Pre-Installation With The Sub-Mounting Kit With Mixer – Installation On Finished Walls - Viessmann VITODENS 300-W Technical Manual

Design information
(cont.)
A
Showing pre-plumbing jig for Vitodens 200-W
A Vitodens
B Pre-plumbing jig
C Area for power cables.
Allow all cables to protrude approx. 800 mm from the wall.
D Compulsory in conjunction with DHW cylinders below the
boiler. Otherwise recommendation only.
E Drain
GA Gas connection Rp ½
Pre-installation with the sub-mounting kit with mixer – installation on finished walls
Required accessories:
■ Sub-mounting kit:
With plate heat exchanger, circulation pump, 3-way mixer, bypass,
mixer electronics, flow temperature sensor, cover and installation
template
■ Pre-plumbing jig:
With fixing components, valves and gas shut-off valve Rp ½ with
integral thermally activated safety shut-off valve
■ Connection set for DHW cylinders (if installed)
Not in conjunction with the Vitocell 100-W DHW cylinder installed
below the boiler.
VITODENS
B C
SVL/WW
SRL/KW
E
HR
GA
HV
O K
F F
HR Heating return Rp ¾
HV Heating flow Rp ¾
KW Cold water Rp ½ (gas combi boiler)
OKFF Top edge, finished floor
WW DHW Rp ½ (gas combi boiler)
SRL Cylinder return G ¾ (gas boiler)
SVL Cylinder flow G ¾ (gas boiler)
For specification and accessories for the sub-mounting kit, see
page 43.
Install a drain & fill valve on site in the flow of the heating circuit with
mixer (HV2).
6
VIESMANN
55