Viessmann Vitopend 100-W Guide rapide

Installation and service

instructions

for contractors

VIESMANN

Vitopend 100-W

Type WH1D, 10.7 to 24.8 kW and 13.2 to 31 kW

Gas system and combi boilers

for balanced flue operation

Natural gas and LPG version

For applicability, see the last page

VITOPEND 100-W

5441 429 UAE 9/2012 Please keep safe.

Please follow these safety instructions closely to prevent accidents and mate-

rial losses.

Safety instructions explained

Danger

This symbol warns against the

risk of injury.

!Please note

This symbol warns against the

risk of material losses and envi-

ronmental pollution.

Note

Details identified by the word "Note" con-

tain additional information.

Target group

These instructions are exclusively

designed for qualified personnel.

■ Work on gas equipment must only be

carried out by a qualified gas fitter.

■ Work on electrical equipment must

only be carried out by a qualified elec-

trician.

■ The system must be commissioned by

the system installer or a qualified per-

son authorised by the installer.

Regulations

Observe the following when working on

this system

■ all legal instructions regarding the pre-

vention of accidents,

■ all legal instructions regarding envi-

ronmental protection,

■ the Code of Practice of relevant trade

associations.

■ all current safety regulations as

defined by DIN, EN, DVGW, TRGI,

TRF, VDE and all locally applicable

standards.

If you smell gas

Danger

Escaping gas can lead to explo-

sions which may lead to serious

injury.

■ Do not smoke. Prevent naked

flames and sparks. Never

switch lights or electrical appli-

ances ON or OFF.

■ Close the gas shut-off valve.

■ Open windows and doors.

■ Remove all people from the

danger zone.

■ Notify your gas or electricity

supplier from outside the build-

ing.

■ Shut off the electricity supply to

the building from a safe place

(outside the building).

If you smell flue gas

Danger

Flue gas can lead to life-threat-

ening poisoning.

■ Shut down the heating system.

■ Ventilate the boiler room.

■ Close all doors in the living

space.

Safety instructions

5441 429 UAE

Working on the system

■ When using gas as fuel, also close the

main gas shut-off valve and safeguard

against unauthorised reopening.

■ Isolate the system from the power sup-

ply and check that it is no longer 'live',

e.g. by removing a separate fuse or by

means of a main isolator.

■ Safeguard the system against unau-

thorised reconnection.

!Please note

Electronic modules can be dam-

aged by electrostatic dis-

charges.

Touch earthed objects, such as

heating or water pipes, to dis-

charge static loads.

Repair work

!Please note

Repairing components that fulfil a

safety function can compromise

the safe operation of your heating

system.

Replace faulty components only

with original Viessmann spare

parts.

Ancillary components, spare and

wearing parts

!Please note

Spare and wearing parts that

have not been tested together

with the heating system can com-

promise its function. Installing

non-authorised components and

non-approved modifications or

conversions can compromise

safety and may invalidate our

warranty.

For replacements, use only orig-

inal spare parts supplied or

approved by Viessmann.

Safety instructions

Safety instructions (cont.)

5441 429 UAE

Installation instructions

Preparing for installation

Product information.............................................................................................. 5

Preparing for installation....................................................................................... 5

Installation sequence

Installing the boiler and making all connections................................................... 6

Flue gas connection............................................................................................. 7

Gas connection.................................................................................................... 11

Opening the control unit casing............................................................................ 12

Electrical connections........................................................................................... 13

Service instructions

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 16

Further details regarding the individual steps....................................................... 18

Troubleshooting

Function sequence and possible faults................................................................ 35

Fault messages on the display............................................................................. 36

Repairs................................................................................................................. 38

Function description

Control and display elements............................................................................... 44

Heating mode....................................................................................................... 44

DHW heating........................................................................................................ 44

Designs

Connection and wiring diagram............................................................................ 46

Parts lists............................................................................................................ 48

Commissioning/service reports........................................................................ 57

Specification....................................................................................................... 58

Certificates

Declaration of Conformity for the Vitopend 100-W............................................... 60

Keyword index.................................................................................................... 61

Index

5441 429 UAE

Vitopend 100-W, WH1D

Set up for operation with natural gas E.

May be converted to alternative gas types with a conversion kit.

The Vitopend 100-W should generally only be delivered to those countries specified

on the type plate. For deliveries to alternative countries, an approved contractor, on

his own initiative, must arrange individual approval in accordance with the law of the

land.

Preparing for installation

Cold water installation

ACold water connection, boiler

BDrain

CVisible discharge pipe outlet point

DSafety valve

ENon-return valve

FShut-off valve

GCold water

HSafety assembly

Safety assembly H to DIN 1988 is

required, if the mains water supply pres-

sure exceeds 10 bar, and no DHW pres-

sure reducing valve is installed (to

DIN 4753).

Only use a non-return valve or a com-

bined shut-off and non-return valve in

conjunction with a safety valve.

If a safety valve is installed, remove the

toggle from the cold water shut-off valve

of the boiler, preventing the valve being

closed manually.

Anti-water hammer device

We recommend the installation of an

anti-water hammer device near pressure

shock generators if the pipework to

which the boiler is connected comprises

taps where water hammer may be cre-

ated (e.g. pressure washers, washing

machines or dishwashers).

Preparing for installation

Product information

5441 429 UAE

Installation

!Please note

To prevent equipment damage,

install all pipework free of load and torque stresses.

Note

Prepare the gas, water and power connections using the installation template A

supplied.

≥ 350

Ø10

AInstallation template

Installation sequence

Installing the boiler and making all connections

5441 429 UAE

Flue gas connection

Prior to installation check whether a flue gas orifice plate is required (see the following

table).

Installation sequence

Installing the boiler and making all connections (cont.)

5441 429 UAE

Installation

Flue gas orifice plate (internal 7)

Routing Type

(de-

sign)

Bal-

anced

flue sys-

tem

24.8 kW 31 kW

Flue gas +

ventilation

air pipe

length

Re-

stric-

tor

Flue gas +

ventilation

air pipe

length

Re-

stric-

tor 7

mm m mm m mm

External wall con-

nection

C12x 60/100 ≤ 1 41 ≤ 1 47

> 1 ≤ 3 44 > 1 ≤ 3 —

80/125 ≤ 10 41 ≤ 6 46

> 6 ≤ 8 —

Vertical roof out-

let

C32x 60/100 ≤ 1.25 43 ≤ 2 47

> 1.25 ≤ 5 44 > 2 ≤ 3 —

80/125 ≤ 1.25 38 ≤ 1.25 44

> 1.25 ≤ 11 41 > 1.25 ≤ 6 46

> 11 ≤ 12 43 > 6 ≤ 10 —

Connection to a

concentric chim-

ney

C42x 60/100 ≤ 2 44 ≤ 2 44

Installation sequence

Flue gas connection (cont.)

5441 429 UAE

Routing Type

(de-

sign)

Bal-

anced

flue sys-

tem

24.8 kW 31 kW

Flue gas +

ventilation

air pipe

length

Re-

stric-

tor

Flue gas +

ventilation

air pipe

length

Re-

stric-

tor 7

mm m mm m mm

Flue gas over the

roof, ventilation

air from a differ-

ent pressure area

(outside wall)

C52x 60/100 ≤ 10 44 ≤ 10 44

Separate ventila-

tion air and flue

gas routing

C82x 60/100 ≤ 2 + ≤ 4 44 ≤ 2 + ≤ 4 44

80/125 ≤ 2.5 + ≤ 4.5 44 ≤ 2.5 + ≤ 4.5 44

Flue gas over the

roof, ventilation

air from a differ-

ent pressure area

(indoor air)

B22/

B32

≤ 10 41 ≤ 4 44

> 10 ≤ 14 44 > 4 ≤ 12 46

> 14 ≤ 30 46 > 12 ≤ 20 —

Installation sequence

Flue gas connection (cont.)

5441 429 UAE

Installation

CBA

ABoiler flue connection bend for the

horizontal installation of a flue sys-

tem 60/100

BFlue gas orifice plate

CCoaxial boiler flue connection for the

vertical installation of the flue sys-

tems 60/100 and 80/125

Install the flue system.

Flue system installation instruc-

tions

Note

An inspection piece with condensate

trap must be installed in the balanced

flue and must be connected to the con-

densate drain.

Balanced flue system 80/80 mm

Always thermally insulate the ventilation air pipe in unheated rooms.

Installation sequence

Flue gas connection (cont.)

5441 429 UAE

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