Note: This scheme is a general example without shut-off valves or safety equipment. This does not replace the need for on-site engineering.
Equipment required
ID: 4605406_1304_03
Pos. Designation Part no.
Heat source
1
Internal unit, heat pump Vitocal 222-S, type AWT-AC 221.A / AWT-AC 221.B
or
Internal unit, heat pump Vitocal 242-S, type AWT-AC 241.A / AWT-AC 241.B
See Viessmann pricelist
2
Heat pump control unit Standard delivery pos. 1
3
Outside temperature sensor ATS Standard delivery pos. 1
4
Instantaneous heating water heater with switching module (integral) Standard delivery pos. 1
5
3-way diverter valve "Heating/DHW" (integral) Standard delivery pos. 1
6
Secondary pump (integral) Standard delivery pos. 1
qW
Safety assembly Standard delivery pos. 1
qE
Heating circuit expansion vessel See Vitoset pricelist
Vitocal 200-S/222-S/242-S
(cont.)
System examples
VIESMANN
167
5822 472 GB
5