System Examples; Hydraulic Connection Of The Cylinder Loading System; Vitocal 200-A); Cylinder With External Heat Exchanger (Cylinder Loading System) And Heating Lance - Viessmann VITOCAL Series Technical Manual

Design information
Vitocal 200-A
Heat pump operating mode
Mono mode
Dual mode
To ensure the DVGW Directive is fulfilled, an instantaneous heating
water heater or second heat generator should be installed, so that
DHW temperatures reach > 60 °C. Equipping the heat pump with an
instantaneous heating water heater fulfils this requirement.

System examples

DHW cylinder with internal indirect coils
WW
KW
Hydraulic scheme when using Vitocell 100-V, type CVWA
Heat pump connection
A
Immersion heater EHE can be installed in top or bottom sec-
B
tion
KW Cold water
DHW DHW
Equipment required
Pos. Designation
Cylinder temperature sensor
eR
Spring-loaded check valve
rW
Immersion heater EHE
rR
DHW circulation pump
rZ
DHW cylinder
rI
7.13 Hydraulic connection of the cylinder loading system (for heat pump cascade with

Vitocal 200-A)

Cylinder with external heat exchanger (cylinder loading system) and heating lance

During the loading process (no draw-off), cold water from the cylin-
der is extracted from the lower section by means of the cylinder
loading pump. The water is heated in the heat exchanger and resup-
plied to the cylinder via the heating lance mounted in the flange.
VITOCAL
(cont.)
3 to 5 occupants
DHW cylinder
Vitocell 100-V/100-W, type CVAA
Vitocell 100-V, type CVWA
Vitocell 100-V/100-W, type
CVBB
6 to 8 occupants
Capacity DHW cylinder
300 l Vitocell 100-V, type CVA
300 l Vitocell 100-V, type CVWA
390 l
Vitocell 100-L, type CVL
+ cylinder loading system
300 l Vitocell 100-V/100-W, type
CVBB
DHW cylinder specification
See technical guides for DHW cylinders.
WW
WW
eR
rR
KW
Hydraulic scheme when using Vitocell 100-B, type CVBB or
Vitocell 100-W, type CVBB, 300 l (as dual mode system) or
Vitocell 100-V, type CVAA, 300 l
External heat generator connection
A
Heat pump connection
B
KW Cold water
DHW DHW
Quantity Part no.
1 7438702
1 On site
1 See Viessmann pricelist.
1 See Vitoset pricelist.
1 See Viessmann pricelist.
The generously sized outlet apertures in the heating lance result in
low flow velocities, which in turn provide clear temperature stratifica-
tion inside the cylinder.
DHW booster heating is possible if an additional immersion heater is
installed (on site).
Capacity
rZ
rW
A
B
VIESMANN
500 l
500 l
500 l
500 l
7
125