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ENGLISH

Mode 3

: continuous operation with fixed setpoint and night re-

duction with ambient thermostat (AT)

In this mode:

- External probe is not required.

- The OpenTherm (OT) communication is not enabled

and any OT thermostat connected is supplied but sig-

nals a “communication error”.

- Input 0-10V is not used.

- The Modbus communication is not enabled.

The fixed setpoint adjustment procedure is the same of mode

0. The only difference is that the request is always active and

the setpoint is decreased (night reduction) by the value de-

fined by the parameter 2133 upon the opening of the ambient

thermostat/heat request contact.

Par. No. Description

2103

Main Zone/Zone 1 setpoint in heating mode Par.

2001= 0 and 3.

The thermal unit adjustment determines the boiler

setpoint in heating mode, using the highest value

among the requests of all the active zones (Par.

1101, 1201, 1301).If Zone 1 is set as mixed, the

value set in parameter 1112 will be used as set-

point.

2023

Minimum heating setpoint.

2024

Maximum heating setpoint.

2133

Main Zone/Zone 1 setpoint night reduction in heat-

ing mode Par. 2001=2 or 3.

It defines by how many degrees the heating set-

point will be reduced at the opening of the ambient

thermostat (AT) contact.

The reduction of the delivery temperature affects

all the active heating zones and it can be used

when the AT terminal of every zone regulator is

jumpered.

T delivery

(°C)

T outside (°C)

Tset min (°C)

Tset max (°C)

Setpoint @TA=ON

Par. 2024

Par. 2023

Par. 2133

Par. 2103

Setpoint @TA=OFF

Mode 4

: operation with variable setpoint according to the value

of the input signal 0-10V

In this mode:

- External probe is not required.

- The OpenTherm (OT) communication is not enabled

and any OT thermostat connected is supplied but sig-

nals a “communication error”.

- The Modbus communication is not enabled. If a device

is connected to the Modbus, the values on the remote

device are not updated.

The parameters regulating such temperature are:

Par.

No.

Description

2023

It limits the minimum value that can be assigned to

the setpoint in heating mode.

2024

It limits the maximum value that can be assigned to

the setpoint in heating mode.

2025

It defines the delivery temperature minimum value in

heating mode (Par. 2001 = 4).

2026

It defines the delivery temperature maximum value

in heating mode (Par. 2001 = 4).

The operation set-point is adjusted on the basis of the following

curve:

T delivery

(°C)

Voltage (V)

Par. 2024

Par. 2025

Par. 2026

Par. 2023

Special functions

When a special function is active, a specific message is shown

on the display of the device control interface.

Frost protection

The anti-freeze protection function protects the system against

freezing.

When the anti-freeze function is active, the message “AFro” is

displayed.

The intervention modes are the following:

Boiler anti-freeze protection (Par. 2074):

If the tempera-

ture of the delivery probe of the device drops below

5°C the burner turns on and stays on until the deliv-

ery temperature exceeds 10°C (with the external probe

connected the protection activates only with external

temperature values < 10°C).

Heating circuit anti-freeze protection (Par. 2075):

If the

burner stays off for 6 consecutive hours the circulator of

the device will activate for 5 minutes. If the temperature

of the delivery probe of the device drops below 5°C the

burner turns on and stays on until the delivery temper-

ature exceeds 10°C (with the external probe connected

the protection activates only with external temperature

values < 10°C).

Содержание 20132486

Страница 1: ...ACQUAHOME R BLU INSTALLATION AND MAINTENANCE MANUAL ...

Страница 2: ...N 813 2013 Delegated Regulation EU N 814 2013 At the end of its life the product should be not be disposed of as solid urban waste but rather it should be handed over to a differentiated waste collection centre Dear heating engineer Congratulations on having chosen a T boiler You have selected a modern quality product that is designed to give dependable efficient and safe service and to provide co...

Страница 3: ...system schematic 17 Fuel connections 17 Discharge of combustion products 18 Technical specifications of stack 19 Connection to the stack 19 System filling and emptying 20 Water quality requirements 20 Filling 21 Emptying 21 Wiring diagram 22 Electrical connections 23 Menu navigation 25 Enter password 26 Navigation scheme 27 List of parameters 28 COMMISSIONING AND MAINTENANCE 34 Preparing for initi...

Страница 4: ... sure that he she is familiar with all the information required for safe system operation Precautions The operation of any appliance that uses fuel electrical power and water demands that a number of fundamental safety pre cautions be respected a Do not allow children or infirm persons to operate the system unsupervised a It is forbidden to use electrical devices or equipment such as switches appl...

Страница 5: ... calculates together with the delivery temperature the temperature difference between delivery and return t which al lows regulating the modulation of the circulator in heat ing mode b The intervention of a safety device indicates a potentially dangerous malfunction in the system Contact the manu facturer s Technical Assistance Centre immediately b Safety devices must only be replaced by the manuf...

Страница 6: ...valve 2 Main switch 3 Central heating flow 4 Central heating return 5 Control panel 6 Heating expansion reservoir 7 Burner 8 Drain cock 9 Pump 10 Flame inspection window 11 Boiler body 12 Serial number plate 13 Exhaust flue duct 14 Flue gas box cover 15 Lifting bracket 16 Automatic vent valve ...

Страница 7: ...ter screw 6 Air intake 7 Oil pump pressure adjuster screw 8 Pressure gauge fitting 9 Photoresistor 10 Flame pipe 11 Condenser 12 Motor 13 Heating element OIL PUMP 7 6 5 4 3 2 1 8 1 Suction port 2 Return 3 By pass screw 4 Pressure gauge fitting 5 Pressure adjuster screw 6 Vacuum gauge fitting 7 Solenoid valve 8 Auxiliary pressure measurement fitting ...

Страница 8: ...loss in standby mode Pstby 44 66 00 W 0 17 0 25 Annual energy consumption QHE 84 108 GJ Noise level sound power LWA 59 59 dB A Emissions with maximum output NOx referred to HCV 92 00 88 00 mg kWh NOx Class 3 3 n CO2 12 5 12 50 CO w a 10 10 ppm Flue gas T with nomi nal output 80 60 C 100 105 C Smoke scale 0 5 0 5 Flue gas mass airflow with max nominal output 10 12 g s Flue gas residual head with ma...

Страница 9: ...proximate average annual electricity consumption according to regulations 641 2009 622 2012 PUMP CURVES Residual head m kPa Q m h 0 1 2 3 4 5 6 7 m H 0 10 20 30 40 50 60 70 kPa p 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Q l s 0 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 2 4 2 6 2 8 Flow rate m3 h l s The curves refer to a density of 983 2 Kg m3 a water temperature of 20 C and a kinematic viscosity of 0 ...

Страница 10: ...10 ENGLISH Location of sensors ACQUAHOME R BLU 1 3 2 4 1 Delivery temperature probe 2 Return temperature probe 3 Safety thermostat 4 Pressure transducer ...

Страница 11: ...g the operation after a stop due to an anomaly 5 Navigation keys 6 Main switch located on the equipment rear wall Light Guide displaying STATUS DESCRIPTION Green blinking Thermal unit drain cycle and initialization in progress after the power supply reset Steady green Thermal unit on Steady red Thermal unit in alarm mode Red blinking Thermal unit in lock out mode ...

Страница 12: ...e Installer menu 4 Icon displayed when the burner of the equipment is on The icon will be marked with a cross in case of Permanent or Temporary error 5 Icon displayed when the climatic mode operation is active Par 2001 1 or 2 6 Celsius Fahrenheit temperature 7 Displays current value 8 Displaying of system pressure or parameter number or external temperature 9 Icon displayed when the circulator is ...

Страница 13: ...mediately The following items are delivered in a plastic bag 1 inside the boiler User manual Installation and maintenance manual Hydraulic test certificate Energy label Conventional warranty conditions Positioning of labels A 1 A Packing label b The instruction manual is an integral part of the appli ance therefore it should be read and stored carefully b Keep the documentation envelope in a safe ...

Страница 14: ...e pallet A remove the cardboard packing and non scratch cloth a Do not dispose of packaging material into the environ ment or leave it within the reach of children since it can become a potential hazard Dispose of packaging mate rial in compliance with applicable legislation Once the packaging has been removed remove the fixing screw 2 and extract the front panel 1 1 2 Locate the bag containing th...

Страница 15: ...es that must be respected in order to allow proper maintenance of the boil er 1 m 1m 1 m 0 5 m 0 5 m Installation in older systems and systems requiring modernisation When installing these boilers in older systems or systems re quiring modernisation always perform the following checks Make sure that the flue is able to withstand the tem perature of the combustion gases and that it has been designe...

Страница 16: ...N ACQUAHOME R BLU UM A 650 mm B 450 mm C 39 mm D 135 mm E 486 mm MI system delivery line 1 Ø RI system return line 1 Ø SC safety valve drain 21 Ø mm Sf automatic drain valve drain 11 Ø mm Boiler water circuit RI MI 2 A 3 4 1 5 6 7 D C B 1 Boiler body 2 Automatic vent valve 3 Pump 4 Safety valve 5 Burner 6 Expansion vessel 7 Drain cock A Safety thermostat B Delivery temperature probe C Pressure tra...

Страница 17: ...ivery pipe must be connected directly on the filter 1 accessory the return pipe to the preset union 2 Make sure that these connections are oil tight 2 1 A B 3 Description ACQUAHOME R BLU Fittings 2x3 8 M Ø A 40 mm B 135 mm If the oil feed system is in negative pressure the return line must reach the same height as the suction line This avoids having to install a bottom valve which would be essenti...

Страница 18: ...6 20 H Height difference L Maximum length of suction hose Øi Internal diameter of hose 1 Suction port 2 Return 3 By pass screw 4 Pressure gauge fitting 5 Pressure adjuster screw 6 Vacuum gauge fitting 7 Solenoid valve 8 Auxiliary pressure measurement fitting 7 6 5 4 3 2 1 8 Discharge of combustion products The flue pipe 1 and the connection to the stack 2 must be made in conformity to the laws sta...

Страница 19: ...s shown in the figure to drain off any condensate forming in this section of flue The diameter of the stack must always be greater than that of the flue pipe from the boiler s exhaust fitting To change direc tion use a T section with an inspection cap to permit easy ac cess for cleaning inside the pipe After cleaning always make sure that inspection caps are replaced tightly and that their seals a...

Страница 20: ...ystem A chemical treatment system must be provided for this water The heat transfer fluid water for the central heating circuit must conform to the quality parameters given in the following table REFERENCE VALUES pH 6 8 Electrical conductivity less than 200 μS cm 25 C Chlorine ions less than 50 ppm Sulphuric acid ions less than 50 ppm Total iron less than 0 3 ppm Alkalinity M less than 50 ppm Tota...

Страница 21: ...ing circuit shut off cocks NOTE The system is de aerated automatically through the au tomatic vent valve The drain pipe of the drain valve must be connected to a suitable collection system Emptying Before emptying Set the main switch of the system to OFF and the main switch of the equipment to 0 Close the water supply shut off cocks To empty the boiler connect a rubber tube A in tø 12mm to the hos...

Страница 22: ...g p p bl bl L 1 1 R PCC MV PC Thermal unit circulation pump L Light guide RE Interface relay SR Return probe SM Flow probe TS Safety thermostat TP Pressure transducer FU Mains power fuse 6 3 A T IG Main switch MO1 Terminal strip DSP Display TA Room thermostat OT OpenTherm 0 10V Input 0 10V P Timer SB Boiler sensor SE Outdoor sensor MO2 Terminal strip MG Managing Zone Mod bus MD Modbus Depending MO...

Страница 23: ...omatic shut off device ASD and the relay RE must be chosen for a power supply of 230Vac Electrical connections The ACQUAHOME R BLU boiler is fully cabled in the factory The only connections required for its installation are those of the mains power supply room thermostat and other optional system components Proceed as follows to access the control panel terminals open the control panel door and re...

Страница 24: ...disconnecting switch in compliance with CEI EN stand ards contact opening of at least 3 mm Respect the connection L line N neutral Keep the earth conductor 2 cm longer than the power supply conductors Use cables with a section greater than or equal to 1 5 mm2 complete with cable terminal caps Refer to the wiring diagrams in this manual for all elec tric operations Connect the equipment to an effec...

Страница 25: ...setpoint when active available 3 Raise the DHW set point when available 4 Decrease the DHW set point when available 5 ENTER RESET Enters into MENU mode If pressed for more than 5 seconds it resets a permanent error Loc Additional functions Button Function with It accesses enable disable heating function mode It accesses enable disable DHW production function mode b For more information see paragra...

Страница 26: ...ter change Enter password To access INSTALLER parameters it is necessary to enter the password Press the key ENTER RESET and select Code by using the keys and Press the key ENTER RESET to confirm Press the keys and to increase or decrease the value of the blinking digit Once the required value is obtained press the key EN TER RESET to confirm the entered value After entering the INSTALLER password...

Страница 27: ...27 ENGLISH Navigation scheme Basic display mode End user mode installer mode Enter password Bar C or or Example of parameter setting change confirmed change canceled or or or ...

Страница 28: ...03 See Par 2203 C U 0000 033 Quick adjustment of Zone 3 heating setpoint in 0 and 3 heating modes By connecting the zone control accessory this param eter can be used to quickly change Zone 3 setpoint This parameter simultaneously modifies the value of Par 2303 See Par 2303 See Par 2303 See Par 2303 C U 0000 047 Quick adjustment of DHW setpoint with heater See Par 2047 C U 0000 048 Quick adjustmen...

Страница 29: ...r restart It defines the temperature difference below which the burner restarts regardless of the elapsed time indicated in Par 2009 0 20 16 16 C I 2000 2025 Minimum 0 10V input voltage in heating mode Par 2001 4 0 10 1 1 V I 2000 2026 Maximum 0 10V input voltage in heating mode Par 2001 4 0 10 9 9 V I 2000 2080 Anti legionella function it starts without RTCC 0 deactivated 1 daily 2 weekly 0 2 1 1...

Страница 30: ...stops the request in heating mode when the external temperature is higher than this setpoint 0 35 20 20 C I 2000 2130 Parallel shift of direct Zone Zone 1 climatic curve 10 10 0 0 C U 2000 2131 Direct Zone Zone 1 mild climate temperature compen sation 0 20 0 0 C I 2000 2132 Direct Zone Zone 1 ambient temperature nominal value When an OpenTherm OT ambient thermostat is con nected to the thermal uni...

Страница 31: ...ure is greater than this setpoint 0 35 20 20 C I 2000 2230 Parallel shift of direct Zone Zone 1 climatic curve 10 10 0 0 C U 2000 2231 Zone 2 mild climate temperature compensation 0 20 0 0 C I 2000 2232 Zone 2 ambient temperature nominal value When an OpenTherm OT ambient thermostat is con nected to the zone control accessory this parameter is not used 5 35 20 20 C I 2000 2234 Compensation factor ...

Страница 32: ...e 0 240 140 140 sec I 2000 2336 Zone 3 mixing valve PID P 0 99 5 5 I 2000 2337 Zone 3 mixing valve PID I 0 99 10 10 I 2000 2338 Zone 3 valve operating time 0 255 2 2 I 2000 2339 Supply Extra Only for MIX Zone 0 20 5 5 C I 2000 2340 Zone 3 circulator post circulating time 30 30 sec I 2000 2341 Zone 3 delivery overtemperature protection 0 100 55 55 C I 2000 2342 Zone 3 overtemperature control time 0...

Страница 33: ... 40 82 80 80 C I 2000 2062 T boiler switch off setpoint for DHW production 0 3 1 1 C I 2000 2063 T boiler delivery boiler return 5 40 15 15 C I 2000 2074 Burner anti freeze protection 0 NO 1 Yes 0 1 1 1 I 2000 2075 Heating circuit anti freeze protection 0 NO 1 Yes 0 1 1 1 I 2000 2076 DHW anti freeze protection 0 NO 1 YES 0 1 1 1 I 2000 2077 DHW anti freeze protection time 0 24 12 12 hours I 2000 2...

Страница 34: ...bove pro ceed as follows to start up the boiler for the first time set the main switch of the system to ON and the main switch of the equipment to I Upon switching on the display of the control interface of the device shows the following pages in sequence HEAT Bar Bar C F Psi Psi OUTSIDE Firmware version of the thermal unit interface In the example the message indicates a firmware version 0 Commun...

Страница 35: ...n stand by before switching the main switch Example of generator stand by display in heating only mode external probe not connected Bar C Set the room thermostat to the required temperature 20 C or if the system has a timer or timer thermostat make sure that this is switched ON and adjusted to the required temperature 20 C Adjustment of heating setpoint Press the key or to display the current valu...

Страница 36: ...a fixed setpoint defined in Par 2103 The setpoint value can be directly set without having to ac cess the list of parameters as indicated in paragraph Menu navigation on page 25 The setpoint can be set within a range defined by par 2023 minimum and 2024 maximum as indicated in the figure The parameters regulating such temperature are Par No Description 2103 Main Zone Zone 1 setpoint in heating mod...

Страница 37: ...of external temperature Parameter 2125 installer level Between seasons in certain days the day external temper ature may exceed the limit threshold set in parameter 2125 summer winter switching in this case the heat request in heating mode is interrupted even if the ambient temperature has not yet reached the target setpoint It is possible to in crease the value of Par 2125 preventing the request ...

Страница 38: ...on is not enabled and any OT thermostat connected is supplied but sig nals a communication error Input 0 10V is not used The Modbus communication is not enabled The equipment works with a variable setpoint defined by the climatic curve which can be set as described in mode 1 ac cording to the external temperature The heat request is active regardless of the closing of the ambient thermostat heat r...

Страница 39: ...he OpenTherm OT communication is not enabled and any OT thermostat connected is supplied but sig nals a communication error The Modbus communication is not enabled If a device is connected to the Modbus the values on the remote device are not updated The parameters regulating such temperature are Par No Description 2023 It limits the minimum value that can be assigned to the setpoint in heating mo...

Страница 40: ...e Par 200 0 If the delivery probe of the device reaches 82 C maximum operating temperature the burner turns off Attention Hot water runs through the system Danger of scald ing with hot water Ignition failure If an ignition or operating anomaly occurs the thermal unit dis play will show a text message small digit and a number large digit which vary according to the anomaly detected For a detailed d...

Страница 41: ...charge duct sufficiently far from curves and elbows For the hole size and its correct positioning on the discharge duct minimum or maximum distance from the equipment outlet to be observed refer to the regulations in force b Always plug the sampling hole after analysing the flue gases Burner control and adjustment ADJUSTING PUMP PRESSURE Turn the adjuster screw 1 to achieve the pressure setting sp...

Страница 42: ...rol box remains in waiting mode for t1 1 sec t2 Initialisation verification time time following startup of main power supply 3 5 sec t2l Checks extraneous light or parasite flame during t2 waiting mode for t2l then lock out the motor does not start 25 sec t3 Pre purging time the fan motor runs then the fuel oil valve opens 15 sec t3l Checks extraneous light or parasite flame during pre purging con...

Страница 43: ...ontrol box goes into lockout at the end of t3l 25 sec t3i Spark pre ignition time 2 sec ts Safety time 5 sec t4i Total spark ignition time 10 sec t4l Valve deactivation reaction time following flame failure 1 sec t5i Spark post ignition time 3 sec Minimum time to reset the control box using reset button 0 4 sec tr Cycle repetition max 3 repeats of the com plete ignition sequence if flame fails dur...

Страница 44: ...sis lockouts Description of lockout Lockout time Presence of extraneous light during standby After 25 seconds Pre heating not finished After 600 seconds Presence of extraneous light during pre purging After 25 seconds Detection of extraneous light during post purging After 25 seconds Flame not detected by end of safety time 5 seconds after the activation of the fuel oil valve Flame failure during ...

Страница 45: ...there is no new heat re quest When the contacts of the heat request thermostat open the burner controller shuts down the flame and shuts off the oil supply Post purging does not occur after a lockout if a heat request is cancelled during pre purging Post purging occurs if a heat request is cancelled during safety time if a heat request is cancelled during normal functioning NOTE If extraneous ligh...

Страница 46: ... led Blinking 2 times 0 2s ON 0 2s OFF Release the button The burner shuts down and restarts The burner shuts down then restarts automatically Each shut down test resets zeroes the ignition cycle count No LEDs flash when you exit the shutdown test menu POST PURGING Post purging time can be set to a maximum of 120 seconds To set post purging time proceed as follows Post purging programming sequence...

Страница 47: ... Release the button The type of lockout is displayed for 10 seconds Lockout type display time can be extended for another 10 seconds by pressing the reset button again while the lockout type is being displayed Always wait 1 second between every press and release of the button to ensure correct interpretation of the command SHUTDOWN TEST If the reset button is pressed and held down for a time betwe...

Страница 48: ...is indicated by the LED flashing see paragraph Fault diagnosis lockouts on page 45 If an error is detected before a heat request is made the burner does not start up and the error is signalled If an error is detected during pre purging the burner remains in purge mode and the error is signalled If no error is detected during normal functioning the burner continues to function normally The burner s...

Страница 49: ...ler level from Par 9001 to Par 9010 Permanent Errors Message Error No Description Loc E010 Ignition failure Loc E020 Safety thermostat tripped Loc E040 Low water pressure Load the system Loc E042 Pressure transducer not connect ed or read value outside of the permitted range Temporary Errors Message Error No Description Err E046 Pressure decreasing alarm 0 8 temporary Err E060 Domestic hot water p...

Страница 50: ...he surfaces of the heat exchanger in order to keep the boiler efficient and economical b All cleaning operations MUST be performed under the following conditions boiler cold boiler switched OFF Suitable personal protection equipment Perform the following operations before beginning any mainte nance or cleaning set the main switch of the system to OFF and the main switch of the equipment to 0 close...

Страница 51: ...G THE BLAST TUBE Proceed as follows to remove the blast tube Remove the screws 1 and remove the blast tube disconnect the high voltage cable 2 1 2 b With the blast tube removed check its front edge to make sure that it is smooth free from deposits burns and dents Reverse the above steps to reassemble REPLACING THE NOZZLE Remove the blast tube then proceed as follows Clean the electrodes without re...

Страница 52: ...e the two screws 4 2 1 3 4 4 b This operation must be performed with the burner turned off and mains power disconnected CLEANING THE FAN b Clean the inside and the rotor blades of the fan unit to remove any build up of dust Accumulated dust reduces the air flow and therefore reduces combustion efficiency leading to increased emissions b Take care not to damage or block the fan while perform ing cl...

Страница 53: ... of cleaning refit the turbulators in the flue gas pipes making sure that they are correctly seated replace all removed components in the opposite order b Before repositioning the flue gas chamber closure re place the expanded silicone seal External cleaning Clean the boiler s casing panels and control panel with a soft cloth damped in soapy water To remove marks from the boiler casing use a cloth...

Страница 54: ...ody Clean Burner capacity insufficient Check and adjust the burner Boiler temperature setpoint Check correct functioning Check the temperature setting The generator triggers a thermal safe ty block Safety thermostat delivery overtemper ature Check correct functioning Check the temperature setting Check the electrical wiring Check the position of the sensor bulbs No water Check the bleed valve Chec...

Страница 55: ...essure and flow rate Check the air flow Change the nozzle Check solenoid valve coil The burner starts up only after late ignition OFF Ignition electrodes incorrectly positioned Adjust ignition elec trodes as instructed in this manual Air flow rate too high Adjust air flow rate as instructed in this manual Nozzle dirty or worn Replace RECYCLING AND DISPOSAL The device is primarily composed of Mater...

Страница 56: ...ilade Riello 7 37045 Legnago VR www thermital it The manufacturer strives to continuously improve all products Appearance dimensions technical specifications standard equipment and accessories are therefore liable to modification without notice ...

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