidance on
ventilation is required then consult BS.6644 and BS.5440:2.:
2000.
AIR SUPPLY BY MECHANICAL VENTILATION
The supply of air by mechanical means to a space housing the
boiler should be by mechanical inlet with natural or mechanical
extraction. Mechanical extract ventilation with natural inlet must
NOT be used.
Where a mechanical inlet and a mechanical extract system is
applied, the design ventilation flow rates should be as in Table 4
of BS.6644.
The requirements for air supply by mechanical ventilation are
given in BS.6644.
Note. For mechanical ventilation systems an automatic control
should be provided to cause safety shutdown or lockout of the
boiler(s) in the event of failure of air flow in either inlet or extract
fans.
IMPORTANT. The use of an extractor fan in the same room as
the boiler (or in an adjacent, communicating room) can, in
certain conditions, adversely affect the safe operation of the
boiler. Where such a fan is already fitted (or if it is intended to fit
an extractor fan after installation of the appliance) the advice of
the Gas Region should be obtained.
Tests for spillage of products from the draught diverter when the
extractor fan is running and all doors and windows are shut
should be carried out after installation. If spillage is detected,
the area of permanent ventilation must be increased.
CHIMNEY SYSTEM
To ensure the safe and satisfactory operation of the boiler the
chimney system (which may be common or individual, in the
case of twin or multiple boiler installations) must be capable of
the complete evacuation of combustion products at all times.
The effective height of the chimney terminal(s) above the boiler
outlet(s) must ensure sufficient buoyancy to overcome the
resistance of the bends, tees and runs of the flue pipe involved
and shall terminate in a down draught free zone. The number of
bends and lengths of horizontal flue pipe used should be kept to
a minimum in order to reduce gas flow resistance.
Compliance with the recommendations made in BS.6644,
IGE UP/10 Installation of Gas Appliances in Industrial and
Commercial Premises and the' Third Edition of the 1956 Clean
Air Act Memorandum' should be strictly observed where
applicable.
The chimney design should avoid the formation of excessive
quantities of condensate. For this reason it is recommended
that all chimneys are insulated and lined. In the case of brick or
similar structures a stainless steel rigid or flexible flue liner
(grade 304/316) may be used in conjunction with a 50 mm
(minimum) thick layer of vemiculite or perlite granules between
the liner and the inner skin of the chimney body. Liners should
be sealed at both top and bottom.
As the Concord ES range of boilers is supplied complete with
an integral draught diverter, a diverter MUST NOT be fitted within
the chimney system.
Drainage points positioned at the bottom of all vertical chimney
sections should be provided. Drain pipes should be no less
than 25 mm I.D., manufactured from acid condensate resistant
material such as stainless steel and be positioned so that pipe
runs and discharge points are not subject to the effects of frost
and that flue gases cannot leak into the boiler room.
Care should be taken to ensure the specification of the chimney
is suitable for the application by reference to the manufacturers
literature. Caradon Ideal Limited can offer advice on the design
of suitable chimney systems.
GAS SUPPLY
A minimum of 17.5 mbar (7 in w.g.) dynamic gas pressure must
be available for boiler operation.
If there is any doubt regarding the capacity of the gas meter, the
available gas pressure, the adequacy of existing service pipes
or the size required for new service pipes then the advice of the
gas region should be requested.
Installation pipework should be fitted and tested for gas
soundness in accordance with BS. 6891;
IGE-UP-1 for small installations.
IGE-UP-2 for large installations.
The local gas region must be consulted if it is necessary to
employ a gas pressure booster.
ELECTRICAL SUPPLY
WARNING. This appliance must be efficiently earthed.
A 230 V - 50 Hz mains supply is required, fused at 5 amps.
Wiring external to the appliance MUST be in accordance with the
I.E.E. (BS. 7671) Wiring Regulations and any local regulations
which apply.
For details of connections refer to Frame 39.
VENTILATION
Safe, efficient and trouble-free operation of open flued gas
boilers is vitally dependent on the provision of an adequate
supply of fresh air to the room in which the appliance is
installed. Ventilation by grilles communicating to the outside air
is required. The minimum free area and required positioning of
these grilles must be in accordance with Table 6.
Required area (cm
2
) per kW of total rated input (net)
Boiler room
Enclosure
Low level (inlet)
4
10
High level (outlet)
2
5
Note: Where a boiler installation is to operate in summer
months (e.g. DHW) additional ventilation requirements
are stated, if operating for more than 50% of time (refer
to BS6644).
Concord ES -
Installation and Servicing
9
GENERAL
5
CONCORD ES
2
7
8
5
10 6 9
3
1
4
CON5255
1. Control panel: refer to Frames 39 and 40 for description,
operation and electrical connections.
2. Safety control box: this box performs and monitors the
burner ignition, operation and switch-off sequences.
- Type DUNGS DGAI 73 Mod. 10.1.0 TCL-G (see the
operating cycle in Frame 6).
3. Multiblock gas valve comprising a safety valve and a main
2-stage valve with a filter and a minimum pressure
sensitive switch.
4. Ignition valve
5. Ignition burner: it is used to ignite the main burner. An
ignition electrode and an ionisation probe are fitted to the
ignition burner.
6. Ignition burner sighthole.
7. Ignition burner ionisation probe: checks whether the flame
of the ignition burner is on.
8. Ignition electrode
9. Minimum gas pressure switch (min. pressure 12,5 mbar)
10. Ignition transformer
10
Concord ES
- Installation and Servicing
GENERAL
6
OPERATION OF THE BOILER FITTED WITH THE DGAI 73 MOD. 10.1.0 TCL-G
SAFETY CONTROL BOX
OPERATING PRINCIPLE
The boiler can operate either in the 2nd or in the 1st stage,
depending upon the heat requirements of the installation.
The burner ignition and monitoring cycle is performed by the
safety control box.
When heating is required, the boiler thermostat TCH1 closes
the contact. After a time delay tw, the ignition transformer TA
produces a number of sparks at the ignition electrode and,
after a pre-ignition delay tvz, the ignition burner valve VG and
the safety valve VS open.
A flame appears at the ignition burner and the ionisation probe
SF detects a flame signal with a minimum ionisation current of
1
µA. After the ionisation current has stabilised, the main
burner 1st stage BR1 (or 2nd stage BR1 + BR2 if the 2nd stage
thermostat TCH2 requires heating) starts.
BEHAVIOUR IN ABNORMAL CONDITIONS
-
If the flame is not detected before the end of safety time ts,
the safety control box goes to lockout and the red indicator
on the control panel lights up and remains on until it is
reset manually.
-
If the flame is lost during normal operation, the safety
control box automatically repeats the start-up sequence. If
the flame is not re-established then, the control box will
lockout.
RESETTING
If at lockout, the safety control box is reset by pressing the reset
button. If the first resetting does not give the expected result,
wait for at least 15 seconds before resetting once again.
Note 1
When it is started up for the first time, the safety control box
may be in safety position: press the reset button to release it.
Note 2
If the resetting button is pressed during normal operation, the
gas valves close and the safety control box starts up a new
sequence.
A
B
VG
SF
tw
ts
TCH1
BR 2
VA
BR 1
TCH2
TA
tvz
A
: Beginning of start-up operation
B
: Flame established at the ignition burner and
start-up of the main burner
BR1
: 1st stage
BR2
: 2nd stage
D
: Safety device goes to lockout because
there is no flame signal
SF
: Ignition burner flame signal
TA
: Ignition transformer
TCH1 : 1st stage boiler thermostat
TCH2 : 2nd stage boiler thermostat
ts
: Safety time, max. 10 seconds
tvz
: Pre-ignition time (10 s.)
tw
: Waiting time (5 s.)
VA
: Alarm and safety control box lockout
indicator
VG
: Ignition valve + safety valve VS
- Normal operating cycle
t s
A
D
VG
SF
TCH1
BR 2
VA
BR 1
TCH2
TA
Safety box output signals
Required control signal
2nd stage operation
Call for 2nd stage heating
tw
tvz
Operating cycle (switching the safety control box
off while starting to check absence of flame signal)
CON5256
Concord ES -
Installation and Servicing
11
GENERAL
500
1006
100
0
400*
200
2200
min
.
1406
A
a =
500
1600
b=1600
CON5257
The combustion air
must reach the burner
from the front
7
BOILER CLEARANCES AND INSTALLATION
The figures indicate the minimum recommended
dimensions for providing easy access around the boiler.
Boiler dimensions are given in mm.
* Clearance for water connections side is 400mm.
This may be either right or left hand side.
For unassembled boiler bodies leave clearance
equal to dimensions a and b for assembly tools
(simplified JD tools for boilers with 8 to 14 sections or
JD-TE tools for boilers with 8 to 20 sections or JD-TE
Plus tools for any other model). Note: not supplied
with the boiler, contact supplier of boiler for the hire of
the same if required.
if a = 500mm ; b = 1600mm
if a = 1600mm ; b = 500mm
Multiple Boiler Installations
A clearance of 200mm must be allowed between
boilers when installed in multiple.
No. of boiler sections
8
9
10
11
A mm
970
1058
1146
1234
No. of boiler sections
12
14
16
18
A mm
1322 1498
1674
1850
No. of boiler sections
20
A mm
2026
Note
Please note that boilers installed in or close to rooms in which the atmosphere is polluted by chlorine of fluorine compounds may
be subject to high corrosion.
For example: hairdressing salons, industrial premises (solvents), cooling equipment, etc.
Boilers installed in such locations will not be covered by the guarantee.
12
Concord ES
- Installation and Servicing
INSTALLATION
8
ASSEMBLY
Tools required:
1
8-mm spanner
1
10-mm spanner
1
13-mm spanner
1
19-mm spanner
1
Phillips head screwdriver
1
* Simplified JD assembly tool (8 to 14 sections)
or 1
* JD-TE assembly tool for any model
or 1
* JD-TE Plus assembly tool for any model
* Not supplied with the boiler
Packaging: the tables below provide the numbers of the packages making up the boiler.
The packages are listed in the order in which they are to be opened during assembly
ES140/H
Type of Boiler
ES160/H ES180/H ES200/H ES220/H ES260/H ES300/H ES340/H ES380/H
GD 209
Boiler body:
GD 210
GD 211
GD 212
GD 213
GD 214
GD 215
GD 216
GD 217
- Gas train package
+ piping + base frame
+ combustion chamber
Left-hand side sect.
8358-0003
Intermediate sect.
8358-0001
Right hand side sect.
8358-0002
Set oftwo
tie rods
Package ofunassemb-
led body accessories
Draught diverter
package
Casing & insulation
package
Control panel
BOILER WITH ASSEMBLED BODY
BOILER WITH UNASSEMBLED BODY
1
6
1
1
7
1
1
8
1
1
9
1
1
10
1
1
12
1
1
14
1
1
16
1
1
18
1
8350-
7121
8350-
7122
8350-
7123
8350-
7124
8350-
7125
8350-
7126
8350-
7127
8350-
7128
8358-
7074
GD 12
GD 32
GD 42
GD 51
GD 13
GD 33
GD 43
GD 51
GD 14
GD 34
GD 44
GD 51
GD 15
GD 35
GD 45
GD 51
GD 16
GD 36
GD 46
GD 51
GD 17
GD 37
GD 47
GD 51
GD 18
GD 38
GD 48
GD 51
GD 19
GD 39
GD 49
GD 51
GD 20
GD 40
GD 50
GD 51
GD 2
GD 32
GD 42
GD 51
GD 3
GD 33
GD 43
GD 51
GD 4
GD 34
GD 44
GD 51
GD 5
GD 35
GD 45
GD 51
GD 6
GD 36
GD 46
GD 51
GD 7
GD 37
GD 47
GD 51
GD 8
GD 38
GD 48
GD 51
GD 9
GD 39
GD 49
GD 51
GD 10
GD 40
GD 50
GD 51
GD 209
GD 210
GD 211
GD 212
GD 213
GD 214
GD 215
GD 216
GD 217
- Gas train package
+ piping + base frame
+ combustion chamber
Draught diverter
package
Assembled boiler
body package
Casing & insulation
package
Control panel
CON5258
INST
ALLA
TION
Concord ES -
Installation and Servicing
13
INSTALLATION
%
%
"
$
!
"
#
CON5261
#
!
"
#
CON5260
9
GAS TRAIN UNPACKING
-
Remove the cover and the 4 sides of the gas train package.
-
take out the accessories box (1) and the flow and return
pipes, the front support (2) and the lower panel (3).
-
Put the brush (4) away.
-