Installation manual

5
PREMIER INSTALLATION MANUAL
CAUTION: Do not use rods smaller than 3/8-inch diameter since they may not be strong enough to
support the unit. The rods must be securely anchored to the ceiling.
Installing Horizontal Units
Horizontal units are available with side or end discharge and may be fi eld converted from one to the other by replac-
ing the discharge panel with a new panel which must be ordered separately. Horizontal units are normally suspended from
a ceiling by four or six 3/8-inch diameter threaded rods. The rods are usually attached to the unit by hanger bracket kits
furnished with each unit.
Lay out the threaded rods per the dimensions in Figure 3. Assemble the hangers to the unit as shown. Securely tighten
the brackets to the unit using the weld nuts located on the underside of the bottom panel. When attaching the hanger rods to
the bracket, a double nut is required since vibration could loosen a single nut. To allow fi lter access, one bracket on the fi lter
side should be installed 180°
from the position shown in the
fi gure below. The unit should be
pitched approximately 1/4-inch
towards the drain in both direc-
tions to facilitate the removal of
condensate. Use only the bolts
provided in the kit. The use of
longer bolts could damage inter-
nal parts.
Some residential applications
require the installation of hori-
zontal units on an attic fl oor. In
this case, the unit should be set
in a full size secondary drain pan
on top of a vibration absorbing
mesh. The secondary drain pan
prevents possible condensate
overfl ow or water leakage dam-
age to the ceiling. The secondary
drain pan is usually placed on a
plywood base isolated from the
Figure 2: Typical Horizontal Unit Installation
Disconnects
Building Water
Loop
Flexible Duct
Collar
3/8”
Threaded rods (6)
Hanging
Brackets
(included)
P/T Plugs
Line Voltage
To Thermostat
Insulate
supply plenum
and use at least
a 90° elbow to
reduce noise
Ball V
alves
Hose Kits
To Line
Power
Electric heat
assembly
(optional)
MODEL A B C D E
P010, 013 24.8 42.5 22.5 44.0 –
P019 24.8 51.5 22.5 53.0 –
P022, 028, 034 24.8 61.5 22.5 63.0 –
P040, 046 27.8 70.5 25.5 72.0 29.9
P056 27.8 75.5 25.5 77.0 29.9
P066 27.8 80.5 25.5 82.0 29.9
Figure 3: Hanger Location and Assembly
C
B
D
E
Compressor
Section
Air Handler
Section
A
Vibration Isolator
Washer
Hex Nuts
(not supplied)
Bolt and
Lockwasher
3/8”
Threaded Rod
(not supplied)
P010-034, 4 hangers included
P040-066, 6 hangers included