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ARCHITECTS AND ENGINEERS’ MANUAL
PREMIER SERIES 52P
COMFORT SERIES 52C
PACKAGED TERMINAL
AIR CONDITIONERS
AND HEAT PUMPS
CONTENTS
Page Page
Seamless Basepan . ........................... 11
APPLICATIONS ............................ 3,4
CondensateDrainValve.. ...................... 11
NewConstruction..............................3
CondensateRemovalSystem. ................... 11
Retrofit/Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
HeatPumps PayTheirOwnWay. ................
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Valued Carrier Customer, Carrier’s Architects and Engineer’s manual has been specifically developed to make your product and accessory selection easier and faster. This manual will help you customize your application to ensure the greatest comfort for your guests and the highest reliability and lowest costs for you. Enjoy the ultimate in comfort, humidity control, and energy savings with Carrier’s com- plete line of Packaged Terminal Air Conditioning (PTAC) products. Choose from either the Premi
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APPLICATIONS Whether you are designing a new structure or replac- Lower Operating Costs And Reliable Comfort ing packaged terminal air conditioning units in an For The Occupant existing building, Carrier will meet your needs. Heat pump models offer substantial savings over Hotels and motels models with conventional electric resistance heaters Nursing homes and assisted living care centers Individual units allow tenants to choose the degree Offices of comfort and operating economy. Apa
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APPLICATIONS (cont) APPLICATION Oversizing If a PTAC unit is oversized (cooling capacity is greater CONSIDERATIONS than required capacity for the specific application), the Installation instructions are shipped with all PTAC unit will cool the space down to the desired tempera- units. It is important that air conditioning systems be ture too quickly. properly sized and installed for each application in The unit will cycle on and off, however, dehumidifica- order to achieve the desired temperatur
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TESTING 1.PRESS RESET BUTTON. 2.PLUG INTO POWER 3.P RR EC ES ES PT TA E C ST LEB . UTTON UNIT SHOULD LIGHT. 4. PRESS RESET BUTTON AGAIN FOR USE. DO NOT USE IS TEST ABOVE FAILS PRODUCT OVERVIEW (52P AND 52C) This section summarizes product features covered in detail in later sections of this manual: MODE 2 AIR 2-WAY WIRE SCREEN FRESH AIR BI-MOLDED THERMOSTAT WITH COPPER TUBE ROTARY SELECTION FILTERS CONTROL CONDENSER TEMPERATURE ALUMINUM COMPRESSORS DISCHARGE SWITCH ARM SHROUD LIMITER FIN COILS G
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PRODUCT FEATURES AND BENEFITS (52P AND 52C) The 52P and 52C models are a single-package, The new aerodynamic split condenser shroud design through-the-wall unit for heating and cooling hotel improves airflow and reduces outdoor noise, providing rooms, offices, apartments, condominiums, and resi- a more relaxing outdoor environment. The new split dential additions. Features include: design allows for easy access to the outdoor coil to facilitate routine cleaning of the coil. The propeller-type
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NO-RUST WEATHER LAST™ WALL SLEEVE AND FRONT PANEL The indoor front panel and polymer wall sleeve use nonmetallic compounds that never rust or corrode, do not support combustion, and do not give off toxic fumes. The weather-resistant feature exceeds require- ments of Underwriters’ Laboratories and resists dam- age caused by impact and scratching. The Weather Last feature also insulates and has up to 10 times the acoustic absorption of metal cabinets. Standard Wall Sleeve (Polymer) Insulated polym
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PRODUCT FEATURES AND BENEFITS (cont) TWO-PIECE LIFETIME INDOOR FILTER New two-piece removable filters easily slide in and out from the front of the PTAC unit and are inter- changeable. The front panel does not need to be removed to access or change the filters. The filters are washable and permanent. Two-Piece Indoor Filter WASHABLE VENT AIR FILTER The unique vent system is activated by a two-position control. Fresh outside air is redirected by the vent door to an inside low-pressure area. A mol
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POWER CORD FOR 265-V UNITS A power cord is included for 265-v units. The power cord is 18 in. long (cord extends 15 in. from bottom of front panel) and per UL and National Electrical codes must plug into an electrical subbase. 265-V Unit with Power Cord POWER CORD PROTECTION FOR 230/208-V UNITS The power cord for the 230/208-v unit provides power cord protection by automatically disconnecting power during an unsafe condition. Power can be restored by pressing the RESET button. 30 Amp In-line 15/
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TESTING 1.PRESS RESET BUTTON. 2.R PL EU CG EP IN TT AO CLP E O . W ER 3. PRESST EST BUTTON UNIT 4. S P H R O EU SL SDR LE IG SE HT T.BUTTON AGAIN FOR USE. DO NOT USE IS TEST ABOVE FA L I S PRODUCT FEATURES AND BENEFITS (cont) EASY ACCESS TO CHASSIS Access to the chassis simply requires removing four screws andthenslidingthe chassisout of thesleeve for service. CHASSIS ATTACHMENT SCREWS (SAME LOCATION ON OPPOSITE SIDE) PLUG TEST/ RESET BUTTONS Easy Service Access HIDDEN CONTROLS Fan Cycle Switch
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ENHANCED COPPER TUBING Enhanced copper tubing is more efficient and durable and can be repaired in the field, if required. Because copper is a very stable metal, it is durable and resists corrosion. Enhanced copper tubing increases: heat transfer capability the efficiency of the cooling and heating processes thermal conductivity (by creating additional tube surface and turbulent refrigerant gas flow) Every Carrier PTAC coil undergoes thorough leak test- ing and pressure testing up to 350 l
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PRODUCT FEATURES AND BENEFITS (cont) HEAT PUMPS PAY THEIR How The Heat Pump Works OWN WAY Heat pump models are available at a nominal addi- tional cost. In many locales, the payback is realized in just a few months. Cost and payback details are pro- vided on the next page. Special Features Two-Stage Indoor Thermostat: The indoor thermostat senses the indoor temperature In Hot Weather: and automatically turns on the electric heat to warm Carrier’s PTAC units provide indoor comfort in the the room
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HEAT PUMP ENERGY SAVINGS Heat pumps save more on operat- ing costs during the heating cycle than heat/cool models. The table below shows that the higher initial cost of purchasing a heat pump is ZONE V quickly made up in lower operating VI costs. ZONE V Use the maptoidentifythe climate zone’s designated number. Reading down the left-hand column of the ZONE IV table, select the cost/kWh rate in this zone that most closely approxi- mates your local rate. The approxi- mated savings and payback peri
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TESTING 1.PRESS RESET BUTTON. 2.PLUG INTO POWER 3.PR RECE ESS PT TA E C ST LEB . UTTON UNIT SHOULD LIGHT. 4.P FO RES R U S SR E.ESET BUTTON AGAIN DO NOT USE IS TEST ABOVE FAILS ORDERING DATA (52P AND 52C) For immediate assistance, call 1-800-827-7435 or contact your local Carrier dealer. Standard Unit Chassis with front panel Electro-mechanical controls Cord-connected chassis for 230/208-v and 265-v units Lead-time: Many models are in stock for immediate delivery; call for lead-times. EXTE
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LO HI FAN SPEED Comfort WALL THERMOSTAT COMFORT FACTORY-INSTALLED OPTIONS (52P AND 52C) WALL THERMOSTAT CONTROL (RC,RP) Carrier’s wall thermostat control option includes: a standard chassis with front panel factory-installed low voltage controls for remote thermostat operation indoor coil freeze protection user accessible selector switch for high or low fan speed Wall thermostat and wall thermostat wire must be ordered separately. See page 50 for a diagram of multiple PTAC units con- tro
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FIELD-INSTALLED ACCESSORIES (52P AND 52C) The sleeve's alpine mist color (a shade of beige) WALL SLEEVES closely matches the front panel and blends in well with any inside or outside decor. Weather Last™ Wall Sleeve The polymer wall sleeve comes in both insulated (fac- tory installed) or non-insulated, to meet the require- For the best performance and longest life, Carrier ments of every application. recommends genuine Carrier wall sleeves for all installations. All Carrier wall sleeves are buil
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42 IN. Insulated Metal Wall Sleeves Part No.: SLEEVE-STEEL-1PK 16 IN. Part No.: SLEEVE-EXT18-1PK Part No.: SLEEVE-EXT24-1PK Part No.: SLEEVE-EXT26-1PK Part No.: SLEEVE-EXT28-1PK Carrier's metal wall sleeves are available in a variety of sizes for most applications and difficult installa- 14/18/24/26/28 IN. tions. Choose from 14 in., 18 in., 24 in., 26 in., or 28 in. standard depth sizes. All metal wall sleeves come with factory-installed insulation, designed to Standard and Extended Metal Wall S
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FIELD-INSTALLED ACCESSORIES (52P AND 52C) (cont) OUTDOOR GRILLES Polymeric Architectural Outdoor Grilles (Louvered) Carrier recommends only the use of Carrier-supplied grilles for use on the 52P and 52C series units. How- Part No.: GRILLE-PLA-BROWN ever, the architectural designs of a building may dic- Part No.: GRILLE-PLA-BEIGE tate the use of special or oversized grilles and/or Part No.: GRILLE-PLA-ALPIN (color matches louvers. Special louvers or any special architectural Carrier wall sleeve)
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Outdoor Grille Selection IMPORTANT: If you wish to use a grille not made by Carrier for your Carrier unit(s), con- X tact the Carrier Application Engineering Group at 1-800-894-6449. Y Y X X X Y The following guidelines must be followed in the ini- tial selection of any alternate exterior grille or louver: Y 1. The louver must have a minimum of 65% free area. Free area is the minimum area of the opening in an air inlet or outlet in which air can pass. Free Area (%) = X/Y. 2. The louver should be
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FIELD-INSTALLED ACCESSORIES (52P AND 52C) (cont) SUBBASE Part No.: SUBBASE-NON-ELEC Part No.: SUBBASE-230V-30A Part No.: SUBBASE-265V-30A Part No.: SUBBASE-230V-15A Part No.: SUBBASE-265V-15A Part No.: SUBBASE-HARDWIRE Part No.: SUBBASE-230V-20A Part No.: SUBBASE-265V-20A Part No.: LEVELING-LEGS This decorative subbase supports the unit and is avail- able in three basic models: non-electrical, electrical, and hardwired. A subbase (or leveling legs) is required for installa- tions where the wall
