Installation With Mounting Frame; Installation With A Self-Supporting Mounting Frame - Viessmann VITODENS 200-W Technical Manual

Installation accessories
Calculating the transferable output (examples)
The sub-mounting kit is equipped with an integral balancing valve. This
enables the flow rate via the plate heat exchanger to the regulated
heating circuit to be restricted as required.
The maximum output that can be transferred via the sub-mounting kit
plate heat exchanger is 14 kW. For balanced flow rates between the
regulated heating circuit (sub-mounting kit) and the unregulated heat-
ing circuit (radiator heating circuit), the pressure drop in the sub-
mounting kit must be increased. The integral balancing valve is used
for this purpose.
For precise adjustment of the flow rate, a flow meter (available as an
accessory) can be fitted into the flow line of the unregulated heating
circuit. The rated circulation water volume of the boiler (see specifica-
tion), minus the flow rate through the sub-mounting kit plate heat
exchanger, results in the flow rate of the unregulated heating circuit.

Installation with mounting frame

Mounting frame consisting of:
■ Diaphragm expansion vessel, rated capacity 18 litres
■ Fittings on the heating water and DHW side
■ Boiler drain & fill valve
■ Gas angle valve R ½ with integral thermally activated safety shut-off
valve
■ Flexible connecting line for the diaphragm expansion vessel
All fittings are located under the boiler covers.

Installation with a self-supporting mounting frame

Self-supporting mounting frame
With valves and gas angle valve G ¾ with thermally activated safety
shut-off valve
■ for gas combi boiler with threaded fittings
Part no. Z002 352
■ for gas boiler with threaded fittings
Part no. Z002 354
VITODENS
(cont.)
Example:
Vitodens 300-W, 5.2 -26 kW
■ Rated circulation water volume at ΔT 20 K: 1018 l/h
■ Output for regulated heating circuit (assumed): 13 kW
■ Resulting flow rate, primary side, plate heat exchanger at ΔT 20 K:
■ Flow rate of unregulated heating circuit (to be adjusted via the bal-
Mounting frame
for gas boilers (for the Vitodens 300-W, 26 and 35 kW only)
■ for installation on finished walls with threaded fittings
■ for installation on unfinished walls
Ceiling extension for the self-supporting mounting frame
Part no. 7329 151
560 l/h
ancing valve): 1018 l/h – 560 l/h = 458 l/h
Part no. Z005 587
Part no. Z005 588
5
VIESMANN
45