Biasi RIVA ADVANCE HE M110B.24SM/C Service Manual
Wall hung, fanflue, roomsealed, high efficiency
gas boiler biasi riva advance he
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Also See for RIVA ADVANCE HE M110B.24SM/C:
- User manual and installation instructions (60 pages) ,
- Service manual (52 pages) ,
- User manual and installation instructions (52 pages)
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Wall hung, fanflue, roomsealed, high efficiency gas boiler
Service manual
RIVA ADVANCE HE
Models
M110B.24SM/C
M110B.32SM/C
M110B.24SR/C
Leave this manual adjacent to the gas meter
Warning:
Service / repairs must be carried out, only by a qualified Gas Safety
Registered Engineer, who will be responsible for the current Regulations for
gas appliances.
Note:
After servicing, complete the relevant Service Interval Record section of the
Benchmark Checklist of the user and installation manual.
G.C. Appl. No.
47---583---11
47---583---12
41---583---07
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Table of Contents
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Summary of Contents for Biasi RIVA ADVANCE HE M110B.24SM/C
- Page 1 Wall hung, fanflue, roomsealed, high efficiency gas boiler Service manual RIVA ADVANCE HE Models G.C. Appl. No. M110B.24SM/C 47---583---11 M110B.32SM/C 47---583---12 M110B.24SR/C 41---583---07 Leave this manual adjacent to the gas meter Warning: Service / repairs must be carried out, only by a qualified Gas Safety Registered Engineer, who will be responsible for the current Regulations for gas appliances.
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Page 3: Table Of Contents
Table of conTenTs 1 Overall infOrmatiOn . . . . . . . . . . . . . . . . . . . . . . . . . .4 12 primary circuit flOw switch . -
Page 4: Overall Information
OVERALL INFORMATION Overall infOrmatiOn 1 .1 Overall view Flue temperature Safety thermal probe NTC fuse Condensing heat exchanger air Condensing purger valve heat exchanger Burner Ignition electrodes Expansion vessel Detection electrode Spark Generator C.h. temp. probe Transformer Air box Safety thermostat Gas restrictor C.h. -
Page 5: General Access And Emptying Hydraulic Cir
GENERAL ACCESS AND EMPTYING HYDRAULIC CIRCUITS General access and emptyinG hydrau- lic circuits 2 .1 nomenclature figure 2 .2 To remove the side panels loosen the screws C and D (Figure 2.3), bring the base of the panels away from the boiler and lift them, freeing them from the top hooks. -
Page 6: Access To The Sealed Chamber
GENERAL ACCESS AND EMPTYING HYDRAULIC CIRCUITS Remove the screws E and remove the service panel (Figure 2.5); 6 Remove the screws F and remove the control panel lid (Fig- ure 2.5). figure 2 .7 attention: some water could remain in the condensing heat exchanger . -
Page 7: Diagrams
DIAGRAMS diaGrams 3 .1 wiring diagram m110b .24sm/ . . . m110b .32sm/ . . . Electric supply Three way terminal block diverter valve D.h.w. temperature probe NTC C.h. temperature probe NTC External controls terminal block Gas valve Pump gnye bu D.h.w. -
Page 8: Wiring Diagram M110B.24Sr
DIAGRAMS 3 .2 wiring diagram m110b .24sr/ . . . Electric supply terminal block C.h. temperature probe NTC External controls terminal block Gas valve Pump gnye bu gnye gnye bn bu bk bu bu bn bu bn bu bn bn bu Primary circuit flow switch Transformer... -
Page 9: Circuit Voltages
DIAGRAMS 3 .3 circuit voltages during c.h. or d.h.w. operation Electrical voltages with burner on only during c.h. operation only during d.h.w. operation Pump 3 way D.h.w. diverter valve Flow switch Gas valve Supply network Safety Transformer Main circuit thermostat pressure switch figure 3 .3 - 9 -... -
Page 10: Fault Finding
FAult Finding fault findinG ¥ - 10 -... - Page 11 FAult Finding ¥ - 11 -...
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Page 12: Condensing Heat Exchanger
Condensing heat exChanger cOndensinG heat exchanGer 5 .1 function The Condensing heat exchanger A in Figure 5.1 has the function of transferring heat produced from combustion of the gas and from the flue exhausted gas to the water circulating in it. figure 5 .1 By reducing the combustion products temperature, the latent heat of the vapour is transferred to the water circuit, allowing an extra gain of useful heat. -
Page 13: Cleaning
Condensing heat exChanger 14 Remove the Condensing heat exchanger by levering it and sliding it forwards. 15 Reassemble the Condensing heat exchanger carrying out the removal operations in reverse order. ensure to tighten the nuts n - figure 5 .2 firmly. 5 .3 cleaning If there are deposits of dirt on the coil of the Condensing heat exchanger, clean with a bristle paintbrush and remove the dust... -
Page 14: D .H .W . Heat Exchanger
D.h.w. heat exchanger d .h .w . heat exchanGer 6 .1 function The d.h.w heat exchanger A in Figure 6.1 and Figure 6.3 allows the instantaneous transfer of heat from the primary hydraulic cir- cuit to the water destined for d.h.w use. figure 6 .3 6 Completely unscrew the Allen key screws G (Figure 6.4) which hold the exchanger to the plastic groups. -
Page 15: Pump
PUMP pump Check that the impeller is integral with the rotor. 7 .1 function With the boiler off remove the front and right hand side case pan- The pump A in Figure 7.1 and Figure 7.4 has the function of els, lower the control panel and empty the primary circuit. -
Page 16: Removal Electrical Capacitor
PUMP Reassemble the pump carrying out the removal operations in the reverse order. When reassembling the pump, check the correct location of the O-ring gasket in the inlet port of the pump that seals the connection between the pump and the return water group. -
Page 17: Three Way Diverter Valve
Three way diverTer valve three way diverter valve 8 .1 function The diverter valve A (Figure 8.1) has the function of modifying the hydraulic circuit of the boiler by means of an electric command given by the electronic control p.c.b. in order to send the water that exits the primary heat exchanger towards the c.h. -
Page 18: Removal Of The Tree Way Diverter Valve
Three way diverTer valve 8 .5 removal of the diverter group 1 Remove the front and both side case panels. 2 Empty the primary circuit and the d.h.w circuit of the boiler. 3 Remove the electric actuator (section "Removal of the elec- tric actuator"... -
Page 19: Electronic Control/Ignition P.c.b
ElEctronic control/ignition p.c.b. electrOnic cOntrOl/iGnitiOn p .c .b . operating in order to keep the temperature of the hydraulic cir- cuits constant. 9 .1 function This is obviously possible within the useful power and maximum working temperature limits foreseen. Generally, the Electronic control/ignition p.c.b. receives inlet Inlet Information information coming from the boiler (the sensors) or from the outside (knobs, room thermostat, etc.), processes it and conse-... -
Page 20: Checking The Temperature
ElEctronic control/ignition p.c.b. figure 9 .2 1 x7 - x16 connector - electric supply terminal block and exter- nal controls terminal block. 2 Fuse F1, F2 3,15 A F 3 Fuse F3, 400 mA T 4 x15 connector - flame detection electrode 5 x12 connector - pump and 3 way diverter valve 6 x17 connector - gas valve 7 x14 connector - external temperature probe (optional) 8 x9 connector - safety thermostat, flue temperature probe... -
Page 21: Operation Lights
ElEctronic control/ignition p.c.b. erated in order to stabilize the temperature of the exiting water. Flue temperature probe NTC lock out If during the d.h.w. mode operation, the temperature of the pri- mary circuit goes over 90°C, the useful output is automatically Open flue temperature probe NTC reduced so that the primary circuit cannot reach excessive tem- peratures. -
Page 22: Reignition Frequency Setting
ElEctronic control/ignition p.c.b. 2 Keep pressed the reset button 9 for about 10 seconds until the lock-out signal lamp 10 blinks. 3 The lamps 11 should give the indication as in Figure 9.7 (maximum c.h. useful output adjustment). If not, press the reset button repeatedly to obtain it. -
Page 23: Setting The D.h.w. Flowmeter Operation Mode
ElEctronic control/ignition p.c.b. a number of times corresponding to the setting as in Figure 9.16 Where: Lamp OFF (once for the combination and four times for system boilers). At this point only the right green light flashes. Lamp Flashing 10 Turn the water control to minimum. Lock-out lamp blinks (2 figure 9 .13 per second) indicating the setting has changed 4 Keep pressed the reset button 9 for about 10 seconds (Figure... -
Page 24: Checks
ElEctronic control/ignition p.c.b. 3 Remove the spindles of the c.h. and d.h.w. temperature ad- D.H.W. justment knobs by delicately pulling them with pliers in the FLOWMETER direction shown by the arrow in Figure 9.21. 7 flashes Setting No. figure 9 .20 At this step it is possible to visualize the current setting by keep- ing the reset button 9 pressed for more than 5 seconds. - Page 25 ElEctronic control/ignition p.c.b. attention After installing the Electronic control/ignition p.c.b.: 11 Make sure the c.h. ( ) and d.h.w. ( ) temperature ad- justment knobs can move freely for the complete range. If not, remove the spindle again as described at step 3, turn the knob half a turn and re-insert the spindle.
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Page 26: Thermal Control In The Mode
ElEctronic control/ignition p.c.b. 9 .12 thermal control in the mode Switch in the function mode Taking circulator off water from the domestic hot circulator on fan still water circuit? stop circulator (3min) Is primary circuit Main circuit pressure Operation lights temperature higher than that switch consense? selected? -
Page 27: Thermal Control In The Mode
ElEctronic control/ignition p.c.b. 9 .13 thermal control in the mode Switch in the function mode See functioning with the function Taking Request for heat from control in the mode water from the domestic hot room thermostat? water circuit? (sec. 9.11) circulator off fan still circulator on... -
Page 28: Transformer
transfOrmer transfOrmer smaller larger connector connector 10 .1 removal clamp for fitting the transformer smaller larger connector connector figure 10 .2 10 .2 check the transformer warning: isolate the boiler from the mains electricity supply before removing any covering or component . 1 Remove the Transformer (see section "Removal"... -
Page 29: Gas Valve
gas valve Gas valve 11 .3 adjustment warning: isolate the boiler from the mains electrici- 11 .1 function ty supply before removing any covering or compo- The gas valve A in Figure 11.1 controls the gas inflow to the boiler nent . burner. check the supply pressure before making any adjustment to the gas valve . -
Page 30: Checks
gas valve 11 .4 checks warning: isolate the boiler from the mains electrici- ty supply before removing any covering or compo- nent . Check the on-off operators coils 1 Remove the front panel of the case. 2 Disconnect the electrical connector E (Figure 11.2). 3 Measure the electrical resistance between the connector pins figure 11 .4 of the on-off operators as illustrated in Figure 11.7. - Page 31 gas valve figure 11 .9 6 Unscrew the screws N and remove the valve (Figure 11.10). 7 Reassemble the valve carrying out the removal operations in reverse order. figure 11 .10 Before fitting a new gas valve, it is advisable to pre-set it as here- after explained. 8 Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops.
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Page 32: Primary Circuit Flow Switch
Primary circuit flow switch primary circuit flOw switch n .O . 12 .1 function The Primary circuit flow switch (A in Figure 12.1) function is to detect water flow rate through the primary hydraulic circuit of the boiler. figure 12 .2 12 .3 removal warning: isolate the boiler from the mains electrici- ty supply before removing any covering or compo- nent . -
Page 33: Expansion Vessel And Temperature-Pressure
Expansion vEssEl and tEmpEraturE-prEssurE gaugE expansiOn vessel and temperature- pressure GauGe 13 .1 function The Expansion vessel (B in Figure 12.1 function is to allow for the volume expansion of the c.h. circuit water due to the tem- perature rise. 13 .2 checks 1 Turn off the flow and return isolation valves and empty the primary circuit of the boiler. -
Page 34: 14 D .H .W . Flowmeter, Filter And Flow Limiter
D.h.w. flow switch, filter anD flow limiter d .h .w . flOwmeter, filter and flOw limiter 14 .1 function The d.h.w. flowmeter A in Figure 14.1 is a device that generates an electrical signal when hot water is drawn. figure 14 .3 1 Remove the front panel of the case. 2 Disconnect the connectors B and remove the sensor holder C (Figure 14.3). -
Page 35: Flow Limiter
D.h.w. flow switch, filter anD flow limiter 1 Remove the front panel of the case and empty the d.h.w. cir- cuit. 2 Remove the fork D and pull up the flow switch plug E (Figure 14.3) with the help of a screwdriver. 3 To remove the body 4 with the filter from the flow switch group rotate the flow switch plug 1 (Figure 14.5). 4 Reassemble the parts following the removing sequence in reverse order. -
Page 36: Temperature Probe
TemperaTure probe temperature prObe 15 .2 checks Temperature-resistance relationship 15 .1 function The Temperature probe has the function of converting the tem- warning: isolate the boiler from the mains electrici- perature of the water in the hydraulic circuit where it is installed ty supply before removing any covering or compo- into an electrical signal (resistance). - Page 37 TemperaTure probe figure 15 .4 - 37 -...
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Page 38: By-Pass Valve
By-pass valve by-pass valve warning: to lubricate the O-ring gaskets exclusively use a silicone base grease compatible to be in con- 16 .1 function tact with foods and approved by the local water au- The By-pass valve A in Figure 16.1 is located between the c.h. thorities . -
Page 39: Fan And Air Box
Fan and air box fan and air bOx 17 .1 function The function of the Fan A (Figure 17.1) is to force the mixture of air and gas into the burner. The function of the Air box B is to mix the gas and the air in the right proportion. -
Page 40: Ignition And Detection Electrodes, Burner
IgnItIon and detectIon electrodes iGnitiOn and detectiOn electrOdes, burn- er and spark GeneratOr 18 .1 function Three electrodes are fitted on the fan-burner group. Two of them, fitted on the right side of the fan-burner group A, are the ignition electrodes B and are connected to the spark generator C. On the left side is the detection electrode D and it detects the pres- ence of the flame. -
Page 41: Removal Of The Front Insulation Panel
IgnItIon and detectIon electrodes 40). 3 Remove the front insulation panel (Figure 18.6). 4 Assemble the new front insulation carrying out the removal op- eration in reverse order. When fitting the new panel ensure that the electrodes holes coincide with the holes of the combustion chamber. burner gasket front insulation Siliconic gasket figure 18 .6 caution:... -
Page 42: Removal Of The Spark Generator
IgnItIon and detectIon electrodes 18 .6 removal of the spark generator warning: isolate the boiler from the mains electricity warning: isolate the boiler from the mains electricity supply before removing any covering or component . supply before removing any covering or component . 7 mm 1 Remove all the case panels and the sealed chamber lid. -
Page 43: Safety Thermostat
Safety thermoStat safety thermOstat 19 .3 removal warning: isolate the boiler from the mains electrici- 19 .1 function ty supply before removing any covering or compo- The safety thermostat A in Figure 19.1 is a device that senses nent . the temperature of the primary circuit water which flows in the outlet pipe of the condensing heat exchanger. -
Page 44: Flue Temperature Probe Ntc And Safety Ther
Flue temperature probe NtC aNd SaFety thermal FuSe flue temperature prObe ntc and safety shown in Figure 20.3) may be damaged and must be replaced. thermal fuse 20 .1 function The Flue temperature probe NTC A in Figure 20.1 and Figure 20.2 senses the temperature of the combustion products that flow through the condensing heat exchanger. -
Page 45: Condensate Trap
Condensate trap cOndensate trap 21 .1 function The condensate trap A in Figure 21.1 and Figure 21.2 allows the discharge of the condensate via the condensate drain pipe avoiding in the mean time the escape of combustion products. A plastic ball closes the trap outlet in case that the trap is empty. figure 21 .2 figure 21 .1 If the drain pipe becomes blocked, or condensate cannot drain,... -
Page 46: Short Spare Parts List
Short Spare partS liSt shOrt spare parts list G .c . part manufacturer manufacturer’s description Q .ty no . part no . reference H58 - 688 Burner (mod. M110B.24SM/..., M110B.24SR/...) BI1293 100 H58 - 689 Burner (mod. M110B.32SM/...) BI1293 101 E94 - 576 Expansion vessel BI1182 105 CIMM 7 litres... - Page 47 Short Spare partS liSt figure 22 .1 - 47 -...
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