Table Of Contents - Viessmann Vitocell 300-H Technical Manual

Index
Index
1. Sizing systems for DHW heating
2. Product information
3. Selecting the cylinder type
4. Sizing
5. Cylinder loading systems -
Vitocell 100-L with Vitotrans 222
6. Installation - DHW cylinders
VIESMANN
2
1.1 Basics ...........................................................................................................................
■ General information ..................................................................................................
■ Irregular DHW demand .............................................................................................
■ Constant DHW demand ............................................................................................
■ High DHW demand ...................................................................................................
■ Heating systems with special requirements for return temperatures ........................
■ EDIS calculation program .........................................................................................
■ Hydraulic connection .................................................................................................
2.1 Product description .......................................................................................................
■ Vitocell 100-H, type CHA ..........................................................................................
■ Vitocell 300-H, type EHA ..........................................................................................
■ Vitocell 100-V, types CVA, CVAA, CVAA-A ..............................................................
■ Vitocell 100-V, type CVWA .......................................................................................
■ Vitocell 300-V, type EVIA-A, EVIA-A+ ......................................................................
■ Vitocell 100-W, types CUGA, CUGA-A .....................................................................
■ Vitocell 100-L, type CVLA and Vitotrans 222 ............................................................
■ Vitocell 100-B, types CVB, CVBB, Vitocell 100-U, type CVUB and Vitocell 100-W,
type CVUC-A ............................................................................................................
■ Vitocell 300-B, type EVBA ........................................................................................
■ Vitocell 340-M, types SVKA, SVKC and Vitocell 360-M, type SVSB ........................
■ Vitotrans 353 (freshwater module) ............................................................................
2.2 Overview of product features ........................................................................................
2.3 Intended use of Viessmann cylinders ...........................................................................
3.1 Selection according to N
L
■ General information ..................................................................................................
■ DHW cylinder selection .............................................................................................
■ Selection diagrams, cylinder loading system Vitocell 100-L, type CVLA, with
Vitotrans 222 .............................................................................................................
3.2 Selection according to continuous output .....................................................................
4.1 Sizing according to peak draw-off rate and DIN 4708-2 ...............................................
■ Application ................................................................................................................
■ Calculating the heat demand for DHW heating in residential buildings ....................
■ Calculating the applicable draw-off demand per draw-off point to be considered ....
■ Calculating the demand factor N ............................................................................... 15
■ Boiler supplement Z ................................................................................................
K
■ Calculating the heat demand for DHW heating in commercial enterprises ............... 18
■ Calculating the heat demand for DHW heating in hotels, guest houses and resi-
dential homes ............................................................................................................ 18
■ Calculating the heat demand for DHW heating in commercial saunas .....................
■ Calculating the heat demand for DHW heating for sports halls ................................
4.2 Sizing according to peak flow rate with reference to DIN 1988-300 .............................
■ Application ................................................................................................................
■ Calculating the DHW demand ................................................................................... 22
■ Calculating the required buffer volume .....................................................................
4.3 Sizing according to continuous output ..........................................................................
■ Application ................................................................................................................
■ Determining the required DHW cylinder, example 1 (with constant flow tempera-
tures) .........................................................................................................................
■ Determining the required DHW cylinder, example 2 (with a fixed heat source tem-
perature differential) ..................................................................................................
5.1 Applications and advantages ........................................................................................
5.2 Function description of the cylinder loading system .....................................................
■ Operation with modulating flow temperature ............................................................
■ Operation with constant flow temperature ................................................................
■ Operation with a heat pump in conjunction with a heating lance for DHW heating ..
5.3 General formulas for calculating the cylinder loading system ....................................... 31
■ Calculation based on water volume ..........................................................................
■ Calculation based on heat volume ............................................................................
5.4 Sample calculation ........................................................................................................ 32
■ Calculation of the cylinder size based on water volume ...........................................
■ Calculation of the cylinder size based on heat volume .............................................
6.1 Connection on the DHW side .......................................................................................
■ General information ..................................................................................................
factor ...................................................................................
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DHW heating