Viessmann VITOCELL 100-W Technical Guide

Index
1. Sizing systems for DHW heating 1.1 Basics ........................................................................................................................... 4
■ General information .................................................................................................. 4
■ Irregular DHW demand ............................................................................................. 4
■ Constant DHW demand ............................................................................................ 4
■ High DHW demand ................................................................................................... 4
■ Heating systems with special requirements for return temperatures ........................ 4
■ EDIS calculation program ......................................................................................... 4
■ Hydraulic connection ................................................................................................. 4
2. Product information 2.1 Product description ....................................................................................................... 5
■ Vitocell 100-H, type CHA .......................................................................................... 5
■ Vitocell 300-H, type EHA .......................................................................................... 5
■ Vitocell 100-V, types CVA, CVAA, CVAA-A .............................................................. 5
■ Vitocell 100-V, type CVWA ....................................................................................... 5
■ Vitocell 300-V, type EVIA-A, EVIA-A+ ...................................................................... 5
■ Vitocell 100-W, types CUGA, CUGA-A ..................................................................... 6
■ Vitocell 100-L, type CVLA and Vitotrans 222 ............................................................ 6
■ Vitocell 100-B, types CVB, CVBB, Vitocell 100-U, type CVUB and Vitocell 100-W,
type CVUC-A ............................................................................................................ 6
■ Vitocell 300-B, type EVBA ........................................................................................ 6
■ Vitocell 340-M, types SVKA, SVKC and Vitocell 360-M, type SVSB ........................ 6
■ Vitotrans 353 (freshwater module) ............................................................................ 7
2.2 Overview of product features ........................................................................................ 7
2.3 Intended use of Viessmann cylinders ........................................................................... 7
3. Selecting the cylinder type 3.1 Selection according to N
L
factor ...................................................................................
8
■ General information .................................................................................................. 8
■ DHW cylinder selection ............................................................................................. 8
■ Selection diagrams, cylinder loading system Vitocell 100-L, type CVLA, with
Vitotrans 222 ............................................................................................................. 12
3.2 Selection according to continuous output ..................................................................... 13
4. Sizing 4.1 Sizing according to peak draw-off rate and DIN 4708-2 ............................................... 14
■ Application ................................................................................................................ 14
■ Calculating the heat demand for DHW heating in residential buildings .................... 14
■ Calculating the applicable draw-off demand per draw-off point to be considered .... 15
■ Calculating the demand factor N ............................................................................... 15
■ Boiler supplement Z
K
................................................................................................
17
■ 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 ..................... 19
■ Calculating the heat demand for DHW heating for sports halls ................................ 20
4.2 Sizing according to peak flow rate with reference to DIN 1988-300 ............................. 22
■ Application ................................................................................................................ 22
■ Calculating the DHW demand ................................................................................... 22
■ Calculating the required buffer volume ..................................................................... 23
4.3 Sizing according to continuous output .......................................................................... 24
■ Application ................................................................................................................ 24
■ Determining the required DHW cylinder, example 1 (with constant flow tempera-
tures) ......................................................................................................................... 24
■ Determining the required DHW cylinder, example 2 (with a fixed heat source tem-
perature differential) .................................................................................................. 24
5. Cylinder loading systems —
Vitocell 100-L with Vitotrans 222
5.1 Applications and advantages ........................................................................................ 27
5.2 Function description of the cylinder loading system ..................................................... 28
■ Operation with modulating flow temperature ............................................................ 28
■ Operation with constant flow temperature ................................................................ 28
■ Operation with a heat pump in conjunction with a heating lance for DHW heating .. 29
5.3 General formulas for calculating the cylinder loading system ....................................... 31
■ Calculation based on water volume .......................................................................... 31
■ Calculation based on heat volume ............................................................................ 31
5.4 Sample calculation ........................................................................................................ 32
■ Calculation of the cylinder size based on water volume ........................................... 32
■ Calculation of the cylinder size based on heat volume ............................................. 32
6. Installation — DHW cylinders 6.1 Connection on the DHW side ....................................................................................... 33
■ General information .................................................................................................. 33
Index
2
VIESMANN
DHW heating
5414646

Viessmann VITOCELL 100-W Specifications

General

Brand	Viessmann
Model	VITOCELL 100-W
Category	Boiler
Language	English