Carrier WeatherMaker 48A020 User manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480230-01 Printed in U.S.A. Form 48A-20SI Pg 1 3-19 Replaces: 48A-18SI
Installation Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1
ACOUSTICAL CONSIDERATIONS . . . . . . . . . . . . . . . . 3
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Acoustic Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 1 — Provide Unit Support . . . . . . . . . . . . . . . . . . . 4
• ROOF CURB
• ALTERNATE UNIT SUPPORT
Step 2 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 4
• POSITIONING
• ROOF MOUNT
Step 3 — Field Fabricate Ductwork. . . . . . . . . . . . . . 21
Step 4 — Make Unit Duct Connections . . . . . . . . . . 21
• 48A2, A3, A6, A7 UNITS
• 48A4, A5, A8, A9 UNITS
Step 5 — Install Flue Hood . . . . . . . . . . . . . . . . . . . . . . 22
• 48A020-050 UNITS
• 48A060 UNITS
Step 6 — Trap Condensate Drain. . . . . . . . . . . . . . . . 22
Step 7 — Install Gas Piping . . . . . . . . . . . . . . . . . . . . . 23
• OPTIONAL STAGED GAS UNITS
Step 8 — Install Supply-Air Thermistors
(Staged and Modulating Gas Units Only) . . . . . 23
Step 9 — Make Electrical Connections . . . . . . . . . . 24
•POWERWIRING
• FIELD POWER SUPPLY
• FIELD CONTROL WIRING
Step 10 — Make Outdoor-Air Inlet
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
• ECONOMIZER AND FIXED OUTDOOR
AIR DAMPER
Step 11 — Position Power Exhaust/Barometric
Relief Damper Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Step 12 — Route VAV Static Pressure Sensors . 31
• VAV DUCT PRESSURE TRANSDUCER
• VAV BUILDING PRESSURE TRANSDUCER
Step 13 — Install All Accessories . . . . . . . . . . . . . . . 31
• FIELD-FABRICATED WIND BAFFLES
Step 14 — Perform Field Modifications. . . . . . . . . . 33
• DUCTWORK
BACnet Communication Option Wiring. . . . . . . . . 33
• WIRING THE UPC OPEN CONTROLLER TO THE
MS/TP NETWORK
• MS/TP WIRING RECOMMENDATIONS
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should in-
stall, repair, or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance
functions of cleaning coils and filters and replacing filters. All
other operations should be performed by trained service
personnel. When working on air-conditioning equipment, ob-
serve precautions in the literature, tags, and labels attached to
the unit, and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
fire extinguishers available for all brazing operations.
WARNING
Before performing service or maintenance operations on
unit, turn off main power switch to unit. Electrical shock
could cause personal injury.
WARNING
Improper installation, adjustment, alteration, service, or
maintenance can cause property damage, personal injury,
or loss of life. Refer to the User’s Information Manual pro-
vided with this unit for more details.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
What to do if you smell gas:
1. DO NOT try to light any appliance.
2. DO NOT touch any electrical switch, or use any
phone in your building.
3. IMMEDIATELY call your gas supplier from a neigh-
bor’s phone. Follow the gas supplier’s instructions.
4. If you cannot reach your gas supplier, call the fire
department.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and gog-
gles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from sys-
tem using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated. Refrig-
erant in contact with an open flame produces toxic
gases.
d. Cut component connection tubing with tubing cutter
and remove component from unit. Use a pan to catch
any oil that may come out of the lines and as a gage
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when nec-
essary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal
injury or death.
WeatherMaker®
48A020-060
Single Package Gas Heating/Electric Cooling
Rooftop Units with ComfortLink Controls
and Puron®Refrigerant (R-410A)

2
CAUTION
DO NOT re-use compressor oil or any oil that has been
exposed to the atmosphere. Dispose of oil per local codes and
regulations. DO NOT leave refrigerant system open to air any
longer than the actual time required to service the equipment.
Seal circuits being serviced and charge with dry nitrogen to
prevent oil contamination when timely repairs cannot be com-
pleted. Failure to follow these procedures may result in dam-
age to equipment.
WARNING
Disconnect gas piping from unit when pressure testing at pres-
sure greater than 0.5 psig. Pressures greater than 0.5 psig will
cause gas valve damage resulting in hazardous condition. If
gas valve is subjected to pressure greater than 0.5 psig, it must
be replaced before use. When pressure testing field-supplied
gas piping at pressures of 0.5 psig or less, a unit connected to
such piping must be isolated by closing the manual gas
valve(s).
WARNING
CARBON-MONOXIDE POISONING HAZARD
Failure to follow instructions could result in severe personal
injury or death due to carbon-monoxide poisoning, if com-
bustion products infiltrate into the building.
Check that all openings in the outside wall around the vent
(and air intake) pipe(s) are sealed to prevent infiltration of
combustion products into the building.
Check that furnace vent (and air intake) terminal(s) are not
obstructed in any way during all seasons.
AVERTISSEMENT
RISQUE D’INTOXICATION AU MONOXYDE DE
CARBONE
Si ces directives ne sont pas suivies, cela peut entraîner des
blessures graves ou une intoxication au monoxyde de
carbone pouvant causer la mort, si des produits de
combustion s’infiltrent dans le bâtiment.
Vérifier que toutes les ouvertures pratiquées dans le mur
extérieur autour du ou des tuyaux d’évent (et de la prise
d’air) sont scellées de manière à empêcher l’infiltration de
produits de combustion dans le bâtiment.
Veiller à ce que la ou les sorties de l’évent de l’appareil de
chauffage (et la prise d’air) ne soient, en aucune façon,
obstruées, quelle que soit la saison.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
Puron®(R-410A) refrigerant systems operate at higher pres-
sures than standard R-22 systems. Do not use R-22 service
equipment or components on Puron refrigerant equipment.
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal inju-
ry, death, and/or property damage.
Inlet pressure tap set screw must be tightened and 1/8-in.
NPT pipe plug must be installed to prevent gas leaks.
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal inju-
ry, death, and/or property damage.
Manifold pressure tap set screw must be tightened and 1/8-in.
NPT pipe plug must be installed to prevent gas leaks.
WARNING
If the information in this manual is not followed exactly, a
fire or explosion may result causing property damage, per-
sonal injury or loss of life.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
GAS VALVE
INLET PRESSURE
TAP SET SCREW
MANIFOLD
GAS VALVE
MANIFOLD PRESSURE
TAP SET SCREW

3
ACOUSTICAL CONSIDERATIONS
In order to minimize sound transmitted to the space, please
conform to the following recommendations (see Fig. 1):
Location
• Avoid locating the unit above sound-sensitive areas.
Instead, locate the unit above restrooms, storage areas,
corridors, or other noise-tolerant areas.
• Avoid mounting the unit in the middle of large roof
expanses between vertical supports. This will minimize
the phenomenon known as roof bounce.
• Install the units close to vertical roof supports (columns
or load bearing walls).
• Locate the units at least 25 ft away from critical areas. If
this is not possible, the ductwork and ceiling structure
should be acoustically treated.
• Consider the use of vibration isolators or an acoustic curb.
Ductwork
• Utilize flexible connectors between the unit and the sup-
ply and return ducts.
• Supply and return air main trunk ducts should be located
over hallways and/or public areas.
• Provide trailing edge turning vanes in ductwork elbows
and tees to reduce air turbulence.
• Make the ductwork as stiff as possible.
• Use round duct wherever possible because it is less noisy.
• Seal all penetrations around ductwork entering the space.
• Make sure that ceiling and wall contractors do not attach
hangers or supports to ductwork.
• Provide as smooth and gradual transition as possible when
connecting the rooftop unit discharge to the supply duct.
• If a ceiling plenum return is utilized, provide a return
elbow or tee to eliminate line-of-sight noise to the space.
Face the entrance of the return duct away from other
adjacent units.
Acoustic Insulation
• Provide acoustic interior lining for first 20 ft of supply
and return duct or until the first elbow is encountered.
The elbow prevents line-of-sight transmission in the sup-
ply and return ducts.
• Install a double layer of 2-in. low density quilted fiberglass
acoustical pad with a 1/8-in. barium-loaded vinyl facing on
top of the roof deck before building insulation and roofing
installation occur. Place the material inside the curb and
for 4 to 8 ft beyond the unit perimeter, dependent upon
unit size (larger units require a wider apron outside the
curb). Openings in the pad should only be large enough for
the supply and return ducts. An alternate approach is to
use two layers of gypsum board with staggered seams in
addition to the acoustical pad.
AVERTISSEMENT
RISQUE D´INCENDIE OU D´EXPLOSION
Si les consignes de sécurité ne sont pas suivies à la lettre,
cela peut entraîner la mort, de graves blessures ou des
dommages matériels.
Ne pas entreposer ni utiliser d´essence ni autres vapeurs ou
liquides inflammables à proximité de cet appareil ou de tout
autre appareil.
QUE FAIRE SI UNE ODEUR DE GAZ EST DÉTECTÉE
• Ne mettre en marche aucun appareil.
• Ne toucher aucun interrupteur électrique; ne pas
utiliser de téléphone dans le bâtiment.
• Quitter le bâtiment immédiatement.
• Appeler immédiatement le fournisseur de gaz en
utilisant le téléphone d´un voisin. Suivre les
instructions du fournisseur de gaz.
• Si le fournisseur de gaz n´est pas accessible, appeler le
service d´incendie.
L´installation et l´entretien doivent être effectués par un
installateur ou une entreprise d´entretien qualifié, ou le
fournisseur de gaz.
FLEXIBLE
CONNECTORS
SUPPLY AND
RETURN
VIBRATION
ISOLATORS
IN ROOF
CURB
INTAKE
PLENUM
SUPPLY
FAN
DISCHARGE
PLENUM COMPRESSOR/
CONDENSING
SECTION ALL ROOF
PENETRATIONS
SHOULD BE
SEALED
AIR TIGHT
ROUND DUCT CONTROLS
RUMBLE BEST
SUPPLY AND RETURN
DUCTS LINED WITH
ACOUSTICAL DUCT LINER
Fig. 1 — Acoustical Considerations

4
INSTALLATION
Installation of this furnace at altitudes above 2000 ft (610 m)
shall be made in accordance with the Listed High Altitude
Conversion Kit available with this furnace.
L'installation de ce générateur de chaleur à des altitudes
supérieures à 2000 pi (610 m) doit être effectuée conformé-
ment aux instructions accompagnant la trousse de conversion
pour haute altitude fournie avec cet appareil.
Step 1 — Provide Unit Support
ROOF CURB — For vertical discharge units, assemble or install
accessory roof curb in accordance with instructions shipped with
this accessory. See Fig. 2-4. Install insulation, cant strips, roofing,
and counter flashing as shown. Ductwork can be installed to roof
curb before unit is set in place. Curb should be level. This is neces-
sary to permit unit drain to function properly. Unit leveling toler-
ance is shown in Fig. 2-4. Refer to Accessory Roof Curb Installa-
tion Instructions for additional information as required. When ac-
cessory roof curb is used, unit may be installed on class A, B, or C
roof covering material.
ALTERNATE UNIT SUPPORT — When the preferred curb or
slab mount cannot be used, support unit with sleepers on perime-
ter, using unit curb support area. If sleepers cannot be used, sup-
port long sides of unit (refer to Fig. 5-13) with a minimum number
of 4-in. x 4-in. pads spaced as follows: 48A20-035 units require 3
pads on each side; 48A040-050 units require 4 pads on each side;
48A060 units require 6 pads on each side. Unit may sag if support-
ed by corners only.
Step 2 — Rig and Place Unit — Inspect unit for trans-
portation damage. See Tables 1-6 for physical data and specifica-
tions. File any claim with transportation agency.
Do not drop unit; keep upright. Use spreader bars over unit to pre-
vent sling or cable damage. This unit must be handled with a
crane and cannot be handled by a fork truck. Level by using unit
frame as a reference; leveling tolerance is shown in Fig. 2-4. See
Fig. 14 for additional information. Unit operating weight is shown
in Table 2.
NOTE: On retrofit jobs, ductwork may be attached to the old unit
instead of a roof curb. Be careful not to damage ductwork when
removing old unit. Attach existing ductwork to roof curb instead
of unit.
Four lifting lugs are provided on the unit base rails as shown in
Fig. 5-13. Refer to rigging instructions on unit.
POSITIONING — Maintain clearance, per Fig. 5-13, around and
above unit to provide minimum distance from combustible mate-
rials, proper airflow, and service access.
Do not install unit in an indoor location. Do not locate unit air
inlets near exhaust vents or other sources of contaminated air. For
proper unit operation, adequate combustion and ventilation air
must be provided in accordance with Section 5.3 (Air for Com-
bustion and Ventilation) of the National Fuel Gas Code, ANSI
Z223.1 (American National Standards Institute).
Although unit is weatherproof, guard against water from higher
level runoff and overhangs.
Locate mechanical draft system flue assembly at least 4 ft from
any opening through which combustion products could enter the
building, and at least 4 ft from any adjacent building. When unit is
located adjacent to public walkways, flue assembly must be at
least 7 ft above grade.
ROOF MOUNT — Check building codes for weight distribu-
tion requirements. See Fig. 14. Unit operating weight is shown
in Table 2.
CAUTION
Ensure clearances are in accordance with local installation
codes, the requirements of the gas supplier and the manu-
facturer's installation Instructions.
ATTENTION
Assurez-vous que les dégagements sont conformes aux
codes d'installation locaux, aux exigences du fournisseur de
gaz et aux instructions d'installation du fabricant.
CAUTION
1. All panels must be in place when rigging or damage to
unit may occur.
2. Unit is not designed for handling by fork truck. Damage
to unit may occur.
IMPORTANT: The gasketing of the unit to the roof curb is
critical for a watertight seal. Install gasket with the roof curb
as shown in Fig. 2-4. Improperly applied gasket can also result
in air leaks and poor unit performance.
Instructions continued on page 21.

5
Fig. 2 — Roof Curb — 48A2,A3,A6,A7020-035 Units
(48A2/A3/A6/A7-035 HIGH GAS HEAT ONLY)
NOTES:
1. Unless otherwise specified, all dimensions are to outside of part. 2. Roof curb accessory CRRFCURB005A00 is shipped disassembled. 3. All roof curb parts are to be 14 ga. galvanized steel. 4. Dimensions in [ ] are in millimeters. All other dimensions are in inches.

6
Fig. 3 — Roof Curb — 48A2,A3,A6,A7040-050 Units
NOTES:
1. Unless otherwise specified, all dimensions are to outside of part. 2. Roof curb accessory CRRFCURB006A00 is shipped disassembled. 3. All roof curb parts are to be 14 ga. galvanized steel. 4. Dimensions in [ ] are in millimeters. All other dimensions are in inches.

7
Fig. 4 — Roof Curb — 48A2,A3,A6,A7060 Units
a48-6717
NOTES:
1. Unless otherwise specified, all dimensions are to outside of part. 2. Roof curb accessory CRRFCURB014A00 is shipped disassembled. 3. All roof curb parts are to be 14 ga. galvanized steel. 4. Dimensions in [ ] are in millimeters. All other dimensions are in inches.

8
Fig. 5 — Base Unit Dimensions — 48A2,A3,A6,A7020-035
7. DIMENSIONS ARE IN INCHES [MM].

9
Fig. 6 — Base Unit Dimensions — 48A2,A3,A6,A7040-050
A48-8689
A48-8689
NOTES:
1. Weightsinclude economizer. 2. center of gravity. 3.Unitclearances:
Top o f units: no overhang Condenser coil: 4’ - 0” [1219] Economizer side: 6’ - 0” [1829]
Heat side: 4’ - 0” [1219] Filter access side: 10’ - 0” [3048] (for removal of evaporator coil)
4. Bottom ductsare designed to be attached to
accessory roof curb. If unit ismounted on dunnage, it isrecommended that the ducts
be supported by cross bracesas done on
accessory roof curb.
5. Dimensionsin [ ] are in millimeters. All other
dimensionsare in inches.
*Operating weight includeslargest indoor fan motor, micro- channel heat exchanger, modulating power exhaust (vari- able air volume units), and variable frequency drive (variable air volume units).

10
Fig. 7 — Base Unit Dimensions — 48A4,A5,A8,A9020-035
6. DIMENSIONS ARE IN INCHES [MM].

11
Fig. 8 — Base Unit Dimensions — 48A4,A5,A8,A9040-050
*Operating weight includeslargest indoor fan motor, micro- channel heat exchanger, modulating power exhaust (vari- able air volume units), and variable frequency drive (variable air volume units).
NOTES:
1. Weightsinclude economizer. 2. center of gravity
3. Unit clearances:
Top of units: no overhang
Condenser coil: 4’- 0” [1219]
Economizer side: 6’ - 0”[1829] Heat side: 4’ - 0” [1219] Filter access side: 10’ - 0” [3048] (for removal of evaporator coil)
4. For smaller service and operational clear-
ances, contact Carrier application engineer- ing department.
5. Bottom ductsare designed to be attached to
accessory roof curb. If unit ismounted on
dunnage, it isrecommended that the ducts be supported by cross bracesas done on accessory roof curb.
6. Dimensionsin [ ] are in millimeters. All other
dimensionsare in inches.

12
But
Fig. 9 — Base Unit Dimensions MCHX, Bottom Supply and Return — 48A2,A3,A6,A7060
FOR CENTERS OF GRAVITY, OPERATING AND CORNER WEIGHTS, SEE FIG. 13.
311.28 [7906.6]
85.09 [2161]
161.66 [4106]
133.69 [3396]
42.56
[1081]
65.91
[1674]
45.06
[1145]
41.72 [1060]
20.18 [513]
2.10 [53]
82.02 [2083]
2.99 [76]
7/8" DIA [22]
LOW VOLTAGE
78.60 [1997]
94.00 [2388]
91.50 [2324]
88.00 [2235]
49.53
[1258]
30.12 [765]
22.72 [577]
88.24 [2241]
TOP COVERS
10.49 [266]
50.00 [1270]
50.00 [1270]
50.00 [1270]
2.57 [65]
2.57 [65]
1"[25] NPT DRAIN CONN
1.375 DIA [35]
34.46 [875]
70.05 [1779]
29.40 [747]
24.40 [620]
8.05 [204]
44.28 [1125]
9.56 [243]
13.88 [353]
0.75 NPT LOW VOLTAGE [19] 3.50 NPT FIELD POWER
[89]
24
[613]
24
[613]
15.53 [395]
15.93 [405]
8.60
[218]
162.90 [4138]
17.47 [444]
43.43
[1103]
92.63
[23.53]
141.86
[36.03]
7.50
[190]
19.06 [484]
17.91 [455]
42.31
[1075]
18.25 [464]
45.44
[1154]
OPENING
31.25 [795]
OPENING
HOOD REMOVED
DAMPER OPENING
WITH HOOD
WITH PANEL
PANEL REMOVED
VIEW A-A
NO POWER EXHAUST OR BAROMETRIC RELIEF
INDOOR BLOWER ACCESS PANEL
HEAT SECTION ACCESS PANEL
MCHX COILS
V F D
OVERALL LIFTING SHIPPING DIM
LIFTING POSITION
BASE FRAME
TYP 4 PLACES
ECONOMIZER HOODS (HOODS FIELD INSTALLED) (INCLUDED WITH UNIT) 3 REQ'D
INDOOR MOTOR ACCESS DOOR (HINGED)
FILTER/AUX CONTROL BOX ACCESS DOOR (HINGED)
SUPPLY AIR
ECON AIR
AUXILIARY
CONTROL
BOX
EXHAUST AIR
POWER EXHAUST OR BAROMETRIC
RELIEF HOODS
OPTION
3 REQ'D
2.50 [64] NPT GAS INLET HOLE
MAIN CONTROL BOX
V F D
A
A
RETURN SUPPLY
ACCESS DOORS (HINGED) CONTROL BOX / COMPRESSOR
INSIDE BASE RAILS
RETURN AIR
3" DIA [76] FIELD WIRING (2)
LIFTING LUG
HOLE IN
WIND CAP (FIELD INSTALLED)

13
Fig. 10 — Base Unit Dimensions MCHX, Side Supply and Return — 48A4,A5,A8,A9060
311.28 [7906.6]
85.09 [2161]
161.66 [4106]
133.69 [3396]
42.56
[1081]
65.91
[1674]
45.06
[1145]
41.72 [1060]
20.18 [513]
2.10 [53]
82.02 [2083]
2.99 [76]
7/8" DIA [22]
LOW VOLTAGE
78.60 [1997]
94.00 [2388]
91.50 [2324]
88.00 [2235]
49.53
[1258]
30.12 [765]
22.72 [577]
88.24 [2241]
TOP COVERS
10.49 [266]
50.00 [1270]
50.00 [1270]
50.00 [1270]
2.57 [65]
2.57 [65]
1"[25] NPT DRAIN CONN
1.375 DIA [35]
34.46 [875]
70.05 [1779]
29.40 [747]
24.40 [620]
8.05 [204]
44.28 [1125]
9.56 [243]
13.88 [353]
0.75 NPT LOW VOLTAGE [19] 3.50 NPT FIELD POWER
[89]
6.97 [177.0]
13.20
[335.3]
5.12 [130.0]
12.93 [328.3]
150.47 [3822.0]
12.63
[320.8]
43.43
[1103]
92.63
[23.53]
141.86
[36.03]
7.50
[190]
19.06 [484]
17.91 [455]
VIEW A-A
INDOOR BLOWER ACCESS PANEL
HEAT SECTION ACCESS PANEL
MCHX COILS
V F D
OVERALL LIFTING SHIPPING DIM
LIFTING POSITION
BASE FRAME
TYP 4 PLACES
ECONOMIZER HOODS (HOODS FIELD INSTALLED) (INCLUDED WITH UNIT) 3 REQ'D
INDOOR MOTOR ACCESS DOOR (HINGED)
FILTER/AUX CONTROL BOX ACCESS DOOR (HINGED)
RETURN AIR
SUPPLY AIR
ECON
A
IR
AUXILIARY
CONTROL
BOX
2.50 [64] NPT GAS INLET HOLE
MAIN CONTROL BOX
V F D
A
A
ACCESS DOORS (HINGED) CONTROL BOX / COMPRESSOR
INSIDE BASE RAILS
3" DIA [76] FIELD WIRING (2)
LIFTING LUG
HOLE IN
WIND CAP (FIELD INSTALLED)
FOR CENTERS OF GRAVITY, OPERATING AND CORNER WEIGHTS, SEE FIG. 13.

14
70.75
[1797]
65.91
[1674]
45.06
[1145]
41.72
[1060]
34.46 [875]
30.12 [765]
78.60
[1997]
TYP 4 PLACES
AUXILIARY
CONTROL
BOX
ECONOMIZER HOODS (HOODS FIELD INSTALLED) (INCLUDED WITH UNIT) 3 REQ'D
ACCESS DOORS (HINGED) CONTROL BOX / COMPRESSOR
INDOOR MOTOR ACCESS DOOR (HINGED)
FILTER/AUX CONTROL BOX ACCESS DOOR (HINGED)
HEAT SECTION ACCESS PANEL
INDOOR BLOWER ACCESS PANEL
CONDENSER COIL BOTH SIDES
3" DIA [76] FIELD WIRING (2)
7/8' DIA [22]
LOW VOLTAGE
ECON
AIR
RETURN
AIR
1" [25] NPT DRAIN CONN
BASE FRAME
LIFTING POSITION
OVERALL LIFTING
SHIPPING DIM
MAIN CONTROL BOX
INSIDE BASE RAILS
1.375 [35] DIA
HOLE IN
LIFTING LUG
V F D
V F D
VIEW A-A
A
A
3.50 [89] NPT FIELD POWER
SUPPLY
AIR
.75 [19] NPT LOW VOLTAGE
73.12
[1857]
42.56
[1081]
20.18 [513]
2.10 [53]
82.02
[2083]
2.99 [76]
8.05 [204]
24.40 [620]
29.40 [747]
85.09
[2161]
311.28
[7906.6]
22.72 [577]
94.00
[2388]
91.50
[2324]
88.00
[2235]
49.53
[1258]
133.69 [3396]
88.24 TOP COVERS
[2241]
10.49 [266]
50.00
[1270]
2.57 [65]
50.00
[1270]
2.57 [65]
50.00
[1270]
161.66 [4106]
6.97 [177.0]
13.20
[335.3]
5.12 [130.0]
12.93 [328.3]
150.47 [3822.0]
12.63
[320.8]
9.56 [243]
13.88 [353]
44.28
[1125]
LOW SOUND OUTDOOR FAN OPTION ONLY
(ALL FAN POSITIONS)
STANDARD OUTDOOR FAN
Fig. 11 — Base Unit Dimensions RTPF, Cu Tube Condenser Side Supply and Return — 48A4,A5,A8,A9060
FOR CENTERS OF GRAVITY, OPERATING AND CORNER WEIGHTS, SEE FIG. 13.

15
85.09
[2161]
311.28
[7906.6]
88.24 TOP COVERS
[2241]
10.49 [266]
50.00
[1270]
2.57 [65]
50.00
[1270]
2.57 [65]
50.00
[1270]
161.66 [4106]
9.56 [243]
13.88 [353]
44.28
[1125]
78.60
[1997]
42.31
[1075]
18.25 [464]
31.25 [795]
OPENING
45.44
[1154]
OPENING
94.00
[2388]
91.50
[2324]
88.00
[2235]
49.53
[1258]
30.12 [765]
22.72 [577]
1"[25] NPT DRAIN CONN
133.69 [3396]
42.56
[1081]
65.91
[1674]
45.06
[1145]
41.72 [1060]
20.18 [513]
2.10 [53]
82.02 [2083]
2.99 [76]
7/8" DIA [22]
LOW VOLTAGE
78.60 [1997]
1.375 DIA [35] 34.46
[875]
70.05 [1779]
29.40 [747]
24.40 [620]
8.05 [204]
17.47 [444]
162.90 [4138]
8.60
[218]
15.93 [405]
24
[613]
15.53 [395]
24
[613]
HEAT SECTION ACCESS PANEL
INDOOR BLOWER ACCESS PANEL
CONDENSER COIL BOTH SIDES
MAIN CONTROL BOX
V F D
V F D
A
A
3.50 [89] NPT FIELD POWER
.75 [19] NPT LOW VOLTAGE
LOW SOUND OUTDOOR FAN OPTION ONLY
(ALL FAN POSITIONS)
STANDARD OUTDOOR FAN
HOOD REMOVED
DAMPER OPENING
WITH HOOD
WITH PANEL
PANEL REMOVED
VIEW A-A
NO POWER EXHAUST OR BAROMETRIC RELIEF
OVERALL LIFTING SHIPPING DIM
LIFTING POSITION
BASE FRAME
TYP 4 PLACES
ECONOMIZER HOODS (HOODS FIELD INSTALLED) (INCLUDED WITH UNIT) 3 REQ'D
INDOOR MOTOR ACCESS DOOR (HINGED)
FILTER/AUX CONTROL BOX ACCESS DOOR (HINGED)
RETURN AIR
SUPPLY AIR
ECON AIR
AUXILIARY
CONTROL
BOX
EXHAUST AIR
POWER EXHAUST OR BAROMETRIC
RELIEF HOODS
OPTION
3 REQ'D
ACCESS DOORS (HINGED) CONTROL BOX / COMPRESSOR
INSIDE BASE RAILS
3" DIA [76] FIELD WIRING (2)
LIFTING LUG
HOLE IN
RETURN SUPPLY
Fig. 12 — Base Unit Dimensions RTPF, CU Tube Condenser Bottom Supply and Return — 48A2,A3,A6,A7060
FOR CENTERS OF GRAVITY, OPERATING AND CORNER WEIGHTS, SEE FIG. 13.

16
Fig. 13 — Center of Gravity and Weights — 48A060
A
B
NOTES: 1. WEIGHTS INCLUDE ECONOMIZER OR OUTDOOR AIR DAMPER. 2. CENTER OF GRAVITY.
3. FOR MULTIPLE UNIT APPLICATIONS SEE LITERATURE. 4. UNIT CLEARANCES: TOP OF UNITS: NO OVERHANG CU TUBE CONDENSER COIL: 4'-0" [1219] HEAT SIDE: 4'-0" [1219] FILTER ACCESS SIDE: 15'-0" [4572] (FOR REMOVAL OF EVAPORATOR COIL) 5. FOR SMALLER SERVICE AND OPERATIONAL
CLEARANCES, CONTACT CARRIER APPLICATION
ENGINEERING DEPARTMENT. 6. BOTTOM DUCTS DESIGNED TO BE ATTACHED TO ACCESSORY ROOF CURB. IF UNIT IS MOUNTED ON DUNNAGE, IT IS RECOMMENDED THE DUCTS MUST BE SUPPORTED BY CROSS BRACES AS DONE ON ACCESSORY ROOF CURB. 7. BASE UNIT WEIGHTS INCLUDE OUTDOOR AIR HOODS, AND FILTERS (INDOOR FAN MOTOR IS NOT INCLUDED). ADD INDOOR MOTOR, FIOPS AND ACCESSORIES FOR TOTAL OPERATING WEIGHT. 8. VAV MOTOR WEIGHTS INCLUDE INDOOR MOTOR, VFD, VFD TRANSDUCER AND ASSOCIATED WIRING. 9. DIMENSIONS IN [ ] ARE IN MILLIMETERS, KILOGRAMS OR KILOWATTS. 10. FOR SIDE-SUPPLY/RETURN APPLICATIONS, A SINGLE RETURN AND SUPPLY DUCTWORK CONNECTION IS RECOMMENDED FOR COVERING ALL THREE RETURN AND ALL THREE SUPPLY OPENINGS. THE ENTIRE AREA AROUND THE DUCT OPENINGS IS AVAILABLE FOR A 1.5" DUCT FLANGE ATTACHMENT.
UNIT SIZE
OPERATING
WEIGHT
CENTER OF GRAVITY CORNER WEIGHT (LB)
AB
LBS FT/IN FT/IN 1 2 3 4
48A2/A3/A6/A7 (D,M,S) 060 8386 14 - 9 5/8" 3 - 5 1/4" 1909 1693 2243 2541
48A2/A3/A6/A7 (E,N,T) 060 8626 14 - 2 3/8" 3 - 3 1/4" 2159 1745 2100 2622
48A4/A5/A7/A8 (D,M,S) 060 8426 14 - 1 5/8" 3 - 9 1/4" 1763 2072 2259 2333
48A4/A5/A7/A8 (E,N,T) 060 8676 13 - 7 1/4" 3 - 7 1/4" 2000 2126 2134 2417
50A2/A3/A6/A7 060 8311 15 - 5" 3 - 7 3/8" 1710 1663 2433 2504
50A4/A5/A7/A8 060 8526 14 - 8 1/2" 3 - 11 1/8" 1613 2078 2484 2351
BASE UNIT WEIGHTS (SEE NOTE 7)
LB (Kg)
060
48A2D/A3D/A6D/A7D 7066 (3205)
48A2E/A3E/A6E/A7E 7306 (3314)
48A4D/A5D/A8D/A9D 7106 (3223)
48A4E/A5E/A8E/A9E 7356 (3337)
50A2/A3/A6E/A7E 6826 (3096) 50A4/A5/A8E/A9E 7041 (3194)
OPTIONS / ACCESSORIES (SEE NOTE 7)
BAROMETRIC RELIEF 450 (204)
NON MOD. POWER EXHAUST 675 (306)
MOD. POWER EXHAUST 725 (329)
ELECTRIC HEAT 165 (75)
CU TU/AL FIN COND COIL 26 (12)
CU TU/CU FIN COND COIL 677 (307)
CV MOTOR WEIGHTS
LB (Kg)
VAV MOTOR WEIGHTS
LB (Kg) (SEE NOTE 8)
HIGH
EFFC'Y IFM
PREMIUM
EFFC'Y IFM
HIGH
EFFC'Y IFM
PREMIUM
EFFC'Y IFM
25 HP
(18.65 kW)
230/460 240 (109) 309 (140) 375 (170) 444 (201)
575 240 (109) 319 (145) 375 (170) 454 (206)
30 HP
(22.38 kW)
230/460 283 (128) 355 (161) 418 (190) 490 (222)
575 283 (128) 359 (163) 418 (190) 494 (224)
40 HP
(29.84 kW)
230/460 372 (169) 415 (188) 507 (230) 550 (249)
575 372 (169) 410 (186) 507 (230) 545 (247)
UNIT SIZE
OPERATING
WEIGHT
CENTER OF GRAVITY CORNER WEIGHT (kg)
AB
KG MM MM 1 2 3 4
48A2/A3/A6/A7 (D,M,S) 060 3804 4511 1049 866 768 1017 1153
48A2/A3/A6/A7 (E,N,T) 060 3913 4329 996 979 792 953 1189
48A4/A5/A7/A8 (D,M,S) 060 3822 4309 1149 800 940 1024 1058
48A4/A5/A7/A8 (E,N,T) 060 3936 4147 1097 907 964 968 1096
50A2/A3/A6/A7 060 3770 4698 1102 776 755 1104 1136
50A4/A5/A7/A8 060 3868 4484 1196 732 942 1127 1066
1
2
4
3
OFM#4OFM#2
OFM#3OFM#1
ECONOMIZER SIDE: 6'-0" [1829] (FOR TUBE CONDENSER COILS) 8'-0" [2438] (FOR REMOVAL OF MCHX CONDENSER COILS)

17
Table 1 — Physical Data — 48A Units
LEGEND *Sizes 020 to 027: Circuit 1 uses the lower portion of condenser coil,
Circuit 2 uses the upper portion.
Sizes 030 and 035: Circuit 1 uses the upper portion of condenser coil,
Circuit 2 uses the lower portion.
Sizes 040 and 050: Circuit 1 uses the left condenser coil, Circuit 2 the right.
Size 060: Circuit A uses the two MCHX coils near the bulkhead, Circuit B uses the
two MCHX coils near the control box.
† Rollout switch is manual reset.
UNIT 48A 020D/E 025D/E 027D/E 030D/E
NOMINAL CAPACITY (tons) 20 25 27 30
BASE UNIT See Unit Weights Table
OPERATING WEIGHT (lb)
COMPRESSOR
Quantity ... Type (Ckt 1/Ckt 2) 2 ... ZP67/1…ZP91 2 ... ZP91/1…ZP91 2 ... ZP91/1…ZP91 2…ZP72, 2…ZP72
Number of Refrigerant Circuits 2222
Oil Precharged Precharged Precharged Precharged
REFRIGERANT R-410A
Operating Charge (lb), Ckt 1/Ckt 2
RTPF Coils 26.2/18.8 30.2/15.2 32.8/16.5 30.5/34.3
MCHX Coils 14.9/11.8 16.5/11.0 16.5/11.0 15.1/15.3
MCHX Coils with Humidi-MiZer® Coil 22.1/11.8 23.7/11.0 23.7/11.0 15.1/22.5
MCHX CONDENSER*
Quantity 1111
Total Face Area (sq ft) 32.9 32.9 32.9 32.9
RTPF CONDENSER
Quantity 1111
Rows...Fins/in. 2...15 3...15 3...15 4...15
Total Face Area (sq ft) 33.3 33.3 33.3 33.3
CONDENSER FAN Propeller Type
Nominal Cfm 19,500 19,500 19,500 19,500
Quantity... Diameter (in.) 2 ... 30 2 ... 30 2 ... 30 2 ... 30
Motor Hp 1111
EVAPORATOR COIL Cross-Hatched Copper Tubes, Aluminum Plate Fins with Intertwined Circuits
Tube Size (in.) 3/83/83/83/8
Rows ... Fins/in. 3 ... 15 4 ... 14 4 ... 15 4 ... 15
Total Face Area (sq ft) 31.7 31.7 31.7 31.7
HUMIDI-MIZER COIL
Quantity 1111
Face Area (sq ft) 14.4 14.4 14.4 14.4
EVAPORATOR FAN Centrifugal Type
Quantity ... Size (in.) 2 ... 20 X 15 2 ... 20 X 15 2 ... 20 X 15 2 ... 20 X 15
Type Drive Belt Belt Belt Belt
Nominal Cfm 8,000 10,000 11,000 12,000
Motor Hp 5 10 15 5 10 15 10 15 20 10 15 20
Motor Frame Size 184T 215T 254T 184T 215T 254T 215T 254T 256T 215T 254T 256T
Motor Bearing Type Ball Ball Ball Ball
Maximum Allowable Rpm 1200 1200 1200 1200
Motor Pulley Pitch Diameter 4.8 4.4 5.7 5.2 6.1 5.5 4.4 4.9 5.9 4.4 5.7 5.9
Nominal Motor Shaft Diameter (in.) 11/813/815/811/813/815/813/815/815/813/815/815/8
Fan Pulley Pitch Diameter (in.) 12.4 8.6 9.1 12.4 11.1 8.7 9.4 8.1 8.7 9.0 9.1 8.7
Nominal Fan Shaft Diameter (in.) 115/16 115/16 115/16 115/16
Belt Quantity 122112222222
Belt Type BX56 BX50 5VX530 BX56 5VX570 5VX530 BX50 5VX500 5VX530 BX50 5VX530 5VX530
Belt Length (in.) 56 63 53 56 57 53 50 50 53 50 53 53
Pulley Center Line Distance (in.) 16.0-18.7 15.6-18.4 15.0-17.9 15.6-18.4 15.6-
18.4
15.0-
17.9
15.6-
18.4 15.0-17.9 15.0-17.9 15.6-18.4 15.0-17.9 15.0-17.9
Factory Speed Setting (rpm) 717 924 1096 773 962 1106 848 1059 1187 856 1096 1187
FURNACE SECTION
Supply Line Pressure Range 5.0-in. wg min/13.5-in. wg max.
Rollout Switch Cutout
Temp (F)† 225 225 225 225
Burner Orifice Diameter (in. ...drill
size)
Natural Gas Std .111 ... 34 .111 ... 34 .111 ... 34 .111 ... 34
Liquid Propane Alt .089 ... 43 .089 ... 43 .089 ... 43 .089 ... 43
Thermostat Heat Anticipator Setting
Stage 1 (amps) 0.1 0.1 0.1 0.1
Stage 2 (amps) 0.1 0.1 0.1 0.1
Gas Input (Btuh) Stage 1
(Low Heat/High Heat) 262,500/394,000 262,500/394,000 262,500/394,000 262,500/394,000
Stage 2
(Low Heat/High Heat) 350,000/525,000 350,000/525,000 350,000/525,000 350,000/525,000
Efficiency (Steady State) (%) 81 81 81 81
Temperature Rise Range (F) 15-45/35-65 15-45/35-65 15-45/35-65 15-45/35-65
Manifold Pressure (in. wg)
Natural Gas Std 3.5 3.5 3.5 3.5
Liquid Propane Alt 3.5 3.5 3.5 3.5
Gas Valve Quantity 2222
HIGH-PRESSURE SWITCH (psig)
Cutout 650 650 650 650
Reset (Auto.) 500 500 500 500
MIXED-AIR FILTERS
Quantity ... Size (in.) Standard 10 ... 20 x 24 x 2 10 ... 20 x 24 x 2 10 ... 20 x 24 x 2 10 ... 20 x 24 x 2
Pleated 5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
OUTDOOR-AIR FILTERS
Quantity...Size (in.) 8...16 x 25 x 2
4...20 x 25 x 2
POWER EXHAUST Direct Drive, Single-Phase Motors (Factory-Wired for High Speed Operation), Forward-Curved Fan Wheels
with Backdraft Dampers on Each Fan Housing
Motor, Quantity...Hp 4...1
Fan, Diameter...Width (in.) 11 x 10
Al — Aluminum
Cu — Copper
MCHX— Microchannel Heat Exchanger
RTPF — Round Tube Plate Fin

18
Table 1 — Physical Data — 48A Units (cont)
LEGEND *Sizes 020 to 027: Circuit 1 uses the lower portion of condenser coil,
Circuit 2 uses the upper portion.
Sizes 030 and 035: Circuit 1 uses the upper portion of condenser coil,
Circuit 2 uses the lower portion.
Sizes 040 and 050: Circuit 1 uses the left condenser coil, Circuit 2 the right.
Size 060: Circuit A uses the two MCHX coils near the bulkhead, Circuit B uses the
two MCHX coils near the control box.
† Rollout switch is manual reset.
UNIT 48A 035D/E 040D/E 050D/E 060D/E
NOMINAL CAPACITY (tons) 35 40 50 60
BASE UNIT See Unit Weights Table
OPERATING WEIGHT (lb)
COMPRESSOR
Quantity ... Type (Ckt 1/Ckt 2) 2 ... ZP67/2...ZP104 2...ZP104/2...ZP104 2…ZP122/2…ZP122 2…ZP154/2…ZP154
Number of Refrigerant Circuits 2222
Oil Precharged Precharged Precharged Precharged
REFRIGERANT R-410A
Operating Charge (lb), Ckt 1/Ckt 2
RTPF Coils 28.7/44.0 44.0/44.0 56.3/57.3 78.5/82.0
MCHX Coils 17.9/26.0 23.0/23.5 27.0/28.0 36.6/37.8
MCHX Coils with Humidi-MiZer® Coil 17.9/31.5 23.0/30.5 26.5/34.5 36.6/47.6
MCHX CONDENSER*
Quantity 1224
Total Face Area (sq ft) 32.9 65.8 65.8 105.2
RTPF CONDENSER
Quantity 1222
Rows...Fins/in. 4...15 3...15 4...15 6...30
Total Face Area (sq ft) 33.3 66.7 66.7 100.0
CONDENSER FAN Propeller Type
Nominal Cfm 19,500 32,000 35,000 40,000
Quantity... Diameter (in.) 2 ... 30 4 ... 30 4 ... 30 4...30.5(MCHX),
6...30(RTPF)
Motor Hp 1111
EVAPORATOR COIL Cross-Hatched Copper Tubes, Aluminum Plate Fins with Intertwined Circuits
Tube Size (in.) 1/21/21/21/2
Rows ... Fins/in. 6 ... 16 4 ... 17 6 ... 16 4...17
Total Face Area (sq ft) 31.3 31.3 31.3 48.1
HUMIDI-MIZER COIL
Quantity 1111
Face Area (sq ft) 14.4 14.4 14.4 14.1
EVAPORATOR FAN Centrifugal Type
Quantity ... Size (in.) 2 ... 20 X 15 2 ... 20 X 15 2 ... 20 X 15 3 ... 20 X 15
Type Drive Belt Belt Belt Belt
Nominal Cfm 14,000 16,000 18,000 24,000
Motor Hp 15 20 25 15 20 25 20 25 30 25 30 40
Motor Frame Size 254T 256T 284T 254T 256T 284T 256T 284T 286T 284T 286T 324T
Motor Bearing Type Ball Ball Ball Ball
Maximum Allowable Rpm 1300 1300 1300 1200
Motor Pulley Pitch Diameter (in.) 5.1 5.7 6.2 5.3 5.7 7.5 5.7 6.2 6.7 5.3 5.9 6.5
Nominal Motor Shaft Diameter (in.) 15/815/817/815/815/817/815/817/817/817/817/821/8
Fan Pulley Pitch Diameter (in.) 8.7 8.7 8.7 9.5 9.5 11.1 9.5 9.5 9.5 9.1 9.5 9.5
Nominal Fan Shaft Diameter (in.) 115/16 115/16 115/16 115/16
Belt Quantity 222222222333
Belt Type 5VX500 5VX530 5VX550 5VX530 5VX550 5VX590 5VX550 5VX570 5VX570 5VX530 5VX550 5VX570
Belt Length (in.) 50 53 55 53 55 59 55 57 57 53 55 57
Pulley Center Line Distance (in.) 15.0-
17.9
15.0-
17.9
15.0-
17.9
15.0-
17.9
15.0-
17.9
14.6-
17.6
15.0-
17.9
14.6-
17.6
14.6-
17.6
15.2-
17.5
14.7-
17.2
14.2-
17.0
Factory Speed Setting (rpm) 1025 1147 1247 976 1050 1182 1050 1142 1234 1019 1087 1197
FURNACE SECTION
Supply Line Pressure Range 5.0-in. wg min/13.5-in. wg max.
Rollout Switch Cutout
Temp (F)† 225 225 225 225
Burner Orifice Diameter (in ...drill size)
Natural Gas Std .111 ... 34 (low)/.120 ... 31
(high) .120 ... 31 .120 ... 31 .120...31
Liquid Propane Alt .089 ... 43 .096 ... 41 .096 ... 41 .096...41
Thermostat Heat Anticipator Setting
Stage 1 (amps) 0.1 0.24 0.1 0.1
Stage 2 (amps) 0.1 0.13 0.1 0.1
Gas Input (Btuh) Stage 1
(Low Heat/High Heat) 262,500/600,000 300,000/600,000 300,000/600,000 582,000/873,000
Stage 2
(Low Heat/High Heat) 350,000/800,000 400,000/800,000 400,000/800,000 776,000/1,164,000
Efficiency (Steady State) (%) 81 81 81 81
Temperature Rise Range (F) 15-45/30-60 10-40/30-60 10-40/30-60 10-40/30-60
Manifold Pressure (in. wg)
Natural Gas Std 3.5 3.5 3.5 3.3
Liquid Propane Alt 3.5 3.5 3.5 3.3
Gas Valve Quantity 2223
HIGH-PRESSURE SWITCH (psig)
Cutout 650 650 650 650
Reset (Auto.) 500 500 500 500
MIXED-AIR FILTERS
Quantity ... Size (in.) Standard 10 ... 20 x 24 x 2 10 ... 20 x 24 x 2 10 ... 20 x 24 x 2 16...20 x 24 x 2
8...20 x 20 x 4
8...20 x 24 x 4
Pleated 5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
5 ... 20 x 20 x 4
5 ... 20 x 24 x 4
OUTDOOR-AIR FILTERS
Quantity...Size (in.) 8...16 x 25 x 2
4...20 x 25 x 2
8...16 x 25 x 2
4...20 x 25 x 2
8...16 x 25 x 2
4...20 x 25 x 2
12...16 x 25 x 2
6...20 x 25 x 2
POWER EXHAUST Direct Drive, Single-Phase Motors (Factory-Wired for High Speed Operation), Forward-Curved Fan Wheels
with Backdraft Dampers on Each Fan Housing
Motor, Quantity...Hp 4...1
11 x 10
4...1
11 x 10
4...1
11 x 10
6...1
11 x 10Fan, Diameter...Width (in.)
Al — Aluminum
Cu — Copper
MCHX— Microchannel Heat Exchanger
RTPF — Round Tube Plate Fin

19
Fig. 14 — Rigging Information
NOTE: Add 312 lbs (142 kg) for export crating. (027-035 units) Add 346 lbs (157 kg) for export crating. (040-050 units) Add 588 lbs (266 kg) for export crating. (060 units) Add the weights shown below for round tube plate fin coils
50EJ500305 REV 2.0
Unit Size ---------- 027 030-035 040 050 060
Copper Tube/Aluminum Fin Cond Coil 105 lbs (48 kg) 160 lbs (72 kg) 192 lbs (87 kg) 317 lbs (144 kg) 26 lbs (12 kg)
Copper Tube/Copper Fin Cond.Coil 268 lbs (122 kg) 377 lbs (171 kg) 518 lbs (235 kg) 751 lbs (341 kg) 677 lbs (307 kg)
The weight distribution and center of gravity information are representative of a standard unit and include the impact of factory installed economizer, largest IFM motor & VFD, modulating power exhaust (both factory installed and field installed options), and electric heat (on 50A only).
LBS
4854 4944 5024 4932 4984 5064 4834 4924 5004 4912 4964 5044 5121 5326 5486 5314 5366 5526 5559 5764 5924 5752 5804 5964 5744 5949 6109 5937 5989 6149 8311 8386 8626 8526 8426 8676
KGS
2202 2243 2279 2237 2261 2297 2193 2233 2270 2228 2252 2288 2323 2416 2489 2411 2434 2507 2521 2614 2687 2609 2633 2705 2606 2699 2771 2693 2717 2789 3770 3804 3913 3868 3822 3936
INCHES
87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7
161.7 161.7 161.7 161.7 161.7 161.7
MM
2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 2227
2227 2227 2227 2227 2227 2227 2227 2227 2227 2227 4106 4106 4106 4106 4106 4106
INCHES
97.2 96.1 95.6
93.6 92.7 92.3
95.2 94.0 93.6
91.6 90.6 90.3 95.9 94.8 94.2 92.7 91.7 91.3
121.8 120.3 118.8 116.5 115.1 113.9 119.5 118.1 116.6 114.3 112.9 111.7
184.9 177.6 170.4 176.5 169.6 163.3
MM
2469 2441 2428 2379 2354 2344 2417 2389 2376 2327 2302 2293 2436 2408 2394 2354 2329 2318 3094 3056 3018 2958 2924 2893 3035 2999 2962 2904 2868 2837 4698 4511 4329 4484 4309 4147
INCHES
44.1 43.7 43.4 48.4 48.0 47.7 44.4 44.0 43.7 48.8 48.3 48.0 41.4 41.0 40.7 45.7 45.3 44.9
41 41 41
45.4 44.9 44.6
42 41 41
45.5 45.1 44.7
43 41 39
47.1
45.2 43.2
MM
1120 1110 1102 1230 1220 1211 1128 1118 1110 1238 1228 1219 1053 1042 1035 1162 1151 1141 1052 1041 1033 1152 1142 1132 1059 1048 1040 1156 1145 1135 1102 1049
996
1196 1149 1097
50A2/A3/A6/A7 027
48A2/A3/A6/A7D 027 48A2/A3/A6/A7E 027
50A4/A5/A8/A9 027
48A4/A5/A8/A9D 027
48A4/A5/A8/A9E 027 50A2/A3/A6/A7 030
48A2/A3/A6/A7D 030
48A2/A3/A6/A7E 030
50A4/A5/A8/A9 030 48A4/A5/A8/A9D 030 48A4/A5/A8/A9E 030
50A2/A3/A6/A7 035 48A2/A3/A6/A7D 035 48A2/A3/A6/A7E 035 50A4/A5/A8/A9 035 48A4/A5/A8/A9D 035 48A4/A5/A8/A9E 035
50A2/A3/A6/A7 040
48A2/A3/A6/A7D 040 48A2/A3/A6/A7E 040
50A4/A5/A8/A9 040
48A4/A5/A8/A9D 040
48A4/A5/A8/A9E 040 50A2/A3/A6/A7 050
48A2/A3/A6/A7D 050 48A2/A3/A6/A7E 050
50A4/A5/A8/A9 050
48A4/A5/A8/A9D 050 48A4/A5/A8/A9E 050 50A2/A3/A6/A7 060 48A2/A3/A6/A7D 060 48A2/A3/A6/A7E 060
50A4/A5/A8/A9 060
48A4/A5/A8/A9D 060 48A4/A5/A8/A9E 060
MODEL BCWEIGHT A

20
Table 2 — Unit Operating Weights* (lb)
Table 3 — Option and Accessory Weights (lb)
Table 4 — Constant Volume Fan
Motor Weights (lb)
Table 5 — Variable Air Volume / Staged Air Volume
Fan Motor Weights (lb)
LEGEND AND NOTES FOR TABLES 2-5
LEGEND *Outdoor-air hoods and filters included in base unit weights; indoor-
fan motors are NOT included.
NOTES:
1. Base unit weight includes OA hoods (economizer or outdoor air
damper); does not include an indoor-fan motor. ADD indoor
motor, FIOPs and accessories for TOTAL operating weight.
2. VAV/SAV™ motor weights include the indoor motor and the VFD,
optional VFD bypass, VFD transducer, and associated wiring.
UNIT SIZE 020 025 027 030 035 040 050 060
48A2D,A3D,A6D,A7D 3825 3961 3961 3992 4340 4770 4914 7066
48A2E,A3E,A6E,A7E 3905 4041 4041 4072 4500 4930 5074 7306
48A4D,A5D,A8D,A9D 3865 4001 4001 4032 4380 4810 4954 7106
48A4E,A5E,A8E,A9E 3945 4081 4081 4112 4540 4970 5114 7356
UNIT SIZE 020 025 027 030 035 040 050 060
OPTIONS/ACCESSORIES (WEIGHT ADDERS) (lb)
Barometric Relief 300 300 300 300 300 300 300 450
Non-Modulating Power Exhaust 450 450 450 450 450 450 450 675
Modulating Power Exhaust 500 500 500 500 500 500 500 725
Electric Heat 110 110 110 110 110 110 110 165
Cu Tube/Aluminum Fin Condenser Coil 100 100 100 150 150 187 317 26
Cu Tube/Cu Fin Condenser Coil 263 263 263 370 370 512 751 677
OA Hood Crate/Packaging
(Less Hoods’ Weight)
45 45 45 45 45 45 45 45
(Packaging Only)
Outdoor Air Hoods/Filters (included with unit) 170 170 170 170 170 170 170 255
Hail Guards 73 73 73 73 73 146 146 219
Roof Curb (14-in.) 365 365 365 365 365 410 410 540
Double Wall 275 275 275 275 275 275 275 375
Humidi-MiZer®Coil 150 150 150 150 150 180 180 195
MOTOR HP UNIT VOLTAGE
PREMIUM
EFFICIENCY
IFM
5 HP
230/460 80
380 75
575 80
10 HP
230/460 126
380 120
575 126
15 HP
230/460 217
380 155
575 217
20 HP
230/460 250
380 185
575 250
25 HP
230/460 309
380 225
575 309
30 HP
230/460 303
380 283
575 303
40 HP
230/460 551
380 601
575 551
MOTOR HP UNIT VOLTAGE
PREMIUM
EFFICIENCY
IFM
5 HP
230/460 138
380 133
575 149
10 HP
230/460 195
380 198
575 195
15 HP
230/460 316
380 254
575 319
20 HP
230/460 385
380 320
575 357
25 HP
230/460 444
380 360
575 454
30 HP
230/460 338
380 318
575 342
40 HP
230/460 686
380 736
575 686
Cu — Copper
FIOP — Factory-Installed Option
HP — Horsepower
IFM — Indoor-Fan Motor
OA — Outdoor Air
SAV — Staged Air Volume
VAV — Variable Air Volume
VFD — Variable Frequency Drive