EAS ELECTRIC ECH Serie Manual De Instalación página 65

4.2 Connection drawing of pipeline system
Main unit
unit
unit
This is the water system of standard module, which pump is not provided.
Stop valve
Y-shaped filter
V.2
8
Differential pressure by-pass valve
Auxiliary electric heater
Symbol explanation
Pressure gauge Flexible joint
Thermometer Check valve
Fig. 4-1
Expansion tank
Water replenishing
Dirt discharge valve
Y-type filter,
requiring≥ 16 mesh
Drain valve
Gate valve Automatic discharge valve
Terminal
Two-way valve
Three-way valve