Page 3
Shipping and Packing List
Package 1 of 1 contains:
1− Assembled unit
IMPORTANT − This unit requires a specific
field−provided
and
installed
humidity
sensor
(17M50).
Check unit for shipping damage. Consult last carrier
immediately if damage is found.
General
These instructions are intended as a general guide and
do not supersede national or local codes in any way.
Authorities having jurisdiction should be consulted before
installation.
In addition to standard heating and cooling, Humiditrol
t
units provide a dehumidifying mode of operation. Refer to
Reheat Operation section.
See figure 1 for unit dimensions, figure 2 for parts
arrangement and figure 3 for service clearances.
EVAP.
COND.
FAN
BLOWER
HEAT
SEC
TION
COMP.
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LGA/LCA036−072 SERVICE CLEARANCES
36"
36"
36"
FIGURE 3
36"
IMPORTANT
The Clean Air Act of 1990 bans the intentional vent
ing of refrigerant (CFC’s and HCFC’s) as of July 1,
1992. Approved methods of recovery, recycling or
reclaiming must be followed. Fines and/or incar
ceration may be levied for non−compliance.
CAUTION
Danger of sharp metallic edges. Can cause injury.
Take care when servicing unit to avoid accidental
contact with sharp edges.
WARNING
Electric shock hazard and danger of
explosion. Can cause injury, death or
product or property damage. Turn off
gas and electrical power to unit before
performing
any
maintenance
or
servicing operations on the unit.
Follow lighting instructions attached
to unit when putting unit back into
operation
and
after
service
or
maintenance.
Unit Support
A−Roof Mounting with LARMF − Downflow Discharge
Application
1− The LARMF roof mounting frame must be installed,
flashed
and
sealed
in
accordance
with
the
instructions provided with the frame.
2− The LARMF roof mounting frame should be square
and level to 1/16" per linear foot (5mm per linear
meter) in any direction.
3− Duct must be attached to the roof mounting frame
and not to the unit: Supply and return plenums must
be installed before setting the unit.
B−Roof Mounting With Installer’s Frame − Downflow
Applications
Many types of roof frames can be used to mount the unit,
depending upon different roof structures. Items to keep in
mind when using the building frame or supports are:
1− The base is fully enclosed and insulated, so an
enclosed frame is not required.
2− The frames or supports must be constructed with
non−combustible materials and should be square and
level to 1/16" per linear foot (5mm per linear meter) in
any direction.
3− Frame or supports must be high enough to prevent
any
form
of
moisture
from
entering
unit.
Recommended frame height is 14" (356mm).
4− Duct must be attached to the roof mounting frame
and not to the unit: Supply and return plenums must
be installed before setting the unit.
