Ariston ACO 35 MFFI Скачать руководство пользователя | Manualshive

Страница: 25 / 72

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25

Legend:

A

-

ON/OFF button

B

-

Multifunction display

C

-

Reset button

D

-

Green LED (Indicates burner on)

E

-

Comfort function LED (yellow)

F

-

Red LED (indicates lockout)

G

-

COMFORT button

H

-

Central Heating temperature adjustment

I

-

Programming key +

L

-

Programming key -

M

-

Menu button

N

-

Domestic Hot Water temperature adjustment

O

-

EEPROM key

CN1 =

FAN

1:

Start of coil (black)

2:

End of coil (brown)

3:

“Hall” sensor power supply 12V (red)

4:

“Hall” sensor input (white)

5:

“Hall” sensor neutral (blue)

6:

Not used

CN2 = FLAME SENSOR

CN3 = Earth

CN4 =

POWER SUPPLY

1:

Live (brown)

2:

Neutral (blue)

CN5 =

EQUIPMENT
CONNECTIONS

1:

Gas valve neutral (blue)

2:

Gas valve live (brown)

3:

Not used

4:

Pump

(V1) live (red)

5:

Pump

(V2) live (black)

6:

Pump

(ON/OFF) live (

brown

)

7:

Pump

neutral

(blue)

8:

3-way valve (C.H.) (red/black)

9:

3-way valve (D.H.W.)

(brown)

10:

3-way valve

Neutral (blue)

11: Spark generator Neutral (black)
12: Spark generator live (black)

CN6 = INTERFACE PCB

(OPTIONAL - see Section 2.12)

Accessories:
External sensor
Remote Control CLIMA MANAGER
Secondary outlet

(

see Section. 2.12

)

CN7 = DISPLAY

1: Power 5V
2: Display return
3: Display transmission
4: Earth

CN8 = SENSOR CONNECTOR

1: Central Heating flow sensor (white)
2: Central Heating return sensor (white)
3: Not used
4: DHW flow switch (grey)
5: DHW sensor (grey)
6: Not used
7: Not used
8: DHW flow switch earth (grey)
9: DHW sensor earth (grey)
10: C.H. flow sensor earth (white)
11: C.H. return sensor earth (white)
12: Not used

CN9 = ROOM THERMOSTAT
(OPTIONAL - see Section 2.12)

CN10 = UNDERFLOOR HEATING

SAFETY THERMOSTAT
(OPTIONAL - Section 2.12)

CN11 = TIME CLOCK

(see Section 2.12)

CN12 = SENSOR CONNECTOR

1: Not

used

2: Not used
3: Low water pressure switch
4: Low water pressure switch earth
5: Overheat thermostat
6: Overheat thermostat

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Содержание ACO 35 MFFI

Страница 1: ...Country of destination GB IE Installation and Servicing Instructions Type C Boilers ACO 35 MFFIG C N 47 116 35 LEAVE THESE INSTRUCTIONS WITH THE END USER SERIES ...

Страница 2: ...ES 48 5 SEQUENCE OF OPERATION 51 5 1 CENTRAL HEATING MODE 51 5 2 DOMESTIC HOT WATER MODE 51 6 MAINTENANCE 52 6 1 GENERAL REMARKS 52 6 2 CLEANING THE PRIMARY EXCHANGER 52 6 3 CLEANING THE CONDENSATE TRAP 52 6 4 OPERATIONAL TEST 52 7 SERVICING INSTRUCTIONS 53 7 1 REPLACEMENT OF PARTS 53 7 2 TO GAIN GENERAL ACCESS 53 7 3 ACCESS TO THE COMBUSTION CHAMBER 54 7 3 1 REMOVING THE FAN 54 7 3 2 REMOVING THE...

Страница 3: ...protective clothing when installing and working on the appliance i e gloves Before connecting the appliance check that the information shown on the data plate and the table in Section 1 2 page 4 comply with the electric water and gas mains of the property You will find the data plate on the inside of the casing The gas with which this appliance operates is also shown on the label at the bottom of ...

Страница 4: ...Temperature max min High temperature C Heating Temperature max min Low Temperature C Central Heating Domestic Hot Water Temperature approx max min C Specific Flow Rate 10 minutes T 30 C l min D H W Flow Rate T 25 C l min D H W Flow Rate T 35 C l min D H W Minimum Flow Rate l min Pressure of Domestic Hot Water max min bar Domestic Hot Water Nominal Pressure Natural Gas G20 mbar Consumption at Nomin...

Страница 5: ...s Mixer 8 Gas Valve 9 P C B Box 10 Diverter Valve 11 Condensate Discharge 12 Condensate Trap 13 Low Water Pressure Switch 14 Domestic Hot Water Temperature Probe 1 3 OVERALL VIEW FIG 1 0 15 Secondary Heat Exchanger 16 Domestic Hot Water Flow Switch 17 Circulation Pump with Automatic Air Release Valve 18 Safety Valve 3 bar 19 Automatic By pass 20 Fan 21 Ignition Electrode 22 Silencer 23 Spark Gener...

Страница 6: ...BS 5449 1990 Forced circulation hot water systems BS 6798 2000 Installation of gas fired hot water boilers of rated input not exceeding 70kW BS 6891 2005 Installation of low pressure gas pipe up to 28mm BS 7671 2001 IEE wiring regulations BS 4814 1990 Specification for expansion vessels BS 5482 1994 Installation of L P G I S 813 Domestic Gas Installations 2 2 SITING THE APPLIANCE The appliance may...

Страница 7: ...LUE CONNECTION If the appliance is to be fitted on a wall of combustible material the wall must be protected by a sheet of fireproof material If the appliance is to be fitted into a timber framed building guidance should be sought from the Institute of Gas Engineers document REF IGE UP 7 2 5 1 Drill the wall and plug using those supplied with the connections kit position the hanging bracket and se...

Страница 8: ...2 3 The appliance electrical connections are situated inside the electrical box see Section 2 12 IMPORTANT In the event that the power supply cable must be changed replace it with one with the same specifications Make the connections to the terminal board located within the control panel as follows The yellow green wire should be connected to the terminal marked with the earth symbol make sure to ...

Страница 9: ...IBBED PIPE The discharge pipe must be terminated in a suitable position i Connecting in to an internal soil stack at least 450 mm above the invert of the stack A trap giving a water seal of at least 75 mm must be incorporated into the pipe run there also must be an air break upstream of the trap ii Connecting into the waste system of the building such as a washing machine or sink trap The connecti...

Страница 10: ... also be used to reduce the risk of scale forming in the domestic side of the heat exchanger UNDER FLOOR HEATING SYSTEMS In the event of an under floor heating system fit a safety thermostat on the boiler flow instructions for wiring the thermostat to connection SP on the PCB can be found in Section 2 12 This thermostat should be positioned at a safe distance from the boiler to ensure the correct ...

Страница 11: ...rosion sludge damaging the boiler and system If anti freeze substances are to be used in the system check carefully that they are compatible with the metals used in the circuit MTS suggests the use of suitable anti freeze products such as Fernox ALPHI 11 which will prevent rust and incrustation taking place Periodically check the pH of the water anti freeze mixture of the boiler circuit and replac...

Страница 12: ... L Fixed by vertical flue terminal FLUE SYSTEM The provision for satisfactory flue termination must be made as described in BS 5440 1 The appliance must be installed so that the flue terminal is exposed to outdoor air The terminal must not discharge into another room or space such as an outhouse or lean to It is important that the position of the terminal allows a free passage of air across it at ...

Страница 13: ...clamp seals and screws supplied Fig 2 12 secure the elbow to the boiler The 1 metre horizontal flue kit 3318073 supplied is suitable for an exact X dimension of 815mm Measure the distance from the face of the external wall to the face of the flue elbow X Fig 2 9 this figure must now be subtracted from 815mm you now have the total amount to be cut from the plain end of the flue Draw a circle around...

Страница 14: ...p and screws provided To fit extensions or elbows it is first necessary to ensure that the lip seal is fitted correctly into the inner flue once verified it is simply necessary to push them together no clamps are necessary to secure the flue components Before proceeding to fit the flue ensure that the maximum flue length has not been exceeded See the tables on Page 19 and that all elbows and bends...

Страница 15: ...nifold and secure with the clamp fit the vertical adaptor onto the vertical starter kit note there is no need to use a clamp to secure this as it is a push fit connection the vertical flue kit must then be inserted through the roof flashing this will ensure that the correct clearance above the roof is provided as the terminal is a fixed height Should extensions be required they are available in 1 ...

Страница 16: ...iting the twin flue pipe the air intake and exhaust terminals must terminate on the same wall the centres of the terminals must be a minimum of 280 mm apart and the air intake must not be sited above the exhaust terminal refer to Fig 2 20 The air intake pipe can be run horizontally however the terminal and the final 1 metre of flue must be installed either horizontally or with a slight fall away f...

Страница 17: ... and exhaust are run to the left it will be necessary to reduce the height of the air intake by cutting 20mm from the base of the air intake elbow see Fig 2 18 Coaxial Systems Twin Pipe Systems Exhaust Type Type 1 Type 1 Types 2 3 Type 4 Type 5 Maximum Extension Exhaust Air m 4 Horizontal 16 Horizontal 4 Vertical 16 Vertical 54 Air Intake Exhaust Equal Lengths 27 and 27 metres 1 56 Air Intake 1 Me...

Страница 18: ...18 EXHAUST AIR INTAKE AIR INTAKE AIR INTAKE MUST NOT BE FITTED ABOVE THE EXHAUST Fig 2 20 NOTE DRAWINGS ARE INDICATIVE OF FLUEING OPTIONS ONLY TYPE 1 TYPE 5 TYPE 4 TYPE 3 TYPE 2 Fig 2 19 ...

Страница 19: ...a code 706348 To fit the digital clock it is necessary to proceed as follows 1 Remove the outer casing 2 Open the control panel see fig 2 20 3 Unplug the electrical connection from the PCB and unscrew the four screws Fig 2 21 4 Remove the time clock Fig 2 22 5 Connect the wires supplied with the clock to the digital time clock as shown in Fig 2 23 6 Reassemble in reverse order NOTE THE MECHANICAL ...

Страница 20: ... by the clock Put the switch B to I to select permanent operation or to 0 to turn the central heating off permanently 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 1 0 1 0 1 11 1 1 21 2 13 13 1 41 4 1 51 5 1 6 1 6 1 7 1 7 1 8 1 8 19 19 2 0 2 0 2 1 2 1 2 2 2 2 23 23 24 24 9 9 6 6 12 12 I A C B Fig 2 25 Operating the time switch The steps marked with the symbol are necessary to carry out a switching program P...

Страница 21: ...rrectly activate all subsequent switching instructions Manual Override Switch With the you can change the current setting at any time The switching program already entered is not altered Reading the programmed switching times Pressing the Prog key displays the programmed switching times until the first free memory location appears in the display If you now press the Prog key once again the number ...

Страница 22: ...or heating SP CN 9 Room Thermostat TA CN 11 Time clock CN 6 Interface PCB FIG 2 28 CONNECTION OF ROOM THERMOSTAT OR EXTERNAL TIME CLOCK a Insert the thermostat cable through the cable grommet and fasten it by means of the cable clamp provided b Connect the thermostat wires to the terminal block CN9 Fig 2 27 Diagram A c If a remote time clock is to be fitted supply 240V from the same spur as the bo...

Страница 23: ...external sensor plug the interface PCB into connector CN6 on the main PCB see Fig 2 28 and 2 29 To connect between the interface PCB and the external sensor it will be necessary to use 2x 0 5mm2 cable connected to the two terminals on the external sensor and to Terminal B SE Fig 2 28 on the interface PCB Instructions on the activation and setting of the outdoor sensor are detailed on pages 37 and ...

Страница 24: ...lve Circulation pump Diverter valve Spark generator Low water pressure switch Overheat thermostat C H Flow temperature probe C H Return temperature probe D H W flow switch D H W temperature probe Room thermostat Optional Underfloor Heating Safety thermostat Optional Az Bl Brn Rd Wh Bi Brn Gry Blk Blk BlK Pnk Bl Rd Wh Gry Blk Gry Pnk Bl Bl Pnk Az AZ Wh Wh Rd Wh Brn Blk CN1 CN12 CN5 7 8 9 10 11 12 C...

Страница 25: ... C H red black 9 3 way valve D H W brown 10 3 way valve Neutral blue 11 Spark generator Neutral black 12 Spark generator live black CN6 INTERFACE PCB OPTIONAL see Section 2 12 Accessories External sensor RemoteControlCLIMAMANAGER Secondary outlet see Section 2 12 CN7 DISPLAY 1 Power 5V 2 Display return 3 Display transmission 4 Earth CN8 SENSOR CONNECTOR 1 Central Heating flow sensor white 2 Centra...

Страница 26: ...Motorised valve 11 Low water pressure switch 12 Domestic hot water temperature probe 13 Condensate Trap 14 Drain valve 15 Automatic By pass 16 Domestic hot water flow switch 17 Pressure gauge 18 Safety valve 19 Circulation pump with automatic air release valve 20 Central heating return temperature probe 21 Expansion vessel A Central Heating Flow B DHW Outlet C Gas Inlet D Cold Water Inlet E Centra...

Страница 27: ...e of air is visible Purge the air from the pump by unscrewing the pump plug and also manually rotate the pump shaft in the direction indicated by the pump label to ensure the pump is free IMPORTANT OPEN THE MANUAL AIR VENT AND ENSURE THAT THE PRIMARY EXCHANGER IS FREE OF AIR See FIG 3 0 Refit the pump plug Continue filling the system until at least 1 bar registers on the pressure gauge Inspect the...

Страница 28: ...h as Fernox MB 1 BetzDeaborn Sentinel X100 or Fernox System Inhibitor is recommended to prevent corrosion sludge damaging the boiler and system If anti freeze substances are to be used in the system check carefully that they are compatible with the metals used in the circuit MTS suggests the use of suitable anti freeze products such as Fernox ALPHI 11 which will prevent rust and incrustation takin...

Страница 29: ...he front casing panel follow these steps 1 Remove the screws A FIG 3 1 2 Remove the four screws from the case hooks two at the top and two at the bottom and rotate FIG 3 2 3 Lift and unhook the case panel FIG 3 3 FIG 3 2 FIG 3 3 FIG 3 1 A A ...

Страница 30: ...on Push button Reset Button Flue Test scroll through Functions Menu Menu Button Programming key Programming key Description A Green LED illuminated burner on B Time clock C Selector knob for Summer Winter Central Heating TemperatureAdjustment Knob D Control Panel Cover E Domestic Hot Water Temperature Adjustment Knob F Heating System Pressure Gauge G COMFORT Function L E D H Red LED illuminated bo...

Страница 31: ...l it with water until it returns to 1 bar 2 Fill the boiler condensate trap with water Fig 3 6 N B In the event of a prolonged period of system shutdown the condensate trap should be filled before any renewed use A shortage of water in the trap could temporarily lead to a small leakage of fumes into the air 3 Ensure that the flue is fitted correctly 4 Turn on the gas cock Fig 3 8 and check the sea...

Страница 32: ...ters that refer to the operations indicated below 0 No request for heat C Heating c Pump overrun for heating d Domestic hot water h Pump overrun for domestic hot water F Frost Protection The right hand display two digit shows in CENTRAL HEATING mode temperature of the Central Heating system flow in DOMESTIC HOT WATER mode temperature of the Domestic Hot Water FIG 3 9 LEFT RIGHT ...

Страница 33: ...00 to 9 9 step 1 5 8 2 Maximum Heating Power from 00 to 9 9 step 1 6 0 3 Ignition delay minutes from 00 to 0 7 step 1 minute 0 2 4 Central heating minimum temperature 25 C if parameter r 00 42 C if parameter r 01 4 2 5 Central heating maximum temperature 75 C if parameter r 00 82 C if parameter r 01 8 2 6 P T rpm Check of the temperature difference between the flow and return sensors for twelve se...

Страница 34: ...Temperature regulation controlled by external sensor 90 Disabled 91 Enabled 9 0 p 6 Correction of heat curve translation from 20 to 2 0 P 5 Curve incline from 0_1 to 5 _ 0 0 _ 9 t Test Function A Bus Address Do not modify b 0 Set point second heating zone from 25 to 8 2 7 5 b 1 GSM value Do not modify b 2 Heating delay after commutation in DHW from 0 to 30 minutes from 00 to 3 0 step 1 minute 0 0 ...

Страница 35: ...wed by the boiler 29 4kW and the minimum recommended power 6 5 kW indicated in the graph below The value is factory set to 70 of the maximum power The value set expressed as a percentage can be displayed and modified as illustrated in Section 3 6 1 parameter 2 The display shows the value between 100 99 on the display and 1 00 Use the graph below as a guide to set the boiler heating power to suit t...

Страница 36: ... modes are available 0 1 1 minute of pump overrun 0 2 2 minutes of pump overrun factory setting 0 3 3 minutes of pump overrun 0 4 4 minutes of pump overrun 1 5 15 minutes of pump overrun FIG 3 17 FIG 3 16 Boiler types F Factory setting 00 ACO 35 MFFI COMBI THIS PARAMETER MUST NEVER BE ADJUSTED Maximum Central Heating temperature 5 This parameter allows the setting of the maximum temperature for th...

Страница 37: ...ion active for 30 minutes factory setting It is possible to deactivate the comfort function by pressing the button The yellow LED G will go out NOTE During the overrun period of the pump the COMFORT function if selected is temporarily deactivated The L E D light remains on to indicate that the boiler will return to the COMFORT mode once the pump overrun has finished G TEMPERATURE REGULATION CONTRO...

Страница 38: ...lect by pressing the and buttons FIG 3 25 FIG 3 24 ADAPTING THE HEAT CURVE P 6 Only enabled when the outdoor sensor is activated Should the external sensor be fitted it will be necessary to set the heating curve see below and may be necessary to adjust the parallel shift depending on the performance of the heating system used If the temperature in the house is too high it will be necessary to decr...

Страница 39: ...by pressing the Reset key for 5 seconds the boiler is automatically forced to test mode and t will be displayed the boiler is now in the test mode for the maximum heating power to force the boiler to maximum output for hot water it is necessary to press the and keys together two dashes appear at the top of the right hand display see Fig 3 29 This function is disabled by pressing the reset key b by...

Страница 40: ... U 4 U 6 E A Value read on right hand display Flow temperature of the Central Heating circuit C Return temperature of the Central Heating circuit C Domestic Hot Water output temperature C Outdoor temperature C Fan speed rpm Last safety shut off see section 3 10 Last shutdown see section 3 10 3 6 2 SETTINGS DISPLAY To return to the normal display press the menu key The boiler will automatically ret...

Страница 41: ...Allow the reading to become stable for at least 4 minutes 3 When the check is over replace the cap on screw 2 Fig 3 31 4 Disable operation at minimum power by pressing the key or press the key to check the maximum value dashes at top of display see Fig 3 29 While the appliance is operating at maximum power check the gas rate of the appliance at the gas meter Setting the CO2 at maximum power To che...

Страница 42: ...um power The value set expressed as a percentage can be displayed and modified as described in paragraph 3 6 1 parameter 2 using the graph on Page 35 3 7 CHANGING THE TYPE OF GAS The boiler operation can be changed over from methane gas G20 to Liquid Gas G31 or vice versa an operation that must be performed by a CORGI registered Gas Engineer To change the type of gas it is necessary to proceed as ...

Страница 43: ...iler to reach operating temperature and then starting at the radiator furthest from the boiler open the radiator valves until the radiator becomes hot and move to the next radiator on the circuit working your way back to the radiator closest to the boiler 10 Carry out check 3 6 3 verifying the inlet pressure is correct and the CO2 values are as stated in Table 4D page 41 11 Check the gas connectio...

Страница 44: ...e contacted Safety shutdown In the event that a safety shutdown occurs it is necessary to contact an Authorised Service Centre DISPLAY CAUSE A 01 Too many attempts to ignite on start up A 03 The heating flow temperature exceeds 105 C during operation A 07 Too many failures to ignite in one period during operation A 33 Problem with the fan A 97 Problem with the electronic monitoring A 98 Problem wi...

Страница 45: ...l check the following a if the central heating flow temperature is 8 C the pump stops b if the central heating flow temperature is between 3 and 8 C the pump will run for another two minutes c if the central heating flow temperature is 3 C the burner will fire heating position at minimum power until the temperature reaches 33 C the burner will go out and the pump will continue to run for two minut...

Страница 46: ...esults in the error code A 0 1 The boiler will modulate the burner according to the central heating output The burner can activate up to a maximum of the set point at 4o C Reignition of the burner occurs once it has thermostatically turned off can be time delayed between 0 and 7 minutes adjustable in Step 3 Section 3 6 1 the factory setting is 2 minutes Overheat safety is provided by a Klixon ther...

Страница 47: ...eposits the control panel must be kept closed make sure that there are no traces of detergents in the exchanger CLEANING THE WATER SIDE Use detergents that dissolve CaCO3 Leave to act for a short time and then rinse Make sure that the detergent does not remain inside the exchanger To clean the condensate trap it is simply necessary to unscrew the lower part of the condensate trap and clean it Last...

Страница 48: ...anel and remove the casing proceed as follows 1 Remove the screws A Fig 7 1 2 Loosen the four screws B from the case hooks two at the top and two at the bottom and rotate Fig 7 2 3 Lift and unhook the case panel Fig 7 3 4 Lower the control panel Fig 7 4 To ensure efficient safe operation the boiler must be serviced annually by a competent person Before starting any servicing work ensure both the g...

Страница 49: ...he gas valve FIG 7 6 3 Disconnect electrical connections to gas valve and fan 4 Dismount the gas valve mixer fan group FIG 7 7 5 Reassamble in reverse order FIG 7 5 FIG 7 6 C D 7 3 ACCESS TO THE COMBUSTION CHAMBER FIG 7 4 To gain better acess to certain components it will be necessary to remove the silencer ...

Страница 50: ...ousing FIG 7 8 3 Reassemble in reverse order and check all seals are undamaged and the burner is positioned correctly FIG 7 8 FIG 7 9 FIG 7 10 FIG 7 11 7 3 3 REMOVING THE DETECTION ELECTRODE 1 Remove the two torx screws E FIG 7 9 2 Extract the electrode FIG 7 10 3 Disconnect the detection electrode cable FIG 7 11 E ...

Страница 51: ...de cable from the spark generator FIG 7 13 3 Unscrew the two screws F FIG 7 14 F 1 Remove ther air gas assembly see section 7 3 1 2 Disconnect the air gas connection unscrew the three screws G FIG 7 15 3 Remove the mixer by unscrewing the two screws H FIG 7 16 4 Remove the fan FIG 7 17 7 3 5 REMOVING THE FAN FIG 7 16 H H FIG 7 15 G FIG 7 17 ...

Страница 52: ...turn and flow temperature probes and the overheat thermostat FIG 7 18 6 Unplug the pipe clips FIG 7 18 7 Loosen the nut I and remove the pipe FIG 7 19 7 20 8 Loosen the nut J and remove the pipe FIG 7 21 7 22 9 Loosen the nuts K and remove the exchanger FIG 7 23 7 24 FIG 7 18 FIG 7 22 FIG 7 23 FIG 7 21 FIG 7 19 J I ATTENTION When removing the heat exchanger ensure that no water can enter the elect...

Страница 53: ...53 7 3 7 REMOVING THE CONDENSATE TRAP TUBE 1 Unplug the clip L FIG 7 25 2 Unscrew the screw M FIG 7 26 3 Remove the condensate tube FIG 7 27 FIG 7 27 FIG 7 24 FIG 7 25 FIG 7 26 L M ...

Страница 54: ...removing the blanking cap to place a container under the boiler as this will release the contents of the condensate trap 7 4 ACCESS TO THE GAS VALVE FIG 7 30 FIG 7 31 1 Remove the casing and lower the control panel as instructed in Section 7 1 2 Press the release button N for the control panel Fig 7 30 and pull forward to remove from the boiler frame 3 Clip the control panel onto the frame of the ...

Страница 55: ... REMOVING THE SPARK GENERATOR 1 Disconnect the electrical connection from the spark generator FIG 7 33 2 Remove the screws P from the bottom of the spark generator FIG 7 34 4 Remove the spark generator FIG 7 33 FIG 7 34 P P 4 Reassemble in reverse order 5 The gas valve settings will need to be adjusted see section 3 6 3 6 Reinstate the gas supply and test for tightness on reassembly ...

Страница 56: ...nger towards the rear of the boiler lift upwards and remove from the front of the boiler FIGS 7 37 7 38 and 7 39 3 Before replacing the exchanger ensure that the O rings are in good condition and replace if necessary Important Before any component is removed the boiler must be drained of all water FIG 7 35 FIG 7 37 FIG 7 38 FIG 7 39 Q Q FIG 7 36 ...

Страница 57: ...VALVE 1 Loosen the nut R and remove the pipe Fig 7 40 2 Remove the valve Fig 7 41 FIG 7 40 FIG 7 41 7 5 3 REMOVING THE AUTOMATIC AIR VENT 1 Remove the U clip S FIG 7 42 2 Remove the automatic air vent FIG 7 43 FIG 7 43 FIG 7 42 S R ...

Страница 58: ...FIG 7 48 FIG 7 49 7 5 5 REMOVING THE D H W FLOW SWITCH 1 Unplug the electrical connector FIG 7 46 2 Remove the D H W flow switch FIG 7 47 FIG 7 46 FIG 7 47 FIG 7 44 7 5 4 REMOVING THE DIVERTER VALVE ACTUATOR 1 Unplug the electrical connector and retaining clip T FIG 7 44 2 Remove the diverter valve actuator FIG 7 45 FIG 7 45 T T T T T ...

Страница 59: ...gauge through the control panel from the rear 3 Remove the pressure gauge FIG 7 53 FIG 7 54 W 7 5 7 REMOVING THE LOW WATER PRESSURE SWITCH 1 Disconnect the electrical connection FIG 7 50 2 Loosen the nut V FIG 7 51 3 Remove the low water pressure switch FIG 7 52 FIG 7 50 FIG 7 51 FIG 7 52 V ...

Страница 60: ...nector by pulling off and loosening the nut Z Fig 7 58 2 Remove the D H W temperature probe FIG 7 59 FIG 7 58 FIG 7 59 7 5 9 REMOVING THE EXPANSION VESSEL 1 Unscrew the screw X FIG 7 55 2 Loosen nut Y FIG 7 56 3 Remove the expansion vessel FIG 7 57 X FIG 7 55 FIG 7 56 FIG 7 57 Y Z ...

Страница 61: ... 61 FIG 7 62 FIG 7 63 7 5 11 REMOVING THE C H RETURN TEMPERATURE PROBE N T C 1 Unplug the C H Return temperature probe Fig 7 62 2 Remove the electrical connection from the C H return temperature probe FIG 7 63 FIG 7 61 FIG 7 64 7 5 10 Removing the Overheat Thermostat 1 Unplug the overheat thermostat Fig 7 64 2 Remove the electrical connection from the overheat thermostat FIG 7 65 FIG 7 65 ...

Страница 62: ...move the inspection cover of the PCB box FIG 7 66 SECTION 7 6 7 2 Unplug all the electrical connections and loosen the screws A1 FIG 7 68 4 Pull forward the main PCB FIG 7 69 7 70 5 Unscrew the screws A2 Fig 7 71 6 Remove the cover of the control panel FIG 7 72 7 Unscrew the display P C B mounting screws A3 and disconnect the P C B connection cable A4 FIG 7 73 8 Remove the display P C B FIG 7 74 9...

Страница 63: ...VING THE TIME CLOCK 1 Open the control panel see the paragraph Removing the P C B s 2 Unplug the electrical connection from the time clock and unscrew the four screws FIG 7 75 3 Remove the time clock FIG 7 76 FIG 7 76 FIG 7 75 A3 A3 A3 A3 A4 ...

Страница 64: ...It is possible to detect and correct defects by using the standard fault finding diagrams described in this chapter NOTE THESE CHECKS ARE NOT EXHAUSTIVE 8 1 FAULT FINDING GUIDE FLOW CHARTS 8 FAULT FINDING ...

Страница 65: ...65 IS THE LOW WATER PRESSURE SWITCH WORKING CORRECTLY E 02 does not close 1 Check if there is air in the system 2 Check the pressure on the water gauge and fill system to 1 bar Push the RESET button ...

Страница 66: ...66 ...

Страница 67: ...03413 0502 MOTOR 3 WAY VALVE 997147 0520 TEMPERATURE PROBE D H W 998458 0529 PRESSURE GAUGE 65102220 0531 AUTO AIR VENT O RING 995367 0537 SAFETY VALVE 1 2 3 BAR 573172 0538 KIT FOR REAR PUMP ATTACHMENT 65103500 0548 TEMPERATURE PROBE CLIP 65103502 0564 FLOW DETECTION KIT WITH MAGNET 65100540 0571 LOW WATER PRESSURE SWITCH 995903 0589 SECONDARY EXCHANGER 65103501 0597 THERMOSTAT OVERHEAT 996065 06...

Страница 68: ...rimary heat exchanger checked and cleaned if necessary All electronic parameters checked and set as required Time clock and room thermostat checked for correct operation Please check the following information Gas inlet pressure DHW flow rate Gas working pressure Gas rate CO2 setting min max CO2 ratio T 35 C o CH output In order to maintain the 5 year manufacturers warranty a similar sheet to this ...

Страница 69: ...69 11 BENCHMARK COMMISSIONING CHECKLIST ...

Страница 70: ...70 12 SERVICE INTERVAL RECORD ...

Страница 71: ...71 ...

Страница 72: ...antee has been withdrawn On the 12 month anniversary of the appliance installation you must have it serviced to continue any guarantee offered into the following year Failure to do so will invalidate your guarantee and should an MTS engineer be required to attend and no proof of service documentation is made available then MTS will charge As part of the commissioning process it is a legal requirem...

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