Carrier 50XT- Manuals

Page 2 - TABLE OF CONTENTS

2 for protection against damage. The outdoor coil is internallymounted on the top tier of the unit. Copper fin coils and pre--coated fin coils are available from the factory by special order. These coilsare recommended in applications where aluminum fins are likely to be damaged due to corrosion. Th...

Page 3 - MODEL NUMBER NOMENCLATURE; Cooling Capacities and Efficiencies

3 MODEL NUMBER NOMENCLATURE 50XT 0 1 024 3 Type of Unit 50XT - Packaged Electric Heat Pump Nominal Cooling Capacity024 - 2 Ton 030 - 2.5 Ton 036 - 3 Ton 042 - 3.5 Ton 048 - 4 Ton 060 - 5 Ton N/A – – – Options BT - AL evap, vinyl condens CC - AL evap, CU condens CU - CU evap & condens TP - Base u...

Page 4 - PHYSICAL DATA

4 PHYSICAL DATA UNIT SIZE 024 030 036 042 048 060 NOMINAL CAPACITY (ton) 2 2 --- 1/2 3 3 --- 1/2 4 5 OPERATING WEIGHT (lb) (kg) 405 184 435 197 464 210 476 216 492 223 535 243 COMPRESSOR Two --- Stage Scroll REFRIGERANT: PURON (R --- 410A) Quantity (lb) (kg) 10.3 4.7 11.5 5.2 9.7 4.4 14.0 6.4 15.5 7...

Page 5 - OPTIONS AND ACCESSORIES; Electric Heaters

5 OPTIONS AND ACCESSORIES Factory--installed optionsCoil options include tin--plated* indoor hairpins, copper/copper and vinyl--coated construction for refrigerant coils. Units areshipped standard with copper tube/aluminum fin construction. See model number nomenclature for coil options.*Tin--plated...

Page 9 - ACCESSORY DIMENSIONS; Roof Curb for Small Cabinet; Roof Curb for

9 ACCESSORY DIMENSIONS Gask et around outer edge Insulated deck pan Gask et around duct S/A R/A HVAC unit base *Gask eting outer flange Flashing field supplied Roofing material field supplied Cant str ip field supplied *Provided with roof curb Roof Ductwork field supplied Insulation (field supplied)...

Page 10 - 0XT SUGGESTED RIGGING; SELECTION PROCEDURE; Determine cooling and heating requirements at design

10 50XT SUGGESTED RIGGING -in. (914 mm) DETAIL A A06298 A06296 CABINET MODEL RIGGING WT lb kg Small 50XT--024 418 190 50XT--030 448 203 Large 50XT--036 469 213 50XT--042 491 223 50XT--048 497 225 50XT--060 548 249 NOTE : See dimensional drawing for corner weight distribution. Corner weights shown on...

Page 29 - Multiplication Factors

29 PERFORMANCE DATA (CONT) Multiplication Factors Heater kW Rating Voltage Distribution V/3/60 Multiplication Factor 240 200 .69 208 .75 230 .92 240 1.00 LEGEND BF— Bypass Factoredb— Entering Dry--Bulb Ewb— Entering Wet--BulbkW — Total Unit Power Input ldb— Leaving Dry--Bulb lwb— Leaving Wet--BulbSH...

Page 31 - TYPICAL PIPING AND WIRING

31 TYPICAL PIPING AND WIRING ROOF RETURN-AIR FLEXIBLE DUCT CEILING CONCENTRIC DIFFUSER BOX (FIELD-SUPPLIED) SUPPLY-AIR FLEXIBLE DUCT ROOF-MOUNTING CURB C00023 USER INTERFACE DISCONNECT PER NEC* FROM POWER SOURCE RETURN AIR TOP COVER *NEC - NATIONAL ELECTRICAL CODE A06279

Page 32 - APPLICATION DATA; Condensate trap; Ductwork; Balance Point Worksheet; Building Heat Loss, 1000BTUH

32 APPLICATION DATA Condensate trap — A 2--in. (51 mm) condensate trap must be field supplied. 1” (25mm) MIN. 2” (50mm) MIN. TRAP OUTLET Ductwork — Secure downflow discharge ductwork to roof curb. For horizontal discharge applications, attach ductwork to unit withflanges. To convert a unit to downfl...

Page 33 - ELECTRICAL DATA

33 ELECTRICAL DATA UNIT SIZE V-- PH-- HZ VOLTAGE RANGE COMPRESSOR OFM FLA IFM FLA ELECTRIC HEAT SINGLE POINT POWER SUPPLY NOMINAL FLA MCA MOCP MIN MAX RLA LRA kW* 024 208/230--1--60 187 253 15.3 52.0 0.9 4.3 --/-- --/-- 24.3/24.3 35/35 3.8/5.0 18.1/20.8 46.9/50.3 50/60 5.4/7.2 26.0/30.0 56.8/61.8 60...

Page 35 - CONTROLS

35 CONTROLS Sequence of Operation The 50XT packaged heat pump is designed for installation with acommunicating UI. This unit will not respond to commands provided by a common thermostat except under certain emergency situations.The UI uses temperature, humidity and other data supplied from indoor an...

Page 36 - GUIDE SPECIFICATIONS

36 GUIDE SPECIFICATIONS SINGLE--PACKAGED HEAT PUMP UNITS CONSTANT VOLUME APPLICATION HVAC GUIDE SPECIFICATIONSSIZE RANGE: 2 TO 5 TONS, NOMINAL (COOLING) MODEL NUMBER: 50XT PART I -- GENERAL SYSTEM DESCRIPTION Outdoor rooftop or ground mounted heat pump unit utilizing ahermetic, 2--stage scroll compr...