Carrier COMFORT 52C SERIES- User Manual

Page 2 - Lodging Products Group

2 Valued Carrier Customer, Carrier’s Product Data Manual has been specifically developed to make your product and accessory selection easier and faster than ever. This manual will help you customize your application to ensure the greatest comfort for your guests and the highest reliability and lowes...

Page 3 - SELECTIO

Always look for these symbols, the air conditioning industr y seals of certified p erformance, efficienc y and ca p acit y. 3 QU IC K SPEC IFIC A TION S C OOLIN G & ELEC TR IC H E A T MO D E L N U M BE R Cool in g Ca pa ci ty BT U H (W H ) EER Ele ct rica l H eati ng C ap ac ity Re ve rs e Cyc l...

Page 4 - ADVANTAGES FOR NEW; Initial Cost Savings for the Building Owner; Lower Operating Costs and Reliable Comfort; NOTE

APPLICATIONS Whether you are designing a new structure or replacing packaged terminal air conditioning units in an existing building, Carrier will meet your needs. S Hotels and motels S Nursing homes and assisted living care centers S Offices S Apartments S Single--family dwellings S Home conversion...

Page 5 - APPLICATION CONSIDERATIONS; Undersizing

5 APPLICATION CONSIDERATIONS Installation instructions are shipped with all PTAC units. It is important that air conditioning systems be properly sized and installed for each application in order to achieve the desired temperature and humidity levels within the space to be conditioned. It is strongl...

Page 6 - ORDERING DATA; Standard Unit; Chassis with front panel; PRODUCT CATALOG NUMBER; ACCESSORY POWER CORD (REQUIRED) CATALOG NUMBER

6 ORDERING DATA For immediate assistance, call 1--800--827--7435 (in U.S.A. only) or contact your local Carrier dealer. Standard Unit S Chassis with front panel S Electronic controls with touchpad and digital display Lead-- time: Many models are in stock for immediate delivery; call for lead-- times...

Page 8 - Electronic Temperature Limiting

8 PRODUCT FEATURES AND BENEFITS (52M) S Improved sound for quiet operation S Exceeds ARI (Air Conditioning and Refrigeration Institute) minimum efficiency requirements with exceptional energy efficiency ratios (EERs) S Easy to operate digital keypad S Easy to see electronic display S Wall thermostat...

Page 9 - Front Panel; FILTER; Air filters

9 NO--RUST WEATHER LAST t 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 requirements of Underwriters Laboratories and r...

Page 10 - OUTDOOR AIR VENTILATION; The vent will provide up to 65 cfm of fresh air.; GRILLE; Reversible Polycarbonate Discharge Grille; DIGITAL KEYPAD AND; Electronic Display; SYSTEM CONFIGURATION; Dipswitches

10 OUTDOOR AIR VENTILATION 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 molded plastic filter prevents dirt and debris from entering the room side of the unit. The vent mechanism is made from non c...

Page 11 - WALL THERMOSTAT INTERFACE; Notes; INTERFACE; Terminal Connector Removal and Replacement; Wall Thermostat and Energy Management; POWER CORD FOR 265V UNITS; Note; Accessory

11 WALL THERMOSTAT INTERFACE The standard wall thermostat interface provides a simple to install thermostat connection. The unit has a removable terminal connector to make field wiring easy. See more info on wall thermostat connections in the Dimensional Drawings and Installation Data Section. Notes...

Page 12 - POWER CORD PROTECTION FOR; Power cord Plug Head; EASY ACCESS TO CHASSIS; Easy to Access Chassis

12 POWER CORD PROTECTION FOR 230/208V UNITS The power cord for the 208/230--v unit provides power cord protection by automatically disconnecting power during an unsafe condition. Power can be restored by pressing the RESET button. A07551 Power cord Plug Head BI--MOLDED CONDENSER SHROUD The bi--molde...

Page 13 - Condensate Drain Valve Prevents Water; CONDENSATE REMOVAL; Condensate Removal System

13 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: S heat transfer capability S the efficiency of the cooling and h...

Page 14 - SPECIAL FEATURES; Manual Compressor Override Configuration:; HOW THE HEAT PUMP WORKS

14 HEAT PUMPS PAY THEIR OWN WAY Heat pump models are available at a nominal additional cost. In many locales, the payback is realized in just a few months. Cost and payback details are provided on the next page. SPECIAL FEATURES Two- Stage Thermostat: The indoor thermostat senses the indoor temperat...

Page 15 - Carrier’s energy calculator.

15 HEAT PUMP ENERGY SAVINGS Heat pumps save more on operating costs during the heating cycle than heat/cool models. The table below shows that the higher initial cost of purchasing a heat pump is quickly made up in lower operating costs.Use the map to identify the climate zone’s designated number. R...

Page 16 - WALL SLEEVES; Weather Last; Important Sleeve Installation Considerations:; Polymer Wall Sleeves; IMPORTANT: Insulated Polymer Wall sleeve

16 FIELD--INSTALLED ACCESSORIES WALL SLEEVES Weather Last t Wall Sleeve For the best performance and longest life, Carrier recommends genuine Carrier wall sleeves for all installations.All Carrier wall sleeves are built with a pitch of 1/4 in. per foot (20.3 mm/m); for self--pitching of the unit, th...

Page 17 - Insulated Metal Wall Sleeves; Standard and Extended Metal Wall Sleeve; Wall Sleeve Molding Kit; Friedrich (and ZoneAire) Retrofit Wall Sleeve; Friedrich Wall Sleeve Adapter Kit

17 FIELD--INSTALLED ACCESSORIES (CONT.) Insulated Metal Wall Sleeves Part No.: SLEEVE--STEEL--1PK Part No.: SLEEVE--EXT18--1PK Part No.: SLEEVE--EXT24--1PK Part No.: SLEEVE--EXT26--1PK Part No.: SLEEVE--EXT28--1PKCarrier’s metal wall sleeves are available in a variety of sizes for most applications ...

Page 18 - OUTDOOR GRILLES; Aluminum Architectural; Polymeric Architectural Outdoor Grilles; Architectural Grille in; Standard Outdoor Aluminum Grille; : Color samples can be ordered in packs of 10; Standard Grille

18 FIELD--INSTALLED ACCESSORIES (CONT.) OUTDOOR GRILLES Carrier recommends only the use of Carrier--supplied grilles for use on the 52M series units. However, the architectural designs of a building may dictate the use of special or oversized grilles and/or louvers. Special louvers or any special ar...

Page 19 - OUTDOOR GRILLE SELECTION; IMPORTANT: If you wish to use a grille not made; Sample Calculations; Hardwire Kit; Conduit Interface Kit

19 FIELD--INSTALLED ACCESSORIES (CONT.) OUTDOOR GRILLE SELECTION IMPORTANT: If you wish to use a grille not made by Carrier for your Carrier unit(s), contact Carrier Application Engineering. The following guidelines must be followed in the initial selection of any alternate exterior grille or louver...

Page 20 - SUBBASE; Non - Electrical Subbase; Electrical Subbase Assembly

20 FIELD--INSTALLED ACCESSORIES (CONT.) SUBBASE Part No.: SUBBASE--230V--15APart No.: SUBBASE--230V--20APart No.: SUBBASE--230V--30APart No.: SUBBASE--265V--15APart No.: SUBBASE--265V--20APart No.: SUBBASE--265V--30APart No.: SUBBASE--NON--ELECPart No.: LEVELING--LEGS This decorative subbase support...

Page 21 - and offer accurate leveling and support for units; Leveling Legs; Subbase Fuse Kit; at the unit when required by NEC (National Electric; IMPORTANT: The Fuse Kit can only be; Subbase Power Disconnect Switch; provides a recessed power disconnect for the PTAC; IMPORTANT: This accessory can only be

21 FIELD--INSTALLED ACCESSORIES (CONT.) Leveling Legs Part No.: LEVELING--LEGSLeveling legs attach easily to Carrier’s wall sleeve and offer accurate leveling and support for units without a subbase. Leveling legs are adjustable from 3--1/4 to 5--1/2 inches (82.6 to 139.7 mm). Leveling Legs Subbase ...

Page 22 - THERMOSTATS; Digital Programmable Thermostat; Programmable Thermostat; Thermostat Locking Cover

22 FIELD--INSTALLED ACCESSORIES (CONT.) THERMOSTATS Carrier’s full line of wall thermostats are designed to enhance every PTAC application. The Carrier Comfort t Series of thermostats consists of programmable and non--programmable air conditioner and heat pump controls . These units feature non--mer...

Page 23 - Condensate Drain Kit; IMPORTANT: For internal drains installed; Replacement Filters; Replacement FIlters; Baffle Kit

23 FIELD--INSTALLED ACCESSORIES (CONT.) Condensate Drain Kit Part No.: DRAIN--KIT--4PKThis universal drain kit may be used internally or externally to route condensate to a drainage system. It can be field--installed on any Carrier wall sleeve.Although Carrier units are designed to dissipate all the...

Page 24 - Proper building practices must be used when

24 DIMENSIONAL DRAWINGS AND INSTALLATION DATA -- NEW CONSTRUCTION Proper building practices must be used when constructing a wall opening to support a PTAC wall sleeve and chassis. If practices are unknown, consult your local architect or building contractor. Installed wall sleeve must be level from...

Page 25 - Front View

25 DIMENSIONAL DRAWINGS AND INSTALLATION DATA CONTINUED VOLTAGE CURRENT DIMENSIONS --- Inches (mm) PLUG TYPE VOLTS AMPS X Y Z NEMA PLUG NEMA RECEPTACLE SUPPLIER 1 SUPPLIER 2 SUPPLIER 1 SUPPLIER 2 208/230 15 58 (1473) 2.36 (60) 2.44 (62) 3.35 (85) 4 (101) 6 --- 15P 6 --- 15R 208/230 20 58 (1473) 2.36...

Page 26 - DIMENSIONAL DRAWINGS AND INSTALLATION DATA --; Standard Polymer Non--Insulated Wall Sleeve; Framing and Minimum Wall Sleeve Opening

26 DIMENSIONAL DRAWINGS AND INSTALLATION DATA -- NEW CONSTRUCTION (CONT.) WALL SLEEVE MOUNTING DIMENSIONS FOR STANDARD AND ACCESSORY GRILLES 42” (1067 mm) 16” (406 mm) 14-7/8” (378 mm) A07633 Standard Polymer Non--Insulated Wall Sleeve Standard Polymer Insulated Wall Sleeve 42 in (1067) 16 in (406) ...

Page 27 - TYPICAL WALL INSTALLATION; Typical Wall Sleeve Installation; Sleeve may be flush mounted to floor, but front; Typical Curtain Wall Installation (All Models)

27 TYPICAL WALL INSTALLATION 5/8” (15.9 mm) A07384 Typical Wall Sleeve Installation NOTES : 1. Sleeve may be flush mounted to floor, but front panel may have to be notched to accommodate service cord. 2. If more than 4 in. (101.6 mm) of sleeve projects into room, an accessory subbase must be used fo...

Page 28 - MINIMUM CLEARANCE FOR INDOOR AND OUTDOOR DISCHARGE AIR; CAUTION; Back of Polymer Wall Sleeve

A07386 52M Indoor and Outdoor Discharge Air Circulation 36" (914.4 mm) MINIMUM DISTANCE FROM SLEEVE TO BUILDING WALLS, SHRUBS, etc. 15” (381.0 mm) MINIMUM DISTANCE FROM FRONT PANEL TO OBJECTS IN ROOM 28 DIMENSIONAL DRAWINGS AND INSTALLATION -- NEW CONSTRUCTION (CONT.) MINIMUM CLEARANCE FOR INDOO...

Page 29 - 2M WITH SUBBASE

29 DIMENSIONAL DRAWINGS AND INSTALLATION DATA -- NEW CONSTRUCTION (CONT.) 52M WITH SUBBASE 0’-0 7/8” (22) SUBBASE ACCESS COVERS 0’-3 1/4” MIN. (83)0’-5 1/2” MAX. (140) OUTSIDE WALL SIDE SUBBASE LEVELING BOLTS ACCESSORY DRAIN(EXTERNAL OR INTERNAL) SEE NOTES (3) 1 1/8” (28.6) DIA.KNOCKOUTS 19 1/2”(495...

Page 30 - WALL THERMOSTAT CONNECTIONS; Control Box Wire Terminal for; Terminal Connections; Terminal Wire Routing

30 WALL THERMOSTAT CONNECTIONS R Y GH GL C W O Common Energy Management (24VAC in) TYPICAL WALL THERMOSTAT TERMINAL BLOCK See Note 1 See Note 2 NOTES:1. Use terminal "O" for heat pump connection only.2. Terminal "C" (common) is typically only required for digital thermostats. A07059 ...

Page 31 - PERFORMANCE AND ELECTRICAL DATA; hardwire connection must be used.

31 PERFORMANCE AND ELECTRICAL DATA MODEL 52MQ (208/230--1--60) MODEL NUMBER 52MQ CAPACITY * EER COP } VOLTAGE RANGE COOLING Cooling Btuh (WH) Heating AMPS WATTS Rev. Cyc. BtuH (WH) Electric † U07 --- --- --- 3 7,000 / 7,000 (2,051 / 2,051) 6,500 / 6,600 (1,910 / 1,934) 15 or 20 Amp cord only 12.2 / ...

Page 35 - CFM CHART

35 CFM CHART 52M CFM CHART Model Voltage Dry CFM* Wet CFM* Low Medium High Low Medium High 52ME/Q --- U073 208 265 290 315 235 260 290 230 295 320 345 275 290 300 52ME/Q --- U074 265 295 320 345 275 290 300 52ME/Q --- U093 208 270 305 345 240 280 305 230 300 330 360 270 300 320 52ME/Q --- U094 265 3...

Page 41 - Carrier Model Numbers:; Part 1 — System Description

41 PACKAGED TERMINAL COOLING UNIT WITH HEAT PUMP OR ELECTRIC HEATING HVAC Guide SpecificationsSize Range: Cooling: 7,000to 15,000 Btuh (2051 to 4396 WH) Electrical Heating: 5,600 to 17,100 Btuh (1641 to 5015 WH)Heat Pump: 6,400 to 13,500 Btuh (1876 to 3956 WH) Carrier Model Numbers: 52ME Performance...

Page 44 - HANDLING

44 3.0 DELIVERY, STORAGE, AND HANDLING The packaging of the chassis shall be sufficient to protect the chassis from damage during shipment via an enclosed truck. Chassis must also be able to withstand an impact force of 8 g’s and a random continuous force of 1g, during shipping.Chassis, wall sleeves...

Page 45 - ACCESSORIES

45 ACCESSORIES ACCESSORY FORM NUMBER PART NUMBER DESCRIPTION Wall Sleeves 52S --- 48SI WALL --- SLEEVE --- 1PK SLEEVE --- INSUL --- 1PK Non --- Insulated Polymer Wall Sleeve, 1 per pack Insulated Polymer Wall Sleeve, 1 per pack 52S --- 50SI SLEEVE --- STEEL --- 1PK Insulated Metal Wall Sleeve, 1 per...

Carrier COMFORT 52C SERIES- User Manual

Table of Contents:

Summary

Other Carrier Models