Table of Contents
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INSTALLATION, OPERATING
AND MAINTENANCE INSTRUCTIONS
PACKAGED TERMINAL AIR CONDITIONERS
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
UNIT INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,3
ELECTRICAL DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,4
ALL UNITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
VOLTAGE SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
MANAGEMENT ACCESSORY . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11
SLEEVE INSTALLATION REQUIREMENTS . . . . . . . 5
ACCESSORY INSTALLATION . . . . . . . . . . . . . . . . . . . 9
ADJUSTMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
52S
52S
SERIES
SERIES
AND HEAT PUMPS
7,000-14,000 Btuh
Page
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . 12-13
SWITCH SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
OPERATING CONTROLS . . . . . . . . . . . . . . . . . . . . . . 13
CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . 13-17
AIR INLET FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
OUTDOOR VENT FILTER . . . . . . . . . . . . . . . . . . . . . . 14
EXTERNAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
INTERNAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1•800•894•6449
For Service/
Technical Assistance
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Table of Contents
Related Manuals for Carrier 52SQ
Summarization of Contents
GENERAL
Unit Inspection
Inspect unit for shipping damage and examine data plate for information.
ELECTRICAL DATA
Wire Size and Grounding
Wire size recommendations, single branch circuits, and proper grounding for safety.
VOLTAGE SUPPLY
Receptacle and Fuse Types
Details on receptacle and fuse types for 208/230-v and 265-v units.
Low-Voltage Connections
Instructions for low-voltage connections for remote control and EM accessories.
INSTALLATION
Sleeve Installation Requirements
Requirements for wall sleeve installation, including leveling and caulking.
Unit Dimension Drawings
Clearances and Mounting Locations
Dimension drawings showing clearances and mounting locations for wall sleeves.
Prepare Sleeve for Chassis Installation
Outdoor Grille Installation
Instructions for installing the outdoor grille, with a caution about using Carrier grilles.
Install Chassis in Sleeve
Chassis Inspection and Fit
Inspect chassis foam gaskets and ensure proper fit into the wall sleeve.
ACCESSORY INSTALLATION
Hardwire, Cord-Connect, and Thermostat Kits
Installation of hardwire kits, cord-connect kits, and thermostats.
Energy Management Accessory Kit
EM Kit Wiring Schematic
Schematic diagram for the EM accessory kit wiring and connections.
ADJUSTMENTS
Airflow, Vent, and Temperature Limiter
Adjusting airflow, vent, and the Econo Zone II temperature limiter.
OPERATING INSTRUCTIONS
Unit Controls and Settings
Explanation of unit controls, switches, and temperature settings.
OPERATING CONTROLS
Fan Cycle and Outdoor Thermostat
Details on fan cycle switch and outdoor thermostat for heat pumps.
CARE AND MAINTENANCE
Filter Cleaning
Instructions for cleaning air inlet and outdoor vent filters.
External Parts Maintenance
Recommendations for cleaning the unit's external parts.
DISASSEMBLE UNIT
Tools and Disassembly Steps
List of tools and initial steps for unit disassembly.
Panel and Grille Removal
Steps to remove various panels and grilles from the unit.
Cleaning Disassembled Components
Coil, Screen, and Basepan Cleaning
Instructions for cleaning coils, vent screen, and basepan.
Indoor Fan and Scroll Cleaning
Blower Wheel and Reassembly
Cleaning blower wheel and scroll, followed by unit reassembly.
ACCESSORIES
Accessory Product Overview
Lists and briefly describes various available accessories for the unit.
Carrier Air Conditioner Warranty
Warranty Coverage and Limitations
Details on warranty coverage, limitations, and specific exclusions.
Troubleshooting and Service
Initial Troubleshooting Steps
Steps for owners to troubleshoot issues before calling for service.
Contacting Support
Guidance on contacting dealers, distributors, or Carrier for assistance.
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