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Installation and Operating Manual / Warranty Card - SGW(S), SGW(S)B, SG(S)
5
2. Schemes
2.1. Exemplary connection scheme of the water heater in an open system
N - collection vessel for an open system
Zb - safety valve*
Z1 - shut off valve on cold water inlet
Z2 - shut off valve on hot water outlet
Z3, Z4 - shut off valve on water inlet from
the heating system to the coil
Z5 - shut off valve on water inlet from the
heating system to the coil
O - water heater's housing
Ks - water outlet (drain)
C - circulation
GE - connection for the heating element
W. S. - spiral coil
Tr. - thermometer
Cz. - sensor cover
2.2. Exemplary connection scheme of the water heater in an closed system
N - expansion vessel
Zb1 - safety valve*
Zb2 - CH installation safety valve.*
Z1 - shut off valve on cold water inlet
Z2 - shut off valve on hot water outlet
Z3, Z4 - shut off valve on water inlet
from the heating system to
the coil
Z5 - shut off valve on water inlet from
the heating system to the coil
O - water heater's housing
Ks - water outlet (drain)
C - circulation
GE - connection for the heating
element
W. S. - spiral coil
Tr. - thermometer
Cz. - sensor cover
P - circulation pump
* not included
2. Schemes
