Biasi riva User manual

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Riva HEAT ONLY
WALL HUNG GAS BOILER FOR
CENTRAL HEATING SUPPLY
48
USER MANUAL AND INSTRUCTIONS
— 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.
80 Rochester AVE. Suite # 12
Portsmouth, NH 03801
Phone: [phone]
Fax: [phone]
RIVA HEAT ONLY USER MANUAL - REV
A

RIVA HEAT ONLY USER MANUAL - REV A 2

RIVA HEAT ONLY USER MANUAL - REV A 3
Dear Customer:
Thank you for buying a Biasi Riva Heat Only Boiler System.
The Riva Heat Only is a high efficiency, non-condensing, wall mounted gas boiler which
provides central heat and domestic hot water.
We realize that it is not possible to answer all questions about the Riva boiler system in
this manual. Reading this installation manual does not make the reader an expert in all
aspects of installation and operation, and does not replace the need for a qualified,
licensed heating contractor. We urge you to contact your installing contractor or distributor
if you are in question about any aspect of your boiler's performance. Our main concern is
that you are satisfied with your boiler and its performance. We require that your contractor
complete efficiency tests using instruments.
The external controls and accessories listed in this manual (excluding those supplied
inside the boiler) are intended to serve as guidelines rather than specific
recommendations. We realize that other makes and models of such devices are available
and can be used as successfully as those we specify. The installing contractor is the best
judge of a system's specific 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 boiler, such as the overheat control and pressure relief
valves. The installation of the specific 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 Heat
Only has been tested to standard CSA 4.9 and is CSA compliant.
This Riva boiler 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 affixed to the boiler), date of
installation and the name of your installer being on record in our files.
Thank you for purchasing our Riva Heat Only boiler. If you have questions or comments,
please don't hesitate to contact us immediately. Our goal is 100% customer satisfaction.
QHT inc.

Table of Contents
Section Title Section Number Page
Warnings - 5-6
Important Information - 7
General Information 1 8
Technical Information 2 8-9
Appliance Description 3 10
Operation Lights 4 11
Instructions for Use 5 12-14
Warnings 5.1 12
Refilling Procedure 5.2 12
Lighting/Operation Instruction 5.3 13
Central Heating Circuit Temp. 5.4 13-14
Extinguishing Instructions 5.5 14
Useful Advice 6 15-17
Central Heating 6.1 15
Frost Protection 6.2 15
Periodic Maintenance 6.3 15
External Cleaning 6.4 16
Operational Faults 6.5 16-17
Warranty 19
RIVA HEAT ONLY USER MANUAL - REV A 4

Boiler is certified as an indoor appliance. Do not install boiler outdoors or locate where
it will be exposed to freezing temperatures.
W
ARNING
— 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.
Caution: Do not use this boiler if any part has been under water. Immediately
call a qualified service technician to inspect the boiler and to replace any part of
the control system and any gas control which has been under water.
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 store or use flammable materials, chemicals or flammable
liquids, especially gasoline, in the vicinity of this heating appliance.
DANGER
RIVA HEAT ONLY USER MANUAL - REV A 5

Any appliance that burns natural gas, propane gas, fuel oil, wood or coal is capable of
producing 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 EXPOSURE TO LESSER AMOUNTS OF CO MAY
RESULT IN CARBON MONOXIDE POISONING. 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 influenza, and the
highest incidence of poisoning occurs at the onset of cold weather or during flu 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 flames in the appliance.
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 HEAT ONLY BOILER.
• Stale or smelly air.
• The presence of soot or carbon in or
around the appliance.
• Very high unexplained humidity inside
the building.
W
ARNING
RIVA HEAT ONLY USER MANUAL - REV A 6

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
ORDINANCES, 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
flammable 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 fire 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 Technologies, Inc. Each
piece of equipment must be installed and used according to the
recommendations of the manufacturer.
Codes and Regulations:
Installation of the boiler and related equipment must conform to national, state and
local regulating agencies and codes applicable to the installation of the equipment. In the
absence of local requirements, the following codes apply:
RIVA HEAT ONLY USER MANUAL - REV A 7
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)
Battery March Park
Quincy, Massachusetts, 02269
http://www.nfpa.org
CSA International
8501 E. Pleasant Valley Road
Cleveland, OH 44134-5575
http://www.csa-international.org

RIVA HEAT ONLY USER MANUAL - REV A 8
The Riva Heat Only is a high efficiency, non-condensing, wall mounted gas boiler which
provides central heat. The boiler features a gas valve which modulates the energy input
from 44,000 BTU/h to 108,000 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
floor space.
• Several flue options available
• Electronic spark ignition
• Safety flow switch - positioned on the
main circuit, which monitors the flow
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 damage 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 controlled system test to
ensuring the motorized components
within the boiler do not become
inoperable due to lack of use.
• Gas valve modulation - the gas input
modulates based off central heating
temperature to within ± 2 ºF
• Diagnostic information system
equipped with three LED diagnostic
lights for quick error assessment.
GENERAL
Height in
27.7
Width in
15.7
Depth in 12.8
Weight lb
79.4
CENTRAL HEATING
Maximum working temp. °F 185
Temp. Regulation range* °F 100-176
Maximum pressure psi 30.0
Minimum pressure psi 4.35
Max head loss (at 4.4 GPM) ft 10
*At the minimum useful output
1. General Information
2. Technical In
f
ormation
(
M130.30CR
)

2.Technical Information Cont.
RIVA HEAT ONLY USER MANUAL – REV A 9
ENERGY CAPACITY
Nominal heat input
(0/2000ft) MBH 122.8
Nominal heat input
(2000/4500ft) MBH 116.7
Minimum heat input MBH 49.5
Maximum useful output
(0/2000ft) MBH 100.7
Maximum useful output
(2000/4500ft) MBH 95.9
Minimum useful output MBH 37.0
GAS SUPPLY PRESSURE
Gas Normal Min Max
Natural inwc 7.0 3.5 10.5
Propane inwc 11.0 8.0 12.0
GAS PRESSURE AT BURNER
Gas Min Max Ignition
Natural inwc 0.8 5.3 2.4
Propane inwc 1.4 9.0 5.2
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 flow rate MBH 122.8
Nominal heat flow rate
(2000/4500ft)
MBH 116.7
Min Exhaust temperature °F 262
Max Exhaust temperature °F 324
INJECTORS No. Size
Natural 14 130
Propane 14 89
GAS FLOW RATE
Gas Min Max
Natural ft³/h 48.7 121.1
Propane lb/h 2.23 5.55
ELECTRICAL
Voltage V 120
Frequency Hz 60
Current A < 1.6
Power consumption W 176

3. Appliance Description
3.1 Overview:
1 Case front panel
2 Control panel
3 Control panel cover
3.2 Control Panel:
4 Central heating circuit temperature
and pressure gauge
5 Lock-out signal lamp
6 Boiler reset button
7 Function switch and Central heating
temperature adjustment knob
8 Appliance operation lights
1
2
3
Figure 3.1
8 7 6 5 4
Figure 3.2
3.3 Piping Connections:
9 C.h. PRV discharge pipe
10 Central heating flow pipe
11 Central heating return pipe
12 Gas inlet pipe
12
11 10
9
Figure 3.3
RIVA HEAT ONLY USER MANUAL – REV A 10