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Installation and Maintenance 45
Hot Water Coil Piping
Figure 39
Typical Piping for Type WC Water Coil
Figure 40
Typical Piping for Type W Two-Row Water Coil
Refer to
Figure 39
through
Figure 42
for typical hot
water coil piping.
q Check the coil for fin damage and straighten if
necessary.
q Check that the coil is installed correctly with the
air flow in the same direction as indicated on the
nameplate or coil casing.
Code of System Components (Piping Diagrams
FT
Float and thermostatic steam trap
BT
Bucket steam trap
GV
Gate valve
OV
Automatic two-position (on-off) control valve
TV
Automatic three-way control valve
VB
Vacuum breaker
CV
Check valve
ST
Strainer
AV
Automatic or manual air vent