50XP
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1
50XP
Performancet 13 SEER
Single--- Packaged Air Conditioner System with PuronR
(R ---410A) Refrigerant Single and Three Phase
2 to 5 Nominal T ons (Sizes 024--- 060)
Product Data
C99064
Fig. 1 -- Unit 50XP
Single--Packaged Products with Energy--Saving Features and
PuronR refrigerant.
S Up to 13.5 SEER
S Factory-- Installed TXV
S Variable Speed Blower--Standard
S Low Sound Levels
FEATURES/BENEFITS
One--piece cooling unit with optional electric heater, low
installation cost, dependable performance and easy maintenance.
Efficient operation
High--efficiency design with a SEER (Seasonal Energy Efficiency
Ratio) of up to 13.5.
Puron Environmentally Sound Refrigerant is Carrier’s unique
refrigerant designed to help protect the environment. Puron is an
HFC refrigerant which does not contain chlorine that can harm the
ozone layer. Puron refrigerant is in service in millions of systems
proving highly reliable, environmentally sound performance.
IdealHumidity Technology featuring Thermidistat control and
Variable Speed Blower motor that provides greater comfort,
humidity control, and energy efficiency. You can expect up to 30
times better dehumidification; economical constant fan for less
than $50 a year, which provides improved indoor air quality and
more even temperatures from room to room; and reduced indoor
noise due to lower air velocity. In addition, you’ll realize improved
installation flexibility with 3 different airflow choices for best
overall comfort.
Easy Installation
Factory--assembled package is a fully self--contained, electric
cooling unit that is prewired, pre--piped, and pre--charged for
minimum installation expense. These units are available in a
variety of standard cooling sizes with voltage options to meet
residential and light commercial requirements. Units are
lightweight and install easily on a rooftop or at ground level. The
high tech composite base eliminates rust problems associated with
ground level applications.
Durable, dependable components
Scroll Compresso rs are designed for high efficiency. Each
compressor is hermetically sealed against contamination to help
promote longer life and dependable operation. Each compressor
also has vibration isolation to provide quieter operation. All
compressors have internal high pressure and overcurrent
protection.
Convertible duct configuration
Unit is designed for easy use in either downflow or horizontal
applications. Each unit is easily converted from horizontal to
downflow. Downflow operation is easily provided in the field to
allow vertical ductwork connections. The basepan utilizes
knockout style seals on the bottom openings to ensure a positive
seal in the horizontal airflow mode.
Direct--drive variable speed blower motor is standard on all
models.
Direct--drive PSC condenser--fan motors are designed to help
reduce energy consumption and provide for cooing operation
downto55_F(13_C) outdoor temperature. Motormasterr II low
ambient kit is available as a field--installed accessory.
Thermostat controls
Time Guardr II anti--short cycle protection circuitry. If a
non--corporate thermostat without anti--short cycle protection is
used the Time Guard II field--installed anti--short cycle kit is
recommended.
Refrigerant system is designed to provide dependability. Liquid
filter driers are used to promote clean, unrestricted operation. Each
unit leaves the factory with a full refrigerant charge. Refrigerant
service connections make checking operating pressures easier.
Thermostatic Expansion Valve -- A hard shutoff, balance port
TXV maintains a constant superheat at the evaporator exit (cooling
cycle) resulting in higher overall system efficiency.
Evaporator and condenser coils are computer--designed for
optimum heat transfer and cooling efficiency. The evaporator coil
is fabricated from copper tube and aluminum fins and is located
inside the unit for protection again damage. The condenser coil is
internally mounted on the top tier of the unit. Copper fin coils and
pre--coated fin coils are available from the factory by special order.
these coils are recommended in applications where aluminum fins
are likely to be damaged due to corrosion. They are ideal for
seacoast applications.
High and Low Pressure Switches provide added reliability for the
compressor.
2
Low sound ratings ensure a quiet indoor and outdoor
environment with sound ratings as low as 72dBA. (See Page 4.)
Easy to service cabinets provide easy single--panel accessibility to
serviceable components during maintenance and installation. The
basepan with integrated drain pan provides easy ground level
installation with or without a mounting pad. Convenient handholds
are provided to manipulate the unit on the jobsite. A nesting feature
ensures a positive basepan to roof curb seal when the unit is roof
mounted. A convenient 3/4--in. (19.05 mm) wide perimeter flange
makes frame mounting on a rooftop easy.
Louvered Grille provides hail and vandalism protection for the
coil.
Cabinets are constructed of heavyduty, phosphated, zinc--coated
prepainted steel capable of withstanding 500 hours of salt spray.
Interior surfaces of the evaporator and electric heater compartments
are insulated with cleanable semi--rigid insulation board, which
keeps the conditioned air from being affected by the outdoor
ambient temperature and provides improved indoor air quality.
(Conforms to American Society of Heating, Refrigeration and Air
Conditioning Engineers No. 62P.) The sloped drain pan minimizes
standing water in the drain. An external drain is provided.
TABLE OF CONTENTS
FEATURES/BENEFITS 1--2.............................
MODEL NUMBER NOMENCLATURE 3.................
ARI CAPACITIES 4...................................
PHYSICAL DATA 5...................................
OPTIONS AND ACCESSORIES 6.......................
BASE UNIT DIMENSIONS 8--9.........................
ACCESSORY ROOF CURB 10..........................
SELECTION PROCEDURE 11..........................
PERFORMANCE DATA 12--16..........................
TYPICAL PIPING AND WIRING 17.....................
APPLICA TION DA TA 18...............................
ELECTRICAL DATA 19--20............................
TYPICAL WIRING SCHEMATICS 21--23.................
CONTROLS 24.......................................
GUIDE SPECIFICATIONS 25--26........................
50XP
3
MODEL NUMBER NOMENCLATURE
50XP
--- ---
--- --- ---
1
Type of U n it
50XP --- Single Packaged
Air Conditioner
System
Nominal Cooling Capacity
024 --- 2.0 Tons
030 --- 2.5 Tons
036 --- 3.0 Tons
042 --- 3.5 Tons
048 --- 4.0 Tons
060 --- 5.0 Tons
024
N/A
Electrical Supply
3 --- 208/230 --- 1 --- 60
5 --- 208/230 --- 3 --- 60
3
0
Series
Pack aging
Options
B T --- A L e v a p , v i n y l c o n d e n s e r
C C --- A L e v a p, C U c o n d e n s e r
CU --- CU evap & condenser
TP --- Base u nit with tin plated indoor coil hairpins
TV --- TP with vinyl coating on outdoor coil
TC --- TP with AL indoor coil & CU/CU outdoor
coil
See Price Page for full list of factory options.
Only used if ordering an option
LEGEND
AL --- Aluminum
CU --- Co
pp
er
---
N/A
REGISTERED
ISO 9001:2000
50XP
4
ARI* CAPACITIES
Cooling Capacities and Efficiencies
UNIT 50XP NOMINAL TONS STANDARD CFM
NET COOLING
CAPACITIES (Btuh)
EER** SEER†
024 2 770 24,000 11.0 13.2
030 2-- 1/2 960 29,000 11.0 13.0
036 3 1100 36,000 11.2 13.5
042 3-- 1/2 1450 41,000 11. 2 13.0
048 4 1450 45,000 11.0 13.0
060 5 1710 57,000 11.0 13.0
LEGEND
d B --- Sound Levels (decibels)
db—Dry Bulb
SEER—Seasonal Energy Efficiency Ratio
wb—Wet Bulb
COP--- Coefficient of Performance
* Air Conditioning & Refrigeration Institu te.
**At “A” conditions --- 80_F (26.7_C) indoor db/67_F (19.4_C) indoor wb &
95_F(35_C) outdoor db.
{ Rated in accordance with U.S. Government DOE Department of Energy)
test procedures and/or ARI Standards 210/240.
Notes:
1. Ratings are net values, reflecting the effects of circulating fan heat.
Ratings are based on:
Cooling Standard: 80°F ( 26.7_C) db, 67°F wb (19.4_C ) i n d o o r e n t e r i n g --- a i r
temperature and 95°Fdb(35_C) outdoor entering---air temperature.
2. Before purchasing this appliance, read important energy cost and effi-
ciency information available from your retailer.
A--Weighted Sound Power (dBA)
50XP
STANDARD
RATING
(dBA)
TYPICAL OCTAVE BAND SPECTRUM (dBA) (without tone adjustment)
125 250 500 1000 2000 4000 8000
024 72 58.8 63.5 67.2 66.9 63.7 58.3 50.0
030 72 58.8 63.5 67.2 66.9 63.7 58.3 50.0
036 72 60.7 63.3 66.8 66.5 64.2 60.3 53.0
042 72 56.7 62.8 67.8 67.4 63.7 57.7 50.8
048 78 62.4 69.9 71.3 73.4 70.0 66.3 60.1
060 78 63.5 67.6 71.8 75.5 71.0 68.1 59.9
* Tested in accordance with ARI Standard 270 (not listed in ARI).
50XP
5
PHYSICAL DATA
Physical Data--Unit 50XP
UNIT SIZE 024 030 036 042 048 060
NOMINAL CAPACITY (ton) 2 2 --- 1 / 2 3 3 --- 1 / 2 4 5
SHIPPING WEIGH T (lb)
SHIPPING WEIGH T (kg)
356
161
360
163
378
171
436
198
470
213
515
234
COMPRESSORS
Quantity
Scroll
1
REFRIGERANT (R -- -410A)
Quantity (lb.)
Quantity (kg)
7.3
3.3
8.0
3.6
9.5
4.3
10.7
4.9
11.25
5.1
13.2
6.0
REFRIGERANT METERING DEVICE TXV
OUTDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
2...21
11.95
2...21
12.0
2...21
13.6
2...21
15.4
2...21
17.4
2...21
19.3
OUTDOOR FAN
Nominal Cfm
Diameter (in.)
Diameter (mm)
Motor Hp (Rpm)
2350
22
558.8
1/8 (825)
2700
22
558.8
1/8 (825)
2350
22
558.8
1/8 (825)
2800
22
558.8
1/8 (825)
3300
22
558.8
1/4 (1100)
3300
22
558.8
1/4 (1100)
INDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
3...15
3.7
3...15
3.7
4...15
3.7
3...15
4.7
4...15
4.7
4...17
5.7
INDOOR BLOWER
Nominal Cooling Airflow (Cfm)
Size (in.)
Size (mm.)
Motor HP (RPM)
800
10x10
254x254
1/2 (1050)
1000
10x10
254x254
1/2 (1050)
1100
11x10
279.4x254
3/4 (1000)
1400
11x10
279.4x254
3/4 (1075)
1400 1750
11x10
279.4x254
11x10
279.4x254
3/4 (1075) 1.0 (1040)
HIGH --- PRESSURE SWITCH
(psig) Cut--- out Reset (Auto)
650 +/ --- 15
420 +/ --- 25
L O S S --- O F --- C H A R G E / L O W --- P R E S S U R E
SWITCH (Liquid Line) (psig) cut---out Re-
set (auto)
2 0 + / --- 5
45 +/ --- 10
RETURN--- AIR FILTERS†}
Throwaway Size (in.)
Throwaway Size (mm)
20x20x1
508x508x25
20x24x1
508x610x25
24x30x1
610x762x25
{ Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity
of 300 ft/minute for throwaway type or 450 ft/minute for high ---capacity type. Air filter pressure drop for non --- standard filters must not exceed 0.08 IN. W.C..
} If using accessory filter rack refer to the filter rack installation instructions for correct filter sizes and quantity.
50XP
6
OPTIONS AND ACCESSORIES
Factory--installed options
Coil options include Tin--Plated* indoor hairpins, copper/copper
and vinyl-- coated construction for refrigerant coils. Units are
shipped standard with copper tube/aluminum fin construction. See
model number nomenclature for coil options.
*Tin--Plated indoor coils are built with special hairpins that are
designed to resist both general pitting corrosion and excessive
indoor corrosion(Formicary Corrosion).
Field--installed accessories
Economizer with Solid -- State Controls and Barometric
Relief Dampers
Manual Air Damper (25% open)
Electric Heaters
Filter Rack
Flat Roof Curbs (8--in. and 14 -- in.) (203.2 and 355.6 mm)
Square--to--Round Duct Transition Kit
Thermidistatt
Thermostats
Crankcase Heater
Compressor Start Kit (for use on single--phase units only)
Rigging Kit
Low Ambient Kit (Motormaster® II Control)
Solid--State Time Guard® II Device
Lifting Kit
Economizer with solid--state controls and barometric relief
dampers includes filter racks and provide outdoor air during
cooling and reduce compressor operation.
Manual outside air damper includes hood and filter rack with
adjustable damper blade for up to 25% outdoor air.
Electric heaters provide additional heat in the unit when required.
Each package has a heater module that slides into the controls
compartment. Heater sizes range from 5.0 to 20.0 kW. The electric
heater design allows the use of a single--point power supply for the
entire unit, resulting in lower installed costs.
Filter Rack features easy installation, serviceability, and
high--filtering performance for vertical or horizontal applications.
Flat roof curbs in both 8 in. (203.2 mm) and 14 in. (355.6 mm)
sizes are available for roof mounted applications.
Square--to--round duct transition kit enables 024-- 048 size units
to be fitted to 14 in. (355.6 mm) round ductwork.
Thermidistat Control coupled with the system’s variable speed
indoor blower delivers Carrier’s patented IdealHumidity
Technology that allows for even greater humidity control. Along
with more precisely controlling temperature and humidity, the
Thermidistat offers full seven--day programmability allowing you
to further customize your comfort and energy savings.
Thermostats provide control for the system heating and cooling
functions. Thermostat models are available in both programmable
and non--programmable versions.
Crankcase Heater provides anti--floodback protection for
low--load cooling applications.
Compressor start kit assists compressor start--up by providing
additional starting torque on single phase units and prolongs
compressor motor life.
Rigging kit includes lifting brackets which are inserted into the
unit base rigging holds to lift unit for rooftop applications.
Low--ambient kit (Motormaster II control) allows the use of
mechanical cooling down to outdoor temperatures as low as 0_F
(--17_C) when properly installed.
Solid--state Time Guard II device provides short--cycling
protection for the compressor. Not required with corporate
electronic thermostats.
Lifting kit, including 4 metal brackets that are available to assist in
lifting this product onto a roof application.
Electric Heaters
CATALOG
ORDERING NO.
NOMINAL
CAPACITY (kW)
FUSES
USED WITH SIZES
024 030 036 042 048 060
ELECTRIC HEATERS (208/230 — SINGLE PHASE — 60 Hz)
CPHEATER052A00 5.0 0 X X X X X X
CPHEATER069A00 7.5 0 X X X X X X
CPHEATER065A00 10.0 0 X X X X X X
CPHEATER051A00 15.0 4 X X X X X
CPHEATER053A00 20.0 6 X X
CPHEATER054A00 20.0 6 X
ELECTRIC HEATERS (208/230 — THREE PHASE — 60 Hz)
CPHEATER055A00 5.0 0 X X X X X
CPHEATER056A00 10.0 0 X X X X X
CPHEATER057A00 15.0 0 X X X X
CPHEATER059A00 20.0 6 X X X
NOTE: Electric heaters are rated at 240v. Refer to Multiplication Factors table for other voltages.
X = Approved combinations.
Minimum Airflow for Reliable Electric Heater Operation (CFM)
UNIT SIZE 024 030 036 042 048 060
AIRFLOW 750 1000 1250 1400 1500 1800
50XP
7
ECONOMIZER
COIL
FILTER
SIDE VIEW
CAULK BOTTOM CORNER
OF ECONOMIZER
ON EACH SIDE
BASE
COIL
FLANGE
ON BASE
DET
AIL
ECONOMIZER
FI LTER
FILTER ACCESS DOOR
(HORIZONTAL
APPLICATION ONLY.)
DO NOT REMOVE
FROM DOWNFLOW
DISCHARGE.
REPLACEMENT
PANEL
HOLE FOR
ECONOMIZER
WIRING HARDNESS
DOOR
LATCH ANGLE
HINGED FILTER
ACCESS DOOR
INSTALL
FILTER ACCESS
DOOR STICKER
ALUMINUM
FILTER
RAINHOOD
11 13/32”
17 13/32
16 1/4”
EV APORATOR
COIL
TOP FILTER RACK
BEND FLANGE AT 90˚-SCREW TO
DIVIDER WITH 1-IN. SCREW
BOTTOM FILTER
RACK
DAMPER
BLADE
MANUAL OUTSIDE
AIR HOOD
REPLACEMENT
PANEL
ECONOMIZER
FILTER RACK
MANUAL OUTSIDE AIR DAMPER
A05239
50XP
8
UNIT DIMENSIONS -- 50XP024--036
A08452
50XP
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