Biasi Riva ADVANCE SV User manual

USER MANUAL AND INSTRUCTIONS
Riva
ADVANCE SV
WALL HUNG GAS BOILER FOR
CENTRAL HEATING SUPPLY
Please Read Instructions Carefully
Save for Future Reference
— Do not store or use gasoline or other ammable 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. Fol-
low the gas supplier’s instructions.
• If you can not reach your gas supplier call the re department.
— Installation and service must be performed by a qualied installer,
service agency or the gas supplier.
WARNING: If the information in this manual is not followed
exactly, a re or explosion may result causing property dam-
age, personal injury or loss of life.
Quincy Hydronic Technology Inc.
3560 Lafayette Rd. Bldg. 2 Unit A
Portsmouth, NH 03801
Phone: [phone]
Fax: [phone]

2 RIVA ADVANCE USER MANUAL
Dear Customer:
Thank you for buying a Biasi Riva Advance SV.
The
central heat.
We realize that it is not possible to answer all questions about the Riva Advance SV in this
manual. Reading this installation manual does not make the reader an expert in all aspects
contractor. We urge you to contact your installing contractor or distributor if you are in question
instruments.
The external controls and accessories listed in this manual (excluding those supplied inside
-
alize that other makes and models of such devices are available and can be used as suc-
requirements, as well as the local availability of certain makes and models of controls and
accessories. The preceding does not apply, however, to the equipment that comes with every
devices supplied with every boiler is absolutely necessary to the safe operation of the boiler
and protection of the heating system.
All BIASI wall hung boilers are built in accordance with the ASME boiler and pressure vessel
code, and bear the “H” stamp. The Entire range of applications for the Riva Advance SV has
been tested to standard ANSI Z21.13/CSA4.9 and is CSA compliant.
This Riva Advance SV has a 2 year warranty, a copy of which is provided with the boiler.
Please be sure to return the warranty registration card as the warranty will be void without your
boiler’s serial numbers (located on the ratings label afxed to the boiler), date of installation
and the name of your installer being on record in our les.
Thank you for purchasing our Riva Advance SV. If you have questions or comments, please
don’t hesitate to contact us immediately. Our goal is 100% customer satisfaction.
QHT inc.

RIVA ADVANCE USER MANUAL 3
Table of Contents
Section Title Section Number Page Number
Warning - 4-5
Important Information - 6
General Information 1 7
Technical Information 2 7-8
Appliance Description 3 9
Overview 3.1 9
Control Panel 3.2 9
Piping Connections 3.3 9
LCD General Features 4 10-11
Instructions for Use 5 12-17
Warnings 5.1 12
Relling Procedure 5.2 12
Lighting/Operating Instructions 5.3 13
Temperature Unit Setting (°C or °F) 5.4 13
Central Heating Circuit Temperature 5.5 14-15
Extinguishing Instructions 5.6 15-16
Domestic Hot Water Temperature 5.7 16
Useful Advice 6 17-19
Central Heating 6.1 17
Frost Protection 6.2 17
Periodic Maintenance 6.3 17
External Cleaning 6.4 18
Operational Faults 6.5 18-19
Warranty 20

4 RIVA ADVANCE USER MANUAL
WARNING
DANGER
Boiler is certied as an indoor appliance. Do not install boiler outdoors or locate where it will
be exposed to freezing temperatures.
Caution: Do not store or use ammable materials, chemicals or ammable liquids,
especially gasoline, in the vicinity of this heating appliance.
Caution: Should overheating occur or the gas supply fail to shut off, do not turn off
or disconnect the electrical supply to the pump. Instead, shut off the gas supply at a
location external to the appliance.
Caution: Do not use this boiler if any part has been under water. Immediately call a
qualied service technician to inspect the boiler and to replace any part of the control
system and any gas control which has been under water.
— Do not store or use gasoline or other ammable 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 build-
ing.
• 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 re department.
— Installation and service must be performed by a qualied installer, ser-
vice agency or the gas supplier.
WARNING: If the information in this manual is not followed
exactly, a re or explosion may result causing property dam-
age, personal injury or loss of life.

RIVA ADVANCE USER MANUAL 5
WARNING
Any appliance that burns natural gas, propane gas, fuel oil, wood or coal is capable of pro-
ducing carbon monoxide (CO). Carbon Monoxide (CO) is a gas which is odorless, colorless
and tasteless but is very toxic. CO is lighter than air and thus may travel throughout the
building.
BRIEF EXPOSURE TO HIGH CONCENTRATIONS OF CO, OR PROLONGED EXPO-
SURE TO LESSER AMOUNTS OF CO MAY RESULT IN CARBON MONOXIDE POISON-
ING. EXPOSURE CAN BE FATAL AND EXPOSURE TO HIGH CONCENTRATIONS MAY
RESULT IN THE SUDDEN ONSET OF SYMPTOMS INCLUDING UNCONSCIOUSNESS.
Symptoms of CO poisoning include the following:
dizziness vision problems shortness of breath
headache loss of muscle control unclear thinking
nausea weakness unconsciousness
The symptoms of CO poisoning are often confused with those of inuenza, and the highest
incidence of poisoning occurs at the onset of cold weather or during u season.
A victim may not experience any symptoms, only one symptom, or a few symptoms.
Suspect the presence of carbon monoxide if symptoms tend to disappear when you
leave your home.
The following signs may indicate the presence of carbon monoxide:
• Hot gasses from appliance, venting system pipes or chimney, escaping into the living
space.
• Flames coming out around the appliance.
• Yellow colored ames in the appliance.
• Stale or smelly air.
• The presence of soot or carbon in or around the appliance.
• Very high unexplained humidity inside the building.
If any of the symptoms of CO occur, or if any of the signs of carbon monoxide are
present, VACATE THE PREMISES IMMEDIATELY AND CONTACT A QUALIFIED
HEATING SERVICE COMPANY OR THE GAS COMPANY OR THE FIRE
DEPARTMENT.
ONLY QUALIFIED, LICENSED SERVICE CONTRACTORS SHOULD PERFORM WORK
ON YOUR BIASI RIVA ADVANCE SV BOILER.

6 RIVA ADVANCE USER MANUAL
IMPORTANT INFORMATION
Please read this page carefully.
• ALL BOILERS MUST BE INSTALLED IN ACCORDANCE WITH NATIONAL, STATE
AND LOCAL PLUMBING, HEATING AND ELECTRICAL CODES AND ORDINANC-
ES, AS WELL AS THE REGULATIONS OF THE SERVING ELECTRICAL, WATER
AND GAS UTILITIES.
• All systems should be designed by competent contractors, and only persons
knowledgeable in the layout and installation of heating systems should attempt
the installation of any boiler. It is the responsibility of the installing contractor
to see that all controls are correctly installed and operating properly when the
installation is completed.
• This boiler is intended for use, only with propane or natural gas. All ammable
liquids (especially gasoline), chemicals, rags, paper, wood scraps, debris, etc.,
should be kept away from the boiler at all times. Keep the boiler area clean and
free of all re hazards.
• Please read the literature and warranties supplied by the manufacturers of the
various accessory equipment. This equipment is warranted by the respective
manufacturers, not by Quincy Hydronic Technology, Inc. Each piece of equip-
ment must be installed and used according to the recommendations of the man-
ufacturer.
Codes and Regulations:
Installation of the boiler and related equipment must conform to national, state and lo-
cal regulating agencies and codes applicable to the installation of the equipment. In the
absence of local requirements, the following codes apply:
A. ANSI/NFPA - #70 National Electric Code
B. ANSI/NFPA - #211 Chimneys and Vents
C. ANSI/NFPA - #Z223.1 National Fuel Gas Code
C. ANSI/NFPA - Domestic Gas Conversion Burner
D. CAN/CGA - B149 Installation Codes
E. ANSI/ASME - CSD-1
The above codes are available from:
National Fire Protection Association (NFPA) CANADIAN STANDARDS ASSOCIATION
Battery March Park STANDARDS DIVISION
Quincy, Massachusetts, 02269 5060 Spectrum Way, Suite 100
http://www.nfpa.org Mississauga, Ontario, L4W 5N6

RIVA ADVANCE USER MANUAL 7
1. General Information
2. Technical Information (M210.32 CV)
The Riva Advance SV is a high efciency condensing, wall mounted gas boiler which provides
central heat. The boiler features a gas valve which modulates the energy input from 32,000
BTU/h to 125,000 BTU/h. The boiler is shipped fully assembled. All units are pressure and
combustion tested at the factory prior to shipping.
Key Features:
• Wall mountable - saving valuable oor
space.
• Several ue options available
• Electronic spark ignition
• Safety ow switch - positioned on the
main circuit, which monitors the ow and
protects the main heat exchanger from
thermal shock should there be a lack of
water in the system.
• Frost protection - contains an integral frost
protection system to prevent frost dam-
age which can occur in areas susceptible
to very cold weather conditions.
• Boiler operation recognition system -
should the boiler not be used for longer
than 24 hours, it then performs a con-
trolled system test to ensuring the motor-
ized components within the boiler do not
become inoperable due to lack of use.
• Gas valve modulation - the gas input
modulates based off central heating tem-
perature to within ± 2 ºF
• Diagnostic information system equipped
with three LED diagnostic lights for quick
error assessment.
GENERAL
Height in 31.6
Width in 15.7
Depth in 13.8
Weight lb 109.5
ELECTRICAL
Voltage V120
Frequency Hz 60
Current A 1.6
Power consumption W180
RESTRICTORS
REFERENCES
Gas
(ø mm)
Air
(color)
Natural N/A BLUE
Propane 548 BLUE
CENTRAL HEATING
Maximum working temp. °F 185
Temp. Regulation range* °F 100-185
Maximum pressure psi 30.0
Minimum pressure psi 4.35
Max head loss (at 4.4 GPM) ft 8.25
*At the minimum useful output

8 RIVA ADVANCE USER MANUAL
2. Technical Information Cont.
ENERGY CAPACITY
Nominal heat input
(0/2000 ft) MBH 125.0
Nominal heat input
(2000/4500 ft) MBH 112.5
Minimum heat input MBH 32.0
Maximum useful output
(0/2000 ft) MBH 112.5
Maximum useful output
(2000/4500 ft) MBH 107.2
Minimum useful output MBH 28.8
GAS PRESSURE AT BURNER
Gas Min Max Ignition
Natural inwc 6.8 10.0 7.0
Propane inwc 10.0 13.0 11.0
FLUE DESIGN
Minimum Venturi pressure inwc 0.64
Flue pipe diameter
Coaxial in 2.25/4
3.25/5
Twin split pipes in 3.25/3.25
Nominal heat ow rate
(0/2000 ft) MBH 125.0
Nominal heat ow rate
(2000/4500 ft) MBH 112.5
Max Exhaust temperature °F 190
GAS FLOW RATE
Gas Min Max
Natural ft³/h 31.0 121.1
Propane lb/h 1.5 5.7
CLEARANCE TO COMBUSTIBLES
Front in 18
Back in 0
Top in 10
Sides in 2
Bottom in 8
Flue pipe enclosed in 2
Flue pipe free air in 0
Hot water pipes in 1”
FLUE GAS FIGURES
(at nominal heat input)
Gas Min Max
CO2 content with Natural gas 8.8% 9.8%
CO2 content with Propane gas 9.6% 11.0%
O2content 4.3% 5.0%
FLUE GAS FIGURES
(at minimum heat input)
Gas Min Max
CO2 content with Natural gas 8.8% 9.8%
CO2 content with Propane gas 9.6% 11.0%
O2content 4.3% 5.0%

RIVA ADVANCE USER MANUAL 9
3. Appliance Description
3.1 Overview:
1 Case front panel
2 Control panel
3 Control panel cover
3.2 Control Panel:
4 Pressure gauge
5 LCD
6 Boiler reset /setting button
7 Function switch and Central heating tem-
perature adjustment knob
8 Domestic hot water, temperature control
knob
45
6
7
8
bar
3
12
H
Figure 3.1
Figure 3.3
Figure 3.2
3.3 Piping Connections:
A Gas inlet pipe
B Main circuit drain cock
C C.h. supply copper pipe
D C.h. return copper pipe and tank serpen-
tine return
E D.h.w. tank coil ow
F Condensate drain connection area
AEC D
F
B

10 RIVA ADVANCE USER MANUAL
4. LCD General Features
The LCD (5 in Fig. 3.2) give detailed indication regarding the operation of the boiler.
Figure 4.1
LEGEND
The symbol indicates that the boiler
can be directly reactivated by the
user, by pressing the reset button
The symbol indicates that the fault
requires intervention on behalf of
specialised technical assistance
All symbols represented with lines
that surround them, indicate that the
symbol is ashing
SIGNAL DISPLAYED BY THE LCD
LCD FUNCTION
E01 + Lack of burner ignition on safety
lockout
E02 + Safety thermostat intervention
lockout
E03 +
General lockout
E10 +
Flue probe intervention lockout
E11 +
Flame detection error
E04 + Faulty primary circuit (no water or
absence of ow)
E05 +
Faulty fan control system
E06 +
Faulty c.h. temp. probe NTC
E07 +
Faulty d.h.w. temp. probe NTC
E08 +
Faulty external temp. probe NTC
E09 + Faulty ue temp. probe NTC
(interruption)
L01 Primary circuit temp. limit during
D.h.w. operation
The ashing symbol indicates
the communication between LCD
and the card
Boiler in winter mode
(C.h.+ D.h.w.)
Boiler in summer mode (D.h.w.)
Boiler in winter standby
Hot water + heating mode
(symbol ashing)
Boiler in summer standby
Hot water mode
(symbol ashing)
OFF Boiler powered and selector OFF
(symbol ashing)
bar
Remote connected
bar
External temperature control
probe connected

RIVA ADVANCE USER MANUAL 11
Boiler on demand for C.h. power
(symbol ashing)
25.....85
Boiler requesting heating power
with external probe connected
(symbol ashing)
25.....85
bar
Heating temperature control with
delivery sensor
(upper probe)
Boiler on demand for D.h.w. pow-
er (symbol ashing)
35.....60
Preheating enabled
Preheating enabled
(symbol ashing)
35.....60
5.....35
Boiler in anti-freeze phase
(symbol ashing + temperature
ashing)
Burner ignition
(spark)
Flame present
(Burner on)
bar
Pump operating
C
Variable temperature expressed
in °C
bar
Variable expressed in bar
(if the pressure sensor is installed)
Set D.h.w.
(visible for 10 sec)
(all other symbols are disabled)
(symbol ashing)
35.....60
Set C.h.
(visible for 10 sec)
(all other symbols are disabled)
(symbol ashing)
25.....85
Default parameter reset.
Reset is performed only by setting the cor-
rect value and all symbols will turn on.
Boiler in chimney sweep functioning mode.
The chimney sweep is activated by setting
the correct parameter and is visualised by
the switching on of the hand and alternate
ashing between the temperature and the
communication and radiator symbol.
4. LCD General Features Cont.

12 RIVA ADVANCE USER MANUAL
5. Instructions For Use
5.1 Warnings:
• In order to guaranty safety and correct operation, it is essential that all the tests are carried
out by a competent and responsible licensed service person before lighting up the boiler.
• The tests are described in the installation, operation and service instructions manual in Sec-
tion 15 Commissioning.
• Ensure that the Central Heating circuit is regularly lled with water checking that the pres-
sure indicated on the pressure gauge (4 on gure 3.2) is not lower than 1 bar (14.5 psi) as
shown on gure 5.1.
• If the pressure reading on the pressure gauge is below 1 bar (14.5 psi), then the system will
require lling. An automatic lling valve is normally provided by the installer for this purpose.
• If you are in any doubt regarding this procedure you are advised to contact your In-
staller or an Approved Service Person.
• This appliance is provided with a built in anti-freeze system that operates the boiler when
the temperature is below 41 °F.
• Therefore, when the boiler is not lit or used in cold weather, with consequent risk of freezing
do not switch off the boiler at the circuit breaker or close the gas inlet cock.
• When you expect not to use the boiler for a long period follow the instructions given in sec-
tion 5.6 on page 15.
5.2 Relling procedure:
• Isolate the boiler from the electrical sup-
ply at the circuit breaker.
• The boiler should have been installed with
an automatic ll valve, external to the unit.
Open the cold water supply to the auto-
matic ll valve.
• The pressure should be 1 – 1,5 bar (14.5
– 22 psi).
• The automatic ll valve should maintain
this pressure, but not exceed it.
Figure 5.1
Air introduced into the boiler during this lling process will vent through the automatic air purger
tted to the boiler. You may also nd it necessary to vent air from your heating circuit using the
installed vents, however be aware that excessive venting will cause the pressure in the system
to drop. Always ensure that the pressure gauge is set at the required pressure.

RIVA ADVANCE USER MANUAL 13
5. Instructions For Use Cont.
5.3 Lighting/Operating Instructions:
Warnings: Do not attempt to start the boiler unless all cleanout doors are secured
and sealed. Do not attempt to light the burner by hand.
1 Check that the cocks connected to the
gas inlet pipe and to the supply cold wa-
ter inlet pipe (see section 3.3 for pipes)
are open.
2 Power the boiler electrically by setting the
power switch foreseen in the installation.
The LCD display shows the sequence
(gure 5.2).
3 If the appliance will not operate, follow
the extinguishing instructions on page 14
and call your service technician or gas
supplier.
Figure 5.2
5.4 Temperature unit setting (°C or °F):
The Function switch and Central heating temperature adjustment (7) knob must be in OFF
position.
Press the boiler reset/setting button (6) and simultaneously rotate the domestic hot water tem-
perature control (8) knob to:
• position 1 for °C unit (gure 5.3)
• position 7 for °F unit (gure 5.4)
By releasing the boiler reset/setting button (6), the display indicates the temperature in the
chosen unit.
Figure 5.3
6
7
8
Figure 5.4
6
7
8

14 RIVA ADVANCE USER MANUAL
5.5 Central Heating Circuit Temperature:
1 Turn the selector 7 as in Figure 5.5.
2 The output temperature of c.h. water is
adjustable from a minimum of about 100
°F to a maximum of about 185 °F (Figure
5.5), by turning the knob 7.
3 The LCD display shows the sequence in
Figure 5.6.
4 Adjustment of the boiler temperature al-
ters the gas ow at the burner according
to the thermal demand in the system. So
it is usual to see the burner lit at the mini-
mum level for more or less long periods.
5 Adjustment of central heating. Output on
the boiler is automatic. The greatest out-
put is factory pre-set, however, it can be
reduced according to actual system re-
quirements. These adjustments must be
carried out by a qualied person; there-
fore we advise you to contact your install-
er or Service Agent.
Figure 5.5
8 7
Figure 5.6
5. Instructions For Use Cont.

RIVA ADVANCE USER MANUAL 15
5. Instructions For Use Cont.
Adjustment:
• In order to achieve optimal settings for
economy and comfort, we recommend
adjusting the operating temperature of
the central heating water according to the
outside temperature, positioning the knob
as in gure 5.7.
• Your installer may have installed addi-
tional energy saving equipment and will
be able to recommend the most suitable
adjustment for your system.
• The LCD indicates if the set temperature
has been reached.
Request for heating power.
If the boiler requests heating power, you
can see the sequence on the LCD display
in Figure 5.8.
Figure 5.7
From 41 to 59°F Between 23 and 41°F
Lower than 23°F
Figure 5.8
5.6 Extinguishing Instructions:
• To turn the boiler off set the function selec-
tor 7 to the position shown in the Figure
5.9.
• Signal given by the LCD display Figure
5.10.
• Turn off electric power to the appliance
at the circuit panel of boiler serviceman’s
switch. Figure 5.9
87
Figure 5.10

16 RIVA ADVANCE USER MANUAL
When you expect not to use the boiler for a long period:
• Switch off the electricity supply to the boiler, by means of the circuit breaker;
• Shut off the gas supply cock connected to the gas inlet pipe and the cock connected to the
supply cold water inlet pipe (see section 3.3 for pipes);
• Empty the water circuit, if necessary, as shown in the installation, operation and service
instructions manual in the maintenance section.
5. Instructions For Use Cont.
5.7 Domestic hot water temperature:
With the tank connected and NTC tank
probe:
The temperature of the hot water contained
in the tank can only be adjusted if the tank
has a specic NTC probe that detects the
temperature.
The temperature of the domestic hot water
contained in the tank can be adjusted to a
maximum of approx. 140 °F, turning the boil-
er setting knob indicated in Figure 5.11.
If there is a large amount of limestone in the
water, a small water softener should be in-
stalled.
To avoid any risks related to the formation of
microorganisms (legionella) in the domestic
hot water, activate the antilegionella function
(see “Antilegionella function” on page 26 to
Installer manual).
This function raises the temperature of the
water in the tank to above 149 °F for a cer-
tain period of time, thereby eliminating any
microorganisms in the water.
Figure 5.11
Minimum
Maximum
With the tank connected and tank ther-
mostat:
The temperature of the tank serpentine de-
livery water can be changed by turning the
boiler setting knob in Figure 5.11. For opti-
mal tank efciency, the knob shown in Figure
5.11 should be set to the maximum.

RIVA ADVANCE USER MANUAL 17
6. Useful Advice
6.1 Central Heating:
• For easy operation of the boiler, a room
thermostat should be installed.
• Never shut off the radiator in the area
where the room thermostat is installed.
• If a radiator (or a convector) does not heat
up, check that no air is present in it and
that its valve is open.
• If the ambient temperature is too high, do
not alter the radiator valves. Reduce the
central heating temperature instead by
means of the room thermostat and the
knob (7 in Fig. 6.1).
Figure 6.1
7
6.2 Frost Protection:
• The built in antifreeze system protects the boiler from possible damages due to the freezing
temperatures.
• This system doesn’t guaranty the protection of the whole central heating system.
• In the case that the external temperature may be lower than 32 °F it is suggested to leave
the system running setting the room thermostat at a low temperature.
• When the boiler is completely switched off for a long period, it is recommended to empty
completely central heating circuit.
6.3 Periodic Maintenance:
• For efcient and continuous operation of the boiler, it is advisable to arrange maintenance
and cleaning by an Authorised Service Person, at least once a year.
• During the service, the most important components of the boiler will be inspected and
cleaned. This service can be part of a maintenance contract.
In particular, you are advised to have the following checks carried out:
• primary heat and domestic hot water exchanger;
• burner;
• exhaust fume duct and ue;
• pressurization of the expansion vessel;
• lling up of the central heating circuit;
• bleeding of air from the central heating system;
• general check of the appliance’s operation;
• check the condensate trap.

18 RIVA ADVANCE USER MANUAL
6. Useful Advice Cont.
6.4 External Cleaning:
• Before performing any cleaning, disconnect the appliance from the electrical mains, using
the dedicated circuit breaker or serviceman’s switch located adjacent to the appliance.
• To clean the external panels, use a cloth soaked in soapy water. Do not use solvents, abra-
sive powders or sponges.
• Do not carry out cleaning of the appliance and/or its parts with readily ammable substanc-
es (for example petrol, alcohols, naphtha, etc.).
6.5 Operational Faults:
If the lock-out signal lamp comes on:
• If the boiler does not function and the
LCD displays a code that starts with an
E and the symbol (see “General LCD
features” on page 10) the boiler has shut-
down.
• To restore its operation, press the reset
button 6 Figure 6.2 on the boiler control
panel.
• Signal given by the LCD display Figure
6.3.
• For the rst light up and following main-
tenance procedures for the gas supply, it
may be necessary to repeat the resetting
operation several times so as to remove
the air present in the pipework.
Figure 6.2
6
Figure 6.3
If noises due to air bubbles are heard during operation:
• You should check that the pressure on the pressure gauge (Fig. 5.1 on page 12) is not be-
low the correct setting.
• If required, ll up the system correctly, as described in the section 5.2 of this manual.
• Bleed any air present in the radiators, if necessary.
If the pressure on the pressure gauge (Figure 5.1 on page 12) has gone down:
• It is necessary to ll up the appliance with water again, so as to raise the pressure to an
adequate level as described in the section 5.2 of this manual.
• If lling up with water has to be done very frequent, have the system checked for leaks.

RIVA ADVANCE USER MANUAL 19
6. Useful Advice Cont.
If water comes out of the pressure relief valve pipe H in Fig. 6.4:
• Check on the pressure gauge (gure 5.1 on page 12) that the pressure in the central heat-
ing circuit is not close to 2 bars (30 psi). In this case, temperature rise in the circuit can
cause the pressure relief valve to open.
• So that this does not happen and to decrease the pressure to a normal value, it is advisable
to vent some of the water in the appliance through the bleed valves present in the heating
system.
Figure 6.4
312
H
If water should occasionally leak from the boiler:
• Close the cocks connected to the inlet gas pipe and to the domestic cold water inlet pipe
under the boiler and call an Authorized Service Person.
In case of problems other than those mentioned here, switch off the boiler, as described
in Section 5.6 on page 15 and call a competent and responsible service person.

20 RIVA ADVANCE USER MANUAL
Warranty
For RIVA Residential
Wall Hung Gas Boilers
FIRST 2 YEARS-WARRANTY FOR RIVA SERIES
RESIDENTIAL HOT WATER BOILERS: QHT warrants
that its wall hung boiler and casing are free from de-
fects in material and workmanship for 2 years from the
date of installation. If any part on the boiler is found to
be defective within this period, QHT will replace the
part free of charge.
FIRST 10 YEARS-WARRANTY FOR RIVA SERIES
RESIDENTIAL HOT WATER BOILERS: Biasi warrants
that the stainless steel heat exchanger of the RIVA
boilers are free from defects in material and workman-
ship for 10 years from the date of installation. If the
stainless steel heat exchanger is found to be defec-
tive within the rst 10 years after installation, QHT and
Biasi will replace the stainless steel heat exchanger.
These warranties are subject to the condition that a
heating contractor whose principal occupation is the
sale and installation of heating equipment must have
installed the boiler. PARTS, WHICH ARE COVERED,
consists of all materials supplied by Biasi, identied by
QHT’s part numbers in its literature. Other parts sup-
plied by the installer carry their own warranty and each
manufacturer has responsibility for its own products.
NOTE: ANY PART, WHICH IS REPLACED UNDER
WARRANTY, CARRIES ONLY THE UNEXPIRED
PORTION OF THE ORIGINAL WARRANTY.
OWNER RESPONSIBILITIES:
1. Provide for proper installation, which includes pres-
sure relief and pressure reducing valves and high
limit safety controls on closed systems.
2. Provide qualied periodic service to prolong proper
operation and service.
3. Insure that boiler is installed in accordance with all
codes and ordinances.
4. This warranty does not apply to boilers, which are
subject to misuse, abuse, neglect, alteration, acci-
dent, excessive temperature, excessive pressure,
or corrosive water or atmosphere.
5. Owner will be responsible for return of faulty com-
ponents to Portsmouth, NH, freight pre-paid.
QHT and Biasi will not be responsible for:
1. Components that are part of the heating system,
but were not manufactured by Biasi or QHT as part
of the boiler.
2. The workmanship of the installers of RIVA boilers.
Furthermore, this warranty does not assume any
liability for unsatisfactory performance caused by
improper installation.
3. Any costs for labor to remove or replace the faulty
component.
4. Improper boiler application or adjustments, control
settings, care or maintenance.
5. Any damage associated with corrosion or leakage
due to the use of “non-barrier”, plastic pipe in the
heating system.
*IMPLIED WARRANTIES OF FITNESS FOR A PAR-
TICULAR PURPOSE AND MERCHANTABILITY
SHALL BE LIMITED TO THE DURATION OF THE EX-
PRESSED WARRANTY. BIASI AND QHT EXPRESS-
LY DISCLAIM AND EXCLUDE ANY LIABILITY FOR
CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR
BREACH OF ANY EXPRESSED OR IMPLIED WAR-
RANTY.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, AND YOU MAY HAVE OTHER RIGHTS
THAT VARY FROM STATE TO STATE.
For prompt warranty service, notify the installer, who,
in turn, will notify the distributor from whom the boiler
was purchased. If this does not result in corrective
action, contact Biasi through Quincy Hydronic Tech-
nology (Address Below) with details in support of the
warranty claim. All claims must be processed through
proper trade channels. Contact with Biasi directly is not
recommended for rapid claim settlement.
Quincy Hydronic Technology Inc.,
3560 Lafayette Road, Bldg. 2, Unit A
Portsmouth, NH, 03801
Tel. [phone]
BIASI BOILER WARRANTY REGISTRATION
IMPORTANT., Registration required. To gain complete warranty
Protection, ll in and mail this card, within 1 year of installation to the address listed below
NAME:____________________________________ ADDRESS:____________________________
CITY:______________________ STATE:________ ZIP:______________
BOILER SERIAL NO.: _______________________ DATE OF INSTALL:_____________________
NAME OF INSTALL CO.:_____________________ ADDRESS:____________________________
CITY:______________________ STATE:________ ZIP:____________
RETURN TO: QHT, INC., 3560 Lafayette Road, Bldg. 2 Unit A, PORTSMOUTH, NH 03801