Viessmann VITOCAL 300-G Technical Manual page 27

Design information
Equipment required
Pos. Description
1 Heat pump stage 1
2
Heat pump control unit
9 Heat pump stage 2
qT Primary pump (heat pump stage 1)
qZ Flow temperature sensor, primary circuit
qU
Return temperature sensor, primary circuit
wP Brine accessory pack
wQ Pressure switch, primary circuit
wW Brine distributor, geothermal probes/collectors
wT Primary pump (heat pump stage 2)
wU Geothermal probes/collectors
One common primary pump (on site)
wQ wQ
P P
P P
wP
qT
wW
wU
P Primary circuit interface
Equipment required
Pos. Description
1 Heat pump stage 1
2
Heat pump control unit
9 Heat pump stage 2
qT Common primary pump
qZ Flow temperature sensor, primary circuit
qU
Return temperature sensor, primary circuit
wP Brine accessory pack
wQ Pressure switch, primary circuit
wW Brine distributor, geothermal probes/collectors
wU Geothermal probes/collectors
VITOCAL 300-G
(cont.)
qZ
P
qU
2
9 1
3
VIESMANN
27