Carrier 48KLA Installation, Start-Up And Service Instructions Manual

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
Page
SAFETY CONSIDERATIONS. 1
GENERAL.1,2
INSTALLATION.2-9
Step 1 - Rig and Place Unit. 2
• ROOFTOP INSTALLATION
• GROUND LEVEL INSTALLATION
• CLEARANCES
• CONDENSATE DISPOSAL
• VENTING
Step 2 - Make Gas Piping Connections . 5
Step 3 - Make Duct Connections. 6
Step 4 - Make Wiring Connections_ 7
• HIGH-VOLTAGE CONNECTIONS
• SPECIAL PROCEDURES FOR
208-V OPERATION
• LOW-VOLTAGE CONNECTIONS
• HEAT ANTICIPATOR SETTING
START-UP. 9-18
SERVICE.18-21
TROUBLESHOOTING CHARTS .22,23
SAFETY CONSIDERATIONS
NOTE: Installation of this unit must conform to the
guidelines presented in these Installation Instruc¬
tions. Read and become 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 48KH A,KLA packaged gas/ electric units
(Fig. 1) are design certified in accordance with
ANSI Z21.47-1983, ARI Standard 210-81 and ARI
Standard 270-84. The units are design certified by
the American Gas Association (AGA) for use with
natural or propane gases with appropriate controls
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