Sime Murelle 30 OF, Murelle series, Murelle 25 OF, Murelle 25 OFT, Murelle 25 BF Installer's Instructions

...

INSTALLER INSTRUCTIONS

CONTENTS

1 DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 108

2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 114

3 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 127

4 USE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 132

IMPORTANT

When carrying out commissioning of the boiler, you are highly recommended to perform the following checks:

– Make sure that there are no liquids or inflammable materials in the immediate vicinity of the boiler.

– Make sure that the electrical connections have been made correctly and that the earth wire is connected to a

good earthing system.

– Open the gas tap and check the soundness of the connections, including that of the burner.

– Make sure that the boiler is set for operation for the type of gas supplied.

– Check that the flue pipe for the outlet of the products of the combustion is unobstructed and has been properly

installed.

– Make sure that any shutof f valves are open.

– Make sure that the system is charged with water and is thoroughly vented.

– Check that the circulating pump is not locked.

– Purge the system, bleeding off the air present in the gas pipe by operating the pressure relief valve on the gas

valve inlet.

– The installer must provide the user with instruction in operation of the boiler and safety devices and hand over the

instruction booklet to the user.

FONDERIE SIME S.p.A. of Via Garbo 27 - Legnago (VR) - Italy declares that its hot water boilers, which bear the CE mark under Gas Dir ective 90/396/CEE and are fitted with a safety ther mostat calibrated to a maximum of 110°C, are not subject to application of PED Directive 97/23/CEE as they meet the requirements of article 1 paragraph 3.6 of the Directive.

108

1.1 INTRODUCTION

“ M U R E L L E ” a r e t h e g a s f u e l l e d b u r n e r

group s for h eating and the production of h o t sanita ry w a te r, const ru c ted to satisfy the needs of collective residential housing and modern plant. T h e y a r e a p p a r a t u s e s w h i c h c o n f o r m t o t h e E u r o p e a n d i r e c t i v e s 9 0 / 3 9 6 / C E , 2 0 04 / 108 /CE, 2 006/95/CE and 92/42/CE. Th e can be fuelled by natur a l

gas (G20) or LPG (G30-G31). This booklet g i v e s t h e i n s t r u c t i o n s f o r t h e f o l l o w i n g models: – “MURELLE 25-30 OF” w i t h e l e c t r o n i c

m o d u l a t i o n i g n i t i o n , o p e n c o m b u s t i o n chamber with natural draw

– “MU RELLE 25 OFT” o n l y h e a t i n g , w i t h

electronic modulation ignition, open comb u s t i o n c h a m b e r a n d n a t u r a l d r a w , which can be connected to D.H.W. storage tank .

– “MURELLE 25-30-35 BF” w i th elect ro-

nic modulation ignition, sealed combustion chamber forced flow.

– “MURELLE 20-25 BFT” o n l y h e a t i n g ,

w i th electronic modulation ignitio n, seal e d c o m b u s t i o n c h a m b e r a n d f o r c e d fl ow, which can be connected t o D.H.W.

storage tank. The instructions given in this manual are provided t o ensure proper installation and perfect operation of the appliance.

1 DESCRIPTION OF THE BOILER

1.2 DIMENSIONS

1.2.1 “25-30 OF” models

198

ø D

70 70 70

125

350

Fig. 1

CONNECTIONS R C.H. return

G 3/4” (UNI-ISO 228/1)

M C.H. flow

G 3/4” (UNI-ISO 228/1)

G Gas connection

G 3/4” (UNI-ISO 228/1)

E D.H.W. inlet

G 1/2” (UNI-ISO 228/1)

U D.H.W. outlet

G 1/2” (UNI-ISO 228/1)

DIMENSIONS 25 30 L mm 400 450 D mm 130 150

1.2.2 “25 OFT” models

350

107

12 5 6 0

400

40 71

707061

ø 130

19 8

RM G

G R

Fig. 1/a

CONNECTIONS R C.H. return G 3/4” (UNI-ISO 228/1) M C.H. flow G 3/4” (UNI-ISO 228/1) G Gas connection G 3/4” (UNI-ISO 228/1) R3 D.H.W. tank return G 3/4” (UNI-ISO 228/1) M2 D.H.W. tank output G 3/4” (UNI-ISO 228/1) C System loading G 1/2” (UNI-ISO 228/1)

ATTE NT I ON: T h e “OFT” ve rsion is designed for t he connection of a re m oteboiler,touseitasaboiler ONLY FOR HEATING it is necessary:

- to disconnect D.H.W. sensor (SB)

- set the PAR 2 to 4.

All modules are designed to be used by qualified technical personnel.

109

70 70

40 71

16 5

350

12 5

107

400

18 0

Fig. 1/c

1.2.4 “20 - 25 BFT” models

70 70 70 70

==350

12 5

16 5

55 55

Fig. 1/b

1.2.3 “25 - 30 - 35 BF” models

CONNECTIONS

R C.H. return

G 3/4” (UNI-ISO 228/1)

M C.H. flow

G 3/4” (UNI-ISO 228/1)

G Gas connection

G 3/4” (UNI-ISO 228/1)

E D.H.W. inlet

G 1/2” (UNI-ISO 228/1)

U D.H.W. outlet

G 1/2” (UNI-ISO 228/1)

DIMENSIONS

25 30 35

L mm 400 450 450

K mm 180 205 205

ATTENTION: The “BFT” version is designe d for t he conn ection of a re m ot e b o i l e r, to use it as a b oiler O N LY F O R HEATING it is necessary:

- to disconnect the D.H.W. sensor (SB)

- set the PAR 2 to 4.

All modules are designed to be used by qualified technical personnel.

110

* Gas consumption figures e xpress the lowest calorific power of pure gas under standard conditions at 15°C – 1013 mbar; this figur e may dif fer from the actual

figure, which is dependent on gas composition and environmental conditions.

Models 25 OF 30 OF 25 OFT 25 BF 30 BF 35 BF 20 BFT 25 BFT

Heat output

Nominal kW 23.0 27.0 23.0 23.7 28.0 32.4 19.8 23.7

Reduced kW 8.7 10.2 8.7 8.8 10.4 11.8 7.3 8.8

Heat input

Nominal kW 25.5 30.0 25.5 25.5 30.0 34.8 21.3 25.5

Reduced kW 10.2 12.0 10.2 10.2 12.0 13.5 8.5 10.2

Thermal yield 100% useful 90.0 90.0 90.0 93.0 93.3 93.1 93.0 93.0

Thermal yield useful at 30% of load 89.5 89.5 89.5 92.0 92.0 92.0 92.0 92.0

Termal efficiency (CEE 92/42 directive) ★★ ★★ ★★ ★★★ ★★★ ★★★ ★★★ ★★★

Losses after shutdown to 50°C (EN 483)

W/h 200 235 200 89 96 96 89 89

Supply voltage V-Hz 230-50 230-50 230-50 230-50 230-50 230-50 230-50 230-50

Adsorbed power consumption W 75 90 80 100 115 135 105 105

E l e c t rical pr otection gra d e IP X4D X4D X4D X4D X4D X4D X4D X4D

C.H. setting range °C 30÷80 30÷80 30÷80 30÷80 30÷80 30÷80 30÷80 30÷80

Water content boiler l 7.1 8.0 7.1 7.1 8.0 8.0 7.1 7.1

Maximum water head bar 3 3 3 3 3 3 3 3

Maximum temperature °C 85 85 85 85 85 85 85 85

Header tank capacity l7 8 7 7 8 8 7 7

Header tank pressure bar 1 1 1 1 1 1 1 1

D.H.W. setting range °C 30÷60 30÷60 - 30÷60 30÷60 30÷60 - -

D.H.W. flow rate (EN 625) l/min 10.7 12.7 - 11.1 13.2 15.3 - -

Continuous D.H.W. flow rate t 30°C l/min 10.9 12.9 - 11.3 13.4 15.5 - -

Minimum D.H.W. flow rate l/min 2.4 2.4 - 2.4 2.4 2.4 - -

D.H.W pressure min/max bar 0.2/7 0.2/7 - 0.2/7 0.2/7 0.2/7 - -

D.H.W. pressure min. nom. power bar 0.5 0.65 - 0.5 0.65 0.8 - -

Smokes temperature min/max °C 88/122 95/135 88/122 100/125 100/125 95/130 95/115 100/125

Smokes flow min/max g/s 18/20 18/20 18/20 16/16 18/18 21/21 15/15 16/16

CE certification No. 1312BS5038 1312BS5037

Category II

2H3+

Type of appliance B

11BS

22P-52P/C12-32-42-52-62-82

NOx emission class 3 (<150 mg/kWh) 3 (<150 mg/kWh)

Weight when empty kg 30 33 30 38 40 40 37 37

Main burner nozzle

Quantity nozzles n ° 12 14 12 12 14 15 10 12

G20 nozzle diameter mm 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30

G30/G31 nozzle diameter mm 0.77 0.77 0.77 0.77 0.77 0.80 0.76 0.77

Gas consumption *

Natural gas (G20) m

/h 2.70 3.17 2.70 2.70 3.17 3.68 2.25 2.70

LPG (G30/G31) kg/h 2.01 2.37 2.01 2.01 2.37 2.74 1.68 2.01

Burner gas pressure min/max

Natural gas (G20) mbar 1.8/11.0 1.9/11.1 1.8/11.0 2.0/11.8 2.1/12.0 2.2/13.7 1.9/11.0 2.0/11.8

Butane (G30) mbar 4.7/27.7 4.8/27.7 4.7/27.7 4.8/28.5 5.0/28.5 4.5/28.2 4.8/28.5 4.8/28.5

Propane (G31) mbar 4.7/35.7 4.8/35.7 4.7/35.7 4.8/36.5 5.0/36.5 4.5/36.2 4.8/36.5 4.8/36.5

Gas supply pressure

Natural gas (G20) mbar 20 20 20 20 20 20 20 20

Butane (G30) mbar 28–30 28–30 28–30 28–30 28–30 28–30 28–30 28–30

Propane (G31) mbar 37 37 37 37 37 37 37 37

1. 3 T E C H N I CAL F E A T U R E S

111

16 14

GMR

1.4 FUNCTIONAL DIAGRAM

Fig. 2

“25-30 OF/25-30-35 BF” models

“20-25 BFT/25 OFT” models

UEG MR

KEY

1 Fan (BF - BFT model) 2 Primary exchanger 3 Combustion chamber 4 Gas valve 5 D-H.W. exchanger with plates 6 Pressure switch valve with loading 7 C.H. sensor (SM) 8 Safety thermostat

9 D.H.W. sensor (SS) 11 Circulator with air release vent 12 Expansion vessel 13 3 BAR safety valve 14 Boiler discharge 15 Water flow meter 16 Water pressure transducer 17 Automatic bypass 18 D.H.W. filter 19 C.H. return cock (optional) 20 C.H. flow cock (optional) 21 D.H.W. cock (optional) 22 Gas cock (optional) 23 Connection plate (optional) 24 Aqua Guard Filter System 25 Motorised deviator valve 26 Filler group (optional) 27 D.H.W. storage tank BT 100 (optional) 28 Boiler discharge (optional) 29 D.H.W. sensor (SB) 30 D.H.W. expansion vessel 4 litre (optional) 31 D-H.W. safety valve 7 BAR (optional)

CONNECTIONS

U D.H.W. outlet

E D.H.W. inlet

G Gas connection

M C.H. flow

R C.H. return

C Syst em loading

112

1.5 MAIN COMPONENT S

Fig. 3

KEY

1 3 BAR safety valve 2 Control panel 3 Gas valve 4 Burner s 5 Combustion chamber 6 Smoke chamber

7 Smoke stat 8 C.H. sensor (SM)

9 Main exchanger

Ignition/detection electrode

11 Coupling protection

“25 - 30 OF/25 OFT” models

113

Fig. 3/a

KEY

1 3 BAR safety valve 2 Control panel 3 Burners 4 Combustion chamber 5 Fan 6 Combustion analysis intakes 7 Negative pressure intake

8 Positive pressure intake

9 Smoke pressure switch 10 C.H. sensor (SM) 11 Main exchanger 12 Ignition/detection electrode 13 Gas valve 14 Coupling protection

“25 - 30 - 35 BF/20 - 25 BFT” models

114

The boiler must be installed in a fixed locat i o n a n d o n l y b y s p e c i a l i z e d a n d q u a l i f i e d f i r m s i n c o m p l i a n c e w i t h a l l i n s t r u c t i o n s contained in this manual. Furthermore, the installation must be in accordance with current standards and r egulations.

2.1 INSTALLATION

In the rooms where “type B” boiler s are i n s t a l l e d , t h e a i r r e q u i r e d f o r c o r r e c t c o m b u stion of the gas consumed by th e appliance must be able to flow in. It is there f o re necessary to make openings t h a t c a n n o t b e b l o c k e d i n t h e o u t e r w a l l s , w h i ch mus t be at least 6 cm

for eve ry kW of thermal capacity inst alled and with, in any case, a minimum of 100 cm

- “Type C” a pp l i a n c e s , w i t h c o m b u s t i o n chamber and air supply sealed of f fr o m the environment, can be inst alled in any room in the house.

- “Type B and C” b oilers ar e suitabl e fo r functioning in a partially prot ected place, as according to EN 297, with maximum environmental temperature of 60°C and minimum of -5°C. We recommend installation of these boilers under the protruding slope of a roof, on a balcony, or in a p r o t e c t e d n i c h e , a l w a y s p r o v i d i n g t h e y a r e n o t d i r e c t l y e x p o s e d t o a d v e r s e weather (rain, hail, snow). The boilers are provided already equipped with anti-freeze functions.

2.1.1 Anti-freeze function

T h e b o i l e r s a r e e q u i p p e d w i t h a n t i - f r e e z e function which activates the pumps and the burner when the temperature of the water c o n t a i n e d i n s i d e t h e a p p l i a n c e d r o p s t o below 6°C. The anti-freeze function is ensured, however, only if:

- the boiler is correctly connected to the

gas and electricity supply circuits;

- the boiler is constantly fed;

- the boiler ignition is not blocked;

- the essential components of the

boiler are all in working order In these condition s the boiler is prot e c te d a g a i n s t f r o s t d o w n t o a n e n v i r o n m e n t a l temperature of -5°C.

ATTENTION: In the case of installation in a place where the temperature drops below 0°C, the connection pipes must be protected.

2.2 COMPLEMENTARY

ACCESSORIES

To f a c i l i t a t e c o n n e c t i n g t h e b o i l e r t o t h e s ys t em , t he f o l l owi ng a cc es so ri es c an be supplied on request, complete wit h instructions for assembly:

- Installation plate code 8075416

- C u r v e t t e an d g as t a p s / s a n i t a r y w a t e r

output set code 8075418

- Taps kit code 8091806

- P o l y p h o s p h a t e s d o s e r k i t c o d e 81071700

- K i t o f c o u p l i n g s f o r r e p l a c i n g w a l l - h u n g boilers of other makes code 8093900

- Solar kit for the insta n taneous code 8105101

- H y d r a u l i c c o n n e c t i o n k i t b o i l e r BFT/BT100 tank unit code 8091111.

2.3 CONNECTING UP SYSTEM

To prot ect the heat system from damaging c o rrosion, incru station or deposits, befo re i n s t a l l a t i o n i t i s e x t r e m e l y i m p o r t a n t t o clean t he sys tem using su itable p ro d u c t s s u c h a s , f o r e x a m p l e , S e n t i n e l X 3 0 0 o r X400. Comp l ete inst ructions are prov i d e d with the products but, for further informat i o n , y o u m a y d i r e c t l y c o n t a c t S E N T I N E L PERFORMANCE SOLUTIONS LTD. For long-te rm p rotection again s corro s i o n and deposits, the use of inhibitors such as Sentinel X100 is recommended after cleaning th e syst em. It is i mp o rtant t o ch e ck the concentration of the inhibitor afte r each system modification and during maint e n a n c e f o l l o w i n g t h e m a n u f a c t u r e r ’ s instructions (specific tests are available at your dealer). The safety valve drain must be c o n n e c t ed to a collection funnel to collect any di sch a rge dur ing int e r vention s. If th e heating system is on a higher floor t han the boiler, install the on/off taps supplied in kit o ptional on t he heating syste m delivery/return pipes.

WA R N I NG: F a i l u re t o c l ea n th e heat system or add an adequate inhibitor invalidates the device’s

warranty.

Gas connections must be made in accor-

dance with cur rent sta n d a rds and r e g u l ations. When dimensioni ng gas pipes fr o m the meter to t he module, both capacity volume (consu mption) in m

/h and ga s density must be taken into account. The sections of the piping making up the system must be such as to guarantee a supply of gas sufficient to cover the maxim u m d e m a n d , l i m i t i n g p r e s s u r e l o s s between the gas met er and any apparatus being used to not greater than: – 1.0 mbar for family II gases (natural gas); – 2.0 mbar f or fa m i ly III gases (butane or

propane).

An adhesive data plate is sticked inside the front panel; it contains all the technical data identifying the boiler and the type of gas for which the boiler is arranged.

2.3.1 Filter on the gas pipe

The gas valve is supplied ex factory with an inlet filter, which, however, is not adequate to entrap all the impurities in the gas or in gas main pipes. To prevent malfunctioning of the valve, or in certain cases even to cut out the safety device with which the valve is equipped, install an adequate filter on the gas pipe.

2.5 SYSTEM FILLING

Filling of the boiler and the system is done by the charge cock (2 fig. 4). The charge pressure, with the sys tem cold, must be between 1 and 1.5 bar. During system filling you are recommended to keep t he main switch turned OFF. Filling must be done slowly so as to allow any air bubbles to be

2 INSTALLATION

Fig. 4

8 1

10 11 3 2 9 4

675

13 11

“25-30 OF/25-30-35 BF” models

“20-25 BFT/25 OFT” models

KEY

1 Sanitary water header 2 Fill tap 3 D.H.W. filter 4 By-pass 5 Water rate adjuster 6 D.H.W. exchanger 7 Microswitches 8 Water flow switch

9 Boiler discharge 10 D.H.W. sensor 11 Water pressure transducer 12 Safety t hermostat 13 Deviator v alve 14 Syst em loading connection

115

bled of f through the air valves. Should the pressure have risen well above the limit expected, discharge the o ver pressure by opening the pressure-relief valve.

N.B. The OFT/BFT versions are loaded by means of the special coupling indicated in figs. 1/a - 1/c

2.5.1 Emptying the system

Use the drain tap to empty the system (9 fig. 4). Turn off the boiler before doing this.

2.6 FLUES/CHIMNEYS

A chimney or flue for the e vacuation of the c o m b u stion products into t he atmosphere must correspond to the requisites prescribed by the laws in force. I n p a r t i c u l a r, t h e s p e c i f i c p r e s c r i p ti o n s o f law relative to boilers with natural draught in collective pipes (type B) and those for boil e rs with fo rced draught (type C) must be respected.

2.6.1 Ducting of existing chimneys

To recover or duct existing chimneys, ducts d e c l a r e d s u i t a b l e f o r t h e p u r p o s e b y t h e manufacturer must be used, and the installation a nd use modalities in dicated by th e s a i d m a n u f a c t u r e r m u s t a l s o b e f o l l owe d a s w e l l a s t h e p r e s c r i p t i o n s o f S t a n d a r d UNI 10845.

2.7 INSTALLATION OF COAXIAL DUCT (versions "BF - BFT")

2.7.1 Accessories 60/100

The 60 /100 coaxial duc t is su pplied on request in kit code 8084811. The diagrams o f f ig. 5 illust ra te some exa mple s of diffe rent ty pes of disch a rge modalities allowed and the maximum

lengths that can be reached.

2.7.2 Diaphragm for 60/100 coaxial duct

The boiler is supplied with a diaphragm of

84 (version 20 BFT), 86 (versions 25-35 BF/25 BFT) and 87.5 (version 30 BF). The diaphragms 87.5 (code 6028824) and 86 (code 6028623) can be requested separately. Use the diaphragms according to the indications of fig. 5/a.

C12

C32

C42

328

max 5,0 m per vers. “20” max 3,5 m per vers. "25" max 3,0 m per vers. "30-35"

x + y = max 5,0 m per vers. "20" x + y = max 3,5 m per vers. "25" x + y = max 3,0 m per vers. "30-35"

KEY 1 Coaxial flue kit L. 810 code 8084811 2 a Extension L. 1000 code 8096103 2 b Extension L. 500 code 8096102 3 Vertical extension L. 200 code 8086908 4 Additional 90° cur ve code 8095801 6 Ar ticulated tile code 8091300 7 Roof outlet terminal L. 1284 code 8091200 8 Vertical condensation collector L. 200 code 8092803

Fig. 5

IMPORTANT: – E a c h a d d i t i o n a l 9 0 ° c u r v e

installed reduces the available length by 1.0 metres.

– E a c h a d d i t i o n a l 4 5 ° c u r v e

installed reduces the available length by 0.50 metres.

- The inser tion of the condensation collector (8) is obligatory for vertical stretches of more than 1.3 metres.

For discharge types C12-C42, use the diaphragms supplied with the boiler:

- ø 84.0 for version “20” only when the length of the coaxial duct is less than 2 metres,

- ø 86.0 for version “25-35” only when the length of the coaxial duct is less than 1 metre,

- ø 87.5 for version “30” only when the length of t he coaxial duct is less than 2 metres.

For discharge types C32, use the following diaphragms according to the length of the duct and without additional curves:

Installations with vetrical Installations with vertical condensation

extension L. 200 code 8086908 * collector code 8092803 *

“20 BFT” models “20 BFT” models

Diaphragm Diaphragm Without Diaphragm Diaphragm Without

ø 84 ø 86 diaphragm ø 84 ø 86 diaphragm

(code 6028622) (code 6028623) (code 6028622) (code 6028623)

L max = 4 m L max = 5 m ---- L max = 3 m L max = 5 m ---

“25 BF - 25 BFT - 30 BF - 35 BF” models “25 BF - 25 BFT - 30 BF - 35 BF” models

Diaphragm Diaphragm Without Diaphragm Diaphragm Without

ø 86 ø 87,5 diaphragm ø 86 ø 87,5 diaphragm

(code 6028623) (code 6028624) (code 6028623) (code 6028624)

L max = 2.5 m L max = 4 m L max = 5 m --- L max = 2.5 m L max = 4 m

* Minimum length of duct L = 1.3 m.

Fig. 5/a

116

2.7.3 Accessories 80/125

The 80 coaxial duct is supplied on request in a kit code 808483 0 comp l ete with assembly instructions.

Wi th the curve supplied in the kit, the maxim um ho ri z o n t a l l en g t h o f t h e d uc t mu s t b e no more than 6 met re s .

The diagrams in fig. 6 show some examples of the diffe rent types of 80/125 coaxial discharge modalities.

2.8 INSTALLATION OF SEPARATE DUCTS (versions “BF - BFT”)

When installing, the provisions of the law s in force must be adhered to, as well as certain practical suggestions:

– Wi th aspiration dire c t ly fr om outside,

when the duct is longer than 1 metre, it is advisable to insulate the said duct in o r der to avoid th e fo r mation of dew on the outside of the pipe when the weather

is particularly cold.

– W i t h d u c t s w i t h d i s c h a r g e p o s i t i o n e d

outsid e t he bui lding, or in cold env i ro nments, i nsulation is necessar y to a vo i d d i fficulty in sta r ting the burn e r. In th e s e cases, a condensation system on th e pipes must be provided for.

– If the pipe passes th rough inf l a m m a b l e

walls, insulat e the st ret ch of the fumes d i s ch a rge pipe t hat passes t h rough th e

C12

C32

C42

x + y = min. 3,5 m/max 6 m "25" x + y = min. 3,0 m/max 6 m "30-35"

min. 3,5 m - max 6 m "25" min. 3,0 m - max 6 m "30-35"

Fig. 6

KEY 1 Coaxial duct kit code 8084830 2 Extension L. 1000 code 8096130 3 Vertical extension L. 200 with coupling code 8086908 4a Additional 90° curve code 8095820 4b Additional 45° curve code 8095920 5 Adapter for 80/125 code 8095920 6 Tile for joint code 8093120 7 Terminal for roof exit L. 1284 code 8091200 8 Vertical condensation collector L. 200 code 8092803

IMPORTANT: – Each additional 90° cur ve installed reduces the available length by 1.0 metres. – Each additional 45° cur ve installed reduces the available length by 0.80 metres. – The insertion of the condensation collector (8) is obligatory in C32 discharge type. – The i nsert ion of the condensatio n c ollect or (8) is obl iga to ry in C42 disch a rge typ e

when the stretch "y” is longer than 1.3 metres.

117

wall with rounded glass wool 30 mm thick and with a density of 50 kg/m2.

Th e ma xi mu m to t al le ng th , w h i ch i s t h e sum of lengths of the aspiratio n and discharge pipes, is determined by the loss of charge of the single accessories inserted and must not result as more than 7.0 mm H

O in version “20” - 7.6 mm H2Oin

version “25”-9mmH

O in version “30” -

12 mm H

O in version “35”.

For the loss of ch a rge of the accessori e s , refer to Table 1 and to the example given in fig. 7.

2.8.1 Separate ducts kit

The separate ducts kit code 8089904 (fig.

8) is supplied with the aspiration diaphragm which must be used, according to the maximum los s of ch a rge allo wed in both the ducts, as indicated in fig. 8/a. To use the air inta ke vent in this type of discharge, the following operations mus t be carried out (fig. 9): – Re m ove the ba se of the air inta ke ve n t

by cutting it with a tool (a);

Example of allowable installation “25 BF” calculation in that the sum of the head losses of the single fittings is less than 7.6 mm H

Intake Outlet

7 meter horizontal pipe ø 80 x 0.20 1.40 – 7 meter horizontal pipe ø 80 x 0.30 – 2.10 No. 2 90° elbows ø 80 x 0.35 0.70 – No. 2 90° elbows ø 80 x 0.40 – 0.80 No. 1 wall terminal ø 80 0.15 0.50

Total head loss 2.25 + 3.40 = 5.65 mmH

With this total head loss, remove the segments from No. 1 to No. 7 fr om diaphragm in t he intake pipe.

Fig. 8

Fig. 8/a

Fig. 7

KEY 1 ø 125/95 sponge seal 2 Fixing screw 3 Flue outlet flange 4 Inlet air diaphr agm 6 Manifold with intakes

20 25 30 35

K mm 180 180 205 205

TABLE 1

Accessories ø 80 Load loss (

mmH2O)

20 25 30 35

Intake Outlet Intake Outlet Intake Outlet Intake Outlet

90° curve MF 0.30 0.35 0.35 0.40 0.45 0.50 0.65 0.70

45° curve MF 0.25 0.30 0.30 0.35 0.40 0.45 0.60 0.65 E x t ensi on L. 1000 (hori z o n t a l ) 0 .15 0.25 0.20 0.30 0.25 0.35 0.30 0.40

E x tensi on L . 1000 (ve rt i c a l ) 0 .15 0.05 0.20 0.10 0.25 0.15 0.30 0.20

Wall terminal 0.10 0.40 0.15 0.50 0.20 0.80 0.20 1.20

T-shaped condensation collector --- 0.70 --- 0.80 --- 1.00 --- 1.40

Roof exit terminal* 1.30 0.05 1.60 0.10 2.00 0.20 2.50 0.30

* The loss of the roof exit terminal in aspiration concludes the collector code 8091400

No. s e g m e n t s Total load loss

mm H2O

to re m ove

20 25 30 35

none 0 ÷ 2.0 0 ÷ 0.8 - -

No. 1 2.0 ÷ 3.0 0.8 ÷ 1.6 - -

No.1e2 3.0 ÷ 4.0 1.6 ÷ 2.4 0 ÷ 1.0 0 ÷ 1.0 from No. 1 t o 3 4.0 ÷ 5.0 2.4 ÷ 3.1 1.0 ÷ 2.0 1.0 ÷ 2.0 from No. 1 t o 4 5.0 ÷ 6.0 3.1 ÷ 3.8 2.0 ÷ 3.0 2.0 ÷ 3.0 from No. 1 t o 5 6.0 ÷ 7.0 3.8 ÷ 4.5 3.0 ÷ 4.0 3.0 ÷ 4.0 from No. 1 to 6 --- 4.5 ÷ 5.2 4.0 ÷ 4.8 4.0 ÷ 5.0 from No. 1 to 7 --- 5.2 ÷ 5.8 4.8 ÷ 5.6 5.0 ÷ 6.0 from No. 1 to 8 --- 5.8 ÷ 6.4 5.6 ÷ 6.4 6.0 ÷ 7.0 from No. 1 t o 9 --- 6.4 ÷ 7.0 6.4 ÷ 7.2 7.0 ÷ 8.0

from No. 1 to 10 --- - 7.2 ÷ 8.0 8.0 ÷ 10.0

without diaphragm

--- 7.0 ÷ 7.6 8.0 ÷ 9.0 10.0 ÷ 12.0

118

– Turn the air intake vent upside down and

replace the gasket (5) with that supplied in the kit code 8089904;

– Insert the aspiration diaphragm supplied

in t he kit code 80899 04, pushing it home;

– Only for versions "20 BFT” fit onto the

diaphragm the plastic reducer supplied together with the boiler.

Now the extension or the curve can be fitted into the special seat in order to complete the aspiration pipe (no washer or sealant is necessary).

2.8.2 Outlet systems

The diagrams in f ig. 9/a illust ra te a number of examples of different types of sepa-

max 0,5 m

C12 B52

C52 B52

C32

C42

C82 B22

3 2

8 3

KEY

1 Separate flue kit code 8089904

90° elbow MF (n° 6) code 8077410

90° elbow MF with intake code 8077407

Isolated 90° elbows MF code 8077408

Extension L. 1000 (n° 6) code 8077309

3b Insulated e

xtension L. 1000 code 8077306

Extension L. 500 (n° 6) code 8077308

Extension L. 135 code 8077304

Outlet terminal code 8089501 5 Int.-est. ring kit code 8091500 6

Intake terminal code 8089500 7

45° elbow MF (n° 6) code 8077411 8

Condensation outlet L. 135 code 8092800 9 Doubler fitting code 8091400

10 Tile with ar ticulated joint code 8091300 11 Roof outlet terminal L. 1390 code 8091201 12 Tee condensation outlet code 8093300

Fig. 9/a

IMPORTANT: In type C52 the outlet and inlet flues must not come out on opposite walls.

ATTENTION: The three seats foreseen on the diaphragm allow for fitting the air intake vent in only one position (the enumeration of th e sectors faces inwards).

Fig. 9

CONFIGURATION C62: discharge and aspiration is by means of pipes available on sale and certified separately (the pressure loss in the ducts must be calculated according to the St andard UNI EN 13394)

In vers. “20 BFT” fit the plastic reducer supplied with the boiler in the position indicated.

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