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52C
52C
SERIES
SERIES
OWNER’S MANUAL
PACKAGED TERMINAL AIR CONDITIONERS
AND HEAT PUMPS
7,000-15,000 Btuh
CONTENTS
Page Page
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . 10,11
INDOOR-AIR INLET FILTERS . . . . . . . . . . . . . . . . . . 10
UNIT INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2,3
EXTERNAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
FRONT PANEL .
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52C SERIES GENERAL UNIT INSPECTION Thank you for choosing Carrier! You can feel confident Examine unit for damage incurred during shipment. in your selection because the same pride in craftsman- File a claim immediately with the transit company if ship and engineering knowledge that goes into Carrier damage is found. equipment at the Astrodome in Texas, the Sistine The data information plate (Figure 1) lists the model Chapel in Rome, the US Capitol Hall of Congress, and number, voltage rang
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52 CE A 3 12 3 0 1 AA Series Designation Chassis Options PTAC (Packaged Terminal Air Conditioner) AA – Standard CP – Corrosion Protection RC – Wall Thermostat Control CE – Cooling with Electric Heat RP – Wall Thermostat Control with CQ – Heat Pump Corrosion Protection Latest Revision A – Z Packaging 1 – Domestic Electric Heater Size 2 – 2.3 kW Non-Performance 3 – 3.4 kW Changes 0-9 5 – 5.0 kW Cooling Capacity (nominal) Electrical Data 07 – 7,000 Btuh 3 – 230/208-v, 60
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52C SERIES GROUNDING — For safety and protection, the unit ELECTRICAL DATA is grounded through the service cord plug or through separate ground wire provided on hardwired units. Be sure that the branch circuit or general purpose outlet is grounded. ELECTRICAL SHOCK HAZARD TABLE 1 — SUGGESTED BRANCH CIRCUIT DO NOT alter cord or plug, and DO NOT use an WIRE SIZES* extension cord. Personal injury or damage to the unit may result. NAMEPLATE AMPS AWG WIRE SIZE† 7.0 to 12 14 Be sure that your
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INSTALLATION CHASSIS INSTALLATION FOAM STRIP FOAM STRIP OR BAFFLE OR BAFFLE Units are shipped without a sleeve. In applications where unit is a replacement, it is recommended that a Carrier sleeve be used. The 52C unit can retrofit General Electric, Amana and Trane sleeves/grilles (be sure outdoor grille is installed on the sleeve). A retrofit kit with instructions is included with every unit. See Table 3 for details. Carrier Corporation must approve any other retrofit application. In deep
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52C SERIES INSTALL CHASSIS IN SLEEVE (See Figures 6 to 9) SIDE TOP 1. Inspect foam gaskets (top, bottom, both sides) on GASKET GASKET chassis. Replace foam gaskets if torn or missing. IMPORTANT: The gaskets combine with the sleeve face to create a weather barrier. If the chassis is installed in a non-Carrier sleeve, this weather bar- rier may not be effective. Chassis weighs up to 150 lbs. For personal protec- tion, seek help when lifting the unit. Lift unit by holding unit basepan. 2. Re
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WALL THERMOSTAT INSTALLATION The following instructions apply to RC and RP units 4. Reinstall cover. only. 5. Set desired fan speed using fan switch (unit will NOTE: Carrier thermostats are recommended. See operate only at selected speed). Accessories section. 6. Restore power to unit. NOTE: Refer to thermostat installation instructions IMPORTANT: Only trained, qualified personnel for details on installing thermostat. and service mechanics should install electrical accessories on Carrier 52C
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52C SERIES OPERATION COMFORT CONTROLS ADJUST AIRFLOW DIRECTION — The discharge 75 80 air grille is mounted on the front panel so that the air 70 discharges forward. If upward discharge is required, 85 65 60 remove the grille by removing screws on back of front 90 panel. Rotate grille 180 degrees and reinstall on the front panel. TEMPERATURE CONTROL ADJUST VENT — The vent handle is on the left STANDOFF side of the unit. Turn handle to open or close vent. PINS CON Vent will remain in l
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(approximately 45° F outdoor air temperature); then OPERATING CONTROLS the electric heater is shut off and the compressor is The following controls are located on the front of the energized. chassis. To obtain access to operating controls, remove the unit front panel as shown on page 2. See Figure 14. IMPORTANT: Once in electric heat mode, the com- pressor is disabled for heating and cooling. IMPORTANT: When unit is first started, high humidity conditions can cause condensation to form To
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52C SERIES CARE AND MAINTENANCE In order to maintain proper performance of your pack- aged terminal air conditioner or heat pump, it is very important that the fan and outdoor coil, the blower wheel, blower scroll, electric heater, and all drain pas- sages are thoroughly cleaned at least once per year. Carrier recommends that as a minimum, the cleaning should be conducted prior to the start of each heating season. The air inlet filters should be cleaned every month. Depending on local cond
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EXTERNAL PARTS VENT HANDLE EXTERNAL PARTS include the polymer sleeve and grilles. The sleeve manufacturer recommends cleaning the surface, including the grilles, with household detergent and water. MAGNET INTERNAL PARTS INTERNAL PARTS should be cleaned at least once during the year. The outdoor vent filter should be cleaned at least once during a cooling or heating season. Internal parts that should be cleaned include the fol- lowing (see Figures 6, 18, and 19): Outdoor vent filter
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52C SERIES PREVENTATIVE MAINTENANCE Preventative maintenance is essential to proper unit operation, efficiency and longevity. To assure equip- ment operates properly it must be properly main- tained. Equipment operation should be checked and verified several times during each year. During regular unit inspection and maintenance, fol- low the guidelines below: Wash both sides of outdoor coil Wash basepan and outdoor vent filter Wash the indoor coil Clean the blower wheel and front panel
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TROUBLESHOOTING POSSIBLE CAUSES SOLUTIONS UNIT DOES NOT START • Unit may have become unplugged • Check that plug is securely in wall receptacle. • Fuse may have blown • Replace the fuse. See Note 1. • Circuit breaker may have been tripped • Reset circuit breaker. See Note 1. • Unit mode dial may be set to the OFF position • Switch mode dial to an operating mode. UNIT NOT COOLING/HEATING ROOM • Unit air discharge section is blocked • Make sure that curtains, blinds or furniture are not restrictin
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52C SERIES ACCESSORIES ACCESSORY FORM NUMBER PART NUMBER DESCRIPTION Wall Sleeves 52S-48SI WALL-SLEEVE-1PK Non-Insulated Plastic Wall Sleeve, 1 per pack WALL-SLEEVE-9PK Non-Insulated Plastic Wall Sleeve, 9 per pack SLEEVE-INSUL-1PK Insulated Plastic Wall Sleeve, 1 per pack 52S-50SI SLEEVE-STEEL-1PK Insulated Metal Wall Sleeve, 1 per pack 52S-49SI* SLEEVE-EXT24-1PK Extended Metal Wall Sleeve for Deep Wall Applications (24 in. deep), 1 per pack Exterior Grilles† 52S-59SI GRILLE-ALU-STAMP Stamped A
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52C SERIES Copyright 2001 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 132 Catalog No. 535-20016 Printed in U.S.A. Form 52C-1SI Pg 16 9-01A 5-01 Replaces: New Book 1 4 Tab 9a 11a
