QHT RIVA FP Service Instructions Manual Download Page 6

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Second Part M130.30C

Maintenance Characteristic Verification

_______________________________________________________________

RIVA

SERVICE MANUAL – REV A

M130.30C

- 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 pressure

switch

Air pressure

switch test points

Fan

C.h. PRV

Modulation

operator

Safety

thermostat

Control

panel

C.h. temp.

probe NTC

Gas valve inlet

pressure test point

Gas valve outlet

pressure test point

Primary circuit

flow switch

Hydraulic Diagram

fig. 2

Summary of Contents for RIVA FP

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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