QHT RIVA FP Operating instructions

BOILER SERVICE INSTRUCTIONS
MANUAL
)3
WALL HUNG GAS BOILER FOR
CENTRAL HEATING SUPPLY
Please Read Instructions Carefully
Save for Future Reference
— Do not store or use gasoline or other flammable vapors and liquids
in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone in your
building.
• Immediately call your 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 installer,
service agency or the gas supplier.
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
Manufactured by:
Biasi S.p.A.
Verona, Italy
Distributed By:
Quincy Hydronic Technologies, Inc.
Portsmouth, NH 03801
Phone: [phone]
Fax: [phone]
RIVA FP SERVICE MANUAL - REV A
*17562.0187.0*
17562.0187.0 0406 (49A4)USA

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First Part Service Manual
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RIVA FP SERVICE MANUAL – REV A 3
1 The Technical Manual
The aim of this manual is to provide technical
assistance operators with all the information
necessary to facilitate maintenance of Biasi
products.
To use this manual in the best possible way
and to find the information in it quickly it is
necessary to understand how it is laid out by
reading the following carefully:
2 Manual layout
The manual is divided into three different parts
(fig. 1).
The first part contains the general instructions
on how to use and consult the manual; the
nomenclature of the models illustrated in this
manual and the grouping criteria for each
family.
The second part contains booklets with
technical data, hydraulic and wiring diagrams,
troubleshooting 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
replacing and/or servicing.
fig. 1
Parts two and three are preceded by an index
that gives the contents and their order of
arrangement.
3 Topic, numbering, edition
The topic dealt with on each card is also shown
in the top right corner of each page, the part in
the top left corner The pages are numbered in
the bottom corner (fig. 2).
Technical sheet edition date (month and year)
is given between the Part and the Argument on
top of the page.
fig. 2
Part one is laid out with consecutive numbers
(fig. 3).
135
fig. 3
Part two is arranged on two levels (fig. 4). The
first gives the acronym of the family to which
the technical sheet belongs; the number that
follows indicates technical sheet order
sequence inside each family.
M130.30CR - 7
M130.30CR - 5
M130.30CR - 3
M130.30CR - 1
first level second level
fig. 4
Part three is also arranged on two levels (fig.
5); the first is a number assigned to each
component, the second indicates technical

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First Part Service Manual
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RIVA FP SERVICE MANUAL – REV A 4
sheet order sequence. Correspondence
between component and number is given in the
index at the beginning of part three.
1-1 1-3 2-1 2-3
fig. 5
4 Updating
The evolution of Biasi products entails updating
the technical assistance personnel and relative
documentation.
The updated documentation which will be sent
to the Assistance Service Centres, whether in
the shape of a circular or technical sheets to be
added to the manual or to replace others, must
be properly inserted.
All technical service personnel must be
informed 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 characteristics (fig. 6)
M130.30CM
Max useful power in c.h.
30 = 30,00 kW (25 800 kcal/h)
C = Sealed Chamber
Boiler series
Combi Only
fig. 6
The information contained in this manual is
applicable to the following models:
M130.30CM
6 Serial number
Each unit has its own serial number, the
meaning of which is given in fig. 7.
N210250205
Progressive number
Gas Type
N = Natural
G = L.P.G.
Construction month and year
fig. 7
7 Series
The boilers are grouped into families in part two
of this manual, each group including models
with identical construction features and, hence,
with identical maintenance.
Within each family the models differ only in their
nominal thermal capacity or other
characteristics that do not call for different
maintenance.
Series Models
M130------------------|M130.30CM

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A
Summary
Page
OVERALL VIEW……………………………………………………………M130.30CM- 1
HYDRAULIC DIAGRAM…………………………………………………..M130.30CM- 1
ELECTRICAL DIAGRAM………………………………………………….M130.30CM- 2
GAS ADJUSTMENT DATA……………………………………………….M130.30CM- 3
FAULT FINDING……………………………………………………………M130.30CM- 4
CIRCUIT VOLTAGES…………………………………………………...…M130.30CM- 5
OPERATION LIGHTS……………………………………………………...M130.30CM- 6
START UP CHECKS……………………………………………………….M130.30CM- 6
GAS CONVERSION………………………………………………………..M130.30CM- 7

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A 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 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
2 Hydraulic Diagram
fig. 2

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A M130.30CM- 2
3 Electrical Diagram
ye bk wh gy bu rd
bk gy
gy
gy
M
~
t
probe NTC
C.h. temperature
COM
NO
M
~
COM
NO
NC
123 bk
bubn
rd
rd
gnyegywh
bu
rd
bk
bu
wh
gybugnye
bk bk
gygnye bu
bk
bk
bubu
bu
bu
rdbk
gygy
L N
rd bu bn gnye gnye
gnye bubn
burd
gnye
Flow Switch
Primary Circuit Pump
Valve
Gas
External controls
terminal
block
Electric supply
terminal
block
Fan Safety
Thermostat
Air Pressure
Switch
Ignition
Electrodes
Flame Detection
Electrode
bn - brown
bu - blue
bk - black
wh - white
rd - red
gy - grey
ye - yellow
gnye - green/yellow
wh
gy
rd
rd
bk
bu
bn
gy
ye wh bu rd
1
bk
rd
*
* ---> directly connected to the electronic ignition board
fig. 3

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A M130.30CM- 3
4 Gas Adjustment Data
Maximum gas pressure at the injectors
Natural (G20)
Propane (G31)
inwc
inwc
5.3
9.0
Minimum gas pressure at the injectors
Natural (G20)
Propane (G31)
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)
ft³/h
lb/h
121.1
5.55
Minimum gas rate
Natural (G20)
Propane (G31)
ft³/h
lb/h
48.7
2.23
Injectors
Natural (G20)
Propane (G31)
n°/Ф14/130
14/89
Useful output KW
Kcal/h
10.8
9288
12.0
10320
14.0
12040
17.0
14620
20.0
17200
23.0
19780
26.0
22360
29.5
25370
Pa
inwc
220
0.88
250
1.00
330
1.32
470
1.89
640
2.57
830
3.33
1050
4.22
1330
5.34
Natural
m³/h 48.7 53.0 60.7 72.4 84.0 96.0 107.7 121.1
Pa
inwc
360
1.45
420
1.69
560
2.25
800
3.21
1080
4.34
1400
5.62
1760
7.06
2230
8.95
Propane
lb/h 2.2 2.4 2.8 3.3 3.9 4.4 4.9 5.5

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A M130.30CM- 4
5 Fault Finding

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Second Part M130.30CMMaintenance Characteristic Verification
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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
Thermostat
0
120~
Air pressure
Switch
00
Control p.c.b.
120~
Fan and Air Pressure
Device
120~
Fan and Air Pressure
Device
Full Sequence Device
120~
120~
Electrical voltages with burner on
1

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A M130.30CM- 6
7 Operation Lights
The Electronic control p.c.b. is provided with
three lamps (LED indicators) that give optical
information during the operation of the boiler.
The green lamp on the left gives information
whether the boiler is in stand-by mode or during
the normal operation of the boiler.
The following table gives the relationship
between the lamp indication and its meaning.
8 Start-up Checks
1) Connection to the gas supply system:
Check that current regulations have been
complied with and that safe running and use
are guaranteed.
Check that there are no leaks.
2) Gas supply pressure:
Check gas supply pressure at valve input
when the boiler is off and when it is running
at full power. Carry out 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 connected to the
electrical protection system (earth).
4) Check the C.h. circuit:
Check that the circuit is properly filled at a
suitable pressure and that there are no leaks
Check it is correctly bled of air.
5) Combustion by-product expulsion system:
Check that the flue pipe and the air intake
pipe have been made correctly and
mechanical stability is guaranteed.
6) Correct operation:
When starting the boiler check the burner
maximum, minimum and ignition gas
pressures.
Check that the Venturi pressure is sufficient
to ensure proper operation.
Check that the unit runs properly in the c.h.
mode using the function knob of the control
panel.
7) Safety and control devices:
Check that safety thermostat, ignition device,
air pressure switch, and the main circuit flow
switch work properly.
8) Instruct the user on how to use the unit
correctly and explain to him the functions of
the external commands, the actions he
needs to take and what to do in case of
malfunction or emergency.

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A M130.30CM- 7
9 Gas Conversion
1) Check that the gas cock fitted on the gas
supply pipe is turned off and the appliance is
switched off at the circuit breaker.
2) Remove the front and side panels of the case.
3) Take off the lid of the sealed chamber.
4) Remove the front panel of the combustion
chamber.
A
A
7
Figure 9.1
5) Loosen the screws A and remove the burner 7
(Figure 9.1).
6) Carry out the conversion for the type of gas,
replacing the burner injectors correctly.
7) Reassemble 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) Set correctly the dip-switch "2" to the correct
position (Figure 9.3) in accordance with the
following table.
Gas supply Position of the switch 2
Natural gas On
L.P.G. Off
ON
OFF
123
4
ON
OFF
1
2
34
Natural gas L.P.G.
Figure 9.5
11) Close the service panel.
12) Turn on the boiler.
13) Calibrate the gas valve according to the
instructions given in the section 7 of the third
part of this manual.
14) Set the correct gas pressure for central
heating output required.
15) Stick on the inside of the left hand side panel
adjacent to the data badge the self-adhesive
label (included with the conversion kit)
indicating the type of gas, and the gas
pressures to which the appliance has been
set.
16) Reassemble the front and side panels of the
case.

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Second Part M130.30CMMaintenance Characteristic Verification
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RIVA FP SERVICE MANUAL – REV A M130.30CM- 8

Summary
General Access and Emptying the Hydraulic Circuits
Nomenclature 1-1
Body Panels 1-1
Control Panel 1-2
Access to the Sealed Chamber 1-2
Emptying the Primary Circuit 1-2
Primary Heat Exchanger
Function 2-1
Removal 2-1
Cleaning 2-2
Pump
Function 3-1
Checks 3-1
Removal 3-1
Three Way Diverter Valve
Function 4-1
Checks 4-1
Removal of Electric 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 Selectors 5-3
Ignition Gas Pressure Adjustment 5-4
Max C.h. Power Regulation 5-4
Anti-frost System 5-4
Uniform Temperature System 5-4
Hydraulic Parts Checking System 5-4
Advanced Probe Control System 5-4
Checks 6-5 Removal of the Control p.c.b. 5-5
Thermal Control in Winter Mode 5-6
Thermal Control in Summer Mode 5-6
RIVA FP SERVICE MANUAL - REV A

Fan and Air Pressure Device 11.61
Function 6-1
Checks 6-1
Removal 6-1
Full Sequence Ignition Device S4567A-1019
Function 7-1
Checks 7-1
Removal 7-1
Ignition and Control Sequence 7-2
Modulating Gas Valve
Function 8-1
Nomenclature 8-1
Adjustment 8-1
Checks 8-2
Removal 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 Temperature-Pressure Gauge
Function 11-1
Checks 11-1
Removal of the C.h. Expansion Vessel 11-1
Removal of the D.h.w. Expansion Vessel 11-2
Removal of the Temperature-Pressure Gauge 11-2
Temperature Probe NTC
Function 12-1
Checks 12-1
Removal 12-1
RIVA FP SERVICE MANUAL - REV A

Fan, Venturi Device and Air Pressure Switch
Function 13-1
Checks 13-1
Removal of the Fan 13-2
Inspection and Removal of the Venturi Device 13-2 Removal of the 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
Pump Resistance 16-1
Gas Valve Resistance 16-1
Temperature Probe NTC Resistance 16-1
Fan Resistance 16-1
Short Spare Parts List 17-1
RIVA FP SERVICE MANUAL - REV A

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Third Part (edition-0106) General Access and Emptying Hydraulic Circuits
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RIVA FP SERVICE MANUAL – REV A 1-1
1 Nomenclature
1
2
3
4
5
Figure 1
1) Right Side Panel
2) Front Panel
3) Control Panel Lid
4) Control Panel Cover
5) Left Side Panel
2 Body Panels
Warning: Isolate the boiler from the mains
electricity supply before removing 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 the front panel.
To remove the front panel remove screws A
(Figure 2) , lift the panel and remove it.
A
A
Figure 2
To remove the side panels, remove the screws B
(Figure 3) and loosen the screws C (Figure 3),
bring the base of the panels away from the boiler
(Figure 4) and lift them, freeing them from the top
hooks.
B
B
C
C
B
B
Figure 3
Figure 4
General Access and Emptying
Hydraulic Circuits
1) Nomenclature
2) Body Panels
3) Control Panel
4) Access to the Sealed Chamber
5) Emptying the Primary Circuit

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Third Part (edition-0106) General Access and Emptying Hydraulic Circuits
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RIVA FP SERVICE MANUAL – REV A 1-2
3 Control Panel
Warning: Isolate the boiler from the mains
electricity supply before removing any
covering or component.
To gain access to the parts located inside the
control panel proceed as follows:
1) Remove the front panel of the case.
2) Loosen the screws and B and C (Figure 3).
3) Move the lower part of the side panels as
indicated in Figure 4 and pull the control
panel. When completely 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 access to the electronic control p.c.b.
and the fan and air pressure device remove
the screws E and remove the control panel lid
(Figure 5).
4 Access to the Sealed Chamber
To gain access to the parts contained in the
sealed chamber it is necessary to remove the lid
of the sealed chamber.
For this purpose, remove the front and side
panels of the case, remove the screws F as
indicated in Figure 6 and remove the lid.
F
F
Figure 6
5 Emptying the Primary Circuit
1) Close the pressure reducing automatic fill
valve.
2) Open the c.h. drain cock G (Figure 7).
3) Empty the C.h. System.
4) Close the c.h. drain cock G.
5) Open the pressure reducing automatic fill
valve.
G
Figure 7

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Third Part (edition-0106) Primary Heat Exchanger
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RIVA FP SERVICE MANUAL – REV A 2-1
1 Function
The primary heat exchanger A in Figure 1 has
the function of transferring heat produced from
combustion of the gas to the water circulating in
it.
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 lid.
4) Remove the front panel B of the combustion
chamber by unscrewing the screws C (Figure
3).
5) Remove the screw D and the deflector E.
6) Remove the clips F (Figure 3).
C
B
F
E
D
Figure 3
7) Loosen the connection G, rotate to the left and
then move downwards the pipe H freeing it
from the connection of the primary heat
exchanger (Figure 4).
G
H
I
J
Figure 4
Primary Heat Excanger
1) Function
2) Removal
3) Cleaning

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Third Part (edition-0106) Primary Heat Exchanger
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RIVA FP SERVICE MANUAL – REV A 2-2
8) Completely unscrew the connection J and
rotate the pipe I downwards 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 F with the arrow pointing upwards as
illustrated in Figure 3.
3 Cleaning
If there are deposits of soot or dirt between the
blades of the heat exchanger, clean with a brush
or non-metallic bristle brush.
In any case, avoid any actions that can damage
the protective varnish with which the exchanger
has been covered.