Biasi RIVA COMBI Bedienungsanleitung

BOILER SERVICE INSTRUCTIONS

MANUAL

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.

— 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: 603-334-6400

Fax: 603-334-6401

RIVA COMBI SERVICE MANUAL - REV A

*17562.0183.0*

17562.0183.0 0406

(

57A4

)

___________________________________________________________________________________________________

First Part Service Manual

_______________________________________________________________

RIVA COMBI SERVICE MANUAL – REV A 2

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First Part Service Manual

_______________________________________________________________

RIVA COMBI 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 outer corner of each page, the part in

the inner top corner. The pages are numbered

in the bottom corner (fig. 2).

Technical sheet edition date (month and year)

is given between part and 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.

M35.30CB - 7

M35.30CB - 5

M35.30CB - 3

M35.30CB - 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

___________________________________________________________________________________________________

First Part Service Manual

_______________________________________________________________

RIVA COMBI 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

unitÕs construction characteristics (fig. 6)

M35.30CB

Max useful power in c.h.

30 = 30,00 kW (25 800 kcal/h)

C = Sealed Chamber

Boiler series

B = With Storage Tank

fig. 6

The information contained in this manual is

applicable to the following models:

M35.30CB

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

M35------------------|M35.30CB

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Second Part M35.30CB Maintenance Characteristic Verification

_______________________________________________________________

RIVA COMBI SERVICE MANUAL – REV A

Summary

Page

OVERALL VIEW………………………………………………………….…M35.30CB - 1

HYDRAULIC DIAGRAM……………………………………………………M35.30CB - 1

ELECTRICAL DIAGRAM………………………………………………..…M35.30CB - 2

GAS ADJUSTMENT DATA………………………………………………..M35.30CB - 3

FAULT FINDING………………………………………………………….…M35.30CB - 4-5

CIRCUIT VOLTAGES………………………………………………………M35.30CB - 6

OPERATION LIGHTS………………………………………………………M35.30CB - 7

START UP CHECKS………………………………………………………..M35.30CB - 7

GAS CONVERSION…………………………………………………...……M35.30CB - 8

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Second Part M35.30CB Maintenance Characteristic Verification

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RIVA COMBI SERVICE MANUAL – REV A

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Second Part M35.30CB Maintenance Characteristic Verification

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RIVA COMBI SERVICE MANUAL – REV A M35.30CB - 1

1 Overall View

Pump

Pump vent plug

Burner

Flame-detec

ting electrode

Combustion

chamber

Primary heat

exchanger

Ignition

electrodes

Fan

Gas valve inlet

pressure test point

Modulation

operator

Air pressu

re switch

Gas valve outlet

pressure test point

C.h. expan

sion vessel

Main circuit air

breathe valve

C.h. temp.

probe NTC

C.h.

PRV

Safety

thermostat

Control

panel

D.h.w.

PRV

D.h.w. sto

rage tank

Primary circuit

flow switch

Three way

diverter valve

Modulation

gas valve

D.h.w. expan

sion vessel

Automatic air

purger valve

Air pressure

switch test points

Gas

Main circuit

drain cock

C.h.

return

C.h.

flow D.h.w

. inlet

D.h.w.

outlet D.h.w

. PRV C.h.

PRV

D.h.w. tempera

ture probe NTC Storage tank

drain cock

Magnesium

anode

fig. 1

2 Hydraulic Diagram

C.h. water return

C.h. water flow

D.c.w.inle

D.h.w.outlet

fig. 2

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Second Part M35.30CB Maintenance Characteristic Verification

_______________________________________________________________

RIVA COMBI SERVICE MANUAL – REV A M35.30CB - 2

3 Electrical Diagram

ye bk wh gy bu rd

bk gy

probe NTC

D.h.w. Temperature

Probe NTC C.h. temperature

COM

123 bk

bubn

gnyegywh

gybugnye

bk bk

rd bk wh gygnye bu

bubu

rdbk

gygy

bubn

L N

rd bu bn gnye gnye

gnye bubn

burd

gnye

Flow Switch

Primary Circuit

diverter valve

Three way 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

vt - violet

og - orange

gnye - green/yellow

ye wh burd

* ---> directly connected to the electronic ignition board

fig. 3

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Second Part M35.30CB Maintenance Characteristic Verification

_______________________________________________________________

RIVA COMBI SERVICE MANUAL – REV A M35.30CB - 3

4 Gas Adjustment Data

Maximum gas pressure at the injectors

Natural (G20)

Propane (G31)

inwc

5.3

9.0

Minimum gas pressure at the injectors

Natural (G20)

Propane (G31)

inwc

0.8

1.4

Ignition pressure

Natural (G20)

Propane (G31)

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

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

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

___________________________________________________________________________________________________

Second Part M35.30CB Maintenance Characteristic Verification

_______________________________________________________________

RIVA COMBI SERVICE MANUAL – REV A M35.30CB - 4

5 Fault Finding

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