Viess VITOCROSSAL 200 CM2 Installation Instructions Manual

Installation instructions

for contractors

VIESMANN

Vitocrossal 200
Type CM2

Gas condensing boiler with MatriX radiant burner

VITOCROSSAL 200

5592 702 GB 2/2011

Dispose after installation.

2

Please follow these safety instructions closely to prevent accidents and mate­rial 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 envi­ronmental pollution.

Note

Details identified by the word "Note" con­tain additional information.

Target group

These instructions are exclusively
designed for qualified personnel.

■ Work on gas appliances must only be
carried out by a qualified gas fitter.

■ Work on electrical equipment must
only be carried out by a qualified elec­trician.

Regulations

Observe the following when working on
this system

■ all legal instructions regarding the pre­vention of accidents,

■ all legal instructions regarding envi­ronmental 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.

■ Gas Safety (Installation & Use) Reg­ulations
– the appropriate Building Regulation

either the Building regulations, the
Building Regulation (Scotland),
Building Regulations (Northern Ire­land),

– the Water Fittings Regulation or

Water Bylaws in Scotland,

– the current I.E.E. Wiring Regula-

tions.

Working on the system

■ Isolate the system from the power sup­ply and check that it is no longer 'live',
e.g. by removing a separate fuse or by
means of a mains isolator.

■ Safeguard the system against unau­thorised reconnection.

■ When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.

Safety instructions

5592 702 GB

3

Preparing for installation................................................................................... 4

Installation sequence

Siting and levelling the boiler................................................................................ 5

Fitting the thermal insulation................................................................................ 6

■ Thermal insulation mats.................................................................................... 6

■ Side panels....................................................................................................... 7

■ Front panels...................................................................................................... 8

■ Thermal insulation mat at the back and back panels........................................ 9

Control unit installation......................................................................................... 9

Connecting on the heating water side.................................................................. 10

Making the safety connections ............................................................................ 12

Electrical connections and top panel installation.................................................. 12

■ Cables............................................................................................................... 12

■ Connections to the control unit base................................................................. 13

■ Top panels and covers...................................................................................... 14

Connections on the flue gas side......................................................................... 14

■ Flue outlet and siphon....................................................................................... 14

■ Condensate drain pipe...................................................................................... 16

Burner installation................................................................................................. 17

Connecting the burner on the gas supply side..................................................... 18

Connecting the burner electrically........................................................................ 19

Fitting the burner hood......................................................................................... 20

Commissioning and adjustment........................................................................... 21

Index

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4

Clearance dimensions

C

A

A

B

b

500 (250)

600

a

500 (50)

A

Boiler

B

Burner

C

Adjustable anti-vibration boiler sup­ports (accessories)

Dimensions in brackets are minimum
clearances.
Dim. a: 500 mm
Dim. b: 400 mm

When using Viessmann accessories for
two-boiler systems, dimensions a and b
apply.

Installation instructions flue gas
header and hydraulic system
connection

Preparing for installation

5592 702 GB

5

!

Please note

Damage to the flue outlet can
lead to flue gas escaping.
Never lift or move the boiler by
the flue outlet.

Note

A suitable condensate drain (maximum
50 mm above floor level) must be avail­able in the installation room if the boiler
is installed at ground level.

A

2.

1.

1.

Insert adjusting screws A from
above into the base rails.

Note

The adjusting screws are supplied in
the pack.

2. Level the boiler horizontally. Special
foundations are not required.

Note

We recommend the installation of the
boiler on adjustable anti-vibration
supports (accessories).
Insert these from below into the base
rails.

Siting and levelling the boiler

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6

Note

All required components are included in
the carton containing the thermal insula­tion.

Thermal insulation mats

1.

2.

3.

3.

Note

In the case of balanced flue operation,
attach the ventilation air pipe before fit­ting the thermal insulation panels.

Installation instructions for acces­sories for balanced flue opera­tion

Fitting the thermal insulation

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7

Side panels

8x

6 x 10

4x

6 x 10

3.

3.

4.

4.

2.

1.

5. 8x

3.9 x 9.5

Secure the side panels to the upper fix­ing rails.

Fitting the thermal insulation

(cont.)

5592 702 GB

8

Front panels

3.9 x 9.5

2.

3.

1.

2 mm

3.9 x 9.5

Fully insert the screws into the front
panel top after fitting the boiler tempera­ture sensor and the other sensors (see
page 13).

Note

Prepare an aperture for the ventilation air
pipe in the front panel when operating
the boiler in balanced flue mode.

Installation instructions for acces­sories for balanced flue opera­tion

Fitting the thermal insulation

(cont.)

5592 702 GB