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