Eco Heating Systems CB 85 HW Manual

E93.1803.901
Original Manual
Installation, service and user manual
Wall hung high efficiency water heater
CB 85 HW
CB 105 HW
CB 125 HW
CB 155 HW

E93.1803.901 HW
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TABLE OF CONTENTS
1INTRODUCTION................................................................................................................................... 7
ABBREVIATIONS........................................................................................................................... 7
2SAFETY GUIDELINES ......................................................................................................................... 7
IMPORTANT TECHNICAL WARNINGS AND GUIDELINES ...................................................................... 8
SAFETY VALVE........................................................................................................................... 10
3TECHNICAL DATA HW WATER HEATERS..................................................................................... 11
FUNCTIONAL INTRODUCTION....................................................................................................... 11
LOCATION OF VERSION NUMBERS................................................................................................ 11
TECHNICAL SPECIFICATIONS DATASHEET..................................................................................... 12
TABLE TECHNICAL SPECIFICATIONS ERP..................................................................................... 14
4DIMENSIONS & CONNECTIONS ...................................................................................................... 15
CB 85 HW &CB 105 HWTWIN PIPE.......................................................................................... 15
CB 85 HW &CB 105 HWCONCENTRIC..................................................................................... 16
CB-125-HW TWIN PIPE ............................................................................................................. 17
CB 125 HWCONCENTRIC.......................................................................................................... 18
CB-155-HW TWIN PIPE ............................................................................................................. 19
TANKS EWD300 -EWD500 -EWD750..................................................................................... 20
ERP SPECIFICATIONS ECOHS TANKS........................................................................................... 22
TANK CONNECTIONS AND SIZES................................................................................................... 22
CASCADE FRAMES...................................................................................................................... 23
4.9.1 Cascade frames dimensions ...................................................................................... 24
5ACCESSORIES AND UNPACKING................................................................................................... 25
ACCESSORIES............................................................................................................................ 25
UNPACKING ............................................................................................................................... 25
6INSTALLATION LOCATION OF THE HW......................................................................................... 26
INSTALLATION CLEARANCES ....................................................................................................... 26
WATER HEATER INSTALLATION LOCATION REQUIREMENTS:.......................................................... 26
MOUNTING THE WATER HEATER .................................................................................................. 27
7CONNECTIONS.................................................................................................................................. 28
TANK POSITIONING..................................................................................................................... 28
WATER HEATER CONNECTIONS................................................................................................... 28
CONDENSATE DRAIN CONNECTION .............................................................................................. 28
NON RETURN VALVE................................................................................................................... 29
PUMP FUNCTIONALITY ................................................................................................................ 29
FROST PROTECTION................................................................................................................... 29
WATER QUALITY......................................................................................................................... 30
FLUSH THE SYSTEM WITH FRESH WATER...................................................................................... 30
DE-AIR SEQUENCE..................................................................................................................... 30
WATER PRESSURE..................................................................................................................... 31
8THE HW SANITAIRY SYSTEM: INSTALLATION INSTRUCTIONS................................................. 32
THE HW SYSTEM ....................................................................................................................... 32
8.1.1 Stand-alone set-up...................................................................................................... 32
8.1.2 Stand-alone configuration........................................................................................... 33
8.1.3 CB-HW setup with EWD tank ..................................................................................... 33
8.1.4 CB-HW setup with one NON-EWD tank..................................................................... 34
8.1.5 Cascade set-up........................................................................................................... 35
8.1.6 Cascade calculations.................................................................................................. 36
8.1.7 Elaborated examples .................................................................................................. 40
8.1.8 One CB 125 HW heater with one EWD500 tank........................................................ 40
8.1.9 Two CB 105 HW water heaters with two EWD500 tanks........................................... 41
8.1.10 Pump control............................................................................................................... 42
8.1.11 Tank sensor ................................................................................................................ 42
8.1.12 System Sensor............................................................................................................ 42
8.1.13 Return and Supply piping of a non EWD Tank........................................................... 42

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9HEATEXCHANGER RESISTANCE GRAPHS................................................................................... 43
9.1.1 Resistance graph CB 85 HW...................................................................................... 43
9.1.2 Resistance graph CB 105 HW.................................................................................... 43
9.1.3 Resistance graph CB 125 HW.................................................................................... 44
9.1.4 Resistance graph CB 155 HW.................................................................................... 44
MINIMUM REQUIRED PUMP HEAD................................................................................................. 45
PUMP:MAXIMUM ELECTRIC POWER ............................................................................................. 45
10 FLUE GAS AND AIR SUPPLY SYSTEM........................................................................................... 46
GENERAL................................................................................................................................... 46
POLYPROPYLENE....................................................................................................................... 47
10.2.1 Flexible polypropylene ................................................................................................ 47
STAINLESS STEEL VENT.............................................................................................................. 47
AIR SUPPLY ............................................................................................................................... 47
10.4.1 Combustion air quality ................................................................................................ 48
10.4.2 Air supply through humid areas.................................................................................. 48
10.4.3 Air inlet pipe materials................................................................................................. 48
ROOM AIR.................................................................................................................................. 48
10.5.1 Air contamination ........................................................................................................ 48
PROPER VENT INSTALLATION AND TYPE OF GAS VENT OR VENT CONNECTOR.................................. 49
WATER HEATER CATEGORIES -TYPES OF FLUE GAS SYSTEMS....................................................... 50
C63 CERTIFIED .......................................................................................................................... 55
PIPE HEIGHTS AND MUTUAL DISTANCES ON A FLAT ROOF .............................................................. 55
FLUE GAS AND AIR SUPPLY RESISTANCE TABLE............................................................................ 56
TYPICAL EXAMPLES.................................................................................................................... 57
10.11.1 Example A: Twin pipe system with separate pipes for flue outlet and air supply....... 57
10.11.2 Example B: Twin pipe system with concentric roof terminal....................................... 58
10.11.3 Example C: Single flue gas outlet. Air supply from water heater room ...................... 60
10.11.4 Example D: Concentric flue gas/air supply pipe (roof-mounted)................................ 61
10.11.5 Example E: Concentric system Wall outlet C13 (wall-mounted) ................................ 61
10.11.6 Example F: Separate air supply duct & flue duct in different pressure zone (C53).... 63
11 COMMON FLUE CASCADING .......................................................................................................... 64
SAFETY MEASURES COMMON FLUE SYSTEMS.............................................................................. 64
EXISTING COMMON VENTING GUIDELINES..................................................................................... 66
12 ELECTRICAL INSTALLATION .......................................................................................................... 67
GENERAL................................................................................................................................... 67
CONNECTION MAINS SUPPLY....................................................................................................... 67
ELECTRICAL CONNECTIONS ........................................................................................................ 67
EXPLANATION OF THE LOW VOLTAGE CONNECTIONS..................................................................... 68
EXPLANATION OF THE MAINS VOLTAGE CONNECTIONS.................................................................. 69
ELECTRICAL SCHEMATIC............................................................................................................. 70
LADDER/LOGIC DIAGRAM....................................................FOUT!BLADWIJZER NIET GEDEFINIEERD.
SENSOR AVAILABILITY................................................................................................................. 73
NTC SENSOR CURVE.................................................................................................................. 73
PROGRAMMABLE IN-AND OUTPUTS ............................................................................................. 74
13 WATER HEATER CONTROLLER AND DISPLAY............................................................................ 75
DISPLAY AND SETTINGS.............................................................................................................. 76
13.1.1 Set Actual DHW setpoint directly via the Status overview.......................................... 77
13.1.2 Entering the menu....................................................................................................... 77
13.1.3 Protected menu items................................................................................................. 78
13.1.4 De-aeration Sequence................................................................................................ 78
13.1.5 Language settings....................................................................................................... 78
13.1.6 Change language via the menu.................................................................................. 79
13.1.7 Change the language via the menu Icons .................................................................. 79
WATER HEATER HISTORY............................................................................................................ 79
ERROR LOGGING........................................................................................................................ 80
SERVICE REMINDER.................................................................................................................... 80
13.4.1 Service overdue logging ............................................................................................. 80
13.4.2 Service reminder implementations ............................................................................. 81
13.4.3 Reset the service reminder......................................................................................... 81
13.4.4 Menu’s and parameters .............................................................................................. 81

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GENERAL................................................................................................................................... 82
13.5.1 Pump start exercise every 24 hours ........................................................................... 82
13.5.2 Frost protection........................................................................................................... 82
IGNITION CYCLE ......................................................................................................................... 83
13.6.1 Control functions......................................................................................................... 84
13.6.2 On board HMI and LED colors.................................................................................... 85
13.6.3 Flame detection .......................................................................................................... 85
13.6.4 Flame recovery ........................................................................................................... 85
DEMAND FOR DOMESTIC HOT WATER.......................................................................................... 86
13.7.1 DHW Storage with bulb and strap-on sensor; DHW mode 1...................................... 86
13.7.2 Anti-legionella protection............................................................................................. 87
DISPLAY MENU STRUCTURE SUMMARY......................................................................................... 89
14 TEMPERATURE PROTECTION ........................................................................................................ 97
15 ERROR INFORMATION..................................................................................................................... 97
WATER HEATER HISTORY............................................................................................................ 97
LOCKOUT CODES........................................................................................................................ 98
BLOCKING CODES .................................................................................................................... 100
WARNINGS .............................................................................................................................. 102
16 CASCADING..................................................................................................................................... 103
SYSTEM SETUP ........................................................................................................................ 103
QUICK-GUIDE CASCADE SET-UP ................................................................................................ 104
WATER HEATER CASCADE COMMUNICATION SETUP.................................................................... 104
16.3.1 Setting the water heater address.............................................................................. 105
16.3.2 Setting of the cascade parameters........................................................................... 105
16.3.3 Cascade –Heating only Managing water heater...................................................... 106
16.3.4 Cascade –Domestic Hot Water Settings ................................................................. 106
16.3.5 Cascade –Power balance mode.............................................................................. 107
CASCADE –WATER HEATER ROTATION ..................................................................................... 107
16.4.1 Next depending to start selection ............................................................................. 107
CASCADE ERROR HANDLING .................................................................................................... 107
16.5.1 Cascade Frost protection.......................................................................................... 107
16.5.2 Emergency mode...................................................................................................... 108
16.5.3 Loss of cascade communication............................................................................... 108
16.5.4 Managing water heater error..................................................................................... 108
17 SYSTEM TEST.................................................................................................................................. 109
18 COMMISSIONING THE WATER HEATER...................................................................................... 110
FIRST:FLUSHING THE WATER HEATER WITH WATER.................................................................... 110
SECOND:FILLING &VENTING THE WATER HEATER AND THE SYSTEM............................................ 110
THIRD:CHECK THE WATER FLOW............................................................................................... 110
MOUNTING CONDENSATE TRAP ................................................................................................ 110
CHECKING GAS PRESSURE........................................................................................................ 111
FIRING FOR THE FIRST TIME ...................................................................................................... 111
19 ADJUSTING AND SETTING THE WATER HEATER...................................................................... 112
INTRODUCTION......................................................................................................................... 112
19.1.1 Combustion table...................................................................................................... 112
19.1.2 Setting screws venturi- and gas valves: drawings.................................................... 113
ADJUSTMENT PROCEDURES...................................................................................................... 114
VENTURI REPLACEMENT ADJUSTMENT...................................................................................... 114
CONVERSION FROM NATURAL GAS TO PROPANE......................................................................... 115
START UP CHECKLIST .............................................................................................................. 117
20 INSPECTION, MAINTENANCE AND SERVICE.............................................................................. 119
GENERAL................................................................................................................................. 119
INSPECTION,MAINTENANCE AND SERVICE.................................................................................. 119
20.2.1 Decalcifying of the Heat exchanger.......................................................................... 125
20.2.2 Mounting the burner door.......................................................................................... 126
INSTRUCTIONS FOR THE USER................................................................................................... 126
21 MAINTENANCE CHECKLIST .......................................................................................................... 127

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22 SPARE PARTS................................................................................................................................. 128
CB-85-HW AND CB-105-HW EXPLODED VIEW......................................................................... 128
CB-125-HW EXPLODED VIEW.............................................FOUT!BLADWIJZER NIET GEDEFINIEERD.
CB-155-HW EXPLODED VIEW................................................................................................... 130
LIST OF PARTNUMBERS CB 85 –CB 155........................................................................... 132
23 USER’S PART .................................................................................................................................. 135
ABBREVIATIONS....................................................................................................................... 135
SAFETY GUIDELINES................................................................................................................. 135
TO TURN OFF GAS TO THE APPLIANCE........................................................................................ 136
MAINTENANCE AND INSPECTION................................................................................................ 136
DISPLAY AND BUTTONS............................................................................................................. 137
SCREENS AND SETTINGS .......................................................................................................... 138
STARTING THE WATER HEATER. ................................................................................................ 139
23.7.1 Entering the menu..................................................................................................... 139
CHANGING THE SETPOINT DHW............................................................................................... 140
23.8.1 Set Actual setpoint/DHW setpoint directly via the Status overview.......................... 140
23.8.2 Changing the DHW setpoint directly......................................................................... 140
PASSWORD.............................................................................................................................. 141
AVAILABLE MENU ITEMS ........................................................................................................... 142
23.10.1 Central Heating (CH), Do not use or change these settings ................................... 142
23.10.2 Domestic Hot Water (DHW)...................................................................................... 142
23.10.3 Information................................................................................................................ 142
23.10.4 Software Versions..................................................................................................... 142
23.10.5 Water heater Status.................................................................................................. 142
23.10.6 Water heater History................................................................................................. 143
23.10.7 Error log .................................................................................................................... 143
23.10.8 Service...................................................................................................................... 143
23.10.9 Settings..................................................................................................................... 143
23.10.10 General Settings ....................................................................................................... 143
23.10.11 Language.................................................................................................................. 143
23.10.12 Unit Type................................................................................................................... 143
23.10.13 Date & Time.............................................................................................................. 143
23.10.14 Time zone settings.................................................................................................... 144
23.10.15 Display settings......................................................................................................... 144
23.10.16 Cascade mode.......................................................................................................... 144
23.10.17 Other Settings........................................................................................................... 144
23.10.18 Boiler settings ........................................................................................................... 144
BOILER HISTORY...................................................................................................................... 144
ERROR LOGGING...................................................................................................................... 145
SERVICE REMINDER.................................................................................................................. 145

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1 INTRODUCTION
This manual is written for:
▪the installer
▪system design engineer ▪the service engineer ▪the user
Eco Heating Systems Groningen B.V. is not accountable for any damage caused by following these instructions
incorrectly. Use only original Eco Heating Systems Groningen B.V. spare parts for service and repair purposes.
All documentation produced by the manufacturer is subject to copyright law.
Abbreviations.
CB = Condensing Boiler
HW = Hot Water Boiler for Hot Water (drinking water) usage only.
BCU = burner control unit
PB = display board/ control panel (Pixel Button)
85/105/125/155 = Model number of the water heater.
2 SAFETY GUIDELINES
“FOR YOUR SAFETY READ BEFORE OPERATING”
WARNING:
Improper installation, adjustment, alteration, service or maintenance can cause property
damage or personal injury. Installation and service must be performed by a qualified in-
staller or service agency (who must read and follow the supplied instructions before in-
stalling, servicing, or removing this water heater).
“A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner.
Do not try to light the burner by hand.”
“B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell close to the floor because
some gas is heavier than air and will settle on the floor.”
“C. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the control system and any gas control which has been under
water.”
Without written approval of the manufacturer the internals of the water heater may not be changed. When these
changes are executed without approval, the water heater certification is invalid.
WARNING: Water temperatures over 52 °C can cause severe burns in-
stantly from scalding. The water temperature is factory set at 60 °C be-
cause of legionella prevention. Before bathing or showering always check
the water temperature.
When this heater is supplying general purpose hot water requirements
for use by individuals, a thermostatically controlled mixing valve for
reducing point of use water temperature is recommended to reduce the
risk of scald injury. Contact a licensed plumber or the local plumbing
authority for further information.
This water heater is equipped with a flue pressure switch in the event of a
blocked vent the water heater will lockout. No attempt by the user/owner
should be made to put the water heater back into operation. A qualified
service technician should be notified of the issue. The water heater should only be reset by a qualified service
technician after they have diagnosed and corrected the issue that caused the safety lockout of the water heater.
Eco Heating Systems recommends the installation of a carbon monoxide detector in the water heater room for all
installations.

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What to do if you smell gas:
▪Don't use any electrical equipment.
▪Don't press any switches.
▪Close the gas supply.
▪Ventilate the room (open the windows and/or outdoor water heater room doors).
▪Immediately warn the installer.
The manufacturer/supplier is not liable for any damage caused by inaccurately following of
these mounting instructions. Only original parts may be used when carrying out any repair or
service works.
This appliance can be used by children aged from 8 years and above and persons with re-
duced physical, sensory or mental capabilities or lack of experience and knowledge if they
have been given supervision or instruction concerning use of the appliance in a safe way and
understand the hazards involved.
The protection class for gas appliance type B23(P) is IP20.
Only with the special air inlet (see § 5.1 "Accessories"), the protection class is IPX4D.
Important technical warnings and guidelines
Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or
restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
Maintenance and inspection of the water heater should be carried out at the following conditions:
•When a number of similar error codes and/or lock-outs appear.
•At least every 12 months maintenance must be done to ensure safe and efficient operation.
Damage caused by lack of maintenance will not be covered under warranty
The Eco Heating Systems Hot Water systems will, for a long period, comfortably meet your requirement of hot
water of the right temperature at the right hour, provided that a few important conditions have been fulfilled regard-
ing the installation.
Please follow all instructions and recommendations presented in this manual by Eco Heating Systems, especially
the ones concerning the next important topics:
- Water quality (also see § 8.1)
A first necessary condition is the quality of the water to be heated in the water heater.
Only potable water can be used with this water heater. Do not introduce pool or spa water, or any chemically
treated water into the water heater.
Three values matter: hardness, total amount of dissolved solids and acidity. If water quality does NOT meet
the requirements the system may be seriously damaged in time!
Hardness should not exceed 196 PPM CaCO3(11 °dH). If the waterflow is enlarged, a water hardness up
to 250 PPM (14 °dH) is acceptable.
Water hardness leads to scale formation and may affect/damage the water heater. Hard water scaling
must be avoided or controlled by proper water treatment.
TDS (Total Dissolved Solids) should not exceed 450 PPM
Hardness and TDS together should not exceed 450 PPM
pH value should be between 6,5 and 7,5, measured cold.
The actual values can be retrieved at your local water supplier.
If water quality doesn’t meet the above mentioned requirements, a water treatment installation shall be in-
stalled to improve water quality to the required levels.
- Water flow velocity and pump selection
For a given combination of water heaters and tanks, pump selection is very important with respect to the
required flow velocity. Use the water heater exchanger resistance graphs to calculate the pump needed.

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- Water flow velocity and pipe diameters and lengths
The arguments that hold for pump selection, hold for piping design as well: all piping components added up
are giving a certain total resistance which should not exceed a critical value at which the pump cannot realize
the required flow velocity anymore.
Following the instructions and recommendations given in the referred paragraphs will highly improve the function-
ing and considerably lengthen the life time of your HW system.
Furthermore, for all Eco Heating Systems appliances the next instructions and recommendations apply:
!Never use aluminum or aluminum containing flue gas outlet parts.
!Always fill the siphon before commissioning the water heater
!Always set the gas valve during commissioning of the water heater, for the first time and after maintenance
and/or installation changes
!Never place a (ball) valve between the safety valve and the water heater
!In a log, keep track of all situations regarding the appliance:
what, when, by whom, what actions and/or changes, what communication has been performed
Eco Heating Systems is not liable for any damage caused by inaccurately following these instructions. Only Eco
Heating Systems parts may be used when carrying out any repair or service works.
Do not use chlorine based products for brazing. When commissioning the water heater, the running of the water
heater pump must be checked before leaving the installation.
Firing the water heater without water flow (but filled with water) will cause a boiling noise and can damage the heat
exchanger.
The Outlet and Inlet temperature are checked continuously. The temperature difference may not exceed the pro-
grammed value belonging to the actual power mode. If it does, the water heater will go in a lock-out.
The applied DHW pump must be controlled only by the HW water heater control. If, for any reason, an
external pump control is applied without written approval of Eco Heating Systems, the complete war-
ranty on the HW water heater and all supplied parts will become invalid.
Minimum water pressure 1 bar.
Fuel used should have sulfur rates that comply with the next values: a maximum annual peak over a short period
of time of 150 mg/m3and an annual average of 30 mg/m3 maximum.
Combustion air must be free of contents of chlorine, ammonia and alkali agents. The air near a swimming pool, a
washing machine or a laundry is containing these ammonia contents.
If the water heater is used in combination with a hot water tank without any other heat exchanger; the water heater
should be equipped with a safety relief valve. In some cases also the tank should be equipped with a T&P relief
valve. Always apply all applicable installation standards and regulations.
At first installation, the built-in automatic air vent should be open.
LEGIONNAIRES’ DISEASE
An anti-Legionella function is present in the software and is default turned ON. See this manual for the program-
ming options.

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Safety valve
DO NOT apply a closing valve or any other form of narrowing between the water heater and the safety valve,
because this might disturb the correct functioning of the safety valve.
The right safety valve has been supplied with the CB xxx HW water heater.
Water heater
Safety valves
Part number
HW 85-125
27112 Prescor B ¾ - 10 bar - 150 kW
E04.015.090
HW 155
29007 Prescor B 1 - 10 bar - 250 kW
E04.015.091
The HW water heater and tank should be installed by a skilled installer according to all applicable standards and
regulations for tap water installations. Use the next scheme as guideline. When multiple water heaters and tanks
are applied, every combination has to be equipped with its own safety valve.
Hot water could be released when the safety valve is opened. This can result in severe
personal injury. Before operating the safety valve manually, check that it will discharge in a
safe place. If water does not flow freely from the end of the discharge pipe, turn the gas
supply and power OFF and call a qualified person to determine the cause. Refer to the
safety valve manufacturer's instructions for inspection and maintenance requirements.
A) Potable water inlet
B) Hot water supply (circulation if appli-
cable)
C) Circulation return
1) Pressure regulating valve (manda-
tory in case service water pressure is
too high)
2) Inlet combination with valve (manda-
tory)
3) Apply filter if necessary (recom-
mended)
4) A suitable safety valve must be
mounted near the water heater
(mandatory) This safety valve may
never be isolated from the water
heater by means of a closing valve
5) Remote tank sensor (necessary)
6) Drain valve (recommended)
7) Hot and cold-water mixers
8) Strap-on temperature sensor
If the installation is constructed in such a way that underpressure (Pabs<1 bar;
Patm<0 bar) can occur in the tank, an aerator must be installed between the inlet
combination and the tank, without any valve".
SAFETY COMPONENTS
The picture shows an example of a functional installation. The safety components as shown in
the picture are NOT necessarily conform all applicable standards and regulations.
ALWAYS have the system installed by a skilled installer. Safety components must be added
according to all applicable standards and regulations.
WARNING
PUMP
NON- RETURN VALVE
VALVE
SAFETY VALVE
AUTOMATIC VENT
FILTER
INLET COMBINATION
- Overflow
- Non return valve
- Valve
PRESSURE REGULATING
VALVE
WARNING
NOTICE

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3 TECHNICAL DATA HW WATER HEATERS
Functional introduction
The HW water heaters are water heaters with a maximum high efficiency. Such a performance can be reached
by, amongst other things, using a special heat exchanger made of stainless steel. This allows the flue gases to
cool down below the condensation point, and so release extra heat. This has an immediate positive impact on the
efficiency.
The water heater is set for Natural gas.
Fuel used should have Sulphur rates with a maximum annual peak over a short period of time of 150 mg/m3(110
ppm average) and an annual average of 30 mg/m3 . (22 ppm average)
Water heater control includes:
▪Cascade control for up to sixteen water heaters
▪Remote operation and heat demand indication from each water heater
▪Anti-Legionnaires’ disease function.
Connections for:
▪Water heater pump
▪PWM control for external water heater pump.
▪System pump
▪External flow switch or external safety device.
▪Modbus
▪External system sensor
▪DHW sensor.
▪External Ignition coil
Location of version numbers
Parameter Version
- To be found on the small sticker on the side of the
burner controller.
v.A = “Version A” e.g
Burner Controller Hardware Version
–To be found on the second line of the white sticker
on the side of the burner controller.
e.g. 957MN25_3Rh4b
Burner Controller Software Versions
–Press the menu button , go to Information and then to Software Versions.
Information
Software Versions
Boiler Status
Boiler History
Error Log
i
Software Versions
Display [63EF 83BC]
Boiler [5C79 14A9]
Device Group 900MN

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Technical specifications datasheet
GENERAL
Product identification number:
0063CT3633
Gas Appliance Type
-
B23(P), C13, C33, C43,C53, C63,C83, C93, C(10)3,
C(11)3, C(12)3, C(13)3, C(14)3, C(15)3
Type boiler
CB 85 HW
CB 105 HW
CB 125 HW
CB 155 HW
Classification Netherlands (NL)
II2EK3P
II2EK3P
II2EK3P
II2EK3P
Classification UK (GB)
II2H3P
II2H3P
II2H3P
II2H3P
Classification Germany (DE)
II2E3P
II2E3P
II2E3P
II2ELL3P
Classification France (FR)
II2Esi3P
II2Esi3P
II2Esi3P
II2Esi3P
Classification Belgium (BE)
II2E(S)3P
II2E(S)3P
II2E(S)3P
II2E(S)3P
Classification Italy (IT)
II2H3P
II2H3P
II2H3P
II2H3P
Classification Turkey (TR)
I2H
I2H
I2H
I2H
Classification Ireland (IE)
II2H3P
II2H3P
II2H3P
II2H3P
Dimensions (h x w x d)
mm
845 x 440 x 530
Water content estimated
liter
5.0
6.5
8.3
10.4
Weight (empty)
Kg
77
79
83
86
Flow/return connection (boiler)
Inch
R 1”
R 1”
R 1”
R 1¼”
Gas connection
Inch
R ¾”
R ¾”
R ¾”
R 1”
Flue connection twin pipe
Mm
100
100
100
150
Flue connection concentric pipe
Mm
100/150
100/150
100/150
N.A.
HEATING
Values min-max:
Nominal input (gross) (G20)
kW
17.1 - 90.7
20.7 - 108.1
26.2 - 132.6
38.9 - 161.4
Nominal input (net) (G20)
kW
15.4 - 81.7
18.6 - 97.3
23.6 - 119.4
35.0 - 145.3
Nominal input (gross) (G25.3)
kW
17.4 - 88.6
20.8 - 105.7
26.4 - 129.7
39.3 - 158.0
Nominal input (net) (G25.3)
kW
15.7 - 79.7
18.7 - 95.2
23.8 - 116.9
35.4 - 142.2
Nominal input (gross) (G31)
kW
17.4 - 87.4
20.6 - 103.4
26.2 - 131.2
42.7 - 154.4
Nominal input (net) (G31)
kW
16.0 - 80.5
19.0 - 95.2
24.1 - 120.8
39.3 - 142.2
Nominal output 80/60 °C (G20)
kW
14.9 - 79.1
18.0 - 94.2
22.9 - 115.7
33.9 - 140.9
Nominal output 50/30 °C (G20)
kW
16.0 - 85.1
19.5 - 101.8
24.7 - 124.7
36.4 - 151.0
Nominal output 37/30 °C (G20)
kW
16.6 - 88.4
20.2 - 105.5
25.6 - 129.4
38.0 - 157.8
Nominal output 80/60 °C (G25.3)
kW
15.2 - 77.0
18.1 - 92.3
23.1 - 113.4
34.3 - 137.9
Nominal output 50/30 °C (G25.3)
kW
16.4 - 83.0
19.6 - 99.6
24.9 - 121.1
36.8 - 147.7
Nominal output 37/30 °C (G25.3)
kW
17.0 - 88.4
20.3 - 105.5
25.8 - 129.4
38.4 - 157.8
Efficiency (input 30%, return tem-
perature 30 °C)
%
108.2%
108.4%
108.4%
108.6%
GAS CONSUMPTION Values min-max:
Natural gas (G20)
m3/h
1.6 –8.5
1.9 –10.2
2.5 –12.5
3.7 –15.3
Natural gas (G25.3) 7
m3/h
1.8 –9.2
2.2 –11.6
2.8 –14.2
4.1 –16.3
Propane (G31) 1
m3/h
0.6 –3.2
0.8 –3.9
1.0 –4.8
1.6 –5.7
Gas supply pressure
nominal 2
G20
mbar
20
G25.3 7
mbar
25
G31
mbar
37

E93.1803.901 HW
13
Type boiler
CB 85 HW
CB 105 HW
CB 125 HW
CB 155 HW
EMISSION Values min-max:
CO2flue gas 3
G20
%
7.9 –8.4
7.9 –8.4
7.9 –8.4
7.9 –8.4
G25.3 7)
%
8.4 –8.2
8.4 –8.2
8.4 –8.2
8.4 –8.2
G31
%
10.5 –9.3
10.3 –9.3
10.3 –9.5
10.3 –9.5
O2flue gas 3
G20
%
6.9 - 6.0
6.9 - 6.0
6.9 - 6.0
6.9 - 6.0
G25.3 7)
%
5.7 - 6.1
5.7 - 6.1
5.7 - 6.1
5.7 - 6.1
G31
%
4.9 –6.7
5.2 - 6.7
5.2 –6.4
5.2 –6.4
NOx class
-
6
6
6
6
Flue gas temperature at combustion air
temperature = 20 °C
°C
60 - 90
Mass flow flue gas (min/max)
g/s
8.0 - 42
10 - 51
12 - 62
15 - 76
Available pressure for the flue system 4
Pa
200
INSTALLATION
Resistance water heater
T = 12.5 K
m.W.C
9.00
9.50
9.56
8.53
T = 16.5 K
5.45
5.65
5.54
5.14
Pressure water heater max.
bar
8.0
Max. water temperature
°C
85
Pressure relief valve max. pressure
bar
10
ELECTRIC
Maximum power consumption 5
W
190
280
280
280
Power supply
V/Hz
230 / 50
Protection class 6
-
IPX4D
NOTES
1Using propane, a restriction needs to be placed and the maximum and minimum fan speed needs to be
changed
2Min. and max. gas supply pressures:
p nom [mbar]
p min [mbar]
p max [mbar]
G20
20
17
25
G25.3
25
20
30
G31
37
25
57.5
3O2/ CO2of the unit measured/set without the water heater front panel in place
4Maximum allowed combined resistance of flue gas and air supply piping at high fire
5Power consumption is measured without circulation pump
6For gas appliance type B23(P) only class IPX4D with special air inlet (see § 5.1 "Accessories"), otherwise
the protection class is IP20.
7 Only applicable to the Dutch manual.

E93.1803.901 HW
14
Table technical specifications ERP
Type water heater:
CB 85
CB 105
CB 125
CB 155
Load profile
XXL
XXL
3XL
3XL
Unit
Water heating energy efficiency (ηwh)
%
85.9
85.6
89.6
89.1
Daily fuel consumption (Qfuel)
kWh
27.840
27.800
51.540
51,730
Daily electricity consumption (Qelec)
kWh
0.292
0.346
0.260
0.289
Emissions of nitrogen oxides
(EN15502-1:2012+A1:2015)
mg/kWh
23.1
21.3
23.9
20.1
Sound power level, indoors (LWA)
(EN 15036-1:2006)
dB(A)
65.8
68.0
67.8
73.0
A water tank is needed when applying a CB-HW water heater appliance.
The efficiency of the complete installation depends on:
• type of water tank.
• volume of the water tank.
• number of tanks
• number of water heaters
• type of circulation pump.
• length of the connecting pipes.
• insulation of the connecting pipes.
The load profile might be higher depending on the applied tank volume,.
Boiler is IP20 applying a
dust filter or bird screen only
Boiler is IPX4D applying a dust fil-
ter or bird screen with two elbows
and if necessary, a short straight
pipe.

E93.1803.901 HW
15
4 DIMENSIONS & CONNECTIONS
CB 85 HW & CB 105 HW Twin pipe
Connections
Twin Pipe CB 85 &105
A
Hot water Outlet
BSP 1”
B
Cold water Inlet
BSP 1”
C
Condensate
Flexible hose Ø 25/21 mm
D
Gas
BSP ¾”
E / F
Flue gas / Air inlet
100 / 100 mm
EHS.T0200.5034

E93.1803.901 HW
16
CB 85 HW & CB 105 HW Concentric
Connections
Concentric CB 85 & 105
A
Hot water Outlet
BSP 1”
B
Cold water Inlet
BSP 1”
C
Condensate
Flexible hose Ø 25/21 mm
D
Gas
BSP ¾”
E /
F
Flue gas / Air inlet
100 /150 mm
EHS.T0200.5035

E93.1803.901 HW
17
CB-125-HW Twin pipe
Connections
Twin Pipe CB 125
A
Hot water Outlet
BSP 1”
B
Cold water Inlet
BSP 1”
C
Condensate
Flexible hose Ø 25/21
mm
D
Gas
BSP ¾”
E / F
Flue gas / Air inlet
100 / 100 mm
EHS.T0200.5025

E93.1803.901 HW
18
CB 125 HW Concentric
Connections
Concentric CB 125
A
Hot water Outlet
BSP 1”
B
Cold water Inlet
BSP 1”
C
Condensate
Flexible hose Ø 25/21
mm
D
Gas
BSP ¾”
E / F
Flue gas / Air inlet
100 /150 mm
EHS.T0200.5026

E93.1803.901 HW
19
CB-155-HW Twin pipe
Connections
Twin Pipe CB 155
A
Hot water Outlet
BSP 1¼”
B
Cold water Inlet
BSP 1¼”
C
Condensate
Flexible hose Ø 25/21
mm
D
Gas
BSP 1”
E / F
Flue gas / Air inlet
150 / 150 mm
EHS.T0200.5014

E93.1803.901 HW
20
Tanks EWD300 - EWD500 - EWD750
For the connections marked A-H see § 4.8.
EWD300 EWD500
The EWD300, EWD500 and EWD750 are supplied including an
already assembled slice sensor (directly glued to the tank behind
the insulation) The sensor has an cable with a length of 5 meter.

E93.1803.901 HW
21
EWD750
For the connections marked A-H see § 4.8.
The EWD300, EWD500 and EWD750 are supplied including an
already assembled slice sensor (directly glued to the tank behind
the insulation) The sensor has an cable with a length of 5 meter.