Carrier P - Manual

Carrier P

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Table of Contents:

  • Page 2 – SERIES; INTRODUCTION; FIGURE 1 — SAMPLE DATA INFORMATION
  • Page 3 – UNIT DISASSEMBLY; TOOLS NEEDED; FIGURE 2 — MODEL NUMBER NOMENCLATURE
  • Page 4 – OPEN THE CONTROL BOX; Remove the four mounting screws that secure the; FIGURE 5 — PLUG ASSEMBLY ON; PECIFIED ON THE PRODUCT.
  • Page 5 – ACCESSING UNIT COMPONENTS; Panel section and Figure 4.
  • Page 6 – Remove Front Panel
  • Page 8 – REINSTALL FRONT PANEL; Grasp the front panel firmly at the center of the
  • Page 9 – GENERAL CLEANING; COMPONENT CLEANING SCHEDULE; CLEANING AND SAFETY; • Personal protective equipment, such as safety; FIGURE 20 — STANDARD 52C UNIT
  • Page 10 – AIR FILTERS; CHASSIS
  • Page 11 – SEASONAL CLEANING; FAN SCROLL
  • Page 12 – FIGURE 24 — VACUUMING EVAPORATOR
  • Page 13 – COMPRESSOR; FIGURE 27 — ROTARY COMPRESSOR COMPONENTS
  • Page 14 – COMPRESSOR TROUBLESHOOTING; detailed in the UNIT DISASSEMBLY section.; Perform a shorted/open windings test to measure; FIGURE 28 — ROTARY COMPRESSOR
  • Page 15 – FIGURE 29 — BASIC COMPRESSOR TROUBLESHOOTING GUIDE; COMPRESSOR REPLACEMENT
  • Page 18 – HEATERS; HEATER REMOVAL; • New and unfamiliar tasks should be performed; FIGURE 34 — LIMIT SWITCH LOCATION
  • Page 19 – — The following list includes rec-; ACCESSING UNIT COMPONENTS section.
  • Page 20 – OPERATING CONTROLS; UNIT-MOUNTED CONTROLS; FIGURE 37 — 52C,P OPERATING CONTROLS
  • Page 22 – FIGURE 43 — TYPICAL WIRING FOR MULTIPLE 52C PTAC UNITS CONNECTED
  • Page 23 – — The OFF position terminates unit; NON-USER ADJUSTABLE CONTROLS; TYPICAL 52C UNIT CONTROLS
  • Page 24 – SEQUENCE OF OPERATION; Fan Mode —
  • Page 26 – DISASSEMBLY section.
  • Page 28 – CAPACITOR; FIGURE 54 — COMPONENT LOCATIONS
  • Page 29 – FAN MOTOR; FAN MOTOR TROUBLESHOOTING; BASIC FAN MOTOR ELECTRICAL TESTS
  • Page 30 – FIGURE 56 — FAN MOTOR TROUBLESHOOTING CHART
  • Page 31 – FAN MOTOR REPLACEMENT; FIGURE 58 — LOCATION OF WIRING SCHEMATIC
  • Page 32 – Outdoor; FIELD TEMPERATURE CHARTS; Refer to Figures 59-67 for field temperature data.; BTU
  • Page 38 – Indoor Entering
  • Page 39 – Indoor Air T
  • Page 41 – WIRING DIAGRAMS; Refer to Figures 68-72 for Typical Wiring Schematics.; FIGURE 68 — 52CQ & 52PQ — TYPICAL WIRING SCHEMATIC FOR
  • Page 42 – FIGURE 69 — 52CQ AND 52 PQ — TYPICAL WIRING SCHEMATIC FOR
  • Page 44 – FIGURE 71 — 52CE AND 52PE — TYPICAL WIRING SCHEMATIC FOR
  • Page 46 – MOST FREQUENT PTAC SERVICE QUESTIONS
  • Page 47 – ACCESSORIES
  • Page 48 – 2C PERFORMANCE AND PHYSICAL DATA
  • Page 49 – 2P PERFORMANCE AND PHYSICAL DATA
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52C,P

SERIES

PTAC Customer Suppor t Center

1•800•894•6449

SERVICE TECHNICIAN GUIDE

PACKAGED TERMINAL AIR CONDITIONERS

AND HEAT PUMPS

CONTENTS

Page

INTRODUCTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,3

SUMMARY OF DANGERS, WARNINGS,

AND CAUTIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

UNIT DISASSEMBLY

. . . . . . . . . . . . . . . . . . . . . . . . . . . 3,4

TOOLS NEEDED

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

REMOVE FRONT PANEL

. . . . . . . . . . . . . . . . . . . . . . . 3

DISCONNECT POWER FOR

CORD-CONNECTED UNIT

. . . . . . . . . . . . . . . . . . . . . 3

DISCONNECT POWER FOR PERMANENTLY

CONNECTED (HARDWIRED) UNITS

. . . . . . . . . . . . 3

OPEN THE CONTROL BOX

. . . . . . . . . . . . . . . . . . . . . 4

REMOVE THE UNIT FROM THE WALL SLEEVE

. . 4

ACCESSING UNIT COMPONENTS

. . . . . . . . . . . . . .5-8

ACCESSING INDOOR-AIR SECTION

COMPONENTS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

ACCESSING OUTDOOR-AIR SECTION

COMPONENTS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

REINSTALL FRONT PANEL

. . . . . . . . . . . . . . . . . . . . . 8

GENERAL CLEANING

. . . . . . . . . . . . . . . . . . . . . . . . .9-12

CLEANING AND SAFETY

. . . . . . . . . . . . . . . . . . . . . . 9

TOOLS NEEDED

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

MONTHLY CLEANING

. . . . . . . . . . . . . . . . . . . . . . . . 10

SEASONAL CLEANING

. . . . . . . . . . . . . . . . . . . . . . . 11

COMPRESSOR

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-17

COMPRESSOR TROUBLESHOOTING

. . . . . . . . . . . 14

BASIC HERMETIC COMPRESSOR

ELECTRICAL MEASUREMENTS

. . . . . . . . . . . . . . . 14

COMPRESSOR REPLACEMENT

. . . . . . . . . . . . . . . . 15

Page

HEATERS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18,19

COMMON CAUSES OF HEATER FAILURE

. . . . . . . 18

HEATER REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . 18

OPERATING CONTROLS

. . . . . . . . . . . . . . . . . . . . . 20-28

UNIT-MOUNTED CONTROLS

. . . . . . . . . . . . . . . . . . 20

WALL-MOUNTED THERMOSTAT CONTROLS

. . . 21

REMOTE THERMOSTAT

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . . . . 21

DESCRIPTION OF SELECTOR

SWITCH SETTINGS

. . . . . . . . . . . . . . . . . . . . . . . . . . . 23

NON-USER ADJUSTABLE CONTROLS

. . . . . . . . . . 23

SEQUENCE OF OPERATION

. . . . . . . . . . . . . . . . . . . 24

COMPONENT OPERATION AND

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . . . . 24

ELECTRICAL COMPONENTS REMOVAL

AND REPLACEMENT

. . . . . . . . . . . . . . . . . . . . . . . . . 27

FAN MOTOR

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-31

FAN MOTOR TROUBLESHOOTING

. . . . . . . . . . . . . 29

BASIC FAN MOTOR ELECTRICAL TESTS

. . . . . . . . 29

FAN MOTOR REPLACEMENT

. . . . . . . . . . . . . . . . . . 31

FIELD TEMPERATURE CHARTS

. . . . . . . . . . . . . . 32-40

WIRING DIAGRAMS

. . . . . . . . . . . . . . . . . . . . . . . . 41-45

MOST FREQUENT PTAC SERVICE
QUESTIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

ACCESSORIES

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

52C PERFORMANCE AND PHYSICAL DATA

. . . . . . 48

52P PERFORMANCE AND PHYSICAL DATA

. . . . . . 49

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Summary

Page 2 - SERIES; INTRODUCTION; FIGURE 1 — SAMPLE DATA INFORMATION

52C,P SERIES 2 INTRODUCTION The focus of this manual is to provide basic information on service procedures, safety, troubleshooting, clean-ing, and component replacement for service techni-cians. It is intended for use only by HVAC service technicians who have successfully completed instruction and ...

Page 3 - UNIT DISASSEMBLY; TOOLS NEEDED; FIGURE 2 — MODEL NUMBER NOMENCLATURE

3 UNIT DISASSEMBLY This section includes common procedures for disas-sembly and re-assembly of unit. TOOLS NEEDED The following field-supplied items are recommended for general disassembly of the unit:• Flat head screw driver• 5 / 16 -in. nut driver • Safety glasses• Needle nose pliers REMOVE FRONT ...

Page 4 - OPEN THE CONTROL BOX; Remove the four mounting screws that secure the; FIGURE 5 — PLUG ASSEMBLY ON; PECIFIED ON THE PRODUCT.

52C,P SERIES 4 OPEN THE CONTROL BOX The control box is factory wired. To open the box, remove the 2 screws on the top of the control box and lower the front hinged panel. See Figure 6. REMOVE THE UNIT FROM THE WALL SLEEVE 1. Remove the four mounting screws that secure the PTAC unit to the wall sleev...

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