Heating Circuit Pumps/Dhw Production; Dhw Production Planning - Viessmann Vitodens 200 WB2 Series Technical Data Manual

Heating Circuit Pumps/DHW Production

Heating Circuit Pumps
(continued)
Recommended pumps for operation with Vitodens 200 model WB2 11-44 and up
(heating circuit pump, boiler pump and DHW pump field supplied)
Performance chart courtesy of Grundfos.

DHW Production Planning

With integrated stainless steel plate heat
exchanger for instantaneous DHW heating
(model WB2 6-24C only) or with DHW
connections for DHW production via a
stand-alone DHW storage tank, the Vitodens
200 boiler series offers the right solution for
every need.
Options
DHW requirement, level of q ,
comfort and convenience
Number of draw points p
Distance of draw points from p
the boiler/DHW storage tank
System retrofit
Space requirements
+ = recommended 0 = recommended in certain cases
10
Various factors must be taken into account
when designing the DHW system, and
when deciding between the Combi heating
boiler with integrated DHW production and
the standard heating boiler with DHW
production via a stand-alone DHW storage
tank.
DHW requirement for an apartment
DHW requirement for a single-family house
Central DHW requirement for a multi-family house
Decentralized DHW requirement for a multi-family house
One draw point
Several draw points, non-simultaneous use
Several draw points, simultaneous use
Up to 23 ft./7 m (without DHW recirculation line)
With DHW recirculation line
DHW storage tank already installed
Replacement of existing Combi boiler
Minimal space available (installation in alcove)
Adequate space available (boiler room)
– = not recommended
IMPORTANT
Pump selection must be based on accurate
system flow and pressure drop calculations
(incl. DHW sizing). Viessmann offers a variety
of prewired Grundfos circulating pumps which
meet typical Vitodens system installation
requirements.
See Price List for order information.
The following prewired standard Grundfos
pumps are available for operation with the
Vitodens 200, WB2-44/60 boilers:
H Model UP 26-99 F
H Model UP 43-75 F
H Model UP 26-96 F
H Model UP 26-64 F
Please reference corresponding
performance curves (1-4) in the chart to
the left.
Such factors are:
H DHW requirement, level of comfort and
convenience
H Number of draw points
H Distance of draw points from the
boiler/DHW storage tank
H System retrofit
H Space requirements
Gas-fired Combi Gas-fired standard
boiler with heating boiler with
instantaneous DHW stand-alone DHW
production storage tank
+ +
0 +
– +
+ +
+ 0
+ 0
– +
+ –
– +
– +
+ –
+ 0
+ +