Temspec VUD Series - Hot Water Circuit

Operation and Maint.Manual VUD VUF VDF HCD SeriesRev6.doc
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The following are typical hot water piping schematics for a unit ventilator. Please refer to the unit
ventilator “shop drawings” for a more specific layout.
Hot Water / Chilled Water with 2-way Control
Manual Air Vent
2-way Control Valve
MIXED
AIR
Strainer
MV
Isolation Valve
Isolation Valve
Balancing Valve
Return
Supply
WATER
COIL
Hot Water / Chilled Water with 3-way Control
MIXED
AIR
C
Strainer
NO
NC
3-way Control Valve
Manual Air Vent
MV
Isolation Valve
Balancing Valve
Isolation Valve
Return
Supply
WATER
COIL
Warning: City water is very corrosive to brass components. Provide water treatment as soon as the
system is charged to avoid premature leaks and/ or failure of internal components.
Hot Water Circuit