FloAire HOT WATER COIL MODULE - Manual (Page 5)

FLUID IOM
3
Installation
1. Carefully remove the coil from the shipping package to avoid damage to the finned
surface area. Damaged fins can be straightened using an appropriate fin comb.
2. For coils with removable heads, check the torque on the nuts before installing. Refer to
Maintenance on Page 6 for recommended torque values.
3. Heatcraft recommends cleaning the coil with a commercially available coil cleaner prior
to installation. Refer to Maintenance on Page 6 for cleaning recommendations.
4. Check the coil hand designation to insure that it matches the system. Water and glycol
coils are generally plumbed with the supply connection located on the bottom of the
leaving air-side of the coil and the return connection at the top of the entering air-side of
the coil (Figure 2 - Connection Diagram). This arrangement provides counter flow heat
exchange and positive coil drainage. If a universal coil is supplied, cap off the two
unused connections.
5. Standard coils must be mounted level to insure drainability. Refer to Mounting on page
2 for leveling requirements. Coils with intermediate headers and coils with removable
box style headers can be pitched 1/8” per foot of coil finned length towards the coil’s
header/connection end.
Cleanable Fluid Coils
Heatcraft also offers cleanable fluid coils for applications where mechanical cleaning of
the internal surface of the tubes are required. Our cleanable coils utilize a box-style head
in lieu of cylindrical headers. The head contains baffles for circuiting and is removable
for easy access to coil tubes. Type “P” coils are cleanable from the supply end of the coil.
Type “Q” coils are cleanable from the end opposite the supply. Type “K” coils are
cleanable from both ends of the coil.
Q Removable Heads
(Opposite Connection End)
K Removable Heads
(Both Ends)
P Removable Head
(Connection End)