background image

In order to access the inside of the boiler, it is necessary to
unscrew the fastening screws 

“A”

of the control panel

located on the lower part of the panel itself.
The control panel moves downward and when pulled
forward rotates on two lateral hinges.
The panel stays in a semi-horizontal position, which allows
access to the inner parts of the boiler.
In order to increase the manoeuvring space, it is possible
to raise the control panel and rotate it to a fully horizontal
position.

19

4.3

R

EMOVING THE

F

RONT

P

ANEL

1

A

A

B

C
D

E

F

I

L

G H

L

EGEND

:

A

- On/Off button

B

- On/Off L.E.D. green (frost protection active)

C

- Central Heating button

D

- Cental Heating active L.E.D. green 

E

- Ignition failure (lockout) and/or overheat reset button

F

- Ignition failure (lockout) and/or overheat L.E.D. red

G

- Central heating temperature adjustment

H

- Energy Saving System (ESS)

I

- Knock-out for time clock 

J

- Heating system pressure gauge

4.2

C

ONTROL

P

ANEL

F

IG

. 4.1

If the gas supply for the boiler serves other appliances ensure that an
adequate supply is available both to the boiler and the other appliances
when they are in use at the same time.
Pipe work must be of an adequate size. Pipes less than the 22mm should
not be used.
Open the gas cock (supplied with the connection kit) to the appliance and
check the gas connections on the appliance for leaks.
When the installation and filling are completed, flush the system while cold,
refill, turn on the Central Heating system (Section 4.4) and run it until the
temperature has reached the boiler operating temperature.
The system must then be immediately flushed through.
The flushing procedure must be in line with BS 7593:1992 code of practice
for treatment of water in domestic hot water central heating systems.

During this operation, we highly recommend the use of a central heating
flushing detergent (Fernox Superfloc or equivalent), whose function is to
dissolve any foreign matter that may be in the system.

Substances different from these could create serious problems to the
pump or other components.

The use of an inhibitor in the system such as Fernox MB-1 or equivalent is
strongly recommended to prevent corrosion (

sludge

) damaging the boiler and

system.

Failure to carry out this procedure may invalidate the appliance
warranty.

For IE it is necessary to complete a “Declaration of Conformity” to indicate
compliance to I.S.813. An example of this is given in the current edition of
I.S.813. In addition it is necessary to complete the “Benchmark” Log Book.

Summary of Contents for microSYSTEM

Page 1: ...Installation Instructions Type C Boilers G C N 41 116 06 41 116 07 LEAVE THESE INSTRUCTIONS WITH THE END USER Country of destination GB IE ...

Page 2: ...ION 2 11 ROOM THERMOSTAT CONNECTION 2 12 ELECTRICAL DIAGRAMS 2 13 GAS AND WATER CIRCUITS 3 D H W STORAGE CYLINDER 3 1 2 PORT AND 3 PORT VALVE INSTALLATIONS 3 2 DOMESTIC HOT WATER PRIORITY KIT 4 COMMISSIONING 4 1 INITIAL PREPARATION 4 2 CONTROL PANEL 4 3 REMOVING THE FRONT PANEL 4 4 INITIAL START UP 4 5 OPERATIONAL ADJUSTMENTS 4 6 COMBUSTION ANALYSIS 4 7 FUME DISCHARGE MONITORING 4 8 DRAINING THE S...

Page 3: ... plate on the reverse of the control panel The gas with which this appliance operates is also shown on the label at the bottom of the boiler Do not install this appliance in a damp environment or close to equipment which spray water or other liquids Do not place objects on the appliance Do not allow children or inexperienced persons to use the appliance without supervision If you smell gas in the ...

Page 4: ...f gas or flame ionisation detection electrode safety device for gas cock 11 Check of the electrical connection make sure it complies with the instructions in the manual 12 General check of the combustion by products of the discharge ventilation system 13 Check of the general performance of the unit LEGEND 1 Flue connector 2 Air intake for twin pipe flue systems 3 Fan 4 Combustion chamber hood 5 Ma...

Page 5: ...document No 635 Electricity at work regulations 1989 and in the Republic of Ireland with the current edition of I S 813 the Local Building Regulations IE C O S H H Materials used in the manufacture of this appliance are non hazardous and no special precautions are required when servicing Installation should also comply with the following British Standard Codes of Practice and in the Republic of Ir...

Page 6: ...ing a bath or shower reference should be made to the relevant requirements In GB this is the current I E E WIRING REGULATIONS and BUILDING REGULATIONS In IE reference should be made to the current edition of I S 813 and the current ETCI rules If the boiler is to be sited into a timber framed building reference must be made to the current edition of the Institution of Gas Engineers Publication IGE ...

Page 7: ...ion IMPORTANT In the event that the power supply cord 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 symbol The blue wire should be connected to the terminal marked N The brown wire should be connected to the terminal E L...

Page 8: ...uld not be used marked L Note The diagrams for the electrical system are indicated in section 2 12 Warning this appliance must be earthed External wiring must be correctly earthed polarised and in accordance with relevant regulations rules In GB this is the current I E E WIRING REGULATIONS In IE reference should be made to the current edition of the ETCI rules This boiler is supplied for connectio...

Page 9: ...s boiler is suitable only for sealed systems DRAIN COCKS These must be located in accessible positions to permit the draining of the whole system The taps must be at least 15mm nominal size an manufactured in accordance with BS 2870 1980 SAFETY VALVE DISCHARGE PRIMARY WATER The discharge should terminate facing downwards on the exterior of the building in a position where discharging possibly boil...

Page 10: ...scolouration that might occur on buildings in the vicinity In cold or humid weather water vapour may condense on leaving the flue terminal The effect of such steaming must be considered If the terminal is less than 2 metres above a balcony above ground or above a flat roof to which people have access then a suitable terminal guard must be fitted When ordering a terminal guard quote the appliance m...

Page 11: ...t the elbow into the air intake until it reaches the lower end There is no need to use gaskets or sealing compounds 11 IMPORTANT For all flue systems a restrictor must always be inserted into the boiler s flue connector the restrictor must be Ø 46 or Ø 41 in diameter depending on the length of piping indicated in TABLE 2 1 FIG 2 9 and FIG 2 10 illustrate some of the various designs for coaxial or ...

Page 12: ...t Type C12 xy C32 xy C42 xy C52 xy C82 xy Restrictor ø 46 mm L max 25 m L max 22 m Maximum Extension Exhaust Air 34 m 34 m 34 m 31 m Risk of Condensation Forming Twin Pipe Systems ø 80 80 Piping not insulated ø 46 restrictor NO restrictor 3 0 m 4 5 m 3 3 m 4 8 m Piping insulated ø 46 restrictor NO restrictor 12 5 m 16 0 m 14 0 m 17 8 m 21 RFFI 28 RFFI TWIN PIPE SYSTEMS FIG 2 10 In calculating the ...

Page 13: ... switching wires to the position 5 and 6 and remove the wire link for three wire thermostats connect the neutral to terminal N 4 For the time clock connect the clock switching wires to the positions 3 and 4 and connect the clock motor electrical supply to the terminals marked L and N Note A frost thermostat is built in to the appliance For connection to control systems with zone valves for hot wat...

Page 14: ...re Switch A02 Frost Thermostat A03 Modulator A04 Circulation Pump A05 Regulation Thermostat A06 External Control System A07 Time Clock Connector A08 External Room Thermostat A09 Air Pressure Switch A10 Fan A11 Overheat Thermostat A12 Spark Generator Gas Valve Supply A13 Detection Electrode Colours Wh White Bl Blue Gry Grey Brn Brown Blk Black Rd Red Grn Yll Yellow Green ...

Page 15: ...egulation thermostat 8 Frost thermostat 9 Gas valve 10 Pump pressure switch 11 Safety valve 3 bar 12 Boiler drain valve 13 Automatic by pass 14 Pressure gauge 15 Circulation pump with automatic air release valve 16 Expansion vessel 17 Air pressure switch A Central Heating Flow C Inlet Gas E Central Heating Return 2 13 GAS AND WATER CIRCUITS FIG 2 14 FIG 2 13 ...

Page 16: ...ders of different capacities can be used depending on site requirements see TABLE 3 1 for a selection of ARISTON unvented cylinders FIG 3 2 3 port valve installation FIG 3 1 2 port valve installation 3 1 2 PORT AND 3 PORT VALVE INSTALLATIONS Wiring to 2 port valve installation using an external 2 channel programmer Type Danfoss FP715 Type Honeywell ST6400C FIG 3 3 ...

Page 17: ...210 Indirect 200 0 93 0 5 256 14 9 2 9 Contract STI 300 Indirect 300 0 93 1 353 20 5 2 451 26 2 SB 125 Indirect 125 1 0 5 190 11 1 72 1 318 18 5 2 496 28 8 SB 150 Indirect 150 1 0 5 190 11 1 75 1 318 18 5 2 496 28 8 SB 200 Indirect 200 1 3 0 5 190 11 2 1 1 318 18 5 2 496 28 8 TABLE 3 1 Wiring to 3 port valve installation using an external 2 channel programmer Type Danfoss FP715 Type Honeywell ST64...

Page 18: ...pump is free Refit the pump plug Continue filling the system until at least 1 5 bar registers on the pressure gauge Inspect the system for water leaks and remedy any leaks discovered GAS SUPPLY Inspect the entire installation including the gas meter and test for soundness The gas installation should be in accordance with the relevant standards In GB this is BS6891 and in IE this is the current edi...

Page 19: ...an adequate size Pipes less than the 22mm should not be used Open the gas cock supplied with the connection kit to the appliance and check the gas connections on the appliance for leaks When the installation and filling are completed flush the system while cold refill turn on the Central Heating system Section 4 4 and run it until the temperature has reached the boiler operating temperature The sy...

Page 20: ... air has been bled from the system Loosen the cap on the head of the pump to eliminate any air pockets Repeat the procedure for bleeding the radiators of air Check the system pressure and if it has dropped open the filling loop again to bring the pressure back up to 1 5 bar 2 Make sure that all gate valves are open 3 Turn on the gas cock and check the seals on the connections with an approved soap...

Page 21: ...where the primary circuit reaches a temperature in excess of 105 C The red L E D F will illuminate to signal this shutdown status The system can be reset by waiting a few minutes for the primary exchanger to cool down and then by pressing and releasing the E button 4 ANTI FROST DEVICE The boiler is equipped with a device that in the event of the water temperature going below 6 C the burner ignites...

Page 22: ...1013mbar MJ m3 h Nominal Delivery Pressure mbar Minimum Delivery Pressure mbar 21 RFFI Main Burner n 12 jets ø mm Consumption 15 C 1013mbar m3 h Consumption 15 C 1013mbar Kg h Gas Burner Pressure max min mbar 28 RFFI Main Burner n 14 jets ø Consumption 15 C 1013mbar m3 h Consumption 15 C 1013mbar Kg h Gas Burner Pressure max min mbar CATEGORY II2H3 Methane Gas G20 Liquid Butane Gas G30 Liquid Prop...

Page 23: ... burner jets 7 Visual check of the primary heat exchanger check for overheating in the blade assembly clean the exhaust fan if needed 8 Adjustment of the flow rate of the gas flow rate for lighting partial load and full load 9 Check of the heating safety systems safety device for maximum temperature overheat thermostat safety device for maximum pressure safety valve 10 Check of the gas safety syst...

Page 24: ...ity G20 m3 h Gas Consumption after 10 Minutes m3 15 C 1013 mbar G30 G31 Kg h Temp of exhaust fumes at nominal capacity C CO2 Content O2 Content CO Content ppm Minimum Ambient Temperature C Head Loss on Water Side max T 20 C mbar Residual Head of System bar Heating Temperature max min C Expansion Vessel Capacity l Expansion Vessel Pre load Pressure bar Maximum Water Content of System l Maximum Heat...

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