Carrier 48HG014-028 Specifications

48HG014-028
Single Package Rooftop Units
Electric Cooling/Gas Heating
Installation, Start-Up and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Step 1 — Provide Unit Support . . . . . . . . . . . . . . . . . . . 1
• ROOF CURB
• ALTERNATE UNIT SUPPORT
Step 2 — Remove Shipping Rails . . . . . . . . . . . . . . . . 3
Step 3 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 3
• POSITIONING
• ROOF MOUNT
• INSTALLATION ONTO CURB
Step 4 — Field Fabricate Ductwork . . . . . . . . . . . . . . . 7
Step 5 — Make Unit Duct Connections . . . . . . . . . . . 7
Step 6 — Install Flue Hood and Inlet Hood . . . . . . . 8
Step 7 — Trap Condensate Drain . . . . . . . . . . . . . . . . . 8
Step 8 — Install Gas Piping . . . . . . . . . . . . . . . . . . . . . . 8
Step 9 — Make Electrical Connections . . . . . . . . . . . 9
• FIELD POWER SUPPLY
• FIELD CONTROL WIRING
Step 10 — Install Outdoor-Air Hood . . . . . . . . . . . . . 10
Step 11 — Make Outdoor-Air Inlet Adjustments . . 10
Step 12 — Position Optional Power
Exhaust or Barometric Relief Damper Hood. . . . 15
Step 13 — Install All Accessories . . . . . . . . . . . . . . . . 15
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-40
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-49
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . 50-52
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, 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, observe
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.
1. Improper installation, adjustment, alteration, service,
or maintenance can cause property damage, personal
injury, or loss of life. Refer to the User’s Information
Manual provided with this unit for more details.
2. 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 neighbor’s phone. Follow the gas supplier’s instructions.
4. If you cannot reach your gas supplier, call the fire
department.
Disconnect gas piping from unit when pressure testing at
pressure 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).
IMPORTANT: Units have high ambient operating limits. If limits are exceeded, the units will automatically
lock the compressor out of operation. Manual reset will
be required to restart the compressor.
INSTALLATION
Step 1 — Provide Unit Support
ROOF CURB — Assemble or install accessory roof curb in
accordance with instructions shipped with this accessory. See
Fig. 1. Install insulation, cant strips, roofing, and counter flashing as shown. Ductwork can be installed to roof curb before
unit is set in place. Curb must be level. This is necessary to
permit unit drain to function properly. Unit leveling tolerance is
± 1/16 in. per linear ft in any direction. Refer to Accessory Roof
Curb Installation Instructions for additional information as required. When accessory roof curb is used, unit may be installed
on class A, B, or C roof covering material.
Before performing service or maintenance operations on
unit, turn off main power switch to unit. Electrical shock
could cause personal injury.
Instructions continued on page 3.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 534-80027
Printed in U.S.A.
Form 48HG-2SI
Pg 1
3-01
Replaces: 48HG-1SI
Book 1 4
Tab 1a 6a
2
CURB
PKG. NO. REF.
HEIGHT
1′-2″
CRRFCURB010A00
(305)
2′-0″
CRRFCURB011A00
(610)
DESCRIPTION
Roof Curb
14″ High
Roof Curb
24″ High
ALL
UNIT
B
DEG.
IN.
.28
.42
Fig. 1 — Roof Curb Details
A
DEG.
IN.
.28
.57
MAXIMUM CURB LEVELING TOLERANCES
Direction of airflow.
4. Roof curb: 14 ga. (VA03-56) stl.
5. To prevent the hazard of stagnant water build-up in the unit do not
exceed curb leveling tolerances.
6. Clearance between unit base rail and curb flange is 1/4-in. (6 mm) on
each side.
3.
NOTES:
1. Roof curb accessory is shipped disassembled.
2. Dimensions in ( ) are in millimeters.
POSITIONING — Maintain clearance, per Fig. 4, around and
above unit to provide minimum distance from combustible materials, proper airflow, and service access.
Do not install unit in an indoor location. Do not locate 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
Combustion 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 distribution requirements. Unit operating weight is shown in Table 1.
INSTALLATION ONTO CURB — The 48HG units are designed to fit on either the accessory full perimeter curb or onto
existing 48/50TJ,HJ or 48/50DP,DR curbs. In either case, correct placement of the unit onto the curb is critical to operating
performance. To aid in correct positioning, 3/8-in. diameter locating holes have been added to the unit base rails. When placing the unit, these holes should line up with the roof curb edge
as shown in Fig. 5 and 6, to assure proper duct opening alignment. Select the alignment holes suited for the curb being used.
For installation on the HJ,TJ,DP,DR curb use the alignment
holes located approximately 20-in. from the end of the base rail
on the return end of the unit. For placement on the HG curb,
use the alignment holes located approximately 2-in. from the
end of the base rail on the return end of the unit. See labels on
the side of the unit for more details.
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. 1. Improperly applied gasket
can also result in air leaks and poor unit performance.
ALTERNATE UNIT SUPPORT — When a curb cannot be
used, install unit on a noncombustible surface. Support unit
with sleepers, using unit curb support area. If sleepers cannot
be used, support long sides of unit with a minimum of 3 equally spaced 4-in. x 4-in. pads on each side.
Step 2 — Remove Shipping Rails — Remove shipping rails prior to lowering unit onto roof curb. See Fig. 2. The
rails are attached to the unit at both the return end and condenser end. Remove the screws from both ends of each rail. Be
careful not to drop the rails onto any surface that could be damaged. Discard the rails. It is important to replace the screws into
the unit to avoid any air or water leakage.
Do not allow the shipping rail to drop on the roof surface.
Damage to the roof surface may result.
Step 3 — Rig and Place Unit — Inspect unit for transportation damage. File any claim with transportation agency.
Do not drop unit; keep upright. Use spreader bars over unit
to prevent sling or cable damage. Rollers may be used to move
unit across a roof. Level by using unit frame as a reference; leveling tolerance is ± 1/16 in. per linear ft in any direction. See
Fig. 3 for additional information. Unit operating weight is
shown in Table 1.
Four lifting holes are provided in the unit base rails as
shown in Fig. 3. Refer to rigging instructions on unit.
SHIPPING RAILS
Fig. 2 — Shipping Rail Removal
3
Fig. 3 — Rigging Details
4
Fig. 4 — Base Unit Dimensions
5
Table 1 — Physical Data
UNIT 48HG
VOLTAGE
NOMINAL CAPACITY (Tons)
OPERATING WT (lbs) (Low Heat)
COMPRESSOR
Quantity
Number of Refrigerant Circuits
Oil (oz) Ckt A...Ckt B...Ckt C
REFRIGERANT TYPE
Expansion Device
Operating Charge (lbs)
Circuit A
Circuit B
Circuit C
CONDENSER COIL
Rows...Fins/in.
Total Face Area (sq ft)
CONDENSER FAN
Nominal Cfm (Total, all fans)
Quantity...Diameter (in.)
Motor Hp...Rpm
Watts Input (Total)
EVAPORATOR COIL
Rows...Fins/in.
Total Face Area (sq ft)
EVAPORATOR FAN
Quantity...Size
Type Drive
Nominal Cfm
Std Motor Hp
Alt Motor Hp
Motor Nominal Rpm
Std Max. Continuous Bhp
Std Max. Continuous Watts
Alt Max. Continuous Bhp
Alt Max. Continuous Watts
Motor Frame Size
Motor Frame Size
Fan Drive Rpm Range
Motor Bearing Type
Maximum Allowable Rpm
Motor Pulley Pitch Diameter
Motor Shaft Diameter (in.)
Motor Shaft Diameter (in.)
Belt, Quantity...Type...Length (in.)
Pulley Center Line Distance (in.)
Speed Change per Full Turn of
Moveable Pulley Flange (Rpm)
Moveable Pulley Maximum Full
Turns from Closed Position
Factory Speed Setting (Rpm)
FURNACE SECTION
Rollout Switch Cutout Temp (F)
Burner Orifice Diameter (in. — drill size)
Gas
Thermostat Heat Anticipator Setting
Stage 1 (amps)
Stage 2 (amps)
Gas Input (Btuh) High Heat
Efficiency (Steady State) %
Temperature Rise Range
Gas Input (Btuh) Low Heat
Efficiency (Steady State) %
Temperature Rise Range
Manifold Pressure
Natural Gas (in. wg)
Natural Gas (in. wg)
Gas Valve Quantity
Gas Valve Pressure Range Min-Max Allowable
Field Gas Connection Size (in. FPT)
HIGH PRESSURE SWITCH (psig)
Cutout
Reset (Auto)
OUTDOOR AIR INLET SCREENS
Quantity...Size (in.)
RETURN AIR FILTERS
Quantity...Size (in.)
014
208/230, 460
121/2
2102
Std Motor/Std Drive
Std Motor/Alt Drive
Alt Motor/Std Drive
Alt Motor/Opt Drive
Stage 1
Stage 2
Vertical
Stage 1
Stage 2
Vertical
Vertical
Horizontal
(in. wg)
(psig)
020
ALL
18
2224
024
ALL
20
2272
028
ALL
25
2526
3
3
68...68...90
3
3
90...90...90
2
2
110...110...NA
575
15
2196
2
2
54...54...NA
3
3
68...68...68
TXV
TXV
TXV
3
3
68...68...68
R-22
TXV
TXV
TXV
TXV
19.6
18.3
NA
19.6
18.3
NA
13.2
12.2
15.4
13.2
12.2
15.4
13.1
12.7
15.2
13.8
13.9
15.5
21.8
20.3
NA
2...17
57.78
2...17
57.78
2...17
57.78
2...17
57.78
2...17
57.78
2...17
57.78
2...17
66.67
14,000
4...22
4...1100
1400
Std Motor/Std Drive
Std Motor/Alt Drive
Alt Motor/Std Drive
Alt Motor/Opt Drive
Standard
Alternate
Std Motor/Std Drive
Std Motor/Alt Drive
Alt Motor/Std Drive
Alt Motor/Opt Drive
016
208/230, 460
15
2196
2
2
54...54...NA
14,000
4...22
4...1100
1400
1400
14,000
4...22
4...1100
1400
3...15
23.33
3...15
23.33
3...15
23.33
3...15
23.33
3...15
23.33
4...15
23.33
4...15
27.22
2...15x11
Belt
5000
3.7
5
1725
4.25
3171
5.75
4290
56HZ
S184T
485- 613
618- 789
778-1021
1000-1227
Ball
1400
3.7-4.7
3.4-4.4
3.1-4.1
4.3-5.3
7/8
11/8
1...BX...51
1...A...45
1...BX...38
1...B...41
11.3-12.3
21
29
41
38
6
549
2...15x11
Belt
5000
3
5
1725
3.45
2574
5.75
4290
56H
184T
472- 619
609- 778
778-1021
1000-1227
Ball
1400
3.1-4.1
3.4-4.4
3.1-4.1
4.3-5.3
7/8
11/8
1...BX...48
1...A...45
1...BX...38
1...B...41
11.3-12.3
25
28
41
38
6
546
2...15x11
Belt
6000
3.7
5
1725
4.25
3171
5.75
4290
56HZ
S184T
618- 789
485- 613
778-1021
1000-1227
Ball
1400
3.4-4.4
3.7-4.7
3.1-4.1
4.3-5.3
7/8
11/8
1...A..45
1...BX...51
1...BX...38
1...B...41
11.3-12.3
29
21
41
38
6
704
2...15x11
Belt
6000
3
5
1725
3.45
2574
5.75
4290
56H
184T
609- 778
472- 619
778-1021
1000-1227
Ball
1400
3.4-4.4
3.1-4.1
3.1-4.1
4.3-5.3
7/8
11/8
1...A...45
1...BX...48
1...BX...38
1...B...41
11.3-12.3
28
25
41
38
6
694
2...15x11
Belt
7000
5
71/2
1725
5.75
4290
8.63
6438
S184T
S213T
658- 808
794- 974
949-1145
1126-1328
Ball
1400
4.3-5.3
4.3-5.3
5.4-6.6
5.5-6.5
11/8
13/8
1...BX...46
1...BX...42
1...BX...46
1...BX...42
10.0-12.2
25
30
33
34
6
733
2...15x11
Belt
8000
5
71/2
1725
5.75
4290
8.63
6438
S184T
S213T
658- 808
794- 974
949-1145
1126-1328
Ball
1400
4.3-5.3
4.3-5.3
5.4-6.6
5.5-6.5
11/8
13/8
1...BX...46
1...BX...42
1...BX...46
1...BX...42
10.0-12.2
25
30
33
34
6
733
2...15x11
Belt
10,000
7 1/2
10
1725
8.63
6438
11.50
8579
S213T
S215T
799- 965
717- 882
939-1152
1152-1366
Ball
1400
5.4-6.6
5.4-6.6
4.2-5.2
5.2-6.2
13/8
13/8
1...BX...51
1...BX...50
2...AX...42
2...AX...42
9.6-12.0
28
28
36
36
6
882
225
0.136 — #29
Natural
225
0.136 — #29
Natural
225
0.136 — #29
Natural
225
0.136 — #29
Natural
225
0.136 — #29
Natural
225
0.136 — #29
Natural
225
0.136 — #29
Natural
0.98
0.44
224,000
296,000
82
25-55
199,000
250,000
82
15-45
0.98
0.44
224,000
296,000
82
25-55
199,000
250,000
82
15-45
0.98
0.44
317,000
400,000
82
25-55
199,000
250,000
82
15-45
0.98
0.44
317,000
400,000
82
25-55
199,000
250,000
82
15-45
0.98
0.44
317,000
400,000
82
25-55
199,000
250,000
82
15-45
0.98
0.44
317,000
400,000
82
25-55
199,000
250,000
82
15-45
0.98
0.44
317,000
400,000
82
25-55
199,000
250,000
82
15-45
3.00
2.95
1
5.5-13.0
.235-.469
3/4
3.00
2.95
1
5.5-13.0
.235-.469
3/4
3.00
2.95
1
5.5-13.0
.235-.469
3/4
3.00
2.95
1
5.5-13.0
.235-.469
3/4
3.00
2.95
1
5.5-13.0
.235-.469
3/4
3.00
2.95
1
5.5-13.0
.235-.469
3/4
3.00
2.95
1
5.5-13.0
.235-.469
3/4
426
320
426
320
426
320
426
320
426
320
426
320
426
320
3...20x25
3...20x25
3...20x25
3...20x25
3...20x25
3...20x25
3...20x25
9...16x25
9...16x25
9...16x25
9...16x25
9...16x25
9...16x25
9...18x24
1/
Standard
Alternate
Std Motor/Std Drive
Std Motor/Alt Drive
Alt Motor/Std Drive
Alt Motor/Opt Drive
575
121/2
2102
1/
LEGEND
Al
— Aluminum
Bhp — Brake Horsepower
TXV — Thermostatic Expansion Valve
6
14,000
4...22
4...1100
1400
1/
14,000
4...22
1/ ...1100
4
1/
14,000
4...22
4...1100
1400
1/
21,000
6...22
4...1100
2100
1/
SIDE SHOT APPLICATIONS (HORIZONTAL) — Horizontal units are shipped with outer panels that allow for side by
side horizontal duct connections. If specified during ordering,
the unit will be shipped with the downshot duct openings
blocked off from the factory, ready for side supply installation.
If the side shot option was not specified at time of ordering the
unit, a field-installed accessory kit is required to convert the
downshot unit into a side supply configuration.
Installation of the duct block-off covers should be completed prior to placing the unit unless sufficient side clearance is
available. A minimum of 66-in. is required between the unit
and any obstruction to install the duct block-off covers. Side
supply duct dimensions and locations are shown on Fig. 4. Install ductwork to horizontal duct flange connections on side of
unit.
ALIGNMENT
HOLE
(IN BASE RAIL)
ALIGNMENT
HOLE SHOULD
LINE UP WITH
ROOF CURB
EDGE FLANGE
EDGE FLANGE
Fig. 5 — Alignment Hole Details
ALIGNMENT
HOLES FOR
HJ, TJ, DP, DR
CURB-BOTH
SIDES
RETURN
OPENING
ALIGNMENT
HOLES FOR HG
CURB-BOTH
SIDES
CURB
RETURN
OPENING
ECONOMIZER
SUPPLY
OPENING
CURB
SUPPLY
OPENING
SEE
NOTE
ROOF CURB
SEE
NOTE
HEAT
EXCHANGER
Fig. 6 — Alignment Hole Location
AIR
IN
Step 4 — Field Fabricate Ductwork — Secure all
AIR
OUT
NOTE: Do not drill in this area; damage to basepan may result in
water leak.
ducts to building structure. Use flexible duct connectors between unit and ducts as required. Insulate and weatherproof all
external ductwork, joints, and roof openings with counter
flashing and mastic in accordance with applicable codes.
Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier.
Fig. 7 — Air Distribution — Thru-the-Bottom
ECONOMIZER
Step 5 — Make Unit Duct Connections
DOWNSHOT CONFIGURATION — Unit is shipped for
thru-the-bottom duct connections. Ductwork openings are
shown in Fig. 1 and 4. Duct connections for downshot configuration are shown in Fig. 7. Field fabricated concentric ductwork may be connected as shown in Fig. 8 and 9. The unit is
designed to attach the ductwork to the roof curb. Do not attach
duct directly to the unit basepans.
Unit basepans must be supported under the unit and around
duct openings in order to prevent air leakage.
SEE
NOTE
SEE
NOTE
For vertical supply and return units, tools or parts could
drop into ductwork and cause an injury. Install a 90 degree
turn in the return ductwork between the unit and the conditioned space. If a 90 degree elbow cannot be installed, then
a grille of sufficient strength and density should be installed
to prevent objects from falling into the conditioned space.
AIR OUT
AIR IN
HEAT
EXCHANGER
AIR OUT
NOTE: Do not drill in this area; damage to basepan may result in
water leak.
Fig. 8 — Air Distribution — Concentric Duct
7
NOTE: Dimensions A, A′, B, and B′ are obtained from field-supplied
ceiling diffuser.
Shaded areas indicate block-off pans.
Fig. 9 — Concentric Duct Details
Step 6 — Install Flue Hood and Inlet Hood —
Flue hood (smaller hood), inlet hood (larger hood), and screens
are shipped inside the unit in the return air section. To install,
remove the heat panel. The flue hood is attached to the heat
section panel from the outside using the screws provided. See
Fig. 10.
The inlet hood is installed by inserting the hood through the
back of the heat panel. Attach the hood by inserting the screws
provided through the clearance holes in the heat panel and into
the intake hood.
Install the screens into both hoods using the screws and retaining nuts provided with the unit.
Attach the cover of the observation hole on the intake hood
and then replace the heat panel onto the unit to complete the installation.
NOTE: When properly installed, the flue hood will line up
with the combustion fan housing. See Fig. 11.
FLUE HOOD
INLET HOOD
Fig. 10 — Flue and Inlet Hood Locations
Step 7 — Trap Condensate Drain — See Fig. 12
for drain location. One 3/4-in. half coupling is provided outside
unit evaporator section for condensate drain connection. A trap
at least 4-in. deep must be used. See Fig. 13.
Step 8 — Install Gas Piping — Unit is equipped for
use with natural gas. Installation must conform with local
building codes or, in the absence of local codes, with the
National Fuel Gas Code, ANSI Z223.1.
Install field-supplied manual gas shutoff valve with a 1/8-in.
NPT pressure tap for test gage connection at unit. Field gas piping must include sediment trap and union. See Fig. 14.
COMBUSTION
FAN HOUSING
HEAT
EXCHANGER
SECTION
Do not pressure test gas supply while connected to unit.
Always disconnect union before servicing.
IMPORTANT: Natural gas pressure at unit gas connection must not be less than 5.5 in. wg or greater than
13.5 in. wg.
INDUCEDDRAFT
MOTOR
MAIN BURNER
SECTION
Size gas-supply piping for 0.5-in. wg maximum pressure
drop. Do not use supply pipe smaller than unit gas connection.
Fig. 11 — Combustion Fan Housing Location
8
The unit must be electrically grounded in accordance with
local codes and NEC ANSI/NFPA 70 (National Fire Protection Association).
Field wiring must conform to temperature limitations for
type ‘‘T’’ wire. All field wiring must comply with NEC and local requirements.
Operating voltage to compressor must be within voltage
range indicated on unit nameplate. On 3-phase units, voltages
between phases must be balanced within 2%.
Unit failure as a result of operation on improper line voltage
or excessive phase imbalance constitutes abuse and may cause
damage to electrical components.
FIELD CONTROL WIRING — Unit can be controlled with
either a Carrier-approved accessory thermostat or a Carrierapproved space temperature sensor. Install thermostat according to the installation instructions included with accessory.
Locate thermostat assembly or space temperature sensor on a
solid interior wall in the conditioned space to sense average
temperature.
Route thermostat or space temperature sensor cable or
equivalent single leads of colored wire from subbase terminals
through conduit into unit to low-voltage connections as shown
on unit label wiring diagram and in Fig. 16 or 17.
NOTE: For wire runs up to 50 ft, use no. 18 AWG (American
Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft,
use no. 16 AWG insulated wire (35 C minimum). For over
75 ft, use no. 14 AWG insulated wire (35 C Minimum).
All wire larger than no. 18 AWG cannot be directly connected at the thermostat and will require a junction box and
splice at the thermostat.
Set heat anticipator settings as follows:
Fig. 12 — Condensate Drain Details
Fig. 13 — Condensate Drain Piping Details
VOLTAGE
All
STAGE 1
(W1) ON
0.15
STAGE 1 AND 2
(W1 AND W2) ON
0.30
Settings may be changed slightly to provide a greater degree
of comfort for a particular installation.
Fig. 14 — Field Gas Piping
Step 9 — Make Electrical Connections
FIELD POWER SUPPLY — Unit is factory wired for voltage shown on unit nameplate.
When installing units, provide a disconnect per NEC
(National Electrical Code) requirements of adequate size
(Tables 2A and 2B).
All field wiring must comply with NEC and local
requirements.
Route power and ground lines through control box end panel or unit basepan (see Fig. 4) to connections as shown on unit
wiring diagram and Fig. 15.
EQUIP
GND
NEC
TB
The correct power phasing is critical to the operation of the
scroll compressors. An incorrect phasing will result in an
alarm being generated and compressor operation lockout.
Should this occur, power phase correction must be made to
the incoming power.
LEGEND
— Equipment
— Ground
— National Electrical Code
— Terminal Board
NOTE: The maximum wire size for TB1 is 2/0.
Fig. 15 — Field Power Wiring Connections
9
10. Install the bottom part of the hood top using 4 screws provided. See Fig. 19.
11. Remove the packaging from filters (3) and install into the
filter tracks. Slide the filters to the sides then place the last
filter into the center of the filter track.
NOTE: For units with manual dampers, replace the end filters
with the manual dampers. Install the filter in the center
between the manual dampers.
12. Install the filter retainer track along the bottom edge of
the outdoor air hood using 4 screws provided. See
Fig. 19.
13. Install top section of the outdoor air hood using 6 screws
provided. See Fig. 19. See Fig. 20 for a picture of the assembled outdoor air hood.
NOTE: For filter removal, remove the four screws holding the
filter retainer. The filters can then be removed, cleaned, or
replaced. Install the filters by reversing the procedure.
MANUAL DAMPER ASSEMBLY — For units equipped
with manual dampers, the assembly process is similar to the
outdoor air hood for units with economizers. There are two
slide dampers shipped with the unit to allow for manual setting
of the outside air volume. When assembling the hood, place
one of the manual slide dampers in each of the end positions
and the remaining filter in the center position. The manual
dampers can then be moved to the appropriate position and
then locked into place using the screws mounted in the adjustment slots. See Fig. 21.
THERMOSTAT ASSEMBLY
REMOVABLE JUMPER
TB4
L
Y1
Y2
W1
W2
G
C
R
Y1
Y2
W1
W2
G
C
X
1
2
3
4
5
6
7
8
RH
RC
X
Fig. 16 — Field Control Thermostat Wiring
T-55 SPT
TB3
T-56 SPT
T1
T2
7
8
TH
COM
SN
9
SPT — Space Temperature Sensor
Fig. 17 — Field Control Space
Temperature Sensor Wiring
Step 11 — Make Outdoor-Air Inlet Adjustments — A configuration within the unit software specifies
Step 10 — Install Outdoor Air Hood — Perform
the following procedure to install the outdoor-air hood:
1. Remove blank panel from return end of unit (hood section). Save the screws. See Fig. 18 for shipping location
of components.
2. Hood sides are fastened to sides of outdoor air opening.
Remove the hood sides and save the screws (3 each side).
3. Remove the bracket holding the bottom half of the hood
in the shipping position. Remove the hood bottom half
and filters (or manual dampers on units so equipped)
from outdoor section.
4. Remove inner filter track from shipping position in outdoor section. Position inner filter track so the track is facing outward from the unit. Install the filter track with 4
screws provided.
5. Apply seal strip (provided) to back flange of both hood
sides where hood side connects to the unit back panel.
See Fig. 19.
6. Apply seal strip (provided) to top flange of both hood
sides where hood sides connect to the hood top panels.
See Fig. 19.
7. Install hood sides to the back panels using the screws
from Step 2. The sloped flanges point outward. The drip
edges of the side panels should face outward as well. See
Fig. 19.
8. Install the filter guides to the hood sides. The flanges
should face inward to hold the filters in place. See
Fig. 19.
9. Apply seal strip along the entire length of the bottom
flange of the hood top. See Fig. 19.
the minimum economizer position when the indoor fan is operating. The following steps specify how to adjust the position of
the economizer damper using the ComfortLink™ scrolling
marquee display in order to determine the minimum economizer position that satisfies the consumer's requirement for percentage of outdoor air. Refer to the ComfortLink Display Usage section on page 40 for more information.
1. Enter the Service Test main menu on the display.
2. Enter the TEST submenu and turn ON test mode. If the
submenu password has not already been entered, the
password must be entered in order to turn ON Service
Test. The default password is 1111.
3. Return to the main level of Service Test.
4. Enter the outputs (OUTS) submenu and turn on the IDF.
5. Return to the OUTS submenu and enter an initial value
for the minimum economizer position (ECON). This will
drive the economizer damper to the specified position.
Continue to adjust the ECON value until the airflow requirements are met. Record the economizer position that
satisfies the airflow requirements.
6. Return to the TEST submenu and turn OFF test mode.
This will cause the economizer to close and the indoor
fan to turn off.
7. Return to the main menu level and enter the Configuration menu.
8. Enter the economizer (ECON) submenu.
9. The MIN.P configuration represents the minimum economizer position. Enter the value determined during Step 5.
10
Table 2A — Electrical Data (Units Without Optional Convenience Outlet)
UNIT
SIZE
48HG
NOMINAL
VOLTAGE
(3 Ph, 60 Hz)
208/230
014
460
575
208/230
016
460
575
208/230
020
460
575
208/230
024
460
575
208/230
028
460
575
VOLTAGE
RANGE
Min
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
COMPRESSOR
No. 1
Max RLA
253
506
633
253
506
633
253
506
633
253
506
633
253
506
633
19.2
9.5
7.6
16.0
8.0
7.0
16.0
8.0
7.0
21.5
10.7
8.6
47.1
19.6
15.8
LRA
146.0
73.0
58.4
125.0
60.0
55.0
125.0
60.0
55.0
166.0
83.0
66.0
245.0
125.0
100.0
No. 2
RLA
19.2
9.5
7.6
16.0
8.0
7.0
16.0
8.0
7.0
21.5
10.7
8.6
47.1
19.6
15.8
LRA
146.0
73.0
58.4
125.0
60.0
55.0
125.0
60.0
55.0
166.0
83.0
66.0
245.0
125.0
100.0
OFM
No. 3
RLA
—
—
—
16.0
8.0
7.0
21.5
10.7
8.6
21.5
10.7
8.6
—
—
—
LRA
—
—
—
125.0
60.0
55.0
166.0
83.0
66.0
166.0
83.0
66.0
—
—
—
Qty Hp
4
4
4
4
4
4
4
4
4
4
4
4
6
6
6
1/
4
1/4
1/
1/
4
4
1/4
1/
1/
4
4
1/4
1/
1/
4
4
1/4
1/4
1/
4
1/4
1/4
POWER
EXHAUST
IFM
FLA
(ea)
Hp
FLA
3.7
10.6/ 9.6
5.0
16.7/15.2
3.7
4.8
5.0
7.6
3.0
3.9
5.0
6.1
3.7
10.6/ 9.6
5.0
16.7/15.2
3.7
4.8
5.0
7.6
3.0
3.9
5.0
6.1
5.0
16.7/15.2
7.5
24.2/22
5.0
7.6
7.5
11.0
5.0
6.1
7.5
9.0
5.0
16.7/15.2
7.5
24.2/22.0
5.0
7.6
7.5
11.0
5.0
6.1
7.5
9.0
7.5
24.2/22.0
10.0
30.8/28.0
7.5
11.0
10.0
14.0
7.5
9.0
10.0
11.0
1.5
0.7
0.7
1.5
0.7
0.7
1.5
0.7
0.7
1.5
0.7
0.7
1.5
0.7
0.7
11
Qty Hp
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
2
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
—
1.0
FLA
(ea)
—
5.9
—
5.9
—
3.1
—
3.1
—
3.1
—
3.1
—
5.9
—
5.9
—
3.1
—
3.1
—
3.1
—
3.1
—
5.9
—
5.9
—
3.1
—
3.1
—
3.1
—
3.1
—
5.9
—
5.9
—
3.1
—
3.1
—
3.1
—
3.1
—
5.9
—
5.9
—
3.1
—
3.1
—
3.1
—
3.1
COMBUSTION
FAN
MOTOR
FLA
.45/.52
0.3
0.3
.45/.52
0.3
0.3
.45/.52
0.3
0.3
.45/.52
0.3
0.3
.45/.52
0.3
0.3
POWER
SUPPLY
DISCONNECT
SIZE
MCA
MOCP*
FLA
60/ 59
72/ 71
66/ 65
78/ 77
29
35
32
38
24
30
26
33
69/ 68
81/ 80
75/ 74
87/ 86
34
40
37
43
30
36
32
38
82/ 81
94/ 92
90/ 88
102/ 99
40
46
44
50
34
40
37
43
93/ 92
105/103
101/ 99
113/110
45
52
49
55
37
43
40
46
140/137
151/149
146/143
158/155
60
66
63
69
49
55
51
57
70/ 70
90/ 90
80/ 80
90/ 90
35
40
40
45
30
35
30
40
80/ 80
90/ 90
90/ 80
100/100
40
45
40
50
35
40
35
45
100/100
110/110
110/100
125/110
50
50
50
60
40
45
45
50
110/110
125/110
125/110
125/125
50
60
50
60
45
50
45
50
175/175
175/175
175/175
200/200
70
80
80
80
60
70
60
70
70/ 70
80/ 80
80/ 70
90/ 90
35
40
35
45
30
35
30
40
80/ 80
90/ 90
90/ 90
100/100
40
45
40
50
35
40
35
45
90/ 90
110/110
100/100
125/110
45
60
50
60
40
45
40
50
110/100
125/125
110/110
125/125
50
60
60
70
45
50
45
60
150/150
175/175
175/175
175/175
70
80
70
80
60
60
60
70
Table 2B — Electrical Data (Units Without Optional Convenience Outlet)
UNIT
SIZE
48HG
NOMINAL
VOLTAGE
(3 Ph, 60 Hz)
208/230
014
460
575
208/230
016
460
575
208/230
020
460
575
208/230
024
460
575
208/230
028
460
575
VOLTAGE
RANGE
Min
187
414
518
187
414
518
187
414
518
187
414
518
187
414
518
Max
253
506
633
253
506
633
253
506
633
253
506
633
253
506
633
No. 1
RLA
19.2
9.5
7.6
16.0
8.0
7.0
16.0
8.0
7.0
21.5
10.7
8.6
47.1
19.6
15.8
LRA
146.0
73.0
58.4
125.0
60.0
55.0
125.0
60.0
55.0
166.0
83.0
66.0
245.0
125.0
100.0
COMPRESSOR
No. 2
RLA
19.2
9.5
7.6
16.0
8.0
7.0
16.0
8.0
7.0
21.5
10.7
8.6
47.1
19.6
15.8
LRA
146.0
73.0
58.4
125.0
60.0
55.0
125.0
60.0
55.0
166.0
83.0
66.0
245.0
125.0
100.0
OFM
No. 3
RLA
—
—
—
16.0
8.0
7.0
21.5
10.7
8.6
21.5
10.7
8.6
—
—
—
LRA
—
—
—
125.0
60.0
55.0
166.0
83.0
66.0
166.0
83.0
66.0
—
—
—
Qty Hp
4
4
4
4
4
4
4
4
4
4
4
4
6
6
6
1/
1/
4
4
1/4
1/
1/
4
4
1/4
1/
1/
4
4
1/4
1/
1/
4
4
1/4
1/4
1/
4
1/4
IFM
FLA
(ea)
Hp
FLA
3.7
10.6/ 9.6
5.0
16.7/15.2
3.7
4.8
5.0
7.6
3.0
3.9
5.0
6.1
3.7
10.6/ 9.6
5.0
16.7/15.2
3.7
4.8
5.0
7.6
3.0
3.9
5.0
6.1
5.0
16.7/15.2
7.5
24.2/22.0
5.0
7.6
7.5
11.0
5.0
6.1
7.5
9.0
5.0
16.7/15.2
7.5
24.2/22.0
5.0
7.6
7.5
11.0
5.0
6.1
7.5
9.0
7.5
24.2/22.0
10.0
30.8/28.0
7.5
11.0
10.0
14.0
7.5
9.0
10.0
11.0
1.5
0.7
0.7
1.5
0.7
0.7
1.5
0.7
0.7
1.5
0.7
0.7
1.5
0.7
0.7
12
POWER
EXHAUST
Qty Hp FLA
(ea)
— —
—
2 1.0 5.9
— —
—
2 1.0 5.9
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 5.9
— —
—
2 1.0 5.9
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 5.9
— —
—
2 1.0 5.9
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 5.9
— —
—
2 1.0 5.9
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 5.9
— —
—
2 1.0 5.9
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
— —
—
2 1.0 3.1
COMBUSTION
FAN MOTOR
FLA
.45/.52
0.3
0.3
.45/.52
0.3
0.3
.45/.52
0.3
0.3
.45/.52
0.3
0.3
.45/.52
0.3
0.3
POWER
SUPPLY
DISCONNECT
SIZE
MCA
MOCP*
FLA
65/ 64
77/ 76
71/ 70
83/ 82
32
38
35
41
27
34
29
36
74/ 73
86/ 85
80/ 79
92/ 91
37
43
40
46
33
40
35
42
87/ 86
99/ 97
95/ 93
107/104
43
49
47
53
37
43
40
46
98/ 97
110/108
106/104
118/115
48
55
52
58
40
47
43
49
145/142
156/154
151/148
163/160
63
69
66
72
52
58
54
60
80/ 80
90/ 90
90/ 80
100/100
40
45
40
50
30
40
35
45
90/ 80
100/100
90/ 90
100/100
40
50
45
50
35
45
40
50
100/100
110/110
110/110
125/125
50
50
50
60
45
50
45
50
110/110
125/125
125/125
125/125
50
60
60
60
45
50
50
50
175/175
200/200
175/175
200/200
80
80
80
90
60
70
60
70
70/ 70
90/ 90
80/ 80
100/ 90
35
45
40
45
30
40
35
40
90/ 80
100/100
90/ 90
110/100
45
50
45
60
40
45
40
50
100/100
110/110
110/110
125/125
50
60
60
60
45
50
45
60
110/110
125/125
125/125
150/150
60
60
60
70
45
60
50
60
175/175
175/175
175/175
175/175
70
80
70
80
60
70
60
70
LEGEND AND NOTES FOR TABLES 2A AND 2B
FLA
HACR
IFM
LRA
MCA
MOCP
NEC
OFM
RLA
—
—
—
—
—
—
—
—
—
LEGEND
Full Load Amps
Heating, Air Conditioning and Refrigeration
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps
Maximum Overcurrent Protection
National Electrical Code
Outdoor (Condenser) Fan Motor
Rated Load Amps
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
3
1371
=
3
= 457
Determine maximum deviation from average voltage.
(AB) 457 - 452 = 5 v
(BC) 464 - 457 = 7 v
(AC) 457 - 455 = 2 v
Maximum deviation is 7 v.
Determine percent voltage imbalance.
7
% Voltage Imbalance = 100 x
457
= 1.53%
This amount of phase imbalance is satisfactory as it is below the
maximum allowable 2%.
Average Voltage=
*Fuse or HACR circuit breaker.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440),
the overcurrent protective device for the unit shall be fuse or
HACR breaker. Canadian units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine
the percent voltage imbalance.
IMPORTANT: If the supply voltage phase imbalance is
more than 2%, contact your local electric utility company
immediately.
3. The convenience outlet full load amps (FLA) are 5, 3, and 3 for
208/230, 460, 575-V units, respectively.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
EXAMPLE: Supply voltage is 460-3-60.
HOOD TOP
(TOP HALF)
HOOD
SIDE
HOOD TOP
(BOTTOM HALF)
HOOD
SIDE
RETURN AIR
SECTION
Fig. 18 — Outdoor-Air Hood Component
Shipping Location
13
TOP HOOD
SECTION
ADD
SEAL
HOOD STRIP
SIDE
SEAL
STRIP
LOCATION
ADD
SEAL
STRIP
INNER
FILTER
TRACK
BOTTOM
HOOD
SECTION
ADD
SEAL
STRIP
ADD
SEAL
STRIP
FILTER
GUIDE
FILTER
RETAINER
FILTER
GUIDE
FILTER
HOOD
SIDE
MANUAL
DAMPER
(IF EQUIPPED)
UNIT
BACK
PANEL
NOTE: Units with manual damper only use one filter.
Fig. 19 — Outdoor-Air Hood Details
LOCKING SCREW
MOVEABLE DAMPER
AIR FILTER POSITION
Fig. 20 — Outdoor-Air Hood Assembled
MOVEABLE DAMPER
Fig. 21 — Manual Damper Details
14
Step 12 — Position Optional Power Exhaust or
Barometric Relief Damper Hood — The optional
instructions included with each accessory. Consult the Carrier
Price Pages for accessory package numbers for particular
applications. The available field-installed accessories for the
Centurion units are:
• economizer
• power exhaust
• barometric relief damper
• 14-in. roof curb
• 24-in. roof curb
• enthalpy control
• differential enthalpy control
• plugged filter indicator
• LP (liquified propane) conversion kit
• carbon dioxide detector
• smoke detector
• filter status switch
• fan status switch
• 65% pleated filters
• condenser hail guard
• horizontal duct accessory
• thermostats
• humidistats
• two-position damper
power exhaust or barometric relief dampers are shipped
assembled and tilted back into the unit for shipping. Brackets
and extra screws are shipped in shrink wrap around the
dampers.
1. Remove 9 screws holding each damper assembly in
place. See Fig. 22. Each damper assembly is secured with
3 screws on each side and 3 screws along the bottom.
Save screws.
Be careful when tilting blower assembly. Hoods and blowers are heavy and can cause injury if dropped.
2. Pivot each damper assembly outward until edges of
damper assembly rest against inside wall of unit.
3. Secure each damper assembly to unit with 6 screws
across top (3 screws provided) and bottom (3 screws
from Step 1) of damper.
4. With screws saved from Step 1, install brackets on each
side of damper assembly.
5. Remove tape from damper blades.
Step 13 — Install All Accessories — After all of
the factory-installed options have been adjusted, install all
field-installed accessories. Refer to the accessory installation
NOTES:
1. Unless otherwise specified, all dimensions are to outside of part.
2. Dimensions are in inches.
Fig. 22 — Power Exhaust or Barometric Relief Damper Mounting Details
15
START-UP
Use the following information and Start-Up Checklist on
page CL-1 to check out unit PRIOR to start-up.
5. Turn on power to the unit.
6. Repeat the procedure to energize each compressor and
check the evaporator fan rotation.
Unit Preparation — Check that unit has been installed in
Internal Wiring — Check all electrical connections in
accordance with these installation instructions and all applicable codes.
Evaporator Fan — Fan belt and variable pulleys are
unit control boxes; tighten as required.
factory-installed. Remove tape from the fan pulley. See
Tables 3-23 for Fan Performance Data. Be sure that fans rotate
in the proper direction. See Table 24 for air quantity limits. See
Table 25 and 26 for Evaporator Fan Motor Specifications. See
Table 27 for fan rpm at various motor pulley settings. To alter
fan performance, see Evaporator Fan Performance Adjustment
section on page 42.
Compressor Mounting — Compressors are internally
spring mounted. Do not loosen or remove compressor holddown bolts.
Refrigerant Service Ports — Each refrigerant system has a total of 3 Schrader-type service gage ports per circuit.
One port is located on the suction line, one on the compressor
discharge line, and one on the liquid line. Be sure that caps on
the ports are tight.
Condenser-Fans and Motors — Condenser fans and
motors are factory set. Refer to Condenser-Fan Adjustment
section (page 42) as required.
Crankcase Heater(s) — Crankcase heaters are energized as long as there is power to the unit and the compressor is
not operating.
Return-Air Filters — Check that correct filters are installed in filter tracks (see Table 1). Do not operate unit without
return-air filters.
IMPORTANT: Unit power must be on for 24 hours prior
to start-up. Otherwise, damage to compressor may
result.
Outdoor-Air Inlet Screens — Outdoor-air inlet screens
must be in place before operating unit.
Compressor Rotation
Gas Heat — Verify gas pressures before turning on heat as
follows:
1. Turn off manual gas stop.
2. Connect pressure gage to supply gas pressure tap (see
Fig. 14).
3. Connect pressure gage to manifold pressure tap on gas
valve.
4. Turn on manual gas stop and set thermostat to HEAT
position. After the unit has run for several minutes, verify
that incoming pressure is 5.5 in. wg to 13.0 in. wg, and
that the manifold pressure is 2.95 in. wg. on horizontal
discharge applications and 3.00 in. wg on vertical discharge applications. If manifold pressure must be adjusted, refer to Gas Valve Adjustment section on page 43.
5. After unit has been in operation for 5 minutes, check temperature rise across the heat exchangers. See unit informative plate for correct rise limits of the heat supplied.
Air quantities may need to be adjusted to bring the actual
rise to within the allowable limits.
Improper wiring will cause compressor stoppage and
alarm. Correct wiring by switching leads at contactor.
It is important to be certain the compressors are rotating in
the proper direction. To determine whether or not compressors
are rotating in the proper direction perform the following
procedure:
1. Use the Service Test feature to energize a compressor (see
Controls and Troubleshooting literature for details).
2. If the compressor is rotating in the wrong direction, the
control will stop the compressor and an alarm will be
displayed.
NOTE: The evaporator fan is probably also rotating in the
wrong direction.
3. Turn off power to the unit and lock out the power.
4. Reverse any two of the incoming power leads.
16
Table 3 — Fan Performance — 48HGD014 (Low Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
460
499
538
579
621
664
707
751
795
839
884
0.2
Watts
591
774
990
1243
1536
1871
2250
2676
3150
3676
4253
Rpm
814
834
857
884
913
945
978
1012
1047
1084
1121
1.2
Watts
1476
1740
2039
2376
2753
3172
3636
4145
4703
5311
5972
Bhp
0.68
0.89
1.14
1.43
1.77
2.15
2.59
3.08
3.62
4.23
4.89
Bhp
1.70
2.00
2.35
2.73
3.17
3.65
4.18
4.77
5.41
6.11
6.87
Rpm
548
581
617
654
693
732
772
813
855
897
940
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
774
0.89
623
951
1.09
692
1126
976
1.12
653
1170
1.35
717
1361
1212
1.39
685
1423
1.64
746
1630
1485
1.71
719
1715
1.97
778
1938
1798
2.07
755
2045
2.35
811
2285
2152
2.48
792
2417
2.78
846
2673
2550
2.93
830
2834
3.26
883
3106
2994
3.44
869
3295
3.79
920
3585
3487
4.01
909
3805
4.38
958
4112
4029
4.63
949
4366
5.02
997
4689
4625
5.32
990
4978
5.73
1037
5318
Bhp
1.29
1.56
1.88
2.23
2.63
3.07
3.57
4.12
4.73
5.39
6.12
Rpm
755
777
803
832
864
897
932
967
1004
1042
1080
1.0
Watts
1301
1551
1835
2158
2520
2925
3373
3868
4411
5004
5649
Bhp
1.50
1.78
2.11
2.48
2.90
3.36
3.88
4.45
5.07
5.75
6.50
Rpm
871
888
909
933
960
990
1022
1055
1089
1124
1160
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1650
1.90
924
1825
2.10
975
1999
1930
2.22
939
2119
2.44
988
2308
2243
2.58
958
2446
2.81
1005
2650
2594
2.98
980
2811
3.23
1026
3028
2984
3.43
1006
3215
3.70
1049
3445
3417
3.93
1034
3662
4.21
1076
3905
3895
4.48
1064
4153
4.78
1104
4409
4419
5.08
1095
4691
5.39
1135
4960
4992
5.74
1128
5277
6.07
1167
5561
5615
6.46
1163
5915
6.80
1200
6211
6290
7.23
1198
6604
7.60
1234
6914
Bhp
2.30
2.65
3.05
3.48
3.96
4.49
5.07
5.70
6.40
7.14
7.95
Rpm
1023
1035
1051
1070
1092
1117
1144
1173
1204
1236
1269
2.0
Watts
2173
2497
2853
3244
3674
4147
4665
5229
5842
6506
7223
Bhp
2.50
2.87
3.28
3.73
4.23
4.77
5.37
6.01
6.72
7.48
8.31
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units).
For standard motor with alternate drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units).
For alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range is
1000 to 1227 rpm. All other rpms require a field-supplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for
208/230 and 460-v units) or 3.45 (for 575-v units). Maximum
continuous Bhp for the alternate motor is 5.75. The maximum
continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
17
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 4 — Fan Performance — 48HGF014 (High Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
470
511
553
597
641
686
732
779
826
873
921
0.2
Watts
611
802
1029
1297
1606
1961
2363
2815
3320
3879
4495
Rpm
818
840
865
893
925
958
993
1029
1067
1106
1145
1.2
Watts
1488
1760
2068
2417
2808
3243
3725
4256
4838
5474
6165
Bhp
0.70
0.92
1.18
1.49
1.85
2.26
2.72
3.24
3.82
4.46
5.17
Bhp
1.71
2.02
2.38
2.78
3.23
3.73
4.28
4.90
5.56
6.30
7.09
Rpm
556
591
629
669
709
751
794
837
882
926
972
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
791
0.91
630
967
1.11
697
1141
1001
1.15
661
1194
1.37
725
1383
1248
1.44
695
1458
1.68
756
1663
1534
1.76
732
1761
2.03
789
1982
1862
2.14
770
2106
2.42
825
2343
2234
2.57
809
2495
2.87
862
2749
2653
3.05
849
2931
3.37
900
3201
3122
3.59
891
3416
3.93
940
3702
3642
4.19
933
3953
4.55
980
4254
4217
4.85
975
4542
5.22
1021
4860
4847
5.57
1019
5189
5.97
1063
5521
Bhp
1.31
1.59
1.91
2.28
2.70
3.16
3.68
4.26
4.89
5.59
6.35
Rpm
760
784
812
843
876
911
948
986
1025
1065
1105
1.0
Watts
1314
1572
1866
2201
2577
2997
3465
3981
4549
5169
5846
Bhp
1.51
1.81
2.15
2.53
2.96
3.45
3.99
4.58
5.23
5.95
6.72
Rpm
874
893
915
942
971
1003
1036
1071
1107
1145
1183
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1661
1.91
927
1835
2.11
978
2008
1948
2.24
943
2136
2.46
992
2324
2270
2.61
964
2472
2.84
1011
2673
2632
3.03
988
2848
3.28
1033
3063
3037
3.49
1016
3266
3.76
1059
3494
3486
4.01
1045
3728
4.29
1087
3970
3982
4.58
1077
4238
4.87
1117
4492
4528
5.21
1111
4797
5.52
1150
5064
5124
5.89
1146
5407
6.22
1184
5688
5774
6.64
1182
6071
6.98
1219
6365
6479
7.45
1220
6790
7.81
1255
7098
Bhp
2.31
2.67
3.07
3.52
4.02
4.57
5.17
5.82
6.54
7.32
8.16
Rpm
1026
1039
1056
1076
1100
1127
1156
1187
1220
1254
1290
2.0
Watts
2182
2512
2876
3278
3721
4210
4745
5330
5967
6657
7403
Bhp
2.51
2.89
3.31
3.77
4.28
4.84
5.46
6.13
6.86
7.66
8.51
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units).
For standard motor with alternate drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units).
For alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range is
1000 to 1227 rpm. All other rpms require a field-supplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for
208/230 and 460-v units) or 3.45 (for 575-v units). Maximum
continuous Bhp for the alternate motor is 5.75. The maximum
continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
18
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 5 — Fan Performance — 48HGD016 (Low Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
460
499
538
579
621
664
707
751
795
839
884
0.2
Watts
591
774
990
1243
1536
1871
2250
2676
3150
3676
4253
Rpm
814
834
857
884
913
945
978
1012
1047
1084
1121
1.2
Watts
1476
1740
2039
2376
2753
3172
3636
4145
4703
5311
5972
Bhp
0.68
0.89
1.14
1.43
1.77
2.15
2.59
3.08
3.62
4.23
4.89
Bhp
1.70
2.00
2.35
2.73
3.17
3.65
4.18
4.77
5.41
6.11
6.87
Rpm
548
581
617
654
693
732
772
813
855
897
940
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
774
0.89
623
951
1.09
692
1126
976
1.12
653
1170
1.35
717
1361
1212
1.39
685
1423
1.64
746
1630
1485
1.71
719
1715
1.97
778
1938
1798
2.07
755
2045
2.35
811
2285
2152
2.48
792
2417
2.78
846
2673
2550
2.93
830
2834
3.26
883
3106
2994
3.44
869
3295
3.79
920
3585
3487
4.01
909
3805
4.38
958
4112
4029
4.63
949
4366
5.02
997
4689
4625
5.32
990
4978
5.73
1037
5318
Bhp
1.29
1.56
1.88
2.23
2.63
3.07
3.57
4.12
4.73
5.39
6.12
Rpm
755
777
803
832
864
897
932
967
1004
1042
1080
1.0
Watts
1301
1551
1835
2158
2520
2925
3373
3868
4411
5004
5649
Bhp
1.50
1.78
2.11
2.48
2.90
3.36
3.88
4.45
5.07
5.75
6.50
Rpm
871
888
909
933
960
990
1022
1055
1089
1124
1160
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1650
1.90
924
1825
2.10
975
1999
1930
2.22
939
2119
2.44
988
2308
2243
2.58
958
2446
2.81
1005
2650
2594
2.98
980
2811
3.23
1026
3028
2984
3.43
1006
3215
3.70
1049
3445
3417
3.93
1034
3662
4.21
1076
3905
3895
4.48
1064
4153
4.78
1104
4409
4419
5.08
1095
4691
5.39
1135
4960
4992
5.74
1128
5277
6.07
1167
5561
5615
6.46
1163
5915
6.80
1200
6211
6290
7.23
1198
6604
7.60
1234
6914
Bhp
2.30
2.65
3.05
3.48
3.96
4.49
5.07
5.70
6.40
7.14
7.95
Rpm
1023
1035
1051
1070
1092
1117
1144
1173
1204
1236
1269
2.0
Watts
2173
2497
2853
3244
3674
4147
4665
5229
5842
6506
7223
Bhp
2.50
2.87
3.28
3.73
4.23
4.77
5.37
6.01
6.72
7.48
8.31
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units).
For standard motor with alternate drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units).
For alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range is
1000 to 1227 rpm. All other rpms require a field-supplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for 208/
230 and 460-v units) or 3.45 (for 575-v units). Maximum continuous Bhp for the alternate motor is 5.75. The maximum continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
19
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 6 — Fan Performance — 48HGF016 (High Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
470
511
553
597
641
686
732
779
826
873
921
0.2
Watts
611
802
1029
1297
1606
1961
2363
2815
3320
3879
4495
Rpm
818
840
865
893
925
958
993
1029
1067
1106
1145
1.2
Watts
1488
1760
2068
2417
2808
3243
3725
4256
4838
5474
6165
Bhp
0.70
0.92
1.18
1.49
1.85
2.26
2.72
3.24
3.82
4.46
5.17
Bhp
1.71
2.02
2.38
2.78
3.23
3.73
4.28
4.90
5.56
6.30
7.09
Rpm
556
591
629
669
709
751
794
837
882
926
972
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
791
0.91
630
967
1.11
697
1141
1001
1.15
661
1194
1.37
725
1383
1248
1.44
695
1458
1.68
756
1663
1534
1.76
732
1761
2.03
789
1982
1862
2.14
770
2106
2.42
825
2343
2234
2.57
809
2495
2.87
862
2749
2653
3.05
849
2931
3.37
900
3201
3122
3.59
891
3416
3.93
940
3702
3642
4.19
933
3953
4.55
980
4254
4217
4.85
975
4542
5.22
1021
4860
4847
5.57
1019
5189
5.97
1063
5521
Bhp
1.31
1.59
1.91
2.28
2.70
3.16
3.68
4.26
4.89
5.59
6.35
Rpm
760
784
812
843
876
911
948
986
1025
1065
1105
1.0
Watts
1314
1572
1866
2201
2577
2997
3465
3981
4549
5169
5846
Bhp
1.51
1.81
2.15
2.53
2.96
3.45
3.99
4.58
5.23
5.95
6.72
Rpm
874
893
915
942
971
1003
1036
1071
1107
1145
1183
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1661
1.91
927
1835
2.11
978
2008
1948
2.24
943
2136
2.46
992
2324
2270
2.61
964
2472
2.84
1011
2673
2632
3.03
988
2848
3.28
1033
3063
3037
3.49
1016
3266
3.76
1059
3494
3486
4.01
1045
3728
4.29
1087
3970
3982
4.58
1077
4238
4.87
1117
4492
4528
5.21
1111
4797
5.52
1150
5064
5124
5.89
1146
5407
6.22
1184
5688
5774
6.64
1182
6071
6.98
1219
6365
6479
7.45
1220
6790
7.81
1255
7098
Bhp
2.31
2.67
3.07
3.52
4.02
4.57
5.17
5.82
6.54
7.32
8.16
Rpm
1026
1039
1056
1076
1100
1127
1156
1187
1220
1254
1290
2.0
Watts
2182
2512
2876
3278
3721
4210
4745
5330
5967
6657
7403
Bhp
2.51
2.89
3.31
3.77
4.28
4.84
5.46
6.13
6.86
7.66
8.51
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units).
For standard motor with alternate drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units).
For alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range is
1000 to 1227 rpm. All other rpms require a field-supplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for 208/
230 and 460-v units) or 3.45 (for 575-v units). Maximum continuous Bhp for the alternate motor is 5.75. The maximum continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
20
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 7 — Fan Performance — 48HGD020 (Low Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
460
499
538
579
621
664
707
751
795
839
884
0.2
Watts
591
774
990
1243
1536
1871
2250
2676
3150
3676
4253
Rpm
814
834
857
884
913
945
978
1012
1047
1084
1121
1.2
Watts
1476
1740
2039
2376
2753
3172
3636
4145
4703
5311
5972
Bhp
0.68
0.89
1.14
1.43
1.77
2.15
2.59
3.08
3.62
4.23
4.89
Bhp
1.70
2.00
2.35
2.73
3.17
3.65
4.18
4.77
5.41
6.11
6.87
Rpm
548
581
617
654
693
732
772
813
855
897
940
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
774
0.89
623
951
1.09
692
1126
976
1.12
653
1170
1.35
717
1361
1212
1.39
685
1423
1.64
746
1630
1485
1.71
719
1715
1.97
778
1938
1798
2.07
755
2045
2.35
811
2285
2152
2.48
792
2417
2.78
846
2673
2550
2.93
830
2834
3.26
883
3106
2994
3.44
869
3295
3.79
920
3585
3487
4.01
909
3805
4.38
958
4112
4029
4.63
949
4366
5.02
997
4689
4625
5.32
990
4978
5.73
1037
5318
Bhp
1.29
1.56
1.88
2.23
2.63
3.07
3.57
4.12
4.73
5.39
6.12
Rpm
755
777
803
832
864
897
932
967
1004
1042
1080
1.0
Watts
1301
1551
1835
2158
2520
2925
3373
3868
4411
5004
5649
Bhp
1.50
1.78
2.11
2.48
2.90
3.36
3.88
4.45
5.07
5.75
6.50
Rpm
871
888
909
933
960
990
1022
1055
1089
1124
1160
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1650
1.90
924
1825
2.10
975
1999
1930
2.22
939
2119
2.44
988
2308
2243
2.58
958
2446
2.81
1005
2650
2594
2.98
980
2811
3.23
1026
3028
2984
3.43
1006
3215
3.70
1049
3445
3417
3.93
1034
3662
4.21
1076
3905
3895
4.48
1064
4153
4.78
1104
4409
4419
5.08
1095
4691
5.39
1135
4960
4992
5.74
1128
5277
6.07
1167
5561
5615
6.46
1163
5915
6.80
1200
6211
6290
7.23
1198
6604
7.60
1234
6914
Bhp
2.30
2.65
3.05
3.48
3.96
4.49
5.07
5.70
6.40
7.14
7.95
Rpm
1023
1035
1051
1070
1092
1117
1144
1173
1204
1236
1269
2.0
Watts
2173
2497
2853
3244
3674
4147
4665
5229
5842
6506
7223
Bhp
2.50
2.87
3.28
3.73
4.23
4.77
5.37
6.01
6.72
7.48
8.31
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
maximum continuous watts for the alternate motor is 6438. Do
5.
6.
21
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 8 — Fan Performance — 48HGF020 (High Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
470
511
553
597
641
686
732
779
826
873
921
0.2
Watts
611
802
1029
1297
1606
1961
2363
2815
3320
3879
4495
Rpm
818
840
865
893
925
958
993
1029
1067
1106
1145
1.2
Watts
1488
1760
2068
2417
2808
3243
3725
4256
4838
5474
6165
Bhp
0.70
0.92
1.18
1.49
1.85
2.26
2.72
3.24
3.82
4.46
5.17
Bhp
1.71
2.02
2.38
2.78
3.23
3.73
4.28
4.90
5.56
6.30
7.09
Rpm
556
591
629
669
709
751
794
837
882
926
972
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
791
0.91
630
967
1.11
697
1141
1001
1.15
661
1194
1.37
725
1383
1248
1.44
695
1458
1.68
756
1663
1534
1.76
732
1761
2.03
789
1982
1862
2.14
770
2106
2.42
825
2343
2234
2.57
809
2495
2.87
862
2749
2653
3.05
849
2931
3.37
900
3201
3122
3.59
891
3416
3.93
940
3702
3642
4.19
933
3953
4.55
980
4254
4217
4.85
975
4542
5.22
1021
4860
4847
5.57
1019
5189
5.97
1063
5521
Bhp
1.31
1.59
1.91
2.28
2.70
3.16
3.68
4.26
4.89
5.59
6.35
Rpm
760
784
812
843
876
911
948
986
1025
1065
1105
1.0
Watts
1314
1572
1866
2201
2577
2997
3465
3981
4549
5169
5846
Bhp
1.51
1.81
2.15
2.53
2.96
3.45
3.99
4.58
5.23
5.95
6.72
Rpm
874
893
915
942
971
1003
1036
1071
1107
1145
1183
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1661
1.91
927
1835
2.11
978
2008
1948
2.24
943
2136
2.46
992
2324
2270
2.61
964
2472
2.84
1011
2673
2632
3.03
988
2848
3.28
1033
3063
3037
3.49
1016
3266
3.76
1059
3494
3486
4.01
1045
3728
4.29
1087
3970
3982
4.58
1077
4238
4.87
1117
4492
4528
5.21
1111
4797
5.52
1150
5064
5124
5.89
1146
5407
6.22
1184
5688
5774
6.64
1182
6071
6.98
1219
6365
6479
7.45
1220
6790
7.81
1255
7098
Bhp
2.31
2.67
3.07
3.52
4.02
4.57
5.17
5.82
6.54
7.32
8.16
Rpm
1026
1039
1056
1076
1100
1127
1156
1187
1220
1254
1290
2.0
Watts
2182
2512
2876
3278
3721
4210
4745
5330
5967
6657
7403
Bhp
2.51
2.89
3.31
3.77
4.28
4.84
5.46
6.13
6.86
7.66
8.51
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
maximum continuous watts for the alternate motor is 6438. Do
5.
6.
22
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 9 — Fan Performance — 48HGD024 (Low Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
Rpm
590
633
677
722
767
813
859
906
952
999
1047
Rpm
891
921
954
988
1024
1060
1098
1137
1176
1216
1256
0.2
Watts
1276
1579
1925
2317
2758
3250
3795
4394
5051
5767
6544
1.2
Watts
2408
2792
3221
3696
4219
4792
5417
6096
6831
7624
8478
Bhp
1.47
1.82
2.21
2.67
3.17
3.74
4.36
5.05
5.81
6.63
7.53
Bhp
2.77
3.21
3.70
4.25
4.85
5.51
6.23
7.01
7.86
8.77
9.75
Rpm
663
703
744
786
828
871
915
959
1004
1049
1094
Rpm
940
968
999
1032
1066
1101
1138
1175
1214
1253
1292
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1516
1.74
727
1745
2.01
786
1968
1838
2.11
764
2084
2.40
820
2324
2203
2.53
803
2467
2.84
857
2723
2614
3.01
842
2896
3.33
894
3167
3073
3.53
883
3371
3.88
933
3660
3582
4.12
924
3897
4.48
972
4202
4143
4.77
966
4475
5.15
1012
4797
4759
5.47
1008
5107
5.87
1053
5445
5432
6.25
1051
5797
6.67
1095
6150
6163
7.09
1094
6544
7.53
1137
6913
6956
8.00
1138
7352
8.46
1180
7736
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
2625
3.02
987
2843
3.27 1032
3060
3024
3.48 1014
3255
3.74 1057
3485
3467
3.99 1042
3711
4.27 1084
3955
3956
4.55 1073
4214
4.85 1114
4470
4493
5.17 1106
4764
5.48 1145
5034
5080
5.84 1140
5365
6.17 1178
5649
5719
6.58 1176
6018
6.92 1213
6315
6413
7.38 1212
6726
7.74 1248
7036
7163
8.24 1250
7490
8.61 1285
7814
7970
9.17 1288
8312
9.56 1322
8649
8838
10.16 1327
9193
10.57 1360
9545
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
maximum continuous watts for the alternate motor is 6438. Do
5.
6.
23
Bhp
2.26
2.67
3.13
3.64
4.21
4.83
5.52
6.26
7.07
7.95
8.90
Rpm
840
872
907
942
979
1017
1056
1096
1136
1177
1219
Bhp
3.52
4.01
4.55
5.14
5.79
6.50
7.26
8.09
8.99
9.95
10.98
Rpm
1076
1099
1125
1153
1183
1215
1249
1283
1319
1355
1393
1.0
Watts
2189
2560
2974
3434
3942
4500
5110
5774
6494
7272
8111
2.0
Watts
3277
3716
4198
4726
5303
5930
6610
7344
8135
8984
9893
Bhp
2.52
2.94
3.42
3.95
4.53
5.18
5.88
6.64
7.47
8.36
9.33
Bhp
3.77
4.27
4.83
5.44
6.10
6.82
7.60
8.45
9.36
10.33
11.38
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 10 — Fan Performance — 48HGF024 (High Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
Rpm
607
652
699
746
794
842
891
940
990
1039
1089
Rpm
900
933
967
1003
1041
1079
1119
1160
1202
1244
1287
0.2
Watts
1329
1648
2013
2428
2895
3415
3992
4628
5325
6085
6911
1.2
Watts
2448
2847
3292
3785
4330
4926
5578
6288
7056
7887
8781
Bhp
1.53
1.90
2.32
2.79
3.33
3.93
4.59
5.32
6.12
7.00
7.95
Bhp
2.82
3.27
3.79
4.35
4.98
5.67
6.42
7.23
8.12
9.07
10.10
Rpm
677
719
763
807
851
897
943
990
1037
1085
1133
Rpm
949
979
1011
1046
1082
1119
1158
1198
1238
1279
1321
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1565
1.80
740
1791
2.06
797
2013
1902
2.19
779
2145
2.47
833
2382
2285
2.63
819
2545
2.93
872
2798
2716
3.12
861
2993
3.44
911
3262
3198
3.68
904
3491
4.02
952
3776
3735
4.30
947
4043
4.65
994
4343
4327
4.98
991
4650
5.35
1036
4966
4977
5.72
1036
5316
6.11
1080
5646
5688
6.54
1082
6042
6.95
1124
6386
6462
7.43
1128
6829
7.85
1168
7188
7301
8.40
1174
7682
8.83
1213
8055
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
2664
3.06
995
2879
3.31 1040
3095
3077
3.54 1023
3305
3.80 1066
3534
3535
4.07 1054
3778
4.35 1095
4019
4043
4.65 1087
4298
4.94 1127
4553
4601
5.29 1122
4870
5.60 1160
5138
5212
5.99 1158
5495
6.32 1195
5776
5878
6.76 1195
6174
7.10 1231
6468
6601
7.59 1234
6912
7.95 1269
7219
7384
8.49 1273
7708
8.87 1308
8029
8228
9.46 1314
8566
9.85 1347
8900
9137
10.51 1355
9488
10.91 1387
9836
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
maximum continuous watts for the alternate motor is 6438. Do
5.
6.
24
Bhp
2.31
2.74
3.22
3.75
4.34
5.00
5.71
6.49
7.35
8.27
9.26
Rpm
850
884
921
958
998
1038
1079
1121
1163
1207
1251
Bhp
3.56
4.06
4.62
5.24
5.91
6.64
7.44
8.30
9.23
10.24
11.31
Rpm
1083
1108
1135
1165
1197
1231
1267
1303
1341
1379
—
1.0
Watts
2231
2616
3046
3525
4055
4637
5274
5970
6724
7541
8421
2.0
Watts
3310
3762
4260
4806
5404
6055
6761
7524
8347
9231
—
Bhp
2.57
3.01
3.50
4.05
4.66
5.33
6.07
6.87
7.73
8.67
9.69
Bhp
3.81
4.33
4.90
5.53
6.22
6.96
7.78
8.65
9.60
10.62
—
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 11 — Fan Performance — 48HGD028 (Low Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
Rpm
813
859
906
952
999
1047
1094
1142
1190
—
—
0.2
Watts
3250
3795
4394
5051
5767
6544
7385
8291
9264
—
—
Rpm
1060
1098
1137
1176
1216
1256
1298
—
—
—
—
1.2
Watts
4792
5417
6096
6831
7624
8478
9393
—
—
—
—
Bhp
3.74
4.36
5.05
5.81
6.63
7.53
8.49
9.54
10.65
—
—
Bhp
5.51
6.23
7.01
7.86
8.77
9.75
10.80
—
—
—
—
Rpm
871
915
959
1004
1049
1094
1140
1186
1232
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
3582
4.12
924
3897
4.48
972
4202
4143
4.77
966
4475
5.15 1012
4797
4759
5.47 1008
5107
5.87 1053
5445
5432
6.25 1051
5797
6.67 1095
6150
6163
7.09 1094
6544
7.53 1137
6913
6956
8.00 1138
7352
8.46 1180
7736
7811
8.98 1183
8222
9.46 1223
8622
8732
10.04 1227
9157
10.53 1266
9571
9718
11.18
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
4.83
5.52
6.26
7.07
7.95
8.90
9.92
11.01
—
—
—
Rpm
1017
1056
1096
1136
1177
1219
1261
1303
—
—
—
1.0
Watts
4500
5110
5774
6494
7272
8111
9011
9976
—
—
—
Bhp
5.18
5.88
6.64
7.47
8.36
9.33
10.36
11.47
—
—
—
Rpm
1101
1138
1175
1214
1253
1292
1333
—
—
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
5080
5.84 1140
5365
6.17 1178
5649
5719
6.58 1176
6018
6.92 1213
6315
6413
7.38 1212
6726
7.74 1248
7036
7163
8.24 1250
7490
8.61 1285
7814
7970
9.17 1288
8312
9.56 1322
8649
8838
10.16 1327
9193
10.57 1360
9545
9768
11.23
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
6.50
7.26
8.09
8.99
9.95
10.98
—
—
—
—
—
Rpm
1215
1249
1283
1319
1355
1393
—
—
—
—
—
2.0
Watts
5930
6610
7344
8135
8984
9893
—
—
—
—
—
Bhp
6.82
7.60
8.45
9.36
10.33
11.38
—
—
—
—
—
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 799 to
965 rpm. For standard motor with alternate drive, the drive range is
717 to 882 rpm. For alternate motor with standard drive, the drive
range is 939 to 1152 rpm. For alternate motor with optional drive,
the drive range is 1152 to 1366 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 8.63. Maximum continuous Bhp for the alternate motor is 11.50. The maximum continuous watts for the standard motor is 6438. The
maximum continuous watts for the alternate motor is 8579. Do
5.
6.
25
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 12 — Fan Performance — 48HGF028 (High Heat Units) — Vertical Discharge Units*
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
Rpm
842
891
940
990
1039
1089
1139
1189
1240
—
—
0.2
Watts
3415
3992
4628
5325
6085
6911
7803
8766
9799
—
—
Rpm
1079
1119
1160
1202
1244
1287
1330
—
—
—
—
1.2
Watts
4926
5578
6288
7056
7887
8781
9742
—
—
—
—
Bhp
3.93
4.59
5.32
6.12
7.00
7.95
8.97
10.08
11.27
—
—
Bhp
5.67
6.42
7.23
8.12
9.07
10.10
11.20
—
—
—
—
Rpm
897
943
990
1037
1085
1133
1181
1229
—
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
3735
4.30
947
4043
4.65
994
4343
4327
4.98
991
4650
5.35 1036
4966
4977
5.72 1036
5316
6.11 1080
5646
5688
6.54 1082
6042
6.95 1124
6386
6462
7.43 1128
6829
7.85 1168
7188
7301
8.40 1174
7682
8.83 1213
8055
8206
9.44 1221
8601
9.89 1259
8987
9181
10.56 1268
9589
11.03 1305
9989
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
5.00
5.71
6.49
7.35
8.27
9.26
10.34
11.49
—
—
—
Rpm
1038
1079
1121
1163
1207
1251
1295
—
—
—
—
1.0
Watts
4637
5274
5970
6724
7541
8421
9367
—
—
—
—
Bhp
5.33
6.07
6.87
7.73
8.67
9.69
10.77
—
—
—
—
Rpm
1119
1158
1198
1238
1279
1321
—
—
—
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
5212
5.99 1158
5495
6.32 1195
5776
5878
6.76 1195
6174
7.10 1231
6468
6601
7.59 1234
6912
7.95 1269
7219
7384
8.49 1273
7708
8.87 1308
8029
8228
9.46 1314
8566
9.85 1347
8900
9137
10.51 1355
9488
10.91 1387
9836
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
6.64
7.44
8.30
9.23
10.24
11.31
—
—
—
—
—
Rpm
1231
1267
1303
1341
1379
—
—
—
—
—
—
2.0
Watts
6055
6761
7524
8347
9231
—
—
—
—
—
—
Bhp
6.96
7.78
8.65
9.60
10.62
—
—
—
—
—
—
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 799 to
965 rpm. For standard motor with alternate drive, the drive range is
717 to 882 rpm. For alternate motor with standard drive, the drive
range is 939 to 1152 rpm. For alternate motor with optional drive,
the drive range is 1152 to 1366 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 8.63. Maximum continuous Bhp for the alternate motor is 11.50. The maximum continuous watts for the standard motor is 6438. The
maximum continuous watts for the alternate motor is 8579. Do
5.
6.
26
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 13 — Fan Performance — 48HGD014 (Low Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
457
498
539
581
625
671
718
766
814
863
913
0.2
Watts
568
743
955
1207
1505
1851
2250
2703
3212
3779
4406
Rpm
†
842
851
870
897
928
963
999
1037
1075
1115
1.2
Watts
†
1834
2057
2341
2678
3066
3503
3987
4520
5102
5735
Bhp
0.65
0.86
1.10
1.39
1.73
2.13
2.59
3.11
3.69
4.35
5.07
Bhp
†
2.11
2.37
2.69
3.08
3.53
4.03
4.59
5.20
5.87
6.60
Rpm
538
574
612
651
691
732
773
816
860
904
950
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
747
0.86
614
938
1.08
690
1154
939
1.08
641
1135
1.31
707
1345
1164
1.34
674
1372
1.58
733
1586
1426
1.64
710
1649
1.90
765
1871
1727
1.99
748
1965
2.26
800
2199
2071
2.38
787
2321
2.67
837
2570
2462
2.83
827
2721
3.13
876
2984
2905
3.34
867
3167
3.64
915
3443
3402
3.91
908
3664
4.21
955
3950
3960
4.55
950
4216
4.85
995
4507
4578
5.27
993
4826
5.55
1036
5118
Bhp
1.33
1.55
1.82
2.15
2.53
2.96
3.43
3.96
4.54
5.18
5.89
Rpm
769
774
791
817
849
884
920
958
997
1037
1076
1.0
Watts
1399
1577
1812
2100
2436
2817
3243
3716
4236
4805
5425
Bhp
1.61
1.81
2.08
2.42
2.80
3.24
3.73
4.27
4.87
5.53
6.24
Rpm
†
910
911
923
945
972
1004
1038
1075
1112
1151
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
†
†
†
†
†
†
†
2113
2.43
†
†
†
†
†
2323
2.67
972
2609
3.00
†
†
2597
2.99
977
2870
3.30
1032
3162
2931
3.37
993
3197
3.68
1042
3477
3321
3.82
1016
3585
4.12
1060
3861
3765
4.33
1045
4032
4.64
1085
4306
4258
4.90
1077
4532
5.21
1114
4810
4802
5.52
1111
5085
5.85
1147
5370
5397
6.21
1148
5690
6.54
1182
5984
6042
6.95
1185
6348
7.30
1218
6652
Bhp
†
†
†
3.64
4.00
4.44
4.95
5.53
6.18
6.88
7.65
Rpm
†
†
†
†
1091
1104
1125
1152
1182
1215
1251
2.0
Watts
†
†
†
†
3774
4148
4589
5094
5658
6279
6957
Bhp
†
†
†
†
4.34
4.77
5.28
5.86
6.51
7.22
8.00
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units). For
standard motor with alternate drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units). For
alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range
is 1000 to 1227 rpm. All other rpms require a field-supplied drive.
†Contact Carrier Applications Engineering for operation in this
region.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for
208/230 and 460-v units) or 3.45 (for 575-v units). Maximum continuous Bhp for the alternate motor is 5.75. The maximum continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
27
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 14 — Fan Performance — 48HGF014 (High Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
469
511
553
597
642
688
735
784
833
882
933
0.2
Watts
589
774
996
1258
1563
1917
2322
2781
3296
3870
4504
Rpm
†
854
864
885
914
947
983
1021
1061
1101
1142
1.2
Watts
†
1861
2085
2373
2721
3125
3582
4093
4657
5274
5945
Bhp
0.68
0.89
1.15
1.45
1.80
2.20
2.67
3.20
3.79
4.45
5.18
Bhp
†
2.14
2.40
2.73
3.13
3.59
4.12
4.71
5.36
6.07
6.84
Rpm
549
586
626
667
709
751
794
838
883
928
974
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
762
0.88
624
951
1.09
701
1170
963
1.11
653
1154
1.33
719
1364
1202
1.38
688
1402
1.61
747
1611
1480
1.70
726
1693
1.95
780
1909
1798
2.07
766
2028
2.33
817
2253
2160
2.48
807
2406
2.77
856
2645
2568
2.95
848
2830
3.25
896
3083
3027
3.48
891
3301
3.80
937
3570
3539
4.07
933
3823
4.40
979
4107
4109
4.73
976
4398
5.06
1021
4696
4739
5.45
1020
5030
5.79
1064
5339
Bhp
1.35
1.57
1.85
2.20
2.59
3.04
3.55
4.11
4.72
5.40
6.14
Rpm
779
786
805
833
866
902
941
980
1021
1063
1104
1.0
Watts
1420
1599
1837
2133
2482
2882
3333
3833
4384
4987
5645
Bhp
1.63
1.84
2.11
2.45
2.85
3.32
3.83
4.41
5.04
5.74
6.49
Rpm
†
921
925
939
961
991
1024
1060
1098
1137
1178
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
†
†
†
†
†
†
†
2146
2.47
†
†
†
†
†
2356
2.71
985
2649
3.05
1045
2960
2631
3.03
993
2909
3.35
1047
3207
2972
3.42
1010
3239
3.73
1058
3524
3376
3.88
1034
3638
4.18
1078
3913
3837
4.41
1064
4099
4.71
1105
4370
4354
5.01
1098
4620
5.31
1136
4892
4928
5.67
1134
5200
5.98
1170
5477
5556
6.39
1172
5838
6.71
1207
6121
6240
7.18
1212
6533
7.51
1245
6826
Bhp
†
†
3.40
3.69
4.05
4.50
5.03
5.63
6.30
7.04
7.85
Rpm
†
†
†
1101
1108
1123
1145
1173
1205
1240
1277
2.0
Watts
†
†
†
3523
3826
4203
4653
5173
5759
6408
7119
Bhp
†
†
†
4.05
4.40
4.83
5.35
5.95
6.62
7.37
8.19
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units). For
standard motor with alternate drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units). For
alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range
is 1000 to 1227 rpm. All other rpms require a field-supplied drive.
†Contact Carrier Applications Engineering for operation in this
region.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for
208/230 and 460-v units) or 3.45 (for 575-v units). Maximum continuous Bhp for the alternate motor is 5.75. The maximum continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
28
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 15 — Fan Performance — 48HGD016 (Low Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
457
498
539
581
625
671
718
766
814
863
913
0.2
Watts
568
743
955
1207
1505
1851
2250
2703
3212
3779
4406
Rpm
†
842
851
870
897
928
963
999
1037
1075
1115
1.2
Watts
†
1834
2057
2341
2678
3066
3503
3987
4520
5102
5735
Bhp
0.65
0.86
1.10
1.39
1.73
2.13
2.59
3.11
3.69
4.35
5.07
Bhp
†
2.11
2.37
2.69
3.08
3.53
4.03
4.59
5.20
5.87
6.60
Rpm
538
574
612
651
691
732
773
816
860
904
950
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
747
0.86
614
938
1.08
690
1154
939
1.08
641
1135
1.31
707
1345
1164
1.34
674
1372
1.58
733
1586
1426
1.64
710
1649
1.90
765
1871
1727
1.99
748
1965
2.26
800
2199
2071
2.38
787
2321
2.67
837
2570
2462
2.83
827
2721
3.13
876
2984
2905
3.34
867
3167
3.64
915
3443
3402
3.91
908
3664
4.21
955
3950
3960
4.55
950
4216
4.85
995
4507
4578
5.27
993
4826
5.55
1036
5118
Bhp
1.33
1.55
1.82
2.15
2.53
2.96
3.43
3.96
4.54
5.18
5.89
Rpm
769
774
791
817
849
884
920
958
997
1037
1076
1.0
Watts
1399
1577
1812
2100
2436
2817
3243
3716
4236
4805
5425
Bhp
1.61
1.81
2.08
2.42
2.80
3.24
3.73
4.27
4.87
5.53
6.24
Rpm
†
910
911
923
945
972
1004
1038
1075
1112
1151
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
†
†
†
†
†
†
†
2113
2.43
†
†
†
†
†
2323
2.67
972
2609
3.00
†
†
2597
2.99
977
2870
3.30
1032
3162
2931
3.37
993
3197
3.68
1042
3477
3321
3.82
1016
3585
4.12
1060
3861
3765
4.33
1045
4032
4.64
1085
4306
4258
4.90
1077
4532
5.21
1114
4810
4802
5.52
1111
5085
5.85
1147
5370
5397
6.21
1148
5690
6.54
1182
5984
6042
6.95
1185
6348
7.30
1218
6652
Bhp
†
†
†
3.64
4.00
4.44
4.95
5.53
6.18
6.88
7.65
Rpm
†
†
†
†
1091
1104
1125
1152
1182
1215
1251
2.0
Watts
†
†
†
†
3774
4148
4589
5094
5658
6279
6957
Bhp
†
†
†
†
4.34
4.77
5.28
5.86
6.51
7.22
8.00
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units). For
standard motor with alternate drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units). For
alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range
is 1000 to 1227 rpm. All other rpms require a field-supplied drive.
†Contact Carrier Applications Engineering for operation in this
region.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for
208/230 and 460-v units) or 3.45 (for 575-v units). Maximum
continuous Bhp for the alternate motor is 5.75. The maximum
continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
29
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 16 — Fan Performance — 48HGF016 (High Heat Units) Horizontal Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
469
511
553
597
642
688
735
784
833
882
933
0.2
Watts
589
774
996
1258
1563
1917
2322
2781
3296
3870
4504
Rpm
†
854
864
885
914
947
983
1021
1061
1101
1142
1.2
Watts
†
1861
2085
2373
2721
3125
3582
4093
4657
5274
5945
Bhp
0.68
0.89
1.15
1.45
1.80
2.20
2.67
3.20
3.79
4.45
5.18
Bhp
†
2.14
2.40
2.73
3.13
3.59
4.12
4.71
5.36
6.07
6.84
Rpm
549
586
626
667
709
751
794
838
883
928
974
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
762
0.88
624
951
1.09
701
1170
963
1.11
653
1154
1.33
719
1364
1202
1.38
688
1402
1.61
747
1611
1480
1.70
726
1693
1.95
780
1909
1798
2.07
766
2028
2.33
817
2253
2160
2.48
807
2406
2.77
856
2645
2568
2.95
848
2830
3.25
896
3083
3027
3.48
891
3301
3.80
937
3570
3539
4.07
933
3823
4.40
979
4107
4109
4.73
976
4398
5.06
1021
4696
4739
5.45
1020
5030
5.79
1064
5339
Bhp
1.35
1.57
1.85
2.20
2.59
3.04
3.55
4.11
4.72
5.40
6.14
Rpm
779
786
805
833
866
902
941
980
1021
1063
1104
1.0
Watts
1420
1599
1837
2133
2482
2882
3333
3833
4384
4987
5645
Bhp
1.63
1.84
2.11
2.45
2.85
3.32
3.83
4.41
5.04
5.74
6.49
Rpm
†
921
925
939
961
991
1024
1060
1098
1137
1178
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
†
†
†
†
†
†
†
2146
2.47
†
†
†
†
†
2356
2.71
985
2649
3.05
1045
2960
2631
3.03
993
2909
3.35
1047
3207
2972
3.42
1010
3239
3.73
1058
3524
3376
3.88
1034
3638
4.18
1078
3913
3837
4.41
1064
4099
4.71
1105
4370
4354
5.01
1098
4620
5.31
1136
4892
4928
5.67
1134
5200
5.98
1170
5477
5556
6.39
1172
5838
6.71
1207
6121
6240
7.18
1212
6533
7.51
1245
6826
Bhp
†
†
3.40
3.69
4.05
4.50
5.03
5.63
6.30
7.04
7.85
Rpm
†
†
†
1101
1108
1123
1145
1173
1205
1240
1277
2.0
Watts
†
†
†
3523
3826
4203
4653
5173
5759
6408
7119
Bhp
†
†
†
4.05
4.40
4.83
5.35
5.95
6.62
7.37
8.19
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
*For standard motor with standard drive, the drive range is 618 to
789 rpm (208/230 and 460-v units) or 609 to 778 (575-v units). For
standard motor with alternate drive, the drive range is 485 to
613 rpm (208/230 and 460-v units) or 472 to 619 (575-v units). For
alternate motor with standard drive, the drive range is 778 to
1021 rpm. For alternate motor with optional drive, the drive range
is 1000 to 1227 rpm. All other rpms require a field-supplied drive.
†Contact Carrier Applications Engineering for operation in this
region.
NOTES:
1. Maximum continuous Bhp for the standard motor is 4.25 (for
208/230 and 460-v units) or 3.45 (for 575-v units). Maximum
continuous Bhp for the alternate motor is 5.75. The maximum
continuous watts for the standard motor is 3171 (for 208/230 and
3.
4.
5.
6.
30
460-v units) or 2574 (for 575-v units). The maximum continuous
watts for the alternate motor is 4290. Do not adjust motor rpm
such that motor maximum Bhp and/or watts is exceeded at the
maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 17 — Fan Performance — 48HGD020 (Low Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
457
498
539
581
625
671
718
766
814
863
913
0.2
Watts
568
743
955
1207
1505
1851
2250
2703
3212
3779
4406
Rpm
†
842
851
870
897
928
963
999
1037
1075
1115
1.2
Watts
†
1834
2057
2341
2678
3066
3503
3987
4520
5102
5735
Bhp
0.65
0.86
1.10
1.39
1.73
2.13
2.59
3.11
3.69
4.35
5.07
Bhp
†
2.11
2.37
2.69
3.08
3.53
4.03
4.59
5.20
5.87
6.60
Rpm
538
574
612
651
691
732
773
816
860
904
950
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
747
0.86
614
938
1.08
690
1154
939
1.08
641
1135
1.31
707
1345
1164
1.34
674
1372
1.58
733
1586
1426
1.64
710
1649
1.90
765
1871
1727
1.99
748
1965
2.26
800
2199
2071
2.38
787
2321
2.67
837
2570
2462
2.83
827
2721
3.13
876
2984
2905
3.34
867
3167
3.64
915
3443
3402
3.91
908
3664
4.21
955
3950
3960
4.55
950
4216
4.85
995
4507
4578
5.27
993
4826
5.55
1036
5118
Bhp
1.33
1.55
1.82
2.15
2.53
2.96
3.43
3.96
4.54
5.18
5.89
Rpm
769
774
791
817
849
884
920
958
997
1037
1076
1.0
Watts
1399
1577
1812
2100
2436
2817
3243
3716
4236
4805
5425
Bhp
1.61
1.81
2.08
2.42
2.80
3.24
3.73
4.27
4.87
5.53
6.24
Rpm
†
910
911
923
945
972
1004
1038
1075
1112
1151
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
†
†
†
†
†
†
†
2113
2.43
†
†
†
†
†
2323
2.67
972
2609
3.00
†
†
2597
2.99
977
2870
3.30
1032
3162
2931
3.37
993
3197
3.68
1042
3477
3321
3.82
1016
3585
4.12
1060
3861
3765
4.33
1045
4032
4.64
1085
4306
4258
4.90
1077
4532
5.21
1114
4810
4802
5.52
1111
5085
5.85
1147
5370
5397
6.21
1148
5690
6.54
1182
5984
6042
6.95
1185
6348
7.30
1218
6652
Bhp
†
†
†
3.64
4.00
4.44
4.95
5.53
6.18
6.88
7.65
Rpm
†
†
†
†
1091
1104
1125
1152
1182
1215
1251
2.0
Watts
†
†
†
†
3774
4148
4589
5094
5658
6279
6957
Bhp
†
†
†
†
4.34
4.77
5.28
5.86
6.51
7.22
8.00
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
†Contact Carrier Applications Engineering for operation in this
region.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
maximum continuous watts for the alternate motor is 6438. Do
5.
6.
31
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 18 — Fan Performance — 48HGF020 (High Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
AIRFLOW
(cfm)
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Rpm
469
511
553
597
642
688
735
784
833
882
933
0.2
Watts
589
774
996
1258
1563
1917
2322
2781
3296
3870
4504
Rpm
†
854
864
885
914
947
983
1021
1061
1101
1142
1.2
Watts
†
1861
2085
2373
2721
3125
3582
4093
4657
5274
5945
Bhp
0.68
0.89
1.15
1.45
1.80
2.20
2.67
3.20
3.79
4.45
5.18
Bhp
†
2.14
2.40
2.73
3.13
3.59
4.12
4.71
5.36
6.07
6.84
Rpm
549
586
626
667
709
751
794
838
883
928
974
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
762
0.88
624
951
1.09
701
1170
963
1.11
653
1154
1.33
719
1364
1202
1.38
688
1402
1.61
747
1611
1480
1.70
726
1693
1.95
780
1909
1798
2.07
766
2028
2.33
817
2253
2160
2.48
807
2406
2.77
856
2645
2568
2.95
848
2830
3.25
896
3083
3027
3.48
891
3301
3.80
937
3570
3539
4.07
933
3823
4.40
979
4107
4109
4.73
976
4398
5.06
1021
4696
4739
5.45
1020
5030
5.79
1064
5339
Bhp
1.35
1.57
1.85
2.20
2.59
3.04
3.55
4.11
4.72
5.40
6.14
Rpm
779
786
805
833
866
902
941
980
1021
1063
1104
1.0
Watts
1420
1599
1837
2133
2482
2882
3333
3833
4384
4987
5645
Bhp
1.63
1.84
2.11
2.45
2.85
3.32
3.83
4.41
5.04
5.74
6.49
Rpm
†
921
925
939
961
991
1024
1060
1098
1137
1178
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
†
†
†
†
†
†
†
2146
2.47
†
†
†
†
†
2356
2.71
985
2649
3.05
1045
2960
2631
3.03
993
2909
3.35
1047
3207
2972
3.42
1010
3239
3.73
1058
3524
3376
3.88
1034
3638
4.18
1078
3913
3837
4.41
1064
4099
4.71
1105
4370
4354
5.01
1098
4620
5.31
1136
4892
4928
5.67
1134
5200
5.98
1170
5477
5556
6.39
1172
5838
6.71
1207
6121
6240
7.18
1212
6533
7.51
1245
6826
Bhp
†
†
3.40
3.69
4.05
4.50
5.03
5.63
6.30
7.04
7.85
Rpm
†
†
†
1101
1108
1123
1145
1173
1205
1240
1277
2.0
Watts
†
†
†
3523
3826
4203
4653
5173
5759
6408
7119
Bhp
†
†
†
4.05
4.40
4.83
5.35
5.95
6.62
7.37
8.19
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
†Contact Carrier Applications Engineering for operation in this
region.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
5.
6.
32
maximum continuous watts for the alternate motor is 6438. Do
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 19 — Fan Performance — 48HGD024 (Low Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
Rpm
591
636
682
729
778
826
876
926
976
1027
1078
Rpm
878
905
937
972
1010
1049
1088
1129
1170
1211
1253
0.2
Watts
1234
1536
1886
2288
2745
3257
3829
4461
5156
5916
6742
1.2
Watts
2376
2720
3116
3563
4059
4606
5203
5854
6559
7322
8144
Bhp
1.42
1.77
2.17
2.63
3.16
3.75
4.40
5.13
5.93
6.80
7.75
Bhp
2.73
3.13
3.58
4.10
4.67
5.30
5.98
6.73
7.54
8.42
9.37
Rpm
659
701
743
786
829
874
920
966
1013
1061
1109
Rpm
931
953
981
1013
1049
1086
1125
1164
1204
1245
1287
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1456
1.67
718
1679
1.93
772
1902
1766
2.03
757
2003
2.30
808
2238
2118
2.44
797
2369
2.73
846
2618
2518
2.90
838
2780
3.20
886
3043
2968
3.41
880
3239
3.72
927
3515
3474
4.00
922
3747
4.31
968
4035
4039
4.64
966
4311
4.96
1009
4607
4663
5.36
1009
4933
5.67
1052
5235
5352
6.16
1054
5616
6.46
1094
5920
6106
7.02
1099
6364
7.32
1138
6667
6929
7.97
1145
7179
8.26
1182
7479
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts Bhp Rpm
Watts
Bhp
Rpm Watts
2635
3.03
985
2912
3.35
1040
3207
2975
3.42 1001
3244
3.73
1050
3528
3374
3.88 1025
3641
4.19
1069
3919
3827
4.40 1054
4096
4.71
1095
4373
4332
4.98 1087
4607
5.30
1125
4887
4888
5.62 1122
5172
5.95
1158
5459
5498
6.32 1160
5792
6.66
1194
6087
6161
7.09 1198
6467
7.44
1231
6771
6879
7.91 1238
7197
8.28
1270
7512
7653
8.80 1278
7983
9.18
1309
8311
8487
9.76 1318
8828
10.15
1349
9168
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
maximum continuous watts for the alternate motor is 6438. Do
5.
6.
33
Bhp
2.19
2.57
3.01
3.50
4.04
4.64
5.30
6.02
6.81
7.67
8.60
Bhp
3.69
4.06
4.51
5.03
5.62
6.28
7.00
7.79
8.64
9.56
10.54
Rpm
825
857
892
930
969
1009
1050
1091
1133
1175
1218
Rpm
1095
1100
1114
1135
1162
1193
1227
1263
1301
1339
1379
1.0
Watts
2133
2475
2865
3303
3787
4322
4906
5544
6238
6991
7806
2.0
Watts
3519
3828
4209
4659
5173
5750
6384
7077
7828
8637
9506
Bhp
2.45
2.85
3.30
3.80
4.36
4.97
5.64
6.38
7.17
8.04
8.98
Bhp
4.05
4.40
4.84
5.36
5.95
6.61
7.34
8.14
9.00
9.93
10.93
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 20 — Fan Performance — 48HGF024 (High Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
AIRFLOW
(cfm)
5,000
5,500
6,000
6,500
7,000
7,500
8,000
8,500
9,000
9,500
10,000
Rpm
607
653
700
748
797
847
897
947
998
1050
1102
Rpm
893
922
955
992
1032
1072
1114
1156
1199
1242
1286
0.2
Watts
1287
1599
1959
2371
2837
3359
3941
4583
5290
6062
6902
1.2
Watts
2409
2763
3174
3641
4163
4739
5371
6060
6807
7614
8482
Bhp
1.48
1.84
2.25
2.73
3.26
3.86
4.53
5.27
6.08
6.97
7.94
Bhp
2.77
3.18
3.65
4.19
4.79
5.45
6.18
6.97
7.83
8.76
9.76
Rpm
675
719
763
807
852
898
944
991
1039
1088
1137
Rpm
946
970
999
1033
1070
1109
1150
1191
1233
1276
1319
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm
Watts
Bhp
Rpm
Watts
1509
1.74
733
1723
1.98
787
1939
1836
2.11
774
2065
2.37
825
2291
2208
2.54
817
2453
2.82
865
2691
2627
3.02
860
2888
3.32
907
3140
3097
3.56
903
3372
3.88
949
3640
3621
4.16
947
3908
4.49
992
4191
4203
4.83
992
4499
5.17
1036
4795
4844
5.57
1037
5146
5.92
1080
5456
5549
6.38
1082
5855
6.73
1124
6176
6320
7.27
1129
6628
7.62
1169
6956
7159
8.23
1175
7467
8.59
1214
7801
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
2670
3.07 1001
2952
3.40 1055
3253
3017
3.47 1018
3288
3.78 1067
3576
3427
3.94 1043
3693
4.25 1088
3972
3897
4.48 1074
4162
4.79 1114
4437
4426
5.09 1108
4693
5.40 1146
4968
5011
5.76 1145
5285
6.08 1181
5564
5654
6.50 1184
5936
6.83 1218
6222
6355
7.31 1225
6648
7.65 1257
6941
7115
8.18 1266
7419
8.53 1298
7722
7934
9.13 1308
8252
9.49 1339
8566
8817
10.14 1351
9147
10.52 1381
9472
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 658 to
808 rpm. For standard motor with alternate drive, the drive range is
794 to 974 rpm. For alternate motor with standard drive, the drive
range is 949 to 1145 rpm. For alternate motor with optional drive,
the drive range is 1126 to 1328 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 5.75. Maximum continuous Bhp for the alternate motor is 8.63. The maximum continuous watts for the standard motor is 4290. The
maximum continuous watts for the alternate motor is 6438. Do
5.
6.
34
Bhp
2.23
2.63
3.09
3.61
4.19
4.82
5.52
6.28
7.10
8.00
8.97
Rpm
840
874
911
950
991
1033
1076
1119
1163
1207
1251
Bhp
3.74
4.11
4.57
5.10
5.71
6.40
7.16
7.98
8.88
9.85
10.89
Rpm
1109
1116
1132
1155
1184
1216
1252
1289
1329
1369
—
1.0
Watts
2166
2522
2930
3390
3902
4467
5086
5761
6494
7287
8143
2.0
Watts
3573
3882
4266
4724
5252
5848
6511
7236
8026
8879
—
Bhp
2.49
2.90
3.37
3.90
4.49
5.14
5.85
6.63
7.47
8.38
9.37
Bhp
4.11
4.46
4.91
5.43
6.04
6.73
7.49
8.32
9.23
10.21
—
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 21 — Fan Performance — 48HGD028 (Low Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
Rpm
826
876
926
976
1027
1078
1129
1180
1231
—
—
0.2
Watts
3257
3829
4461
5156
5916
6742
7639
8606
9646
—
—
Rpm
1049
1088
1129
1170
1211
1253
1296
1338
—
—
—
1.2
Watts
4606
5203
5854
6559
7322
8144
9031
9983
—
—
—
Bhp
3.75
4.40
5.13
5.93
6.80
7.75
8.79
9.90
11.09
—
—
Bhp
5.30
5.98
6.73
7.54
8.42
9.37
10.39
11.48
—
—
—
Rpm
874
920
966
1013
1061
1109
1158
1207
1257
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
3474
4.00
923
3748
4.31
968
4035
4039
4.64
966
4311
4.96 1009
4607
4663
5.36 1009
4933
5.67 1052
5235
5352
6.16 1054
5616
6.46 1094
5920
6106
7.02 1099
6364
7.32 1138
6667
6929
7.97 1145
7179
8.26 1182
7479
7821
8.99 1191
8064
9.27 1226
8358
8784
10.10 1238
9021
10.38 1272
9310
9822
11.30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
4.64
5.30
6.02
6.81
7.67
8.60
9.61
10.71
—
—
—
Rpm
1009
1050
1091
1133
1175
1218
1261
1305
—
—
—
1.0
Watts
4322
4906
5544
6238
6991
7806
8686
9635
—
—
—
Bhp
4.97
5.64
6.38
7.17
8.04
8.98
9.99
11.08
—
—
—
Rpm
1086
1125
1164
1204
1245
1287
1328
—
—
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
4888
5.62 1122
5172
5.95 1158
5459
5498
6.32 1160
5792
6.66 1194
6087
6161
7.09 1198
6467
7.44 1231
6771
6879
7.91 1238
7197
8.28 1270
7512
7653
8.80 1278
7983
9.18 1309
8311
8487
9.76 1318
8828
10.15 1349
9168
9382
10.79 1360
9734
11.20
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
6.28
7.00
7.79
8.64
9.56
10.54
—
—
—
—
—
Rpm
1193
1227
1263
1301
1339
1379
—
—
—
—
—
2.0
Watts
5750
6384
7077
7828
8637
9506
—
—
—
—
—
Bhp
6.61
7.34
8.14
9.00
9.93
10.93
—
—
—
—
—
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 799 to
965 rpm. For standard motor with alternate drive, the drive range is
717 to 882 rpm. For alternate motor with standard drive, the drive
range is 939 to 1152 rpm. For alternate motor with optional drive,
the drive range is 1152 to 1366 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 8.63. Maximum continuous Bhp for the alternate motor is 11.50. The maximum continuous watts for the standard motor is 6438. The
maximum continuous watts for the alternate motor is 8579. Do
5.
6.
35
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 22 — Fan Performance — 48HGF028 (High Heat Units) — Horizontal Discharge Units*
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
AIRFLOW
(cfm)
7,500
8,000
8,500
9,000
9,500
10,000
10,500
11,000
11,500
12,000
12,500
Rpm
847
897
947
998
1050
1102
1153
1205
1258
—
—
0.2
Watts
3359
3941
4583
5290
6062
6902
7813
8795
9851
—
—
Rpm
1072
1114
1156
1199
1242
1286
1330
—
—
—
—
1.2
Watts
4739
5371
6060
6807
7614
8482
9415
—
—
—
—
Bhp
3.86
4.53
5.27
6.08
6.97
7.94
8.99
10.12
11.33
—
—
Bhp
5.45
6.18
6.97
7.83
8.76
9.76
10.83
—
—
—
—
Rpm
898
944
991
1039
1088
1137
1186
1236
—
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
3621
4.16
947
3908
4.49
992
4191
4203
4.83
992
4499
5.17 1036
4795
4844
5.57 1037
5146
5.92 1080
5456
5549
6.38 1082
5855
6.73 1124
6176
6320
7.27 1129
6628
7.62 1169
6956
7159
8.23 1175
7467
8.59 1214
7801
8068
9.28 1223
8374
9.63 1260
8713
9049
10.41 1271
9354
10.76 1306
9695
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
4.82
5.52
6.28
7.10
8.00
8.97
10.02
11.15
—
—
—
Rpm
1033
1076
1119
1163
1207
1251
1296
—
—
—
—
1.0
Watts
4467
5086
5761
6494
7287
8143
9064
—
—
—
—
Bhp
5.14
5.85
6.63
7.47
8.38
9.37
10.42
—
—
—
—
Rpm
1109
1150
1191
1233
1276
1319
1363
—
—
—
—
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
Watts
Bhp
Rpm Watts
Bhp
Rpm Watts
5011
5.76 1145
5285
6.08 1181
5564
5654
6.50 1184
5936
6.83 1218
6222
6355
7.31 1225
6648
7.65 1257
6941
7115
8.18 1266
7419
8.53 1298
7722
7934
9.13 1308
8252
9.49 1339
8566
8817
10.14 1351
9147
10.52 1381
9472
9762
11.23
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bhp
6.40
7.16
7.98
8.88
9.85
10.89
—
—
—
—
—
Rpm
1216
1252
1289
1329
1369
—
—
—
—
—
—
2.0
Watts
5848
6511
7236
8026
8879
—
—
—
—
—
—
Bhp
6.73
7.49
8.32
9.23
10.21
—
—
—
—
—
—
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
2.
3.
4.
*For standard motor with standard drive, the drive range is 799 to
965 rpm. For standard motor with alternate drive, the drive range is
717 to 882 rpm. For alternate motor with standard drive, the drive
range is 939 to 1152 rpm. For alternate motor with optional drive,
the drive range is 1152 to 1366 rpm. All other rpms require a fieldsupplied drive.
NOTES:
1. Maximum continuous Bhp for the standard motor is 8.63. Maximum continuous Bhp for the alternate motor is 11.50. The maximum continuous watts for the standard motor is 6438. The
maximum continuous watts for the alternate motor is 8579. Do
5.
6.
not adjust motor rpm such that motor maximum Bhp and/or watts
is exceeded at the maximum operating cfm.
Static pressure losses must be added to external static pressure
before entering fan performance table.
Interpolation is permissible. Do not extrapolate.
Fan performance is based on economizer, filters, unit casing, and
wet coil losses.
Extensive motor and electrical testing on these units ensures that
the full range of the motor can be utilized with confidence. Using
your fan motors up to the wattage ratings shown will not result
in nuisance tripping or premature motor failure. Unit warranty
will not be affected. See Table 25 on page 37 for additional
information.
Use of a field-supplied motor may affect wire sizing. Contact your
Carrier representative for details.
Table 23 — Power Exhaust Fan Performance
AIRFLOW
3250
3350
3450
3550
3650
3750
3850
3950
4050
4250
4450
4650
4850
5050
5250
5450
5650
5850
ESP
0.32
0.23
0.17
0.13
0.09
—
—
—
—
—
—
—
—
—
—
—
—
—
208 V
Bhp
1.41
1.44
1.46
1.47
1.49
—
—
—
—
—
—
—
—
—
—
—
—
—
LOW SPEED
230,460,575 V
Watts ESP Bhp Watts
1580 0.70 1.49 1670
1610 0.63 1.52 1700
1635 0.59 1.55 1730
1645 0.56 1.56 1745
1665 0.53 1.58 1765
—
0.51 1.60 1790
—
0.48 1.62 1810
—
0.45 1.64 1835
—
0.40 1.67 1865
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ESP
—
0.60
0.55
0.49
0.43
0.39
0.33
0.27
0.22
0.17
0.00
—
—
—
—
—
—
—
MEDIUM SPEED
208 V
230,460,575 V
Bhp Watts ESP Bhp Watts
—
—
—
—
—
1.51 1690 0.82 1.62 1810
1.54 1720 0.78 1.64 1840
1.56 1750 0.73 1.67 1870
1.59 1780 0.68 1.70 1900
1.62 1815 0.64 1.72 1930
1.64 1835 0.59 1.74 1950
1.66 1860 0.54 1.76 1975
1.68 1885 0.49 1.79 2000
1.74 1945 0.40 1.84 2060
1.79 2005 0.30 1.89 2115
—
—
0.22 1.94 2170
—
—
0.16 1.98 2215
—
—
0.12 2.02 2260
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
LEGEND
ESP — External Static Pressure
36
ESP
—
—
—
—
—
—
0.60
0.56
0.51
0.41
0.31
0.20
0.11
0.04
—
—
—
—
208 V
Bhp
—
—
—
—
—
—
1.85
1.87
1.89
1.92
1.97
2.04
2.09
2.13
—
—
—
—
HIGH SPEED
230,460,575 V
Watts ESP Bhp Watts
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2070 0.73 1.99 2230
2095 0.69 2.01 2255
2120 0.65 2.04 2280
2145 0.56 2.06 2310
2205 0.47 2.12 2370
2280 0.37 2.19 2450
2335 0.30 2.24 2505
2385 0.23 2.28 2555
—
0.17 2.33 2610
—
0.12 2.38 2665
—
0.07 2.40 2690
—
0.04 2.42 2710
Table 24 — Operation Air Quantity Limits
48HG
COOLING
Minimum CFM
Maximum CFM
014
3,750
6,250
016
4,500
7,500
020
5,400
9,000
024
5,500
10,000
028
7,500
11,500
GAS HEAT
High Heat (6 cell) HGF
Low Heat (5 cell) HGD
High Heat (8 cell) HGF
Low Heat (5 cell) HGD
High Heat (8 cell) HGF
Low Heat (5 cell) HGD
High Heat (8 cell) HGF
Low Heat (5 cell) HGD
High Heat (8 cell) HDF
Low Heat (5 cell) HGD
HEATING
Minimum CFM
4,086
4,218
5,522
4,218
5,522
4,218
5,522
4,218
5,522
4,218
Table 25 — Evaporator Fan Motor Specifications
UNIT
48HG
OPTION
STD MOTOR
014
ALT MOTOR
STD MOTOR
016
ALT MOTOR
STD MOTOR
020
ALT MOTOR
STD MOTOR
024
ALT MOTOR
STD MOTOR
028
ALT MOTOR
MOTOR P/N
HD60FK651
HD60FK651
HD60FK651
HD58DL575
HD60FK653
HD60FK653
HD60FK653
HD60FK575
HD60FK651
HD60FK651
HD60FK651
HD58DL575
HD60FK653
HD60FK653
HD60FK653
HD60FK575
HD60FK653
HD60FK653
HD60FK653
HD60FK575
HD62FK652
HD62FK652
HD62FK652
HD62FK576
HD60FK653
HD60FK653
HD60FK653
HD60FK575
HD62FK652
HD62FK652
HD62FK652
HD62FK576
HD62FK652
HD62FK652
HD62FK652
HD62FK576
HD64FK651
HD64FK651
HD64FK651
HD64FK575
NOMINAL
HP
3.7
3.7
3.7
3.0
5.0
5.0
5.0
5.0
3.7
3.7
3.7
3.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
7.5
7.5
7.5
7.5
5.0
5.0
5.0
5.0
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
10.0
10.0
10.0
10.0
VOLTAGE
208
230
460
575
208
230
460
575
208
230
460
575
208
230
460
575
208
230
460
575
208
230
460
575
208
230
460
575
208
230
460
575
208
230
460
575
208
230
460
575
LEGEND
BkW — Brake kilowatts
37
MAX
WATTS
3698
3698
3698
3149
4900
4900
4900
4900
3698
3698
3698
3149
4900
4900
4900
4900
4900
4900
4900
4900
7267
7267
7267
7267
4900
4900
4900
4900
7267
7267
7267
7267
7267
7267
7267
7267
9582
9582
9582
9582
EFFICIENCY
%
85.8
85.8
85.8
81.7
87.5
87.5
87.5
87.5
85.8
85.8
85.8
81.7
87.5
87.5
87.5
87.5
87.5
87.5
87.5
87.5
88.5
88.5
88.5
88.5
87.5
87.5
87.5
87.5
88.5
88.5
88.5
88.5
88.5
88.5
88.5
88.5
89.5
89.5
89.5
89.5
MAX
BHP
4.26
4.26
4.26
3.45
5.75
5.75
5.75
5.75
4.26
4.26
4.26
3.45
5.75
5.75
5.75
5.75
5.75
5.75
5.75
5.75
8.63
8.63
8.63
8.63
5.75
5.75
5.75
5.75
8.63
8.63
8.63
8.63
8.63
8.63
8.63
8.63
11.50
11.50
11.50
11.50
MAX
BkW
3.17
3.17
3.17
2.57
4.29
4.29
4.29
4.29
3.17
3.17
3.17
2.57
4.29
4.29
4.29
4.29
4.29
4.29
4.29
4.29
6.43
6.43
6.43
6.43
4.29
4.29
4.29
4.29
6.43
6.43
6.43
6.43
6.43
6.43
6.43
6.43
8.58
8.58
8.58
8.58
MAX
AMPS
10.6
9.6
4.8
3.9
16.7
15.2
7.6
6.1
10.6
9.6
4.8
3.9
16.7
15.2
7.6
6.1
16.7
15.2
7.6
6.1
24.2
22.0
11.0
9.0
16.7
15.2
7.6
6.1
24.2
22.0
11.0
9.0
24.2
22.0
11.0
9.0
30.8
28.0
14.0
11.0
Table 26 — Evaporator Fan Motor Specifications
MOTOR
HP
3.0
3.7
5.0
7.5
10.0
MOTOR
EFFICIENCY (%)
81.7
85.8
87.5
88.5
89.5
Table 27 — Fan RPM at Motor Pulley Settings
UNIT 48HG
014
(208/230
and 460 v)
014
(575 v)
016
(208/230
and 460 v)
016
(575 v)
020, 024
028
Std. Motor/Std. Drive
Std. Motor/Alt. Drive
Alt. Motor/Std. Drive
Alt. Motor/Opt. Drive
Std. Motor/Std. Drive
Std. Motor/Alt. Drive
Alt. Motor/Std. Drive
Alt. Motor/Opt. Drive
Std. Motor/Std. Drive
Std. Motor/Alt. Drive
Alt. Motor/Std. Drive
Alt. Motor/Opt. Drive
Std. Motor/Std. Drive
Std. Motor/Alt. Drive
Alt. Motor/Std. Drive
Alt. Motor/Opt. Drive
Std. Motor/Std. Drive
Std. Motor/Alt. Drive
Alt. Motor/Std. Drive
Alt. Motor/Opt. Drive
Std. Motor/Std. Drive
Std. Motor/Alt. Drive
Alt. Motor/Std. Drive
Alt. Motor/Opt. Drive
0
485
618
778
1000
472
609
778
1000
618
485
778
1000
609
472
778
1000
658
794
949
1126
799
717
939
1152
0.5
496
632
798
1019
484
623
798
1019
632
496
798
1019
623
484
798
1019
671
809
965
1143
813
731
957
1170
1
506
647
819
1038
497
637
819
1038
647
506
819
1038
637
497
819
1038
683
824
982
1160
827
745
975
1188
1.5
517
661
839
1057
509
651
839
1057
661
517
839
1057
651
509
839
1057
696
839
998
1177
841
758
992
1206
Base Unit Operation
2
528
675
859
1076
521
665
859
1076
675
528
859
1076
665
521
859
1076
708
854
1014
1193
854
772
1010
1223
2.5
538
689
879
1095
533
679
879
1095
689
538
879
1095
679
533
879
1095
721
869
1031
1210
868
786
1028
1241
3
549
704
900
1114
546
694
900
1114
704
549
900
1114
694
546
900
1114
733
884
1047
1227
882
800
1046
1259
3.5
560
718
920
1132
558
708
920
1132
718
560
920
1132
708
558
920
1132
746
899
1063
1244
896
813
1063
1277
4
570
732
940
1151
570
722
940
1151
732
570
940
1151
722
570
940
1151
758
914
1080
1261
910
827
1081
1295
4.5
581
746
960
1170
582
736
960
1170
746
581
960
1170
736
582
960
1170
771
929
1096
1278
924
841
1099
1313
5
592
761
981
1189
595
750
981
1189
761
592
981
1189
750
595
981
1189
783
944
1112
1294
937
855
1117
1330
5.5
602
775
1001
1208
607
764
1001
1208
775
602
1001
1208
764
607
1001
1208
796
959
1129
1311
951
868
1134
1348
6
613
789
1021
1227
619
778
1021
1227
789
613
1021
1227
778
619
1021
1227
808
974
1145
1328
965
882
1152
1366
not be interrupted to the burners and heating will continue.
Once modified, the fan on delay will not change back to
45 seconds unless power is reset to the control.
When additional heat is required, W2 closes and initiates
power to the second stage of the main gas valve. When the
thermostat is satisfied, W1 and W2 open and the gas valve
closes, interrupting the flow of gas to the main burners. If the
call for W1 lasted less than 1 minute, the heating cycle will not
terminate until 1 minute after W1 became active. If the unit is
controlled through a room thermostat set for fan auto., the
indoor-fan motor will continue to operate for an additional
45 seconds then stop (and the outdoor-air dampers will close).
If the overtemperature limit opens after the indoor motor is
stopped within 10 minutes of W1 becoming inactive, on the
next cycle the time will be extended by 15 seconds. The maximum delay is 3 minutes. Once modified, the fan off delay will
not change back to 45 seconds unless power is reset to the
control.
A LED indicator is provided on the IGC to monitor operation. The IGC is located by removing the heat section side panel. See Fig. 4. During normal operation, the LED is continuously on. See Table 28 for error codes.
For units with economizers, the outdoor-air damper stays at
the Economizer Minimum Position while the evaporator fan is
operating. The outdoor-air damper is closed when the indoor
fan is not operating.
HEATING
NOTE: The 48HG units have 2 stages of heat.
When the thermostat calls for heating, power is sent to W
on the IGC (integrated gas unit controller) board. An LED
(light-emitting diode) on the IGC board will be on during normal operation. A check is made to ensure that the rollout
switch and limit switch are closed and the induced-draft motor
is running. The induced-draft motor is then energized, and
when speed is proven with the hall effect sensor on the motor,
the ignition activation period begins. The burners will ignite
within 5 seconds.
If the burners do not light, there is a 22-second delay before
another 5-second attempt. If the burners still do not light, this
sequence is repeated for 15 minutes. After the 15 minutes have
elapsed, if the burners still have not lighted, heating is locked
out. To reset the control, break 24-v power to the thermostat.
When ignition occurs the IGC board will continue to monitor the condition of the rollout and limit switches, the hall effect
sensor, as well as the flame sensor. If the unit is controlled
through a room thermostat set for fan auto., 45 seconds after ignition occurs, the indoor-fan motor will be energized (and the
outdoor-air dampers will open to their minimum position). If
for some reason the overtemperature limit opens prior to
the start of the indoor fan blower, on the next attempt, the
45-second delay will be shortened to 5 seconds less than the
time from initiation of heat to when the limit tripped. Gas will
38
Table 28 — IGC LED Indications
ERROR CODE
Normal Operation
Hardware Failure
Fan On/Off Delay Modified
Limit Switch Fault
Flame Sense Fault
Five Consecutive Limit
Switch Faults
Ignition Lockout Fault
Inducer Switch Fault
Rollout Switch Fault
Internal Control Fault
Software Lockout
details). When the building is occupied, the occupied set points
are active. When the building in unoccupied, the unoccupied
set points are active. Because Space Sensor mode is an "Auto"
mode, the control will switch between cooling and heating to
maintain temperature. However, to minimize unnecessary cool
to heat and heat to cool changes, there is a 10-minute delay after the last stage turns off before the control will switch modes.
To maintain temperature while cooling, the unit will turn on
compressors as needed when the economizer is either unavailable or not providing enough cooling. The minimum on-time
for each compressor is 3 minutes and the minimum off-time is
5 minutes.
Because the unit contains 3 compressors, each with its own
circuit, there are 3 stages of cooling (the economizer is not considered a stage of cooling even though it can provide cooling in
certain situations). In general, the minimum time between increasing stages (from 1 to 2 and from 2 to 3) is 7.5 minutes,
however, the minimum time between stages can be further reduced in certain situations (see Controls and Troubleshooting
Guide). The minimum time between decreasing stages (3 to 1
and 2 to 0) is 5 minutes.
Cooling Using Thermostat Control — Thermostat cooling
begins when the Y1 input is energized. If the economizer is
available for cooling, the economizer will try to maintain the
supply-air temperature (SAT) at either the Low Cool Supply
Air Set Point (LCSASP) for a Y1 call or the High Cool Supply
Air Set Point (HCSASP) for a Y2 call. If the economizer operates at 100% for 5 minutes or the economizer cooling is not
available, the unit will begin to energize compressors. While
the compressors are operating, the economizer will try to maintain its position at 100%. However, if low suction pressures are
experienced, the economizer will begin to close in order to protect the compressors from damage.
Three different compressor-staging schemes are available
with ComfortLink™ control. They are called Adaptive, 1-stage
Y1 and 2-stage Y1. In Adaptive mode, once compressor staging begins (see above), at least one compressor will run as long
as there is a Y1 call. On a three-circuit machine with only a Y1
call, the second circuit will cycle depending upon the trend in
the supply-air temperature (SAT). If there is a Y1 call, compressors will stage up to the maximum number available.
The 1-stage Y1 and 2-stage Y1 modes are identical if there
are only two circuits. In both cases, the stages follow the thermostat calls directly. The two modes differ when three circuits
are available as they are on the 016, 020 and 024 units. In
1-stage Y1 mode, a Y1 call will cause the first compressor
stage to operate immediately (there always is a 5-second delay
between compressor starts) while in 2-stage Y1 mode, a Y1
call will cause the first two stages to operate immediately. For
either mode, all stages will operate immediately if there a Y2
call.
If fan request G is energized, but Y1 is not energized, the indoor fan will operate and the economizer position will be maintained at MIN.P.
LED INDICATION
On
Off
1 Flash
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
7 Flashes
8 Flashes
9 Flashes
LEGEND
IGC — Integrated Gas Unit Controller
LED — Light-Emitting Diode
NOTES:
1. There is a 3-second pause between error code displays.
2. If more than one error code exists, all applicable error codes will
be displayed in numerical sequence.
3. Error codes on the IGC will be lost if power to the unit is
interrupted.
COOLING
Economizer Control — If the economizer is available for
cooling, the unit will always try to meet demand using the
economizer before turning on a compressor. The economizer is
available for cooling when
• the outdoor temperature is below the Economizer Lockout Temp (EC.LO)
• the outdoor enthalpy is low.
If the economizer is not available for cooling, the economizer will try to maintain indoor quality instead of cooling. Indoor
air quality is maintained by setting the economizer position to
the Economizer Min Position (MIN.P).
If the economizer is available for cooling and yet it is unable
to meet demand, the unit will continue to modulate the economizer while cycling the compressors to increase total cooling
capacity.
If the indoor fan is not operating, the economizer will be
closed.
Cooling Using Space Sensor (T55 or T56) Control — To
operate the unit in Space Sensor mode, Unit Control Type must
be set to Space Sensor (3) and a wire must be added between R
and W1 on TB4 (see controls schematic). While in this mode,
the unit tries to maintain the Space Temperature (SPT) at one of
4 different set points: the Occupied Cool Set Point — OCSP,
the Unoccupied Cool Set Point — UCSP, the Occupied Heat
Set Point — OHSP or the Unoccupied Heat Set Point —
UHSP. The building’s occupancy is affected by a number of
different factors (see Controls and Troubleshooting Guide for
39
ComfortLink™ Display Usage — The display module provides the user interface to the ComfortLink control system. See Fig. 23. The display has up and down arrow keys, an
ESCAPE key, and an ENTER key. These keys are used to
navigate through the different levels of the display structure.
See Table 29. Press the ESCAPE key until the display is
blank to move through the top 11 mode levels indicated by
LEDs on the left side of the display.
ENTER to stop the display at the item value. Press the
ENTER key again so that the item value flashes. Use the arrow keys to change the value or state of an item and press the
ENTER key to accept it. Press the ESCAPE key and the
item, value, or units display will resume. Repeat the process as
required for other items.
Clearing Unit Alarms — The unit alarms can be
cleared through the ComfortLink display. To check the current
alarms, enter into the Alarms menu. The first submenu is the
CURR submenu. The CURR function displays the list of current alarms (maximum of 25). The second submenu item is the
R.CUR (Reset Current Alarms) function. Press ENTER to reset the current alarms. The next submenu item, HIST, displays
the list of cleared alarms (maximum of 20) HIST function can
be cleared with the R.HIS function.
Pressing the ESCAPE and ENTER keys simultaneously
will scroll a clear language text description across the display
indicating the full meaning of each display acronym. Pressing
the ESCAPE and ENTER keys when the display is blank
(Mode LED level) will return the display to its default menu of
rotating display items. In addition, the password will be disabled requiring that it be entered again before changes can be
made to password protected items.
When a specific item is located, the display will flash showing the operator, the item, followed by the item value and then
followed by the item units (if any). Press the ENTER key to
stop the display at the item value. Items in the Configuration
and Service Test modes are password protected. The display
will flash PASS and WORD when required. Use the ENTER
and arrow keys to enter the 4 digits of the password. The
default password is 1111.
MODE
Run Status
Service Test
Temperature
Pressures
Setpoints
Alarm Status
Inputs
Outputs
ESCAPE
Configuration
Time Clock
ENTER
Operating Modes
Alarms
Changing item values or testing outputs is accomplished in
the same manner. Locate and display the desired item. Press
Fig. 23 — Scrolling ComfortLink Display
Table 29 — ComfortLink Display Menu Structure
RUN
STATUS
SERVICE
TEST
Manual
Auto Display
Mode On/Off
(VIEW)
(TEST)
SET
TEMPERATURES PRESSURES POINTS
OUTPUTS
CONFIGURATION
TIME
CLOCK
OPERATING ALARMS
MODES
Unit
Temperatures
(UNIT)
Ckt A
Pressures
(CIR.A)
Cooling
(COOL)
Thermostat
Inputs
(STAT)
Fans
(FANS)
Unit
(UNIT)
Time
(TIME)
Unit
(SYS)
Current
Alarms
(CURR)
Heating
(HEAT)
Switch
Inputs
(SWIN)
Compressor
(CMPR)
Cool
(COOL)
Date
(DATE)
Mode
(HVAC)
Reset
Current
Alarms
(R.CUR)
Compressor
Current
Sense
(CSIN)
Heat
(HEAT)
Heat
(HEAT)
Schedule
No.
(SCHN)
Alarm
History
(HIST)
Economizer
(ECON)
Economizer
(ECON)
Local
Schedule
(SCHL)
Reset
Alarm
History
(R.HIS)
Miscellaneous
(MISC)
Indoor
Air Quality
(IAQ)
Software
Version
(VERS)
Unit Output
Test
(OUTS)
Ckt A
Temperatures
(CIR.A)
Ckt B
Pressures
(CIR.B)
Run Hours
(HRS)
Compressors
Test
(COMP)
Ckt B
Temperatures
(CIR.B)
Ckt C
Pressures
(CIR.C)
Component
Cycles
(CYCS)
INPUTS
Ckt C
Temperatures
(CIR.C)
Compressor
TimeGuard
(TMGD)
Carrier Comfort
Network
(CCN)
Display
(DISP)
40
SERVICE
Before performing service or maintenance operations on
unit, turn off main power switch to unit. Electrical shock
could cause personal injury.
Cleaning — Inspect unit interior at beginning of each heating and cooling season and as operating conditions require. Remove unit top panel and/or side panels for access to unit interior.
EVAPORATOR COIL — Clean as required with commercial
coil cleaner.
CONDENSER COIL — Clean condenser coil annually and
as required by location and outdoor-air conditions. Inspect coil
monthly; clean as required.
CONDENSATE DRAIN — Check and clean each year at the
start of the cooling season. In winter, keep drains and traps dry.
An access panel is located above the condensate connection to
allow easy clean out of the condensate pan. The first time the
panel is removed, the insulation behind the access panel will
need to be cut away. Carefully cut the insulation with a knife or
blade on three sides so the insulation can be folded out of the
way during cleaning. Be careful not to damage components behind the insulation while cutting. Once cleaning is completed,
fold the insulation back into place and secure the access panel
in the original position.
FILTERS — Clean or replace at start of each heating and cooling season, or more often if operating conditions require. Refer
to Table 1 for type and size.
OUTDOOR-AIR INLET SCREENS — Clean screens with
steam or hot water and a mild detergent. Do not use throwaway
filters in place of screens. See Table 1 for quantity and size.
MAIN BURNER — At the beginning of each heating season,
inspect for deterioration or blockage due to corrosion or other
causes. Observe the main burner flames. Refer to Main Burners section on page 43.
FLUE GAS PASSAGEWAYS — The flue collector box and
heat exchanger cells may be inspected by removing heat section access panel (Fig. 4), flue box cover, and main burner assembly (Fig. 24). Refer to Main Burners section on page 43 for
burner removal sequence. If cleaning is required, clean tubes
with a wire brush.
Use caution with ceramic heat exchanger baffles. When installing retaining clip, be sure the center leg of the clip extends
inward toward baffle. See Fig. 25.
COMBUSTION-AIR BLOWER — Clean periodically to assure proper airflow and heating efficiency. Inspect blower
wheel every fall and periodically during heating season. For the
first heating season, inspect blower wheel bi-monthly to determine proper cleaning frequency.
To inspect blower wheel, remove heat section panel. Using
an inspection mirror and flashlight, look into the flue exhaust
duct to inspect the wheel. If cleaning is required, remove motor
and wheel assembly by removing the screws holding the flue
box cover to the flue box. See Fig. 24. Remove the screws
holding the inducer housing to the inlet plate. The wheel can
then be removed from the motor shaft and cleaned with a detergent or solvent. Replace the wheel onto the motor shaft in the
correct position and reassemble the flue cover onto the flue
box.
COMBUSTION
FAN HOUSING
HEAT
EXCHANGER
SECTION
INDUCED
DRAFT
MOTOR
MAIN GAS
VALVE
IGC BOARD
(HIDDEN)
MAIN BURNER
SECTION
IGC — Integrated Gas
Controller
Fig. 24 — Typical Gas Heating Section
CERAMIC
BAFFLE
CLIP
NOTE: One baffle and clip will be in each upper tube of the heat
exchanger.
Fig. 25 — Removing Heat Exchanger Ceramic
Baffles and Clips
with 3GS oil, and 3GS oil may be used if the addition of oil is
required. See compressor nameplate for original oil charge. Oil
recharge amount is shown in Table 1. When a compressor is
exchanged in the field it is possible that a major portion of the
oil from the replaced compressor may still be in the system.
While this will not affect the reliability of the replacement
compressor, the extra oil will add rotor drag and increase power usage. To remove this excess oil, an access valve may be
added to the lower portion of the suction line at the inlet of the
compressor. The compressor should then be run for 10 minutes, shut down and the access valve opened until no oil flows.
This should be repeated twice to make sure the proper oil level
has been achieved.
FAN SHAFT BEARINGS — Lubricate bearings at least every 6 months with suitable bearing grease. Typical lubricants
are given below:
MANUFACTURER
Texaco
Mobil
Sunoco
Texaco
LUBRICANT
Regal AFB-2*
Mobilplex EP No. 1
Prestige 42
Multifak 2
*Preferred lubricant because it contains rust and oxidation inhibitors.
CONDENSER AND EVAPORATOR-FAN MOTOR
BEARINGS — The condenser- and evaporator-fan motors
have permanently-sealed bearings, so no field lubrication is
necessary.
Lubrication
COMPRESSORS — Each compressor is charged with the
correct amount of oil at the factory. Conventional white oil
(Zerol 150T or Sontex SA32) is used. White oil is compatible
41
Evaporator Fan Service and Replacement — The
48HG units feature a slide-out fan deck for easy servicing of
the indoor-fan motor, pulleys, belt, and bearings. To service
components in this section, perform the following procedure:
1. Open the fan section access panel.
2. Remove three no. 10 screws at front of slide-out fan deck.
Save screws. See Fig. 26.
3. Disconnect the electrical plugs connected to the slide-out
fan deck (fan plug, supply air thermistor, and limit
switch). Wires may be damaged if not disconnected.
4. Fan deck can now be slid out to access serviceable
components.
FAN
PULLEY
MOTOR
PULLEY
(HIDDEN)
MOTOR
MOUNTING
BASE
SLIDE-OUT
FAN DECK
Fig. 26 — Evaporator-Fan Motor Adjustment
DO NOT SLIDE FAN DECK OUT PAST CLOSEST
FAN SIDE PLATE. If further access is required, the fan
deck must be supported. Make sure plugs and wiring are
not pinched between fan housing and unit center post.
Damage to unit may result.
5. To replace fan deck to operating position, slide fan deck
back into the unit. Secure with the three no. 10 screws
removed in Step 2.
6. Re-attach electrical plugs.
7. Close fan section access door.
Evaporator Fan Performance Adjustment
(Fig. 26 and 27) — Fan motor pulleys are factory set
for speed shown in Table 1.
To change fan speeds:
1. Shut off unit power supply.
2. Loosen nuts on the 4 carriage bolts in the mounting base.
Using adjusting bolts and plate, slide motor and remove
belt.
3. Loosen movable-pulley flange setscrew (see Fig. 27).
4. Screw movable flange toward fixed flange to increase
speed and away from fixed flange to decrease speed. Increasing fan speed increases load on motor. Do not exceed maximum speed specified in Table 1.
See Table 23 for air quantity limits.
5. Set movable flange at nearest keyway of pulley hub and
tighten setscrew. (See Table 1 for speed change for each
full turn of pulley flange.)
6. Replace and tighten belts (see Belt Tension Adjustment
section below).
To align fan and motor pulleys:
1. Loosen fan pulley setscrews.
2. Slide fan pulley along fan shaft.
3. Make angular alignment by loosening motor from
mounting plate.
Fig. 27 — Evaporator-Fan Alignment and
Adjustment
Fig. 28 — Condenser-Fan Adjustment
Belt Tension Adjustment — To adjust belt tension:
Condenser-Fan Adjustment (Fig. 28)
1. Slide out fan deck to service position as shown in Evaporator Fan Service and Replacement section above.
2. Loosen fan motor bolts.
3. Move motor mounting plate to adjust to proper belt tension. Motor adjuster bolts may be used to tighten belts.
See Fig. 26.
4. Check for proper belt alignment. Adjust if necessary.
5. Tighten motor mounting plate bolts to lock motor in
proper position.
6. Return fan deck back into operating position.
1. Shut off unit power supply.
2. Remove condenser-fan assembly (grille, motor, motor
cover, and fan) and loosen fan hub setscrews.
3. Adjust fan height as shown in Fig. 28.
4. Tighten setscrews and replace condenser-fan assembly.
Economizer Checkout Procedure — For units
equipped with economizers, the unit software provides a test
to determine if the economizer is working properly. The following steps specify how to test the economizer using the
ComfortLink™ display). Refer to ComfortLink Display Usage
section on page 40 for more information.
42
1. Enter the Service Test main menu on the display.
2. Enter the TEST submenu and turn ON test mode. If the
password has not already been entered, the password
must be entered in order to turn ON Service Test. The default password is 1111.
3. Return to the main level of Service Test.
4. Enter the OUTS submenu and turn on the IDF (indoor
fan).
5. Return to the OUTS submenu and enter an initial value
for ECON. This will drive the economizer damper to the
specified position. Continue to adjust the ECON value to
make sure the economizer opens and closes.
6. Return to the TEST submenu and turn OFF test mode.
This will cause the economizer to close and the indoor
fan to turn off. Verify that the economizer damper moves
as directed.
To adjust regulator:
1. Set unit at setting for no call for heat.
2. Turn main gas valve to OFF position.
3. Remove 1/8-in. pipe plug from manifold or gas valve
pressure tap connection. Install a suitable pressuremeasuring device.
4. Set main gas valve to ON position.
5. Set thermostat at setting to call for heat.
6. Remove screw cap covering regulator adjustment screw
(See Fig. 34).
7. Turn adjustment screw clockwise to increase pressure or
counterclockwise to decrease pressure.
8. Once desired pressure is established, set unit setting
for no call for heat, turn off main gas valve, remove
pressure-measuring device, and replace 1/8-in. pipe
plug and screw cap.
Verify Outdoor Air Temperature (OAT) Sensor
and Supply Air Temperature (SAT) Sensor Performance — Verify that the OAT and SAT sensors are
Main Burners — For all applications, main burners are
factory set and should require no adjustment.
MAIN BURNER REMOVAL
1. Shut off (field-supplied) manual main gas valve.
2. Shut off power to unit.
3. Remove gas section access panel.
4. Disconnect gas piping from gas valve inlet.
5. Remove wires from gas valve.
6. Remove wires from rollout switch.
7. Remove sensor wire and ignitor cable from IGC board.
8. Remove 2 screws securing manifold bracket to basepan.
9. Remove 2 screws that hold the burner assembly to vestibule plate.
10. Lift burner/manifold assembly out of unit.
CLEANING AND ADJUSTMENT
1. Remove burner rack from unit as described in Main
Burner Removal section above.
2. Inspect burners, and if dirty, remove burners from rack.
3. Using a soft brush, clean burners and crossover port as
required.
4. Adjust spark gap. See Fig. 35.
5. Reinstall burners on rack.
6. Reinstall burner rack as described above.
reading correctly. The OAT and SAT values can be accessed
through the ComfortLink™ display in the Temperatures menu
and UNIT submenu.
Power Failure — Dampers have a spring return. In event
of power failure, dampers will return to fully closed position
until power is restored. Do not manually operate damper
motor.
Refrigerant Charge — Amount of refrigerant charge is
listed on unit nameplate and in Table 1. Refer to Carrier GTAC
II; Module 5; Charging, Recovery, Recycling, and Reclamation
section for charging methods and procedures. Unit panels must
be in place when unit is operating during charging procedure.
NOTE: Do not use recycled refrigerant as it may contain
contaminants.
NO CHARGE — Use standard evacuating techniques. After
evacuating system, weigh in the specified amount of refrigerant (refer to Table 1).
LOW CHARGE COOLING — Using cooling charging chart
(see Fig. 29-33), add or remove refrigerant until conditions of
the chart are met. An accurate pressure gage and temperaturesensing device is required. Charging is accomplished by ensuring the proper amount of liquid subcooling. Measure liquid line
pressure at the liquid line service valve using pressure gage.
Connect temperature sensing device to the liquid line near the
liquid line service valve and insulate it so that outdoor ambient
temperature does not affect reading.
TO USE THE COOLING CHARGING CHART — Use the
above temperature and pressure readings, and find the intersection point on the cooling charging chart. If intersection point on
chart is above line, add refrigerant. If intersection point on
chart is below line, carefully recover some of the charge. Recheck suction pressure as charge is adjusted.
NOTE: Indoor-air CFM must be within normal operating
range of unit. All outdoor fans must be operating.
The TXV (thermostatic expansion valve) is set to maintain
between 10 and 15 degrees of superheat at the compressors.
The valves are factory set and should not require re-adjustment.
Filter Drier — Replace whenever refrigerant system is exposed to atmosphere.
Protective Devices
COMPRESSOR PROTECTION
Overcurrent — Each compressor has internal line break motor
protection.
Overtemperature — Each compressor has an internal protector
to protect it against excessively high discharge gas temperatures.
High-Pressure Switch — If the high-pressure switch trips, the
compressor will shut down and the current sensor will not detect
current. See the Current Sensor section below for more
information.
Current Sensor (CS) — The purpose of the CS is to detect
losses in compressor power. After detecting a loss in compressor power, unit control locks out the compressor for 15 minutes. After 15 minutes, the alarm will automatically reset. If
this alarm occurs 3 times consecutively, the compressor will remain locked out until an alarm reset is initiated via CCN or
manually via the ComfortLink display (see Clearing Unit
Alarms section on page 40 for more details).
Gas Valve Adjustment
NATURAL GAS — The gas valve opens and closes in response to the thermostat or limit control.
When power is supplied to valve terminals W2 (High Fire)
and C1, the main valve opens to its preset position.
The regular factory setting is stamped on the valve body
(2.95 in. wg).
43
Fig. 29 — Cooling Charging Chart — 48HG014 Units
Fig. 32 — Cooling Charging Chart — 48HG024 Units
Fig. 30 — Cooling Charging Chart — 48HG016 Units
Fig. 33 — Cooling Charging Chart — 48HG028 Units
REGULATOR
ADJUSTMENT SCREW
(REMOVE COVER)
2 LEADS, #18 WIRE 1/32 INSULATION,
600V. MAX., 105°C
OUTLET PRESSURE
TAP (PLUGGED)
1/8-27 N.P.T. THDS.
ON
C1
OFF
C2
PILOT
ADJ.
INLET PRESSURE TAP
(PLUGGED)
1/8 - 27 N.P.T. THDS.
W-2
44
PILOT CONNECTION
FOR 1/4” O.D. TUBING
(PLUGGED)
RECEPTACLE TERMINAL
Fig. 34 — Gas Valve
Fig. 31 — Cooling Charging Chart — 48HG020 Units
RECEPTACLE AND
TAB COMBINATION
TERMINAL
D-1 D-2
W-1
Relief Devices — All units have relief devices to protect
EVAPORATOR FAN MOTOR PROTECTION — A manual reset, calibrated trip, magnetic circuit breaker protects
against overcurrent. Do not bypass connections or increase the
size of the breaker to correct trouble. Determine the cause and
correct it before resetting the breaker.
CONDENSER-FAN MOTOR PROTECTION — Each
condenser-fan motor is internally protected against
overtemperature.
SATURATED SUCTION PRESSURE (SSP) — If the SSP
for a particular circuit is reading below the alarm set point for
an extended period of time, that circuit will be shut down. After
15 minutes, the alarm will automatically reset. If this alarm occurs 3 times consecutively, the circuit will remain locked out
until an alarm reset is initiated via CCN or manually via the
ComfortLink™ display (see Clearing Unit Alarms section on
page 40 for more details).
against damage from excessive pressures (i.e., fire). These
devices protect the high and low side.
Control Circuit, 24-V — Each control circuit is protected against overcurrent by a 3.2 amp circuit breaker.
Breaker can be reset. If it trips, determine cause of trouble
before resetting.
Replacement Parts — A complete list of replacement
parts may be obtained from any Carrier distributor upon
request.
Diagnostic LEDs — The IGC control board has a LED
for diagnostic purposes. The IGC error codes are shown in
Table 27.
SEE DETAIL “C”
Fig. 35 — Spark Gap Adjustment
45
LEGEND
Fig. 36 — Low Voltage Control Schematic
Fig. 37 — Power Schematic and Fig. 38 — Component Arrangement
_ _ .A
AUX
_ _ .B
_ _ .C
C
CAP
CB
CCN
CCH
COMP
CS
DU
EC
ECB
FIOP
FS
FU
GND
GV
HPS
I
IAQ
IDM
IFC
IFCB
IFM
IGC
LEN
LS
MBB
OAQ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Circuit A
Auxiliary Contact
Circuit B
Circuit C
Compressor, Contactor
Capacitor
Circuit Breaker
Carrier Comfort Network
Crankcase Heater
Compressor
Current Sensor
Dummy Terminal
Enthalpy Control
Economizer Control Board
Factory-Installed Option
Flame Sensor
Fuse
Ground
Gas Valve
High Pressure Switch
Ignitor
Indoor-Air Quality
Induced-Draft Motor
Indoor Fan Contactor
Indoor Fan Circuit Breaker
Indoor Fan Motor
Integrated Gas Controller
Local Equipment Network
Limit Switch
Main Base Board
Outdoor-Air Quality
BM
C
CM
CS
G
IFO
LI
R
—
—
—
—
—
—
—
—
OAT
OFC
OFM
PEC
PEM
PL
QT
RS
SAT
SCT
SSP
TB
TRAN
T-55
T-56
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Outdoor-Air Temperature
Outdoor Fan Contactor
Outdoor Fan Motor
Power Exhaust Contactor
Power Exhaust Motor
Plug
Quadruple Terminal
Rollout Switch
Supply-Air Temperature
Saturated Condensing Temp
Saturated Suction Pressure
Terminal Block
Transformer
Room Temp Sensor
Set Point Adjustment and Room Temp Sensor
Terminal (Marked)
Terminal (Unmarked)
Terminal Block
Splice
Splice (Marked)
Splice (Field Supplied)
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
To Indicate Common Potential Only,
Not To Represent Wiring
THERMOSTAT/IGC MARKINGS
Blower Motor
RT
— Power Supply
Common
SS
— Speed Sensor
Inducer Motor
W
— Thermostat Heat
Centrifugal Switch
W1 — 1st Stage of Heating
Fan
W2 — 2nd Stage of Heating
Indoor Fan On
X
— Alarm Output
Line I
Y1
— 1st Stage of Cooling
Thermostat Power
Y2
— 2nd Stage of Cooling
NOTES:
1. Factory wiring is in accordance with the National Electrical Codes. Any field
modifications or additions must be in compliance with all applicable codes.
2. Use 75° C minimum wire for field power supply. Use copper wires for all units.
3. All circuit breakers “Must Trip Amps” are equal to or less than 156% RLA.
4. Compressor and fan motors are thermally protected. Three-phase motors
protected against primary single phase conditions.
5. Red jumper wire must be added between R and W1 for space temperature
mode and temporarily during service-test mode when the heaters need to
operate.
46
47
Fig. 36 — Low Voltage Control Schematic
Fig. 37 — Power Schematic
48
49
Fig. 38 — Component Arrangement
TROUBLESHOOTING
Refer to Tables 30 and 31 for troubleshooting details.
Table 30 — Cooling Service Analysis
PROBLEM
Compressor and
condenser fan
will not start.
Compressor will not start
but condenser fan runs.
Compressor cycles
(other than normally
satisfying thermostat).
Compressor operates
continuously.
Excessive head pressure.
Head pressure too low.
Excessive suction
pressure.
Suction pressure too low.
CAUSE
Power failure.
Fuse blown or circuit breaker tripped.
Defective thermostat, contactor, transformer,
or control relay.
Insufficient line voltage.
Incorrect or faulty wiring.
Thermostat setting too high.
Faulty wiring or loose connections in compressor circuit.
Compressor motor burned out, seized,
or internal overload open.
Defective overload.
Compressor locked out
One leg of 3-phase power dead.
Refrigerant overcharge or undercharge.
Defective compressor.
Insufficient line voltage.
Blocked condenser.
Defective overload.
Defective thermostat.
Faulty condenser-fan motor.
Restriction in refrigerant system.
Dirty air filter.
Unit undersized for load.
Thermostat set too low.
Low refrigerant charge.
Air in system.
Condenser coil dirty or restricted.
Dirty air filter.
Dirty condenser coil.
Refrigerant overcharged.
Faulty TXV.
Air in system.
Condenser air restricted or air short-cycling.
Restriction in liquid tube.
Low refrigerant charge.
High heat load.
Faulty TXV.
Refrigerant overcharged.
Dirty air filter.
Low refrigerant charge.
Metering device or low side restricted.
Faulty TXV.
Insufficient evaporator airflow.
Temperature too low in conditioned area.
Field-installed filter drier restricted.
LEGEND
TXV — Thermostatic Expansion Valve
50
REMEDY
Call power company.
Replace fuse or reset circuit breaker.
Replace component.
Determine cause and correct.
Check wiring diagram and rewire correctly.
Lower thermostat setting below room temperature.
Check wiring and repair or replace.
Determine cause. Replace compressor.
Determine cause and replace.
Determine cause for safety trip and reset lockout.
Replace fuse or reset circuit breaker.
Determine cause.
Recover refrigerant, evacuate system, and recharge
to nameplate.
Replace and determine cause.
Determine cause and correct.
Determine cause and correct.
Determine cause and replace.
Replace thermostat.
Replace.
Locate restriction and remove.
Replace filter.
Decrease load or increase unit size.
Reset thermostat.
Locate leak, repair, and recharge.
Recover refrigerant, evacuate system, and recharge.
Clean coil or remove restriction.
Replace filter.
Clean coil.
Recover excess refrigerant.
1. Check TXV bulb mounting and secure tightly to
suction line.
2. Replace TXV if stuck open or closed.
Recover refrigerant, evacuate system, and recharge.
Determine cause and correct.
Remove restriction.
Check for leaks, repair, and recharge.
Check for source and eliminate.
1. Check TXV bulb mounting and secure tightly to
suction line.
2. Replace TXV if stuck open or closed.
Recover excess refrigerant.
Replace filter.
Check for leaks, repair, and recharge.
Remove source of restriction.
1. Check TXV bulb mounting and secure tightly to
suction line.
2. Replace TXV if stuck open or closed.
Increase air quantity. Check filter and replace if
necessary.
Reset thermostat.
Replace.
Table 31 — Heating Service Analysis
PROBLEM
Burners will not
ignite.
CAUSE
Misaligned spark electrodes.
No gas at main burners.
Water in gas line.
No power to furnace.
No 24 v power supply to control circuit.
Inadequate heating.
Miswired or loose connections.
Burned-out heat anticipator in thermostat.
Broken thermostat wires.
Dirty air filter.
Gas input to unit too low.
Unit undersized for application.
Restricted airflow.
Blower speed too low.
Limit switch cycles main burners.
Too much outdoor air.
Poor flame
characteristics.
Incomplete combustion (lack of combustion air)
results in:
Aldehyde odors, CO, sooting flame, or floating flame.
Burners will not
turn off.
Unit is locked into Heating mode for a one minute
minimum.
LEGEND
GR — Ground
51
REMEDY
Check flame ignition and sensor electrode positioning.
Adjust as needed.
Check gas line for air; purge as necessary. After purging
gas line of air, allow gas to dissipate for at least
5 minutes before attempting to relight unit.
Check gas valve.
Drain water and install drip leg to trap water.
Check power supply, fuses, wiring, and circuit breaker.
Check transformer. Transformers with internal
overcurrent protection require a cool-down period before
resetting. Check 24-v circuit breaker; reset if necessary.
Check all wiring and wire nut connections.
Replace thermostat.
Run continuity check. Replace wires if necessary.
Clean or replace filter as necessary.
Check gas pressure at manifold. Clock gas meter for
input. If too low, increase manifold pressure or replace
with correct orifices.
Replace with proper unit or add additional unit.
Clean filter, replace filter, or remove any restrictions.
Install alternate motor, if applicable, or adjust pulley to
increase fan speed.
Check rotation of blower, thermostat heat anticipator
settings, and temperature rise of unit. Adjust as needed.
Adjust minimum position.
Check economizer operation.
Check all screws around flue outlets and burner
compartment. Tighten as necessary.
Cracked heat exchanger.
Overfired unit — reduce input, change orifices, or adjust
gas line or manifold pressure.
Check vent for restriction. Clean as necessary.
Check orifice to burner alignment.
Wait until mandatory one minute time period has
elapsed or cycle power to unit.
Refer to Fig. 39 for IGC troubleshooting information.
IDM —
IGC —
LEGEND
Induced-Draft Motor
Integrated Gas Unit Controller
NOTE: Thermostat Fan Switch in the
“AUTO” position.
Fig. 39 — IGC Control (Heating and Cooling)
52
Copyright 2001 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 534-80027
Printed in U.S.A.
Form 48HG-2SI
Pg 54
3-01
Replaces: 48HG-1SI
Book 1 4
Tab 1a 6a
MODEL NO.:___________________________________________
SERIAL NO.:______________________________________________
DATE:_________________________________________________
TECHNICIAN: ____________________________________________
I. PRE-START-UP:
VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT
VERIFY INSTALLATION OF OUTDOOR AIR HOOD
VERIFY INSTALLATION OF FLUE EXHAUST AND INLET HOOD
VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS
VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT
VERIFY GAS PRESSURE TO UNIT GAS VALVE IS WITHIN SPECIFIED RANGE
CHECK GAS PIPING FOR LEAKS
CHECK THAT INDOOR-AIR FILTERS ARE CLEAN AND IN PLACE
CHECK THAT OUTDOOR AIR INLET SCREENS ARE IN PLACE
VERIFY THAT UNIT IS LEVEL
CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE, AND VERIFY SETSCREW
IS TIGHT
VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED
VERIFY THAT SCROLL COMPRESSORS ARE ROTATING IN THE CORRECT DIRECTION
VERIFY INSTALLATION OF THERMOSTAT/SPACE SENSOR
VERIFY SET UP OF ELECTRONIC CONTROLS (REFER TO CONTROLS AND TROUBLESHOOTING GUIDE)
VERIFY THAT CRANKCASE HEATERS HAVE BEEN ENERGIZED FOR AT LEAST 24 HOURS
II. START-UP
ELECTRICAL
SUPPLY VOLTAGE
L1-L2
COMPRESSOR AMPS — COMPRESSOR A1
— COMPRESSOR B1
— COMPRESSOR C1
(016-024 ONLY)
SUPPLY FAN AMPS ___________
TEMPERATURES
OUTDOOR-AIR TEMPERATURE
RETURN-AIR TEMPERATURE
COOLING SUPPLY AIR
GAS HEAT SUPPLY AIR
PRESSURES
GAS INLET PRESSURE
GAS MANIFOLD PRESSURE STAGE NO. 1
REFRIGERANT SUCTION
CIRCUIT A
CIRCUIT B
CIRCUIT C
REFRIGERANT DISCHARGE CIRCUIT A
CIRCUIT B
CIRCUIT C
L2-L3
L3-L1
L1
L1
L1
L2
L2
L2
F DB (Dry Bulb)
F DB
F
F
L3
L3
L3
F WB (Wet Bulb)
IN. WG
IN. WG
PSIG
PSIG
PSIG (016-024 ONLY)
PSIG
PSIG
PSIG (016-024 ONLY)
STAGE NO. 2
IN. WG
VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS ON PAGE 44
GENERAL
ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS
Copyright 2001 Carrier Corporation
Book
Tab
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
1 4
PC 111
Catalog No. 534-80027
Printed in U.S.A.
Form 48HG-2SI
Pg CL-1
3-01
Replaces: 48HG-1SI
1a 6a
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
START-UP CHECKLIST