Baxi Slim HP Manuel utilisateur

Slim HPSlim HP

Slim HP

Réf. : BAXI - 1373 - I - EN - 0 - 09 / 04

Installer instruction Set

Die cast high yield boiler

Ionisation and electronic ignition check

Fume safety thermostat

83 / 99 / 116 kW

Contents

1 General

2 General specifications

3 Installing the boiler

4 Installing the boiler

5 Maintenance

6 Refitting the heating unit (in case disassembly on site)

5 CC 170 control module

1 General

1.1 Description of the boiler

Theboilershaveaheatingbodyincastiron,anatmospheric

gasburnerwithdualratingtotal premixandelectronicignition

usingan intermittent pilot burner

Therange proposes 4powers, from 66 to 116kW.

These boilers are supplied with a control panel fitted with

either:

Theseboilersaredeliveredwithacontrolmodule

Theseboilersaredeliveredassembled

1.2 Directives and Standards

Theseboilersare CE certified incompliance with European

directives:

- EN656

- Gasdevices 90/396/CEE

- Yields 92/42

- Electromagneticcompatibility 89/336,

accordingto standards EN500 81-1, EN 50082-1

- Theboilers are type B11(B11BS proposed in option)

- Lowvoltage" 73/23

Designed to be used in a heating circuit with hot water at

maximumtemperature of 90 °Cand a pressureof 5

bar.

The installation and maintenance of the device must be

ensured by a qualified professional, in complance with

currentlyenforcedregulations and rulesofthe art.

GAS 2

N03891.DSF

BAXI waiveranyliabilityforany damagesresulting

from work not complying with this manual or

performed by non qualified persons.

1.3 Operating principle

Controlcycle

Uponcommissionning,the1st flapofthemaingasvalve(1)

opensandanignitor(2)ensurestheautomaticignitionofthe

ignitor burner (3) (intermittent pilot burner) with a flame

monitoredbyanionisingprobe,whichremainslitconstantly

duringthecommissionningofthemainburner(4).Thesetis

controlled by a contoller unit authorising the opening of the

mainvalve(1)andauxiliaryvalve(5)(for7and8elements).

Duringregulation,thesafetydevicesareself-checkedbefore

ignitionofthemainburner,byshortstoppageandrestarting

oftheignitionburner.

Operation:

- themainvalvehasareducedrating(1st rating),factoryset

to 60% nominal rating (2nd rating).

- theboiler’sthermostathastwostages(60%and2nd rating

100%)

- whentheboiler’stemperaturereachesthesetpoint ofthe

2nd rating,themainvalveswitchestoreducedrating.Ifthe

temperature reaches the setpoint of the 1st rating, the

thermostatstopstheburner’soperation.

- Thetemperaturedifferencebetweenthe1ststagesetpoint

and the 2nd setpoint is 10 °C.

The boilers are fitted to operate with natural gas

group G 20 - 20 mbar. For any gas change see

chapter 4.4.

BAXI certify compliance of all boilers mentioned in

this manual in reference to the appliances of the

correspondingtypes,havingtherightsofuseofthe

EC Marking according to the European Directives

for "Gas appliances" and "Boiler yields".

2 Generalcharacteristics

2.1 Characteristicsofthegas

N05439-EN.XLS

CE Nr

B11BS

kW 52.9 72 90 108 126

60% kW 31.7 43 54 64.8 75.6

kW 48.7 66.2 82.8 99.4 115.9

60% kW 29.2 39.7 49.7 59.6 69.5

45678

G20 5.7 7.6 9.5 11.4 13.3

G25 6.6 8.9 11.1 13.3 15.5

60%

100%

60%

100%

°C 135 128 134 148 125

% 55.9675

kg/h 154 191.4235.4243.2358.7

Flow rate

15°C 1013 mbar 4.2 5.6 7 8.4 9.8

60%

100%

Ø 0.3

Injector mark 215 Y

G31 Design rate (Qn)

Pressure at

injectors mbar 14.5

Fumes temperature

CO2

Fumes flow rate atdesign rate

Propane

gas 37

or 150

mbar

Øpilotburner injector

G25 Pressure at

injectors mbar 6

16.5

Injector mark 350 W

16.5

Injector mark 320W

Number ofburner injectors

Natural

gas

20,25 or

300 mbar

Øpilotburner injector Ø 0.5

Flow rate m3/h

15°C 1013 mbar Design rate (Qn)

G20 Pressure at

injectors mbar

3456

Design useful power

Low rate useful power

Number of elements

Number of burners

Type coffume duct B11

Design heatflow rate

Low rate heatrate

1312BS5053

Category II 2Esi 3P

2.2 Maindimensions

R Tapered outside threading

Rp Cylindrical inside threading

Service pressure: 5 bar

Power supply 230 V 50 Hz

Max operating temperature : 90 °C

N05496-EN.TBL

874

N05440-1.DSF

1004

143

243

485

807

Ø F

880

1190

45 51

263

874

Bleed tap

Ø 1/2

Inlet of

gas

Backflow

Outlet

Number elements 4 5 6 7 8

Sizes in mm

A 456 537 612 699

B 1080 1100 1160

C 965 975 1000

D 1003 1013

Ø F (outside) 182 202 252

Ø blackflow Rp 1" 1/4 Rp 1" 1/2

Ø outlet - inlet of gas R 1" 1/*4 R 1" 1/2

UP to Ut 15 in mbar 12 22 31 41 53

Liters 25 30 35 40 44

Weight 240 285 330 375 415

3.2 Hydraulicconnection

Connectiontotheheatingcircuitisperformedatthebackof

theheater.Connectingthefacilitytothewatermainsmustbe

performedaccordingtocurrentlyenforcedrulesoftheartand

regulations, and using a CB disconnector to fill the heating

circuit. For networks with a hardness exceeding TH 20, we

recommend installing a treatment system.

The boilers feature a modern design, their low momentum

enablesthemtoadapttoregulationdemandatanytime.With

a low water content, they require a clean circulation

water, imposing the following precautions before

connecting the boiler

- Newinstallation:Performawashing, then a rinsing, under

pressure.

- Old installation:Ask a specialist to perform a “descaling -

declogging”procedure,followedwithrinsing.

RECOMMENDATIONS:

Never fill a hot boiler with cold water. Sudden cooling

canresultinbreakagesduetothermalconstraintsinthe

cast iron block.

Connect the boiler by inserting on the backflow a

dynamic drip, adapted to the flow rate, with periodical

bleed setpoint.

IRRIGATIONOFTHEBOILER

Thefacilitymust be calculatedtoensureawaterflow inside

the boiler reaching a ∆T included between 10 and 20 K.

In case of a sudden interruption of the water flow,

the safety thermostat triggers total stoppage of

the boiler, and requires rearming.

The facility’s design must ensure sufficiently gradual

regulation to comply with the response times of the

thermostats.

01454

In this same room, storage of flammable products is

strictly forbidden.

Any partition sensitive to heat must be protected

using appropriate insulation.

3 Installing the boiler

3.1 Fitting the boiler

The boilers are designed to be installed without a base, on

the floor of the boiler room, provided it is flat, sturdy, dry

andincomustible.

Otherwise,refertothe base drawing below.

Never seal the boiler’s feet (free expansion).

Comply with the panel dimensions as the minimum space

aroundthe heater forconnecting the water and gas circuits

andformaintenance.

Heatingoutlet

Heating backflow

Gas inlet

Bleed tap

Number elements 5 6 7 8

F mm 364 445 526 607

Irons

optional

sealing

Rear

Front

300 700

N05442-1.DSF

200 100

N05441-1.DSF

N05443-1.DSF

01455-01

01304-01

01459-01

3.3 Hydraulic connection diagrams

IMPORTANT: The hydraulic connection diagram of each

installation must be determined together with the

correspondingregulation.

D Outlet facility

R Backflowfacility

Stopvalve

Valve rated at 4 bar max

Recommandedrecyclingpump

Muddrainvalve

Checkvalve

Expansiontank + pressure gauge - bleed

Boiler

Outlet

Backflow

Outlet

Backflow

Outelet

Boiler

Backflow

Boiler

Outlet

Backflow

Boiler

Outlet

Backflow

Settingvalve

Decantationdripdynamic

3-channelvalve

Primarypump

SHWloadpump

SHWexchanger

Condenser

3.4 Gasconnection

Thegasconnectionisensuredontherearleftoftheheater.

3.5 Connection to chimney

- the draft hood includes a vertical female outlet duct to

which is connected the fume duct with the dimensions

indicated(seechapter«generalcharacteristics»).

- the calculation of the fume duct must comply with the

currentlyenforcedregulations.

- place the boiler in the boiler room, ensuring the burnt gas

path to the chimney is as short as possible. The vertical

section of the duct above the draft hood must be as long

aspossible before fitting anelbow.Theextraction

measured(see diagram below), mustnot be below 0.8

mm CE nor exceed 3 mm CE (the boiler must be

operating).

- the burnt gases duct must be secured carefully and

must not be supported by the boiler. We recommend

installingaremovableduct.

N05441-1.DSF

03004-01

The position for measuring

the extraction is equal to

the Ø of the chimeney

1 meter

minimum

recommanded

Connect the phase to the strip’s L terminal.

Theline must withstandanintensityof6.3A under230V50

Hz+Ground(checkthatpowerofthepump(s)iscompatible).

Implementtheelectricconnectionasshownintheelectrical

diagramoftheinstructionset.Fitagroundwire50mmlonger

than the neutral and Phase wire to ensure tear-out safety.

The burner switch fitted on the regulation module does not

dispense with the need to fit the regulatory wall switch.

Inthecaseofinsufficientionisingcurrentduetononcompliant

neutral or ground, we recommend adding a circuit isolation

transformer with a power at least equal to 600 VA.

Control panel supply connection terminal strip

Cable paths

Avoid any contact between the sypply cable and the

drafthood.

Passage of the

supply cable

N05446.JPG

Installation diagram recommended

Table:Calculationofthefumeductsforconnectingtwo

identical boilers

3.6 Room ventilation

Theboilermustbeinstalledinaroomproperlyventilatedand

separatedfromthelivingquarters.Theorificesmustalways

bemaintainedingoodconditionofoperation,theymustallow

forminimumventilation.

3.7 Electricconnection

Thefacilitymustcomplywithcurrentlyenforcednationaland

localregulations.Notably,theelectricconnectionoftheboiler

requiresasectioningdeviceoneachpolewithaminimum3

mm distance between each contact.

Thepowersupplyterminalstripisaccessibleafterremoving

thetop(see§5.1A-B).Itislocatedinthetopleftangleofthe

regulationbracket(oppositetheboiler).

elements

Power in

1 boiler

Power in

2 boiler

Dimensions in mm

connection Ø

collector duct Ø

fumes

5 66.2 132 180 300 300

6 82.8 166 200 300 300

7 99.4 200 200 300 300

8 115.9 532 250 300 300

Nr of elements Power in kW Ventilation cross-section (cm²)

low high

5 66.2 290 * boiler room

surface

(m²) x 10

6 82.8 360

799.4435

8115.9510

* minimum high ventilation cross-section = 150 cm²

Theground socket plannedon the connectingtermi-

nalstripmustbeconnectedaspercurrentlyenforced

provisions.

N05444-1.DSF

connection Ø

collector Ø

fume duct Ø

N05445-00-1.TIF

Main power

supply

230 Vac 50 Hz

(phase imperatively

in L)

Connection of a

room thermostat

if any Heatingpump

supply

Thermostat and

thermometer bulbs

02078-01

00229-5

Boiler glove finger

with regulation probe

When fitting the capillaries, ensure they are inserted fully

in the glove finger.

1 - Overheating safety thermostat

2 - Heating outlet thermometer

3 - Regulation thermostat

4 - Tube Ø 6

Main valve

dual rating

(9-channel connector)

Ignition transformer -

Gas pressure switch

(6-channel connector)

Connecting

additional valve

(conenctor

3 channels)

Ignitionplug

Plug

ionisation

Glove

finger

glove

finger

Main valve

dual rating

(9-channel connector)

Ignition transformer -

Gas pressure switch

(6-channel connector)

Ignition

plug

Plug

ionisation

Glove

finger

glove

finger

4 Commissionningtheboiler

4.1 Connectionwithcomponents

Electricaly connect the control module and the various

components:

- Ignitiontransformerandgaspressureswitch(connector,

6channels),

- dualratingsmainvalve(9-channelconnectors)

- additionalvalve(3-channelconnector)

- connectingtheignitioncable(leftelectrode)andionisation

cable (right electrode) on the intermittent pilot burner

assembly.

- fittingthethermostatbulbs,thermometer(andregulation

probeinoption) in the glove fingerasshown in the

diagram.

Connecting 1 valve

Connecting 2 valves

N05448-1-.DSF

N05449-1.DSF

Thermostat and

thermometer bulbs

Descriptionand setting of thepressure:

- model6 elements are fittedwith a single gasvalve.

- modelswith 7 and8 elements arefitted with two valves

fittedin parallel.

- themain valveincludesadualstage regulatorusedtoset

the pressure at the injectors for nominal rating (screw A)

andminimum rating (screw B).

- the2nd valve(complementaryvalve)isasinglestage

valvewitha regulatorwhichmustbelocked.

Model 6 éléments

Models with 7 and 8 elements

03883-00

Thegasramp- burner set is factorysetdor design pressure

andreduced pressure (see gascharacteristic page 4).

Ifamodificationoftheinjectorpressure is required, proceed

asfollows:

- loosen the pressure screws at the injectors located on

the gas ramp and check the pressure with a pressure

gaugeattheappropriatepressure.

Settings and checks

- firstset the design pressure, then the minimum pressure.

- any adjustment of the nominal pressure impacts the

minimumpressure setting.

- neverserthedesignpressureabove the range indicated.

Before commissionning, check the compliance of

the burner equipment with the supply gas.

IMPORTANT: The settings must be made only by

skilledstaff

Wait for the pressure to stabilise before adjusting.

We recomment activating the dual stage regulator

several times to ensure proper setting.

The hood must be removed before performing the

settings.Inordertodothis,insertasmallscrewdriver

in one of the notches, and remove the cap slowly.

ADesign pressure setting screw

BMinimum pressure setting screw

CCap

Setting the adjustment screw for maximum pressure level

Setting the adjustment screw for minimum pressure level

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