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Carrier INFINITY 48XL-A Installation Instructions

Carrier INFINITY 48XL-A
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1
48
X
L --- A
Infinity
®
15 SEER Sing le---Package d Air Co ndit ione r and
Gas F ur nace System with Puro n
®
(R---410A) Refrig er ant
Single Phase
2 --- 5 N o m i n a l To n s ( S i z e s 2 4 --- 6 0 )
Installation Instructions
EQUIPMENT OPERATION HAZARD
Failure to follow this caution may result in improper unit
operation.
OAT sensor must be field installed. See Accessory
Installation for more details.
CAUTION
!
EQUIPMENT OPERATION HAZARD
Failure to follow this caution may result in improper unit
operation.
This InfinityR unit is designed for use with an Infinity User
Interface.
CAUTION
!
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 2.........................
INTRODUCTION 2...................................
RECEIVING AND INSTALLATION 2--12.................
Check Equipment 2..................................
Identify Unit 2....................................
Inspect Shipment 2.................................
Provide Unit Support 2...............................
Roof Curb 2......................................
Slab Mount 3.....................................
Provide Clearances 3.................................
Rig and Place Unit 3.................................
Inspection 3......................................
Rigging/Lifting of Unit 9............................
Select and Install Ductwork 9...........................
Configuring Units for Downflow (Vertical) Discharge 10...
Provide for Condensate Disposal 10.....................
Install Flue Hood 11..................................
Install Gas Piping 11.................................
Install Electrical Connections 12........................
High--Voltage Connections 12........................
Routing Power Leads Into Unit 13.....................
Connecting Ground Lead to Ground Screw 13...........
Routing Control Power Wires 13.....................
Accessory Installation 13............................
Special Procedures for 208--v Operation 13..............
PRE-- START--UP 16...................................
START--UP 16--29.....................................
Unit Start --Up and Troubleshooting 16...................
Sequence of Operation 23.............................
Check for Refrigerant Leaks 28.........................
Start--Up Adjustments 28..............................
A09032
Fig. 1 -- Unit 48XL--A
Checking Cooling and Heating Control Operation 28......
Checking and Adjusting Refrigerant Charge 28...........
Refrigerant Charge 29..............................
No Charge 29.....................................
Low Charge Cooling 29.............................
To Use Cooling Charging Charts 29....................
Non--Communicating Emergency Cooling/Heating Mode 29..
MAINTENANCE 31--34................................
Air Filter 31........................................
Indoor Fan and Motor 31..............................
Inducer Blower 31...................................
Limit Switch 31.....................................
Burner Ignition 31...................................
Main Burners 31....................................
Inducer Pressure Switch 32............................
Outdoor Coil, Indoor Coil, and Condensate Drain Pan 32.....
Outdoor Fan 32.....................................
Electrical Controls and Wiring 32.......................
Refrigerant Circuit 33.................................
Indoor Airflow 33...................................
Pressure Switches 33.................................
L o s s -- o f -- C h a r g e S w i t c h 3 3............................
High--Pressure Switches 33............................
Copeland Scroll Compressor (Puron
®
Refrigerant) 33........
Refrigerant System 33................................
Refrigerant 33....................................
Compressor Oil 33.................................
Servicing Systems on Roofs with Synthetic Materials 33....
Liquid--Line Filter Drier 34..........................
Puron (R--410A) Refrigerant Charging 34...............
TROUBLESHOOTING 34..............................
FINAL CHECKS 35...................................
CARE AND MAINTENANCE 35........................
START -- UP CHECKLIST 40............................

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Carrier INFINITY 48XL-A Specifications

General IconGeneral
Model48XL-A
ENERGY STAR® certifiedYes
SmartSense™ TechnologyYes
Phase1
TypeAir Conditioner
Energy Efficiency Ratio (EER)Up to 13 EER
Voltage208/230V
Warranty10-Year Limited Warranty on Compressor, 10-Year Limited Parts Warranty when registered

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