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By---pass valve

Function

The By---pass valve

in Fig. 1 is located between the

changer if thecirculation acrossthe c.h.system iscom-

pletely closed.

erter group.

Fig. 1

Removal

Warning: isolate the boiler from the mains

electricity supply before removing any

covering or component.

Remove all the case panels.

Empty the primary circuit of the boiler.

Remove the diverter group as described in the

section 8.4 of this manual.

Unscrew the connector

and remove the by---

pass valve

(Fig. 2).

Fig. 2

Reassemble the by---pass valve as illustrated in

Fig. 2 reversing the order of removal.

(edition-0106)

Third Part

RIVA FP SERVICE MANUAL - REV A

12-1

Содержание RIVA FP

Страница 1: ...ur gas supplier from a neighbor s phone Follow the gas supplier s instructions If you can not reach your gas supplier call the fire department Installation and service must be performed by a qualified...

Страница 2: ...oting instructions and start up checks grouped into product families The third part contains the technical data sheets relative to each component its basic characteristics checking its condition and r...

Страница 3: ...med immediately of their contents 5 Models All models of products manufactured are identified with a name This name from here referred to as model is determined by the unit construction characteristic...

Страница 4: ..._______________________________________________________________ RIVA FP SERVICE MANUAL REV A Summary Page OVERALL VIEW M130 30CM 1 HYDRAULIC DIAGRAM M130 30CM 1 ELECTRICAL DIAGRAM M130 30CM 2 GAS ADJU...

Страница 5: ...________________________________________________________________________ Second Part M130 30CM Maintenance Characteristic Verification _______________________________________________________________ R...

Страница 6: ...M130 30CM 1 1 Overall View Pump Pump vent plug Automatic air purger valve Modulation gas valve Flame detec ting electrode Ignition electrodes Burner Combustion chamber Primary heat exchanger Air pres...

Страница 7: ...e COM NO M COM NO NC 1 2 3 bk bu bn rd rd gnye gy wh bu rd bk bu wh gy bu gnye bk bk gy gnye bu bk bk bu bu bu bu rd bk gy gy L N rd bu bn gnye gnye gnye bu bn bu rd gnye Flow Switch Primary Circuit P...

Страница 8: ...31 inwc inwc 0 8 1 4 Ignition pressure Natural G20 Propane G31 inwc inwc 2 4 5 2 Maximum gas rate Natural G20 Propane G31 ft h lb h 121 1 5 55 Minimum gas rate Natural G20 Propane G31 ft h lb h 48 7 2...

Страница 9: ...__________________________________________________________ Second Part M130 30CM Maintenance Characteristic Verification _______________________________________________________________ RIVA FP SERVICE...

Страница 10: ...________________________________________ RIVA FP SERVICE MANUAL REV A M130 30CM 5 6 Circuit Voltages Flow Switch Primary Circuit Pump Supply Network Gas Valve 0 120 120 24 Control p c b 0 3 Fan Safety...

Страница 11: ...t the same check if there are any other user points on 3 Connection to the electrical system Check for proper connection to the power supply and to external control devices Check that the unit is conn...

Страница 12: ...the burner the front panel of the combustion chamber and the lid of the sealed chamber 8 Extract the control panel 9 Loosen the screws D and remove the service panel Figure 9 2 D D D Figure 9 2 10 Se...

Страница 13: ...__________________________________________________________________ Second Part M130 30CM Maintenance Characteristic Verification _______________________________________________________________ RIVA FP...

Страница 14: ...c Actuator 4 1 Removal of Diverter Group and Its Internal Parts 4 2 Control p c b 11 62 Function 5 1 Selection and Adjustment Devices 5 1 Checking the Temperature 5 2 Operation Lights 5 2 Dip switch S...

Страница 15: ...val of the Gas Valve 8 2 Primary Circuit Flow Switch Function 9 1 Checks 9 1 Removal 9 1 DHW Flow Switch Filter Function 10 1 Nomenclature 10 1 Checks 10 1 Removal 10 1 Expansion Vessels and Temperatu...

Страница 16: ...Air Pressure Switch 13 2 Ignition and Detection Electrodes Burner and Injectors Function 14 1 Checks 14 1 Removal 14 1 Safety Thermostat Function 15 1 Checks 15 1 Removal 15 1 Electric Resistances Pum...

Страница 17: ...any covering or component For the most part of the check and maintenance operations it is necessary to remove one or more panels of the case The side panels can be removed only after the removal of t...

Страница 18: ...pulled out the panel can rotate 45 downwards to facilitate the service operations on the internal parts D D D E E E E E Figure 5 4 Remove the screws D and remove the service panel Figure 5 5 To gain a...

Страница 19: ...A Figure 1 The hydraulic circuit is composed of 8 elliptical pipes connected in parallel Figure 2 Figure 2 2 Removal 1 Remove the case panels 2 Empty the primary circuit 3 Remove the sealed chamber li...

Страница 20: ...ds freeing it from the heat exchanger connection Figure 4 9 Remove the heat exchanger by sliding it forwards 10 Reassemble the boiler carrying out the removal operations in reverse order Fit the clip...

Страница 21: ...igure 2 removing the pump power supply cable and measuring the resistance of said wiring Electrical resistance of the windings at ambient temperature must be about 51 7 Figure 2 C Check the absence of...

Страница 22: ...ght Figure 4 H I J K Figure 5 8 Loosen the connector H 9 Disconnect the connectors I and pull out the power supply cable from the pump 10 Loosen the connection J and remove the pipe K L Figure 6 11 Un...

Страница 23: ...tor B brassspindle when the boiler operates in c h mode the actuator and the resistance of the motor windings the motor must be disconnected from the wiring is also given B w h r d b k rd red wh white...

Страница 24: ...crew the connector I the c h o w connector and the d h w outlet connector F G I H Fig 5 7 Remove the d h w heat exchanger see section 6 2 8 Remove the fork J and move away the pipe K Fig 6 9 Unscrew t...

Страница 25: ...d operating in order to keep the temperature of the hydraulic circuits constant This is obviously possible within the useful power and maximum working temperature limits foreseen Generally the Control...

Страница 26: ...hing OFF ON OFF function If the power requested is higher then the burner is switched ON at maximum power and will control by modulating to 40 of the max power output Figure 2 During the c h operation...

Страница 27: ..._________________________________________________________________________________ Third Part edition 0106 Control p c b 11 62 _______________________________________________________________ RIVA FP SE...

Страница 28: ...s pressure at the burner on the modulation operator of the gas valve After any adjustment operation the selector has to be brought back to the normal position ON O Selector 2 This selects the boiler f...

Страница 29: ...low 5 C The request is signalled by the LED F in Figure 1 If there is no gas the pump runs continuously to keep the water from freezing This function is also active in standby mode 9 Hydraulic Parts C...

Страница 30: ...edge and ensure that no wiring is trapped beneath 8 Insert the spindle in the control panel knob untill the notch M Figure 11 reaches the potentiometer edge It is not necessary to force it in the kno...

Страница 31: ...MANUAL REV A 5 6 12 Thermal Control After 25 second circulator off and faulty primary cir cuit see LED table Switch in the function mode Request for heat from room thermostat Circulator off Operates m...

Страница 32: ...e device can be reset only by using the boiler reset button and the function knob placed on the control panel Some components which are connected to the device can activate the lock state The causes o...

Страница 33: ...t button and the function knob placed on the control panel The ignition device has some components connected to it which can cause triggering of the shutdown condition these components are the modulat...

Страница 34: ...the four clamps H two on top and two on bottom of the device Figure 3 6 Re assemble the device following the removal procedures in the reverse order 4 Ignition and Control Sequence Shutdown memorised...

Страница 35: ...f operators G Gas valve inlet pressure test point H Gas valve outlet pressure test point I Modulation operator 3 Adjustment Warning isolate the boiler from the mains electricity supply before removing...

Страница 36: ...l resistance of the coil Its electrical resistance value must be approx 114 B Check the on off operators coils 1 Remove the front panel of the case 2 Disconnect the Ignition device N Figure 4 3 Measur...

Страница 37: ...ult condition has occurred 2 Checks Warning Isolate the boiler from the mains electricity supply before removing any covering or component A Mechanical function 1 Remove the front panel of the case 2...

Страница 38: ...wiring connectors on the switch C D Figure 4 B Removal of the membrane 1 Remove the front and side panels of the case and empty the primary circuit 2 Remove the fork C that holds the micro switch hous...

Страница 39: ...3 O ring 4 Spring 5 Magnetic ring 6 Float 7 Threaded ring 8 Flow limiter optional acces sory 9 Filter 10 Spring seat 5 6 4 9 2 8 7 3 1 Fig 3 3 Checks Warning isolate the boiler from the mains electric...

Страница 40: ...ve on the top of the c h expansion vessel and connect a suitable air pressure gauge 3 Check the pre load pressure It would be 14 5 psi C Figure 2 3 Removal of the C h Expansion Vessel 1 Remove the fro...

Страница 41: ...ressure Gauge _______________________________________________________________ RIVA FP SERVICE MANUAL REV A 11 2 G F Figure 4 4 Remove the probe holder spring H freeing the probe I Figure 5 H I Figure...

Страница 42: ...tricity supply before removing any covering or component 1 Remove all the case panels 2 Empty the primary circuit of the boiler 3 Remove the diverter group as described in the section 8 4 of this manu...

Страница 43: ...l resistance of the motor that has to be about 7 2 D E F Figure 2 B Check of the Air pressure switch operation Warning Isolate the boiler from the mains electricity supply before removing any covering...

Страница 44: ...oval operations in reverse sequence Warning Re assembling the fan ensure that the hooks around the inlet port of the fan hung correctly on the flue hood Warning To correctly connect the venturi device...

Страница 45: ...the correct distance between the metallic edges of the ignition electrodes see Figure 2 Ignition 0 16 in Figure 2 3 Check the integrity of the detection electrode and ensure that its metallic edge is...

Страница 46: ...rodes Burner and Injectors _______________________________________________________________ D Figure 4 6 Extract the electrodes from the burner 7 Re assemble the parts carrying out the removal operatio...

Страница 47: ...aximum position and run the boiler 2 Allow the boiler to reach its maximum operating temperature monitor the temperature gauge on the instrument panel The boiler should maintain a temperature below th...

Страница 48: ...edition 0106 Safety Thermostat _______________________________________________________________ C D Figure 3 5 Re assemble the parts carrying out the removal operation in reverse order 6 Apply an adequ...

Страница 49: ...f the electric resistances in of the boiler parts 1 Pump Resistance Figure 1 Pump Resistance 51 7 2 Gas Valve Resistance 114 Figure 2 On off operator approx 1 122 at ambient temperature Figure 5 3 Tem...

Страница 50: ...ber Front Panel 1 BI1366 109 9 Combustion Chamber Rear Panel 1 BI1326 108 10 Combustion Chamber Left Panel 1 BI1326 100 11 Combustion Chamber Right Panel 1 BI1326 100 12 Control p c b 1 BI1555 107 Cez...

Страница 51: ..._____________________________________________ Third Part edition 0106 Short Spare Parts List _______________________________________________________________ 12 1 2 3 5 6 7 4 8 16 10 20 21 22 24 15 17...

Страница 52: ...___________________________________________________________________________________ _____ ___ ____ edition 0106 _______________________________________________________________ RIVA FP SERVICE MANUAL R...

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