DeDietrich C 330 ECO Troubleshooting guide

EN
Gas fired floor-standing condensing boiler
C 330 ECO -
C 630 ECO
Installation, User
and Service
Manual
7600532-01

EG declaration of conformity
The device complies with the standard type described in the EG
declaration of conformity. It was manufactured and commissioned in
accordance with European directives.
The original of the declaration of compliance is available from the
manufacturer.

Contents
1 Introduction ................................................................................................6
1.1 Symbols used .......................................................6
1.2 Abbreviations ........................................................6
1.3 General ..................................................................7
1.3.1 Manufacturer's liability .............................................7
1.3.2 Installer's liability .....................................................7
1.3.3 User's liability ..........................................................7
2Safety instructions and recommendations ..............................................9
2.1 Safety instructions ...............................................9
2.2 Recommendations ................................................9
3Technical description ..............................................................................11
3.1 General description ............................................11
3.2 Homologations ....................................................11
3.2.1 Certifications .........................................................11
3.2.2 Equipment categories ...........................................12
3.2.3 Data plate ..............................................................12
3.2.4 Factory test ...........................................................12
3.3 Main parts ............................................................13
3.3.1 Boiler type C 330 ECO ..........................................13
3.3.2 Boiler type C 630 ECO ..........................................14
3.3.3 System pump ........................................................14
3.3.4 Regulation of the water temperature .....................15
3.3.5 Protection against a shortage of water ..................15
3.3.6 Maximum temperature protection .........................15
3.3.7 Air differential pressure switch ..............................15
3.4 Technical specifications ....................................16
3.4.1 Boiler type C 330 ECO ..........................................16
3.4.2 Boiler type C 630 ECO ..........................................17
4 Installation ................................................................................................19
4.1 Regulations governing installation ...................19
4.2 Package list .........................................................19
4.2.1 Standard delivery ..................................................19
4.2.2 Accessories ...........................................................19
4.3 Installation options .............................................20
4.3.1 Transport ...............................................................20
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4.3.2 Location of the boiler .............................................21
4.3.3 Main dimensions ...................................................27
4.4 Hydraulic connections .......................................29
4.4.1 Flushing the system ..............................................29
4.4.2 Connection of the heating circuit ...........................29
4.4.3 Connecting the condensate discharge pipe ..........30
4.5 Gas connection ...................................................30
4.6 Connections for the air and exhaust
pipes ....................................................................31
4.6.1 Classification .........................................................32
4.6.2 Outlets ...................................................................32
4.6.3 Lengths of the air/flue gas pipes ...........................32
4.6.4 Additional Directives ..............................................35
4.6.5 Connection of the combustion gas exhaust
pipe .......................................................................36
4.6.6 Connection of the air intake pipe ...........................36
4.7 Electrical connections ........................................37
4.7.1 Control unit ............................................................37
4.7.2 Recommendations ................................................38
4.7.3 Standard control PCB ...........................................38
4.7.4 Connecting the on/off control ................................40
4.7.5 Connecting modulating controller .........................40
4.7.6 Shutdown input .....................................................40
4.7.7 Release input ........................................................40
4.7.8 System pump ........................................................41
4.7.9 PC/Laptop connection ...........................................41
4.7.10 Connection possibilities for the PCB (SCU-
D4) ........................................................................41
4.8 Optional electrical connections ........................42
4.8.1 Connection possibilities for the PCB (SCU-
S05) .......................................................................42
4.9 Electrical diagram ...............................................47
4.10 Filling the system ...............................................47
4.10.1 Water treatment ....................................................48
4.10.2 Filling the siphon ...................................................49
4.10.3 Filling the system ..................................................49
5 Commissioning ........................................................................................50
5.1 Control panel .......................................................50
5.2 Check points before commissioning ................50
5.2.1 Preparing the boiler for commissioning .................50
5.2.2 Gas circuit .............................................................51
5.2.3 Hydraulic circuit .....................................................51
5.2.4 Connections for the air and exhaust pipes ............51
5.2.5 Electrical connections ...........................................51
5.3 Commissioning the boiler ..................................51
5.3.1 DIEMATIC iSystem control panel ..........................51
Contents
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5.3.2 IniControl control panel .........................................52
5.4 Gas settings ........................................................53
5.4.1 Setting the air/gas ratio (Full load) (Diematic
iSystem) ................................................................53
5.4.2 Setting the air/gas ratio (Part load) (Diematic
iSystem) ................................................................54
5.4.3 Setting the air/gas ratio (Full load)
(IniControl) ............................................................55
5.4.4 Setting the air/gas ratio (Part load)
(IniControl) ............................................................56
5.5 Checks and adjustments after
commissioning ...................................................57
5.5.1 Finalizing work ......................................................57
5.6 Reading out measured values ...........................58
5.7 Changing the settings ........................................58
6 Switching off the boiler ............................................................................59
6.1 Installation shutdown .........................................59
6.1.1 Diematic iSystem ..................................................59
6.1.2 IniControl ...............................................................59
6.2 Frost protection ..................................................59
6.2.1 Diematic iSystem ..................................................60
6.2.2 IniControl ...............................................................60
7 Checking and maintenance .....................................................................61
7.1 General ................................................................61
7.2 Standard checks .................................................61
7.2.1 Checking the hydraulic pressure ...........................62
7.2.2 Checking the ionization current .............................62
7.2.3 Check the water quality .........................................62
7.2.4 Checking the air supply connections and flue gas
discharge connections ..........................................63
7.2.5 Checking the gas filter for pollution .......................63
7.2.6 Checking combustion ............................................63
7.2.7 Check the air supply hose .....................................64
7.2.8 Check the dirt trap .................................................64
7.2.9 Check the air box ..................................................65
7.2.10 Check the air pressure differential switch PS ........65
7.2.11 Check the gas leakage control VPS ......................67
7.2.12 Check the minimum gas pressure switch
Gps ........................................................................69
7.3 Specific maintenance operations ......................69
7.3.1 Clean the fan and the venturi ................................70
7.3.2 Clean and inspect the non-return valve ................71
7.3.3 Replacing the ionization/ignition electrode ............71
7.3.4 Cleaning the gas filter ...........................................72
7.3.5 Cleaning the burner ...............................................73
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7.3.6 Clean the burner area ...........................................73
7.3.7 Checking the heat exchanger ...............................74
7.3.8 Cleaning the condensate collector ........................75
7.3.9 Cleaning the siphon ..............................................75
7.3.10 Assembling the boiler ............................................76
7.3.11 Put the boiler back into operation ..........................76
8 Troubleshooting .......................................................................................77
8.1 Troubleshooting .................................................77
9 Spare parts ................................................................................................78
9.1 General ................................................................78
9.2 Spare parts ..........................................................78
9.2.1 Casing ...................................................................79
9.2.2 Heat exchanger and burner ..................................80
9.2.3 Fan ........................................................................81
9.2.4 Control panel .........................................................82
9.2.5 Spare parts C630 ECO .........................................83
9.2.6 Spare parts list ......................................................84
Contents
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31/05/2012 - 7600532-01 5

1 Introduction
1.1 Symbols used
In these instructions, various danger levels are employed to draw the
user's attention to particular information. In so doing, we wish to
safeguard the user's safety, obviate hazards and guarantee correct
operation of the appliance.
DANGER
Risk of a dangerous situation causing serious physical
injury.
WARNING
Risk of a dangerous situation causing slight physical
injury.
CAUTION
Risk of material damage.
Signals important information.
¼ Signals a referral to other instructions or other pages in the
instructions.
1.2 Abbreviations
4Interscenario switch: Home automation switch that can be used
to centralise and control several scenarios
4Hi: Lower heating value LHV (Nett)
4Hs: Higher heating value HHV (Gross)
4PPS: Polypropylene hardly inflammable
4PCU: Primary Control Unit - PCB for managing burner operation
4PSU: Parameter Storage Unit - Parameter storage for PCBs
PCU and SU
4SCU: Secondary Control Unit - Extended control PCB
4SU: Safety Unit - Safety PCB
43WV: 3-way valve
1. Introduction C 330 ECO - C 630 ECO
631/05/2012 - 7600532-01

1.3 General
1.3.1. Manufacturer's liability
Our products are manufactured in compliance with the requirements
of the various applicable European Directives. They are therefore
delivered with [ marking and all relevant documentation.
In the interest of customers, we are continuously endeavouring to
make improvements in product quality. All the specifications stated in
this document are therefore subject to change without notice.
Our liability as the manufacturer may not be invoked in the following
cases:
4Failure to abide by the instructions on using the appliance.
4Faulty or insufficient maintenance of the appliance.
4Failure to abide by the instructions on installing the appliance.
1.3.2. Installer's liability
The installer is responsible for the installation and inital start up of the
appliance. The installer must respect the following instructions:
4Read and follow the instructions given in the manuals provided
with the appliance.
4Carry out installation in compliance with the prevailing legislation
and standards.
4Perform the initial start up and carry out any checks necessary.
4Explain the installation to the user.
4If a maintenance is necessary, warn the user of the obligation to
check the appliance and maintain it in good working order.
4Give all the instruction manuals to the user.
1.3.3. User's liability
To guarantee optimum operation of the appliance, the user must
respect the following instructions:
4Read and follow the instructions given in the manuals provided
with the appliance.
4Call on qualified professionals to carry out installation and initial
start up.
4Get your installer to explain your installation to you.
4To carry out inspections and maintenance required by a qualified
professional.
4Keep the instruction manuals in good condition close to the
appliance.
C 330 ECO - C 630 ECO 1. Introduction
31/05/2012 - 7600532-01 7

This appliance is not intended to be used by persons (including
children) whose physcial, sensory or mental capacity is impaired or
persons with no experience or knowledge, unless they have the
benefit, through the intermediary of a person responsible for their
safety, of supervision or prior instructions regarding use of the
appliance. Care should be taken to ensure that children do not play
with the appliance.
1. Introduction C 330 ECO - C 630 ECO
831/05/2012 - 7600532-01

2 Safety instructions and
recommendations
2.1 Safety instructions
DANGER
If you smell gas:
1. Do not use a naked flame, do not smoke, do not
operate electrical contacts or switches ( doorbell,
light, motor, lift, etc..).
2. Shut off the gas supply.
3. Open the windows.
4. Trace possible leaks and seal them immediately.
5. If the gas leak is before the gas meter, contact the
gas supplier.
DANGER
If you smell flue gases:
1. Switch the appliance off.
2. Open the windows.
3. Trace possible leaks and seal them immediately.
2.2 Recommendations
WARNING
4Installation and maintenance of the boiler must be
carried out by a qualified professional in compliance
with prevailing local and national regulations.
4When working on the boiler, always disconnect the
boiler from the mains and close the main gas inlet
valve.
4After maintenance or repair work, check all
installations to ensure that there are no leaks.
CAUTION
The boiler must be installed in a frost-free environment.
Store this document in the document wallet on the inside
of the boiler casing (Underneath the instrument panel).
Casing components
C 330 ECO - C 630 ECO 2. Safety instructions and recommendations
31/05/2012 - 7600532-01 9

Only remove the casing for maintenance and repair operations. Put
the casing back in place after maintenance and repair operations.
Instructions stickers
The instructions and warnings affixed to the appliance must never be
removed or covered and must remain legible during the entire lifespan
of the appliance. Immediately replace damaged or illegible
instructions and warning stickers.
Modifications
Modifications may only be made to the boiler after the written
permission of De Dietrich Thermique to do so.
2. Safety instructions and recommendations C 330 ECO - C 630 ECO
10 31/05/2012 - 7600532-01

3 Technical description
3.1 General description
Gas fired floor-standing condensing boiler
4High efficiency heating.
4Low pollutant emissions.
4Heat exchanger made of cast aluminium sections.
4Transport wheels as standard.
4Left or right-hand version of the water and flue gas side
connections possible.
4Separable for assembly in boiler room.
4DIEMATIC iSystem or IniControl control panel
Boiler type:
4Type C 330 - 280 Eco: Output 282 kW
4Type C 330 - 350 Eco: Output 353 kW
4Type C 330 - 430 Eco: Output 427 kW
4Type C 330 - 500 Eco: Output 499 kW
4Type C 330 - 570 Eco: Output 573 kW
4Type C 330 - 650 Eco: Output 647 kW
Boiler type:
The C 630 condensing boiler corresponds to a cascade composed of
2 individual boilers (C 330).
4Type C 630 - 560 Eco: Output 564 kW
4Type C 630 - 700 Eco: Output 706 kW
4Type C 630 - 860 Eco: Output 854 kW
4Type C 630 - 1000 Eco: Output 998 kW
4Type C 630 - 1140 Eco: Output 1146 kW
4Type C 630 - 1300 Eco: Output 1294 kW
3.2 Homologations
3.2.1. Certifications
CE identification no PIN 0063CL3613
NOx classification 5 (EN 297 pr A3, EN 656)
Type of connection Chimney: B23 , B23P
Flue gas outlet: C33 , C53 , C63 , C83 , C93
C 330 ECO - C 630 ECO 3. Technical description
31/05/2012 - 7600532-01 11

3.2.2. Equipment categories
3.2.3. Data plate
The identification plate is located behind the boiler casing on the
frame, near the syphon connection. It contains the boiler serial
number and important boiler specifications, such as the model and
the gas category.
3.2.4. Factory test
Before leaving the factory, each boiler is set for optimum performance
and tested to check the following items:
4Electrical safety
4Adjustment (CO2)
4Water tightness
4Gas tightness
4Parameter settings
T003475-F
3. Technical description C 330 ECO - C 630 ECO
12 31/05/2012 - 7600532-01

3.3 Main parts
3.3.1. Boiler type C 330 ECO
T004014-D
2
1
3
4
5
6
7
8
27
28
29
30
32
34
31
33
35
36
37
38
39
11
12
14
13
15
16
17
18
19
20
22
24
26
21
23
25
10
9
1Flow connection(1) 21 Return sensor
2Air differential pressure switch 22 Gas filter
3Flue gas discharge pipe 23 Data plate
4Return connection 24 Siphon
5Outlet for measuring combustion gases 25 Transport wheels
6Flue gas thermostat (Accessory) 26 Jacking bolt
7Condensate collector sealant cap 27 Gas connection
8Pivoting castor 28 Gas pressure measurement point
9Jacking bolt 29 Control panel
10 Base frame 30 Location for optional features or a control unit
11 Second return connection (Accessory) 31 Pressure measurement point
12 Heat exchanger insulation 32 Sight glass
13 Boiler casing 33 Non-return valve
14 Combustive air inlet 34 Fan
15 Burner 35 Extension piece
16 adapter 36 Venturi
17 Ignition/ionization electrode 37 Gas block
18 Heat exchanger 38 Air inlet hose
19 Inspection hatch 39 Document holder
20 Heat exchanger sensor
(1) ¼ For more details about the devices in the flow pipe, please see "Connection of the heating circuit", page 29
C 330 ECO - C 630 ECO 3. Technical description
31/05/2012 - 7600532-01 13

3.3.2. Boiler type C 630 ECO
T004015-E
1
3
4
5
2
6
7
8
27
28
29
30
32
34
31
33
35
36
14
13
15
16
17
18
19
20
22
24
26
21
23
25
10
11
12
9
37
38
39
1Flow connection(1) 21 Return sensor
2Air differential pressure switch 22 Gas filter
3Flue gas discharge pipe 23 Data plate
4Return connection 24 Siphon
5Outlet for measuring combustion gases 25 Transport wheels
6Flue gas thermostat (Accessory) 26 Jacking bolt
7Condensate collector sealant cap 27 Gas connection
8Pivoting castor 28 Gas pressure measurement point
9Jacking bolt 29 Control panel
10 Base frame 30 Location for optional features or a control unit
11 Heat exchanger insulation 31 Pressure measurement point
12 Flue gas collector 32 Sight glass
13 Boiler casing 33 Non-return valve
14 Combustive air inlet 34 Fan
15 Burner 35 Extension piece
16 adapter 36 Venturi
17 Ignition/ionization electrode 37 Gas block
18 Heat exchanger 38 Air inlet hose
19 Inspection hatch 39 Document holder
20 Heat exchanger sensor
(1) ¼ For more details about the devices in the flow pipe, please see "Connection of the heating circuit", page 29
3.3.3. System pump
The boiler does not have a built-in pump. A system pump can be
installed on the connector of the standard control PCB. This can be
an on/off pump or a modulating pump (with 0 - 10 V control).
3. Technical description C 330 ECO - C 630 ECO
14 31/05/2012 - 7600532-01

¼ For more information on controlling a modulating pump, See
paragraph: "Electrical connections", page 37.
If noises caused by flow in the system can be heard:
4First of all, vent the heating system.
4Reduce the maximum pump speed (Parameter MAX.PUMP
SPEED on DIEMATIC iSystem - Parameter p44 on
IniControl).
If circulation in the radiators is too weak or the radiators do not fully
heat up:
4Increase the minimum pump speed (Parameter MIN.PUMP
SPEED on DIEMATIC iSystem - Parameter p43 on
IniControl).
¼ See the manual for the control panel.
3.3.4. Regulation of the water temperature
The boiler is equipped with electronic temperature control based on
flow, return, and boiler block temperature sensors. The flow
temperature can be set between 20°C and 90°C. The boiler reduces
its power when the set outlet-temperature is attained. The cutout
temperature is the set heating outlet-temperature + 5 °C.
3.3.5. Protection against a shortage of water
The boiler is fitted with a safety device to prevent the shortage of water
based on temperature measurements (Temperature difference
between flow and return). If ΔT = 25 K is reached (factory setting),
the boiler reduces its output by modulating to remain in operation as
long as possible. If ΔT ≥ 25 K the boiler goes into part load. If ΔT >
25 + 5 K the boiler goes into a normal control stop (blocking).
3.3.6. Maximum temperature protection
The maximum protection switches the boiler off if the water
temperature is too high (110°C) and locks it on the control box. Once
the fault has been rectified, the boiler can be reset by pressing the
J button for 2 seconds.
3.3.7. Air differential pressure switch
Before a start and when the boiler is in operation, the air pressure
differential switch PS measures the difference in pressure between
the measuring points at the rear of the heat exchanger p+ and the air
box p-. If the pressure difference is greater than 6 mbar, then the boiler
will lock out. Once the fault has been rectified, the boiler can be reset
by pressing the J button for 2 seconds.
C 330 ECO - C 630 ECO 3. Technical description
31/05/2012 - 7600532-01 15

3.4 Technical specifications
3.4.1. Boiler type C 330 ECO
Boiler type C 330 ECO Unit 280 350 430 500 570 650
General
Number of sections - - 5 6 7 8 9 10
EC indentification no. PIN 0063CL3613
Flow rate setting Adjustable Modulating, Start/Stop, 0 - 10 V
Nominal output (Pn)
(80/60 °C)
minimum
maximum(1) kW 51
261
65
327
79
395
92
461
106
530
119
601
Nominal output (Pn)
(50/30 °C)
maximum(1) kW 279 350 425 497 574 651
Nominal input(Qn)
(Hs)
minimum
maximum(1) kW 60
295
75
369
96
445
105
520
121
598
135
677
Nominal input (Qn)
(Hi)
minimum
maximum(1) kW 54
266
68
333
82
402
95
469
109
539
122
610
Full load water efficiency (Hi) (80/60 °C) % 98,0 98,1 98,2 98,3 98,4 98,5
Full load water efficiency (Hi) (50/30 °C) % 104,8 105,2 105,6 106,0 106,4 106,8
Low load water efficiency (Hi)
(Return temperature 60°C) % 94,7 95,3 95,8 96,3 96,8 97,3
Data on the gases and combustion gases
Gas consumption G20 (Gas H) minimum
maximum m3/h 5,7 28,1
7,2
35,2
8,7
42,5
10,1
49,6
11,5
57,0
12,9
64,6
Gas inlet pressure G20 (Gas H) minimum
maximum mbar 17 30
17
30
17
100
17
100
17
100
17
50
Flue gas losses % 2,3 2,3 2,3 2,3 2,3 2,3
Mass flue gas flow rate minimum
maximum
kg/h 91
448
114
560
138
676
160
789
183
907
205
1026
Flue gas temperature minimum
maximum
°C 30
80
Maximum residual fan duty for flue gas Pa 130 120 130 150 150 150
Characteristics of the heating circuit
Water content - l 49 60 71 82 93 104
Water operating pressure minimum bar 0,8
Water operating pressure (PMS) maximum bar 7
Water temperature maximum °C 110
Operating temperature
minimum
maximum °C
20
90
Factory setting 80
Water resistance (∆T = 20K) mbar 113 110 120 110 125 130
kPa 11,3 11 12 11 12,5 13,0
Water resistance (∆T = 11K) mbar 374 364 397 364 413 435
kPa 37,4 36,4 39,7 36,4 41,3 43,5
Electrical characteristics
Power supply voltage VAC/Hz 230/50
Fuse (230 VAC) F2 Circuit-breaker AT 10
F1 control PCB AT 2
(1) Factory setting
(2) For a room sealed operation
3. Technical description C 330 ECO - C 630 ECO
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Boiler type C 330 ECO Unit 280 350 430 500 570 650
Power consumption - Full load maximum W 279 334 426 543 763 723
Power consumption - Part load maximum W 46 46 58 61 62 55
Power consumption - Standby maximum W 6 6 6 6 6 7
Electrical protection index IP X1B(2)
Other characteristics
Weight (empty) Total kg 364 398 433 495 531 568
Acoustic level at 1 metre(2).dB(A) 61 61 65 65 65 65
Ambient temperature maximum °C 40
(1) Factory setting
(2) For a room sealed operation
3.4.2. Boiler type C 630 ECO
Boiler type C 630 ECO Unit 560 700 860 1000 1140 1300
General
Number of sections - - 2x5 2x6 2x7 2x8 2x9 2x10
EC indentification no. PIN 0063CL3613
Flow rate setting Adjustable Modulating, Start/Stop, 0 - 10 V
Nominal output (Pn)
(80/60 °C)
minimum
maximum(1) kW 69
522
87
654
123
790
122
922
148
1060
158
1202
Nominal output (Pn)
(50/30 °C)
maximum(1) kW 558 700 850 994 1148 1303
Nominal input(Qn)
(Hs)
minimum
maximum(1) kW 80
590
101
738
142
890
141
1040
170
1196
180
1354
Nominal input (Qn)
(Hi)
minimum
maximum(1) kW 72
532
91
666
128
804
127
938
170
1078
162
1220
Full load water efficiency (Hi) (80/60 °C) % 98,0 98,1 98,2 98,3 98,4 98,5
Full load water efficiency (Hi) (50/30 °C) % 104,8 105,2 105,6 106,0 106,4 106,8
Low load water efficiency (Hi)
(Return temperature 60°C) % 94,7 95,3 95,8 96,3 96,8 97,3
Data on the gases and combustion gases
Gas consumption G20 (Gas H) minimum
maximum m3/h 7,6 56,2
9,6
70,4
13,5
85,0
13,4
99,2
16,2
114,0
17,2
129,2
Gas inlet pressure G20 (Gas H) minimum
maximum mbar 17 30
17
30
17
100
17
100
17
100
17
50
Flue gas losses % 2,3 2,3 2,3 2,3 2,3 2,3
Mass flue gas flow rate minimum
maximum
kg/h 182
896
228
1120
276
1352
320
1578
366
1814
410
2052
Flue gas temperature minimum
maximum
°C 30
80
Maximum residual fan duty for flue gas Pa 130 120 130 130 130 130
Characteristics of the heating circuit
Water content - l 98 120 142 164 186 208
Water operating pressure minimum bar 0,8
Water operating pressure (PMS) maximum bar 7
Water temperature maximum °C 110
Operating temperature
minimum
maximum °C
20
90
Factory setting 80
(1) Factory setting
(2) For a room sealed operation
C 330 ECO - C 630 ECO 3. Technical description
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Boiler type C 630 ECO Unit 560 700 860 1000 1140 1300
Water resistance (∆T = 20K) mbar 113 110 120 110 125 130
kPa 11,3 11 12 11 12,5 13
Water resistance (∆T = 11K) mbar 374 364 397 364 413 435
kPa 37,4 36,4 39,7 36,4 41,3 43,5
Electrical characteristics
Power supply voltage VAC/Hz 230/50
Fuse (230 VAC) F2 Circuit-breaker AT 10
F1 control PCB AT 2
Power consumption - Full load maximum W 558 668 852 1086 1526 1446
Power consumption - Part load maximum W 92 92 116 122 124 110
Power consumption - Standby maximum W 12 12 12 12 12 14
Electrical protection index IP X1B(2)
Other characteristics
Weight (empty) Total kg 707 771 837 957 1025 1095
Acoustic level at 1 metre(2).dB(A) 64 64 68 68 68 68
Ambient temperature maximum °C 40
(1) Factory setting
(2) For a room sealed operation
3. Technical description C 330 ECO - C 630 ECO
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