Single package rooftop gas heat/electric cooling unit with puron (r-410a) refrigerant 3 to 5 nominal tons (108 pages)
Summary of Contents for Carrier 48SD
Page 1
_rn to the Expertg[ Owner's Information Manual A99338 Fig. 1 - Unit 48SD NOTE TO EQUIPMENT OWNER: For your convenience, please record the model and serial numbers of your new equipment in the spaces provided. This information, along with the installation data and dealer contact information, will be helpful should...
Page 2
SAFETY CONSIDERATIONS UNIT INTRODUCTION This 48SD unit is a small packaged gas heat/electric cooling system Installation and servicing of this equipment can be hazardous due to that can utilize the comfort of gas heating packaged along with effi- mechanical and electrical components.
Page 3
MAINTENANCE AND SERVICE This section discusses maintenance that should be performed your system. Most maintenance should be performed by your deal- er. You. as the owner, may wish to handle some minor maintenance for your new unit. Routine Maintenance All routine maintenance should be handled by skilled, experienced personnel.
Page 5
MAIN STEP 1 STEP 2 STEP 3 STEP4 STEP MAIN STEP 6 STEP 7 A01049 Fig. 5 - To Shut Off Unit To replace or inspect filters in accessory filter rack (See Fig. 6): 1. Remove the filter access panel using a 5/16-in. nut driver.
Page 6
Refrigerant Circuit The refrigerant circuit is difficult to check for leaks without the prop- er equipment. If inadequate cooling is suspected, contact your local dealer for service. EXPLOSION AND ENVIROMENTAL HAZARD Failure to follow this warning could result in personal injury, death or property damage.
Page 7
Warranty Certificate ) If your unit still fails to operate, call your servicing dealer for troubleshooting and repairs. Specify the model and serial numbers Your 48SD unit has a limited warranty. Be sure to read the warranty of your unit. (Record them in this manual in the space provided.) carefully...
Page 8
Model No., Series Letter, & Serial No. of your equipment to ensure correct replacement part. Copyright 2007 Carrier Corporation Printed in the US.A. Edition Date: 08/07 Catalol_ No: 0M48-33 Manufacturer reserves the right to change, at any tirne_ specifications...
Need help?
Do you have a question about the 48SD and is the answer not in the manual?
Questions and answers