Secondary Circuit; Heat Meter; Instantaneous Heating Water Heater; Dhw Heating - Viessmann VITOCAL 222-G Technical Manual

Installation accessories

10.3 Secondary circuit

Heat meter

d To be eligible for subsidies, the heat pump system must be equip-
ped with a heat meter.
Part no. 7419 523 (only Vitocal 222-G/242-G)
■ Flow rate range up to 1.5 m 3 /h
■ For installation in compact heat pumps

Instantaneous heating water heater

Part no. Z008 081

10.4 DHW heating

Safety equipment to DIN 1988

■ 10 bar
Part no. 7180 662
■ a 6 bar
Part no. 7179 666
Components:
■ Shut-off valve
■ Non-return valve and test connector
■ Pressure gauge connector
■ Diaphragm safety valve

Impressed current anode

Part no.7182 008
■ Maintenance free
■ In place of the supplied magnesium anode
VITOCAL
(cont.)
Note
With Vitocal 333-G/343-G, a heat metering function is integrated in the
heat pump control unit.
Instantaneous heating water heater for installation in compact heat
pumps; output up to 9 kW, ready to be plugged in electrically and
hydraulically, with
■ High limit safety cut-out
■ Control module
■ Thermal insulation
■ Hydraulic connection set
10
VIESMANN
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