Bosch Uni 5000F US 207 Manuel utilisateur

– 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

VDo not try to light any appliance.

VDo not touch any electrical switch; do not

use any phone in your building.

VImmediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions.

VIf you cannot 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 explo-

sion may result causing property

damage, personal injury or loss of

life.

Operating Instructions

Low-temperature oil and gas-fired boiler

Bosch Uni 5000F US/CA

171/207/256

6 720 648 033-00.1T

6 720 648 163- 2011/05 US/CA

2| Contents

6 720 648 163 (2011/05)

Contents

1 General safety instructions and explanation of

symbols 3

1.1 Explanation of symbols 3

1.2 Safety instructions 3

2 Product description 5

2.1 Intended use 5

2.2 Certification and testing mark 5

2.3 Disposal 5

2.4 Product description 5

3 Commissioning the heating system 6

3.1 Turning the heating system on 6

3.2 Checking the operating pressure, topping up

the boiler water and bleeding air from the

system 6

3.2.1 Checking the operating pressure 6

3.2.2 Topping up the boiler water and bleeding the

system 6

3.3 Starting up the system using the Aquastat 7

3.4 Turning the heating system off 7

3.5 Action in an emergency 7

3.6 Operating tips 8

3.7 Why is regular servicing important? 8

4 Troubleshooting 9

4.1 Identifying operating modes and resetting

faults 9

General safety instructions and explanation of symbols | 3

6 720 648 163 (2011/05)

1 General safety instructions and explanation of symbols

1.1 Explanation of symbols

Signal words are used to indicate the level of risk if

counter measures are not taken.

•Caution indicates that minor damage to property may

occur.

•Warning indicates that minor personal injury or

severe damage to property may occur.

•Danger means that severe personal injury may occur.

Very serious cases may result in death.

Notes contain important additional information.

Notes do not contain any warnings or information about

hazards or risks.

1.2 Safety instructions

If you smell gas

BTurn off the gas cock.

BOpen windows and doors.

BDo not operate any electrical switches or equipment

such as telephones, power plugs and doorbells.

BExtinguish all open flames.

BDo not smoke.

BDo not use lighters of any kind.

BWarn all ooccupants of the building, but do not ring

doorbells.

BIf you can actually hear gas escaping, leave the

building immediately. Prevent others from entering

and notify the police and fire department from

outside the building.

BFrom outside the building, call gas supplier and

approved heating contractor.

If you smell flue gas

BSwitch off the boiler (Æpage 7).

BOpen windows and doors.

BInform an authorized heating contractor.

Installation

BCorrect and proper installation and adjustment of the

burner and the controls are the fundamental

requirements for safe and economical operation of

the boiler.

BThe boiler may only be installed or converted by an

approved heating contractor.

BDo not modify any parts that carry flue gas.

BThe hot water tank may only be used for heating

domestic hot water.

BNever shut off safety valves!

Water must be able to escape from the safety valve for

the hot water system and piping when the water is

being heated.

Maintenance and servicing

Heating systems should be regularly maintained for the

following reasons:

Heating systems should be regularly maintained for the

following reasons:

•to maintain a high level of efficiency and to operate

the system economically (low fuel consumption),

Warnings are indicated by a warning

triangle and a grey background.

Notes are identified in the text by this

symbol. They are separated by horizontal

lines above and below the text.

4| General safety instructions and explanation of symbols

6 720 648 163 (2011/05)

•to achieve a high level of operational reliability,

•to maintain the cleanest combustion.

BRecommendation for users: sign a maintenance and

servicing contract with an approved heating

contractor covering annual servicing and

maintenance.

BThe flue system must be inspected once a year. Have

all parts that show any signs of damage from

corrosion or other causes replaced.

BThe boiler must be serviced by qualified boiler service

company once a year. Servicing must include the

burner, the entire flue and combustion air system and

any air inlet/outlet vents. All parts that show any signs

of damage from corrosion or other causes must be

replaced.

BServicing and repairs may only be carried out by a

trained heating contractor.

BHave any faults immediately corrected in order to

prevent damage to the system.

BThe operator is responsible for the general and

environmental safety of the heating system.

BUse only genuine Bosch spare parts. Damage caused

by the use of parts not supplied by Bosch is not

covered by the Bosch warranty.

Danger by failing to consider your own safety in an

emergency such as a fire

BNever put yourself at risk. Your own safety must

always take the highest priority.

Dangers posed by explosive and flammable materials

BAny work on components that carry oil or gas may only

be carried out by a certified heating contractor.

BDo not use or store flammable materials or liquids

(paper, thinners, paints, etc.) near the boiler.

BMaintain a clearance of at least 16 inches (40 cm)

from the boiler.

Risk of poisoning. Insufficient ventilation may cause

dangerous flue gas leaks.

BNever close off or reduce the size of air inlet or outlet

vents.

BThe boiler must not be operated until the obstruction

has been removed.

Risk of water damage

BDo not use the appliance if any part of it has been

under water.

BCall in a qualified customer service technician

immediately to check the appliance and replace any

controls that have been under water.

Combustion air

BKeep the combustion air free of corrosive substances

(e. g. halogenated hydrocarbons that contain chlorine

or fluorine compounds). In that way you will prevent

corrosion.

Instructing the operator

BThe operator must read the information on how the

boiler works and have the heating system installer

explain how to operate it.

Product description | 5

6 720 648 163 (2011/05)

2 Product description

To ensure safe, economical and environmentally friendly

use of the heating system, we recommend that you

carefully read the safety instructions and operating

instructions.

These instructions provide the operator of the heating

system with an overall view of the use and operation of

the boiler.

2.1 Intended use

The boiler is designed for heating central heating system

water and domestic hot water, in residential buildings or

apartment buildings, and light commercial installations.

Other uses are not intended.

2.2 Certification and testing mark

This appliance has been tested and certified to meet

rules and regulations in place for the US and Canadian

markets.

2.3 Disposal

BDispose of boiler packaging in an environmentally

responsible manner.

BAll heating system components that have to be

replaced should be disposed of in environmentally

responsible manner at an authorized disposal site.

2.4 Product description

The boiler (ÆFig. 1) is a low-temperature oil or gas-fired

appliance. Your heating contractor or installer has

equipped the boiler with an appproved burner.

The main components of the boiler (ÆFig. 1) are:

•Optional Control panel or aquastat

•Boiler jacket

•Boiler block with insulation

•Customized burner

The controls monitors the boiler and system water

temperatures and controls the burner. It also includes

the safety devices.

The boiler can alternatively be fitted with a simple

aquastat control.

The boiler jacket prevents heat loss and reduces noise.

The boiler block transfers the heat generated by the

burner to the heating water. The thermal insulation

reduces radiant and standby heat loss.

Fig. 1 Boiler without burner

1Burner door front panel

2Thermal Insulation

3Boiler block

4Boiler jacket

6 720 648 033-01.1T

6| Commissioning the heating system

6 720 648 163 (2011/05)

3 Commissioning the heating system

3.1 Turning the heating system on

Before switching on, ensure that:

•the operating water pressure is sufficient,

•the fuel supply has been turned on at the main shut-

off valve, and

•the heating system emergency shut-off switch is in

the ON position.

3.2 Checking the operating pressure,

topping up the boiler water and

bleeding air from the system

The water used for filling the heating system loses a

substantial amount of volume in the first few days due to

the release of its gas content. This causes air pockets to

form and the heating system starts to make noises.

BWith new heating systems, check the operating

pressure daily at first, topping up the boiler water and

bleeding the system and radiators (if so equipped).

BLater on, check the operating pressure monthly,

topping up boiler water and bleeding the boiler and

radiators (if so equipped).

3.2.1 Checking the operating pressure

Your heating contractor will have set the system to the

required operating pressure of at least 15 psi (1 bar) and

entered the setting in Tab. 1, page 7.

BRead the current operating pressure (psi/bar) and

temperature (°F/°C) from the temperature/pressure

gauge.

BIf the temperature/pressure gauge needle drops

below the minimum pressure marker of 15 psi (1 bar),

the operating pressure is too low. Top up the system

until the contractor's selected operating pressure is

reached.

Fig. 2 Pressure/temperature gauge

3.2.2 Topping up the boiler water and bleeding the

system

Ask your heating contractor to show you where the

boiler fill & drain valve for topping up the heating system

is located in your heating system.

BIf there the fill valve is not hard piped to the water

supply, you will need to connect a hose.

BFill the heating system by slowly opening the fill valve.

Observe the pressure gauge (pressure/temperature

gauge) while doing so.

BClose the boiler fill valve once the required operating

pressure has been reached.

BBleed the system via the air vent and the radiator

bleed valves (if so equipped).

BTop up with additional water if the pressure drops as

a result of bleeding the system.

7 747 010 720-24.2RS

CAUTION: Health risk from contaminated

domestic water.

BIt is imperative that you observe all

regulations and standards applicable in

your country regarding prevention of

domestic water contamination.

CAUTION: Risk of damage to system due to

temperature stress.

If you fill the heating system when it is hot,

the resulting temperature stress can cause

stress cracks and a leak in the boiler.

BOnly fill the heating system when cold

(the flow temperature should be no more

than 100 °F (30 °C)).

CAUTION: Risk of system damage due to

frequent topping up.

If you have to top up the heating water

frequently, the heating system may suffer

damage from corrosion or scaling due to

repeated introduction of oxygen.

BAsk your heating contractor if the local

water can be used untreated or whether

it needs to be treated.

BNotify your heating contractor if you find

you need to top up your heating system

frequently, as there may be a leak.

Commissioning the heating system | 7

6 720 648 163 (2011/05)

3.3 Starting up the system using the

Aquastat

BSwitch on emergency shut-off switch ("ON" position).

This turns on the heating system.

Fig. 3 Switching the heating system on/off using the

emergency shut-off switch (without external

controls)

3.4 Turning the heating system off

BSwitch off the emergency shut-off switch ("OFF"

position). This switches off the boiler and all its

components.

Completing final operations

BShut off fuel supply by closing main valve.

3.5 Action in an emergency

In the event of an emergency, e. g. a fire, proceed as

follows:

BNever put yourself at risk of fatal injury. Your own

safety must always take the highest priority.

BShut off fuel supply by closing main valve.

BIsolate the heating system from the mains power

supply by means of the heating system emergency

stop switch or the appropriate electrical fuse/circuit

breaker.

Operating pressure

Design operating pressure

(optimum setting) _____________ psi (bar)

Maximum heating system

operating pressure

(standard = 30 psi (2 bar)) _____________ psi (bar)

Table 1 Operating pressure (entered by system installer)

7 747 019 141-35.1RS

CAUTION: Risk of system damage from

freezing.

If the heating system has been switched off,

it may freeze up.

BLeave the heating system permanently

switched on as much as possible.

BProtect your heating system against

freezing by draining the heating system

and hot water pipes at the lowest point.

Use the heating system emergency shutoff

switch located outside the boiler room or

the heating system circuit-breaker for

emergency shutdown.

8| Commissioning the heating system

6 720 648 163 (2011/05)

3.6 Operating tips

The right fuel

To ensure it operates properly, the heating system

requires fuel of the correct type and grade.

Information on the boiler room

3.7 Why is regular servicing important?

Heating systems should be regularly maintained for the

following reasons:

•to achieve a high level of efficiency,

•to operate the system economically (low fuel

consumption),

•to maintain the cleanest possible combustion.

CAUTION: Risk of system damage from use

of incorrect fuel.

BOnly use the fuel specified. The correct

fuel is entered in Tab. 2 by the heating

system installer.

Use only this fuel

__________________________

____________________________________________ Stamp/

Date/Signature

Table 2 Fuel to be used (entered by heating system

installer)

CAUTION: Risk of boiler damage from

contaminated combustion air.

BKeep the combustion air free of corrosive

substances (e.g. halogenated

hydrocarbons that contain chlorine or

fluorine compounds).

BPrevent heavy accumulation of dust.

CAUTION: Risk of system damage from

water.

BIn the event of severe risk of flooding,

disconnect the boiler from its power

supply and shut off the fuel supply before

water enters the boiler room.

BAfter the flood has subsided, ask your

installer to check the heating system

before starting it up again.

BAll parts that have been in contact with

flood water must be replaced by a

qualified heating contractor.

CAUTION: Risk of system damage due to

lack of or inadequate cleaning and

maintenance.

BHave your heating system inspected,

cleaned and maintained by a heating

contractor once a year.

BWe recommend you sign a contract

covering an annual inspection and

maintenance on an as-required basis.

Troubleshooting | 9

6 720 648 163 (2011/05)

4 Troubleshooting

4.1 Identifying operating modes and

resetting faults

Two types of fault are distinguished:

•Burner faults and

•Control and heating system faults

If there is a burner fault the fault indicator lamp on the

burner comes on (Æburner documentation). Such faults

can generally be reset by pressing the reset button on

the burner.

Control and heating system faults are indicated on the

control unit display if it has one. More detailed

information can be found in the controls'

documentation.

Fig. 4 Resetting the burner

1Burner

Correcting burner faults

BPress reset button on burner.

6 720 648 033-02.1T

CAUTION: Risk of system damage due to

too many resets. Always follow the

burner manufacturer's instructions.

Too many resets can damage the bur-

ner's ignition transformer.

BDo not press the reset button more

than three times in a row. If the fault

does not reset after the third attempt,

localize and rectify the fault with the

help of the burner documentation.

Notify a service contractor if

necessary.

CAUTION: Risk of system damage from

freezing.

The heating system can freeze up in cold

weather if it has been switched off or

disabled by a fault shutdown.

BRectify the fault immediately and

restart the heating system.

BIf that is not possible, protect the

heating system against freezing by

draining it at the lowest point.

Canadian installations of this boiler are

required to be equipped with a blocked vent

switch (WMO) that interrupts the burner in

case of an obstructed flue gas pipe. Call

your boiler service technician if you suspect

the WMO may have tripped.

10 |

6 720 648 163 (2011/05)

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