Carrier 48TF004, 48TF005, 48TF006, 48TF007 Installation, Start-up And Service Instructions Manual

Download

Page 1

Installation, Start-Up, and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS INSTALLATION

Step 1 — Provide Unit Support

•ROOF CURB

• SLAB MOUNT

Step 2 — Field Fabricate Ductwork Step 3 — In stall Exte rnal Trap for Condensate

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Drain

Step 4 — Rig and Place Unit

• POSITIONING

Step 5 — Install Flue Hood Step 6 — Install Gas Piping Step 7 — Make Electrical Connections

• FIELD POWER SUPPLY

• FIELD CONTROL WIRING

• HEA T ANTICIPATOR SETTINGS

Step 8 — Make Outdoor-Air Adjustments

and Install Outdoor-Air Hood

• MANUAL OUTDOOR-AIR DAMPER

• OPTIONAL DURABLADE ECONOMIZER

• OPTIONAL ECONOMI$ER

Step 9 — Adjust Evaporator-Fan Speed

• DIRECT-DRIVE MOTORS

• BELT-DRIVE MOTORS

ST ART-UP SERVICE TROUBLESHOOTING START-UP CHECKLIST

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-38

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-43

. . . . . . . . . . . . . . . . . . . . . . . . . 44-49

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 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 li terature, tag s and labels attached to t he unit, and other safety precautions that 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

. . . . . . . . . . . . . . . . . . . 1

. . . . . . . . . . . . . . . 2

. . . . . . . . . . . . . . . . . . . . . 2

. . . . . . . . . . . . . . . . . . . . . . . 4

. . . . . . . . . . . . . . . . . . . . . . 4

. . . . . . . . . . . 8

. . . . . . . . . . . . . . . . . . 11

. . . . . . . . . 19

. . . . . . . . . . . . . . . . . . . . . . . .CL-1

48TF004-007

Single-Package Rooftop

Heating/Cooling Units

Disconnect gas piping from unit when leak testing at pressure greater than 1/2 psig. Pressures greater than 1/2 psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than replaced before use. When pressure testing field-supplied gas piping at pressures of

/2 psig or less, a unit connected to such piping must be isolated by manually cl osing the gas valve.

Before performing service or maintenance operations on unit, turn off main power switch to unit and install a lockout tag. Electrical shock could cause personal injury.

INSTALLATION

Unit is shipped in the vertical duct configuration. To convert to horizontal configuration, remove screws from side duct opening covers and remove covers. Using the same screws, install covers on vertical duct openings with the insulation-side down. Seals around duct openings must be tight. See Fig. 1.

Confirm before installation of unit that voltage, amperage and circuit protection requirements listed on unit data plate agree with power supply provided.

Step 1 — Provide Unit Support

ROOF CURB — Assemb le and install accessor y roof cu rb in accordance with instructions shipped with curb. See Fig. 2. Install insulation, cant strips, roofing felt, and counter flashing as shown. Ductwork must be attached to curb, not to the unit. The

accessory thru-the-bottom power and gas connection package must be installed before the unit is set on the roof curb. If field-

installed (thru-the-roof curb) gas connections are desired, use factory-supplied mount the thru-the-roof curb connection to the roof curb. Gas connections and power connections to the unit must be field installed after the unit is installed on the roof curb.

If electric and control wiring is to be routed through the basepan, attach the accessory thru-the-bottom service connections to the basepan in accordance with the accessory installation instructions.

/4-in. pipe coupling and gas plate assembly to

/2 psig, it must be

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 4 Ta b 1 a 6 a

PC 111 Catalog No. 534-80000 Printed in U.S.A. Form 48TF-1SI Pg 1 8-00 Replaces: New

IMPORTANT: The gasketing of the unit to the roof curb

is critical for a watertight seal. Install gasket supplied

with the roof curb as shown in Fig. 2. Improperly

applied gasket can result in air leaks and poor unit

performance.

Page 2

Fig. 1 — Horizontal Conversion Panels

Curb should be level. Unit leveling tolerances are shown in Fig. 3. This is necessary for unit drain to function properly. Refer to Accessory Roof Curb Installation Instructions for additional information as required.

SLAB MOUNT (Horizontal Units Only) — Provide a level concrete slab that extends a minimum of 6 in. beyond unit cabinet. Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from obstructing airflow .

NOTE: Horizontal units may be installed on a roof curb if required.

Step 2 — Field Fabricate Ductwork —

Secure all ducts to roof curb and building structure on vertical ducted units. Do not connect ductwork to unit. For horizontal applica- tions, field-supplied flanges should be attached to horizontal duct openings and all ductwork should be secured to the flanges. 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 in-

sulated and covered with a vapor barrier.

If a plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes.

A minimum clearance is not required around ductwork. Cabinet return air static shall not exceed –.20 in. wg with EconoMi$er, –.35 in. wg with Durablade economizer, or –.45 in. wg without economizer.

These units are designed for a minimum continuous heating return-air temperature of 50 F (dry bulb), or an intermittent operation down to 45 F (dry bulb), such as when used with a night set-back thermostat.

Step 3 — Install External Trap for Condensate Drain —

located on the bottom and side of the unit. Unit discharge connections do not determine the use of drain connections; either drain connection can be used with vertical or horizontal applications.

The unit’s 3/4-in. condensate drain connections are

When using the standard side drain connection, make sure the plug (Red) in the alternate bottom connection is tight before installing the unit.

To use the bottom drain connection for a roof curb installation, relocate the factory-installed plug (Red) from the bottom connection to the side connection. See Fig. 4. The piping for the condensate drain and external trap can be completed after the unit is in place.

All units must have an external trap for condensate drainage. Install a trap at least 4-in. deep and protect agai nst freez eup. If drain line is installed downstream from the external trap, pitch the line away from the unit at 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection (

Step 4 — Rig and Place Unit —

/4 in.).

Inspect unit for transportation damage. File any claim with transportation agency. Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit. Rollers may be used to move unit across a roof. Level by using unit frame as a reference. See Table 1 and Fig. 5 for additional information.

Lifting holes are provided in base rails as shown in Fig. 6.

Refer to rigging instructions on unit.

All panels must be in place when rigging.

POSI TION I NG — Maintain clearance around and above unit to provide minimum distance from combustible materials, proper airflow, and service access. See Fig. 6. A properly positioned unit will have the following clearances between unit and roof curb:

/4-in. clearance between roof curb and base rails on each side and duct end of unit; 1/4-in. clearance between roof curb and condenser coil end of unit. (See Fig. 2, section C-C.)

Do not install unit in an indoor location. Do not locate unit air inlets near exhaust vents or other sources of contaminated air.

Be sure that unit is installed such that snow will not block

the combustion intake or flue outlet.

Page 3

Fig. 2 — Roof Curb Dimensions

ROOF CURB ACCESSORY

A UNIT SIZE

CRRFCURB001A00

1′-2″ [356]

48TF004-007

CRRFCURB002A00

2′-0″ [610]

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels.

3. Dimensions in [ ] are in millimeters.

4. Roof curb, galvanized steel.

5. Attach ductwork to curb (flanges of duct rest on curb).

6. Service clearance: 4 ft on each side.

D ALT

DRAIN

HOLE

“E”

GAS

“F”

POWER

“G”

CONTROL

CONNECTOR

PKG. ACCY.

1′-9

/16″

[551]

1′-4″ [406]

13/4″

[44.5]

/4″

[19] NPT

/4″ [19] NPT)

/2″

[12.7]

CRBTMPWR001A00

/4″ [31.7] CRBTMPWR002A00

/2″

[12.7] NPT

/4″ [19] NPT

/2″

[12.7]

CRBTMPWR003A00

/4″

[19] NPT

11/4″ [31.7] CRBTMPWR004A00

7. Direction of airflow.

8. Connector packages CRBTMPWR001 A00 and 002A0 0 are for thru-the curb connections. Packages CRBTMPWR003A00 and 004A 00 are for thru-the-bottom connections.

Page 4

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B B-C A-C

0.5 1.0 1.0

Fig. 3 — Unit Leveling Tolerances

OTE: Drain plug is shown in factory-installed position.

Fig. 4 — Condensate Drain Connection

Unit may be installed directly on wood flooring or on

Class A, B, or C roof-covering material when roof curb is used.

Although unit is weatherproof, guard against water from

higher level runoff and overhangs.

Flue vent discharge must have a minimum horizontal clearance of 4 ft from electric and gas meters, gas regulators, and gas relief equipment.

Minimum distance between unit and other electrically live parts is 48 inches.

Flue gas can deteriorate building materials. Orient unit such

that flue gas will not affect building materials.

Adequate combustion-air space must be provided for proper operation of this equipment. Be sure that installation complies with all local codes and Section 5.3, Air for Combustion and Ventilation, NFGC (National Fuel Gas Code), and ANSI (American National Standards Institute) Z223.1, and NFPA (National Fire Protection Association) 54 TIA-54-84-1. In Canada, installation must be in accordance with the CAN1-B149 installation codes for gas burning appliances.

After unit is in position, remove rigging skids and shipping materials.

Step 5 — Install Flue Hood —

Flue hood is shipped screwed to the basepan beside the burner compa rtment access panel. Remove from shipping location and using screws provided, install flue hood and screen in location shown in Fig. 7.

Step 6 — Install Gas Piping —

Unit is equipped for use with type of gas shown on nameplate. Refer to local building codes, or in the absence of local codes, to ANSI Z223.1 entitled National Fuel Gas Code. In Canada, installation must be in accordance with the CAN1.B149.1 and CAN 1.B149.2 installation codes for gas burning appliances.

For natural gas applications, gas pressure at unit gas con-

nection must not be less than 4 in. wg or greater than

13.0 in. wg while unit is operating. On 48TF005,006,007 high heat units, the gas pressure at unit gas connection must not be less than 5 in. wg or greater than 13 in. wg while the unit is operating. For propane applications, the gas pressure must not be less than 5 in. wg or greater than 13 in. wg at the unit connection.

Size gas supply piping for 0.5 in. wg maximum pressure drop. Do not use supply pipe smaller than unit gas connection. Support gas piping as shown in the table in Fig. 8. For exam-

ple, a

/4-in. gas pipe must have one field-fabricated support beam every 8 ft. Therefore, an 18-ft long gas pipe would have a minimum of 2 support beams, a 48-ft long pipe would have a minimum of 6 support beams.

See Fig. 8 for typical pipe guide and locations of external

manual main shutoff valve.

NOTES:

1. Dimensions in ( ) are in millimeters.

2. Hook rigging shackle s through holes in base rail, as shown in detail “A.’ Holes in base rails are centered around the unit center of gravity. Use wooden top skid when rigging to prevent rigging straps from damaging unit.

UNIT

48TFE,TFF,TFM,TFN004 510 231 48TFD,TFE,TFF ,TFL,TFM,TFN005 520 236 48TFD,TFE,TFF ,TFL,TFM,TFN006 540 245

48TFD,TFE,TFF007 615 279

3. Unit weights do not include economizer. See Table 1 for economizer weights.

All panels must be in place when rigging.

MAX WEIGHT “A” “B” “C” Lb Kg in. mm in. mm in. mm

73.69 1872 37.50 953 33.35 845

Fig. 5 — Rigging Details

Page 5

Table 1 — Physical Data — 48TF004-007

UNIT SIZE 48TF E/F/M/N004 D/E/F/L/M/N005 D/E/F/L/M/N006 D/E/F007 NOMINAL CAPACITY (tons) 3456 OPERATING WEIGHT (lb)

Unit

Al/Al* 460 470 490 565 Al/Cu* 465 476 497 576 Cu/Cu* 468 482 505 587

Economizer

Durablade 34 34 34 34 EconoMi$er 47 47 47 47

Roof Curb† 115 115 115 115

COMPRESSOR Reciprocating

Quantity 1111 No. Cylinders (per Circuit) 2222 Oil (oz) 50 50 50 54

REFRIGERANT TYPE R-22

Expansion Device Acutrol™ Metering Device Operating Charge (lb-oz)

Circuit 1 4-4 6-6 6-14 9-0 Circuit 2 ————

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Rows...Fins/in. 1...17 2...17 2...17 2...17 Total Face Area (sq ft) 8.36 8.36 10.42 10.42

CONDENSER FAN Propeller Type

Nominal Cfm 3500 4000 4000 4000 Quantity...Diameter (in.) 1...22.0 1...22.0 1...22.0 1...22.0 Motor Hp...Rpm Watts Input (Total) 325 325 325 325

EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins

Rows...Fins/in. 2...15 2...15 3...15 4...15 Total Face Area (sq ft) 4.17 5.5 5.5 5.5

EVAPORATOR FAN Centrifugal Type

Quantity...Size (in.) Std 1...10 x 10 1...10 x 10 1...11 x 10 1...10 x 10

Type Drive Std Direct Direct Direct Belt

Nominal Cfm 1200 1600 2000 2400 Maximum Co ntinuous Bhp Std .34 .75 1.20 2.40

Motor Frame Size Std 48 48 48 56

Nominal Rpm High/Low Std 860/800 1075/970 1075/970 —

Fan Rpm Range Std — — — 1070-1460

Motor Bearing Type Ball Ball Ball Ball Maximum Allowable Rpm 2100 2100 2100 2100 Motor Pulley Pitch Diameter Min/Max (in.) Std — — — 2.8/3.8

Nominal Motor Shaft Diameter (in.) Std

Fan Pulley Pitch Diameter (in.) Std ———4.5

Belt, Quantity...Type...Length (in.) Std — — — 1...A...40

Pulley Center Line Dis tance (in.) Std — — — 14.7-15.5

Speed Change per Full Turn of Std ———80

Movable Pulley Flange (rpm) Alt 48 70 80 —

Movable Pulley Maximum Full Turns Std ——— 5

From Closed Position Alt 555—

Factory Setting Std ——— 3

Factory Speed Setting (rpm) Std ———1225

Fan Shaft Diameter at Pulley (in.)

Alt 1...10 x 10 1...10 x 10 1...10 x 10 — High-Static 1...10 x 10 1...10 x 10 1...11 x 10 1...10 x 10

Alt Belt Belt Belt — High-Static Belt Belt Belt Belt

Alt 1.00 1.00 1.30/2.40** — High-Static 2.40 2.40 2.90 2.90

Alt 48 48 56 — High-Static 56 56 56 56

Alt 1620 1620 1725 — High-Static 1725 1725 1725 1725

Alt 760-1000 835-1185 900-1300 — High-Static 1075-1455 1075-1455 1300-168 5 1300-1685

Alt 1.9/2.9 1.9/2.9 2.4/3.4 — High-Static 2.8/3.8 2.8/3.8 3.4/4.4 3.4/4.4

Alt High-Static

Alt 4.5 4.0 4.5 — High-Static 4.5 4.5 4.5 4.5

Alt 1...A...34 1...A...34 1...A...39 — High-Static 1...A...39 1...A...39 1...A...40 1...A...40

Alt 10.0-12.4 10.0-12.4 14.7-15.5 — High-Static 10.0-12.4 10.0-12.4 14.7-15.5 14.7-15.5

High-Static 65 65 60 60

High-Static 6655 Alt 333—

High-Static 3 Alt 856 975 1060 —

High-Static 1233 1233 1396 1396

LEGEND

Al — Aluminum Bhp — Brake Horsepower Cu — Copper

*Evaporator coil fin material/co ndenser coil fin material. Cont act your local

representative for details about coated fins.

†Weight of 14-in. roof curb.

**Single phase/three-phase.

/4...1100

31/

2 2 8

††Rollout switch lockout is manually reset by interrupting power to unit or

resetting thermostat.

|| Single- phase unit s have a single-st age gas valve. The heating in put values

are as follows:

48TFF004, 115,000 Btuh 48TFF005, 150,000 Btuh 48TFF006, 150,000 Btuh

/4...1100

31/

2 8 8

NOTE: High-static motor not available on single-phase units.

Scroll

/4...1100

—

31/

Page 6

Table 1 — Physical Data — 48TF004-007 (cont)

UNIT SIZE 48TF E/F/M/N004 D/E/F/L/M/N005 D/E/F/L/M/N006 D/E/F007 FURNACE SECTION

Rollout Switch Cutout Temp (F)†† 195 195 195 195 Burner Orifice Diameter

(in. ...drill size)

Natural Gas Std TFD — .113...33 .113...33 .113...33

Liquid Propane Alt TFD — .089...43 .089...43 .089...43

Thermostat Heat Anticipator Setting (amps)

208/230 v and 575 Stage 1 .14 .14 .14 .14 460 v Stage 1 .14 .14 .14 .14

Gas Input (B tuh)|| Stage 1 TFD — 72,000 72,000 72,000

Efficiency (Steady

State) (%) 80 80 80 80

Temperature Rise Range TFD — 25-55 25-55 25-55

Manifold Pressure (in. wg)

Natural Gas Std 3.5 3.5 3.5 3.5 Liquid Propane Alt 3.5 3.5 3.5 3.5

Gas Valve Quantity 1111 Gas Valve Pressure Range

Psig 0.180-0.487 0.180-0.487 0.180-0.487 0.180-0.487 in. wg 5.0-13.5 5.0-13.5 5.0-13.5 5.0-13.5

Field Gas Connection Size (in.)

HIGH-PRESSURE SWITCH (psig)

Standard Com p ressor 450 ± 50 500 ± 50 Internal Relief (Differential) Cutout 428 428 Reset (Auto.) 320 320

LOSS-OF-CHARGE (LOWPRESSURE SWITCH) (psig)

Cutout Reset (Auto.) 22 ± 7

FREEZE PROTECTION THERMOSTAT (F)

Opens 30 ± 5 Closes 45 ± 5

OUTDOOR-AIR INLET SCREENS Cleanable

Quantity...Size (in.) 1...20 x 24 x 1

RETURN-AIR FILTERS Throwaway

Quantity...Size (in.) 2...16 x 25 x 2

Stage 2 .14 .14 .14 .14 Stage 2 .14 .14 .14 .14

Stage 2 (3-phase units)

LEGEND

Al — Aluminum Bhp — Brake Horsepower Cu — Copper

*Evaporator coil fin material/co ndenser coil fin material. Cont act your local

representative for details about coated fins.

†Weight of 14-in. roof curb.

**Single phase/three-phase.

TFE .113...33 .113...33 .113...33 .113...33 TFF .113...33 .129...30 .129...30 .129...30 TFL — .102...38 .102...38 — TFM .102...38 .102...38 .102...38 — TFN .102...38 .116...32 .116...32 —

TFE .089...43 .089...43 .089...43 .089...43 TFF .089...43 .102...38 .102...38 .102...38 TFL — .082...45 .082...45 — TFM .082...45 .082...45 .082...45 — TFN .082...45 .089...43 .089...43 —

TFE 72,000 115 ,00 0 115,000 115 ,00 0 TFF 82,000 120,000 120,00 0 120,000 TFL — 60,000 60,000 — TFM 60,000 90,000 90,000 — TFN 90,000 120,000 120,000 —

TFF 115,000 150,000 150,000 150,000

TFE 25-55 35-65 35-65 35-65 TFF 55-85 50-80 50-80 50-80 TFL — 20-50 20-50 — TFM 20-50 30-60 30-60 — TFN 30-60 40-70 40-70 —

7 ± 3

††Rollout switch lockout is manually reset by interrupting power to unit or

resetting thermostat.

|| Single-phase units have a single-stage gas valve. The heating input values

are as follows:

48TFF004, 115,000 Btuh 48TFF005, 150,000 Btuh 48TFF006, 150,000 Btuh

NOTE: High-static motor not available on single-phase units.

Page 7

Fig. 6 — Base Unit Dimensions

UNIT

STD UNIT

WEIGHT

DURABLADE

ECONOMIZER WEIGHT

ECONOMI$ER

WEIGHT

(A)

CORNER WEIGHT

(B)

CORNER WEIGHT

(C)

CORNER WEIGHT

(D)

CORNER WEIGHT

“A”

PANEL

LENGTH

Lbs Kg Lbs Kg Lbs Kg Lbs Kg Lbs Kg Lbs Kg Lbs Kg

48TFN,TFM,TFF,TFE004

460 209

34 15.4 47 21.3

140 63.5 105 47.6 159 72.1 56 25.4 1′-10

″

[568.0]

48TFN,TFM,TFL,TFF,TFE,TFD005

470 213 142 64.4 106 48.1 162 73.5 60 27.2 1′-10

″

[568.0]

48TFN,TFM,TFL,TFF,TFE,TFD006

490 222 150 68.0 115 52.2 160 72.6 65 29.5 1′-0

″

[315.0]

48TFF,TFE,TFD007

565 256 165 74.8 136 61.7 200 90.7 64 29.0 1′-0

″

[315.0]

BOTTOM POWER CHART,

THESE HOLES REQ’D FOR USE

WITH ACCESSORY PACKAGES —

CRBTMPWR001A00, 3A00 (

/2″, 3/4″)

THREADED

CONDUIT

SIZE

WIRE

USE

REQ’D HOLE

SIZES (Max.)

″

24 V

″

[22.2]

″

Power 1

″

[28.4]

″

FPT

Gas 1

″

[31.8]

CONNECTION SIZES

″

Dia. [35] Field Power Supply Hole

2″ Dia. [51] Power Supply Knockout

″

Dia. [64] Power Supply Knockout

″

Dia. [22] Field Control Wiring Hole

″

-14 NPT Condensate Drain

″

-14 NPT Gas Connection

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Center of Gravity.

3. Direction of Airflow.

4. On vertical discharge units, ductwork to be attached to accessory roof curb only. For horizontal discharge units, field-supplied flanges should be attached to horizontal discharge openings, and all ductwork should be attached to the flanges.

5. Minimum clearance (local codes or jurisdiction may prevail): a. Between unit, flue side and combustible surfaces, 36 inches. b. Bottom of unit to combustible surfaces (when not using curb)

1 inch. Bottom of base rail to combustible surfaces (when not using curb) 0 inches.

c. Condenser coil for proper airflow, 36 in. one side, 12 in. the other.

The side getting the greater clearance is optional. d. Overhead, 60 in. to assure proper condenser fan operation. e. Between units, control box side, 42 in. per NEC (National Electri-

cal Code). f. Between unit and ungrounded surfaces, control box side, 36 in.

per NEC. g. Between unit and block or concrete walls and other grounded sur-

faces, control box side, 42 in. per NEC. h. Horizontal supply and return end, 0 inches.

6. With the exception of the clearance for the condenser coil and combustion side as stated in Note 5a, b, and c, a removable fence or barricade requires no clearance.

7. Units may be installed on combustible floors made from wood or Class A, B, or C roof covering material if set on base rail.

8. The vertical center of gravity is 1′-6″ [457] up from the bottom of the base rail.

Page 8

Step 7 — Make Electrical Connections

BLOWER ACCESS PANEL

LEGEND

NFGC —

National Fuel Gas Code *Field supplied. NOTE: Follow all local codes.

SPACING OF SUPPORTS

Fig. 8 — Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

STEEL PIPE

NOMINAL DIAMETER

(in.)

DIMENSIONS

(feet)

/4 or 1

11/4 or larger

Fig. 7 — Flue Hood Details

Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code), ANSI/NFPA, latest edition, and local electrical codes. Do not use gas piping as an electrical ground. Fail- ure to follow this warning could result in the installer being liable for personal injury of others.

FIELD POWER SUPPLY — All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the transformer must be rewired by moving the black wire with the nection and moving to the 200-volt primary side of the transformer.

tails are provided for field wire connections. Use factorysupplied splices or UL (Underwriters’ Laboratories) approved copper/aluminum connector .

requirements. Install field wiring as follows:

within voltage range indicated on unit nameplate (see Table 2). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in the legend for Table 2, Note 2 to determine the percent of voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Carrier warranty.

FIELD CO NTROL WIRING — Install a Carrier-approved accessory thermostat assembly according to installation instructions included with the acc essory. Locate thermostat assembly on a solid wall in the conditioned space to sense ave rage temperature in accordanc e with thermostat ins tallation instructions. Connect thermostat wires to terminal board.

wire from subbase terminals through connector on unit to lowvoltage connections (shown in Fig. 10).

NOTE: For wire runs up 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 to

/4-in. female space connector from the 230-volt con-

/4-in. male terminal on the

Refer to unit label diagram for additional information. Pig-

When installing units, provide a disconnect per the NEC. All field wiring must comply with NEC and local

1. Install conduit through side panel openings. For units without electric heat, install conduit between disconnect and control box.

2. Install power lines to terminal connections as shown in Fig. 9.

Voltage to compressor terminals during operation must be

Route thermostat cable or equivalent single leads of colored

the thermostat and will require a junction box and splice at the thermostat.

Pass the control wires through the hole provided in the corner post; then feed wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 11. The raceway provides the UL required clearance between high- and low-voltage wiring.

HEAT ANTICIPATOR SETTINGS — Set heat anticipator settings at .14 amp for the first stage and .14 amp for secondstage heating, when available.

Page 9

RACEWAY LOW VOLTAGE

CONNECTIONS

INTEGRATED GAS UNIT CONTROLLER (IGC)

HOLE IN END PANEL (HIDDEN)

208/230-1-60

208/230-3-60

460-3-60

(SIZE 007 ONLY)

LEGEND

C— COMP — NEC — TB —

575-3-60

(SIZE 007 ONLY)

Contactor Compressor National Electrical Code Terminal Block

208/230-3-60

575-3-60, 460-3-60

(SIZES 004-006)

Fig. 9 — Power Wiring Connections

LEGEND

AHA —

NOTES:

1. Connect Y2 when unit is equipped with an economizer.

2. Connect W2 when unit is equipped with two stages of heat.

Adjustable Heat Anticipator Field Wiring Factory Wiring

Fig. 10 — Low-Voltage Connections

Fig. 11 — Field Control Wiring Raceway

Page 10

Table 2 — Electrical Data

UNIT 48TF

NOMINAL

V-Ph-Hz

208/230-1-60

VOLTAGE

IFM

TYPE

RANGE

Min Max RLA LRA Qty Hp FLA MCA MOCP† FLA LRA

Std

187 254 16.2 96.0 1

Alt 4.9 26.6/26.6 35/35 26/26 111/111

COMPRESSOR

(ea)

Std

208/230-3-60

187 254 10.2 75.0 1

Alt 4.9 19.1/19.1 25/25 19/19 90/90

High 5.2 19.4/19.4 25/25 19/19 109/109

004

460-3-60

Std

Alt 2.1 8.4 15 8 48/48

414 508 4.4 40.0 1

High 2.6 8.9 15 9 57/57

Std

575-3-60

Alt 2.1 6.9 15 8 37

518 632 3.7 31.0 1

High 2.6 7.3 15 7 45

208/230-1-60

Std

187 254 23.3 118.0 1

Alt 4.9 35.4/35.4 45/45 34/34 133/133

Std

208/230-3-60

187 254 15.4 90.0 1

Alt 4.9 25.6/25.6 30/30 25/25 105/105

High 5.2 25.9/25.9 30/30 25/25 124/124

005

460-3-60

Std

Alt 2.1 13.3 20 13 53

414 508 8.3 45.0 1

High 2.6 13.8 20 13 62

Std

575-3-60

Alt 2.1 10.3 15 11 42

518 632 6.4 36.0 1

High 2.6 10.7 15 10 50

208/230-1-60

Std

187 254 28.8 147 1

Alt 6.6 44.0/44.0 60/60 42/42 184/184

Std

208/230-3-60

187 254 16.3 114 1

Alt 5.2 26.6/26.6 35/35 26/26 148/148

High 7.5 28.9/28.9 35/35 29/29 174/174

006

460-3-60

Std

Alt 2.6 12.7 15 12 81

414 508 7.4 64 1

High 3.4 13.5 20 13 94

Std

575-3-60

Alt 3.0 10.5 15 10 66

518 632 6.2 62 1

High 3.4 12.6 15 11 76

Std

187 254 23.6 146 1

High 7.5 32.5/32.5 40/40 32/32 205/205

Std

414 508 10.6 73 1

High 3.4 16.1 20 16 103

Std

518 632 8.5 58.4 1

High 3.4 12.9 20 14 82

007

208/230-3-60

460-3-60

575-3-60

LEGEND

FLA — Full Load Amps HACR — Heating, Air Conditioning and Refrigeration IFM — Indoor (Evaporator) Fan Motor LRA — Locked Rotor Amps MCA — Minimum Circuit Amps MOCP — Maximum Overcurrent Protection NEC — National Electrical Code OFM — Outdoor (Condenser) Fan Motor RLA — Rated Load Amps

*Used to determine minimum disconnect per NEC.

†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 th e uni t sha ll be f use o r HA CR br eak er. Canadian units may be fuse or circuit breaker.

Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%.

of voltage imbalance.

Use the following formula to determine the percent

% Voltage Imbalance

= 100 x

max voltage dev i ation from average voltage

average voltage

OFM

(ea)

/41.4

/40.8

/41.4

/40.8

/41.4

/40.8

/41.4

/40.6

IFM

FLA

3.5

COMBUSTION

FAN MOTOR

FLA

POWER SUPPLY

24.5/24.5 30/30 23/23 106/106

17.7/17.7 25/25 17/17 85/85

DISCONNECT

SIZE*

1.3

7.6 15 7 48/48

1.3

6.3 15 7 35

3.5

34.0/34.0 40/40 32/32 129/129

24.2/24.2 30/30 23/23 101/101

1.8

13.0 20 13 51

1.8

10.1 15 10 41

5.9

43.3/43.3 60/60 42/42 161/161

27.3/27.3 35/35 29/29 128/128

3.1

13.2 20 13 72

3.1

10.9 15 11 58

5.2

2.6

30.2/30.2 35/35 29/29 180/180

15.4 20 15 90

12.3 15 13 72

Example: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

Average Voltage =

Determi ne maximum deviation from average volt ag e.

(AB) 457 – 452 = 5 v (BC) 464 – 457 = 7 v (AC) 457 – 455 = 2 v

452 + 464 + 455

1371

= 457

Maximum deviation is 7 v. Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x

457

= 1.53%

This amount of phase imbalance is satis f act ory as it is below t he maximum allowable 2%.

IMPORTANT:

than 2%, contact your loca l electric utility company immediately.

If the supply voltage phase imbalance is more

Page 11

Step 8 — Make Outdoor-Air Adjustments and

Fig. 14 — Outdoor-Air Damper with

Hood Att ached

Fig. 15 — Position Setting

Install Outdoor-Air Hood

MANUAL OUTDOOR-AIR DAMPER — The outdoor-air hood and screen are attached to the basepan at the bottom of the unit for shipping.

Assembly:

1. Determine quantity of ventilation required for building. Record amount for use in Step 8.

2. Remove and save outdoor air opening panel and screws. See Fig. 12.

3. Separate hood and screen from basepan by removing the 4 screws securing them. Save all screws.

4. Replace evaporator coil access panel.

OUTDOOR AIR OPENING PANEL

3 SCREWS (SIDE)

5. Place hood on front of outdoor air opening panel. See Fig. 13 for hood details. Secure top of hood with the 4 screws removed in Step 3. See Fig. 14.

6. Remove and save 6 screws (3 on each side) from sides of the manual outdoor-air damper.

7. Align screw holes on hood with screw holes on side of manual outdoor-air damper. See Fig. 13 and 14. Secure hood with 6 screws from Step 6.

8. Adjust minimum position setting of the damper blade by adjusting the manual outdoor-air adjustment screws on the front of the damper blade. See Fig. 12. Slide blade vertically until it is in the appropriate position determined by Fig. 15. Tighten screws.

9. Remove and save screws currently on sides of hood. Insert screen. Secure screen to hood using the screws. See Fig. 14.

Fig. 12 — Damper Panel with Manual Outdoor-Air

Damper Installed

Fig. 13 — Outdoor-Air Hood Details

Page 12

OPTIONAL DURABLADE ECONOMIZER — The op-

Fig. 16 — Typical Access Panel Locations

Fig. 17 — Outdoor-Air Hood Details

Fig. 18 — Horizontal Durablade Economizer

Installation

tional economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are installed at the factory and the economizer is shipped in the vertical discharge position.

NOTE: Horizontal discharge block-off plate is shipped with the air hood package. If unit is to be used for vertical discharge application, discard this plate.

Assembly:

1. Determine if ventilation air is required in building. If so, determine minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 6.

2. Remove filter access panel by rais ing panel and s winging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 16. Remove optional outdoor-air damper hood package from filter section.

3. Assemble outdoor-air hood top and side plates as shown in Fig. 17. Install seal strips on hood top and sides. Put aside screen retainer and screws for later assembly. Do

not attach hood to unit at this time.

4. To convert to horizontal discharge application: a. Rotate economizer 90 degrees until the

economizer motor faces the condenser section (see Fig. 18).

b. Rotate the barometric relief damper hinge

90 degrees. Barometric relief damper should open vertically to operate properly.

c. Install horizontal discharge block-off plate over

the opening on the access panel. (Block-off plate MUST be installed before installing hood assembly.) See Fig. 19.

5. Insert economizer plug into economizer harness. Remove tape from barometric relief damper. See Fig. 20.

6. If ventilation air is not required, proceed t o Step 7. If ventilation air is required, determine minimum position setting for required airflow. See Fig. 21. Adjust minimum position setting by adjusting the screws on the position setting bracket. Slide bracket until the top screw is in the position determined by Fig. 21. Tighten screws.

7. Remove tape from outdoor-air thermostat (OAT). Fasten OAT to inside of hood using screws and speed c lips provided. See Fig. 22. Make sure OAT terminals are positioned up.

8. Replace outdoor-air opening panel using screws from Step 2. Replace filter a ccess panel. Ensure the filter ac cess panel slides along the tracks and is securely engaged.

9. Fasten hood top and side plate assembly (Fig. 17) to outdoor-air opening panel with screws provided.

10. Place knob supplied with economizer on OAT. See Fig. 22. Set for 3° F below indoor room thermostat setting. If accessory enthalpy control (EC) is used in place of OAT, see instructions shipped with EC for installation and adjustment. See Fig. 22.

11. Connect OAT per Fig. 23.

12. Slide outdoor-air inlet screen into screen track on hood side plate. While holding screen in place, fasten screen retainer to hood using screws provided.

NOTE: Refer to Fig. 24 for economizer barometric relief damper characteristics.

ECONOMIZER CONTROL BOARD

BAROMETRIC RELIEF DAMPER

ECONOMIZER PLUG

SHIPPING SCREW

ECONOMIZER MOTOR

Page 13

BLOCK-OFF PLATE

MINIMUM

POSITION

OPEN

REV.B

198818A

D C

B A

60 65 70

DAMPER

CLOSED

OPEN

OUTDOOR TEMP

REV

97-3672

CW–SETPOINTS–CCW

CONT

A CTS SHO

WN IN HIGH ENTHALPY

RUSH

AT 24V

3 mA

MIN. A

T 1 1 VDC

CONT

ACT RA

TINGS: 1.5A

RUN, 3.5A IN

OR UNPOWERED ST

A TE

TR1

24V

ENTHALPY CONTROL

HOOD

Fig. 22 — Outdoor-Air Thermostat/

Enthalpy Control Installation

Fig. 19 — Horizontal Discharge Block-Off Plate

U-SHAPED HOLE (NOT SHOWN)

ECONOMIZER CONTROL BOARD

ECONOMIZER PLUG

WIRING HARNESS

BAROMETRIC RELIEF DAMPER

SHIPPING SCREW

ECONOMIZER MOTOR

POSITION SETTING BRACKET

TOP SCREW

Fig. 20 — Durablade Economizer Installed in Unit

EXAMPLE:

Given —Negative Pressure. . . . . . . . . . . . . . . . . . . . . . . 0.2 in. wg

Determine — Setting = 5 in.

Outdoor Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 cfm

Fig. 21 — Durablade Economizer

Minimum Position Setting

Page 14

OUTDOOR AIR OPENING PANEL

SEAL STRIP

EXHAUST AIR SCREEN

EXHAUST AIR HOOD TOP

SCREEN RETAINER

EXHAUST AIR HOOD SIDES

EXHAUST AIR BOTTOM BRACKET

Fig. 26 — Typical Access Panel Locations

Fig. 27 — Exhaust Air Hood Assembly

LEGEND

Outdoor-Air Thermostat

OAT —

NOTE: See unit wiring diagram for details.

Fig. 23 — Wiring Connections for

Outdoor-Air Thermostat

ECONOMI$ER PLUG

CONTROLLER

GEAR-DRIVEN DAMPER

OUTDOOR AIR TEMPERATURE SENSOR

ACTUATOR

0.90

0.80

0.70

0.60

0.50

0.40

0.30

PRESSURE DROP (in. wg)

0.20

0.10

0.00

200 300 400

100

CFM

Fig. 24 — Durablade Economizer

Barometric Relief Damper Characteristics

OPTIONAL ECONOMI$ER — See Fig. 25 for EconoMi$er component locations.

1. To remove the existing unit filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the track and can be removed. Remove the indoor coil access panel and discard. See Fig. 26.

If installing an optional Power Exhaust Assembly, refer to the EconoMi$er Power Exhaust Installation Instructions.

Controller should be mounted in vertical position as shown in Fig. 25.

2. Assemble the hood assembly as follows: Remove the EconoMi$er hood from its packaging. Re-

move shipping brackets holding hood package to EconoMi$er. Locate the outdoor-air opening panel. See Fig. 27. Remove hood assembly shipping brackets located on the back (sloped) side of the EconoMi$er assembly. These brackets are used to retain the hood assembly during shipping only.

3. Installs the side panels and the bottom bracket. Assemble the exhaust

/8 x 3/4-in. seal strip on the exhaust air hood

air hood to the outdoor-air opening panel as shown in Fig. 27, using the screws provided. Do not attach hood assembly to unit at this time.

4. Install the top and side panels. Assemble the outdoor-air hood to the outdoor-air opening panel as shown in Fig. 28, using the screws provided. Do not attach hood assembly to the uni t

/8 x 3/4-in. seal strip on the outdoor-air hood

at this time.

500 600

700

800

BAROMETRIC RELIEF DAMPERS

Fig. 25 — EconoMi$er Component Locations

OUTDOOR-AIR OPENING PANEL

FILTER ACCESS PANEL

Page 15

5. Slide the outdoor-air inlet screens into the screen track on

ECONOMI$ER

ECONOMI$ER REAR FLANGE

UNIT BASE

UNIT FILTER RACK

ECONOMI$ER CLIP HVAC UNIT

WIRING HARNESS

OUTDOOR AIR BLOCK-OFF PLATE

Fig. 29 — Completed Hood Assembly

Fig. 30 — Rear EconoMi$er Flange Installation

Fig. 31 — EconoMi$er Installed

the hood side panels. While holding the screens in place, fasten the screen retainer to the hood using the screws provided. Repeat the process for the barometric exhaust air screen. Do not attach completed (Fig. 29) hood as- sembly to unit at this time .

6. Slide the EconoMi$er assembly into the rooftop uni t. S ee Fig. 30 and 31.

NOTE: Be sure to engage rear EconoMi$er flange under tabs in return-air opening of the unit base. See Fig. 30.

7. Install the outdoor-air block-off plate, then secure the EconoMi$er with the screws provided. See Fig. 31.

8. Remove and discard the 12-pin jumper plug from the unit wiring harness located in the upper left corner and insert the EconoMi$er plug into the unit wiring harness. Refer to wiring diagram Fig. 32 and 33. Also refer to Fig. 34 if installing an accessory power exhaust.

9. Install the complete hood assembly on the unit and secure using the screws provided.

10. Remove the indoor fan motor access panel. See Fig. 35.

11. Mount the supply-air temperature sensor to the lower left portion of the indoor blower housing with the two (2) screws provided (see Fig. 36). Connect the violet and pink wires to the corresponding connections on the supply-air temperature sensor. Replace the indoor fan motor access panel.

OUTDOOR AIR OPENING PANEL

ASSEMBLED EXHAUST HOOD

SEAL STRIP

OUTDOOR AIR HOOD SIDES

Fig. 28 — Outdoor-Air Hood Assembly

OUTDOOR AIR HOOD TOP

SCREEN RETAINER

OUTDOOR AIR INLET SCREENS

Page 16

OAT — RAT —

LEGEND

Outdoor-Air Tem perature Return-Air T emper ature

Fig. 32 — EconoMi$er Wiring

ECONOMI$ER CONTROLLER

OAT COM OAH

-15 V RAT

COM

RAH

+15 V

(+)

COM

DAT

COM

REM POT

COM

LED

COM

BROWN VIOLET

WHITE

RED

BROWN VIOLET

WHITE

RED

SUPPLY AIR

TEMPERATURE SENSOR

PINK VIOLET

TEMP

COM OUT PWR

TEMP TEMP COM

OUT PWR

SENSOR

V+

COM VAC

OUTDOOR AIR SENSOR

RETURN AIR SENSOR

Fig. 33 — EconoMi$er Sensor Wiring

Page 17

TO FUSED

DISCONNECT

RED

(575 VAC)

HT01AH859

HANDY BOX

SECONDARY

230VAC

2 x 4 IN.

GRAY

GREEN GND

BLACK L1 BLUE L2

RED YELH1BLU

(460 VAC)

HT01AH850

COMPRESSOR 1

CONTACTOR

11 21

CONNECTOR

GND

33 44

230 VAC

1 PHASE

SECONDARY

230VAC

4-PIN PLUG

GREEN

GRAY

BLACK

BLUE

FIELD SUPPLIED WIRING

BROWN

GREEN/ YELLOW

BROWN

GREEN/ YELLOW

FAN 1

FAN 2

BLACK

LT. BLUE

BLACK

BLUE

BLACK

LT. BLUE

BLACK

BLUE

24 VAC

3-PIN

CONNECTOR

PLUG

ORANGE

YELLOW

BROWN

1 2 3

Fig. 34 — Wiring Diagram for Power Exhaust System

CONTROL BOX/BURNER ACCESS PANEL

INDOOR FAN MOTOR ACCESS PANEL AND BLOWER

Fig. 35 — Typical Access Panel Locations (Standard Efficiency Unit Shown)

Page 18

SUPPLY AIR

Fig. 37 — EconoMi$er Control Adjustment

Potentiometers (Factory Settings)

Fig. 38 — Barometric Relief Capacity

TEMPERATURE SENSOR MOUNTING LOCATION

SUPPLY AIR TEMPERATURE SENSOR

Fig. 36 — Supply-Air Sensor Placement

Control Setup — If a CO2 sensor is not being used, pro-

ceed to the next section. If a CO

sensor is being used, perform

the following:

1. Determine th e value at which you want the minimum position of the dampers to begin opening to allow a greater amount of outdoor air to enter. The range is 800 to 1,400 ppm.

2. Locate the CO the desired set point. See Fig. 37.

Mechanical Cooling Lockout

SP (PPM) potentiometer and adjust to

— Determine the outdoor-air temperature at which you want the mechanical cooling (compressors) to be disabled. Locate the mechanical cooling lockout (MECH CLG LOCKOUT) potentiometer. To disable this feature, turn the potentiometer counterclockwise (CCW) to the OFF position. Otherwise, set the value between 10 and 60 F. Mechanical cooling will not operate when the outdoor air temperature is below this value. See Fig. 37.

Dry Bulb Changeover Set Up

— Determine the dry bulb changeover set point from T able 3. The settings are A, B, C and D. Locate the ECON SP potentiometer and set the dry bulb changeover set point. See Fig. 37. When the OAT is above this set point, the damper is limite d to minimum position setting.

Ventilation Air (Minimum Position Set Up)

— If ventilation air is not required, proceed to Step 5. If ventilation air is required, perform the following:

1. The indoor fan must be on to set the ventilation air. Either put the thermostat in the continuous fan mode or jumper the R and G terminals at the rooftop unit connection board.

2. Locat e the minimum p osition (MIN POS ) potent iometer. Turn the potentiometer full CCW to fully close the outdoor air dampers. Turn the potentiometer gradually clockwise (CW) to the desired position. See Fig. 37.

3. Replace the filter access panel. See Fig. 26. Ensure the filter access panel slides along the tracks and is securely engaged.

4. Calculate the minimum airflow across the EconoMi$er.

a. Calculate % of outside air using the following

formula. % Outdoor air through EconoMi$er

% Outdoor air =

Mixture T emp – Return Air Temp Outdoor T emp – Return Air Temp

b. Divide total CFM by percentage outdoor air, this

gives outdoo r air volume in CFM.

5. Turn on ba se unit power. NOTE: The EconoMi$er begins operation three min-

utes after power up.

Personal Injury Hazard. Avoid possible injury by keeping fingers away from damper blades.

6. See Fig. 38 for barometric relief damper characteristics.

Table 3 — Chan

SETTINGS A B C D Dry Bulb (°F) Single Enthalpy* (Btu/lb) Differential Temperature*

(°F , Not Adjustable) Differential Enthalpy*

(Btu/lb, Not Adjustable)

*Field-installed accessory.

If a potentiometer fails, its setting will default to the values

in T able 4.

eover Set Points

73 69 66 63 27 25 24 22

2222 1111

Table 4 — Default Potentiometer Settin

POTENTIOMETER DEFAULT SETTING

SP (PPM)

MECH CLG LOCKOUT ECON SP MIN POS (%)

1,000

47°

0.5

0.4

0.3

0.2

0.1 0

STATIC PRESSURE (IN. WG)

200

400

FLOW (CUBIC FEET/MINUTE)

600 800 1000

1200

1400 1600

Page 19

Step 9 — Adjust Evaporator-F an Speed —

MOTOR MOUNTING PLATE NUTS

Fig. 40 — Belt Drive Motor Mounting

Fig. 41 — Evaporator-Fan Pulley Adjustment

Adjust evaporator-fan rpm to meet jobsite conditions. Table 5 shows fan rpm at motor pulley settings. Table 6 shows motor performance. See Table 7 for Accessory/FIOP Static Pressure. Refer to Tables 8-29 to determine fan speed settings.

DIRECT-DRI VE MOTORS — The evaporator-fan motor factory speed setting is shown on label diagram affixed to base unit. If other than factory setting is desired, refer to label diagram for motor reconnection. See Fig. 39 for direct drive motor location.

BELT-DRIVE MOTORS — Fan motor pulleys are factory set for speed shown in table 1. See Fig. 40 for belt drive motor location.

NOTE: Before adjusting fan speed, make sure the new fan speed will provide an air temperature rise range as shown in T able 1.

T o change fan speed:

1. Shut off unit power supply.

2. Loosen belt by loosening fan motor mounting nuts. See Fig. 40.

3. Loosen movable pulley flange setscrew (see Fig. 41).

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.

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.)

T o align fan and motor pulleys:

1. Loosen fan pulley setscrews.

2. Slide fan pulley along fan shaft. Make angular alignment by loosening motor from

mounting.

T o adjust belt tension:

1. Loosen fan motor mounting nuts.

2. Slide motor mounting plate away from fan scroll for proper belt tension (

/2-in. deflection with one finger).

3. T ight en motor mounting nuts.

4. Adjust bolt and tighten nut to secure motor in fixed position.

Fig. 39 — Direct Drive Motor Mounting

Page 20

Table 5 — Fan Rpm at Motor Pulley Settings*

UNIT 48TF

004† 004** 005† 005** 006† 006** 007†† 007**

*Approximate fan rpm shown.

†Indicates alternate motor and drive package.

1000 976 952 928 904 880 856 832 808 784 760 — — 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 1185 1150 1115 1080 1045 1010 975 940 905 870 835 — — 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075 1300 1260 1220 1180 1140 1100 1060 1020 980 940 900 — — 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 — — 1460 1420 1380 1345 1305 1265 1225 1185 1150 1110 1070 — — 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 — —

Table 6 — Motor Data

UNIT 48TF

004

005

006

007

LEGEND

Brake Horsepower

BHP —

*Extensive motor and electrical testing on these units ensures that the

full horsepower range of the motors can be utilized with confidence. Using your fan motors up to the horsepower ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

†Single phase/three-phase.

EVAPORATOR-FAN

MOTOR

Standard

Alternate

High Static

Standard

Alternate

High Static

Standard

Alternate

High Static

Standard

High Static

UNIT

VOLTAGE

208/230

460 1.3 575 1.3

208/230

460 2.1 575 2.1

208/230

460 3.0 575 3.0

208/230

460 1.8 575 1.8

208/230

460 2.1 575 2.1

208/230

460 3.0 575 3.0

208/230

460 3.2 575 3.2

208/230

460 3.0 575 3.0

208/230

460 3.9 575 3.9

208/230

460 3.0 575 3.0

208/230

460 3.9 575 3.9

MOTOR PULLEY TURNS OPEN

MAXIMUM ACCEPTABLE

CONTINUOUS BHP*

**Indicates high-static motor and drive package .

††Indicates standard motor and drive packag e.

0.34 440

1.00 1000

2.40 2120

0.75 850

1.00 1000

2.40 2120

1.20 1340

1.30/2.40† 2120

2.90 2562

2.40 2120

2.90 2562

NOTES:

1. All indoor-fan motors 5 hp and larger meet the minimum efficiency requirements as established by the Energy Policy Act of 1992 (EPACT) effective October 24, 1997.

2. High-static motor not available on single-phase units.

MAXIMUM ACCEPTABLE

OPERATING WATTS

MAXIMUM

AMP DRAW

2.8

4.9

6.0

3.5

4.9

6.0

5.9

10.1/6.7†

8.6

6.7

8.6

Table 7 — Accessory/FIOP Static Pressure* (in. wg) — 48TF004-007

COMPONENT

Durablade Economizer EconoMi$er

LEGEND

Factory-Installed Option

FIOP —

900 1200 1400 1600 1800 2000 2200 2400 2600 3000

0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05

0.05 0.09 0.13 0.17 0.22 0.27 0.32 0.39 0.45 0.53

CFM

*The static pressure must be added to external static pressure. The sum

and the evaporator entering-air cfm should then be used in conjunction with the Fan Performance tables to determine blower rpm and watts.

Page 21

Table 8 — Fan Performance 48TF004 — Vertical Discharge Units, Standard Motor

48TF004 (3 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

LEGEND

Bhp — Esp — FIOP —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See

Brake Horsepo wer Input to Fan External Static Pressure (in. wg) Factory-Installed Option

Table 7 for accessory/FIOP static pressure information.

Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts

0.49 0.21 253 0.50 0.23 277 0.51 0.26 307 0.55 0.31 363

0.42 0.23 270 0.43 0.25 292 0.43 0.27 321 0.51 0.32 374

0.37 0.24 287 0.38 0.26 307 0.39 0.28 335 0.46 0.33 385

0.33 0.26 304 0.33 0.27 323 0.34 0.29 349 0.40 0.34 397

0.27 0.27 321 0.28 0.29 338 0.28 0.31 364 0.34 0.34 408

0.20 0.29 338 0.23 0.30 354 0.25 0.32 378 — — —

0.16 0.30 355 0.18 0.31 369 0.20 0.33 392 — — —

208 V 230, 460, 575 V 208 V 230, 460, 575 V

Low Speed High Speed

Table 9 —Fan Performance 48TF004 — Vertical Discharge Units, Alternate Motor

48TF004 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1000 644 0.19 189 709 0.22 219 1100 687 0.22 219 746 0.26 259 1200 733 0.26 259 1300 754 0.29 288 1400 1500

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

900 581 0.12 119 673 0.18 179 736 0.22 219

0.1 0.2 0.3 0.4 0.5 0.6

785 0.32 318 843 0.35 348 903 0.41 408 960 0.47 467 994 0.50 497

810 0.35 348 868 0.45 448 937 0.51 507 984 0.57 567 841 0.42 418 911 0.53 527 985 0.61 607

826 0.38 378 891 0.43 428 942 0.48 477 991 0.53 527

External Static Pressure (in. wg)

782 0.28 279 835 0.30 298 900 0.35 348 937 0.38 378 806 0.30 298 867 0.35 348 929 0.40 398 964 0.40 398

2. 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 6 — Motor Data for additional information.

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

805 0.25 249 865 0.29 288 911 0.34 338

1029 0.66 656 1073 0.72 716 1109 0.77 766

1032 0.62 617 1067 0.67 666

1047 0.60 597

48TF004 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1000 1100 1013 0.49 487 1068 0.55 547 1091 0.61 577 1109 0.66 607 1127 0.73 637 1145 0.80 666 1200 1045 0.56 557 1090 0.64 637 1109 0.68 647 1156 0.73 676 1203 0.81 706 1250 0.86 736 1300 1075 0.64 637 1122 0.70 696 1152 0.76 716 1190 0.82 756 1228 0.87 796 1266 0.94 836 1400 1110 0.73 726 1160 0.78 766 1181 0.83 806 1237 0.88 845 1293 0.94 885 1349 0.99 925 1500 1150 0.78 816 1190 0.84 855 1225 0.89 895 1271 0.95 945 1317 1.00 995

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 760 to 1000 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. indicates field-supplied motor and driv e are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

900

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

0.7 0.8 0.9 1.0 1.1 1.2

957 0.39 388 988 0.43 428 992 0.44 438

indicates field-supplied drive is required.

1039 0.49 487 1061 0.55 507 1088 0.60 547 1111 0.66 587 1136 0.72 627

External Static Pressure (in. wg)

1039 0.47 448 1061 0.51 487 1083 0.54 527 1105 0.58 567

1383 1.05 1044

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 1.0 and the maximum continuous watts are 1000. 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 6 — Motor Data for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

Page 22

Table 10 — Fan Performance 48TF004 — Vertical Discharge Units, High-Static Motor

48TF004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

900 673 0.18 179 805 0.25 249 911 0.34 338 988 0.43 428 1061 0.47 487 1000 709 0.22 219 835 0.30 298 937 0.38 378 1039 0.49 487 1100 746 0.26 259 867 0.35 348 964 0.40 398 1068 0.55 547 1200 785 0.32 318 903 0.41 408 994 0.50 497 1300 826 0.38 378 942 0.48 477 1047 0.60 597 1400 868 0.45 448 984 0.57 567 1067 0.67 666 1500 911 0.53 527 1029 0.66 656

48TF004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1075 to 1455 rpm. All other rpms require a field-

supplied drive.

NOTES:

Boldface

2. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1105 0.57 567 1140 0.63 622 1170 0.68 674 1198 0.73 723 1224 0.77 771 1136 0.63 627 1172 0.69 688 1203 0.75 745 1232 0.80 799 1258 0.86 852 1145 0.67 666 1181 0.73 731 1213 0.80 792 1242 0.85 850 1268 0.91 906 1210 0.74 736 1248 0.81 808 1282 0.88 875 1312 0.94 939 1340 1.01 1000 1266 0.84 836 1306 0.92 917 1341 1.00 993 1373 1.07 1066 1402 1.14 1136 1349 0.93 925 1391 1.02 1015 1492 1.11 1100 1383 1.05 1044 1426 1.15 1146

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

External Static Pressure (in. wg)

1086 0.55 547

1090 0.64 637 1156 0.68 676 1122 0.70 696 1190 0.76 756

1109 0.77 766 1190 1.00 855 1271 0.95 945

External Static Pressure (in. wg)

1465 1.25 1242 1500 1.34 1332 1532 1.43 1419

3. Maximum continuous bhp is 2.4 and the maximum continuous watts are 2120. 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 6 — Motor Data for additional information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

5. Interpolation is permissible . Do not extrapola te.

1160 0.84 766 1237 0.85 845

1463 1.19 1180 1494 1.26 1257

1109 0.61 607

Table 11 — Fan Performance 48TF005 — Vertical Discharge Units, Standard Motor

48TF005 (4 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

LEGEND

Bhp — Esp — FIOP —

NOTES:

Brake Horsepower Input to Fan External Static Pressure (in. wg) Factory-Installed Option

1. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts

0.68 0.41 458 0.74 0.45 506 0.74 0.51 572 0.85 0.56 632

0.61 0.42 471 0.67 0.46 521 0.66 0.52 589 0.78 0.58 651

0.53 0.45 503 0.59 0.49 556 0.59 0.54 616 0.70 0.60 681

0.45 0.47 536 0.51 0.52 593 0.52 0.56 631 0.63 0.62 698

0.36 0.49 557 0.42 0.54 616 0.45 0.58 654 0.56 0.64 723

0.26 0.52 584 0.32 0.57 646 0.37 0.60 678 0.48 0.66 750

0.15 0.54 610 0.22 0.60 674 0.30 0.62 698 0.41 0.68 772

0.04 0.56 629 0.11 0.62 696 0.23 0.64 720 0.34 0.70 796 ——————0.160.667440.260.73823

208 V 230, 460, 575 V 208 V 230, 460, 575 V

Low Speed High Speed

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

Page 23

Table 12 — Fan Performance 48TF005 — Vertical Discharge Units, Alternate Motor

48TF005 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1200 596 0.20 210 665 0.25 263 722 0.31 320 779 0.36 378 872 0.48 504 915 0.54 567 957 0.60 630 1300 633 0.24 252 699 0.30 315 754 0.36 378 809 0.42 441 902 0.55 578 943 0.61 641 984 0.67 704 1400 6720.303157350.36378 7880.42441 840 0.48 504 933 0.62 651 972 0.69 720 1011 0.75 788 1500 7110.353687700.42441 8220.49510 873 0.55 578 963 0.69 725 1002 0.77 804 1041 0.84 858 1600 751 0.42 441 835 0.49 515 871 0.56 588 907 0.63 662 993 0.77 787 1033 0.85 869 1072 0.93 950 1700 791 0.49 515 873 0.57 599 907 0.65 678 941 0.72 757 1024 0.87 889 1064 0.96 976 1800 831 0.58 609 881 0.66 693 929 0.74 772 976 0.81 851 1057 0.97 991 1900 872 0.67 704 919 0.75 788 965 0.84 877 1011 0.92 967 2000 913 0.77 809 958 0.86 904 1002 0.95 993

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

External Static Pressure (in. wg)

1046 1.03 1082 1125 1.21 1237 1160 1.30 1323 1195 1.38 1410

1091 1.08 1104 1127 1.17 1191 1162 1.25 1277

1095 1.06 1078 1132 1.14 1165

1103 1.04 1063

48TF005 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 993 0.65 678 1028 0.69 725 1056 0.72 751 1083 0.74 778 1134 0.80 935 1185 0.88 965 1331 0.99 1000 1300 1021 0.74 772 1058 0.80 841 1090 0.85 888 1121 0.89 935 1171 0.94 988 1219 1.00 999 1400 1049 0.82 837 1086 0.89 885 1120 0.96 950 1153 1.00 976 1500 1077 0.92 922 1113 0.99 985 1600 1107 1.00 998 1700 1800 1900 2000

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option Watts — Input Watts to Motor

*Motor drive range is 8 35 to 11 85 r pm. All o ther r p ms requ ire a fi eld-sup plied

drive.

NOTES:

1. Bol dface indicates field-supplied drive is required.

2. indicates field-supplied motor and drive are required.

0.9 1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1137 1.12 1128 1171 1.20 1194 1203 1.29 1278 1235 1.37 1310 1296 1.53 1463 1354 1.70 1605 1407 1.84 1738 1167 1.23 1239 1202 1.32 1313 1233 1.41 1398 1263 1.49 1425 1323 1.67 1597 1381 1.85 1747 1436 2.02 1907 1197 1.35 1360 1232 1.45 1442 1263 1.54 1532 1294 1.63 1559 1351 1.81 1731 1408 2.00 1889 1463 2.19 2068 1229 1.48 1491 1262 1.58 1572 1294 1.68 1671 1325 1.78 1702 1362 1.97 1884 1436 2.16 2040 1489 2.36 2229

1141 1.09 1084 1174 1.17 1134 1207 1.25 1196 1269 1.40 1339 1326 1.54 1454 1376 1.65 1558

1147 1.06 1054 1180 1.13 1081 1241 1.27 1215 1295 1.37 1294 1339 1.43 1350

External Static Pressure (in. wg)

1210 1.12 1071 1257 1.17 1105 1307 1.25 1190

3. Values include losses for filters, un it casing , and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 1.0 and th e ma ximum continuo us wa tts ar e

1000. Extensive motor and ele ctr i ca l testi n g o n th ese units ensures that the full range of t he motor can be ut ilized with confiden ce. Using your fan motors up to the wattage ratings sh own will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Table 6 — Motor Data for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible. Do not extrapolate.

1268 1.10 1029

Table 13 — Fan Performance 48TF005 — Vertical Discharge Units, High-Static Motor

48TF005 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1200 665 0.25 263 779 0.36 378 872 0.48 504 957 0.60 630 1028 0.69 725 1300 699 0.30 315 809 0.42 441 902 0.55 578 984 0.67 704 1058 0.80 841 1400 735 0.36 378 840 0.48 504 933 0.62 651 1011 0.75 788 1086 0.89 885 1500 770 0.42 441 873 0.55 578 963 0.69 725 1041 0.84 858 1113 0.99 985 1600 835 0.49 515 907 0.63 662 993 0.77 787 1072 0.93 950 1141 1.09 1084 1700 873 0.57 599 941 0.72 757 1024 0.87 889 1103 1.04 1063 1171 1.20 1194 1800 881 0.66 693 976 0.81 851 1057 0.97 991 1132 1.14 1165 1202 1.32 1313 1900 919 0.75 788 1011 0.92 967 1091 1.08 1104 1162 1.25 1277 1232 1.45 1442 2000 958 0.86 904 1046 1.03 1082 1125 1.21 1237 1195 1.38 1410 1262 1.58 1572

48TF005 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 1083 0.74 778 1134 0.80 935 1185 0.88 965 1331 0.99 1000 1374 1.09 1083 1300 1121 0.89 935 1171 0.94 988 1219 1.00 999 1268 1.10 1029 1309 1.21 1203 1400 1153 1.00 967 1210 1.12 1071 1257 1.17 1105 1307 1.25 1190 1349 1.37 1367 1500 1180 1.13 1081 1241 1.27 1215 1295 1.37 1294 1339 1.43 1350 1382 1.57 1564 1600 1207 1.25 1196 1269 1.40 1339 1326 1.54 1454 1376 1.65 1558 1420 1.81 1805 1700 1235 1.37 1310 1296 1.53 1463 1354 1.70 1605 1407 1.84 1738 1452 2.02 2013 1800 1263 1.49 1425 1323 1.67 1597 1381 1.85 1747 1436 2.02 1907 1482 2.22 2210 1900 1294 1.63 1559 1351 1.81 1731 1408 2.00 1889 1463 2.19 2068 ——— 2000 1325 1.78 1702 1362 1.97 1894 1436 2.16 2040 1489 2.36 2229 ———

LEGEND

Bhp — Brake Horsepower Input to Fan FIOP — Factory-Installed Option Watts — Input Watts to Motor

*Motor drive range is 1075 to 1455 rpm. All other rpms require a field-

supplied drive.

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

External Static Pressure (in. wg)

3. Maximum continuous bhp is 2.4 and th e ma ximum continuo us wa tts ar e

2120. Extensive motor and ele ctr i ca l testi n g o n th ese units ensures that the full range of t he motor can be ut ilized with confiden ce. Using your fan motors up to the wattage ratings sh own will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Table 6 — Motor Data for additional information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

5. Interpolation is permissible . Do not extrapola te.

Page 24

Table 14 — Fan Performance 48TF006 — Vertical Discharge Units, Standard Motor

48TF006 (5 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

LEGEND

Bhp — Esp — FIOP —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

208 V 230,460,575 V 208 V 230,460,575 V 208 V 230,460,575 V

Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts

0.69 0.67 750 1.01 0.71 791 1.00 0.70 782 1.20 0.76 845 1.22 0.79 875 1.28 0.85 949

0.49 0.70 780 0.85 0.74 824 0.85 0.74 821 1.06 0.79 883 1.09 0.82 913 1.17 0.89 988

0.29 0.73 810 0.70 0.77 857 0.70 0.77 861 0.93 0.83 921 0.97 0.85 950 1.06 0.92 1027

0.09 0.75 839 0.54 0.80 891 0.55 0.81 900 0.80 0.86 959 0.84 0.89 988 0.95 0.96 1066 — — — 0.39 0.83 924 0.40 0.84 940 0.67 0.90 997 0.72 0.92 1025 0.84 0.99 1105 — — — 0.23 0.86 957 0.25 0.88 979 0.54 0.93 1035 0.59 0.95 1063 0.73 1.03 1144 — — — 0.08 0.89 990 0.10 0.91 1018 0.41 0.96 1073 0.46 0.99 1101 0.62 1.06 1183 — — — — — — — — — 0.28 1.00 1111 0.34 1.02 1138 0.51 1.10 1222 — — — — — — — — — 0.15 1.03 1149 0.21 1.06 1176 0.40 1.13 1261 — — — — — — — — — 0.02 1.07 1187 0.09 1.09 1213 0.29 1.17 1300 ———————————————0.181.201340

Brake Horsepo wer Input to Fan External Static Pressure (in. wg) Factory-Installed Option

Low Speed Medium Spee d High Speed

Table 15 — Fan Performance 48TF006 — Vertical Discharge Units, Alternate Motor

48TF006 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 729 0.36 368 788 0.42 429 896 0.56 572 1600 770 0.42 429 826 0.49 501 1700 811 0.50 511 864 0.57 582 1800 852 0.58 593 1900 893 0.68 695 2000 2100 2200 2300 2400 2500

1019 1.02 1042 1063 1.12 1145 1144 1.30 1328 1222 1.49 1523 1294 1.70 1737 1061 1.16 1185 1104 1.26 1288 1182 1.47 1502 1258 1.65 1686 1103 1.30 1328 1145 1.41 1441 1220 1.61 1645 1293 1.80 1860 1145 1.46 1492 1186 1.57 1604 1259 1.78 1819

0.1 0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

903 0.66 674 999 0.82 838 1085 0.98 1001 1155 1.13 1155 1231 1.32 1349

942 0.76 777 1035 0.92 940 1119 1.10 1124 1191 1.26 1288 1288 1.43 1461 935 0.78 797 982 0.87 889 1070 1.04 1063 1153 1.22 1247 1227 1.40 1431 1287 1.57 1604 977 0.89 910 1022 0.99 1012 1107 1.17 1196 1187 1.35 1380 1260 1.54 1574

External Static Pressure (in. wg)

930 0.64 654 1015 0.78 797 1098 0.94 961 1173 1.11 1134 964 0.72 736 1051 0.88 899 1124 1.03 1053 1203 1.21 1237

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

981 0.69 705 1070 0.85 869 1144 1.01 1032

1323 1.72 1758

1328 1.80 1901 1393 2.07 2115 1362 2.03 2074 1426 2.26 2310

1329 2.00 2044 1397 2.22 2269

1359 1.89 1931

1460 2.45 2504

48TF006 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1600 1700 1800 1900 1329 1.64 1676 1391 1.80 1891 1448 2.05 2095 2000 1355 1.77 1809 1420 1.99 2034 1477 2.21 2258 2100 1381 1.91 1952 1449 2.14 2167 2200 1413 2.08 2126 1474 2.30 2350 2300 1449 2.26 2310 2400 2500

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 900 to 1300 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. indicates field-supplied motor and driv e are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1226 1.19 1216 1242 1.28 1308 1270 1.39 1420 1300 1.52 1553

1485 2.47 2524 — — — — — —

—————————

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

indicates field-supplied drive is required.

External Static Pressure (in. wg)

1.2 1.4 1.6

1301 1.46 1492 1380 1.69 1757

1318 1.49 1523 1392 1.78 1800 1335 1.58 1615 1408 1.80 1850 1361 1.71 1747 1423 1.91 1952

——— ———

——————

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 1.30 for single-phase units and 2.40 for 3-phase units and the maximum continuous watts are 2120. 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 6 — Motor Data for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

Page 25

Table 16 — Fan Performance 48TF006 — Vertical Discharge Units, High-Static Motor

48TF006 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 808 0.42 429 914 0.56 572 1001 0.69 705 1084 0.85 869 1168 1.01 1032 1600 846 0.49 501 950 0.64 645 1034 0.78 797 1111 0.94 961 1194 1.11 1134 1700 884 0.57 592 983 0.72 736 1068 0.88 899 1145 1.03 1053 1218 1.21 1237 1800 942 0.66 674 1018 0.82 838 1105 0.98 1001 1179 1.13 1155 1246 1.32 1349 1900 965 0.78 777 1057 0.92 940 1143 1.10 1124 1212 1.26 1288 1280 1.43 1481 2000 1008 0.87 889 1096 1.04 1063 1177 1.22 1247 1247 1.40 1431 2100 1051 0.99 1012 1136 1.17 1196 1210 1.35 1380 1284 1.54 1574 2200 1095 1.12 1145 1173 1.30 1328 1245 1.49 1523 2300 1140 1.28 1288 1210 1.47 1502 1284 1.65 1686 2400 1185 1.41 1441 1249 1.61 1645 2500 1231 1.57 1604 1289 1.78 1819

48TF006 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1199 1.19 1216 1126 1.46 1492 1250 1.69 1757 1600 1263 1.28 1308 1275 1.49 1523 1299 1.78 1800 1700 1295 1.39 1420 1800 1900 2000 2100 2200 2300 2400 2500

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1300 to 1685 rpm. All other rpms require a field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1319 1.52 1553 1389 1.71 1747 1453 1.91 1952 1494 2.15 2197 1548 2.40 2446 1343 1.64 1676 1415 1.80 1891 1478 2.05 1095 1538 2.31 2358 1594 2.57 2625 1374 1.77 1809 1438 1.99 2034 1505 2.21 2258 1566 2.49 2542 1624 2.77 2830 1409 1.91 1952 1465 2.14 2167 1533 2.45 2501 1596 2.77 2821 1442 2.08 2126 1498 2.30 2350 1568 2.64 2688 1475 2.26 2310 1554 2.64 2698 1565 2.47 2524 1649 2.89 2948 1596 2.95 3010 1682 3.45 3522 1760 3.96 4036 ——————

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

1351 1.58 1615 1352 1.80 1850 1407 2.03 2070 1459 2.26 2305

External Static Pressure (in. wg)

1300 1.57 1604

1322 1.70 1737 1380 1.89 1931

1323 1.80 1860 1389 2.03 2074 1456 2.26 2310 1363 2.00 2044 1424 2.22 2269 1500 2.45 2504

External Static Pressure (in. wg)

1627 3.03 3091 1693 3.42 3486 1755 3.81 3881 1726 3.31 3379 ——————

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 2.9 and the maximum continuous watts are 2562. 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 6 — Motor Data for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

1356 1.80 1901 1418 2.07 2115

1301 1.91 1944 1349 2.12 2164 1352 2.01 2047 1401 2.23 2280

1632 2.97 3031 1691 3.31 3375

1347 1.72 1758

1654 3.08 3141

Page 26

Table 17 — Fan Performance 48TF007 — Vertical Discharge Units, Standard Motor

48TF007 (6 TONS) — STANDARD MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1800 942 0.70 646 978 0.66 700 1063 0.82 771 1900 982 0.80 739 1023 0.78 779 2000 1022 0.91 835 1068 0.90 867 2100 1063 0.99 916 2200 2300 2400 2500 2600 2700 2800 2900 3000

48TF007 (6 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1800 1900 2000 2100 1489 1.80 1595 1567 1.99 1761 1626 2.16 1910 2200 1528 1.95 1726 1603 2.17 1919 1666 2.37 2093 2300 1561 2.13 1884 1637 2.35 2076 2400 1584 2.28 2015 2500 2600 2700 2800 2900 3000

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1070 to 1460 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. indicates field-supplied motor and driv e are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1104 1.13 1039 1159 1.15 1081 1214 1.28 1148 1310 1.52 1353 1375 1.63 1447 1459 1.80 1595 1130 1.26 1156 1202 1.29 1140 1248 1.38 1233 1358 1.69 1499 1410 1.72 1526 1174 1.37 1258 1237 1.41 1224 1292 1.55 1378 1392 1.81 1604 1460 1.90 1683 1201 1.48 1361 1272 1.53 1335 1335 1.71 1517 1427 1.94 1718 1246 1.62 1491 1320 1.68 1482 1368 1.81 1604 1458 2.06 1823 1285 1.75 1613 1361 1.82 1595 1400 1.91 1691 1304 1.87 1726 1402 1.95 1639 1439 2.08 1840 1345 2.07 1910 1446 2.16 1814 1378 2.26 2084

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

0.1 0.2 0.4 0.6 0.8 1.0

1115 1.00 998 1180 1.17 1056 1261 1.35 1207 1340 1.53 1361 1428 1.66 1473

1489 2.36 2032

External Static Pressure (in.wg)

1.2 1.4 1.6

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1395 1.46 1301 1430 1.58 1404 1459 1.67 1482

1633 2.53 2232 1698 2.72 2405 — — — 1675 2.77 2436 ——————

————————— ————————— ————————— —————————

indicates field-supplied drive is required.

1475 1.56 1387 1542 1.71 1517 1504 1.69 1499 1556 1.82 1613 1532 1.82 1613 1588 1.97 1744

1671 2.55 2249 1756 2.70 2467

External Static Pressure (in. wg)

1097 0.91 843 1175 1.11 1006 1266 1.29 1156 1356 1.47 1310 1132 1.01 924 1218 1.23 1106 1303 1.41 1258 1397 1.52 1353

1477 2.16 1989

1529 2.52 2223 1598 2.73 2444 ——————

1710 2.54 2272

1147 0.97 891 1248 1.20 1081 1322 1.33 1190

1488 1.93 1709

1518 2.16 1910 1575 2.35 2076

1562 2.42 2136 1620 2.59 2283

1490 2.19 1936

1543 2.43 2145 1642 2.86 2512 — — —1585 2.65 2335 ——————

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 2.40 and the maximum continuous watts are 2120. 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 6 — Motor Data for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

1602 2.64 2326 1666 2.85 2504

1532 2.14 1892

Page 27

Table 18 — Fan Performance 48TF007 — Vertical Discharge Units, High-Static Motor

48TF007 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1800 978 0.66 700 1063 0.82 771 1147 0.97 891 1248 1.20 1081 1900 1023 0.78 779 1097 0.91 843 1175 1.11 1006 1266 1.29 1156 2000 1068 0.90 867 1132 1.01 924 1218 1.23 1106 2100 1115 1.00 988 1180 1.17 1056 1261 1.35 1207 2200 1159 1.15 1081 1214 1.28 1148 2300 1202 1.29 1140 1248 1.38 1233 2400 1237 1.41 1224 1292 1.55 1378 2500 1272 1.53 1335 2600 2700 2800 2900 3000

48TF007 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1300 to 1685 rpm. All other rpms require a field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and driv e are required.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1320 1.68 1482 1368 1.81 1604 1458 2.06 1823 1562 2.42 2136 1620 2.59 2283 1361 1.82 1595 1400 1.91 1691 1490 2.19 1936 1602 2.64 2326 1666 2.85 2504 1402 1.95 1639 1439 2.08 1840 1543 2.43 2145 1642 2.86 2512 1446 2.16 1814 1477 2.16 1989 1585 2.65 2335 1489 2.36 2032 1529 2.52 2223 1598 2.73 2444

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1395 1.46 1301 1475 1.56 1387 1542 1.71 1517 1607 1.94 1761 1667 2.16 1967 1430 1.58 1404 1504 1.69 1499 1556 1.82 1613 1621 2.06 1874 1682 2.30 2093 1459 1.67 1482 1532 1.82 1613 1588 1.97 1744 1655 2.23 2029 1489 1.80 1595 1567 1.99 1761 1626 2.16 1910 1528 1.95 1726 1603 2.17 1919 1666 2.37 2093 1561 2.13 1884 1637 2.35 2076 1584 2.28 2015 1671 2.55 2249 1633 2.53 2232 1675 2.77 2436 1776 3.45 3141 ————————————

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1335 1.71 1517 1427 1.94 1718 1518 2.16 1910 1575 2.35 2076

1.2 1.4 1.6 1.8 2.0

1698 2.72 2405

1768 3.26 2964 —————————

——————————————— ——————————————— ———————————————

External Static Pressure (in. wg)

1303 1.41 1258 1397 1.52 1353

1310 1.52 1353 1375 1.63 1447 1459 1.80 1595 1358 1.69 1499 1410 1.72 1526 1488 1.93 1709 1392 1.81 1604 1460 1.90 1683 1532 2.14 1892

External Static Pressure (in. wg)

1710 2.54 2272 1782 2.87 2616 1756 2.70 2467

1779 3.13 2848 ——————

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

1340 1.53 1361 1428 1.66 1473

1753 3.58 3262 — — — 1767 3.69 3360 — — —

1694 2.44 2224 1758 2.73 2485 1736 2.68 2441

——————

1322 1.33 1190 1356 1.47 1310

1775 3.62 3290

1717 2.49 2266

——— ———

Page 28

Table 19 — Fan Performance 48TF004 — Horizontal Discharge Units, Standard Motor

48TF004 (3 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

LEGEND

Bhp — Esp — FIOP —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See

Brake Horsepo wer Input to Fan External Static Pressure (in. wg) Factory-Installed Option

Table 7 for accessory/FIOP static pressure information.

Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts

0.54 0.21 253 0.57 0.23 277 0.55 0.26 307 0.60 0.31 363

0.49 0.23 270 0.51 0.25 292 0.52 0.27 321 0.53 0.32 374

0.43 0.24 287 0.45 0.26 307 0.46 0.28 335 0.49 0.33 385

0.39 0.26 304 0.40 0.27 323 0.38 0.29 349 0.43 0.34 397

0.33 0.27 321 0.35 0.29 338 0.35 0.31 364 0.36 0.34 408

0.26 0.29 338 0.28 0.30 354 0.29 0.32 378 — — —

0.21 0.30 355 0.23 0.31 369 0.24 0.33 392 — — —

208 V 230, 460, 575 V 208 V 230, 460, 575 V

Low Speed High Speed

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

Table 20 — Fan Performance 48TF004 — Horizontal Discharge Units, Alternate Motor

48TF004 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1000 570 0.09 109 627 0.13 149 738 0.19 189 1100 614 0.13 149 670 0.16 189 758 0.23 229 1200 658 0.16 189 710 0.23 229 1300 703 0.20 239 752 0.27 269 1400 725 0.29 288 1500 755 0.33 328

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

900 526 0.06 70 584 0.08 99 656 0.12 139 734 0.22 219

0.1 0.2 0.3 0.4 0.5 0.6

7760.313088450.383788910.424189370.474679830.51507 816 0.38 378 870 0.43 428 924 0.48 477 969 0.53 527 1014 0.58 577

External Static Pressure (in. wg)

8000.262598480.292888950.31308

7800.282798400.323188890.363589380.40398

8080.323188680.373689160.414089630.45448

8120.292888630.323089140.35348

8180.252698750.27269

48TF004 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1000 1100 1200 1300 1012 0.51 507 1061 0.56 557 1094 0.61 607 1172 0.65 647 1239 0.69 716 1306 0.72 786 1400 1027 0.56 557 1071 0.60 597 1108 0.67 666 1208 0.70 706 1278 0.75 786 1347 0.79 865 1500 1056 0.63 627 1097 0.68 676 1117 0.70 696 1245 0.74 776 1315 0.80 865 1385 0.85 955

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 760 to 1000 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. Values include losses for filters, unit casing, and wet coils. See

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

900

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

Table 7 for accessory/FIOP static pressure information.

0.7 0.8 0.9 1.0 1.1 1.2

924 0.32 308 953 0.35 348 989 0.38 388 936 0.35 348 977 0.39 388 960 0.39 388 988 0.45 448

indicates field-supplied drive is required.

1005 0.43 428 1052 0.49 487 1100 0.52 527 1163 0.56 587 1225 0.60 647 1038 0.50 497 1076 0.53 527 1136 0.59 577 1201 0.61 647 1266 0.64 716

External Static Pressure (in. wg)

1020 0.44 438 1064 0.48 477 1124 0.52 537 1185 0.55 597

1028 0.42 438 1074 0.45 487 1120 0.50 537

3. Maximum continuous bhp is 1.00 and maximum continuous watts are 1000. 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 6 — Motor Data for additional information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

5. Interpolation is permissible . Do not extrapola te.

Page 29

Table 21 — Fan Performance 48TF004 — Horizontal Discharge Units, High-Static Motor

48TF004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

900 584 0.08 99 734 0.22 219 875 0.27 269 953 0.36 348 1028 0.42 438 1000 627 0.13 149 800 0.26 259 895 0.31 308 977 0.39 388 1064 0.48 477 1100 670 0.16 189 812 0.29 288 914 0.35 348 1005 0.43 428 1200 710 0.23 229 840 0.32 318 938 0.40 398 1038 0.50 497 1300 752 0.27 269 868 0.37 368 963 0.45 448 1061 0.56 557 1400 776 0.31 308 891 0.42 418 983 0.51 507 1071 0.60 597 1500 816 0.38 378 924 0.48 477 1014 0.58 577

48TF004 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

900 1000 1100 1200 1300 1400 1500

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1075 to 1455 rpm. All other rpms require a field-

supplied drive.

NOTES:

Boldface

2. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1120 0.54 537 1155 0.59 589 1186 0.64 639 1215 0.69 685 1240 0.73 730 1185 0.60 597 1222 0.66 655 1255 0.71 709 1285 0.77 761 1312 0.82 811 1225 0.65 647 1263 0.71 709 1298 0.77 769 1328 0.83 825 1357 0.88 879 1266 0.72 716 1306 0.79 786 1341 0.86 851 1373 0.92 914 1402 0.98 973 1306 0.79 786 1347 0.87 862 1383 0.94 934 1416 1.01 1003 1446 1.07 1068 1347 0.87 865 1389 0.95 950 1427 1.03 1029 1385 0.96 955 1428 1.05 1048

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

External Static Pressure (in. wg)

1000 0.52 527 1136 0.59 577 1172 0.65 647

1097 0.68 676 1245 0.74 776

External Static Pressure (in. wg)

1467 1.14 1135 1502 1.22 1218 1534 1.30 1298

3. Maximum continuous bhp is 2.4 and maximum continuous watts are 2120. 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 6 — Motor Data for additional information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

5. Interpolation is permissible . Do not extrapola te.

1461 1.11 1104 1492 1.18 1176

1208 0.70 706

Page 30

Table 22 — Fan Performance 48TF005 — Horizontal Discharge Units, Standard Motor

48TF005 (4 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

LEGEND

Bhp — Esp — FIOP —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See

Brake Horsepo wer Input to Fan External Static Pressure (in. wg) Factory-Installed Option

Table 7 for accessory/FIOP static pressure information.

Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts

0.75 0.41 458 0.81 0.45 506 0.87 0.51 572 0.92 0.56 632

0.68 0.42 471 0.74 0.46 521 0.79 0.52 589 0.85 0.58 651

0.60 0.45 503 0.66 0.49 556 0.71 0.54 616 0.77 0.60 681

0.51 0.47 536 0.58 0.52 593 0.64 0.56 631 0.70 0.62 698

0.42 0.49 557 0.49 0.54 616 0.56 0.58 654 0.63 0.64 723

0.32 0.52 584 0.39 0.57 646 0.48 0.60 678 0.55 0.66 750

0.21 0.54 610 0.29 0.60 674 0.41 0.62 698 0.48 0.68 772

0.09 0.56 629 0.18 0.62 696 0.33 0.64 720 0.41 0.70 796 — — — 0.06 0.65 731 0.26 0.66 744 0.33 0.73 823

208 V 230, 460, 575 V 208 V 230, 460, 575 V

Low Speed High Speed

Table 23 — Fan Performance 48TF005 — Horizontal Discharge Units, Alternate Motor

48TF005 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1200 569 0.18 189 641 0.23 242 701 0.29 299 761 0.34 357 1300 604 0.22 231 673 0.28 294 731 0.34 352 788 0.39 410 1400 640 0.27 284 705 0.33 347 761 0.39 410 817 0.45 473 1500 676 0.32 336 738 0.38 399 793 0.45 468 1600 713 0.38 399 772 0.44 462 825 0.51 536 1700 750 0.45 473 806 0.51 536 1800 788 0.52 546 1900 826 0.60 630 2000

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

857 0.59 615 908 0.66 693 997 0.81 851 1037 0.90 940 841 0.59 620 890 0.67 704 939 0.75 788 1026 0.91 956 876 0.68 714 924 0.76 799 971 0.84 883

864 0.70 735 912 0.77 809 958 0.86 898 1004 0.94 988

External Static Pressure (in. wg)

847 0.51 536 940 0.65 683 982 0.73 767 1024 0.81 851 877 0.58 609 967 0.73 767 1009 0.81 851 1051 0.89 935

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

859 0.46 483 901 0.52 546 943 0.58 609 887 0.52 546 928 0.59 615 968 0.65 683 914 0.59 620 955 0.66 688 996 0.72 757

1056 1.01 1061 1094 1.10 1151 1132 1.18 1240

1065 1.01 1040 1104 1.07 1124

1087 1.12 1177 1125 1.21 1271 1162 1.30 1366

1077 1.01 1030

48TF005 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 835 to 1185 rpm. All other rpms require a field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and driv e are required.

0.9 1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

987 0.64 652 1030 0.70 695 1068 0.79 792 1106 0.87 889 1134 0.98 998 1006 0.71 709 1044 0.77 736 1086 0.84 833 1128 0.91 930 1033 0.79 797 1069 0.86 838 1104 0.93 925 1060 0.88 891 1095 0.95 930 1087 1.01 1001 1123 1.05 1073 1156 1.13 1150 1185 1.20 1226 1250 1.35 1291 1319 1.51 1444 1382 1.68 1607 1114 1.07 1108 1151 1.15 1185 1183 1.23 1262 1215 1.31 1339 1276 1.48 1415 1334 1.64 1569 1398 1.80 1722 1141 1.17 1221 1178 1.26 1318 1211 1.35 1390 1243 1.43 1461 1303 1.61 1540 1359 1.78 1702 1418 1.95 1865 1168 1.28 1371 1204 1.37 1502 1238 1.47 1548 1271 1.56 1594 1330 1.74 1664 1386 1.93 1846 1439 2.11 2018 1197 1.39 1485 1231 1.48 1604 1265 1.59 1666 1298 1.69 1727 1358 1.89 1808 1413 2.08 1989 1466 2.27 2171

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

1129 1.02 1022 1162 1.09 1114 1228 1.24 1186 1303 1.40 1339 1343 1.60 1530

External Static Pressure (in. wg)

1139 1.01 1012 1218 1.14 1090 1286 1.34 1282 1320 1.48 1463

3. Values include losses for filters, unit casing, and wet coils. See

4. Maximum continuous bhp is 1.00 and the maximum continuous

5. Use of a field-supplied motor may affect wire sizing. Contact your

6. Interpolation is permissible . Do not extrapola te.

1183 1.10 1052 1226 1.23 1215 1297 1.35 1406

Table 7 for accessory/FIOP static pressure information. watts are 1000. 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 6 — Motor Data for additional information.

Carrier representative for details.

1189 1.12 1138 1245 1.21 1358

Page 31

Table 24 — Fan Performance 48TF005 — Horizontal Discharge Units, High-Static Motor

48TF005 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1200 641 0.23 242 761 0.34 357 859 0.46 483 943 0.58 609 1030 0.70 695 1300 673 0.28 294 788 0.39 410 887 0.52 546 968 0.65 683 1044 0.77 736 1400 705 0.33 347 817 0.45 473 914 0.59 620 996 0.72 757 1069 0.86 838 1500 738 0.38 399 847 0.51 536 940 0.65 683 1024 0.81 851 1600 772 0.44 462 877 0.58 609 967 0.73 767 1051 0.89 935 1700 806 0.51 536 908 0.66 693 997 0.81 851 1800 841 0.59 620 939 0.75 789 1026 0.91 956 1900 876 0.68 714 971 0.84 883 1056 1.01 1061 2000 912 0.77 809 1004 0.94 988

48TF005 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1200 1300 1400 1500 1600 1700 1800 1900 2000

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1075 to 1455 rpm. All other rpms require a field-

supplied drive.

NOTES:

Boldface

2. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1106 0.87 889 1134 0.98 998 1189 1.12 1138 1245 1.21 1358 1292 1.35 1345 1128 0.91 930 1183 1.10 1052 1226 1.23 1215 1297 1.35 1406 1346 1.51 1500 1139 1.01 1012 1218 1.14 1090 1286 1.34 1282 1320 1.48 1463 1370 1.65 1645 1162 1.09 1114 1228 1.24 1186 1303 1.40 1339 1343 1.60 1530 1393 1.79 1778 1185 1.20 1226 1250 1.35 1291 1319 1.51 1444 1382 1.68 1607 1434 1.88 1867 1215 1.31 1339 1276 1.48 1415 1334 1.64 1569 1389 1.80 1722 1451 2.01 2001 1243 1.43 1461 1303 1.61 1540 1359 1.78 1702 1418 1.95 1865 1271 1.56 1594 1330 1.74 1664 1386 1.93 1846 1439 2.11 2018 1298 1.69 1727 1358 1.89 1808 1413 2.08 1989

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

1.2 1.4 1.6 1.8 2.0

External Static Pressure (in. wg)

1095 0.95 930

1077 1.01 1030 1151 1.15 1185 1104 1.07 1124 1178 1.26 1318

1087 1.12 1177 1162 1.30 1366 1231 1.48 1604

External Static Pressure (in. wg)

4. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

5. Interpolation is permissible . Do not extrapola te.

1132 1.18 1240 1204 1.37 1502

1468 2.27 2171

1123 1.05 1073

1471 2.18 2167 1493 2.36 2345

———

Table 25 — Fan Performance 48TF006 — Horizontal Discharge Units, Standard Motor

48TF006 (5 TONS) — STANDARD MOTOR (DIRECT DRIVE)

Airflow

(Cfm)

1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

LEGEND

Bhp — Esp — FIOP —

NOTES:

1. Values include losses for filters, unit casing, and wet coils. See

Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts Esp Bhp Watts

0.74 0.67 750 1.06 0.71 791 1.07 0.70 782 1.27 0.76 845 1.26 0.79 875 1.33 0.85 949

0.54 0.70 780 0.90 0.74 824 0.92 0.74 821 1.13 0.79 883 1.14 0.82 913 1.22 0.89 988

0.34 0.73 810 0.75 0.77 857 0.77 0.77 861 1.00 0.83 921 1.01 0.85 950 1.11 0.92 1027

0.14 0.75 839 0.59 0.80 891 0.62 0.81 900 0.87 0.86 959 0.89 0.88 988 1.00 0.96 1066 — — — 0.44 0.83 924 0.47 0.84 940 0.74 0.90 997 0.77 0.92 1025 0.89 0.99 1105 — — — 0.28 0.86 957 0.32 0.88 979 0.61 0.93 1035 0.64 0.95 1063 0.78 1.03 1144 — — — 0.13 0.89 990 0.17 0.91 1018 0.48 0.96 1073 0.51 0.99 1101 0.67 1.06 1183 ——————0.020.951058 0.35 1.00 1111 0.39 1.02 1138 0.56 1.10 1222 —————————0.221.031149 0.26 1.06 1176 0.45 1.13 1261 —————————0.091.071187 0.14 1.09 1213 0.34 1.17 1300 ———————————————0.231.201340

Brake Horsepo wer Input to Fan External Static Pressure (in. wg) Factory-Installed Option

Table 7 for accessory/FIOP static pressure information.

Low Speed Medium Spee d High Speed

208V 230, 460, 575 V 208 V 230, 460, 575 V 208 V 230, 460, 575 V

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

Page 32

Table 26 — Fan Performance 48TF006 — Horizontal Discharge Units, Alternate Motor

48TF006 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 730 0.34 357 789 0.40 420 896 0.53 557 1600 770 0.40 420 826 0.46 483 1700 811 0.47 494 865 0.54 567 1800 852 0.55 578 1900 894 0.54 567 2000 2100 2200 2300 2400 2500

48TF006 (5 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1600 1700 1800 1303 1.48 1555 1371 1.69 1776 1433 1.90 1996 1480 2.09 2196 1900 1330 1.59 1671 1396 1.80 1902 1460 2.03 2133 1517 2.25 2364 2000 1362 1.73 1818 1422 1.94 2038 1485 2.16 2270 1544 2.40 2522 2100 1393 1.87 1965 1452 2.08 2185 1510 2.31 2427 2200 1423 2.02 2122 1483 2.24 2354 2300 1454 2.18 2291 2400 1485 2.36 2480 2500

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 900 to 1300 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. indicates field-supplied motor and driv e are required.

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

0.1 0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

905 0.62 651 1002 0.78 820 1084 0.93 977 1163 1.10 1156 1235 1.29 1355

936 0.74 778 984 0.82 862 1072 0.98 1030 1154 1.16 1219 1226 1.33 1397 1297 1.53 1608

978 0.85 893 1024 0.93 977 1108 1.10 1156 1192 1.29 1355 1259 1.47 1545 1021 0.97 1019 1064 1.05 1103 1145 1.22 1282 1225 1.43 1503 1294 1.62 1702 1064 1.10 1156 1104 1.18 1240 1183 1.36 1429 1260 1.57 1650 1107 1.24 1303 1145 1.32 1387 1222 1.45 1524 1296 1.73 1818 1150 1.39 1460 1186 1.48 1555 1262 1.68 1765

1.2 1.4 1.6 1.8

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1221 1.17 1229 1256 1.30 1366 1283 1.32 1387 1252 1.27 1334 1278 1.37 1439

1518 2.55 2679 1574 2.78 2905 1633 3.03 3134 1692 3.28 3345

indicates field-supplied drive is required.

945 0.72 757 1037 0.88 925 1119 1.04 1093 1194 1.21 1271 1266 1.40 1471

External Static Pressure (in. wg)

1311 1.45 1524 1340 1.58 1660 1330 1.61 1692 1345 1.57 1650 1397 1.76 1849 1424 1.89 1986

1515 2.41 2532 1571 2.64 2758 1623 2.88 2976 1544 2.59 2721 1604 2.84 2947 1657 3.07 3152

External Static Pressure (in. wg)

931 0.61 641 1020 0.75 788 1101 0.91 956 1178 1.09 1145 966 0.69 725 1051 0.84 883 1133 1.01 1061 1205 1.18 1240

1538 2.46 2585 1594 2.71 2821

990 0.67 704 1072 0.83 872 1153 1.00 1051

1331 1.89 1986 1400 2.12 2227 1461 2.34 2459

1303 1.22 1282

1570 2.55 2674

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

1327 1.66 1744

1330 1.78 1870 1392 1.97 2070 1365 1.94 2038 1426 2.15 2259

1359 1.80 1902

Page 33

Table 27 — Fan Performance 48TF006 — Horizontal Discharge Units, High-Static Motor

48TF006 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1500 789 0.40 420 896 0.53 557 990 0.67 704 1072 0.83 872 1153 1.00 1051 1221 1.17 1229 1600 826 0.46 483 931 0.61 641 1020 0.75 788 1101 0.91 956 1178 1.09 1145 1252 1.27 1334 1700 865 0.54 567 966 0.69 725 1051 0.84 883 1133 1.01 1061 1205 1.18 1240 1278 1.37 1439 1800 905 0.62 661 1002 0.78 820 1084 0.93 977 1163 1.10 1156 1235 1.29 1355 1900 945 0.72 757 1037 0.88 925 1119 1.04 1093 1194 1.21 1271 1266 1.40 1471 2000 984 0.82 862 1072 0.98 1030 1154 1.16 1219 1226 1.33 1397 1297 1.53 1608 2100 1024 0.93 977 1108 1.10 1156 1192 1.29 1355 1259 1.47 1545 2200 1064 1.05 1103 1145 1.22 1282 1225 1.43 1503 1294 1.62 1702 2300 1104 1.18 1240 1183 1.36 1429 1260 1.57 1650 2400 1145 1.32 1387 1222 1.45 1524 1296 1.73 1818 2500 1186 1.48 1555 1262 1.68 1765

48TF006 (5 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1500 1256 1.30 1366 1283 1.32 1387 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1300 to 1685 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. indicates field-supplied motor and driv e are required.

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

0.2 0.4 0.6 0.8 1.0 1.2

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

External Static Pressure (in. wg)

1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1311 1.45 1524 1340 1.58 1660 1330 1.61 1692 1373 1.77 1834 1345 1.57 1650 1397 1.76 1849 1424 1.89 1986 1470 2.08 2153 1371 1.69 1776 1433 1.90 1996 1480 2.09 2196 1528 2.30 2381 1396 1.80 1902 1460 2.03 2133 1517 2.25 2364 1566 2.47 2563 1422 1.94 2038 1485 2.16 2270 1544 2.40 2522 1594 2.64 2734 1452 2.08 2185 1510 2.31 2427 1570 2.55 2674 1620 2.80 2905 1483 2.24 2354 1538 2.46 2585 1594 2.71 2821 1515 2.41 2532 1571 2.64 2758 1623 2.88 2976 1544 2.59 2721 1604 2.84 2947 1574 2.78 2905

indicates field-supplied drive is required.

1633 3.03 3134 1692 3.28 3345 1746 3.61 3736

External Static Pressure (in. wg)

1303 1.48 1555 1330 1.59 1671

1327 1.66 1744 1393 1.87 1965

1330 1.78 1870 1392 1.97 2070 1454 2.18 2291

1331 1.89 1986 1400 2.12 2227 1461 2.34 2459 1518 2.55 2679

1303 1.22 1282 1345 1.34 1390

1657 3.07 3152 1710 3.38 3497

1365 1.94 2038 1426 2.15 2259 1485 2.36 2480

1645 2.98 3087 1675 3.17 3280

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

1359 1.80 1902 1423 2.02 2122

1362 1.73 1818

Page 34

Table 28 — Fan Performance 48TF007 — Horizontal Discharge Units, Standard Motor

48TF007 (6 TONS) — STANDARD MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1800 885 0.63 623 942 0.73 700 1047 0.90 835 1900 928 0.73 700 982 0.83 779 2000 971 0.84 787 1022 0.94 867 2100 1015 0.97 891 1063 1.10 998 2200 1060 1.10 998 2300 2400 2500 2600 2700 2800 2900 3000

48TF007 (6 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1800 1900 2000 2100 2200 2300 2400 1502 2.06 1823 1552 2.24 1980 2500 1524 2.24 1980 2600 1552 2.40 2119 2700 2800 2900 3000

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1070 to 1460 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. indicates field-supplied motor and driv e are required.

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

0.1 0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1104 1.25 1123 1130 1.27 1140 1196 1.37 1224 1264 1.56 1387 1340 1.66 1473 1397 1.86 1648 1138 1.30 1165 1174 1.37 1224 1245 1.57 1396 1305 1.63 1447 1373 1.84 1630 1440 1.95 1726 1183 1.43 1275 1201 1.50 1335 1284 1.65 1465 1338 1.75 1552 1402 1.99 1761 1210 1.58 1404 1246 1.67 1482 1312 1.76 1560 1366 1.96 1735 1435 2.10 1858 1254 1.76 1560 1285 1.80 1595 1354 1.95 1726 1403 2.14 1892 1274 1.82 1613 1304 1.85 1639 1374 2.12 1875 1459 2.25 1989 1318 1.95 1726 1345 2.05 1814 1412 2.32 2050 1362 2.20 1945 1378 2.30 2032 1451 2.40 2119

1.2 1.4 1.6

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1341 1.40 1250 1413 1.55 1378 1374 1.53 1361 1437 1.62 1439 1396 1.66 1473 1460 1.68 1491 1413 1.75 1552 1434 1.81 1604 1459 1.88 1665

1584 2.61 2300 1646 2.83 2487 1706 2.97 2653 1624 2.85 2504 1677 2.99 2661 — — — 1671 3.03 2725 ——————

—————————

indicates field-supplied drive is required.

1104 1.20 1081 1159 1.23 1106 1229 1.41 1258 1306 1.53 1361 1363 1.70 1508

External Static Pressure (in. wg)

1475 1.73 1534 1529 1.92 1700 1487 1.85 1639 1554 2.07 1831 1520 2.07 1831 1576 2.24 1980

1585 2.42 2136 1638 2.60 2292 1616 2.63 2317 1671 2.80 2462

External Static Pressure (in. wg)

1084 1.02 932 1160 1.11 1006 1223 1.24 1114 1301 1.38 1233 1121 1.12 1014 1188 1.22 1097 1254 1.36 1216 1329 1.44 1284 1140 1.18 1064 1196 1.27 1140 1272 1.45 1292 1354 1.58 1404

1474 1.58 1404 1490 1.67 1482 1509 1.77 1569

1604 2.42 2136

1139 1.05 956 1193 1.14 1031 1276 1.30 1165

1469 2.04 1805

1474 2.21 1954

1496 2.54 2240 1529 2.61 2300 1603 2.87 2521 1534 2.66 2343 1560 2.81 2470 1611 3.01 2648

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 2.4 and maximum continuous watts are 2120. 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 6 — Motor Data for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

1514 2.42 2136 1570 2.66 2343

1494 2.19 1936

1536 2.46 2171

Page 35

Table 29 — Fan Performance 48TF007 — Horizontal Discharge Units, High-Static Motor

48TF007 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

1800 942 0.73 700 1047 0.90 835 1139 1.05 956 1193 1.14 1031 1276 1.30 1165 1900 982 0.83 779 1084 1.02 932 1160 1.11 1006 1223 1.24 1114 2000 1022 0.94 867 1121 1.12 1014 1188 1.22 1097 1254 1.36 1216 2100 1063 1.10 998 1140 1.18 1064 1196 1.27 1140 1272 1.45 1292 2200 1104 1.20 1081 1159 1.23 1106 1229 1.41 1258 2300 1130 1.27 1140 1196 1.37 1224 1264 1.56 1387 2400 1174 1.37 1224 1245 1.57 1396 2500 1201 1.50 1335 1284 1.65 1465 2600 1246 1.67 1482 2700 1285 1.80 1595 2800 2900 3000

48TF007 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000

LEGEND

Bhp — FIOP — Watts —

*Motor drive range is 1300 to 1685 rpm. All other rpms require a field-

supplied drive.

NOTES:

2. indicates field-supplied motor and driv e are required.

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

Boldface

0.2 0.4 0.6 0.8 1.0 1.2

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1312 1.76 1560 1366 1.96 1735 1435 2.10 1858 1494 2.19 1936 1552 2.40 2119

1304 1.85 1639 1374 2.12 1875 1459 2.25 1989 1514 2.42 2136 1570 2.66 2343 1624 2.85 2504 1345 2.05 1814 1412 2.32 2050 1496 2.54 2240 1529 2.61 2300 1603 2.87 2521 1378 2.30 2032 1451 2.40 2119 1534 2.66 2343 1560 2.81 2470

1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1413 1.55 1378 1474 1.58 1404 1522 1.74 1564 1566 1.89 1704 1437 1.62 1439 1490 1.67 1482 1538 1.84 1653 1583 2.00 1801 1460 1.68 1491 1509 1.77 1569 1558 1.95 1752 1603 2.12 1909 1475 1.73 1534 1529 1.92 1700 1578 2.11 1901 1624 2.30 2070 1478 1.85 1639 1554 2.07 1831 1604 2.28 2049 1651 2.48 2232 1520 2.07 1831 1576 2.24 1980 1627 2.46 2218 1674 2.68 2415 1552 2.24 1980 1604 2.42 2136 1656 2.66 2396 1585 2.42 2136 1638 2.60 2292 1616 2.63 2317 1671 2.80 2462 1646 2.83 2487 1677 2.99 2661 1739 3.33 2998 1795 3.67 3299 — — — 1742 3.43 3090 ————————— 1764 3.95 3558 —————————

indicates field-supplied drive is required.

1354 1.95 1726 1403 2.14 1892 1474 2.21 1954 1536 2.46 2171 1584 2.61 2300

External Static Pressure (in. wg)

1706 2.97 2653 1761 3.27 2941 — — —

External Static Pressure (in. wg)

1301 1.38 1233 1374 1.53 1361 1329 1.44 1284 1396 1.66 1473

1306 1.53 1361 1363 1.70 1508 1434 1.81 1604

1305 1.63 1447 1373 1.84 1630 1440 1.95 1726 1502 2.06 1823 1338 1.75 1552 1402 1.99 1761 1469 2.04 1805 1524 2.24 1980

1691 2.86 2574

1725 3.08 2772 1775 3.35 3019

1340 1.66 1473 1397 1.86 1648 1459 1.88 1665

1704 2.90 2609

1740 3.12 2804

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible . Do not extrapola te.

1354 1.58 1404 1413 1.75 1552

1611 3.01 2648 1692 3.49 3140

1341 1.40 1250

1671 3.03 2725

Page 36

START-UP

Unit Preparation —

stalled in accordance with these installation instructions and applicable codes.

Return-Air Filters —

stalled in filter tracks. See T able 1. Do not operate unit without return-air filters.

Compressor Mounting —

spring mounted. Do not loosen or remove compressor holddown bolts.

Internal Wiring —

unit control boxes. Tighten as required.

Refrigerant Service Ports —

service ports, remove compressor access panel. Each unit system has 4 Schrader-type service gage ports: one on the suction line, one on the liquid line, and two on the compressor discharge line. Be sure that caps on the ports are tight. One Schrader-type valve is located under both the high-pressure switch and the low-pressure switch.

High Flow Valves —

and suction tubes are High Flow Valves. Large black plastic caps distinguish these valves with o-rings located inside the caps. These valves cannot be accessed for service in the field. Ensure the plastic caps are in place and tight or the possibility of refrigerant leakage could occur.

Compressor Rotation —

compressors, it is important to be certain compressor is rotating in the proper direction. To determine whether or not compressor is rotating in the proper direction:

1. Connect service gages to suction and discharge pressure fittings.

2. Energize the compressor.

3. The suction pressure should drop and the discharge pressure should rise, as is normal on any start-up.

If the suction pressure does not drop and the discharge pres-

sure does not rise to normal levels:

1. Note that the evaporator fan is probably also rotating in the wrong direction.

2. T urn of f power to the unit.

3. Reverse any two of the unit power leads.

4. Reapply power to the compressor .

The suction and discharge pressure levels should now move

to their normal start-up levels. NOTE: When the compressor is rotating in the wrong direc-

tion, the unit makes an elevated level of noise and does not provide cooling.

Cooling —

unit, turn on main power supply. Set system selector switch at COOL position and fan switch at AUTO. position. Adjust thermostat to a setting below room temperature. Compressor starts on closure of contactor.

Check unit charge. Refer to Service, Refrigerant Charge

section, page 39.

Reset thermostat at a position above room temperature. Compressor will shut off. Evaporator fan will shut off after 30-second delay.

TO SHUT OFF UNIT — Set sy st em selector switch at OFF position. Resetting thermostat at a position above room temperature shuts unit off temporarily until space temperature exceeds thermostat setting.

Set space thermostat to OFF position. To start

Make sure that unit has been in-

Make sure correct filters are in-

Compressors are internally

Check all electrical connections in

To service refrigerant

Located on the compressor hot gas

On 3-phase units with scroll

Main Burners —

Main burners are factory set and should

require no adjustment. TO CHECK ignition of main burners and heating controls,

move thermostat set point above room temperature and verify that the burners light and evaporator fan is energized. After ensuring that the unit continues to heat the building, lower the thermostat setting below room temperature and verify that the burners and evaporator fan turn off. (Fan will turn off only if fan selector switch is in the AUTO. position.)

Refer to Table 30 for the correct orifice to use at high

altitudes.

Table 30 — Altitude Compensation*

74,000 AND 115,000

BTUH NOMINAL

ELEVATION

(ft)

0-2,000

2,000 3,000 4,000 5,000 6,000 7,000 8,000

9,000 10,000 11,000 12,000 13,000 14,000

*As the height above sea level increases, there is less oxygen per

cubic foot of air. Therefore, heat input rate should be reduced at higher altitudes.

†Orifices available through your Carrier distributor.

INPUT

Natural

Gas

Orifice

Size†

33 43 30 38 34 43 30 39 35 44 31 40 36 44 32 41 36 44 33 42 37 45 34 43 37 45 35 43 38 46 36 44 39 47 37 44 41 48 38 45 43 48 39 45 44 49 40 46 44 49 41 47 45 50 42 47

Liquid

Propane

Orifice

Size†

150,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Size†

Liquid

Propane

Orifice

Size†

Heating

1. Purge gas supply line of air by opening union ahead of gas valve. If gas odor is detected, tighten union and wait 5 minutes before proceeding.

2. T urn on electrical supply and manual gas valve.

3. Set system switch selector at HEAT position and fan switch at AUTO. or ON position. Set heating temperature lever above room temperature.

4. The induced-draft motor will s tart.

5. After a call for heating, the main burners should light within 5 seconds. If the burner does not light, then there is a 22-second delay before another 5-second try. If the burner still does not light, the time delay is repeated. If the burner does not light within 15 minutes, there is a lockout. T o reset the control, break the 24-v power to W1.

6. The evaporator-fan motor will turn on 45 seconds after the burners are ignited.

7. The evaporator-fan motor will turn off 45 seconds after thermostat temperature is satisfied.

8. Adjust airflow to obtain a temperature rise within the range specified on the unit nameplate.

NOTE: The default value for the evaporator-fan motor ON/ OFF delay is 45 seconds. The Integrated Gas Unit Controller (IGC) modifies this value when abnormal limit switch cycles occur. Based upon unit operating conditions, the ON delay can be reduced to 0 seconds and the OFF delay can be extended to 180 seconds. When one flash of the LED is observed, the evaporator-fan ON/OFF delay has been modified.

Page 37

If the limit switch trips at the start of the heating cycle during the evaporator ON delay, the time period of the ON delay for the next cycle will be 5 seconds less than the time at which the switch tripped. (Example: If the limit switch trips at 30 seconds, the evaporator-fan ON delay for the next cycle will occur at 25 seconds.) To prevent short-cycling, a 5-second reduction will only occur if a minimum of 10 minutes has elapsed since the last call for heating.

The evaporator-fan OFF delay can also be modified. Once the call for heating has ended, there is a 10-minute period during which the modification can occur. If the limit switch trips during this period, the evaporator-fan OFF delay will in crease by 15 seconds. A maximum of 9 trips can occur, extending the evaporator-fan OFF delay to 180 seconds.

To restore the original default value, reset the power to the unit.

TO SHUT OFF UNIT — Set sy st em selector switch at OFF position. Resetting heating selector lever below room temperature will temporarily shut unit off until space temperature falls below thermostat sett ing.

Safety Relief —

Schrader port provides pressure relief under abnormal temperature and pressure conditions (i.e., fire in building).

Ventilation (Continuous Fan) —

selector switches at ON and OFF positions, respectively. Evaporator fan operates continuously to provide constant air circulation. When the evaporator-fan selector switch is turned to the OFF position, there is a 30-second delay before the fan turns off.

A soft solder joint at the suction se rvice

Set fan and system

Operating Sequence

COOLING, UNITS WITHOUT ECONOMIZER — When thermostat calls for cooling, terminals G and Y1 are energized, and the indoor (evaporator) fan motor (IFM), compressor, and outdoor (condenser) fan motor (OFM) start. The OFM runs continuously while the unit is in cooling. When the thermostat is satisfied, compressor contactor (C) is deenergized and the compressor and OFM shut off. After a 30-second delay, the IFM shuts off. If the thermostat fan selector switch is in the ON position, the evaporator motor will run continuously .

HEATING, UNITS WITHOUT ECONOMIZER — When the thermostat calls for heating , terminal W1 i s energized. To prevent thermostat short-cycling, the unit is locked into the Heating mode for at least 1 minute when W1 is energized. The induced-draft motor is energized and the burner ignition sequence begins. The indoor (evaporator) fan motor (IFM) is energized 45 seconds after a flame is ignited. On units equipped for two stages of heat, when additional heat is needed, W2 is energized and the high-fire solenoid on the main gas valve (MGV) is energized. When the thermostat is satisfied and W1 is deenergized, the IFM stops after a 45-second time-off delay.

COOLING, UNITS WITH DURABLADE ECONOMIZER — When the outdoor-air temperature is above the outdoor-air thermostat (OAT) setting and the room thermostat calls for cooling, compressor contactor is energized to start compressor and the outdoor (condenser) fan motor (OFM). The indoor (evaporator) fan motor (IFM) is energized and the economizer damper moves to the minimum position. After the thermostat is satisfied, there is a 30-second delay before the evaporator fan turns off. The damper then moves to the fully closed position. When using continuous fan, the damper moves to the minimum position.

When the outdoor-air temperature is below the OAT sett ing and the thermostat calls for cooling, the economizer damper moves to the minimum position. If the supply-air temperature is above 57 F, the damper continues to open until it reaches the

fully open position or until the supply-air temperature drops below 52 F .

When the supply-air temperature falls between 57 F and 52 F, the damper will remain at an intermediate open position. If the supply-air temperature falls below 52 F, the damper will modulate closed until it reaches the minimum position or until the supply air temperature is above 52 F. When the thermostat is satisfied, the damper moves to the fully closed position when using AUTO. fan or to the minimum position when using continuous fan.

If the outdoor air alone cannot satisfy the cooling requirements of the conditioned space, economizer cooling is integrated with mechanical cooling, providing two stages of cooling. Compressor and the condenser fan will be energized and the position of the economizer damper will be determined by the supply-air temperature. When the second stage of cooling is satisfied, the compressor and OFM wi ll be deenergized. The damper position will be determined by the supply-air temperature. When the first stage of cooling is satisfied, there is a 30-second delay before the evaporator fan shuts off. The damper then moves to the fully closed position. When using a continuous fan, the damper moves to the minimum position.

COOLING, UNITS WITH ECONOMI$ER — When the outdoor-air temperature (OA T) is above the ECON SP set point and the room thermostat calls for Stage 1 cooling (R to G + Y1), the indoor (evaporator) fan motor (IFM) is energized and the EconoMi$er damper modulates to minimum position. The compressor contactor is energized to start the compressor and outdoor (condenser) fan motor (OFM). After the thermostat is satisfied, the damper modulates to the fully closed position when the IF M i s dee ne r gi ze d.

When the OAT is below the ECON SP setting and the room thermostat calls for Stage 1 cooling (R to G + Y1), the EconoMi$er modulates to the minimum position when the IFM is energized. The EconoMi$er provides Stage 1 of cooling by modulating the return and outdoor air dampers to maintain a 55 F supply air set point. If the supply-air temperature (SAT) is greater than 57 F, the EconoMi$er modulates open, allowing a greater amount of outdoor air to enter the unit. If the SAT drops below 53 F, the outdoor air damper modulates closed to reduce the amount of outdoor air. When the SAT is between 53 and 57 F , the EconoMi$er maintains its posi tion.

If outdoor air alone cannot satisfy the cooling requirements of the conditioned space, and the OAT is above the MECH CLG LOCKOUT set point, the EconoMi$er integrates free cooling with mechanical cooling. This is accomplished by the strategies below .

NOTE: Compressor has a 2-minute Minimum On, Minimum Off, and Interstage delay timer.

1. If Y1 is energized, and the room thermostat calls for Y2 (2-stage thermostat), the compres sor and OFM are energized. The EconoMi$er damper is maintained at its current position.

2. If Y1 is energized for more than 20 minutes, and Y2 is not energized (whether or not a 2-stage thermostat is used), the compressor and OFM are energized. The EconoMi$er damper is maintained at its current position.

3. If Y1 is energized, and the compressor is already energized (see Step 2) and the room thermostat calls for Y2, the compressor contains to operate.

4. If the compressor is energized and the thermostat is satisfied, the compressor, the OFM, and IFM are deenergized and the EconoMi$er modulates closed.

When the OAT is below the MECH CLG LOCKOUT set

point, the compressors remain off.

Page 38

HEATING, UNITS WITH ECONOMIZER — When the thermostat calls for heating, terminal W1 is energized. To prevent thermostat short-cycling, the unit is locked into the Heating mode for at least 1 minute when W1 is energized. The induced-draft motor is energized and the burner ignition sequence begins. The indoor (evaporator) fan motor (IFM) is energized 45 seconds after a flame is ignited and the damper moves to the minimum position. On units equipped for two stages of heat, when additional heat is needed, W2 energized and the high-fire solenoid on the main gas valve (MGV) is energized. When the thermostat is satisfie d and W1 is deenergized, the IFM stops after a 45-second time-off delay. The economizer damper then moves to the fully closed position. When using continuous fan, the damper will remain in the minimum position.

SERVICE

When servicing unit, shut off all electrical power to unit and install lockout tag to avoid shock hazard or injury from rotating parts.

6. Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris. Clean the outer surfaces with a stiff brush in the normal manner.

7. Secure inner and outer coil rows together with a fieldsupplied fastener.

8. Reposition the outer coil section and remove the coil corner post from between the top panel and center post. Reinstall the coil corner post and replace all screws.

CONDENSATE DRAIN — Check and clean each year at start of cooling season. In winter, keep drain dry or protect against freeze-up.

FILTERS — Clean or replace at start of each heating and cooling season, or more often if operating conditions require it. Replacement filters must be same dimensions as original filters.

OUTDOOR-AIR INLET SCREEN — Clean screen with steam or hot water and a mild detergent. Do not use disposable filters in place of screen.

BELTS — Check belt tension at least once each heating or cooling season or as conditions require.

Cleaning —

Inspect unit interior at the beginning of heating and cooling season and as operating conditions require.

EVAPORATOR COIL

1. Turn unit power off and install lockout tag. Remove evaporator coil access panel.

2. If economizer or two-position damper is installed, remove economizer by disconnecting Molex plug and removing mounting screws. Refer to accessory economizer installation instructions or Optional Economizer sections on pages 12 and 14 for more details.

3. Slide filters out of unit.

4. Clean coil using a commercial coil cleaner or dishwasher detergent in a pressurized spray canister. Wash both sides of coil and flush with clean water. For best results, backflush toward return-air section t o remove forei gn material. Flush condensate pan after completion.

5. Reinstall economizer and filters.

6. Reconnect wiring.

7. Replace access panels.

CONDENSER COIL — Inspect coil monthly. Clean condenser coil annually, and as required by location and outdoor air conditions.

One-Row Coils (Size 004)

— Wash coil with commercial

coil cleaner. It is not necessary to remove top panel. 2-Row Coils (Sizes 005-007) Clean coil as follows:

1. T urn of f unit power and install lockout tag.

2. Remove top panel screws on condenser end of unit.

3. Remove condenser coil corner post. See Fig. 42. To hold top panel open, place coil corner post between top panel and center post. See Fig. 43.

4. Remove screws securing coil to compressor plate and compressor access panel.

5. Remove fastener holding coil sections together at return end of condenser coil. Carefully separate the outer coil section 3 to 4 in. from the inner coil section. See Fig. 44.

Fig. 42 — Cleaning Condenser Coil

Fig. 43 — Propping Up Top Panel

Page 39

Fig. 44 — Separating Coil Sections

Fig. 45 — Condenser-Fan Adjustment

Lubrication

COMPRESSORS — Each compressor is charged with the correct amount of oil at the factory.

FAN MOTOR BEAR INGS — Fan motor bearings are of the permanently lubricated type. No further lubrication is required. No lubrication of condenser or evaporator fan motors is required.

Manual Outdoor-Air Damper —

blade adjustment is required, see Manual Outdoor-Air Damper section on page 11.

Economizer Adjustment —

mizer sections on page 12 and 14.

Condenser-Fan Adjustment (Fig. 45) —

unit power supply. Remove condenser-fan assembly (grille, motor, and fan) and loosen fan hub setscrews. Adjust fan height as shown in Fig. 45. Tighten setscrews and replace condenser-fan assembly.

Refrigerant Charge —

listed on unit nameplate (also refer to Table 1). Refer to Carrier GTAC2-5 Charging, Recovery, Recycling, and Reclamation training manual and the following procedures.

Unit panels must be in place when unit is operating during

charging procedure.

Amount of refrigerant charge is

If outdoor-air damper

Refer to Optional Econo-

Shut off

NO CHARG E — Use standard evacuating te chniques. After evacuating system, weigh in the specified amount of refrigerant. (Refer to Table 1.)

LOW-CHARGE COOLING — Using Cooling Charging Charts, Fig. 46-49, vary refrigerant until the conditions of the appropriate chart are met. Note the charging charts are different from type normally used. Charts are based on charging the units to the correct superheat for the various operating conditions. Accurate pressure gage and temperature sensing device are required. Connect the pressure gage to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading. Indoor-air cfm must be within the normal operating range of the unit.

TO USE COOLING CHARGING CHART — Take the outdoor ambient temperature and read the suction pressure gage. Refer to chart to determine what suction temperature should be. If suction temperature is high, add refrigerant. If suction temperature is low, carefully recover some of the charge. Recheck the suction pressure as charge is adjusted.

EXAMPLE: (Fig. 48)

Outdoor T emperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 F

Suction Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 psig

Suction T emperature should be . . . . . . . . . . . . . . . . . . . . . 76 F

(Suction Temperature may vary 5 F.)

Flue Gas Passageways —

tor box and upper areas of the heat exchanger:

1. Remove the combustion blower wheel and motor assembly according to directions in Combustion-Air Blower section on page 42.

2. Remove the flue cover to inspect the heat exchanger.

3. Clean all surfaces as required using a wire brush.

To inspect the flue colle c-

Page 40

3 TON UNIT CHARGING CHART

SUCTION LINE TEMPERATURE (DEG. C)

-7 -1 4 10162127

100

689

621

552

483

OUTDOOR TEMP

F C 125 52

115 46 105 41 95 35 85 29 75 24 65 18 55 13 45 7

SUCTION LINE PRESSURE (PSIG)

20 30 40 50 60 70 80

SUCTION LINE TEMPERATURE (DEG. F)

414

345

SUCTION LINE PRESSURE (KILOPASCALS)

276

207

Fig. 46 — Cooling Charging Chart, 48TF004

4 TON UNIT CHARGING CHART

SUCTION LINE TEMPERATURE (DEG. C)

-7 -1 4 10162127

100

689

621

OUTDOOR TEMP

F C 125 115

52 46

105 41

95 35 85 29

SUCTION LINE PRESSURE (PSIG)

20 30 40 50 60 70 80

SUCTION LINE TEMPERATURE (DEG. F)

Fig. 47 — Cooling Charging Chart, 48TF005

552

483

414

345

276

207

45 7

SUCTION LINE PRESSURE (KILOPASCALS)

Page 41

5 TON UNIT CHARGING CHART

SUCTION LINE TEMPERATURE (DEG. C)

-7 -1 4 10 16 21 27

100

689

621

552

483

OUTDOOR

TEMP

F C 125 52

115 46 105 41 95 35 85 29

75 24 65 18 55 13

45 7

SUCTION LINE PRESSURE (PSIG)

20 30 40 50 60 70 80

SUCTION LINE TEMPERATURE (DEG. F)

Fig. 48 — Cooling Charging Chart, 48TF006

6 TON UNIT (60 Hz) CHARGING CHART

SUCTION LINE TEMPERATURE (DEG. C)

-7 -1 4 10 16 21 27

100

414

345

276

207

SUCTION LINE PRESSURE (KILOPASCALS)

689

621

552

483

OUTDOOR TEMP

F C 125 52 115 46 105 41 95 35 85 29 75 24 65 18 55 13 45 7

SUCTION LINE PRESSURE (PSIG)

20 30 40 50 60 70 80

414

345

SUCTION LINE PRESSURE (KILOPASCALS)

276

207

SUCTION LINE TEMPERATURE (DEG. F)

Fig. 49 — Cooling Charging Chart, 48TF007

Page 42

Combustion-Air Blower —

Fig. 50 — Burner Section Details

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 bimonthly to determine proper cleaning frequency.

To access burner section, slide the sliding burner partition

out of the unit.

To inspect blower wheel, shine a flashlight into draft hood opening. If cleaning is required, remove motor and wheel as follows:

1. Slide burner access panel out.

2. Remove the 7 screws that attach induced-draft motor housing to vestibule plate (Fig. 50).

3. The blower wheel can be cleaned at this point. If additional cleaning is required, continue with Steps 4 and 5.

4. To remove blower from the motor shaft, remove 2 setscrews.

5. To remove motor, remove the 4 screws that hold the motor to mounting plate. Remove the motor cooling fan by removing one setscrew. Then remove nuts that hold motor to mounting plate.

6. To reinstall, reverse the procedure outlined above.

Limit Switch —

Remove blower access panel (Fig. 7).

Limit switch is located on the fan deck.

Burner Ignition —

Unit is equipped with a direct spark ignition 100% lockout system. Integrated Gas Unit Controller (IGC) is located in the control box (Fig. 11). The IGC contains a self-diagnostic LED (light-emitting diode). A single LED on the IGC provides a visual display of operational or sequential problems when the power supply is uninterrupted. When a break in power occurs, the IGC will be reset (resulting in a loss of fault history) and the indoor (evaporator) fan ON/OFF times will be reset. The LED error code can be observed through the viewport. During servicing refer to the label on the control box cover or Table 31 for an explanation of LED error code descriptions.

If lockout occurs, unit may be reset by interrupting power

supply to unit for at least 5 seconds.

Table 31 — LED Error Code Description

Main Burners —

To access burners, remove burner access panel and slide out burner partition. At the beginning of each heating season, inspect for deterioration or blockage due to corrosion or other causes. Observe the main burner flames and adjust, if necessary.

When working on gas train, do not hit or plug orifice spuds.

REMOVAL AND REPLACEMENT OF GAS TRAIN (Fig. 50-52)

1. Shut off manual gas valve.

2. Shut off power to unit .

3. Slide out burner parti tion.

4. Disconnect gas piping at unit gas valve.

5. Remove wires connected to gas valve. Mark each wire.

6. Remove ignitor wires and sensor wires at the Integrated Gas Unit Controller (IGC) (see Fig. 11).

7. Remove the 2 screws that attach the burner rack to the vestibule plate (Fig. 50).

8. Slide the burner tray out of the unit (Fig. 51).

9. To reinstall, reverse the procedure outlined above.

CLEANING AND ADJUSTMENT

1. Remove burner rack from unit as described in Removal and Replacement of Gas Train section, above.

2. Inspect burners; if dirty, remove burners from rack.

3. Using a soft brush clean burners and cross-over port as required.

4. Adjust spark gap. See Fig. 52.

5. Reinstall burners on rack.

6. Reinstall burner rack as described in Removal and Replacement of Gas Train section, above.

Replacement Parts —

A complete list of replacement parts may be obtained from any Carrier distributor upon request.

LED INDICATION ERROR CODE DESCRIPTION

OFF

1 Flash† 2 Flashes 3 Flashes 4 Flashes 5 Flashes 6 Flashes 7 Flashes 8 Flashes

LEGEND

Light-Emitting Diode

LED —

*A 3-second pause exists between LED error code flashes. If more

than one error code exists, all applicable codes will be displayed in numerical sequence.

†Indicates a code that is not an error. The unit will continue to oper-

ate when this code is displayed.

IMPORTANT: Refer to Troubleshooting Tables 32-36 for additional information.

Normal Operation Hardware Failure Evaporator F an On/Off Delay Modified Limit Switch Fault Flame Sense Fault 4 Consecutive Limit Switch Faults Ignition Lockout Fault Induced-Draft Motor Fault Rollout Switch Fault Internal Control Fault

INDUCEDDRAFT MOTOR MOUNTING PLATE

BURNER SECTION

INDUCEDDRAFT MOTOR

MANIFOLD PRESSURE TAP

ROLLOUT SWITCH

FLUE EXHAUST

VESTIBULE PLATE

BLOWER HOUSING

GAS VALV E

Page 43

Fig. 51 — Burner Tray Details

48TFE004, 48TFD005-007 — 74,000 BTUH INPUT 48TFM004, 48TFL005-006 — 60,000 BTUH INPUT

48TFE005-007, 48TFF004 — 115,000 BTUH INPUT

48TFF005-007 — 150,000 BTUH INPUT

48TFN004, 48TFM005-006 — 90,000 BTUH INPUT

48TFN005-006 — 120,000 BTUH INPUT

LOW HEAT

MEDIUM AND HIGH HEAT

Fig. 52 — Spark Adjustment

Page 44

TROUBLESHOOTING

Table 32 — LED Error Code Service Analysis

PROBLEM CAUSE REMEDY

Hardware failure. (LED OFF)

Limit switch fault. (LED 2 flashes)

Flame sense fault. (LED 3 flashes)

4 consecutive limit switch trips. (LED 4 flashes)

Ignition lockout. (LED 5 flashes)

Induced-draft motor fault. (LED 6 flashes)

Rollout switch fault. (LED 7 flashes)

Internal control fault. (LED 8 flashes)

If the IGC must be replaced, be sure to ground yourself to dissipate any electrical charge that may be present before handling new control board. The IGC is sensitive to static electricity and may be damaged if the necessary precautions are not taken.

Loss of power to control module (IGC). Check 5 amp fuse on IGC, power to unit, 24-v circuit breaker,

High temperature limit switch is open. Check the operation of the indoor (evaporator) fan motor.

The IGC sensed flame that should not be present.

Inadequate airflow to unit. Check operation of indoor (evaporator) fan motor and that

Unit unsuccessfully attempted ignition for 15 minutes.

IGC does not sense that induced-draft motor is operating.

Rollout switch has opened. Rollout switch will automatically reset, but IGC will continue to

Microprocessor has sensed an error in the software or hardware.

and transformer. Units without a 24-v circuit breaker have an internal overload in the 24-v transformer. If the overload trips, allow 10 minutes for automatic reset.

Ensure that the supply-air temperature rise is in accordance with the range on the unit nameplate.

Reset unit. If problem persists, replace control board.

supply-air temperature rise agrees with range on unit nameplate information.

Check ignitor and flame sensor electrode spacing, gaps, etc. Ensure that flame sense and ignition wires are properly terminated. Verify that unit is obtaining proper amount of gas.

Check for proper voltage. If motor is operating, check the speed sensor plug/IGC Terminal J2 connection. Proper connection: PIN 1 — White, PIN 2 — Red, PIN 3 — Black.

lock out unit. Check gas valve operation. Ensure that induced draft blower wheel is properly secured to motor shaft. Reset unit at unit disconnect.

If error code is not cleared by resetting unit power, replace the IGC.

IMPORTANT: Refer to Table 19 — Heating Service Analysis for additional troubleshooting analysis.

LEGEND

IGC — LED —

Integrated Gas Unit Controller Light-Emitting Diode

PROBLEM CAUSE REMEDY

Burners will not ignite.

Inadequate heating.

Poor flame characteristics.

Burners will not turn off.

Table 33 — Heating Service Analysis

Misaligned spark electrodes. Check flame ignition and sensor electrode positioning. Adjust as needed. No gas at main burners. Check gas line for air, purge as necessary. After purging gas line of air,

Water in gas line. Drain water and install drip leg to trap water. No power to furnace. Check power supply, fuses, wiring, and circuit breaker. No 24 v power supply to control circuit. Check transformer. Transformers with internal overcurrent protection

Miswired or loose connections. Check all wiring and wire nut connections. Burned-out heat anticipator in thermostat. Replace thermostat. Broken thermostat wires. Run continuity check. Replace wires, if necessary. Dirty air filter. Clean or replace filter as necessary. Gas input to unit too low. Check gas pressure at manifold. Clock gas meter for input. If too low,

Unit undersized for application. Replace with proper unit or add additional unit. Restricted airflow. Clean filter, replace filter, or remove any restrictions. Blower speed too low. Use high speed tap, increase fan speed, or install optional blower, as

Limit switch cycles main burners. Check rotation of blower, thermostat heat anticipator settings, and temToo much outdoor air. Adjust minimum position.

Incomplete combustion (lack of combustion air) results in:

Aldehyde odors, CO, sooting flame, or floating flame.

Unit is locked into Heating mode f or a one minute minimum.

allow gas to dissipate for at least 5 minutes before attempting to relight unit.

Check gas valve.

require a cool down period before resetting.

increase manifold pressure, or replace with correct orifices.

suitable for individual units. perature rise of unit. Adjust as needed.

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 man-

ifold pressure. Check vent for restriction. Clean as necessary. Check orifice to burner alignment. Wait until mandatory one minute time period has elapsed or re-

set power to unit.

Page 45

PROBLEM CAUSE REMEDY

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.

Evaporator fan will not shut off. Compressor makes excessive

noise (48TF007 scroll only).

Table 34 — Cooling Service Analysis

Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer, or

control relay. Insufficient line voltage. Determine cause and correct. Incorrect or faulty wiring. Check wiring diagram and rewire correctly. Thermostat setting too high. Lower thermostat setting below room temperature. Faulty wiring or loose connections in compressor

circuit. Compressor motor burned out, seized, or internal

overload open. Defective run/start capacitor , overload, start relay. Determine cause and replace. One leg of three-phase power dead. Replace fuse or reset circuit breaker. Determine cause. Refrigerant overcharge or undercharge. Recover refrigerant, evacuate system, and recharge to

Defective compressor. Replace and determine cause. Insufficient line voltage. Determine cause and correct. Blocked condenser. Determine cause and correct. Defective run/start capacitor, overload, or start

relay. Defective thermostat. Replace thermostat. Faulty condenser-fan motor or capacitor. Replace. Restriction in refrigerant system. Locate restriction and remove. Dirty air filter. Replace filter. Unit undersized for load. Decrease load or increase unit size. Thermostat set too low. Reset thermostat. Low refrigerant charge. Locate leak; repair and recharge. Leaking valves in compressor. Replace compressor. Air in system. Recover refrigerant, evacuate system, and recharge. Condenser coil dirty or restricted. Clean coil or remove restriction. Dirty air filter. Replace filter. Dirty condenser coil. Clean coil. Refrigerant overcharged. Recover excess refrigerant. Air in system. Recover refrigerant, evacuate system, and recharge. Condenser air restricted or air short-cycling. Determine cause and correct. Low refrigerant charge. Check for leaks; repair and recharge. Compressor valves leaking. Replace compressor. Restriction in liquid tube. Remove restriction. High head load. Check for source and eliminate. Compressor valves leaking. Replace compressor. Refrigerant overcharged. Recover excess refrigerant. Dirty air filter. Replace filter. Low refrigerant charge. Check for leaks; repair and recharge. Metering device or low side restricted. Remove source of restriction. Insufficient evaporator airflo w. Increase air quantity. Check filter and replace if

Temperature too low in conditioned area. Reset thermostat. Outdoor ambient below 25 F. Install low-ambient kit. Time off delay not finished. Wait for 30-second off delay. Compressor rotating in wrong direction. Reverse the 3-phase power leads as described in the

Replace component.

Check wiring and repair or replace. Determine cause. Replace compressor.

nameplate.

Determine cause and replace.

necessary.

Start-Up section on page 36.

Page 46

PROBLEM CAUSE REMEDY

Damper does not open.

Economizer operation limited to minimum position.

Damper does not close.

Economizer damper does not close on power loss.

LEGEND

C1 — EC — IFC — IFO — OAT — PL — SAT — SW —

Common Power Enthalpy Control Indoor (Evaporator) Fan Contactor Indoor (Evaporator) Fan On Outdoor-Air Thermostat Plug Supply-Air Thermostat Economizer Position Switch

Table 35 — Durablade Economizer Troubleshooting

Indoor (evaporator) fan is off. 1. Check to ensure that 24 vac is present at terminal C1 on the IFC or that

No power to economizer motor. 1. Check that SW3 is properly making contact with the damper blade. Check

Economizer motor failure. If the indoor (evaporator) fan and economizer motor are energized, verify that

OAT or EC set too high. 1. Set at correct temperature (3 F below indoor space temperature).

Verify economizer control board is correctly wired and works properly.

Check SAT. 1. After verifying that the OAT and EC settings and the economizer control

Incorrect wiring of economizer. 1. Verify that SW2 and SW4 are wired and working properly (see unit label

Verify economizer control board is functioning properly.

Check SAT. 1. After verifying that the wiring is correct and the economizer control board is

Economizer motor failure. If economizer control board and SAT are functioning properly, verify that there is

Verify that close-on-power-loss and economizer control board are functioning properly.

24 vac is present at the IFO terminal. Check whether 24 vac is present at PL6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram).

2. Check proper thermostat connection to G on the connection board. that SW1 is in the NC (normally closed) position.

2. Check diode D18. If diode is not functioning properly, replace D18.

3. Confirm that the economizer control board is grounded properly at PL6-4 (brown wire) and at brown terminal of the economizer control board (brown wire). The economizer motor must also be grounded properly at the negative motor terminal (brown wire).

4. Verify SW1 and SW3 are working and wired properly (see unit label diagram).

5. Check for 24 vac input at both PL6-1 (red wire) and PL6-3 (black wire). If 24 vac not present, check unit wiring (see unit label diagram). If 24 vac is found in both places, check for 24 vac at the yellow terminal of the economizer control board (yellow wire). If 24 vac power is not present, replace the economizer control board.

there is a minimum of 18 vdc at the positive motor terminal. If the motor is not operating, replace the motor.

2. Check OAT or EC by setting above outdoor temperature or humidity level. If the OAT or EC switches do not close, replace OAT or EC.

1. Perform the following tests when OAT or EC is closed, Y1 is called for and damper is at minimum position. Confirm 24 vac on gray terminal of the economizer control board (gray wire). If 24 vac is not present, check wiring (see unit label diagram).

2. Verify that SW1 and SW3 are wired correctly and working properly (see unit label diagram).

3. Check to ensure that 24 vac exists at PL6-2 (blue wire). If 24 vac is not present, check wiring (see unit wiring label diagram).

4. Check 24 vac output at PL6-10 (white wire). If 24 vac is not present, replace economizer control board.

board wiring are correct, check to ensure that the 24 vac terminal of the SAT has 24 vac (white wire). If OAT, EC, and control board are functioning and wired properly and no 24 vac exists, check wiring (see unit label diagram).

2. If supply-air temperature is greater than 57 F, 24 vac should be found at terminal T2 on the SAT (pink wire). If 24 vac is not present, replace SAT.

diagram.).

2. Check diode D19. If diode is not functioning properly, replace D19.

1. After verifying that the wiring is correct, modulate the damper to the minimum position. Remove the calls for G.

2. If the damper does not move, check for 24 vac at PL6-1 (red wire). If 24 vac is not present, check wiring (see unit label diagram).

3. If damper still does not move, check for 24 vac at blue terminal of economizer control board (blue wire). If 24 vac is not present, replace the economizer circuit board.

functioning properly , place the OAT or EC switch in the closed position. Place a call for Y1 and open the damper to the fully open position. Confirm that the 24 vac terminal of the SAT has 24 vac (white wire). If 24 vac is not present, check wiring (see unit label diagram).

2. If supply-air temperature is less than 52 F, 24 vac should be found at terminal T1 on the SAT (violet wire). If 24 vac not found, replace SAT.

a minimum of 18 vdc at the positive motor terminal. If a minimum of 18 vdc is present and the motor is still not operating, replace the motor.

1. Check voltage potential across batteries. If lower than 14 vdc, replace closeon-power-loss power supply (9-v alkaline batteries). It is recommended that you check this emergency power supply on a regular basis or whenever the filters are changed.

2. If the close-on-power-loss and economizer control board are functioning properly , check for 14 vdc or higher at the blue terminal of the economizer control board (blue wire) when power is disconnected from unit. If 14 vdc is not present, replace the control board.

Page 47

PROBLEM CAUSE REMEDY

Damper does not open.

EconoMi$er operation limited to minimum position.

Damper position less than minimum position set point.

Damper does not return to minimum position.

Damper does not close on power loss.

LEGEND

Outdoor-Air Tem perature

OAT —

Table 36 — EconoMi$er Troubleshooting

Indoor (evaporator) fan is Off. Check to ensure that 24 vac is present at terminal C1 (Common Power) on the

No power to EconoMi$er controller.

No power to G terminal. If IFM is on, check to ensure 24 vac is present on G terminal of the EconoMi$er Controller fault. If STATUS light is flashing one flash, the EconoMi$er controller is experiencing a

Thermostat fault. If STATUS light is flashing two flashes, the EconoMi$er controller senses the

Actuator fault. Check the wiring between the EconoMi$er controller and the actuator.

Minimum position set incorrectly. Verify that the MIN POS (%) is set greater than zero. Adjust MIN POS (%) to EconoMi$er changeover set-

point set too high or too low. Supply-Air Temperature Sensor

faulty. OAT Sensor faulty If ST ATUS light is flashing five flashes, the OAT sensor is faulty. Chec k wiring or

Supply-Air Low Limit Strategy controlling.

Ventilat ion Str ategy

controlling Damper travel is restricted. Check to ensure the damper is not blocked.

IFC (Indoor Evaporator Fan Contactor) or that 24 vac is present at the IFO (Indoor Evaporator Fan On) terminal. Check whether 24 vac is present at PL (Plug) 6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram).

Check proper thermostat connection to G on the connection board. Check to ensure that 24 vac is present across Terminals 24 VAC and 24V COM

on the EconoMi$er control. If 24 vac is not present, check wiring (see unit label diagram). If 24 vac is present, STATUS light should be on constantly.

controller. If 24 vac is not present, check wiring (see unit label diagram). fault condition. Cycle power to the controller. If condition continues, replace the

EconoMi$er controller. thermostat is wired incorrectly. Check wiring between the thermostat and the

connection board in the electrical panel. The fault condition is caused by Y2 being energized before Y1.

Hold CONFIG button between three and ten seconds to verify the actuator’s operation. (This process takes three minutes to complete.)

100% to verify operation, and then set to correct setting. Set at correct value. See Table 3.

If STATUS light is flashing four flashes, the Supply-Air Temperature Sensor is faulty. Check wiring or replace sensor.

replace sensor. The supply-air temperature is less than 45 F, causing the minimum position to

decrease. Refer to the Start-Up instructions. Verify correc t setting of MIN POS (%). If correct, EconoMi$er is operating correctly.

If CO2 sensor is being used, and the damper position is greater than minimum position, the ventilation control strategy is controlling. Refer to the Start-Up instructions. EconoMi$er is operating correctly.

Page 48

Fig. 53 — Typical Wiring Diagram and Component Arrangement

Page 49

LEGEND FOR FIG. 53 — TYPICAL WIRING SCHEMATIC AND COMPONENT ARRANGEMENT

IMPORTANT: Refer to unit wiring label for actual unit wiring information.

AHA — C— CAP — CC — COMP — D— EC — ECON — EPS —

EQUIP — ER — FPT — FU — GND — HPS — HS — I— IDM — IFC — IFM — IGC — LPS — LS — MGV — MTR — OAT — OFM — OLR — PL — QT — R—

Adjustable Heat Anticipator Contactor, Compressor Capacitor Cooling Compensator Compressor Motor Diode Enthalpy Control Economizer Emergency Power Supply (Nine Volt Battery) Equipment Economizer Relay Freeze Up Protection Thermostat Fuse Ground High-Pressure Switch Hall-Effect Sensor Ignitor Induced-Draft Motor Indoor Fan Contactor Indoor (Evaporator) Fan Motor Integrated Gas Unit Controller Low-Pressure/Loss-of-Charge Switch Limit Switch Main Gas Valve Motor Outdoor-Air Thermostat Outdoor (Condenser) Fan Motor Overload Relay Plug Assembly Quadruple Terminal Relay

NOTES:

1. If any of the original wire furnished must be replaced, it must be replaced with type 90 C wire or its equivalent.

2. Three-phase motors are protected under primary single-phasing conditions.

3. Thermostat: HH07AT170, 172, 174 and P272-2783 Subbase: HH93AZ176, 178 and P272-1882, 1883.

4. Set heat anticipator at .14 amp. For units with 2 stages of heating, set stage two anticipator at .14 amp.

5. Use copper conductors only. from 230-v tap (ORN) and connect to 208-v tap (RED). Insulate end of 230-v tap.

RS — SAT — SEN — SW1 — SW2 — SW3 — SW4 — TC — TDR — TH — TRAN —

Rollout Switch Supply Air Thermostat Sensor Switch Fully Open Switch Fully Closed Switch Min. Vent Position Switch Max. Vent Position Thermostat-Cooling Time-Delay Relay Thermostat-Heating Transformer

Field Splice Marked Wire Terminal (Marked) Terminal (Unmarked) Terminal Block Splice Splice (Marked) Factory Wiring Field Control Wiring

Field Power Wiring Accessory or Optional Wiring

To indicate common potential only; not to represent wiring.

Page 50

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 4 Tab 1a 6a

PC 111 Catalog No. 534-80000 Printed in U.S.A. Form 48TF-1SI Pg 50 8-00 Replaces: New

Page 51

Page 52

START-UP CHECKLIST

(Remove and Use in Job File)

I. PRELIMINARY INFORMATION:

MODEL NO.: _________________________________ SERIAL NO.: ______________________________________ DATE: _______________________________________ TECHNICIAN: ____________________________________

BUILDING LOCATION: _____________________________

II. PRE-START-UP (insert checkmark in box as each item is completed)



VERIFY THA T ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT



REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS



VERIFY THA T CONDENSATE CONNECTION IS INST ALLED PER INSTALLATION INSTRUCTIONS



VERIFY THA T FLUE HOOD IS INSTALLED



CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS



CHECK TO ENSURE NO WIRES ARE TOUCHING REFRIGERANT TUBING OR SHARP EDGES



CHECK GAS PIPING FOR LEAKS



CHECK THAT INDOOR-AIR FILTER IS CLEAN AND IN PLACE



VERIFY THA T UNIT INSTALLATION IS LEVEL



CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS



VERIFY PULLEY ALIGNMENT AND BEL T TENSION ARE CORRECT

III. START-UP:

ELECTRICAL

SUPPLY VOLTAGE L1-L2 _________ L2-L3 __________ L3-L1 __________ COMPRESSOR AMPS L1 _________ L2 __________ L3 __________ INDOOR-FAN AMP L1 _________ L2 __________ L3 __________

TEMPERATURES

OUTDOOR-AIR TEMPERA TURE __________ DB _________ WB RETURN-AIR TEMPERATURE __________ DB _________ WB COOLING SUPPLY AIR __________ DB _________ WB GAS HEAT SUPPLY AIR __________ DB

PRESSURES

GAS INLET PRESSURE __________ IN. WG GAS MANIFOLD PRESSURE __________ IN. WG (LOW FIRE) ________ IN. WG (HI FIRE) REFRIGERANT SUCTION __________ PSIG ________ TEMP ° F REFRIGERANT DISCHARGE __________ PSIG ________ TEMP ° F



VERIFY REFRIGERANT CHARGE USING CHARGING TABLES



VERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN CORRECT DIRECTION (48TF007 ONLY)

CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 4 Tab 1a 6 a

PC 111 Catalog No. 534-80000 Printed in U.S.A. Form 48TF-1SI Pg CL-1 8-00 Replaces: New

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - -