Sime FRIENDLY Installation And Servicing Instructions
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Sime FRIENDLY Installation And Servicing Instructions

Sime FRIENDLY Installation And Servicing Instructions

Combination boilers
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Summary of Contents for Sime FRIENDLY

  • Page 1 Combination Boilers installation and servicing instructions...

  • Page 3: Table Of Contents

    CONTENTS TECHNICAL FEATURES AND DIMENSIONS INTRODUCTION ............. . 1 DIMENSIONAL DETAILS GENERAL DATA .
  • Page 4 D.H.W. MODE - FAULT FINDING (“FRIENDLY” MODEL) ........

  • Page 5: Technical Features And Dimensions

    The boiler is designed for use with sealed primary water systems and is supplied fully assembled and equipped with The Sime “FRIENDLY” is a wall mounted, fan assisted complete valve packs. If the wall thickness is less than 0.5 m balanced flue combination boiler.

  • Page 6: General Data

    DOMESTIC HOT WATER Max. 24.0 82,000 30.0 102,500 Min. 30,000 12.5 42,800 TABLE 3b - Nominal boiler ratings (2 minutes after lighting) for “FRIENDLY E” model MODE OUTPUT INPUT (G.C.V.) BURNER PRESSURE Btu/h Btu/h mbar inwg CENTRAL HEATING RANGE 33,000 13.5...

  • Page 7: Hydraulic Circuit

    Limit thermostat Drain cock Heat exchanger Circulating pump Combustion chamber C.H. thermistor Divertor valve C.H. expansion vessel Safety thermostat (“FRIENDLY” model) D.H.W. heat exchanger (calorifier) Automatic air vent D.H.W. thermistor Air separator Gas cock D.H.W. isolation valve Multifunctional gas control C.H.

  • Page 8: General Requirements For Installation

    GENERAL REQUIREMENTS FOR INSTALLATION STATUTORY REQUIREMENTS – It is ESSENTIAL TO ENSURE, in practice that products of combustion discharging from the terminal cannot re- GAS SAFETY (INSTALLATION AND USE) REGULATIONS 1984. enter the building, or any other adjacent building, It is the law that all gas appliances are installed by a compe- through ventilators, windows, doors, other sources of tent person, in accordance with the above regulations.

  • Page 9: Ventilation Requirements

    The connection is made inside the control box across terminals 40 and 41. TABLE 7 “FRIENDLY E” model Position Air from room Air direct The voltage between terminals 40 and 41 is 24 V, hence of air vent.
  • Page 10 a) The available pump head is given in fig. 4. The type of pump fitted is easily identified after removal of the front panel. b) A minimum flow rate corresponding to a heating diffe- rential of 11°C must be obtained at all times. c) A heating by-pass should be fitted to ensure condition (b) is satisfied.

  • Page 11: D.h.w. Systems

    ALTERNATIVE METHODS OF FILLING A SEALED SYSTEM METHOD 1 (complies with BS6798.1987) METHOD 2 (complies with BS6798.1987) NOTES: – When it is not possible to avoid a situation where the initial system pressure and static head are equal a manually fitted top up container should be fitted as shown above.

  • Page 12: Installing The Boiler

    appliance but may lower the water temperature below 2.10.1 Domestic hot/cold water supply an acceptable level. taps and mixing taps – If the appliance is installed in an area where the tem- porary hardness of the water supply is high, say over All equipment designed for use at mains water pressure is 150 ppm, the fitting of an in line scale inhibitor may be suitable.

  • Page 13: Hanging The Boiler

    – Accurately measure the wall thickness, and note this – Lift the appliance into position. The upper cross member dimension for later use. locates onto the wall mounting bracket. Slide the – Secure the wall mounting bracket in position using the appliance sideways (if necessary) until the lower frame screws provided.
  • Page 14 and air ducts should be joined before proceeding to the Side flue outlet (Only - fig. 11) next section. The extension ducts should be joined to each other and to the standard ducts using the fol- – Select the air duct (larger duct) and starting at the formed lowing procedure (fig.

  • Page 15: Flue And Terminal Installation

    Elbow flange Junction collar Outer duct Aluminium ring Rubber sealing ring Inner duct c/w terminal G Gasket ø 95/125 x 2 Fixing screw Protective metal collar Inner “O” ring Fig. 13 FLUE AND TERMINAL INSTALLATION tion ring (D), check that the rubber sealing ring (E) is pulled up to the wall and that the duct assembly is hori- 3.5.1 Installations from inside the room zontal, then secure the aluminium retention ring to the...

  • Page 16: Gas Connections

    – If a room thermostat is to be used, remove the link Screw TCB M4 x 10 between terminals 40 and 41 in the terminal provided Fig. 14 therein and replace it with the room thermostat. “FRIENDLY” model 3 pins socket 3 pins plug “FRIENDLY E” model Fig. 15...

  • Page 17: Commissioning And Testing

    – Open the D.H.W. inlet valve, open any hot tap, clear of air bubbles. Close hot tap. 4.2.2 SIT 837 TANDEM mounted on “FRIENDLY E” model COMMISSIONING THE BOILER – Remove the screw and connect a pressure gauge to the burner pressure test point on the gas valve (fig.

  • Page 18: Setting The C.h. Input

    – Allow the boiler to run for at least 2 minutes and check the burner pressure. The heating input is factory set as follows: – 23 kW (78,750 Btu/h) for “FRIENDLY” model which is required to give 17.9 kW (61,200 Btu/h) output.

  • Page 19: Routine Servicing Instructions

    – Unscrew the pilot pipe from the pilot burner and with- draw. Carefully remove the pilot injector. It may be necessary to remove the pilot bracket to do this. – In the “FRIENDLY” model unscrew the thermocouple RE-ASSEMBLY and spark electrode connections and remove from pilot bracket.

  • Page 20: Re-Commissioning

    the gas soundness before fitting the outer case. ALTERNATIVE HUBA SWITCH Ensure that all seals are correctly fitted and that the pressure sensing lines are correctly fitted as shown in figs. 21 and 22. Ensure that the earth connection is cor- rectly refitted.

  • Page 21: Fault Finding - Pilot ("Friendly" Model)

    6.3 Polarity and 6.4 Resistance to earth must be IMPORTANT: These series of checks are the first elec- repeated. FAULT FINDING - PILOT (“FRIENDLY” model) Room thermostat open, no D.H.W. request and all D.H.W. taps off. Is main power...

  • Page 22: Mode - Fault Finding ("Friendly" Model)

    C.H. MODE - FAULT FINDING (“FRIENDLY” model) Start from cold: Summer/Winter switch set to WINTER position; room thermostat (if fitted) calling for heat and all D.H.W. taps off; C.H. thermostat set to maximum position; clock override switch in the on position.

  • Page 23: Mode - Fault Finding ("Friendly" Model)

    D.H.W. MODE - FAULT FINDING (“FRIENDLY” model) Start from cold - Summer / Winter switch set to SUMMER position, D.H.W. thermostat set to maximum, and all D.H.W. taps OFF. Open any D.H.W. tap to give flow 2.8 l/min. microswitches of divertor...

  • Page 24: Mode - Fault Finding ("Friendly E" Model)

    C.H. MODE - FAULT FINDING (“FRIENDLY E” model) Start from cold Summer/Winter switch set to WINTER position. Room thermostat (if fitted) calling for heat and all D.H.W. taps off. C.H. thermostat set to maximum position. Clock override switch in the on position.

  • Page 25: Mode - Fault Finding ("Friendly E" Model)

    D.H.W. MODE - FAULT FINDING (“FRIENDLY E” model) Start from cold - Summer/Winter switch set to SUMMER position, D.H.W. thermostat set to maximum, and all D.H.W. taps OFF. Is power at Make Replace Does Does Replace Is there a spark at...

  • Page 26: Internal Wiring Diagrams And Views

    INTERNAL WIRING DIAGRAMS AND VIEWS FUNCTIONAL FLOW WIRING DIAGRAM “FRIENDLY” MODEL Phase Delayed ignition Neutral Smoke pressure switch D.H.W. temperature sensor (red) Fan capacitor Outlet C.H. temperature sensor (blue) Time clock Limit stat 85°C Power-on lamp Gas valve Time clock overriding switch H.L.

  • Page 27: Functional Flow Wiring Diagram "Friendly E" Model

    FUNCTIONAL FLOW WIRING DIAGRAM “FRIENDLY E” MODEL Fig. 23/b...

  • Page 28: Internal View "Friendly" Model

    Pressure switch bracket screws Pressure switch Limit thermostat Heat exchanger Pilot assembly Gas valve D.H.W. thermistor D.H.W. heat exchanger Fig. 24/a INTERNAL VIEW “FRIENDLY E” MODEL Clock override switch Summer/Winter switch C.H. potentiometer D.H.W. potentiometer Clock Pressure gauge Divertor valve Circulating pump...

  • Page 29: Replacement Of Parts

    – Drop and tilt the fan assembly forwards and remove in a downwards direction. – Unscrew the three screws retaining the fan on the fan “FRIENDLY” model plate (14 fig. 24). Remove the fan assembly. – Remove the combustion chamber front panel as descri- –...

  • Page 30: Gas Valve

    – Remove the outer casing as described in section 5.1. – Disconnect the electrical connections to the gas valve by 8.6.2 SIT 837 TANDEM mounted on “FRIENDLY E” model removing grey cover (take out one screw), pulling wires from connectors and disconnecting earth. Remove plug –...

  • Page 31: Pressure Switch

    THERMOCOUPLE AND OVERHEAT adjusting the D.H.W. Inlet valve and check that the burner pressure decreases in response to D.H.W. tem- THERMOSTAT FOR “FRIENDLY” MODEL perature rise. Fully open the inlet valve; – close the D.H.W. tap and ensure that the burner is –...

  • Page 32: Spark Generator For "Friendly"Model

    – Pull off the connector blocks from the driver PCB (The valve. Withdraw the valve and remove the electrical con- L.H.S. - larger - PCB for “FRIENDLY E” model). nections. – Pull off the potentiometer control knobs (1 - 3 fig. 17), –...

  • Page 33: C.h. Expansion Vessel

    8.19 C.H. EXPANSION VESSEL 8.22 SAFETY VALVE In the unlikely event of failure of the expansion vessel diaph- – Remove the outer casing as described in section 5.1. ragm it is acceptable to leave the vessel in position and to fit –...

  • Page 34: Short List Of Parts

    309 328 Main burner POLIDORO 51727.00 Pilot burner POLIDORO PA 646 F/G 29 (“FRIENDLY”) 62231.01 379 588 Pilot burner POLIDORO PA 646 F/G 29 (“FRIENDLY E”) 62231.03 397 950 Main injector NP 130 61544.02 397 949 Pilot injector POLIDORO G29 60661.02...
  • Page 35 l l t t d d . . Unit D2 Enterprise Way, Bradford Road, Idle, Bradford, BD10 8EW Tel 0870 9911114 Fax 0870 9911115...

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