Carrier 48KHA - Manual

H
Carrier Corporation • Syracuse. N Y 13221
Packaged Heating/Cooling Units
Note to Installer: After installation, leave these instructions, Owner’s Manual and Parts
Replacement Guide with equipment owner.
CONTENTS
SAFETY CONSIDERATIONS...........................
GENERAL .........................................................
INSTALLATION.................................................
Step 1 — Rig and Place Unit...........................
• ROOFTOP INSTALLATION
• GROUND LEVEL INSTALLATION
• CLEARANCES
• CONDENSATE DISPOSAL
• VENTING
Step 2 — Make Gas Piping Connections
Step 3 — Make Duct Connections..................
Step 4 — Make Wiring Connections ...
• HIGH-VOLTAGE CONNECTIONS
• SPECIAL PROCEDURES FOR
208-V OPERATION
• LOW-VOLTAGE CONNECTIONS
• HEAT ANTICIPATOR SETTING
START-UP.........................................................
SERVICE............................................................
TROUBLESHOOTING CHARTS ......................
SAFETY CONSIDERATIONS
Page
. 1
. 1,2
. 2-9
. 2
5
6
7
9-18
18-21
22,23
NOTE: Installation of this unit must conform to the
guidelines presented in these Installation Instruc­
tions. Read and beeome familiar with this publica­
tion before starting installation.
Only trained, qualified installers and service
mechanics should install, start-up and service this
equipment. Consult the Owner’s Manual for routine
maintenance. All other operations should be per­
formed by trained service personnel.
• Follow all safety codes.
• Wear safety glasses and work gloves.
Use care in handling, rigging and setting bulky
equipment.
Observe precautions in these instructions and on
equipment tags, stickers and labels.
Fig. 1 — Model 48KHA.KLA
GENERAL
Models 48KHA,KLA packaged gas/ electric units
(Fig. 1) are design certified in accordance with
ANSI Z21.47-1983, ARI Standard 210-81 and ARl
Standard 270-84. The units are design certified by
the American Gas Association (AGA) for use with
natural or propane gases with appropriate eontrols
and orifices. See Table 1 for heating input ratings.
Models 48KHA,KLA units are fully self-contained,
combination gas-heating/electric-cooling units
designed for outdoor installation on either a rooftop
or ground-level slab.
These units are equipped with an energy-saving
automatic, intermittent, electric spark ignition
system that does not have a continuously burning
pilot. All units are manufactured with natural gas
controls.
© Carrier Corporation 1984 Form 48KH,KL-9SI