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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 Original Manual...
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.
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.
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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.
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.
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.
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Boiler is IPX4D applying a dust fil- Boiler is IP20 applying a ter or bird screen with two elbows dust filter or bird screen only and if necessary, a short straight pipe. Table technical specifications ERP Type water heater: CB 85 CB 105 CB 125 CB 155...
CB-125-HW Twin pipe Connections Twin Pipe CB 125 BSP 1” Hot water Outlet BSP 1” Cold water Inlet Condensate Flexible hose Ø 25/21 BSP ¾” 100 / 100 mm E / F Flue gas / Air inlet EHS.T0200.5025 E93.1803.901 HW...
CB 125 HW Concentric Connections Concentric CB 125 BSP 1” Hot water Outlet BSP 1” Cold water Inlet Condensate Flexible hose Ø 25/21 BSP ¾” 100 /150 mm E / F Flue gas / Air inlet EHS.T0200.5026 E93.1803.901 HW...
CB-155-HW Twin pipe Connections Twin Pipe CB 155 BSP 1¼” Hot water Outlet BSP 1¼” Cold water Inlet Condensate Flexible hose Ø 25/21 BSP 1” 150 / 150 mm E / F Flue gas / Air inlet EHS.T0200.5014 E93.1803.901 HW...
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...
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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. E93.1803.901 HW...
ERP specifications Ecohs tanks Type EWD300 EWD500 EWD750 Energy efficiency class Standing loss (S) Watt Volume (V) liter Tank connections and sizes Code Connection M / F Remarks EWD300 EWD500 EWD750 incl. reducing ring R 2" R 2" R 2" return to water heater excl.
Item part number Adhesive kit 04 S022.000.001 LOCTITE® SI 5366™ 50ml S022.000.002 Air inlet filter kit CB 85 HW and CB 105 HW and CB 125 HW S022.500.018 Air inlet filter kit CB 155 HW S022.500.019 IP module S022.500.006 External HW-Tank temperature sensor 10kOhm@25°C (supplied with the water heater), to be S022.500.009...
6 INSTALLATION LOCATION OF THE HW Installation Clearances On all sides of the water heater at least 5 cm of clearance should be applied to walls or wall units, 35 cm above the top side of the water heater and 25 cm from the bottom of the water heater. Clearances to wall, ceiling and floor, distances in cm A: Front B: Top...
Mounting the water heater Before mounting and installing the water heater the following connections should be considered: • Flue gas system and the flue gas pipe connections • Air supply system and connections • Hot water inlet and outlet pipe connections •...
7 CONNECTIONS Tank positioning The tank must be placed on a stable floor, not too far from the water heater(s). NB! This floor must be able to hold the weight of the water filled tank(s). Water heater connections 1 – Hot Water / Supply 2 –...
The condensate trap must al- ways be filled to the edge with water, before replacing to the unit. Non Return valve All water heaters have a non-return valve installed in the gas-air mixing pipe just before the burner. Flue gas recirculation is prevented by the non-return valve.
Water quality In direct water heating appliances, the water flows directly through the heat exchanger of the water heater. Because all the time fresh water, containing dissolved minerals, is heated, scaling may occur. To prevent this, water quality must meet a number of standards. The water must meet the specifications below: Water temperature max.
Relevant variables: Specific Parameters Level (Default) Value Range (149) De_Air_Config 2: Installer 0: 24 hour pump 1: Dair enabled 2: Dair disabled De_Air_State 1: User Current state of the DAir function. 1: User DAir_Repetition_OnOff 2: Installer 0…255 Number of repeating ON/OFF. DAir_Number_Cycles 2: Installer 0…255...
8 THE HW SANITAIRY SYSTEM: INSTALLATION INSTRUCTIONS The HW system The CB-HW boilers are designed for use with one or more hot water tanks, because the boiler needs a minimum amount of water flow. To get an output temperature of 60°C, the temperature of the return should be within the range 43.5 –...
8.1.2 TAND ALONE CONFIGURATION The setup of the boiler system depends on the type of boiler selected: EWD tanks have a patented mixing device inside, which mixes cold fresh water with hot water from the tank to provide feed water with the right temperature to the boiler. The setup is shown in 8.1.3, figure 1 When other tanks are used, it is necessary to mix the cold fresh water with warm water from the tank, outside of the tank.
8.1.4 CB-HW NON-EWD SETUP WITH ONE TANK Fig. 2: Example of a combination of one water heater and one NON-EWD tank Explanation of the scheme: hot water recirculation is fed into the PUMP pipe from the water heater to the tank (2). If the tank has a separate NON- RETURN VALVE connection for recirculation, use that connection preferably.
8.1.5 ASCADE SET HW water heaters and tanks can be installed cascaded in a number of possible combinations according to the instructions below. SENSOR SYSTEM SEN- Example of a combination of three water heaters and two tanks For the installation of cascaded water heaters and tanks consult your supplier always. All requirements concerning pipe diameters and lengths and pump selection have to be calculated.
Diameters D1 ( = OUTLET and INLET of each water heater) (42 x 1,5 = Outside diameter mm x wall thickness mm e.g.) ΔT = 16.5°C ΔT = 12.5°C CB 85 HW 42 x 1.5 421.5 CB 105 HW 54 x 1.5...
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( = TANK in- and outlet) number of cascaded water heaters number of cascaded water heaters ΔT = 16.5 °C ΔT = 12.5 °C CB 85 HW 1 tank 42 x 1.5 54 x 1.5 64 x 2.0 42 x 1.5 54 x 1.5...
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( = Connection between water heaters and tanks)) number of cascaded water heaters number of cascaded water heaters ΔT = 16.5 °C ΔT = 12.5 °C CB 85 HW 1 tank 42 x 1.5 54 x 1.5 64 x 2.0 42 x 1.5...
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Pump number Pump type Grundfos UPMXL GEO 25-125N 180 Wilo Stratos Para Z 25/1-12 Table 4: Pump specifications Figure 1: Definition of V , the maximum free length between boilers and tanks Equivalent pipe length Copper Equivalent pipe length Equivalent pipe length pipe 90°...
8.1.7 LABORATED EXAMPLES To elaborate the examples in this section, the rules of §§ 8.1.1 and 8.1.5. are repeated below: 1. Codes to a one water heater installation: − There’s only one flow pipe and one return pipe. For the right diameter value see the table in § 8.1.1. 2.
8.1.9 CB 105 HW EWD500 WATER HEATERS WITH TWO TANKS Example 2 COLD IN 2 water heaters CB 105 HW 2 tanks EWD500 Water heater connections, encoding: Number the water heaters: water heater-1 is the water heater furthest from the tank(s), see picture. Encode the connection pipes directly connected to the water heaters: D1, see picture.
8.1.10 P UMP CONTROL The applied pump must be a bronze or stainless steel pump and controlled only by the CB-HW water heater control. If, for any reason, an external pump control is applied without written approval of Eco Heating systems then the complete warranty on the CB-HW water heater and all delivered parts will become invalid.
Water heater at flow min. required head min. required head for ΔT = 12.5 °C rate for water heater installation: +2 m.WC [m.WC] [m.WC] CB 85 HW 5.63 9.00 11.00 CB 105 HW 6.70 9.50 11.50 CB 125 HW 8.23 9.56...
10 FLUE GAS AND AIR SUPPLY SYSTEM General The water heater has a positive pressure flue system. For a single boiler, the available combined pressure drop for the inlet and outlet system is 200 Pa for the complete water heater range. The CB water heater is for either using outdoor combustion air or for installation using indoor combustion air.
A few examples of flue gas material suitable for ECO boilers: CE String for Plastic PPs: EN14471 T120 P1 W 2 O(30) I C/E L CE String for Stainless Steel: EN1856-1 T250 P1 W V2-L50040 O (50) When selecting flue gas systems, be aware that the minimum requirements are met. So only select flue gas materials having the same or better properties than this table.
The air supply duct can be made of PVC, PP or Stainless steel 10.1.2 C OMBUSTION AIR QUALITY Combustion air must be free of contaminants. For example: chlorine, ammonia and/or alkali agents, dust, sand and pollen. Remind that installing a water heater near a swimming pool, a washing machine, laundry or chemical plants does expose combustion air to these contaminants.
Corrosive Contaminants and Sources Products to avoid: Spray cans containing chloral/fluorocarbons Permanent wave solutions Chlorinated waxes/cleaners Chlorine-based swimming pool chemicals Calcium chloride used for thawing Sodium chloride used for water softening Refrigerant leaks Paint or varnish removers Hydrochloric acid/muriatic acid Cements and glues Antistatic fabric softeners used in clothes dryers Chlorine-type bleaches, detergents, and cleaning solvents found in household laundry rooms...
Water heater categories - types of flue gas systems. For C43 and cascade see manuals at the suppliers website: http://www.ecohs.nl/ Type according EN 15502-2-1: 2012 Performance Description C10(3) Closed or open Over pressure common flue system: Air supply from * Flue gas discharge through individual or shared out-side or room flue ducting built into the building.
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C(13)3 Closed Over pressure common flue system: Air supply * Flue gas discharge through individual or from out- shared flue ducting built into the building. side * Air supply inlet and flue gas outlet * Condensate is not allowed to go to the boiler. * Technical data: nominal T 85 °C...
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Type according EN 15502-2-1: 2012 Performance Description B23(P) * Roof terminal flue outlet Open * Without draught diverter Air supply from * Water heater room air supply. room * P = overpressure systems See: Typical examples - example C Notice: The installation room has to have sufficient air supply vents.
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Closed Type C43. A type C4 appliance incorporating a Air supply fan upstream of the combustion chamber/heat from outside exchanger. EHS.D0500.5010.400 Closed *Separate air supply duct Air supply *Separate flue gas discharge duct. from outside * Air supply inlet and flue gas outlet at different Flue outlet air pressure zones.
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Closed * Separate air supply duct from external wall. Air supply *Flue gas discharge through individual or Flue outlet from outside shared flue ducting built into the building. * Air supply inlet and flue gas outlet at different air pressure zones. * Condensate is not allowed to go to the boiler.
C63 certified The heater is C63 certified, the flue gas and air supply parts must have a separate CE marking according the building products regulations. The parts must be able to handle the condensate forming (W) and transport, overpressure (P1) and must have a minimum temperature class of T120.
Flue gas and air supply resistance table In the next section, for six typical flue gas outlet & air inlet configurations the maximum lengths of the straight pipes will be calculated. First all component resistance values are given in the next table: PARALLEL CB 85 CB 105...
Typical examples Twin pipe system with separate pipes for flue gas and air supply Twin pipe system with separate pipes and concentric roof terminal Single pipe for flue gas outlet only (air supply from water heater room) B23 Concentric pipe for flue gas/air supply (roof-mounted) Concentric pipe for flue gas/air supply (wall-mounted) Separate air supply duct &...
10.1.7 E B: T XAMPLE WIN PIPE SYSTEM WITH CONCENTRIC ROOF TERMINAL Calculation example with given lengths: checking resistance Water heater type: CB 125 Diameter: 100 mm Number Pa total Straight tube /m total 36.0 Bend 90° 21.9 43.8 concentric Roof terminal 100/150 66.7...
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Examples A (C63) and B (C33) maximum pipe lengths Concentric roof terminal Flue outlet Air inlet concentric/ parallel adaptor Example B Example A Example A (C63) water heater type → CB 85 CB 105 CB 125 CB 155 Diameter air pipe [mm] Diameter flue pipe [mm]...
10.1.8 E C: S XAMPLE INGLE FLUE GAS OUTLET IR SUPPLY FROM WATER HEATER ROOM Calculation example with given lengths: checking resistance Water heater type: CB 105 Diameter: 100 mm Number Pa total Straight tube m¹ total 52,0 Bend 45° 18,0 Bend 90°...
10.1.9 E D: C XAMPLE ONCENTRIC FLUE GAS AIR SUPPLY PIPE ROOF MOUNTED Calculation example with given lengths: checking resistance Water heater type: CB 85 Diameter: 100/150 mm. Pa total quantity Straight tube m total 31.9 Bend 45° 12.8 Bend 90°...
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Examples D and E maximum pipe lengths CONCENTRIC ROOF TERMINAL CONCENTRIC WALL TERMINAL EXAMPLE: D EXAMPLE: E Example D (C33) water heater type → CB 85 CB 105 CB 125 CB 155 Diameter concentric pipe [mm] 100/150 POSSIBLE POSSIBLE POSSIBLE Concentric roof terminal [mm] 100/150...
10.1.11 E F: S & (C53) XAMPLE EPARATE AIR SUPPLY DUCT FLUE DUCT IN DIFFERENT PRESSURE ZONE Calculation example with given lengths: checking resistance Boiler type: CB 105 Diameter: 100 mm. Pa total quantity Straight tube m total 24.0 Bend 45°...
11 COMMON FLUE CASCADING C10 Common flue gas systems. WARNING: If other than M&G flue gas materials are used, please contact your boiler supplier. If using C10 flue gas system for so called “CLV” system the following must be applied: A data plate shall be present on the connection interface to the common flue duct.
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Ad 2. CO detection and switch off module: Use a CO detection system which has an alarming and switching module. Use a switching module that has an Normally Closed (N.C.) contact. The heater safety loop will be extended with the CO detectors by connecting the N.C.
Ad 4. Combine all air intake terminals of the heaters Combine all air intake terminals of the heater, which do not necessarily have to be connected to the outside of the room. The purpose of a combined air intake is to have a controlled airflow towards the heaters and improve the air exchange in the room.
12 ELECTRICAL INSTALLATION 12.1 General • For operation, the water heater needs a power supply of 230 VAC/ 50Hz. • The wiring for the connections can be entered at the bottom of the water heater through the cable glands. • NOTICE: Before starting to work on the water heater, it must be switched off and the power supply to the water heater must be disconnected.
12.4 Explanation of the low voltage connections. DO NOT USE Do not connect wires to these terminals SYSTEM SENSOR Its mandatory (single and cascaded heaters) to use also a pipe strap-on sensor besides the tank sensor. This system (Strap-on) sensor has to be connected to connections 3-4 “System Sensor” (Cascaded heaters need one system sensor connected to the managing boiler only.) DHW SENSOR The tank sensor can be mounted in a bulb in the tank or glued to the tank dependent of the used type of...
12.5 Explanation of the mains voltage connections. 1-2-3-PE DO NOT USE Do not connect wires to these terminals 4-PE-5 DO NOT USE Do not connect wires to these terminals 6-PE-7 GENERAL or WATER HEATER PUMP Connections for the power supply of a water heater pump. (P1, see chapter 8.5 for detailed electrical specifi- cations).
12.8 Sensor availability The following table shows the sensor availability for all DHW control modes. Sensors not mentioned in the table are optionally available for other functions DHW Mode 0 N.A. 2 N.A. 3 N.A. 4 N.A. 5 N.A. 6 N.A. 7 N.A.
12.10 Programmable in- and outputs It’s possible to re-program some in- and outputs to other functions. To do this use below list and go to: Menu\settings\water heater settings\(installer password)\water heater parameters water heater pa- name default setting description terminal rameter (117) Prog.
13 WATER HEATER CONTROLLER AND DISPLAY. 13:56 Standby T3:40 °C 3.7 bar 50 °C DHW Store Setpoint ON/OFF. On/off switch. Switches electrical power to the boiler COMPUTER. Connector for computer cable RESET. Reset lockout error MENU. Enter the main menu ESCAPE.
Display and settings. This screen is active during power up and will remain active until communication with the Main Control (the AL- BUS) has been established. After communication has been established the following Status overview appears: The Status overview has the three different sections that show specific information: Header Middle section Footer...
Footer Shows Error/Warning messages when an Error or Warning is set in the Main Control, otherwise a quick menu is displayed where the user can quickly edit setpoints and enable/disable CH or DHW. Quick Menu / Parameter Description Value / Unit User level CH Control Enable/disable Central Heating...
13.1.3 P ROTECTED MENU ITEMS The display supports 3 different access levels; each with its own set of available menu items/parameters: Level Description 0: User Basic info and settings only that are accessible for everyone. 1: Installer Advanced information and settings; only to be accessed by an experienced installer/person. 2: Factory Highest level information and settings, only available/relevant for factory Engineers.
13.1.6 C HANGE LANGUAGE VIA THE MENU 1. From the Status Overview, press the MENU button once 2. Select “Settings” (press UP/DOWN ↑↓ to highlight/select) and press the CONFIRM button 3. Select “General Settings” (press UP/DOWN ↑↓ to highlight/select) and press the CONFIRM button 4.
Error logging. Error logging is available. This functionality is linked to the Real-Time Clock functionality. Errors will be logged for a stand-alone system or for a complete cascade system (based on the cascade settings). The PB display will monitor the error codes it receives from the water heater(s) and if an error code is a new error code the error will be stored in the error log.
13.1.9 S ERVICE REMINDER IMPLEMENTATIONS There are two types of service reminders: (Normal) Service reminder and Service shutdown (Normal) Service reminder The (normal) Service reminder will only show the Service reminder message on the screen and will log how long the service is overdue.
General The water heater controller is designed to function as a standalone control unit for intermittent operation on heating appliances with a premix (modulating) burner and a pneumatic air-gas system. Mains input 1 x 5AT, 230V Fuses Flame establishing period 2 seconds Safety time 5 seconds...
Ignition cycle During the ignition cycle multiple safety checks are active The table below shows the states of the burner ignition cycle, as shown in the diagram above: Burner state Actions ▪ INIT Controller initialization ▪ RESET Software reset (and initialization) ▪...
During the ignition cycle multiple safety checks are active: False flame detection If flame is detected at the end of the pre-spark period (Pre_Ignit) a lockout error will occur. Re-ignition If at the end of the safety period no flame is detected the control will go to Post_Purge to remove any unburned gas.
13.1.15 O N BOARD COLORS On the burner controller a basic on-board Human Interface (HMI) is available which consists of a push button and a 2 color (red/green) LED. These are used to indicate basic status information about the control. Status LED Reset button 900MN...
Demand for Domestic Hot water 13.1.18 DHW S ; DHW TORAGE WITH BULB AND STRAP ON SENSOR MODE Only use DHW mode 1 for a standalone water heater and for a Cascade water heater. Don’t use another DHW mode because the water heater will not work properly. Also, the heater is programmed as managing (Master) heater and a system sensor is needed next to a DHW sensor.
The water heater is stopped when the supply temperature rises above DHW_Store_Setpoint plus DHW_Store_Supply_Extra plus (37) DHW_Supp_Hyst_Up. Factory set: 60C + 0C + 4 = 64C The demand for the tank is ended when the tank-sensor rises above DHW_Store_Setpoint plus DHW_Store_Hyst_Up.
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After a cold boot of the control the Anti-legionella cycle is forced to start after 120 minutes. When the Anti-legionella request is active the measured sensor temperature must stay above Anti_Legionella_Setpoint – 3°C for at least Anti_Legionella_Burn_Time. When the measured sensor temperature drops below this level the Anti_Legionella_Burn_Time is reloaded The diagram below shows how the state machine for Anti-Legionella is implemented.
Display menu structure summary. Access Description: Menu structure Display: level 1. Central Heating (CH) User Enter the Central Heating (CH) menu 2. Domestic Hot Water (DHW) User Enter the Domestic Hot Water (DHW) menu 3. Information User Enter the Information menu 4.
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3.2 Boiler status min. max. Default unit Access Description: level Flow Temperature °C User Actual supply flow temperature Flow 2 Temperature °C User Actual supply 2 flow temperature Return Temperature °C User Actual return temperature DHW Temperature °C User Actual DHW temperature DCW Temperature °C User...
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4.1.1 Language min. max. Default unit Access Description: level English User Select the English language Italiano User Select the Italian language Pусский User Select the Russian language Hrvatski User Select the Croatian language User Select the Chinese language 中文 Français User Select the French language Español...
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4.1.5 Other settings min. max. Default unit Access Description: level Status Overview Settings User Configure which information is shown on the Status overview Modbus Address 0…255 User Select the Modbus communication address Modbus Stop bits 1 – 2 User Select the number of Modbus communica- tion stop bits 4.1.5.1 Status Overview min.
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4.2.1 Boiler parameters min. max. Default unit Access Description: Dis- level play CH mode Installer Set the CH mode CH Setpoint ⁰C Installer Set the CH setpoint Calc. Setp. Offset Installer Set the offset for CH mode 1 / 2 cal- ⁰C culated setpoint Set the minimum CH setpoint (0-10V...
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cont.: 4.2.1 Boiler parame- min. max. Default unit Access Description: Dis- ters level play DHW Tank PID I 1275 Installer Set the DHW tank PID I factor DHW/Tank Setpoint ⁰C Installer Set the DHW setpoint DHW Store Setpoint Installer Set the DHW storage setpoint ⁰C DHW Hysteresis Down Installer...
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4.2.2 Module Cascade Set- min. max. Default unit Access Description: Dis- tings level play Burner Address Master Installer Set the cascade burner address Permit Emergency Mode Yes/N Installer Enable/disable the cascade emer- gency mode Emergency Setpoint °C Installer Set the emergency mode setpoint Delay Per Start Next Mod.
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4.2.3 Boiler Cascade Settings min. Default unit Access Description: Dis- level play Boiler Address stand alone Installer Set the cascade boiler address Yes/N Enable/disable the cascade emer- Permit Emergency Mode Installer gency mode Emergency Setpoint °C Installer Set the emergency mode setpoint Set the delay time before the next 1275 Delay Per Start Next Blr...
14 TEMPERATURE PROTECTION The difference between Supply temperature and Inlet Temperature is continuously monitored. A too big difference can indicate a defective pump or a clogged heat exchanger. To protect the water heater, the burner controller reduces the input when the temperature difference ΔT becomes too high: At maximum water heater input ΔT is limited to 18 °C (32 °F) In between 18 °C (32 °F) and 26 °C (47 °F) water heater input modulates between minimum and maximum.
Lockout codes Lock- Error Description Cause Solving code E2PROM_READ_ER Internal software error wrongly programmed BCU reset BCU or replace BCU and or or PB display unit IGNIT_ERROR Five unsuccessful ignition no gas, wrongly adjusted check gas supply and adjust gas attempts in a row gas valve valve, reset BCU...
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Lock- Error Description Cause Solving code INSTRUCTION_ ER- Internal software error wrongly programmed BCU reset BCU or replace BCU and or or PB display unit ION_CHECK_ Internal software error wrongly programmed BCU reset BCU or replace BCU and or FAILED or PB display unit FLAME_OUT_...
Blocking codes Lockout Error Description Cause Solving code WD_ERROR_RAM Internal software error wrongly programmed reset BCU or replace BCU and or BCU or PB display unit WD_ERROR_ROM Internal software error wrongly programmed reset BCU or replace BCU and or BCU or PB display unit WD_ERROR_STACK Internal software error...
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Lockout Error Description Cause Solving code OUTDOOR_OPEN Outdoor sensor open malfunctioning outdoor check connection to BCU or sensor or not con- check resistance NTC sensor or nected or wrong CH- change CH-mode mode programmed RETURN_SHORTED Return sensor shorted malfunctioning return check connection to BCU or sensor or short circuit- check resistance NTC sensor...
Warnings Error no. Error Description Cause Solving CC_LOSS_COM- Cascade System: Managing cas- connection between Check wiring between boiler or MUNICATION cade control lost communication cascaded boilers is distance between boilers is to big with one of the depending. interrupted or wiring is broken APP_SELEC- Unknown appliance model se-...
16 CASCADING System setup NOTE: for proper functioning of the system, some settings have to be changed, see § 16.5.1 "Emergency mode". The water heater controller can control multiple water heaters in a cascade setup. The sensors (Heater sensor and system sensor) are equal to a stand-alone Heater and should only be connected to the controlling water heater.
Quick-guide cascade set-up Below a quick set-up, all settings are described in detail in the successive chapters Link the boilers with a 2-wire cable in parallel. Connect 20 on the managing boiler to 10 on the dependent boilers and connect 21 on the managing boiler to 11 on the dependent boilers.
Changes in parameter may only be carried out by a skilled commissioning/service engineer, who has had specific training for setting up the HW range water heaters. He will be able to check whether the installation functions correctly after the parame- WARNING ter change has been done.
Heater address Heater Operation Function of sensor input terminal 3-4 Stand-alone Not possible No function Master (default) boiler (managing) System sensor boiler (depending) No function boiler (depending) No function boiler (depending) No function boiler (depending) No function Select never “Stand alone” with a water heater. The water heater will not function right. A single water heater must be configured to Master 5.
– P 16.1.5 C ASCADE OWER BALANCE MODE Several different power control modes can be selected to operate the cascade system. • Power mode 0: Power control disabled, each water heater modulates based on the system setpoint. • Power mode 1: Power control algorithm to have a minimum amount of water heaters active.
2. Frost protection on water heater As last protection the controllers for the heaters can force themselves to burn. If the water heater supply/Inlet temperature drops below 5 °C the water heater starts at minimum power and con- tinues burning until the lowest of both supply and Inlet temperatures are above 15 °C. Specific Parameters Level (Default) Value...
17 SYSTEM TEST. For testing the system at fixed power rates, a system test can be activated via the Installer menu. Via the system test the water heater can be started without CH or DHW being present. The system test has priority. The following modes are available: System test mode Description...
18 COMMISSIONING THE WATER HEATER First: flushing the water heater with water After installation of the water heater the first step, before commissioning, is to flush the water heater and the whole installation with fresh water to remove pollution, debris and other materials that might cause a blocking. This must also be done with installations, where only the water heater is replaced.
Checking gas pressure Check the gas pressure available at the gas connection pipe of the water heater. Use the pressure nipple [3] of the gas safety valve for this measurement. Chapter 19.1.2 shows the position of the pressure nipple [3] Min.
19 ADJUSTING AND SETTING THE WATER HEATER Before carrying out any adjusting of the burner, carefully read this complete chapter. The initial lighting of the appliance must be performed by a licensed Gas Technician. Failure to follow these instructions may result in property damage or serious injury. As soon as the appliance has been fully installed (with regard to hydraulics, filling and de- WARNING aeration of installation, gas, flue gas, air intake, wiring etc.) according to the preliminary...
19.1.2 S ETTING SCREWS VENTURI AND GAS VALVES DRAWINGS Location of the setting screws: pres- High Fire: sure nipple screw [2] Fire: screw [1] High Fire: venturi adjustment screw: use hex key 4 mm High Fire: screw Low Fire: gas valve adjustment screw: Torx T40. Gas pressure nipple Low Fire: screw E93.1803.901 HW...
Adjustment procedures Procedure 1: adjust at High Fire Carry out the next steps: . → "Central Heating/ Information/ Settings/ System Test" 1. From status screen, press MENU 2. Press UP/DOWN ↑↓ to select "System Test" Press CONFIRM 3. Password needed to continue →...
Before starting conversion: close the gas supply and switch off the electrical power! Required parts: (Installation Manual “Accessories”) Use only parts/conversion kits obtained from Eco Heating Systems Groningen B.V. and intended to be Propane orifice CB 85 and CB 105 used with this particular water heater.
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3. Set parameter 92 and 93 The fan speed has to be changed in the software of the water heater according to the tables below:. fan speed high fire Fan speed low fire parameter 92 parameter 93 Water heater type 6500 1850 CB 85...
Serial number or send a copy to address: Installation date Cascade installation (Y/N) (YES/NO) Eco Heating Systems. Number of heaters P.O. Box 5145 Type of heaters in cascade 9700 GC Groningen The Netherlands Venting information...
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Water circulation & temperature regulation (for DHW) Piping diameter Total length of straight pipe between water heater& tank Number of elbows Number of tees Temperature rise between inlet and outlet after 5 min. cold-start operating max. power °C / °F Water temperature setpoint Test of Water Flow Switch (DHW)? (YES / NO)
20 INSPECTION, MAINTENANCE AND SERVICE. General For a good, safe and long-time operation of the water heater and to maintain warranty it is mandatory to carry out inspection, maintenance and service on the water heater at least once a year. Inspection, maintenance and service of the water heater should also be carried out on the next occasion •...
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Water leakage The water pressure of the installation should be more than1.0 bar and at a maximum of 8.0 bar in normal operation. When the water pressure drops below the minimum occasionally, there might be a water leak. Check the water heater and the complete heating installation for any water leakages and have these repaired.
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Burner Check the burner surface to see if it has damages, signs of rust and/or cracks. When the burner surface is dam- aged the burner must be replaced. The burner can be cleaned by using a soft (non-metallic) brush. The dust can be removed with a vacuum cleaner or pressurized air.
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Fiber braid replacement If the high temp braided rope is damaged and needs to be changed, it has to be replaced by new braids using the method described below. The high temp braided rope is maintained by silicone glue. - Remove electrodes. - Remove the braids by sliding under the periphery a thin tool to loosen the braids and remove it.
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Insulation The insulation of the heat exchanger (located on the rear wall inside the heat exchanger and burner door) must be inspected. If this insulation disc shows any signs of (water) damage or degradation it must be exchanged. Also check if there are any indications in the burner room of a high condensate level (caused by a blocked condensate trap) that might have wetted the rear wall insulation.
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Install the new insulation: - put two dots of glue silicone, temperature-resistant (Loctite 5366 or Otto seal S17), according to the location indicated. - make sure that the burner is in proper condition, remove any possible in- sulation residues on the burner - put a plastic protection skirt around the burner to protect the insulation from the burner.
When faults and abnormalities are found by the service technician during service and mainte- nance and these are not repairable, this information should be reported to the owner/end-user of the installation. Also the owner/end-user should be advised how to fix these faults and these faults should be reported in the service report / log file of the water heater.
20.1.2 M OUNTING THE BURNER DOOR IMPORTANT: Tighten in given order. Before mounting the burner door, make sure that its gaskets and insulation are in excellent shape. If any signs of damage or ageing are present, these torque value = 8 Nm parts must be replaced.
21 MAINTENANCE CHECKLIST Allowing the water heater to operate with a dirty combustion chamber will hurt operation. Fail- ure to clean the heat exchanger as required by the manual and dictated by the operating location could result in water heater failure, property damage or personal injury. WARNING Such product failures ARE NOT covered under warranty Periodic maintenance should be performed once a year by a qualified service technician to assure that all the...
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.
To turn off gas to the appliance 1. Turn off all electric power to the appliance if service is to be performed. 2. The main gas switch is situated underneath the heater in the gas supply line. to “OFF.” clockwise 3.
Display and buttons 13:56 Standby T3:40 °C 3.7 bar 50 °C DHW Store Setpoint On/off switch. Switches electrical power to the water heater Connector for computer cable Reset lockout error Main Menu Escape / Return to the status overview Right Enter a menu item or confirm selection in Status overview (when directly setting Actual setpoint or DHW setpoint) Left...
Screens and settings This screen is active during power up and will remain active until communication with the Main Control (the AL- BUS) has been established. After communication has been established the following Status overview appears: The Status overview has the three different sections that show specific information: Header Middle section Footer...
Footer Shows Error/Warning messages when an Error or Warning is set in the Main Control, otherwise a quick menu is displayed where the user can quickly edit setpoints and enable/disable CH or DHW. Quick Menu / Parameter Description Value / User Unit level...
Domestic Hot Water (DHW) DHW Store Setpoint 50.0°C Use “DHW Store Setpoint” to set the Hot Water temperature If you are inside the menu (or a menu item) and want to return directly to the Status overview press If you want to go back one step in the menu press BACK/LEFT ← . MENU or ESC Changing the Setpoint DHW.
Password Password 0 * * * Menu’s protected by a password are only accessible by the installer. Passwords are always customer specific and (for safety reasons) will be provided to the installer only! The following menu items require a password: Menu item Location inside menu Startup Settings...
Available Menu items Depending on the installed/programmed options by the installer following menu items could be visible. Menu / Parameter Description Value / Unit Central Heating (CH) Enter the Central Heating (CH) menu Domestic Hot Water (DHW) Enter the Domestic Hot Water (DHW) menu Information Enter the Information menu Settings...
23.1.9 W ATER HEATER ISTORY Menu / Parameter Description Value / Unit Successful Ignitions Display the number of successful ignitions Failed Ignitions Display the number of failed ignitions Flame Failures Display the number of flame losses Operation Days Display the total time in operation days CH Burner Hours Display the amount of burn hours for CH...
23.1.17 T IME ZONE SETTINGS Menu / Parameter Description Value / Unit Time Zone Correction Set the time zone correction Daylight Savings Time Select the daylight savings time mode 23.1.18 D ISPLAY SETTINGS Menu / Parameter Description Value / Unit Time Notation Select 24h or 12h time notation 24h/12h...
Error logging Errors will be logged for a stand-alone system or for a complete cascade system (based on the cascade settings). The display will monitor the error number(s) it receives from the water heater(s): new errors will be stored in the error log.
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Your distributor: Eco Heating Systems Groningen BV Contact: Visit: P.O. Box 5145 Rigaweg 10 9700 GC Groningen 9723 TH Groningen The Netherlands The Netherlands +31 50 5470470 sales@ecohs.nl www.ecohs.nl...
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