Vitodens 111-W 2.1 Product Description; Benefits; Recommendation For Application; Delivered Condition - Viessmann VITODENS 111-W Technical Manual

Vitodens 111-W
2.1 Product description

Benefits

2
■ Particularly space efficient gas condensing boiler with integral
stainless steel loading cylinder
■ Standard seasonal efficiency [to DIN] of up to
98 % (H ) [gross cv] / 109 % (H
s
■ Durable and efficient thanks to the Inox-Radial heat exchanger
■ Modulation range up to 1:4

Recommendation for application

■ New build
E.g. pre-fabricated houses and housing association projects:
Installation in utility rooms and attics

Delivered condition

■ Modulating MatriX cylinder burner
■ Control unit for constant temperature and weather-compensated
operation
The outside temperature sensor (accessory) is required for
weather-compensated operation
■ Integral DHW heating via plate heat exchanger and loading cylin-
der

Tested quality

CE designation according to current EC Directives
ÖVGW Quality Mark for gas and water equipment
VIESMANN
10
) [net cv]
i
A Inox-Radial heat exchanger made from stainless steel - for high
operational reliability, a long service life and high heating output
on a very small footprint
B Loading cylinder made from stainless steel
C Modulating MatriX cylinder burner
D Integral diaphragm expansion vessel
E Variable speed combustion fan for quiet and economical opera-
tion
F Integral, variable speed high efficiency circulation pump
G Digital control
■ Modulating MatriX cylinder burner with a long service life thanks to
stainless steel MatriX gauze – resistant to high temperature loads
■ Easy-to-use control unit with manual output restriction and option
to connect modulating room thermostats
■ High DHW convenience due to cylinder loading system and inte-
gral stainless steel loading cylinder (46 l capacity)
The Vitodens 111-W is the ideal product, particularly in new build,
as it can be installed before the screed is put down.
■ Modernisation:
Replacement of gas system boilers, floorstanding atmospheric gas
boilers and oil/gas boilers with DHW cylinders below
■ Safety valves, expansion vessel (8 l)
■ Circulation pump and 3-way diverter valve
■ Fully plumbed and wired
■ Boiler flue connection
Preset for operation with natural gas. Conversion within gas groups
E/LL is required.
Conversion to LPG requires a conversion kit (standard delivery).
Meets the requirements for the "Blue Angel" eco-label RAL UZ 61
VITODENS