Replacing Third Party Appliances With The Vitodens 200-W Or 300-W - Viessmann VITODENS 300-W Technical Manual

Design information
(cont.)
A Pre-plumbing jig
B Vitodens position
C Area for power cables.
Allow cables to protrude approx. 1300 mm from the wall.
E Drain
GA Gas connection R ½

6.2 Replacing third party appliances with the Vitodens 200-W or 300-W

Using an adaptor, the Vitodens hydraulic connections are compatible
with Ceramini-Z-SR, Cerastar-ZR/-ZWR and Thermoblock-VC110E-/
VC112E/-VC/-VCW boilers.
For modernisation projects, adaptors are available as accessories
(see pricelist). These comprise connection components for the heating
water and DHW sides and fixing components for replacing the third
party appliances listed below with a Vitodens.
Replacing these boilers with the Vitodens will not result in a greater
installation effort compared to replacing them with a same-brand appli-
ance.
VITODENS
A B C
HV
E
HR
GA
HR
HV
KW Cold water R ½
SIV Safety valve on the DHW side
WW DHW R ½
Where a wall mounted gas boiler is replaced by a Vitodens 200-W or
300-W gas condensing boiler, the flue must also be replaced with a
system that is suitable for "condensing operation" (see pricelist for "flue
systems for the Vitodens").
Match up the flue connections on site.
Note
For modernisation projects, the State Building Regulations [Germany]
require the on-site installation of a gas shut-off valve with thermally
activated shut-off facility.
SIV
KW
WW
Heating return R ¾
Heating flow R ¾
6
VIESMANN
61