Carrier 48KHA - Manual (Page 2)

Table 1—Performance Data
MODEL 48-
COOLING
CAPACITY
(Btuh)*
RATED
HEATING
INPUT
(Btuh)
OUTPUT
CAPACITY
(Btuh)
ARI*
SOUND
RATING
(Bels)
KLA118310BE 17,800 40,000 32,000 7.8
KLA124310BE 23,800 40,000 32,000 7.8
KHA024310BF 24,000 75,000 58,000 8.0
KLA130310BE 29,600 40,000 32,000 7.8
KHA030310BF 29,600 75,000 58,000 7.8
KLA136310BE 36,000 60,000 47,000 8.0
KLA136510CE 36,000 60,000 45,000 8.0
KLA136610CE 36,000 60,000 45,000 8.0
KHA136310BE 36,000 100,000 79,000 8.0
KHA136S10CE 36,000 100,000 75,000 8.0
KHA036310BF 36,000 125,000 97,000 8.0
KHA036510CF 36,000 125,000 93,750 8.0
KLA142310BE 42,000 60,000 47,000 78
KLA142510CE 42,000 60,000 45,000 7.8
KHA042310BF 42,000 125,000 97,000 7.8
KHA042510CF 42,000 125,000 93,750 7.8
KLA148310BE 49,000 80,000 63,000 8.4*
KLA148510CE 49,000 80,000 60,000 8.4*
KLA148610CE 49,000 80,000 60,000 8.4*
KHA048310BE 49,000 125,000 97,000 8.4*
KHA048510CF 49,000 125,000 93,750 8.4*
KLA160310BE 60,000 100,000* 79,000* 8.4*
KHA060310BF 60,000 150,000* 116,000* 8.4*
♦Rated in accordance with U S. Government D.O.E. test procedures and/
or ARI Standard 210-81.
tSound rating per ARi 270-84.
tThe capacity ratings of singie-phase units are in accordance with U.S.
Government D.O.E. test procedures and/or AGA certification require­
ments. For 3-phase units, the efficiency rating is a product thermai effi­
ciency rating determined under continuous operating conditions, inde­
pendent of any installed system.
All units can be connected into existing duct systems that
are properly sized and designed to handle an airflow of 350
to 450 cfm per each 12,000 Btuh of rated cooling capacity.
See Table 8 for cooling euid heating airflow requirements.
NOTE: When insteJling any accessory item, see Installation
Instructions packaged with accessory.
IMPORTANT-
READ BEFORE INSTALLING
1. This instEdlation must conform with all applicable
local and nationed codes.
2. Power supply (volts, hertz and phase) must corre­
spond to that specified on unit rating plate.
3. Electrical supply provided by utility must be suffi­
cient to handle load imposed by unit.
4. Refer to Fig. 4 for locations of gas inlet, electrical
inlets, condensate drain, duct connections, and
required clearances before setting unit in place.
5. Locate unit where vent cap will be a minimum of 4 ft
from openable windows or doors.
6. Installation must conform with local building codes
and with National Fuel Gas Code, NFPA 54-1984/
ANSI Z223.1-1984.
IMPORTANT: On some models, the high-voltage igni­
tion cable is not connected to the spark generator termi­
nal on the control head/gas valve assembly when shipped
from the factory. The cable is fastened to the manifold on
these models. Push the boot toward center of the cable to
expose the connector on the end of the cable. Attach the
connector securely to the terminal on the end of the con­
trol head/gas vedve assembly. Push the boot over connec­
tor to insulate the high-voltage connection.
SPREADER OARS'
^
(2)2x4xUNIT LENGTH PLUS 10"WITH
11 DEEP 90° NOTCHES EACH END
(2) 2x4xUNIT WIDTH WITH l^
DEEP 90° NOTCHES
EACH END
SPREADER BARS
LOCATE CHAINS THROUGH
HOLES IN BASE
CHANNELS
CHAIN
TWO OR THREE BASE
CHANNELS ATTACHED TO
BOTTOM OF UNIT
Fig. 2—48KHA,KLA Suggested Rigging
INSTALLATiON
Step 1—Rig and Place Unit
A CAUTION
When rigging unit to be hfted, use spreader bars to pro­
tect top and sides. Rig unit as shown in Fig. 2. Use
extreme caution to prevent damage when moving unit.
Unit must remain in upright position during all rigging
and moving operations. Unit must be level for proper
condensate drainage; therefore, the ground-level pad or
accessory roof-mounting curb must be level before set­
ting unit in place. When a field-fabricated support is
used, ensure that support is level and properly supports
unit and plenum.
ROOFTOP INSTALLATION
A CAUTION
When installing a unit on a rooftop, be sure roof will
support the additioneil weight. Refer to Fig. 4 to obtain
total weight and corner weight information.
When installing a Model 48KHA,KLA end discharge unit
with a field-supplied downflow plenum, a field-supplied roof­
mounting curb must be installed on emd flashed into roof
before
unit installation. When installing a Model
48KHA,KLA end discharge unit without a downflow ple­
num, place unit on a level base that provides proper sup­
port. On flat roofs be sure unit is located at least 4 in. above
highest expected water level on roof to prevent flooding.
Consult local codes for additional installation requirements.
GROUND LEVEL INSTALLATION-Place unit on a
solid, level concrete pad that is a minimum of 4 in. thick and
that extends approximately 2 in. beyond casing on all sides
of unit. Do not secure unit to pad except when required by
local codes.
CLEARANCES—Required minimum operating and service
clearances are shown in Fig. 4 for providing adequate com­
bustion, ventilation emd condenser edr.