48XL---09PD - County Heating & Air Conditioning Inc

48XL---A
Infinity®
15 SEER Single---Packaged Air Conditioner and
Gas Furnace System with Puron® (R---410A) Refrigerant
Single Phase
2---5 Nominal Tons (Sizes 24---60)
Product Data
Innovative Unit Base Design
On the inside a high--tech composite material will not rust and
incorporates a sloped drain pan which improves drainage and helps
inhibit mold, algae and bacterial growth. On the outside metal base
rails provide added stability as well as easier handling and rigging.
Variable--Speed Blower motors provide better comfort and
energy efficiency. Economical constant airflow 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 compact, fully self--contained,
combination gas heating/electric cooling unit that is pre--wired,
pre--piped, and pre--charged for minimum installation expense.
These units are available in a variety of standard and optional
heating/cooling size combinations. Units are lightweight and install
easily on a rooftop or at ground level. The high tech composite unit
base eliminates rust problems associated with ground level
applications.
A09032
Fig. 1 -- Unit 48XL--A
Single--Packaged Products with Energy--Saving Features and
Puron® refrigerant.
S Direct Spark Ignition
S Up to 15.5 SEER
S Up to 12.0 EER
S Meets Energy Star requirements
S Up to 80.1% AFUE
S Low Sound Levels
S Variable--Speed Blower (Standard)
S Factory Installed TXV
S Stainless Steel Heat Exchanger
S Two Stage Cooling and Heating
S Advanced Dehumidification Feature
FEATURES/BENEFITS
One--piece heating and cooling units with low sound levels, easy
installation, low maintenance, and dependable performance.
Puron® Environmentally--Sound Refrigerant is Carrier’s unique
refrigerant designed to help protect the environment. Puron
refrigerant 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.
IdealHumidityt Technology featuring Infinityr control and
Variable--Speed Blower motor and two--stages of cooling and
heating provide greater comfort, humidity control, and energy
efficiency.
Convertible duct configuration
Unit is designed for use in either downflow or horizontal
applications. Each unit is converted from horizontal to downflow
and includes horizontal duct covers. Downflow operation is
provided in the field to allow vertical ductwork connections. The
basepan seals on the bottom openings to ensure a positive seal in
the vertical airflow mode.
Efficient operation
High--efficiency design with SEERs (Seasonal Energy Efficiency
Ratio) of up to 15.5 and AFUE (Annual Fuel Utilization
Efficiency) ratings as high at 80.1%.
Energy--saving, direct spark ignition saves gas by operating only
when the room thermostat calls for heating. Standard units are
furnished with natural gas controls. A low--cost field installed kit
for propane conversion is available for all units.
48XLN--A units are dedicated Low NOx units designed for
California installations. These models meet the California
maximum oxides of nitrogen (NOx) emissions requirement of 40
nanograms/joule or less as shipped from the factory and MUST be
installed in California Air Quality Management Districts or any
other location where a Low NOx rule exists.
Durable, dependable components
Compressors have two stages of cooling and are designed for high
efficiency. Each compressor is hermetically sealed against
contamination to help promote longer life and dependable
operation. Vibration isolation provides quiet operation.
Compressors have internal high--pressure and overcurrent
protection.
Monoport inshot burners produce precise air--to--gas mixture,
which provides for clean and efficient combustion. The large
monoport on the inshot (or injection type) burners seldom, if ever,
1
48XL-- A
requires cleaning. All gas furnace components are accessible in one
compartment.
Turbo--tubulart heat exchangers are constructed of 409
stainless steel for corrosion resistance and optimum heat transfer
for improved efficiency. The tubular design permits hot gases to
make multiple passes across the path of the supply air.
In addition, dimples located on the heat exchanger walls force the
hot gases to stay in close contact with the walls, improving heat
transfer.
Full featured ECM Motor is standard on all 48XL--A models.
Direct--drive, PSC (Permanent Split Capacitor) condenser fan
motors are designed to help reduce energy consumption and
provide for cooling operation down to 55°F (12.7_C) outdoor
temperature. Low--ambient cooling is available below 55°F
(12.7_C) when low--ambient cooling is enabled in the User
Interface (UI). Motormaster® II low--ambient kit is not required.
Infinity User Interface is designed to work as a system with
Carrier’s single--packaged product.
Refrigerant system is designed to provide dependability. Liquid
refrigerant filter driers are used to promote clean, unrestricted
operation. Each unit leaves the factory with a full Puron 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.
High-- and Low--Pressure Switches give added safety and
reliability to the compressor.
Indoor and outdoor coils are computer designed for optimum
heat transfer and cooling efficiency. The indoor coil is fabricated
from copper tube and aluminum fins and is located inside the unit
for protection against damage. The outdoor 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.
Low sound ratings ensure a quiet indoor and outdoor
environment with sound ratings as low as 75 dBA.
Easy to service cabinets provide easy 3 panel accessibility to
serviceable components during maintenance and installation. The
basepan, with integrated drain pan, provides easy ground level
installation with a mounting pad. A nesting feature ensures a
positive basepan to roof curb seal when the unit is roof mounted. A
convenient 3/4--in. (19 mm) wide perimeter flange makes frame
mounting on a rooftop easy.
Infinity Furnace Control board provides safe and efficient
control of heating and simplifies trouble--shooting through its
built--in diagnostic function.
Heating
S Reliable direct spark ignition system
S Two--speed PSC inducer motor with ball bearings
S Low stage heating delivers 65% of high--stage capacity
Cabinets are constructed of heavy--duty, phosphated, zinc--coated,
pre--painted steel capable of withstanding 500 hrs of salt spray.
Interior surfaces of the evaporator and electric heater compartments
are insulated with foil--faced insulation, 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 unit, which is provided with an external
drain.
Louvered grille provides hail and vandalism protection for the
coil.
2
TABLE OF CONTENTS
48XL-- A
FEATURES/BENEFITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--2
MODEL NUMBER NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
AHRI CAPACITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--6
OPTIONS AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
BASE UNIT DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8--9
ACCESSORY DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SELECTION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
PERFORMANCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12--20
TYPICAL PIPING AND WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TYPICAL WIRING SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23--26
CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28--29
MODEL NUMBER NOMENCLATURE
48XL
---
A
24
040
3
--- ---
0
Type of Unit
48XL --- Single Packaged
Air Conditioner
and Gas Furnace
System
Options
Low NOx Indicator
--- Standard
N Low NOx
TP --- Base unit with tin plated indoor coil hairpins
See Price Page for full list of factory options.
Only used if ordering an option
Major Series
Nominal Cooling Capacity
24 --- 2.0 Tons
30 --- 2.5 Tons
36 --- 3.0 Tons
42 --- 3.5 Tons
48 --- 4.0 Tons
60 --- 5.0 Tons
Heat Input Size (Btuh)
040 --- 40,000
060 --- 60,000
090 --- 90,000
115 --- 115,000
130 --- 130,000
Minor Series
Electrical Supply
3 --- 208/230--- 1--- 60
Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.
3
AHRI* CAPACITIES
Cooling Capacities, Efficiencies
Unit 48XL-- A
48XL-- A
24040
24060
30040
30060
36060
36090
42060
42090
48090
48115
48130
60090
60115
60130
Nominal Tons
Standard CFM
(High / Low Stage)
Net Cooling
Capacities (Btuh)
(High / Low Stage)
EER @A**
SEER†
2
800 / 600
22,600 / 17,600
11.4
15.5
2--1/2
1000 / 700
28,600 / 21,400
11.6
15.0
3
1200 / 850
34,600 / 24,400
12
15.0
3--1/2
1400 / 975
40,500 / 29,000
11.6
15.0
4
1600 / 1100
46,000 / 33,400
11
15.0
5
1750 / 1200
57,000 / 40,500
11
14.5
Heating Capacities and Efficiencies
Unit 48XL-- A
24040
30040
24060
30060
36060
42060
36090
42090
48090
60090
48115
60115
48130
60130
Heating Input (Btuh)
High/Low
Output Capacity
(Btuh)
High / Low
Temperature Rise
Range
High °F (°C)
Temperature Rise
Range
Low °F (°C)
AFUE
40,000 / 26,000
32,000 / 21,000
20--50 (11--28)
15--45 (8--25)
78
60,000 / 39,000
49,000 / 31,000
25--55 (14--31)
25--55 (14--31)
78.6
90,000 / 58,500
74,000 / 47,000
35--65 (19--36)
35--65 (19--36)
79.2
115,000 / 75,000
93,000 / 61,000
30--60 (17--33)
30--60 (17--33)
80.1
130,000 / 84,500
103,000 / 68,000
35--65 (19--36)
35--65 (19--36)
80.0
LEGEND
db—Dry Bulb
SEER—Seasonal Energy Efficiency Ratio
wb—Wet Bulb
COP—Coefficient of Performance
HSPF—Heating Season Performance Factor
* Air Conditioning, Heating & Refrigeration Institute.
** Ratings are net values, reflecting the effects of circulating fan heat. Ratings are based on:
Cooling Standard: 80°F (26.6_C) db, 67°F (19.4_C) wb indoor entering air temperature and 95°F (35_C) db outdoor entering air temperature.
{ Rated in accordance with U.S. Government DOE Department of Energy) test procedures and/or AHRI Standards 210/240.
Note: Ratings contained in this document are subject to change at any time. Always refer to the AHRI directory (www.ahridirectory.org) for the most up to date
ratings information.
4
PHYSICAL DATA
UNIT SIZE
NOMINAL COOLING CAPACITY (ton)
NOMINAL HEATING INPUT (Btu/hr)
(kg)
24060
30040
30060
36060
36090
42060
2
2
2--- 1/2
2--- 1/2
3
3
3--- 1/2
3--- 1/2
40,000
60,000
40,000
60,000
60,000
90,000
60,000
90,000
426
193
431
196
433
196
438
199
522
237
530
240
544
247
552
250
9.5
4.3
9.5
4.3
13.8
6.3
13.8
6.3
2--- Stage Scroll
1
COMPRESSORS
Quantity
REFRIGERANT: PURON (R--- 410A)
Quantity (lb)
(kg)
REFRIGERANT METERING DEVICE
10.1
4.6
10.1
4.6
11.3
5.1
11.3
5.1
2 Ton
2 Ton
3 Ton
3 Ton
3 Ton
3 Ton
4 Ton
4 Ton
2...21
13.6
2...21
13.6
2...21
15.3
2...21
15.3
2...21
17.5
2...21
17.5
2...21
19.4
2...21
19.4
2700
22
559
1/8 (825)
2700
22
559
1/8 (825)
2700
22
559
1/8 (825)
2700
22
559
1/8 (825)
2800
22
559
1/8 (825)
2800
22
559
1/8 (825)
2800
22
559
1/8 (825)
2800
22
559
1/8 (825)
3...17
3.7
3...17
3.7
3...17
3.7
3...17
3.7
3...17
4.7
3...17
4.7
3...17
4.7
3...17
4.7
TXV
Size
OUTDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
OUTDOOR FAN
Nominal Cfm
Diameter (in.)
(mm)
Motor Hp (Rpm)
INDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
INDOOR FAN
Nominal Airflow (Cfm)
Comfort
Efficiency
Max
Furnace (gas ht.) airflow---Low Stage
Furnace (gas ht.) airflow---High Stage
Size (in.)
(mm)
Motor HP (RPM)
FURNACE SECTION*
Burner Orifice No.
Natural Gas Qty...Drill Size (Factory Installed)
Propane Gas Qty...Drill Size
HIGH--- PRESSURE SWITCH (psig)
Reset (Auto)
Variable based on Comfort Roll back (see User Interface instructions for more information).
700
700
875
875
1050
1050
1225
1225
800
800
1000
1000
1200
1200
1400
1400
475
727
475
727
745
875
745
875
844
1120
844
1120
1120
1410
1120
1410
10x10
10x10
10x10
10x10
11x10
11x10
11x10
11x10
254x254
254x254
254x254
254x254
279x254
279x254
279x254
279x254
1/2
1/2
1/2
1/2
3/4
3/4
3/4
3/4
2...44
2...55
3...44
3...55
2...44
2...55
Cut--- out
3...44
3...55
3...44
3...55
3...38
3...53
3...44
3...55
3...38
3...53
670 ±10
470 ± 25
HIGH--- PRESSURE SWITCH 2 (psig)
(Compressor Solenoid)
Cut--- out
Reset (Auto)
565 ± 15
455 ± 15
LOSS--- OF--- CHARGE /
LOW--- PRESSURE SWITCH
(Liquid Line) (psig)
Cut--- out
Reset (auto)
RETURN--- AIR FILTERS Throwaway†
(in.)
(mm)
42090
23 ± 5
55 ± 5
20x24x1
508x610x25
24x30x1
610x762x25
Continued next page.
5
24x36x1
610x914x25
48XL-- A
SHIPPING WEIGHT (lb)
24040
PHYSICAL DATA (CONT)
UNIT SIZE
NOMINAL COOLING CAPACITY (ton)
NOMINAL HEATING INPUT (Btu/hr)
SHIPPING WEIGHT (lb)
(kg)
48090
48115
48130
60090
60115
4
4
4
5
5
5
90,000
115,000
130,000
90,000
115,000
130,000
558
253
558
253
558
253
609
276
609
276
609
276
15.8
7.2
15.8
7.2
15.8
7.2
2--- Stage Scroll
1
COMPRESSORS
Quantity
REFRIGERANT: PURON (R--- 410A)
Quantity (lb)
(kg)
REFRIGERANT METERING DEVICE
15.3
6.9
15.3
6.9
15.3
6.9
4 Ton
4 Ton
4 Ton
5 Ton
5 Ton
5 Ton
3300
22
559
1/4 (1100)
3300
22
559
1/4 (1100)
3300
22
559
1/4 (1100)
3300
22
559
1/3 (1110)
3300
22
559
1/3 (1110)
3300
22
559
1/3 (1110)
2...21
19.4
2...21
19.4
2...21
19.4
2...21
23.3
2...21
23.3
2...21
23.3
3...17
5.7
3...17
5.7
3...17
5.7
4...17
5.7
4...17
5.7
4...17
5.7
TXV
Size
48XL-- A
60130
OUTDOOR FAN
Nominal Cfm
Diameter (in.)
(mm)
Motor Hp (Rpm)
OUTDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
INDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
INDOOR FAN
Nominal Airflow (Cfm)
Comfort
Variable based on Comfort Roll back (see User Interface instructions for more information).
Efficiency
1400
1400
1400
1750
1750
1750
Max
1600
1600
1600
2000
2000
2000
Furnace (gas ht.) airflow--- Low Stage
815
1215
1255
845
1215
1255
Furnace (gas ht.) airflow--- High Stage
1385
1885
1875
1300
1910
1920
11x10
279x254
11x10
279x254
11x10
279x254
11x10
279x254
11x10
279x254
11x10
279x254
3/4
3/4
3/4
1
1
1
3...38
3...53
3...33
3...51
3...31
3...49
3...38
3...53
3...33
3...51
3...31
3...49
Size (in.)
(mm)
Motor HP (RPM)
FURNACE SECTION*
Burner Orifice No.
Natural Gas Qty...Drill Size (Factory Installed)
Propane Gas Qty...Drill Size
HIGH--- PRESSURE SWITCH (psig)
Cut--- out
Reset (Auto)
670 ± 10
470 ± 25
HIGH--- PRESSURE SWITCH 2 (psig)
(Compressor Solenoid)
Cut--- out
Reset (Auto)
565 ± 15
455 ± 15
LOSS--- OF--- CHARGE /
LOW--- PRESSURE SWITCH
(Liquid Line) (psig)
Cut--- out
Reset (auto)
23 ± 5
55 ± 5
RETURN--- AIR FILTERS Throwaway† (in.)
(mm)
24x36x1
610x914x25
*Based on altitude of 0 to 2000 ft (0 to 610 m).
{Recommended filter sizes for field---installed air filter grilles mounted on the wall or ceiling of the conditioned structure. Required filter sizes shown are based on
the larger of the AHRI (Air Conditioning, Heating 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.
A--WEIGHTED SOUND POWER LEVEL (dBA)
MODEL
48XL
24
30
36
42
48
60
STANDARD
RATING
(dBA)
75
75
75
78
78
78
TYPICAL OCTAVE BAND SPECTRUM (dBA) (without tone adjustment)
125
250
500
1000
2000
4000
8000
58.8
58.8
60.7
56.7
62.4
63.5
63.5
63.5
63.3
62.8
69.9
67.6
67.2
67.2
66.8
67.8
71.3
71.8
66.9
66.9
66.5
67.4
73.4
75.5
63.7
63.7
64.2
63.7
70.0
71.0
58.3
58.3
60.3
57.7
66.3
68.1
50.0
50.0
53.0
50.8
60.1
59.9
NOTE: Tested in accordance with AHRI Standard 270 (not listed in AHRI).
6
OPTIONS AND ACCESSORIES
DESCRIPTION
Coil Options
Corporate Thermostats
Filter Rack
Flat Roof Curbs
Flue Discharge Deflector
High Altitude Propane Conversion Kit
Manual Outside Air Damper
Natural to Propane Gas Conversion Kit
Propane to Natural Gas Conversion Kit
Square--- to--- Round Duct Transition Kit
Base unit with tin plated indoor coil hairpins
Thermostats provide control for the system heating and
cooling functions.
Filter Rack features easy installation, serviceability, and
high--- filtering performance for vertical applications.
Includes 1--- in. filter.
Flat Roof Curbs in both 11--- in (279 mm) and 14--- in. (356
mm) sizes are available for roof mounted applications.
Directs flue gas exhaust 90 degrees upward from current
discharge.
High Altitude Propane Conversion Kit is for use at 2001 to
6000 ft. (611--- 1829 m) above sea level. Kit consists of
propane gas orifices that compensate for gas heat operation at high altitude.
Manual Outside Air Damper includes hood and filter rack
with adjustable damper blade for up to 25% outdoor air.
Natural to Propane Gas Conversion Kit allows for conversion from natural gas to propane gas (0--- 2000 ft) (0--- 610
m)
Propane to Natural Gas Conversion Kit allows for conversion from propane to natural gas for altitudes of 0--- 2000 ft
(0--- 610 m)
Square--- to--- Round Duct Transition Kit enable 24--- 48 size
units to be fitted to 14 in. (356 mm) round ductwork.
FILTER RACK
FACTORY
INSTALLED
OPTION
X
FIELD
INSTALLED
ACCESSORY
X
X
X
X
X
X
X
48XL-- A
ITEM
X
X
MANUAL OUTSIDE AIR DAMPER
FILTER RACK
MANUAL OUTSIDE AIR DAMPER
BEND FLANGE AT 90° -SCREW TO
DIVIDER WITH 1-IN. SCREW
REPLACEMENT
PANEL
TOP FILTER RACK
MANUAL OUTSIDE
AIR HOOD
EV APORATOR
COIL
DAMPER
BLADE
A09235
BOTTOM FILTER
RACK
A09236
7
48XL-- A
48XL--A24--30 UNIT DIMENSIONS
A09521
8
48XL-- A
48XL--A36--60 UNIT DIMENSIONS
A09522
9
ACCESSORY DIMENSIONS
Dashed lines show cross support
location for large basepan units.
B
G
HVAC unit
basepan
HVAC unit
base rails
C
Sealing
Gasket
Roofcurb
A
Anchor screw
H
F
Wood nailer*
Flashing field
supplied
Roofcurb*
Insulation
(field supplied)
Roofing material
field supplied
48XL-- A
E
D
Cant strip
field supplied
SMALL/COMMON CURB
A09413
*Provided with roofcurb
A09090
ROOF CURB DETAIL
B
C
G
SUPPLY
AIR
SMALL
BASE
UNIT
RETURN
AIR
LARGE
BASE
UNIT
H
F A
E
D
UNIT PLACEMENT ON
COMMON CURB
SMALL OR LARGE BASE UNIT
A09415
LARGE CURB
A09094
A09414
UNIT
SIZE
CATALOG
NUMBER
Small
or
Large
CPRFCURB010A00
Large
CPRFCURB011A00
CPRFCURB012A00
CPRFCURB013A00
A
IN.
(mm)
11
(279)
14
(356)
11
(279)
14
(356)
B (small / common
base)
IN. (mm)*
B (large
base)
IN. (mm)*
C
IN.
(mm)
D
IN.
(mm)
E
IN.
(mm)
F
IN.
(mm)
32.4
(822)
10 (254)
14 (356)
16
(406)
47.8
(1214)
NOTES:
1. Roof curb must be set up for unit being installed.
2. Seal strip must be applied, as required, to unit being installed.
3. Roof curb is made of 16--gauge steel.
4. Attach ductwork to curb (flanges of duct rest on curb).
5. Insulated panels: 1--in. (25.4 mm) thick fiberglass 1 lb. density.
10
H
IN. (mm)
30.6 (778)
2.7 (69)
43.9
(1116)
14 (356)
G
IN. (mm)
46.1 (1170)
42.2 (1072)
SELECTION PROCEDURE
Determine cooling and heating requirements at design
conditions:
Select heating capacity of unit to provide design condition requirement
Given:
REQUIRED COOLING CAPACITY (TC) . . . . . . 34,500 BTUH
SENSIBLE HEAT CAPACITY (SHC) . . . . . . . . . 42,000 BTUH
REQUIRED HEATING CAPACITY (SHC) . . . . . 42,000 BTUH
CONDENSER ENTERING AIR TEMPERATURE 95°F (35_C)
INDOOR--AIR TEMPERATURE . . . 80°F (26.6_C) EDB, 67°F
(19.4_C) EWB
EVAPORATOR AIR QUANTITY . . . . . . . . . . . . . . . 1200 CFM
ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . 230--1--60
In the Heating Capacities and Efficiencies table on page 4, note that
the unit 36060 will provide 49,000 Btuh of capacity with an input
of 60,000 Btuh.
Select unit that corresponds to power source available
The Electrical Data table shows that the unit is designed to operate
at 208/230--1--60.
Select unit based on required cooling capacity
48XL-- A
Enter Net Cooling Capacities table at condenser entering
temperature of 95°F (35_C). The 36 unit at 1200 cfm and 67°F
(19.4_C) ewb (entering wet bulb) will provide a total capacity of
34,600 Btuh and a SHC of 24,200 Btuh. Calculate SHC correction,
if required, using Note 4 under Cooling Capacities tables.
11
12
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
()19.4
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
75 (23.8)
18.69
15.18
15.72
12.75
22.76
20.16
16.20
16.81
13.43
22.40
22.85
24.66
27.16
22.76
22.97
23.39
25.22
27.77
11.75
12.26
10.05
17.52
15.66
12.58
13.14
10.61
19.23
21.48
17.52
17.71
18.10
19.75
22.06
14.47
17.20
17.61
16.65
16.65
Capacity
MBtuh
Total
Sens
75 (23.8)
21.77
21.77
Capacity
MBtuh
Total
Sens
See page 18 for cooling notes.
600
525
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A24 Low Cool
800
700
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A24 High Cool
1.11
1.09
1.08
1.08
1.08
1.09
1.08
1.06
1.06
1.05
Total
System
KW
1.70
1.67
1.64
1.64
1.64
1.67
1.64
1.62
1.61
1.61
Total
System
KW
85 (29.4)
85 (29.4)
12.96
16.32
15.71
21.76
21.81
12.28
15.24
14.70
18.21
20.88
20.93
18.71
17.12
16.78
16.77
20.41
18.23
16.69
16.29
15.95
10.21
12.74
12.18
16.75
16.77
9.66
11.87
11.36
14.07
15.95
Capacity
MBtuh
Total
Sens
26.37
23.94
22.19
21.84
21.81
25.83
23.44
21.71
21.29
20.88
Capacity
MBtuh
Total
Sens
Cooling Extended Performance Table
1.26
1.24
1.23
1.23
1.23
1.24
1.22
1.21
1.21
1.20
Total
System
KW
1.88
1.85
1.83
1.82
1.82
1.86
1.83
1.80
1.80
1.79
Total
System
KW
12.48
15.82
15.21
20.81
20.81
11.80
14.75
14.21
17.70
19.95
2.09
2.05
2.03
2.03
2.03
2.06
2.03
2.01
2.00
2.00
Total
System
KW
105 (40.5)
23.35
21.18
19.62
19.74
19.74
22.94
20.79
19.25
18.95
18.94
11.95
15.30
14.69
19.74
19.74
11.29
14.24
13.70
18.95
18.94
Capacity
MBtuh
Total
Sens
2.31
2.28
2.26
2.26
2.26
2.29
2.26
2.23
2.23
2.23
Total
System
KW
19.72
17.60
16.09
15.96
15.96
19.26
17.18
15.70
15.34
15.21
9.80
12.32
11.76
15.96
15.96
9.26
11.47
10.96
13.65
15.21
Capacity
MBtuh
Total
Sens
95 (35)
1.43
1.41
1.39
1.39
1.39
1.41
1.39
1.38
1.37
1.37
Total
System
KW
18.41
16.41
14.98
15.10
15.10
18.02
16.05
14.64
14.40
14.40
9.36
11.88
11.32
15.10
15.10
8.84
11.03
10.53
14.40
14.40
Capacity
MBtuh
Total
Sens
105 (40.5)
1.62
1.60
1.59
1.59
1.59
1.60
1.58
1.57
1.57
1.57
Total
System
KW
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
24.90
22.60
20.94
20.81
20.81
24.42
22.15
20.52
20.13
19.95
Capacity
MBtuh
Total
Sens
95 (35)
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
PERFORMANCE DATA--STANDARD ECM INDOOR MOTOR
115 (46.1)
115 (46.1)
11.41
14.74
14.14
18.58
18.58
10.76
13.70
13.16
17.86
17.86
17.03
15.14
13.80
14.15
14.15
16.69
14.83
13.50
13.52
13.52
8.91
11.41
10.85
14.15
14.15
8.39
10.58
10.07
13.52
13.52
Capacity
MBtuh
Total
Sens
21.66
19.67
18.22
18.58
18.58
21.33
19.34
17.90
17.86
17.86
Capacity
MBtuh
Total
Sens
48XL-- A
1.85
1.83
1.81
1.82
1.82
1.83
1.81
1.80
1.80
1.80
Total
System
KW
2.57
2.53
2.51
2.51
2.51
2.54
2.51
2.48
2.48
2.48
Total
System
KW
125 (51.6)
125 (51.6)
11.05
14.14
13.54
17.29
17.29
10.18
13.12
12.58
16.66
16.66
15.51
13.76
12.51
13.12
13.11
15.24
13.50
12.27
12.55
12.55
8.41
10.91
10.35
13.12
13.11
7.90
10.09
9.58
12.55
12.55
Capacity
MBtuh
Total
Sens
20.60
18.01
16.69
17.29
17.29
19.57
17.74
16.42
16.66
16.66
Capacity
MBtuh
Total
Sens
2.11
2.09
2.08
2.09
2.09
2.09
2.07
2.06
2.07
2.07
Total
System
KW
2.57
2.82
2.79
2.80
2.80
2.83
2.79
2.77
2.77
2.77
Total
System
KW
13
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
75 (23.8)
23.85
19.34
19.99
16.13
29.10
25.68
20.61
21.34
16.96
28.72
29.28
31.48
34.49
29.10
29.40
29.91
32.13
35.18
20.32
17.65
14.40
14.96
12.26
21.32
19.04
15.36
15.98
12.91
20.32
21.08
21.55
23.40
25.95
21.32
21.67
22.13
24.00
26.61
Capacity
MBtuh
Total
Sens
75 (23.8)
27.90
27.90
Capacity
MBtuh
Total
Sens
See page 18 for cooling notes.
700
615
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A30 Low Cool
1000
875
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A30 High Cool
1.36
1.34
1.32
1.31
1.31
1.35
1.32
1.30
1.30
1.29
Total
System
KW
2.18
2.14
2.10
2.10
2.09
2.14
2.10
2.07
2.06
2.05
Total
System
KW
85 (29.4)
85 (29.4)
16.32
20.69
19.98
27.75
27.84
15.50
19.36
18.72
23.21
26.73
25.22
22.76
20.98
20.56
20.44
24.65
22.22
20.47
20.01
19.50
12.42
15.50
14.89
18.54
20.44
11.79
14.49
13.94
17.18
19.50
Capacity
MBtuh
Total
Sens
33.29
30.42
28.33
27.90
27.84
32.69
29.85
27.78
27.25
26.73
Capacity
MBtuh
Total
Sens
Cooling Extended Performance Table
1.55
1.53
1.51
1.50
1.50
1.53
1.51
1.49
1.49
1.48
Total
System
KW
2.40
2.36
2.32
2.32
2.32
2.36
2.32
2.29
2.28
2.27
Total
System
KW
15.65
20.02
19.31
26.48
26.48
14.85
18.70
18.07
22.53
25.47
2.65
2.60
2.57
2.56
2.56
2.61
2.56
2.53
2.52
2.52
Total
System
KW
105 (40.5)
29.11
26.64
24.86
25.00
25.00
28.70
26.23
24.46
24.09
24.09
14.94
19.30
18.60
25.00
25.00
14.15
18.00
17.38
24.09
24.09
Capacity
MBtuh
Total
Sens
2.92
2.87
2.83
2.84
2.84
2.88
2.83
2.80
2.79
2.79
Total
System
KW
23.71
21.40
19.74
19.46
19.46
23.20
20.93
19.28
18.86
18.60
11.90
14.98
14.38
19.46
19.46
11.28
13.99
13.44
16.67
18.60
Capacity
MBtuh
Total
Sens
95 (35)
1.76
1.74
1.72
1.72
1.72
1.75
1.72
1.70
1.70
1.70
Total
System
KW
22.06
19.91
18.38
18.38
18.38
21.63
19.51
17.99
17.62
17.60
11.34
14.42
13.83
18.38
18.38
10.73
13.44
12.90
17.58
17.60
Capacity
MBtuh
Total
Sens
105 (40.5)
2.01
1.99
1.97
1.97
1.97
2.00
1.97
1.95
1.95
1.95
115 (46.1)
115 (46.1)
14.18
18.53
17.84
23.34
23.34
13.40
17.25
16.64
22.56
22.56
20.25
18.29
16.90
17.17
17.17
19.91
17.97
16.58
16.49
16.20
10.74
13.82
13.24
17.17
17.17
10.14
12.85
12.33
16.49
16.20
Capacity
MBtuh
Total
Sens
26.76
24.51
22.90
23.34
23.34
26.43
24.19
22.58
22.56
22.56
Capacity
MBtuh
Total
Sens
48XL-- A
Total
System
KW
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
31.27
28.60
26.66
26.48
26.48
30.77
28.11
26.18
25.70
25.47
Capacity
MBtuh
Total
Sens
95 (35)
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
PERFORMANCE DATA--STANDARD ECM INDOOR MOTOR
2.30
2.28
2.26
2.26
2.26
2.28
2.26
2.24
2.24
2.21
Total
System
KW
3.22
3.17
3.13
3.15
3.15
3.18
3.13
3.10
3.10
3.10
Total
System
KW
125 (51.6)
125 (51.6)
13.36
16.98
17.00
21.47
21.47
13.36
16.42
15.82
20.81
20.81
18.28
16.52
15.28
15.82
15.82
18.01
16.26
15.02
15.23
15.23
10.09
13.17
12.60
15.82
15.82
9.51
12.24
11.71
15.23
15.23
Capacity
MBtuh
Total
Sens
24.19
22.47
20.75
21.47
21.47
26.31
21.92
20.50
20.81
20.81
Capacity
MBtuh
Total
Sens
2.63
2.61
2.60
2.60
2.60
2.62
2.60
2.58
2.58
2.58
Total
System
KW
3.55
3.51
3.47
3.49
3.49
3.19
3.47
3.43
3.44
3.44
Total
System
KW
14
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
75 (23.8)
28.72
23.25
24.04
18.41
35.06
30.91
24.79
25.68
19.31
34.47
35.12
37.76
42.16
35.06
35.29
35.86
38.52
42.99
23.27
20.06
16.28
16.96
13.86
24.45
21.68
17.42
18.17
14.64
23.27
23.91
24.46
26.63
29.67
24.45
24.61
25.11
27.33
30.44
Capacity
MBtuh
Total
Sens
75 (23.8)
33.64
33.64
Capacity
MBtuh
Total
Sens
See page 18 for cooling notes.
850
745
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A36 Low Cool
1200
1050
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A36 High Cool
1.53
1.50
1.49
1.48
1.48
1.51
1.48
1.47
1.46
1.46
Total
System
KW
2.41
2.36
2.33
2.33
2.32
2.37
2.32
2.29
2.29
2.28
Total
System
KW
85 (29.4)
85 (29.4)
18.61
24.97
24.08
33.64
33.64
17.73
23.34
22.56
28.00
32.32
28.89
25.92
23.80
23.43
23.43
28.20
25.29
23.21
22.70
22.34
14.12
17.64
16.89
23.43
23.43
13.35
16.45
15.77
19.54
22.34
Capacity
MBtuh
Total
Sens
40.85
36.62
34.09
33.64
33.64
40.12
35.94
33.44
32.83
32.32
Capacity
MBtuh
Total
Sens
Cooling Extended Performance Table
1.71
1.69
1.68
1.67
1.67
1.70
1.67
1.66
1.65
1.65
Total
System
KW
2.66
2.61
2.58
2.58
2.58
2.62
2.57
2.54
2.54
2.53
Total
System
KW
17.87
24.22
23.34
32.12
32.12
17.01
22.61
21.83
27.24
30.90
2.93
2.88
2.85
2.85
2.85
2.90
2.84
2.81
2.81
2.81
Total
System
KW
105 (40.5)
36.13
32.43
30.23
30.46
30.46
35.58
31.91
29.73
29.36
29.36
17.09
23.43
22.56
30.46
30.46
16.24
21.83
21.07
29.36
29.36
Capacity
MBtuh
Total
Sens
3.24
3.19
3.15
3.16
3.16
3.20
3.15
3.12
3.11
3.11
Total
System
KW
27.21
24.40
22.39
22.33
22.33
26.61
23.85
21.87
21.41
21.31
13.55
17.08
16.34
22.33
22.33
12.81
15.90
15.23
18.97
21.31
Capacity
MBtuh
Total
Sens
95 (35)
1.93
1.91
1.89
1.89
1.89
1.91
1.89
1.87
1.87
1.87
Total
System
KW
25.40
22.76
20.88
21.12
21.11
24.89
22.28
20.42
20.19
20.19
12.96
16.48
15.74
21.12
21.11
12.23
15.32
14.65
20.19
20.19
Capacity
MBtuh
Total
Sens
105 (40.5)
2.17
2.15
2.14
2.14
2.14
2.16
2.14
2.12
2.12
2.12
Total
System
KW
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
38.57
34.60
32.22
32.12
32.12
37.93
34.00
31.65
31.11
30.90
Capacity
MBtuh
Total
Sens
95 (35)
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
PERFORMANCE DATA--STANDARD ECM INDOOR MOTOR
115 (46.1)
115 (46.1)
16.25
22.57
21.71
28.63
28.63
15.43
21.00
20.25
27.65
27.65
23.45
20.99
19.24
19.80
19.80
23.01
20.58
18.85
18.95
18.95
12.33
15.84
15.10
19.80
19.80
11.60
14.69
14.03
18.95
18.95
Capacity
MBtuh
Total
Sens
33.48
30.06
28.05
28.63
28.63
33.02
29.65
27.64
27.65
27.65
Capacity
MBtuh
Total
Sens
48XL-- A
2.46
2.44
2.43
2.44
2.44
2.45
2.43
2.41
2.41
2.41
Total
System
KW
3.58
3.53
3.49
3.50
3.50
3.54
3.49
3.45
3.46
3.46
Total
System
KW
125 (51.6)
125 (51.6)
15.35
21.64
20.78
26.56
26.56
14.53
20.10
19.35
25.71
25.71
21.30
19.06
17.46
18.32
18.32
20.96
18.72
17.14
17.58
17.58
11.65
15.15
14.42
18.32
18.32
10.93
14.02
13.36
17.58
17.58
Capacity
MBtuh
Total
Sens
30.56
27.47
25.66
26.56
26.56
30.21
27.14
25.33
25.71
25.71
Capacity
MBtuh
Total
Sens
2.80
2.78
2.77
2.78
2.78
2.79
2.77
2.75
2.76
2.76
Total
System
KW
3.96
3.90
3.87
3.89
3.89
3.92
3.87
3.83
3.84
3.84
Total
System
KW
15
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
75 (23.8)
37.05
29.94
30.93
24.77
41.96
39.80
31.90
33.01
26.04
41.24
42.00
45.04
49.21
41.96
42.17
42.81
45.87
50.09
28.20
24.09
19.56
20.31
16.51
29.53
25.99
20.89
21.71
17.40
28.20
28.99
29.61
32.05
35.41
29.53
29.77
30.34
32.81
36.21
Capacity
MBtuh
Total
Sens
75 (23.8)
40.34
40.34
Capacity
MBtuh
Total
Sens
See page 18 for cooling notes.
975
855
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A42 Low Cool
1400
1225
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A42 High Cool
1.91
1.91
1.90
1.90
1.90
1.89
1.89
1.89
1.89
1.89
Total
System
KW
2.96
2.89
2.84
2.83
2.82
2.91
2.84
2.78
2.77
2.76
Total
System
KW
85 (29.4)
85 (29.4)
25.02
31.98
30.89
40.04
40.04
23.77
29.93
28.96
36.02
38.56
34.17
31.00
28.69
28.23
28.23
33.47
30.33
28.04
27.46
27.00
16.72
21.04
20.23
28.23
28.23
15.84
19.65
18.92
23.43
27.00
Capacity
MBtuh
Total
Sens
47.23
43.30
40.45
40.04
40.04
46.48
42.59
39.74
39.06
38.56
Capacity
MBtuh
Total
Sens
Cooling Extended Performance Table
2.12
2.12
2.12
2.12
2.12
2.10
2.11
2.11
2.11
2.11
Total
System
KW
3.23
3.15
3.10
3.10
3.10
3.17
3.10
3.05
3.04
3.03
Total
System
KW
23.92
30.88
29.81
37.92
37.92
22.69
28.85
27.90
36.39
36.60
3.51
3.44
3.39
3.39
3.39
3.46
3.39
3.34
3.33
3.32
Total
System
KW
105 (40.5)
45.09
38.65
36.05
36.46
36.46
44.33
38.03
35.56
35.21
35.21
24.26
30.16
29.03
36.46
36.46
22.99
28.11
27.16
35.21
35.21
Capacity
MBtuh
Total
Sens
3.58
3.69
3.63
3.64
3.64
3.52
3.63
3.58
3.57
3.58
Total
System
KW
31.95
29.00
26.88
26.78
26.78
31.36
28.43
26.32
26.46
25.67
16.00
20.30
19.52
26.78
26.78
15.12
18.94
18.23
22.99
25.67
Capacity
MBtuh
Total
Sens
95 (35)
2.35
2.36
2.37
2.36
2.36
2.34
2.35
2.35
2.31
2.35
Total
System
KW
31.03
28.00
24.87
25.14
25.14
31.76
26.33
24.41
24.16
24.16
15.68
19.93
18.73
25.14
25.14
15.26
18.16
17.47
24.16
24.16
Capacity
MBtuh
Total
Sens
105 (40.5)
2.58
2.59
2.64
2.64
2.64
2.28
2.62
2.63
2.63
2.63
115 (46.1)
115 (46.1)
23.12
28.88
27.35
33.86
33.86
21.88
26.85
25.89
32.79
32.79
30.23
24.36
22.66
23.27
23.27
26.40
23.99
22.29
22.43
22.43
15.42
18.62
17.88
23.27
23.27
13.49
17.30
16.64
22.43
22.43
Capacity
MBtuh
Total
Sens
41.83
35.36
31.99
33.86
33.86
41.24
34.81
32.52
32.79
32.79
Capacity
MBtuh
Total
Sens
48XL-- A
Total
System
KW
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
44.13
40.50
37.88
37.92
37.92
43.50
39.90
37.29
36.71
36.60
Capacity
MBtuh
Total
Sens
95 (35)
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
PERFORMANCE DATA--STANDARD ECM INDOOR MOTOR
2.60
2.93
2.96
2.95
2.95
2.90
2.92
2.95
2.94
2.94
Total
System
KW
3.93
4.03
4.03
4.00
4.00
3.87
3.98
3.92
3.93
3.93
Total
System
KW
125 (51.6)
125 (51.6)
20.13
26.96
25.92
29.82
29.82
18.96
25.04
24.13
29.04
29.04
24.42
21.97
20.20
21.29
21.29
24.07
21.52
19.93
20.48
20.50
13.57
17.76
16.93
21.29
21.29
12.74
16.42
15.73
20.48
20.50
Capacity
MBtuh
Total
Sens
32.98
30.38
28.59
29.82
29.82
32.75
30.12
28.29
29.04
29.04
Capacity
MBtuh
Total
Sens
3.26
3.29
3.31
3.29
3.29
3.25
3.28
3.30
3.29
3.29
Total
System
KW
4.51
4.45
4.40
4.43
4.43
4.47
4.40
4.35
4.37
4.37
Total
System
KW
16
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
75 (23.8)
38.20
30.85
32.01
25.88
46.32
41.09
32.81
34.10
27.17
45.43
46.29
50.04
55.24
46.32
46.57
47.25
51.07
56.36
31.49
27.41
22.28
23.21
19.02
33.04
29.57
23.76
24.78
20.03
31.49
32.49
33.19
36.14
40.19
33.04
33.42
34.05
37.06
41.21
Capacity
MBtuh
Total
Sens
75 (23.8)
44.39
44.39
Capacity
MBtuh
Total
Sens
See page 18 for cooling notes.
1100
965
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A48 Low Cool
1600
1400
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A48 High Cool
2.23
2.23
2.23
2.23
2.24
2.21
2.21
2.21
2.21
2.22
Total
System
KW
3.60
3.53
3.49
3.48
3.48
3.53
3.46
3.42
3.41
3.40
Total
System
KW
85 (29.4)
85 (29.4)
26.25
33.18
31.89
44.43
44.10
24.98
31.11
29.95
37.29
42.70
39.26
35.29
32.40
31.85
31.76
38.34
34.45
31.62
30.96
30.30
19.35
24.10
23.08
28.86
31.76
18.36
22.54
21.62
26.74
30.30
Capacity
MBtuh
Total
Sens
53.67
48.62
44.97
44.43
44.10
52.68
47.71
44.11
43.33
42.70
Capacity
MBtuh
Total
Sens
Cooling Extended Performance Table
2.48
2.49
2.50
2.50
2.50
2.46
2.47
2.48
2.48
2.49
Total
System
KW
3.91
3.84
3.80
3.79
3.79
3.84
3.77
3.73
3.72
3.71
Total
System
KW
25.29
32.20
30.92
42.54
42.54
24.04
30.16
29.00
36.31
40.87
4.25
4.18
4.13
4.13
4.13
4.18
4.11
4.06
4.05
4.05
Total
System
KW
105 (40.5)
47.69
43.19
39.95
41.40
40.41
46.96
42.50
39.28
38.87
38.88
24.26
31.17
29.90
41.40
40.41
23.04
29.14
28.00
38.87
38.88
Capacity
MBtuh
Total
Sens
4.62
4.55
4.50
4.51
4.51
4.55
4.48
4.43
4.43
4.43
Total
System
KW
37.19
33.40
30.64
30.39
30.39
36.37
32.65
29.95
29.34
29.02
18.64
23.38
22.37
30.39
30.39
17.67
21.84
20.92
26.03
29.02
Capacity
MBtuh
Total
Sens
95 (35)
2.77
2.78
2.80
2.80
2.80
2.75
2.77
2.78
2.78
2.78
Total
System
KW
34.96
31.39
28.77
28.90
28.90
34.25
30.72
28.14
27.64
27.63
17.88
22.62
21.61
28.90
28.90
16.93
21.10
20.18
27.57
27.63
Capacity
MBtuh
Total
Sens
105 (40.5)
3.10
3.12
3.14
3.13
3.13
3.08
3.10
3.12
3.12
3.12
Total
System
KW
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
50.80
46.00
42.55
42.54
42.54
49.93
45.21
41.79
41.11
40.87
Capacity
MBtuh
Total
Sens
95 (35)
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
PERFORMANCE DATA--STANDARD ECM INDOOR MOTOR
115 (46.1)
115 (46.1)
23.15
30.06
28.80
38.04
38.04
22.53
28.60
26.91
36.67
36.67
32.54
29.20
26.73
27.27
27.27
31.95
28.62
26.19
26.10
26.10
17.07
21.81
20.81
27.27
27.27
16.14
20.30
19.39
26.10
26.10
Capacity
MBtuh
Total
Sens
44.30
40.12
37.11
38.04
38.04
45.43
41.00
36.54
36.67
36.67
Capacity
MBtuh
Total
Sens
48XL-- A
3.48
3.51
3.53
3.52
3.52
3.46
3.49
3.52
3.51
3.51
Total
System
KW
5.03
4.96
4.91
4.92
4.92
4.52
4.43
4.84
4.84
4.84
Total
System
KW
125 (51.6)
125 (51.6)
22.59
29.43
27.59
36.61
36.62
20.75
26.85
25.73
35.30
34.16
29.89
26.79
24.50
25.45
25.45
29.40
26.31
24.04
24.40
24.40
16.19
20.93
19.92
25.45
25.45
15.29
19.44
18.53
24.40
24.40
Capacity
MBtuh
Total
Sens
42.55
38.36
33.97
36.61
36.62
40.04
36.24
33.51
35.30
34.16
Capacity
MBtuh
Total
Sens
3.92
3.95
3.99
3.97
3.97
3.90
3.94
3.97
3.97
3.96
Total
System
KW
5.06
4.97
5.36
4.93
4.93
5.41
5.34
5.29
4.84
5.30
Total
System
KW
17
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
57
(13.9)
62
(16.7)
63*
(17.2)
67
(19.4)
72
(22.2)
75 (23.8)
54.46
43.33
44.86
35.33
56.01
50.62
40.75
42.11
33.69
58.46
59.23
63.56
69.55
56.01
57.19
58.18
62.48
68.41
2.71
29.14
30.17
24.40
41.69
38.83
31.09
32.23
25.68
41.76
45.04
49.59
41.69
41.98
42.72
46.03
50.62
2.72
35.96
40.94
2.72
2.72
2.72
2.68
2.68
2.69
2.69
39.88
2.70
Total
System
KW
4.48
4.39
4.32
4.31
4.29
4.59
4.50
4.42
4.42
4.41
Total
System
KW
39.88
Capacity
MBtuh
Total
Sens
75 (23.8)
58.24
58.24
Capacity
MBtuh
Total
Sens
See page 18 for cooling notes.
1370
1200
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A60 Low Cool
1750
2000
CFM
EWB
_F (_C)
EVAPORATOR
AIR
48XL-- A60 High Cool
85 (29.4)
85 (29.4)
32.46
40.86
39.51
49.37
53.76
34.07
43.59
42.07
55.79
55.10
48.09
43.75
40.63
40.02
40.00
47.18
42.87
39.78
39.01
38.34
24.78
31.34
30.20
40.02
40.00
23.52
29.29
28.27
35.09
38.34
Capacity
MBtuh
Total
Sens
65.01
59.41
55.35
54.45
53.76
66.01
60.35
56.27
55.79
55.10
Capacity
MBtuh
Total
Sens
Cooling Extended Performance Table
3.04
3.05
3.07
3.07
3.07
3.01
3.02
3.04
3.04
3.04
Total
System
KW
4.91
4.81
4.74
4.73
4.72
5.02
4.92
4.85
4.84
4.84
Total
System
KW
31.14
39.90
38.20
48.01
51.30
32.73
42.24
41.83
55.36
54.80
5.37
5.18
5.20
5.19
5.19
5.48
5.38
4.69
4.69
4.69
Total
System
KW
105 (40.5)
57.37
55.71
51.66
50.93
50.80
58.07
56.62
52.48
52.73
52.40
29.72
39.39
37.95
47.74
50.80
31.30
42.14
40.49
52.73
52.40
Capacity
MBtuh
Total
Sens
5.88
5.21
5.10
5.08
5.08
5.99
5.33
5.22
5.23
5.23
Total
System
KW
45.37
41.27
38.35
38.18
37.90
44.52
40.50
37.61
36.90
36.64
23.83
30.36
29.24
38.18
37.90
22.56
28.35
27.34
34.14
36.64
Capacity
MBtuh
Total
Sens
95 (35)
3.41
3.43
3.45
3.45
3.45
3.38
3.40
3.42
3.43
3.43
Total
System
KW
42.32
38.55
35.86
36.13
35.45
41.68
37.91
35.23
34.90
34.74
22.77
29.32
28.21
36.13
35.45
21.55
27.31
26.33
34.90
34.74
Capacity
MBtuh
Total
Sens
105 (40.5)
3.83
3.86
3.89
3.89
3.89
3.80
3.84
3.87
3.87
3.87
115 (46.1)
115 (46.1)
28.19
36.58
35.27
45.50
45.20
29.74
39.21
37.74
46.94
46.70
39.01
35.56
33.13
33.82
33.62
38.47
35.04
32.61
32.60
31.90
21.64
28.18
27.09
33.82
33.62
20.43
26.21
25.22
32.60
31.90
Capacity
MBtuh
Total
Sens
52.97
48.47
45.27
45.50
45.20
53.51
48.97
45.80
46.94
46.70
Capacity
MBtuh
Total
Sens
48XL-- A
Total
System
KW
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
61.35
57.00
52.28
51.51
51.30
62.20
56.88
55.68
55.36
54.80
Capacity
MBtuh
Total
Sens
95 (35)
CONDENSER ENTERING AIR TEMPERATURES _F (_C)
PERFORMANCE DATA--STANDARD ECM INDOOR MOTOR
4.31
4.36
4.40
4.38
4.38
4.28
4.33
4.37
4.37
4.37
Total
System
KW
6.44
6.34
6.26
6.27
6.27
6.54
6.44
6.37
6.40
6.40
Total
System
KW
125 (51.6)
125 (51.6)
26.53
34.88
33.59
41.99
41.70
28.03
37.49
36.02
43.20
42.90
35.34
32.25
30.10
31.19
30.90
34.93
31.84
29.69
30.16
29.70
20.40
26.93
25.87
31.19
30.90
19.21
25.00
24.04
30.16
29.70
Capacity
MBtuh
Total
Sens
48.09
44.00
41.16
41.99
41.70
48.46
44.37
41.56
43.20
42.90
Capacity
MBtuh
Total
Sens
4.86
4.92
4.98
4.95
4.95
4.84
4.90
4.96
4.94
4.94
Total
System
KW
7.04
6.94
6.87
6.89
6.89
7.15
7.05
6.97
7.02
7.02
Total
System
KW
PERFORMANCE DATA (CONT)
3. The following formulas may be used:
LEGEND
BF— Bypass Factor
edb— Entering Dry--- Bulb
Ewb — Entering Wet--- Bulb
kW — Total Unit Power Input
ldb— Leaving Dry--- Bulb
lwb— Leaving Wet--- Bulb
SHC — Sensible Heat Capacity (1000 Btuh)
TC — Total Capacity (1000 Btuh) (net)
ECM — Electronic Computated Motor
Sensible capacity (Btuh)
*At 75_F (23.85C) entering dry bulb (Tennessee Valley Authority
[TVA] rating conditions); all other at 80_F (26.6_C) entering dry
bulb.
tldb
= tedb --
tlwb
=
hlwb
total capacity (Btuh)
= hewb --4.5 x cfm
Wet--- bulb temperature corresponding to enthalpy
air leaving evaporator coil (hlwb)
Where: hewb = Enthalpy of air entering evaporator coil
4. The SHC is based on 80_F (26.65C) edb temperature of air
entering evaporator coil. Below 80_F (26.6_C) edb, subtract (corr
factor x cfm) from SHC.
Above 80_F (26.6_C) edb, add (corr factor x cfm) to SHC.
Correction Factor = 1.10 x (1 + BF) x (edb --- 80).
NOTES:
1. Ratings are net; they account for the effects of the
evaporator--- fan motor power and heat.
2. Direct interpolation is permissible. Do not extrapolate.
48XL-- A
1.10 x cfm
Natural Gas Orifice Sizes and Manifold Pressure
Nameplate
Input,
High Stage
(Btu/hr)
40000
60000
90000
115000
130000
ALTITUDE OF INSTALLATION (FT. [m] ABOVE SEA LEVEL) U.S.A.*
2001 to
3001 to 4000
4001 to 5000
5001 to 6000
3000*
[915 to 1219]
[1220 to 1524]
[1524 to 1829]
[610 to 914]
44 (2)
45 (2)†
48 (2)†
48 (2)†
48 (2)†
3.2 /1.4
3.2 /1.4
3.8 /1.6
3.5 /1.5
3.2 /1.4
44 (3)
45 (3)†
48 (3)†
48 (3)†
48 (3)†
3.2 /1.4
3.2 /1.4
3.8 /1.6
3.5 /1.5
3.2 /1.4
38 (3)
41 (3)†
41 (3)†
42 (3)†
42 (3)†
3.6 /1.6
3.8 /1.6
3.4 /1.5
3.4 /1.5
3.2 /1.4
33 (3)
36 (3)†
36 (3)†
36 (3)†
38 (3)†
3.8 /1.7
3.8 /1.7
3.6 /1.6
3.3 /1.4
3.6 /1.5
31 (3)
31 (3)
33 (3)†
33 (3)†
34 (3)†
3.8 /1.7
3.2 /1.4
3.7 /1.6
3.4 /1.4
3.3 /1.4
0 to 2000
[0 to 610]
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
*In the U.S.A., the input rating for altitudes above 2000 ft (610m) must be reduced by 4% for each 1000 ft (305 m) above sea level.
In Canada, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be derated by 10% by an authorized gas conversion station or
dealer.
For Canadian Installations from 2000 to 4500 ft, use U.S.A. column 2001 to 3000 ft (610 to 914 m).
† Orifices available through your distributor.
NOTE: Orifice sizes and manifold pressure settings are based on natural gas with a heating value of 1025 Btu/ft3 and a specific gravity of .6.
Propane Gas Orifice Sizes and Manifold Pressure
Nameplate
Input,
High Stage
(Btu/hr)
40000
60000
90000
115000
130000
ALTITUDE OF INSTALLATION (FT. ABOVE SEA LEVEL) U.S.A.*†
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
Orifice No. (Qty)
Manifold Press. High / Low (in. W.C.)
0 to 2000
[0 to 610]
55 (2)
10.0/5.0
55 (2)
10.0/5.0
53 (3)
10.0/5.4
51 (3)
10.0/5.4
49 (3)
10.0/5.4
2001 to 3000*
[610 to 914]
56 (2)
11.0/6.0
56 (2)
11.0/6.0
54 (3)
11.0/6.4
52 (3)
11.0/5.0
50 (3)
11.0/4.8
3001 to 4000
[915 to 1219]
56 (2)
11.0/5.5
56 (2)
11.0/5.5
54 (3)
11.0/5.9
52 (3)
10.6/4.8
51 (3)
11.0/4.9
4001 to 5000
[1220 to 1524]
56 (2)
11.0/5.0
56 (2)
11.0/5.0
54 (3)
11.0/5.4
53 (3)
11.0/6.1
52 (3)
11.0/5.2
5001 to 6000
[1524 to 1829]
56 (2)
10.7/4.8
56 (2)
10.7/4.8
54 (3)
11.0/5.0
53 (3)
11.0/5.5
52 (3)
11.0/5.0
*In the U.S.A., the input rating for altitudes above 2000 ft (610m) must be reduced by 4% for each 1000 ft (305 m) above sea level.
In Canada, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be derated by 10% by an authorized gas conversion station or
dealer.
For Canadian Installations from 2000 to 4500 ft, use U.S.A. column 2001 to 3000 ft (610 to 914 m).
† Use Kit No. CPLPCONV013A00 (0--- 2000 ft [0--- 610 m] above sea level. Use Kit No. CPLPCONV014A00 (2001--- 6000 ft [611--- 1829 m] above sea level.
18
PERFORMANCE DATA (CONT)
High Altitude Compensation: Natural Gas
Nameplate
Input, High
Stage
(Btu/hr)
40000
60000
90000
115000
130000
Rated Heating Input (Btu/hr), Natural Gas at Installation Altitude Above Sea Level, U.S.A.*
0 to 2000 ft
2001 to 3000 ft*
3001 to 4000 ft
4001 to 5000 ft
5001 to 6000 ft
0 to 610 m
610 to 914 m
915 to 1219 m
1220 to 1524 m
1524 to 1829 m
High
Low
High
Low
High
Low
High
Low
High
Low
Stage
Stage
Stage
Stage
Stage
Stage
Stage
Stage
Stage
Stage
40000
26000
36000
23400
34400
22300
32800
21300
31200
20300
60000
39000
54000
35100
51600
33500
49200
32000
46800
30400
90000
58500
81000
52700
77400
50300
73800
48000
70200
45600
115000
75000
103500
67500
98900
64500
94300
61500
89700
58500
130000
84500
117000
76100
111800
72700
106600
69300
101400
65900
High Altitude Compensation: Propane Gas
Nameplate
Input, High
Stage
(Btu/hr)
40000
60000
90000
115000
130000
Rated Heating Input (Btu/hr), LP Gas at Installation Altitude Above Sea Level, U.S.A.*
0 to 2000 ft
2001 to 3000 ft*
3001 to 4000 ft
4001 to 5000 ft
5001 to 6000 ft
0 to 610 m
610 to 914 m
915 to 1219 m
1220 to 1524 m
1524 to 1829 m
High
Low
High
Low
High
Low
High
Low
High
Low
Stage
Stage
Stage
Stage
Stage
Stage
Stage
Stage
Stage
Stage
38000
26000
31700
23400
31700
22300
31700
21300
31200
20300
57000
39000
47500
35100
47500
33500
47500
32000
46800
30400
79000
58500
68900
52700
68900
50300
68600
48000
68600
45600
103000
75000
100400
67500
98900
64500
83000
61500
83000
58500
116000
84500
115500
76100
111800
72700
101300
69300
100400
65900
*In the U.S.A., the input rating for altitudes above 2000 ft (610 m) must be reduced by 4% for each 1000 ft (305 m) above sea level.
In Canada, the input rating for altitudes from 2001 to 4500 (611 to 1372 m) above sea level must be derated by 10% by an authorized gas conversion station or
dealer.
For Canadian Installations from 2000 to 4500 ft (610 to 1372 m), use U.S.A. column 2001 to 3000 ft (610 to 914 m).
19
48XL-- A
*In the U.S.A., the input rating for altitudes above 2000 ft (610 m) must be reduced by 4% for each 1000 ft (305 m) above sea level.
In Canada, the input rating for altitudes from 2001 to 4500 (611 to 1372 m) above sea level must be derated by 10% by an authorized gas conversion station or
dealer.
For Canadian Installations from 2000 to 4500 ft (610 to 1372 m), use U.S.A. column 2001 to 3000 ft (610 to 914 m).
PERFORMANCE DATA (CONT)
Wet/Dry Coil Air Delivery (CFM)-- Low Stage
208/230 VOLT
UNIT
SIZE
24
30
36
48XL-- A
42
48
60
SYSTEM SETTING
COMFORT (Default)
EFFICIENCY
MAX
COMFORT (Default)
EFFICIENCY
MAX
COMFORT (Default)
EFFICIENCY
MAX
COMFORT (Default)
EFFICIENCY
MAX
COMFORT (Default)
EFFICIENCY
MAX
COMFORT (Default)
EFFICIENCY
MAX
0.1
0.2
525
600
525
600
613
700
613
700
743
850
743
850
853
975
853
975
963
1100
963
1100
1200
1372
1200
1372
EXTERNAL STATIC PRESSURE (IN. W.C.)
0.4
0.5
0.6
0.7
0.8
Variable based on Comfort Settings
525
525
525
525
525
525
600
600
600
600
600
600
Variable based on Comfort Settings
613
613
613
613
613
613
700
700
700
700
700
700
Variable based on Comfort Settings
743
743
743
743
743
743
850
850
850
850
850
850
Variable based on Comfort Settings
853
853
853
853
853
853
975
975
975
975
975
975
Variable based on Comfort Settings
963
963
963
963
963
963
1100
1100
1100
1100
1100
1100
Variable based on Comfort Settings
1200
1200
1200
1200
1200
1200
1372
1372
1372
1372
1372
1372
0.3
0.9
1.0
525
600
525
600
613
700
613
700
743
850
743
850
853
975
853
975
963
1100
963
1100
1200
1372
1200
1372
0.8
0.9
1.0
Wet/Dry Coil Air Delivery (CFM)-- High Stage
208/230 VOLT
UNIT
SIZE
SYSTEM SETTING
EXTERNAL STATIC PRESSURE IN. W.C.)
0.1
0.2
0.3
EFFICIENCY
700
700
700
700
700
700
700
700
700
700
MAX
800
800
800
800
800
800
800
800
800
800
COMFORT (Default)
24
875
875
875
875
875
875
875
875
875
875
MAX
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
EFFICIENCY
1050
1050
1050
MAX
1200
1200
1200
Variable based on Comfort Settings
1050
1050
1050
1050
1050
1050
1200
1200
1200
1200
1200
1200
1200
EFFICIENCY
1225
1225
1225
1225
1225
1225
1225
1225
1225
1225
MAX
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
Variable based on Comfort Settings
EFFICIENCY
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
MAX
1600
1600
1600
1600
1600
1600
1600
1600
1600
1600
COMFORT (Default)
60
1050
Variable based on Comfort Settings
COMFORT (Default)
48
0.7
EFFICIENCY
COMFORT (Default)
42
0.6
Variable based on Comfort Settings
COMFORT (Default)
36
0.5
Variable based on Comfort Settings
COMFORT (Default)
30
0.4
Variable based on Comfort Settings
EFFICIENCY
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
MAX
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
Air delivery values are based on operating voltage of 230v, and wet coil. Filter and electric heater will not change air delivery values.
NOTES:
1. See User Interface instructions for more information on Max, Efficiency, and Comfort Settings
2. Efficiency Setting operates at 350 cfm/ton (nominal) and Max Setting operates at 400 cfm/ton (nominal)
20
TYPICAL PIPING AND WIRING
ROOF-MOUNTING
CURB
ROOF
RETURN-AIR
FLEXIBLE DUCT
48XL-- A
SUPPLY-AIR
FLEXIBLE DUCT
CEILING
CONCENTRIC DIFFUSER BOX
(FIELD-SUPPLIED)
A09226
A09237
21
APPLICATION DATA
Condensate trap — A 2--in. (51 mm) condensate trap must be field
supplied.
Ductwork — Secure downflow discharge ductwork to roof curb. For
horizontal discharge applications, attach ductwork to unit with
flanges.
To convert a unit to downflow discharge — Units are equipped
with factory--installed inserts in the downflow openings. Remove the
inserts similar to removing an electrical knock--out. Leave on duct
covers to seal the horizontal discharge openings in the unit. Units
installed in horizontal discharge orientation do not require duct covers.
Minimum cooling ambient operating temperature — All standard units have a minimum ambient operating temperature of 55°F
(12.7°C). With accessory low--ambient temperature kit, units can operate at temperatures down to 0°F (--17.7°C).
Maximum operating outdoor air temperature — Maximum outdoor operating air temperature for cooling is 125°F (51.6°C).
48XL-- A
ELECTRICAL DATA
UNIT
SIZE
V-- PH-- HZ
24040
24060
30040
30060
36060
36090
42060
42090
48090
48115
48130
60090
60115
60130
208/230–1–60
VOLTAGE
RANGE
Min
Max
187
253
COMPRESSOR
RLA
10.3
10.3
14.1
14.1
16.7
16.7
16.7
16.7
21.2
21.2
21.2
25.6
25.6
25.6
LRA
52.0
52.0
70.0
70.0
82.0
82.0
96.0
96.0
96.0
96.0
96.0
118.0
118.0
118.0
OUTDOOR
FAN MOTOR
FLA
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
1.5
1.5
1.5
1.9
1.9
1.9
LEGEND
FLA - Full Load Amps
IDM - Inducer Motor
IFM - Indoor Fan Motor
LRA -Locked Rotor Amps
MCA - Minimum Circuit Amps
MOCP - Maximum Over Current Protection
OFM - Outdoor Fan Motor
RLA - Rated Load Amps
22
INDOOR
FAN MOTOR
FLA
4.3
4.3
4.3
4.3
6.8
6.8
6.8
6.8
6.8
6.8
6.8
9.1
9.1
9.1
IDM
FLA
.21
.21
.21
.21
.21
.21
.21
.21
.21
.50
.50
.21
.50
.50
POWER SUPPLY
MCA
18.0
18.0
22.8
22.8
28.5
28.5
28.5
28.5
34.7
34.7
34.7
43.1
43.1
43.1
MOCP
25
25
35
35
40
40
40
40
50
50
50
60
60
60
48XL-- A
CONNECTION WIRING SCHEMATIC—208/230--1--60 GAS INPUTS 040, 060, 090 kBtu/hr
A10217C
23
48XL-- A
LADDER WIRING SCHEMATIC—208/230--1--60 GAS INPUTS 040, 060, 090 kBtu/hr
A10217L
24
48XL-- A
CONNECTION WIRING SCHEMATIC—208/230--1--60 GAS INPUTS 115, 130 kBtu/hr
A10219C
25
48XL-- A
LADDER WIRING SCHEMATIC—208/230--1--60 GAS INPUTS 115, 130 kBtu/hr
A10219L
26
CONTROLS
3. Flame--Proving: When the burner flame is proved at the
flame--proving sensor, the furnace control determines what
heating stage to run based on feedback from the UI. If the UI
is asking for low stage gas heat, the ignition control will
change the inducer speed to low speed and keep the gas valve
energized on low stage. If the UI is asking for high stage gas
heat, the ignition control will maintain running the inducer on
high speed and energize the gas valve’s high stage relay to
increase gas flow.
Sequence of Operation
NOTE: When two--stage unit is operating at low stage, system
vapor (suction) pressure will be higher than a standard
single--stage system or high--stage operation.
Gas Heat Mode and Adjustments—When the UI calls for gas heat,
the Infinity furnace board performs a self--check, verifies the pressure
switch is open, and starts the inducer on high speed.
1. Inducer Pre--purge Period: When the inducer motor comes up
on high speed, the pressure switch closes, and the Infinity
ignition control on the furnace board begins a 15 second
pre--purge period. If the pressure switch fails to remain closed,
the inducer will remain running. After the pressure switch
re--closes, the Infinity ignition control will begin a new 15
second pre--purge period.
2. Trial--For--Ignition Sequence: The spark igniter will spark for
3 sec. The main gas valve relay contact closes to energize the
gas valve on low stage. After 5 sec, the igniter is de--energized
and a 2--second flame--proving period begins. NOTE: The
unit always lights on high speed inducer and low stage gas
valve operation.
If the burner flame is not proved within 2 second, the control will
close the gas valve and repeat the ignition sequence up to 3 more
Trials--For--Ignition before going to Ignition--Lockout. Lockout will
reset automatically after 3 hrs, by momentarily interrupting 230 VAC
power, or by interrupting 24 VAC power at SEC1 or SEC2 to the
furnace board.
If flame is proved when there should be no flame present, control will
lock out of Gas--Heating mode and operate the inducer motor until
flame is no longer proved.
4. The indoor (evaporator) fan motor is energized 30 seconds
after flame is established. When the UI is satisfied, the
burners stop firing and the indoor (evaporator) fan motor
shuts off after a field--selectable time off delay (90, 120, 150
or 180 seconds).
NOTE: If continuous fan is “ON”, the indoor (evaporator) fan
motor will switch to the gas heating speed on a call for heat and
will resume continuous fan speed, once the UI is satisfied.
27
48XL-- A
Cooling Operation—With a call for first stage cooling, the outdoor
fan and low--stage compressor are energized. If low--stage cannot
satisfy cooling demand, high--stage is energized by the User Interface.
After second stage is satisfied, the unit returns to low--stage operation
until first stage is satisfied or until second stage is required again.
When both first stage and second stage cooling are satisfied, the
compressor will shut off.
GUIDE SPECIFICATIONS
48XL-- A
SINGLE--PACKAGED AIR CONDITIONER AND GAS
FURNACE SYSTEM CONSTANT VOLUME APPLICATION
HVAC GUIDE SPECIFICATIONS
SIZE RANGE: 2 TO 5 TONS, NOMINAL (COOLING)
40,000 to 130,000 Btuh
Nominal Heating Input
MODEL NUMBER: 48XL--A
PART I -- GENERAL
SYSTEM DESCRIPTION
Outdoor rooftop or ground mounted air conditioner and gas
furnace system utilizing a two--stage scroll compressor for cooling duty. Unit shall discharge supply air vertically or horizontally
as shown on contract drawings. Outdoor fan/coil section shall
have a draw--thru design with vertical discharge for minimum
sound levels.
QUALITY ASSURANCE
A. Unit shall be rated in accordance with AHRI Standards
210/240, and 270.
B. Unit shall be designed in accordance with UL Standard
1995 and ANSI Z21.47.
C. Unit shall be manufactured in a facility registered to ISO
9001 manufacturing quality standard.
D. Unit shall be UL listed and c--UL certified as a total
package for safety requirements.
E. Roof curb shall be designed to conform to NRCA
Standards.
F. Insulation and adhesives shall meet NFPA 90A
requirements for flame spread and smoke generation.
G. Cabinet insulation shall meet ASHRAE Standard 62P.
DELIVERY, STORAGE, AND HANDLING
Unit shall be stored and handled per manufacturer’s recommendations.
PART 2-- PRODUCTS
EQUIPMENT
A. General:
Factory--assembled, single--piece, heating and cooling unit.
Contained within the unit enclosure shall be all factory wiring,
piping, controls, refrigerant charge (R--410A), and special features required prior to field start--up.
3. Outdoor fan shall be of the direct--driven propeller type with
aluminum blades, riveted to corrosion--resistant steel spiders.
It shall be dynamically balanced, and discharge air vertically.
D. Compressor:
1. Fully hermetic 2--stage compressors with factory--installed
vibration isolation.
2. Two--stage scroll compressors shall be standard on all units.
E. Coils:
1. Indoor and outdoor coils shall have aluminum plate fins
mechanically bonded to seamless copper tubes with all joints
brazed.
2. Tube sheet openings shall be bellied to prevent tube wear.
F. Heating Section:
1. Induced--draft combustion type with energy saving direct
spark ignition system and redundant main gas valve.
2. Pressure switch ensures adequate airflow for combustion
from induced draft motor.
3. The heat exchangers shall be constructed of 409 stainless
steel for corrosion resistance.
4. Burners shall be of the in--shot type constructed of
aluminum coated steel.
5. All gas piping and electric power shall enter the unit cabinet
at a single location.
G. Refrigerant Metering Device:
Refrigerant metering device shall be of the TXV
(thermostatic expansion valve) type.
H. Filters:
Filter section shall consist of field--installed, throw--away,
1--in. (25 mm) thick fiberglass filters of commercially
available sizes.
I. Controls and Safeties:
1. Unit controls shall be complete with self--contained low
voltage control circuit.
2. Units shall incorporate an internal compressor protector that
provides reset capability.
3. Unit shall provide high and low/loss--of--charge pressure
safety protection.
J. Operating Characteristics:
1. Unit shall be capable of starting and running at 125°F
(51.6_C) ambient outdoor temperature, exceeding maximum
load criteria of AHRI Standard 210.
B. Unit Cabinet:
1. Unit cabinet shall be constructed of phosphated, zinc--coated,
prepainted steel capable of withstanding 500 hrs of salt spray.
2. Compressor with standard controls shall be capable of
operation down to 55°F (12.7_C) ambient outdoor
temperature. Low ambient cooling down to 0°F (--17.7_C) is
possible with “low ambient cooling” enabled in the UI.
2. Normal service shall be through 3 removable cabinet panels.
3. The unit shall be constructed on a rust proof unit base that has
an externally trapped, integrated sloped drain pan.
4. Indoor fan compartment top surface shall be insulated with a
minimum 1/2--in. (13 mm) thick, flexible fiberglass
insulation, coated on the air side and retained by adhesive and
mechanical means. The indoor wall sections will be insulated
with a foil--faced insulation capable of being wiped clean.
Aluminum foil--faced fiberglass insulation shall be used in the
entire indoor air cavity seciton.
3. Units shall be provided with fan time delay to prevent cold air
delivery before the heat exchanger warms up.
K. Electrical Requirements:
All unit power wiring shall enter unit cabinet at a single location.
L. Motors:
1. Compressor motors shall be of the refrigerant--cooled type
with line--break thermal and current overload protection.
5. Unit shall have a field--supplied condensate trap.
2. All fan motors shall have permanently lubricated bearings and
inherent automatic--reset thermal overload protection.
C. Fans:
1. The indoor fan shall be direct--drive, variable--speed motor
and control, as shown on equipment drawings.
3. Outdoor fan motor shall be totally enclosed.
4. Evaporator fan motor to be full featured ECM Motor.
2. Fan wheel shall be made from steel, be double--inlet type. It
shall have forward--curved blades with a corrosion--resistant
finish and shall be dynamically balanced.
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GUIDE SPECIFICATIONS (CONT)
M. Low NOx (Natural Gas only) Option (48XLN--A Models):
Shall provide NOx reduction to values below 40 nanograms/
joule to meet California’s and other localities’ emission requirements.
5. High Altitude Kit:
Shall consist of natural gas orifices to compensate for gas heat
operation at 2001 to 6000 ft (611 m to 1829 m) above sea level.
N. Grille
1. Louvered Grille:
Louvered grille shall be factory--installed to provide hail
guard and vandalism protection.
O. Special Features:
1. Coil Options:
Shall include factory--installed optional tin--plated indoor
hairpins refrigerant coils.
6. Manual Outdoor Air Damper:
Package shall consist of damper, bird screen, and rain hood
which can be preset to admit outdoor air for year--round ventilation.
2. Infinity User Interface:
To provide for one--stage heating and cooling in addition to
manual or automatic changeover and indoor fan control.
8. Propane--to--Natural Conversion Kit:
Shall be complete with all hardware to convert to natural
gas at standard altitude (0 to 2000 ft [0 to 610 m] above sea
level).
9. Square--To--Round Duct Transitions:
Shall have the ability to convert the supply and return openings from rectangular to round (24--48 models).
3. Filter Rack Kit:
Shall provide filter mounting for downflow and horizontal
applications.
4. Flat Roof Curb:
Curbs shall have seal strip and a wood nailer for flashing and
shall be installed per manufacturer’s instructions.
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48XL-- A
7. Natural--to--Propane Conversion Kit:
Shall be complete with all required hardware to convert to
propane operation at minimum 10.0 in. wg manifold pressure.
48XL-- A
Copyright 2010 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231
Printed in U.S.A.
Edition Date: 09/10
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
30
Catalog No: 48XL---09PD
Replaces: 48XL--- 08PD