Carrier 52M Performance Series- Troubleshooting Guide

Table of Contents:

• Page 2 – INTRODUCTION; FIGURE 1 — REMOVING FRONT PANEL; SERIES
• Page 4 – GENERAL DISASSEMBLY; Unplug the unit service cord.; Remove screw from access cover and remove ac-; TO OPEN THE CONTROL BOX; Grasp the sides of the unit and slide it from the sleeve.; FIGURE 4 — DISCONNECTING PLUG
• Page 5 – FIGURE 7 — DUCT EXTENSION SCREWS
• Page 7 – — Remove the screw; FIGURE 14 — REMOVING AIR DISCHARGE GRILLE
• Page 8 – — Using a flat head screw; FIGURE 17 — DISCHARGE DECK REMOVAL; FIGURE 18 — GUSSET REMOVAL; FIGURE 19 — REMOVING CONDENSER ORIFICE
• Page 9 – TO REMOVE THE STATOR; — After pulling the top; FIGURE 20 — REMOVING STATOR
• Page 10 – GENERAL CLEANING; COMPONENT CLEANING SCHEDULE; CLEANING AND SAFETY; • Personal protective equipment, such as safety glasses; FIGURE 21 — FRONT PANEL, CHASSIS, AND SLEEVE
• Page 11 – AIR FILTERS; — The indoor and vent air filters should; CLEANING THE INDOOR AIR FILTER; — Remove; REPLACING THE INDOOR AIR FILTER; — Access; FIGURE 22 — REMOVING FILTER
• Page 12 – FIGURE 23 — ACCESSING VENT AIR FILTER
• Page 13 – SEASONAL CLEANING; ACCESSING THE INDOOR AND OUTDOOR; — The minimum cleaning recommendation for; DISCONNECT ALL POWER TO UNIT!; Remove each side angle from unit with a; FIGURE 27 — FAN SECTION SCREW LOCATIONS
• Page 14 – CLEANING THE INDOOR AND OUTDOOR COILS; Repeat steps 2 and 3.; ACCESSING THE INDOOR FAN AND INDOOR; — Dried debris and build-up on the; FIGURE 28 — CLEANING THE COILS
• Page 15 – — Once the indoor fan wheel and the indoor; ACCESSING THE HEATER ASSEMBLY; — To access; DISCONNECT ALL POWER TO THE UNIT.; — Once the; FIGURE 30 — CLEANING INDOOR FAN
• Page 16 – COMPRESSOR; FIGURE 32 — ROTARY COMPRESSOR COMPONENTS
• Page 17 – COMPRESSOR TROUBLESHOOTING; FIGURE 33 — ROTARY COMPRESSOR
• Page 18 – FIGURE 34 — BASIC COMPRESSOR TROUBLESHOOTING GUIDE
• Page 19 – COMPRESSOR REPLACEMENT; TOOLS NEEDED; FIGURE 35 — SHORTED/OPEN WINDINGS TEST
• Page 20 – REMOVING THE COMPRESSOR; — Follow the steps; Disconnect all power to unit.; FIGURE 37 — STRAINER AND LIQUID TUBE; FIGURE 38 — TUBE INSERTED STRAINER
• Page 21 – Reassemble the unit by reversing steps 1 - 9.; REFRIGERANT CHARGING; — Every mechanical; FIGURE 39 — INSTALLED FILTER DRIER
• Page 22 – HEATERS; HEATER REMOVAL; • New and unfamiliar tasks should be performed; — The following list includes rec-; DISCONNECT ALL POWER TO UNIT.; FIGURE 41 — LIMIT SWITCH LOCATION
• Page 23 – Remove the two; FIGURE 42 — REMOVING HEATER SCREWS; FIGURE 44 — ACCEPTABLE HEATER
• Page 24 – OPERATING CONTROLS; FIGURE 45 — TYPICAL 52S UNIT
• Page 25 – FIGURE 48 — SAMPLE CONTROL PANELS; FIGURE 49 — CONTROLS LOCATION
• Page 26 – SEQUENCE OF OPERATION; — With the selector switch set to high; Fan Mode
• Page 27 – INDOOR THERMOSTAT (Heat/Cool and Cool Only; CONTACTS, ALL 52SE AA AND CP MODELS
• Page 28 – OUTDOOR FROST THERMOSTAT (Heat Pump Units); Once the test is complete, reconnect the leads.; CONTACTS, ALL 52SQ AA AND CP MODELS
• Page 29 – CAPACITOR; — The 52S units use a dual capacitor.; FAN CYCLE SWITCH; — The fan cycle switch has; FIGURE 56 — CAPACITOR TEST
• Page 30 – INDOOR THERMOSTAT; — To remove the indoor; form the following steps:; FIGURE 58 — ESCUTCHEON REMOVAL
• Page 31 – Open the control box door and remove capacitor.; — The fan cycle switch is lo-; SELECTOR SWITCH; — To remove the selector switch; FIGURE 61 — COMPONENT LOCATIONS
• Page 32 – FAN MOTOR; FAN MOTOR TROUBLESHOOTING; BASIC FAN MOTOR ELECTRICAL TESTS
• Page 34 – FAN MOTOR REPLACEMENT; Remove; FIGURE 65 — SPRING CLIP
• Page 35 – See; FIGURE 67 — 52S 7,000 BTU UNIT FIELD TEMPERATURE CHART — LOW COOL — 50% RH
• Page 36 – FIGURE 68 — 52S 7,000 BTU UNIT FIELD TEMPERATURE CHART — HIGH COOL — 50% RH
• Page 39 – FIGURE 71 — 52S 9,000 BTU UNIT FIELD TEMPERATURE CHART — LOW COOL — 50% RH
• Page 40 – FIGURE 72 — 52S 9,000 BTU UNIT FIELD TEMPERATURE CHART — HIGH COOL — 50% RH
• Page 43 – FIGURE 75 — 52S 12,000 BTU UNIT FIELD TEMPERATURE CHART — LOW COOL — 50% RH
• Page 47 – FIGURE 79 — 52S 14,000 BTU UNIT FIELD TEMPERATURE CHART — LOW COOL — 50% RH
• Page 51 – WIRING SCHEMATICS; Refer to Figures 83 - 87 for typical 52S unit wiring schematics.
• Page 56 – MOST FREQUENT PTAC SERVICE QUESTIONS