Viessmann VITOPEND 100 WH0A Datasheet Download Page 28

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Vitopend 222 for open flue operation

Wall mounted boiler for natural gas and LPG to DVGW Code of
Practice G260 [Germany] and EN 437

With modulating atmospheric burner

Components integrated into the equipment:

–

DHW primary cylinder

–

"Aqua-Bloc" hydraulic unit with multi-connect system

–

Diaphragm expansion vessel

–

Single stage heating circuit pump

–

Diverter valve with stepper motor

Fully plumbed and wired

Packed separately:
Vitotronic 100 for constant temperature operation
or
Vitotronic 200 for weather-compensated operation

Natural gas/LPG version

The Vitopend is factory-fitted for natural gas.

A kit for conversion to LPG is supplied to order.

Vitopend 222 for balanced flue operation

Wall mounted boiler for natural gas and LPG to DVGW Code of
Practice G260 [Germany] and EN 437

With modulating pressure-jet burner

Two-stage fan with automatic flue gas adaptation

Components integrated into the equipment:

–

DHW primary cylinder

–

"Aqua-Bloc" hydraulic unit with multi-connect system

–

Diaphragm expansion vessel

–

Single stage heating circuit pump

–

Diverter valve with stepper motor

Fully plumbed and wired

Packed separately:
Vitotronic 100 for constant temperature operation
or
Vitotronic 200 for weather-compensated operation

Natural gas/LPG version

The Vitopend is factory-fitted for natural gas.

A kit for conversion to LPG is supplied to order.

Design information

Installation for balanced flue operation

The Vitopend is a boiler type B

, B

, C

12x

, C

32x

, C

42x

, C

or C

82x

to TRGI '86/96.

The Vitopend can be installed for

balanced

flue operation

inde-

pendent

of the size and ventilation of the boiler room.

It may, for example, be installed in rooms with personnel traffic
or in accommodation rooms, in ancillary rooms without ventila-
tion, in cupboards and recesses without maintaining minimum
clearances to combustible components as well as in attic rooms
(pitched attics and ancillary rooms) where the balanced flue
pipe can be directly routed through the roof.

The installation location must be safe from the risk of frost.

The maximum ambient temperature of the system should not
exceed 45 °C.

Provide a drain in the boiler room for the blow-off line of the
safety valve and, if required, for the condensate trap of the
balanced flue system.

Electrical interlocks for extractors (extractor hoods, etc.) are not
required with balanced flue operation.

Installation for open flue operation

As equipment of type B

11BS

is being installed, the boiler room is

subject to the following requirements to TRGI '86/96:

Avoid air contamination through halogenated hydrocarbons (e.
g. as in sprays, paints, solvents and cleaning agents)

Avoid very dusty conditions

Avoid high levels of humidity

Protect against frost and ensure good ventilation

Provide a drain in the boiler room for the blow-off line of the
safety valve.

The maximum ambient temperature of the system should not
exceed 45 °C.

Secure the Vitopend near the chimney stack/duct.

In rooms where air contamination from

halogenated hydrocar-

bons

is to be expected, operate the boiler only in balanced flue

mode.

If these instructions are not observed, any consequential losses
directly related to any of these causes are excluded from our war-
ranty.

Installation location
Permissible:

Boiler installation on the same floor

Living space with interconnected room ventilation

Adjacent rooms with interconnected room ventilation (larders,
basement, utility rooms, etc.)

Adjacent rooms with apertures to the outside (ventilation air/
extract air 150 cm

or each with 2 × 75 cm

at the top and bottom

of the same wall)

Attic rooms, but only with adequate minimum chimney height (to
DIN 18160

–

4 m above inlet).

Not permissible:

Stair wells and common hallways; exception: detached and two
family homes of low height (top edge of the floor in the top
storey < 7 m above ground level)

Bathrooms and toilets without outside windows with duct venti-
lation

Rooms in which explosive or flammable materials are stored

Rooms which are ventilated mechanically or via individual duct
systems to DIN 18117-1.

5822

335-1

VIESMANN

VITOPEND 222

Delivered condition