Magic Aire DHB Series, Installation, Operation And Maintenance Manual

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010-200021-000 Page 12 DHB IOM 1.5 11-02-2023
DHB SERIES
Magic Aire Fan Coil Unit – Sizes 04 through 10
Hot Water Coil Accessory – Installation Procedure:
1. Orient hot water coil accessory module so
that connections are on the desired side.
2. If desired: Route upper air vent tube
through available hole next to the upper
coil connection. One tube is shorter and
so may require the installer to may extend
the air vent using field-supplied and in-
stalled tubing. Bend air vent tubing gen-
tly. Air removal for the hot water system
must be provided in the system by the
customer regardless of the use of the
vents at the DH hot water coil accessory.
3. Remove the front face side screws from
the DH unit as indicated on Fig 10.
4. Slide accessory over the discharge end of
the DH unit and make sure that the DH
unit is in contact with the “shelf” in the ac-
cessory cabinet as shown on Fig 11. The
two long flanges will slip over the outside
of the DH unit.
5. Use self-drilling screws (#8 x ½” long)
through the clearance holes on the acces-
sory long flanges and into the DH cabi-
net. Install a screw in each hole.
6. Seal the joint with HVAC seal tape.
7. Install field hot water piping to the hot wa-
ter coil connections.
8. Make sure to support the DHB unit as indi-
cated in the installation manual, and use
an additional cross support for the acces-
sory hot water coil. Alternately, support
the accessory hot water coil on long sup-
ports (in the direction of airflow) that are
also used for the DHB unit.
9. Place unit into service.
Fig 10
Remove indicated screws
from front face sides