Biasi RIVA COMBI Instructions d'installation

BOILER INSTALLATION, OPERATION

INSTRUCTIONS

Riva

COMBI

WALL HUNG GAS BOILER FOR

CENTRAL HEATING AND DOMESTIC

HOT WATER 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.

— HAT 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.

ARNING: 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 Technology, Inc.

3560 Lafayette Road

Portsmouth, NH 03801

Phone: 603-334-6400

Fax: 603-334-6401

RIVA COMBI MANUAL - REV B

Dear Customer:

Thank you for uying a Biasi Riva Com i Boiler System.

The Riva Com i is a high efficiency, non-condensing, wall mounted gas oiler which

provides central heat and domestic hot water.

We realize that it is not possi le to answer all questions a out the Riva Com i oiler 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 distri utor if you are in question

a out any aspect of your oiler's performance. Our main concern is that you are satisfied with your

oiler 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

oiler) are intended to serve as guidelines rather than specific recommendations. We realize that

other makes and models of such devices are availa le and can e used as successfully as those

we specify. The installing contractor is the est judge of a system's specific requirements, as well as

the local availa ility of certain makes and models of controls and accessories. The preceding does

not apply, however, to the equipment that comes with every oiler, 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 oilers are uilt in accordance with the ASME oiler and pressure

vessel code, and ear the "H" stamp. The Entire range of applications for the Riva Com i

has een tested to standard CSA 4.9 and is CSA compliant.

This Riva Com i has a 2 year warranty, a copy of which is provided with the oiler. Please e sure

to return the warranty registration card as the warranty will e void without your oiler's serial

num ers (located on the ratings la el affixed to the oiler), date of installation and the name of your

installer eing on record in our files.

Thank you for purchasing our Riva Com i oiler. If you have questions or comments,

please don't hesitate to contact us immediately. Our goal is 100% customer satisfaction.

QHT inc.

RIVA COMBI MANUAL - REV B 3

Warnings - 5-6

Important Information - 7

General Information 1 8

Technical Information (M35.30CB) 2 8-9

Parts List 3 10

Internal Piping and Parts List 4 11

Electric Diagrams 5 12

Sequence of Operation 5.1 13

Installation Location 6 14

Exhaust Pipe Location 7 15

Mounting Bracket 8 16

Venting 9 17-25

Vent Requirements for Massachusetts 9 18

Restrictor Sizing 9.1 18

Fitting the Flue System 9.2 19

Choice of Flue 9.3 20-25

Pipe Connections 10 26

Gas Pipe Connections 11 27

Electrical Connections/Wiring 12 28-30

Power Connection 12.1 28

Connection to the Electricity Supply 12.2 28

Room Thermostat Connection 12.3 29

Relay Panel Connection 12.4 29

Zone Valve Microswitch Connection 12.5 30

Circulator Sizing 13 31

Circ. Cap. as a Function of Flow Rate 13.1 31

Expansion Vessels 13.2 31

Piping 14 32-35

Primary-Secondary Piping 14.1 33

Primary-Secondary with Zone Valves 14.2 34

Table of Content

Section Title Section Number Page Number

RIVA COMBI MANUAL - REV B

Manifold Piping with Zone Valves or Circ. 14.3 35

Commissioning 15 36-41

Filling the d.h.w. System 15.1 36

Initial Filling of the System 15.2 36

Lightning the Boiler 15.3 37

Checking the Gas Pres. at the Burner 15.4 37

Adjustment of the Gas Pressure 15.5 38

Checking the Ignition Device 15.6 38

Checking the Burner Ignition 15.7 39

Adjustment of the Useful c.h. Output 15.8 39

La els Placement 15.9 40

Checking Flue System and Com ustion 15.10 41

Instructing the User 15.11 41

Gas Conversion 16 42-43

Annual Maintenance 17 44-46

Warnings 17.1 44

Dismantling the External Panels 17.2 44

Emptying the d.h.w. System 17.3 44

Emptying the c.h. System 17.4 44

Cleaning the Primary Heat Exch. 17.5 45

Checking the Pressures. in C.h. Vess. 17.6 45

Checking the Pressures. in D.h.w. Vess. 17.7 45

Checking the Magnesium Anode 17.8 45

Cleaning the Burner 17.9 45

Checking the Flue 17.10 45

Visual Inspection of Appliance 17.11 45

Gas Pressures and Soundness 17.12 46

Installer Notes and Vent Part

Spares Vent Part Spares 18 41

Table of Content

Section Title Section Number Page Number

RIVA COMBI MANUAL - REV B 5

Boiler is certified as an indoor appliance. Do not install oiler outdoors or locate where

it will e exposed to freezing temperatures.

— Do not store or use gasoline or other flammable vapors and liquids

in the vicinity of this or any other appliance.

— HAT 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 neighbour’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.

ARNING: 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.

ution: Do not store or use flammable materials, chemicals or flammable

liquids, especially gasoline, in the vicinity of this heating appliance.

WARNING

DANGER

RIVA COMBI MANUAL - REV B

Any appliance that urns natural gas, propane gas, fuel oil, wood or coal is capa le of

producing car on monoxide (CO). Car on Monoxide (CO) is a gas which is odorless,

colorless and tasteless ut is very toxic. CO is lighter than air and thus may travel

throughout the uilding.

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 pro lems shortness of reath

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 car on monoxide:

If any of the symptoms of CO occur or if any of the signs of car on 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

ORK ON YOUR BIASI RIVA COMBI BOILER.

• Stale or smelly air.

• The presence of soot or car on in or

around the appliance.

• Very high unexplained humidity inside

the uilding.

• 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.

WARNING

RIVA COMBI MANUAL - REV B 7

IMPORTANT INFORMATION

Please read this page carefully.

• ALL BOILERS MUST BE INSTALLED IN ACCORDANCE ITH NATIONAL, STATE AND

LOCAL PLUMBING, HEATING AND ELECTRICAL CODES AND ORDINANCES, AS

ELL AS THE REGULATIONS OF THE SERVING ELECTRICAL, ATER 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 for 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 oiler and related equipment must conform to national, state and local

regulating agencies and codes applica le to the installation of the equipment. In the

a sence of local requirements, the following codes apply:

The a ove codes are availa le from:

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

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 COMBI MANUAL - REV B

The Riva Com i is a high efficiency, non-condensing, wall mounted gas oiler which provides

central heat and domestic hot water. The oiler features a gas valve which modulates the energy

input from 44,000 BTU/h to 108,000 BTU/h. The oiler is shipped fully assem led with the

components listed on page 11. All units are pressure and com ustion tested at the factory prior to

shipping.

Key Features:

• Wall mounta le - saving valua le floor

space.

• Several flue options availa le

• 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 e a lack of

water in the system.

• Frost protection - contains an integral frost

protection system to prevent frost damage

which can occur in areas suscepti le to

very cold weather conditions.

• Boiler operation recognition system -

should the oiler not e used for longer

than 24 hours, it then performs a controlled

system test to ensuring the motorized

components within the oiler do not

ecome inopera le due to lack of use.

• Gas valve modulation - the gas input

modulates ased off central heating and

domestic hot water temperature to within ±

2 ºF

• Diagnostic information system equipped

with three LED diagnostic lights for quick

error assessment.

GENERAL

Height in 35.4

Width in 23.6

Depth in 18.1

Weight l 172

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

DOMESTIC HOT WATER

Maximum temperature °F 140

Minimum temperature °F 100

Maximum pressure psi 116

Useful tank capacity gal 13.2

D.h.w circuit flow rate

∆T = 55 °F (30 °C) gpm

3.99

Continous d.h.w production

∆T = 45 °F (25 °C) gpm

4.54

Continous d.h.w. production

∆T = 72 °F (40 °C) gpm

2.85

Preparation time min 7’57”

1. General Information

2. Technical Information (M35.30CB)

RIVA COMBI MANUAL - REV B 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 0.66

Flue pipe diameter

Coaxial in 2.25/4

3.25/5

Twin split pipes in 3.25/3.25

Nominal heat flow rate

(0/2000ft) MBH 122.8

Nominal heat flow rate

(2000/4500ft) MBH 116.7

Min Exhaust temperature °F 255

Max Exhaust temperature °F 302

INJECTORS No. Size

Natural 14 130

Propane 14 89

GAS FLOW RATE

Gas Min Max

Natural ft³/h 48.7 121.1

Propane

l /h 2.23 5.55

ELECTRICAL

Voltage V 120

Frequency Hz 60

Current A < 1.6

Power consumption W 176

FLUE GAS FIGURES

Gas Min Max

CO2 2.2% 6.9%

O2 17.0% 8.6%

CLEARANCE TO COMBUSTIBLES

Front in 18

Back in 0

Top in 8

Sides in 2

Bottom in 8

Flue pipe enclosed in 2

Flue pipe ree air in 0

2.Technical

Information Cont.

RIVA COMBI MANUAL - REV B

Primary Components:

1 Pump

2 Pump vent plug

3 Automatic air purger valve

4 Modulation gas valve

5 Three-way diverter valve

6 D.h.w. expansion vessel

7 Flame-detecting electrode

8 Ignition electrodes

9 Burner

10 Com ustion cham er

11 Primary heat exchanger

12 Fan

13 Air pressure switch

14 Air switch pres. Test points

15 Main circuit air reathe valve

16 D.h.w. storage tank

17 Safety thermostat

18 Modulation operator

19 Gas valve outlet pres. Test point

20 Gas valve inlet pres. Test point

21 Central heating expansion vessel

22 Central heating temp. Pro e NTC

23 D.h.w. storage tank NTC

24 Central heating pressure relief valve

25 D.h.w. circuit pressure relief valve

26 Primary circuit flow switch

27 Main circuit drain cock

28 By-pass valve

29 Venturi device

30 Storage tank drain cock

31 Magnesium anode

32 Storage tank coil

33 Flue outlet pipe

34 Air Intake Pipe

35 Control panel

36 Safety thermostat pro e

37 Pressure reducing automatic fill valve

38 Backflow preventer

39 Gas supply line cock

40 D.h.w. inlet cock

3. Part Li t

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