User Manual

FAN COIL UNIT
HBX
:
Installation, Operation, and Maintenance Instructions
4
FAN COIL UNIT
The installer must adhere strictly to all local and national code requirements
pertaining to the installation of this equipment. All units are designed for
indoor use only, and are agency listed for installation with zero clearance to
combustible materials. This includes the fan coil cabinet, discharge plenum
and connecting ducts. These units are designed for installation in either an
upflow or a horizontal left or right side down position.
HORIZONTAL
APPLICATION
The fan coil units are factory assembled for horizontal left side down
application without any modification required. To convert to horizontal right
side down, remove the horizontal drain pan and A-coil assembly, flip the
horizontal drain pan over to the right side re-install the horizontal drain pan
and A-coil into the cabinet. Secure the forward edge of the horizontal drain pan
with the leveler angle bracket. The unit should be leveled in such a way that
there is slope toward the condensate drain nipple to assure positive drainage.
CAUTION: It is highly recommended that an auxiliary drain pan be located beneath
the fan coil to prevent damage which may result from an overflow of the
condensate pan.
Free return installation (non-ducted return air): The closet area must be
completely sealed (except return air grille) to ensure that all return air is pulled
from the conditioned space and not from other areas of the building structure.
VERTICAL
APPLICATION
Fan coil may be set on a platform and secured by screws or nails. Sufficient
space for drain piping is required under the platform.
Sufficient clearance must be provided at the front of the fan coil to allow access
to electrical controls and removal of the motor/blower assembly for servicing.
This clearance distance should be approximately the same as the depth of the
fan coil unit.
NOTES: • A field-fabricated secondary drain pan, with a drain pipe routed to the
outside of the building, may be required in installations over a finished
living space or in any area that may be damaged by water overflow from
the main drain pan. In some localities local codes may require a secondary
drain pan for any horizontal installation.
• If a condensate overflow shut off switch, that is designed to be installed in
the drain line, is used in place of a secondary drain line then place it in the
primary drain line between the fan coil and the P-trap.
When required, the unit can be tilted toward the drain nipple to ensure proper
drainage.
MOUNTING
It is important to ensure fan coils are securely mounted and the structure is
sufficient to support the weight of the equipment. All anchors for mounting
equipment must be placed and sized to ensure a safe and durable installation.