Carrier 48TJD008-014, 48TJE008-014, 48TJF008-012 User Manual

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Page 1

Single-Package Rooftop Heating/Cooling Units

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS ...................1

INSTALLATION .............................1-22

Step 1 — Provide Unit Support ...............1

• ROOF CURB

• SLAB MOUNT

Step 2 — Field Fabricate Ductwork ............2

Step 3 — Install External Trap for

Condensate Drain ..........................2

Step 4 — Rig and Place Unit ..................2

• POSITIONING

Step 5 — Install Flue Hood ...................8

Step 6 — Install Gas Piping ...................8

Step 7 — Make Electrical Connections ........8

• FIELD POWER SUPPLY

• FIELD CONTROL WIRING

• HEAT ANTICIPATOR SETTINGS Step 8 — Adjust Factory-Installed Options ...11

• APOLLO CONTROL

• MANUAL OUTDOOR-AIR DAMPER

• OPTIONAL DURABLADE ECONOMIZER

• OPTIONAL PARABLADE ECONOMIZER

Step 9 — Adjust Evaporator-Fan Speed ......16

START-UP .................................23,24

SERVICE ..................................25-30

TROUBLESHOOTING ......................31-36

START-UP CHECKLIST .................... CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trainedand 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 literature, tags and labels attached to the unit, and other safety precautions that may apply.

Follow all safety codes. Wearsafety glasses and work gloves. Use quenching cloth for unbrazing operations. Have ﬁre extinguishers available for all brazing operations.

48TJD008-014

48TJE008-014

48TJF008-012

Disconnect gas piping from unit when leak testing at pressure greater than1⁄2psig. Pressures greater than1⁄2psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than1⁄2psig, it must be replaced before use. When pressure testing ﬁeldsupplied gas piping at pressures of1⁄2psig or less, a unit connected to such piping must be isolated by manually closing the gas valve(s).

Before performing service or maintenance operations on unit, turn offmain power switch to unit. Electrical shock could cause personal injury.

INSTALLATION

Unit is shipped in the vertical discharge 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 insulationside down. Seals around duct openings must be tight. See Fig. 1.

Step 1 — Provide Unit Support

ROOF CURB — Assemble and install accessory roof curb 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. If gas is to be routed through the curb, attach the accessory thru-the-curb service connection plate to the roof curb in accordance with the accessory installation instructions. Connection plate must be installed before unit is set in roof curb.

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 also result in air leaks and poor unit performance.

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.

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. 564-934 Printed in U.S.A. Form 48TJ-13SI Pg 1 9-96 Replaces: 48TJ-10SI

Page 2

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 units. Do not connect ductwork to unit. For horizontal applications, ﬁeld-supplied ﬂanges should be attached to horizontal discharge openings and all ductwork 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

insulated 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 −.35 in. wg with Durablade or PARABLADE economizer or .45 in. wg without economizer.

These units are designed for a minimum continuous returnair 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 —

are located at 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.

When using the standard side drain connection, make sure the plug 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 from the

The unit’s3⁄4-in. condensate drain connections

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 against freezeup. See Fig. 5. 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.

Step4 — Rig and Place Unit — Inspect unit for trans-

portation 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. 6 for additional information. Operating weight is shown in Table 1 and Fig. 6.

Lifting holes are provided in base rails as shown in Fig. 6 and 7. Refer to rigging instructions on unit.

All panels must be in place when rigging.

POSITIONING — Maintain clearance around and above unit to provide minimum distance from combustible materials, proper airﬂow, and service access. See Fig. 7.

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 so that snow will not block the combustion intake or ﬂue outlet.

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.

Position unit on roof curb so that the following clearances are maintained: rails on each side and front of unit; 15⁄32-in. clearance between roof curb and rear of unit. (See Fig. 2, section C-C.)

⁄4-in. clearance between roof curb and base

Fig. 1 — Horizontal Conversion Panels

Page 3

UNIT SIZE

48TJ

008-014 28-8

‘‘B’’ ‘‘C’’ ‘‘D’’ALT DRAIN HOLE

⁄169 [827] 18-1015⁄169 [583] 13⁄49 [45]

‘‘E’’

GAS

⁄49 NPT3⁄49 NPT

⁄49 NPT 11⁄49 NPT

POWER

CONNECTION

CONTROL

CONNECTION

⁄29 NPT

CONNECTOR

ACCESSORY

PACKAGE

CRBTMPWR00A100

(THRU-THE-BOTTOM)

CRBTMPWR00A200

(THRU-THE-BOTTOM)

UNIT SIZE

48TJ ACCESSORY

008-014

NOTES:

1. Roof curb accessory is shipped unassembled.

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.

‘‘A’’

18-29 [356] CRRFCURB003A00 28-09 [610] CRRFCURB004A00

ROOF CURB

7. Direction of airﬂow.

8. Either accessory connector package can be used with either roof curb.

Fig. 2 — Roof Curb Details

Page 4

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B B-C A-C

0.5 1.0 1.0

Fig. 3 — Unit Leveling Tolerances

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

Fig. 4 — Condensate Drain Pan

NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in. trap is recommended.

Fig. 5 — External Trap Condensate Drain

Locate mechanical draft system ﬂue assembly at least 48 in. from any opening through which combustion products could enter the building, and at least 48 in. from an adjacent building or combustible material. When unit is located adjacent to public walkways, ﬂue assembly must be at least 7 ft above grade.

Flue vent discharge must have a minimum horizontal clearance of 48 in. from electric and gas meters, gas regulators, and gas relief equipment.

Flue gas can deteriorate building materials. Orient unit so 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), ANSI (American National Standards Institute) Z223.1-latest year and addendum Z223.1A-latest year. In Canada, installation must be in accordance with the CAN1. B149.1 and CAN1.B149.2 installation codes for gas burning appliances.

NOTES:

1. Dimension in ( ) is in millimeters.

2. Hook rigging shackles through holes in base rail as shown in detail ‘‘A.’’ Holesinbase rails arecentered around theunit center ofgravity. Usewooden top skid when rigging to prevent rigging straps from damaging unit.

3. Weights include base unit without economizer. See Table1 for economizer weights.

All panels must be in place when rigging.

Fig. 6 — Rigging Details

MAX

UNIT

48TJD/TJE/TJF008 870 395 87.38 2219 40.25 1022 41.31 1050 48TJD/TJE/TJF009 880 399 87.38 2219 40.25 1022 41.31 1050 48TJD/TJE/TJF012 1035 469 87.38 2219 40.25 1022 49.31 1253

48TJD/TJE014 1050 476 87.38 2219 40.25 1022 49.31 1253

WEIGHT

lb kg in. mm in. mm in. mm

‘‘A’’ ‘‘B’’ ‘‘C’’

DIMENSIONS

Page 5

Table 1 — Physical Data

UNIT SIZE 48TJ 008D/E/F 009D/E/F 012D/E/F 014D/E NOMINAL CAPACITY (tons) 7 OPERATING WEIGHT (lb)

Unit

Al/Al* 870 880 1035 1050 Al/Cu* 881 896 1057 1077

Cu/Cu* 893 907 1080 1100 Durablade Economizer 44 44 44 44 PARBLADE Economizer 62 62 62 62 Roof Curb 143 143 143 143

COMPRESSOR Reciprocating Scroll

Quantity 2222 Oil (oz) 50 ea 50 ea 50 ea 54 ea

REFRIGERANT TYPE R-22

Operating Charge (lb-oz)

Circuit 1 4-13 6-14 5-13 8-10

Circuit 2 4-14 6-3 5-14 8- 6

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Rows...Fins/in. 1...17 2...17 2...17 2...17 Total Face Area (sq ft) 20.50 18.00 17.42 25.00

CONDENSER FAN Propeller Type

Nominal Cfm 6500 6500 7000 7000 Quantity...Diameter (in.) 2...22 2...22 2...22 2...22 Motor Hp...Rpm Watts Input (Total) 600 600 600 600

EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Feed Device

Rows...Fins/in. 3...15 3...15 3...15 4...15 Total Face Area (sq ft) 8.0 8.0 10.0 11.1

EVAPORATOR FAN Centrifugal Type

Quantity...Size (in.) Std 1...15 x 15 1...15 x 15 1...15 x 15 1...15 x 15 Type Drive Std Belt Belt Belt Belt Nominal Cfm 3000 3400 4000 5000

Motor Hp Std ———— Maximum Continuous Bhp Std 2.40 2.40 2.40 4.20 Motor Frame Size Std 56 56 56 56 Nominal Rpm High/Low ————

Fan Rpm Range Std 590-840 685-935 685-935 860-1080 Motor Bearing Type Ball Ball Ball Ball

Maximum Allowable Rpm 2100 2100 2100 2100 Motor Pulley Pitch Diameter Min/Max (in.) Std 2.4/3.4 2.8/3.8 2.8/3.8 4.0/5.0

Nominal Motor Shaft Diameter (in.) Std Fan Pulley Pitch Diameter (in.) Std 7.0 7.0 7.0 8.0 Nominal Fan Shaft Diameter (in.) ————

Belt, Quantity...Type...Length (in.) Std 1...A...48 1...A...48 1...A...51 1...A...51 Pulley Center Line Distance (in.) Std 16.75-19.25 16.75-19.25 15.85-17.50 15.85-17.50 Speed Change per Full Turn of Std 50 50 50 44

Movable Pulley Flange (rpm) Alt 50—5050

Movable Pulley Maximum Full Turns Std 5555

From Closed Position Alt 5—56

Factory Setting Std 5555 Factory Speed Setting (rpm) Std 590 685 685 860 Fan Shaft Diameter at Pulley (in.) 1111

Alt 1...15 x 15 — 1...15 x 15 1...15 x 15 Alt Belt — Belt Belt

Alt ———— Alt — — 2.90 5.25 Alt — — 56 56

Alt 685-935 — 835-1085 900-1260

Alt 2.8/3.8 — 3.4/4.4 3.1/4.1 Alt —— Alt 7.0 — 7.0 5.9

Alt 1...A...51 — 1...A...57 1...BX...46 Alt 16.75-19.25 — 15.85-17.50 15.85-17.50

Alt 5—56 Alt 685 — 835 960

⁄4...1100

⁄

81⁄

⁄4...1100

⁄

10 121⁄

⁄4...1100

⁄

⁄4...1100

⁄

(See legend and notes on page 6.)

Page 6

Table 1 — Physical Data (cont)

UNIT SIZE 48TJ 008D/E/F 009D/E/F 012D/E/F 014D/E FURNACE SECTION

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

(in. ...drill size)

Natural Gas Std .120...31 .120...31 .120...31/.120...31/.129...30 .120...31/.129...30 Liquid Propane Alt .096...41 .096...41 .096...41/.096...41/.102...38 .096...41/.102...38

Pilot Oriﬁce Diameter

(Quantity) in. ...drill size

Natural Gas Std —— —— Liquid Propane Alt —— ——

Thermostat Heat Anticipator Setting (amps)

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

Gas Input (Btuh) Stage 1 125,000/120,000/180,000 125,000/120,000/180,000 120,000/180,000/200,000 180,000/200,000 Efficiency (Steady

State) (%) 80 80 80 80

Temperature Rise Range 20-50/35-65/45-75 20-50/35-65/45-75 35-65/35-65/40-70 35-65/40-70 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 11 11 Field Gas Connection

Size (in.)

HIGH-PRESSURE SWITCH (psig)†

Standard Compressor

Internal Relief (Differential)

Cutout 428 428 Reset (Auto.) 320 320

LOW-PRESSURE SWITCH (psig)†

Cutout 7±3 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 25 x 1

RETURN-AIR FILTERS Throwaway

Quantity...Size (in.) 4...16 x 20 x 2 4...16 x 20 x 2 4...20 x 20 x 2 4...20 x 20 x 2

Al — Aluminum Bhp — Brake Horsepower Cu — Copper

Stage 2 .20 .20 .20 .20

Stage 2 —/180,000/224,000 —/180,000/224,000 180,000/224,000/250,000 224,000/250,000

⁄2/3⁄4/3⁄

⁄4/3⁄4/3⁄

450±50 500±50

1...16 x 25 x 1

LEGEND

*Evaporator coil ﬁn material/condenser coil ﬁn material.

†Requires an optional or accessory controls kit. NOTE: The 48TJ008-014 units have a loss-of-charge/low-pressure

switch (accessory) located in the liquid line.

⁄4/3⁄

Page 7

STANDARD

UNIT

WEIGHT

48TJ

Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg ft-in. mm ft-in. mm ft-in. mm ft-in. mm

UNIT

CORNER

WEIGHT

(A)

CORNER

WEIGHT

(B)

CORNER

WEIGHT

(C)

CORNER

WEIGHT

(D)

D/E/F008 870 395 189 86 161 73 239 109 280 127 1-2 D/E/F009 880 399 191 87 163 74 242 110 284 129 3-3 D/E/F012 1035 469 225 102 192 87 285 129 333 151 2-5 D/E014 1050 476 228 103 195 88 289 131 338 153 1-2

‘‘H’’ ‘‘J’’ ‘‘K’’ ‘‘L’’

⁄8378 3-55⁄161050 2-911⁄16856 2- 27⁄16672

⁄81013 3-55⁄161050 2-911⁄16856 2- 27⁄16672

⁄8759 4-15⁄161253 3-03⁄8924 2-107⁄16875

⁄8378 4-15⁄161253 3-03⁄8924 2-107⁄16875

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 shouldbe attachedto horizontaldischarge 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, 48 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 get-

ting 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 Electrical 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 surfaces, 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 Notes 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 18-79 [483] up from the bottom of the base rail. Horizontal center of gravity is shown.

CONNECTION SIZES

⁄89 Dia [35] Field Power Supply Hole

A 1

⁄29 Dia [64] Power Supply Knock-Out

B 2-

⁄49 Dia [44] Charging Port Hole

C 1

⁄89 Dia [22] Field Control Wiring Hole

⁄49—14 NPT Condensate Drain

⁄29—14 NPT Gas Connection 48TJD008 & 009

⁄49—14 NPT Gas Connection 48TJE/F008 & 009;

48TJD/E012,014, 48TJF012

G 29 Dia [51] Power Supply Knock-Out

BOTTOM POWER CHART, THESE HOLES REQUIRED FOR USE WITH ACCESSORY

PACKAGES — CRBTMPWR001A00,

OR CRBTMPWR002A00

THREADED

CONDUIT SIZE

⁄2( 24 V

⁄4( Power* 11⁄89 [28.4]

11⁄4( Power* 13⁄49 [44.4]

*Select either

WIRE SIZE

⁄49 or 11⁄49 for power, depending on wire size.

REQUIRED HOLE

SIZES (MAX)

⁄89 [22.2]

Fig. 7 — Base Unit Dimensions

Page 8

Step 5 — Install Flue Hood — Flue hood is shipped

screwed to the burner compartment access panel. Remove from shipping location and, using screws provided, install ﬂue hood and screen in location shown in Fig. 8.

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 Z223.1latest year and addendum Z223.1A-latest year entitled National Fuel Gas Code. In Canada, installation must be in accordance with the CAN1.B149.1 and CAN1.B149.2 installation codes for gas burning appliances.

For natural gas applications, gas pressure at unit gas connection must not be less than 4.0 in. wg (5.0 in. wg in high heat units) or greater than 13.0 in. wg while unit is operating. For liquid propane applications, the gas pressure must not be less than 5.0 in. wg or greater than 13.0 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. 9. For example, 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, and a 48-ft long pipe would have a minimum of 6 support beams.

See Fig. 9 for typical pipe guide and locations of external

manual gas shutoff valve.

Step 7 — Make Electrical Connections

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 (National Fire Protection Association), latest edition, and local electrical codes. Do not use gas piping as an electrical ground. Failure to follow this warning could result in the installer being liable for personal injury of others.

Fig. 8 — Flue Hood Details

LEGEND

NFGC — National Fuel Gas Code *Field supplied.

NOTE: Follow all local codes.

SPACING OF SUPPORTS

STEEL PIPE

NOMINAL

DIAMETER

(in.)

⁄

⁄4or 1 8

⁄4or larger 10

DIMENSION

(feet)

Fig. 9 — Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

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 from the 230-v red wire on the transformer and connecting it to the 200-v blue wire from the transformer. The red wire then must be insulated.

Refer to unit label diagram for additional information. Pig-

tails are provided for ﬁeld service.

When installing units, provide a disconnect per NEC. Use

copper conductors only when splice connectors are used.

All ﬁeld wiring must comply with NEC and local requirements. In Canada, electrical connections must be in accordance with CSA (Canadian Standards Association) C22.1 Canadian Electrical Code Part One.

Install conduit through side panel openings indicated in Fig. 7. Route power lines through connector to terminal connections as shown in Fig. 10.

On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Table 2, Note 2 to determine the percentage 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.

NOTE: If ﬁeld-installed thru-the-bottom connections are used, refer to the accessory installation instructions for power wiring. Refer to Fig. 7 for drilling holes in basepan.

FIELD CONTROL WIRING — Install a Carrier-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature in accordance with thermostat installation instructions.

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft, use no. 16 AWG insulated wire (35 C minimum). For over 75 ft, use no. 14 AWGinsulated wire (35 C minimum). All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.

Page 9

Route thermostat cable or equivalent single leads of colored wire from subbase terminals to low-voltage connections on unit (shown in Fig. 11) as described in Steps1-4 below.

1. If unit is mounted on roof curb and accessory thru-the-

curb service plate connection is used, route wire through connection plate.

2. Pass control wires through the hole provided on unit

(see connection D in Connection Sizes table in Fig. 7).

3. Feed wires through the raceway built into the corner post

to the 24-v barrier located on the left side of the control

Table 2 — Electrical Data

box. See Fig. 12. The raceway provides the UL-required (Underwriters’Laboratories) clearance between high- and low-voltage wiring.

4. Connect thermostat wires to screw terminals on lowvoltage connection board.

HEAT ANTICIPATOR SETTINGS — Set heat anticipator settings at .14 amp for the ﬁrst stage and .20 amp for secondstage heating.

UNIT 48TJ

008

⁄2Tons)

009

⁄2Tons)

012

(10 Tons)

014

(12

⁄2Tons)

NOMINAL VOLTAGE

(60 Hz)

208/230

(3 phase)

460

(3 phase)

575

(3 phase)

208/230

(3 phase)

460

(3 phase)

575

(3 phase)

208/230

(3 phase)

460

(3 phase)

575

(3 phase)

208/230

(3 phase)

460

(3 phase)

575

(3 phase)

VOLTAGE

IFM

TYPE

RANGE

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

Std 187 254 13.6 73.4 Std 414 508 6.2 37.7 Std 518 632 4.9 31.0 Std 187 254 15.8 92.0 Std 414 508 7.4 46.0 Std 518 632 5.9 44.0

Std

187 254 17.9 110.0

Alt 7.5 50.6/50.6 60/60 53/53 286/286

Std

414 508 8.6 55.0

Alt 3.4 24.2 30 25 173

Std

518 632 6.4 44.0

Alt 3.4 18.2 20 19 139

Std

187 254 23.0 146.0

Alt 15.0 69.6/69.6 80/80 73/73 406/406

Std

414 508 10.4 73.0

Alt 7.4 32.2 35 34 203

Std

518 632 8.3 58.4

Alt 7.4 25.7 35 27 163

COMPR

(ea)

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 UL — Underwriters’ Laboratories

*Used to determine minimum disconnect size 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 the unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker.

2. Unbalanced 3-Phase Supply Voltage

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

the percent voltage imbalance.

Use the following formula to determine

% Voltage Imbalance = 100 x

max voltage deviation from average voltage

average voltage

OFM

(ea)

⁄41.4 5.8 .57 39.2/39.2 45/45 41/41 194/194

⁄40.8 2.6 .30 18.0 25 19 99

⁄40.8 2.6 .30 14.2 20 15 81

⁄41.4 5.8 .57 44.2/44.2 50/50 46/46 231/231

⁄40.8 2.6 .30 20.7 25 22 116

⁄40.8 2.6 .30 16.5 20 17 107

⁄41.4

⁄40.8

⁄41.4

⁄40.8

IFM

5.8

2.6

10.6

4.8

COMBUSTION

FAN MOTOR

.57

.30

.57

.30

POWER SUPPLY

DISCONNECT

SIZE*

48.9/48.9 60/60 51/51 267/267

23.4 30 24 134

17.6 20 18 107

65.2/65.2 80/80 68/68 383/383

29.6 35 31 192

23.6 30 25 154

EXAMPLE: Supply voltage is 460-3-60.

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

Average Voltage =

452 + 464 + 455

1371

= 457 NOTE: The 575-v 48TJ008-014 units are UL, Canada, only. Determine maximum deviation from average voltage.

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

Maximum deviation is 7 v. Determine percent voltage imbalance.

% Voltage Imbalance = 100 x

457

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.

Page 10

Fig. 10 — Power Wiring Connections

LEGEND

C—Contactor COMPS — Compressors IFC — Indoor (Evaporator) Fan

NEC — National Electrical Code TB — Terminal Block

Contactor

Terminal Block Connection Splice Connection

(Factory Supplied) Field Wiring Factory Wiring

LEGEND

AHA — Adjustable Heat Anticipator CC — Cooling Compensator TC — Thermostat-Cooling TH — Thermostat-Heating

Field Wiring Factory Wiring

Fig. 11 — Low-Voltage Connections

UNIT CONNECTION BOARD

RACEWAY

INTEGRATED GAS UNIT CONTROLLER (IGC)

Fig. 12 — Field Control Wiring Raceway

Page 11

Step 8 — Adjust Factory-Installed Options

APOLLO CONTROL — The optionalApollo control is used to actively monitor all modes of operation as well as indoor (evaporator) fan status, ﬁlter status, and indoor-air quality. The Apollo control is designed to work with Carrier TEMP and VVTt systems.

The thermostat must be wired to the Apollo control before starting the unit. Refer to the Apollo control installation instructions for information on installing the thermostat. See Fig. 13 for Apollo location.

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 ﬁlter access panel by raising panel and swinging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove the ﬁlter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 14.

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

4. Replace outdoor air opening panel with screws saved from Step 2.

5. Place hood on front of outdoor-air opening panel. See Fig. 15 for hood details. Secure top of hood with the 6 screws removed in Step 3. See Fig. 16.

6. Remove and save 8 screws (4 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. 15 and 16. Secure hood with 8 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. 14. Slide blade vertically until it is in the appropriate position determined by Fig. 17. Tighten screws.

OUTDOOR AIR OPENING PANEL

Fig. 14 — Damper Panel with Manual

Outdoor-Air Damper Installed

WIRING TO THERMOST AT

APOLLO CONTROL

CONTROL WIRING

Fig. 13 — Apollo Control Factory-Installed

in Typical Unit

Fig. 15 — Outdoor-Air Hood Details

HOOD

NOT SHOWN)

Fig. 16 — Damper with Hood Attached

Page 12

Fig. 17 — Position Setting

9. Remove and save screws currently on sides of hood. Insert screens. Secure screens to hood using the screws. See Fig. 16.

10. Replace ﬁlter access panel. Ensure ﬁlter access panel slides along the tracks and is securely engaged.

OPTIONAL DURABLADE ECONOMIZER — The optional 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 the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 8.

2. Remove ﬁlter access panel by raising panel and swinging 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. 18. Remove optional economizer and outdoor-air damper hood package from ﬁlter section.

3. Assemble outdoor-air hood top and side plates as shown in Fig. 19. Install seal strips on hood top and sides. Put aside screen retainer and retainer screw for later assembly. Do not attach hood to unit at this time.

4. On 012 and 014 units, install vertical discharge blockoff plate over duct openings. See Fig. 20.

5. Slide economizer into unit and secure with screws. See Fig. 21.

NOTE: Be sure to engage rear economizer ﬂange under tabs in vertical return-air opening.

6. To convert to horizontal discharge application: a. Rotate the economizer 90 degrees until the econo-

mizer motor faces the condenser section (see Fig. 22).

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. 23.

7. Insert economizer plug into economizer harness. Remove tape from barometric relief damper. See Fig. 21.

8. If ventilation air is not required, proceed to Step 9. If ventilation air is required, determine the minimum position setting for required airﬂow. See Fig. 24. Adjust minimum position setting by adjusting the screws on the position setting bracket. See Fig. 25. Slide bracket until the top screw is in the position determined by Fig. 24. Tighten screws.

9. Remove tape from outdoor-air thermostat (OAT). Fasten OAT to inside of hood using screws and speed clips provided. See Fig. 26. Make sure OAT terminals are positioned up.

10. Replace outdoor-air opening panel using screws from Step 2. Replace ﬁlter access panel. Ensure the ﬁlter access panel slides along the tracks and is securely engaged.

11. Fasten hood top and side plate assembly to outdoor-air opening panel with screws provided.

12. Place knob supplied with economizer on OAT. See Fig. 26. 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. 26.

13. Connect OAT per Fig. 27.

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

NOTE: Refer to Fig. 28 for Durablade economizer barometric relief damper characteristics.

OUTDOOR-AIR OPENING PANEL

Fig. 18 — Access Panel Locations

FILTER ACCESS PANEL

Page 13

ECONOMIZER CONTROL BOARD

ECONOMIZER PLUG

ECONOMIZER MOTOR

TOP SCREW

Fig. 21 — Durablade Economizer Installed in Unit

Fig. 19 — Outdoor-Air Hood Details

Fig. 20 — Vertical Discharge Block-Off Plate

(Sizes 120,150 only)

ECONOMIZER CONTROL BOARD

POSITION SETTING BRACKET

ECONOMIZER MOTOR

Fig. 22 — Horizontal Durablade Economizer

Installation (90 Degree Rotation)

BLOCK-OFF PLATE

Fig. 23 — Horizontal Discharge Block-Off Plate

Page 14

Example:

Given —

Negative Pressure .......................0.1in.wg

Outdoor Airﬂow ........................1100cfm

Determine —

Setting = 69

Fig. 24 — Durablade Economizer Damper

Minimum Position Setting

Fig. 25 — Durablade Economizer Minimum

Position Damper Setting

REV. B

CONTACTS SHOWN IN HIGH ENTHALPY

OR UNPOWERED STATE

198818A

ENTHALPY

24VAC

CONTROL

TR1

MINIMUM

POSITION

OPEN

CONTACT RATINGS: 1.5A RUN, 3.5A IN

RUSH AT 24VAC

CW–SETPOINTS–CCW

DAMPER

OUTDOOR TEMP.

OPEN

B A

°F

3 mA MIN. AT 11 VDC

65 70

DAMPER

CLOSED

75 80

97-3672

REV.

Fig. 26 — Outdoor-Air Thermostat/

Enthalpy Control Installation

Fig. 27 — Wiring Connections for

Outdoor-Air Thermostat

Page 15

Fig. 28 — Durablade Economizer Barometric Relief

Damper Characteristics

OPTIONAL PARABLADE ECONOMIZER — The optional PARABLADE 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. The PARABLADE economizer can only be used for vertical discharge applications. Discard this plate.

Assembly

1. Determine if ventilation air is required in building. If so, determine the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 7.

2. Remove ﬁlter access panel by raising panel and swinging 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. See Fig. 18. Save panels and screws. Remove optional economizer so the outdoor-air damper hood package can be removed from the ﬁlter section.

4. On 012 and 014 units, install vertical discharge blockoff plate over duct openings. See Fig. 20.

5. Slide economizer into unit and secure with screws. See Fig. 29.

NOTE: Be sure to engage rear economizer ﬂange under tabs in vertical return-air opening.

6. Insert economizer plug into economizer harness. Remove tape from barometric relief damper. See Fig. 29.

7. If ventilation air is not required, proceed to Step 8. If ventilation air is required, perform the following:

a. Make sure the factory-installed jumper is in place across

terminals P and P1 on the economizer logic module. T and T1 should be disconnected during adjustment.

b. The 2 potentiometers with slots for adjustment are

located on the face of the economizer logic module. Turn the lower potentiometer fully clockwise. The

dampers should be fully closed. Turn the potentiometer gradually counterclockwise until the desired po-

sition is reached. c. Connect T and T1 to the 24 v power supply. d. After installation is complete, calculate the mini-

mum airﬂow across the economizer. To calculate the

minimum airﬂow, the following data is needed: total

cfm (cfm

perature of the return air (T1), and temperature of the

), temperature of the total cfm (T3), tem-

entering outside air (T2). Cfm1is the return air cfm,

which will be the minimum airﬂow.

Insert the data into the following equations:

(cfm1)+T2(cfm2)

cfm

cfm2= (cfm3– cfm1)

Therefore:

(cfm1)+T2(cfm3– cfm1)

cfm

Use this equation to determine cfm1, which is the mini-

mum airﬂow across the economizer.

cfm1=

If cfm

from Step 1, re-adjust the minimum position setting

does not match the desired minimum airﬂow

3–T2

1–T2

) cfm

)

screw.

8. Determine the enthalpy changeover set point from Fig. 30. The enthalpy changeover set point should be set to return the outdoor air damper to the minimum position when enthalpy rises above the set point. The settings are A, B, C, and D. Set the enthalpy changeover per the setting in Fig. 30.

9. Replace outdoor-air opening panel using screws from Step 2. Replace ﬁlter access panel. Ensure the ﬁlter access panel slides along the tracks and is securely engaged. See Fig. 31.

10. Fasten hood top and side plate assembly (Fig. 32) to outdoor-air opening panel with screws provided.

11. Slide outdoor-air inlet screens into screen track on hood side plate. While holding screens in place, fasten screenretainer to hood using screws provided. See Fig. 33.

ECONOMIZER CONTROL MODULE/DAMPER ACTUATOR

WIRING HARNESS

ENTHALPY SENSOR

BAROMETRIC RELIEF DAMPER

Fig. 29 — PARABLADEEconomizer Installed in Unit

Page 16

CONTROL

CURVE

RH — Relative Humidity

CONTROL POINT

F (C) (APPROX)

A 73 [23] B 70 [21] C 67 [19] D 63 [17]

AT 50% RH

Fig. 30 — Enthalpy Settings for

PARABLADE Economizer

Fig. 31 — Panels Reinstalled on Unit

Fig. 33 — Filter Installed on Outdoor-Air Hood

Step 9 — Adjust Evaporator-Fan Speed — Ad-

just evaporator-fan speed to meet jobsite conditions.

Table 3 shows fan rpm at motor pulley settings, Table 4 shows motor efficiencies and Table 5 gives accessory static pressure drops. Table 6 shows motor performance. Refer to Tables 7-14 to determine fan speed settings. Fan motor pulleys are factory set for speed shown in Table 1.

To change fan speed:

1. Shut off unit power supply.

2. Loosen belt by loosening fan motor mounting plate nuts

(see Fig. 34 and 35).

3. Loosen movable pulley ﬂange setscrew (see Fig. 36).

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).

To align fan and motor pulleys:

1. Loosen fan pulley setscrews.

2. Slide fan pulley along fan shaft.

3. Make angular alignment by loosening motor from mount-

ing plate.

To adjust belt tension (see Fig. 34 and 35):

1. Loosen fan motor mounting plate nuts.

2. Units 008,009 — Slide motor mounting plate away from

fan scroll for proper belt tension ( one ﬁnger) and tighten mounting nuts (see Fig. 34).

Units 012,014 — Slide motor mounting plate downward to tighten belt tension. Secure motor mounting plate nuts. See Fig. 35.

3. Adjust bolt and nut on mounting plate to secure motor in

ﬁxed position.

⁄2-in. deﬂection with

Fig. 32 — Outdoor-Air Hood Installed on Unit

Page 17

MOTOR MOUNTING PLATE NUTS

Fig. 34 — Typical Belt-Drive Motor Mounting

for Sizes 008,009

Fig. 35 — Typical Belt-Drive Motor Mounting

for Sizes 012,014

Fig. 36 — Evaporator-Fan Pulley Adjustment

Table 3 — Fan Rpm at Motor Pulley Settings*

UNIT 48TJ

⁄

008† 840 815 790 765 740 715 690 665 640 615 590 — — 008** 935 910 885 860 835 810 785 760 735 710 685 — — 009† 935 910 885 860 835 810 785 760 735 710 685 — — 012† 935 910 885 860 835 810 785 760 735 710 685 — — 012†† 1085 1060 1035 1010 985 960 935 910 885 860 835 — — 014† 1080 1060 1035 1015 990 970 950 925 905 880 860 — — 014†† 1260 1220 1185 1155 1130 1100 1075 1045 1015 990 960 930 900

*Approximate rpm shown.

†Indicates standard motor and drive.

**Indicates alternate drive.

††Indicates alternate motor and drive.

MOTOR PULLEY TURNS OPEN

⁄

⁄255

⁄26

Page 18

Table 4 — Evaporator-Fan Motor Efficiency

MOTOR EFFICIENCY (%)

48TJD/TJE/TJF008,009 80 48TJD/TJE/TJF012 (Std) 80 48TJD/TJE/TJF012 (Alt) 83 48TJD/TJE014 (Std) 85 48TJD/TJE014 (Alt) 87

NOTE: Convert watts to bhp using the following formula:

watts input x motor efficiency

bhp =

746

Table 5 — Economizer Static Pressure Drop (in. wg)

UNIT 48TJ

Durablade Economizer .02 .02 .03 .04 .05 .06 .07 .08 .09

PARABLADE Economizer .21.25.35.49.61————

2200 2500 3000 3500 4000 4500 5000 5500 6000

CFM

Table 6 — Motor Data

UNIT

48TJ

008 Std 2.40 2120

009 Std 2.40 2120

012

014

LEGEND

Bhp — Brake Horsepower *Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the

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

EVAPORATOR-

FAN MOTOR

Std 2.40 2120

Alt 2.90 2615

Std 4.20 3775

Alt 5.25 4400

MAXIMUM

CONTINUOUS

BHP*

MAXIMUM

OPERATING

WATTS*

UNIT

VOLTAGE

208/230 6.1

460 2.7 575 2.7

208/230 6.1

460 2.7 575 2.7

208/230 6.1

460 2.7 575 2.7

208/230 7.9

460 3.6 575 3.6

208/230 11.1

460 5.0 575 5.0

208/230 15.0

460 7.4 575 7.4

MAXIMUM

AMP DRAW

Page 19

Table 7 — Fan Performance, 48TJ008 — Vertical Discharge Units

AIRFLOW

(Cfm)

2200 506 0.52 586 0.72 656 0.95 718 1.18 776 1.43 838 1.78 898 2.21 935 2.58 2250 514 0.55 593 0.76 662 0.99 724 1.22 781 1.78 841 1.81 902 2.25 939 2.60 2300 521 0.57 600 0.79 668 1.02 730 1.26 786 1.50 843 1.83 905 2.28 943 2.62 2400 536 0.63 613 0.85 680 1.09 741 1.34 796 1.59 849 1.88 910 2.31 952 2.74 2500 551 0.69 626 0.93 693 1.17 753 1.43 808 1.69 859 1.96 912 2.31 963 2.81 2550 559 0.72 634 0.97 700 1.21 759 1.48 814 1.74 864 2.01 915 2.34 968 2.81 2600 567 0.75 641 1.00 706 1.25 764 1.52 819 1.79 869 2.06 918 2.37 973 2.81 2700 582 0.83 655 1.08 719 1.34 776 1.61 831 1.89 880 2.17 927 2.47 976 2.84 2800 598 0.90 670 1.17 732 1.43 789 1.71 842 2.00 892 2.29 938 2.58 983 2.92 2900 614 0.98 684 1.25 745 1.53 802 1.81 854 2.11 903 2.42 949 2.71 993 3.03 3000 630 1.07 699 1.35 759 1.63 815 1.92 866 2.23 915 2.54 961 2.85 1003 3.17 3100 646 1.16 714 1.45 773 1.74 828 2.04 878 2.35 926 2.67 972 3.00 1015 3.32 3200 662 1.26 729 1.55 787 1.86 841 2.16 891 2.48 938 2.81 983 3.14 1026 3.47 3300 679 1.36 744 1.66 801 1.98 854 2.29 904 2.61 950 2.95 995 3.30 — — 3400 695 1.47 759 1.78 816 2.10 867 2.42 917 2.75 963 3.10 1007 3.45 — — 3500 712 1.59 774 1.90 830 2.23 881 2.56 930 2.90 976 3.25 ———— 3600 729 1.71 790 2.03 845 2.37 895 2.71 943 3.05 988 3.41 ———— 3700 745 1.84 805 2.17 860 2.52 909 2.87 956 3.22 — ————— 3750 754 1.91 813 2.24 868 2.59 917 2.95 963 3.30 — —————

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 4.)

2. indicates alternate drive required.

3. indicates ﬁeld-supplied motor and drive required.

4. Standard drive range is 590 to 840 rpm. Alternate drive range is 685 to 935 rpm. All other rpms require a ﬁeld-supplied drive.

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

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

6. Maximum continuous bhp is 2.4. 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 ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

7. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

8. Interpolation is permissible. Do not extrapolate.

Table 8 — Fan Performance, 48TJ009 — Vertical Discharge Units

AIRFLOW

(Cfm)

2550 559 0.72 634 0.97 700 1.21 759 1.48 814 1.74 864 2.01 915 2.34 968 2.81 2600 567 0.75 641 1.00 706 1.25 764 1.52 819 1.79 869 2.06 918 2.37 973 2.81 2700 582 0.83 655 1.08 719 1.34 776 1.61 831 1.89 880 2.17 927 2.47 976 2.84 2800 598 0.90 670 1.17 732 1.43 789 1.71 842 2.00 892 2.29 938 2.58 983 2.92 2900 614 0.98 684 1.25 745 1.53 802 1.81 854 2.11 903 2.42 949 2.71 993 3.03 3000 630 1.07 690 1.35 759 1.63 815 1.92 866 2.23 915 2.54 961 2.85 1003 3.17 3100 646 1.16 714 1.45 773 1.74 828 2.04 878 2.35 926 2.67 972 3.00 1016 3.32 3200 662 1.26 729 1.55 787 1.86 841 2.16 891 2.48 938 2.81 983 3.14 1026 3.47 3300 679 1.36 744 1.66 801 1.98 854 2.29 904 2.61 950 2.95 995 3.30 — — 3400 695 1.47 759 1.78 816 2.10 867 2.42 917 2.75 963 3.10 1007 3.45 — — 3500 712 1.59 774 1.90 830 2.23 881 2.56 930 2.90 976 3.25 ———— 3600 729 1.71 790 2.03 845 2.37 895 2.71 943 3.05 988 3.41 ———— 3700 745 1.84 805 2.17 860 2.52 909 2.87 956 3.22 — ————— 3750 754 1.91 813 2.24 868 2.59 917 2.95 963 3.30 — ————— 3800 762 1.98 821 2.31 875 2.66 924 3.03 970 3.38 — ————— 3900 779 2.12 836 2.46 890 2.82 938 3.19 ———————— 4000 796 2.27 852 2.61 905 2.98 953 3.37 ———————— 4100 813 2.42 868 2.78 920 3.15 —————————— 4200 830 2.59 884 2.95 935 3.33 —————————— 4250 839 2.68 890 3.04 ———————————— 4300 847 2.76 900 3.13 ————————————

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 3.)

2. indicates ﬁeld-supplied motor and drive required.

3. Standard drive range is 685 to 935 rpm. All other rpms require a ﬁeld-supplied drive.

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

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

5. Maximum continuous bhp is 2.4. 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 ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

6. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

Page 20

Table 9 — Fan Performance, 48TJ012 — Vertical Discharge Units

AIRFLOW

(Cfm)

3000 592 0.76 661 0.93 722 1.09 779 1.26 829 1.42 880 1.58 924 1.73 970 1.89 1019 2.00 1066 2.30 3100 607 0.83 676 1.01 734 1.17 791 1.34 840 1.51 890 1.68 935 1.84 977 2.00 1026 2.17 1070 2.44 3200 622 0.90 690 1.09 746 1.25 803 1.43 852 1.60 900 1.77 946 1.95 987 2.11 1029 2.28 1075 2.51 3300 638 0.98 705 1.17 759 1.33 815 1.52 864 1.70 910 1.88 957 2.06 998 2.23 1037 2.40 1082 2.58 3400 653 1.06 719 1.26 772 1.43 826 1.62 876 1.81 921 1.98 967 2.17 1009 2.35 1047 2.53 1087 2.70 3500 669 1.15 733 1.35 786 1.53 838 1.72 888 1.91 933 2.10 976 2.29 1020 2.48 1058 2.66 1095 2.84 3600 684 1.24 747 1.44 800 1.64 850 1.82 900 2.03 945 2.22 986 2.41 1030 2.61 1069 2.80 1106 2.98 3700 700 1.33 760 1.54 814 1.75 863 1.92 912 2.14 957 2.34 998 2.54 1039 2.74 1081 2.94 1117 3.13 3800 715 1.43 774 1.64 828 1.86 875 2.04 924 2.26 969 2.47 1010 2.67 1049 2.87 1091 3.08 1128 3.29 3900 731 1.54 787 1.74 843 1.98 888 2.16 936 2.38 981 2.60 1022 2.81 1060 3.02 1100 3.23 — — 4000 747 1.64 801 1.85 857 2.10 902 2.30 948 2.51 993 2.74 1034 2.96 1072 3.17 1110 3.38 — — 4100 763 1.76 816 1.97 872 2.23 916 2.44 960 2.64 1005 2.88 1046 3.11 1084 3.32 ———— 4200 778 1.88 831 2.10 886 2.36 929 2.58 972 2.78 1016 3.03 1058 3.26 —————— 4300 794 2.00 846 2.23 900 2.50 943 2.73 985 2.93 1028 3.17 ———————— 4400 810 2.13 861 2.37 913 2.64 958 2.89 999 3.09 1040 3.32 ———————— 4500 826 2.27 876 2.52 927 2.78 973 3.04 1012 3.26 —————————— 4600 842 2.41 892 2.67 940 2.92 987 3.21 ———————————— 4700 858 2.55 907 2.83 954 3.08 1002 3.38 ———————————— 4800 874 2.70 922 2.99 968 3.24 —————————————— 4900 890 2.86 938 3.16 — ——————————————— 5000 906 3.03 953 3.33 — ———————————————

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 4.)

2. indicates alternate motor and/or drive required.

3. indicates ﬁeld-supplied motor and drive required.

4. Standard drive range is 685 to 935 rpm. Alternate drive range is 835 to 1085 rpm. All other rpms require a ﬁeld-supplied drive.

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

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

6. Maximum continuous bhp is 2.4 for the standard motor and 2.9 for thealternatemotor.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 ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

7. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

8. Interpolation is permissible. Do not extrapolate.

Table 10 — Fan Performance, 48TJ014 — Vertical Discharge Units

AIRFLOW

(Cfm)

3700 729 1.36 790 1.58 847 1.79 902 2.06 955 2.29 1008 2.55 1060 2.80 1108 3.05 1152 3.27 1190 3.46 3800 745 1.46 805 1.69 861 1.89 915 2.17 967 2.41 1019 2.67 1070 2.94 1118 3.19 1163 3.44 1203 3.65 3900 761 1.56 820 1.80 875 2.01 928 2.29 979 2.55 1029 2.80 1079 3.07 1128 3.34 1173 3.60 1214 3.83 4000 777 1.67 836 1.92 889 2.14 941 2.40 991 2.68 1040 2.94 1089 3.22 1137 3.49 1183 3.76 1225 4.00 4100 793 1.79 851 2.05 904 2.27 955 2.52 1004 2.82 1052 3.08 1100 3.36 1147 3.65 1193 3,93 1236 4.19 4200 810 1.91 867 2.18 918 2.41 968 2.65 1017 2.96 1064 3.23 1110 3.51 1157 3.81 1202 4.09 1245 4.38 4300 826 2.04 883 2.32 933 2.55 982 2.79 1030 3.11 1076 3.40 1121 3.67 1167 3.97 1212 4.27 1255 4.56 4400 842 2.17 898 2.46 948 2.70 996 2.93 1043 3.25 1088 3.56 1133 3.84 1178 4.14 1222 4.44 1265 4.74 4500 859 2.31 914 2.60 962 2.85 1010 3.09 1056 3.40 1101 3.73 1144 4.00 1188 4.31 1232 4.62 1274 4.93 4600 876 2.45 930 2.76 977 3.01 1024 3.26 1070 3.55 1114 3.90 1157 4.19 1199 4.49 1242 4.81 1284 5.13 4700 892 2.60 945 2.91 992 3.18 1039 3.43 1083 3.71 1126 4.07 1169 4.38 1210 4.68 1252 5.00 1294 5.33 4800 909 2.77 961 3.07 1008 3.36 1053 3.61 1097 3.88 1140 4.25 1181 4.58 1222 4.87 1263 5.20 — — 4900 926 2.93 977 3.24 1024 3.54 1068 3.80 1111 4.06 1153 4.41 1194 4.77 1234 5.09 1274 5.40 — — 5000 942 3.11 993 3.41 1039 3.73 1080 3.99 1125 4.25 1166 4.59 1207 4.97 1247 5.30 1286 5.62 — — 5100 959 3.29 1009 3.60 1055 3.92 1097 4.19 1139 4.46 1180 4.78 1220 5.18 1259 5.52 ———— 5200 976 3.47 1025 3.78 1071 4.12 1112 4.40 1153 4.67 1194 4.98 1233 5.38 1272 5.74 ———— 5300 993 3.67 1041 3.98 1086 4.33 1127 4.61 1168 4.90 1208 5.19 1246 5.58 —————— 5400 1010 3.87 1057 4.18 1102 4.54 1142 4.84 1182 5.13 1221 5.41 ———————— 5500 1027 4.07 1073 4.39 1118 4.76 1157 5.07 1197 5.36 1235 5.64 ———————— 5600 1043 4.29 1090 4.61 1133 4.99 1173 5.31 1211 5.61 —————————— 5700 1060 4.51 1106 4.83 1149 5.22 1189 5.55 ———————————— 5800 1077 4.74 1122 5.07 1165 5.45 —————————————— 5900 1094 4.98 1139 5.31 1181 5.70 —————————————— 6000 1111 5.22 1155 5.55 ———————————————— 6100 1128 5.48 —————————————————— 6200 1145 5.74 ——————————————————

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 4.)

2. indicates alternate motor and/or drive required.

3. indicates ﬁeld-supplied motor and drive required.

4. Standard drive range is 860 to 1080 rpm. Alternate drive range is 900 to 1260 rpm. All other rpms require a ﬁeld-supplied drive.

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

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

6. Maximum continuous bhp is 4.2 for the standard motor and 5.25 for the alternate motor. 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 ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

7. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

8. Interpolation is permissible. Do not extrapolate.

Page 21

Table 11 — Fan Performance, 48TJ008 — Horizontal Discharge Units

AIRFLOW

(Cfm)

2200 499 0.50 580 0.70 652 0.94 717 1.17 748 1.30 779 1.43 839 1.78 905 2.21 951 2.57 2250 507 0.53 586 0.73 658 0.97 722 1.22 752 1.34 783 1.46 843 1.81 908 2.25 955 2.59 2300 513 0.55 592 0.76 663 1.00 727 1.26 756 1.38 786 1.49 846 1.84 910 2.25 959 2.61 2400 528 0.60 606 0.83 674 1.06 738 1.34 766 1.46 795 1.58 853 1.88 912 2.31 967 2.68 2500 542 0.66 619 0.90 686 1.13 748 1.41 777 1.55 806 1.68 859 1.94 919 2.37 971 2.73 2550 550 0.69 627 0.94 692 1.17 754 1.45 783 1.60 812 1.74 864 1.99 920 2.39 974 2.76 2600 557 0.72 634 0.97 698 1.21 759 1.49 787 1.64 816 1.79 868 2.04 921 2.41 976 2.78 2700 573 0.79 648 1.05 711 1.29 770 1.58 798 1.73 827 1.88 878 2.16 928 2.45 983 2.88 2800 588 0.86 662 1.13 723 1.38 782 1.66 809 1.82 837 1.98 889 2.29 937 2.57 986 2.91 2900 604 0.94 676 1.21 737 1.48 794 1.76 821 1.92 848 2.08 900 2.41 947 2.70 993 3.01 3000 620 1.02 690 1.30 750 1.58 806 1.86 832 2.02 849 2.18 910 2.52 958 2.85 1002 3.15 3100 636 1.11 704 1.39 764 1.69 818 1.97 844 2.13 870 2.29 920 2.64 968 2.99 1012 3.30 3200 652 1.21 718 1.49 778 1.80 831 2.09 856 2.25 882 2.40 931 2.76 979 3.13 1023 3.47 3300 668 1.31 732 1.59 793 1.92 844 2.21 869 2.37 894 2.53 942 2.89 989 3.26 1034 3.63 3400 684 1.41 747 1.70 807 2.04 857 2.35 882 2.51 907 2.66 954 3.02 1000 3.40 1044 3.79 3500 701 1.53 762 1.82 821 2.16 871 2.48 895 2.64 919 2.80 966 3.15 1011 3.55 1054 3.94 3600 717 1.65 777 1.94 835 2.29 885 2.63 908 2.79 932 2.95 978 3.30 1022 3.69 1065 4.10 3700 733 1.77 792 2.07 849 2.42 899 2.78 922 2.95 945 3.11 990 3.45 1034 3.84 1076 4.26 3750 742 1.84 800 2.14 856 2.49 907 2.86 929 3.03 952 3.20 997 3.54 1040 3.93 1082 5.27

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 4.)

2. indicates alternate drive required.

3. indicates ﬁeld-supplied motor and drive required.

4. Standard drive range is 590 to 840 rpm. Alternate drive range is 685 to 935 rpm. All other rpms require a ﬁeld-supplied drive.

0.2 0.4 0.6 0.8 0.9 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

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

7. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

8. Interpolation is permissible. Do not extrapolate.

Table 12 — Fan Performance, 48TJ009 — Horizontal Discharge Units

AIRFLOW

(Cfm)

2550 550 0.69 627 0.94 692 1.17 754 1.45 783 1.60 812 1.74 864 1.99 920 2.39 974 2.76 2600 557 0.72 634 0.97 698 1.21 759 1.49 787 1.64 816 1.79 868 2.04 921 2.41 976 2.78 2700 573 0.79 648 1.05 711 1.29 770 1.58 798 1.73 827 1.88 878 2.16 928 2.45 983 2.88 2800 588 0.86 662 1.13 723 1.38 782 1.66 809 1.82 837 1.98 889 2.29 937 2.57 986 2.91 2900 604 0.94 676 1.21 737 1.48 794 1.76 821 1.92 848 2.08 900 2.41 947 2.70 993 3.01 3000 620 1.02 690 1.30 750 1.58 806 1.86 832 2.02 849 2.18 910 2.52 958 2.85 1002 3.15 3100 636 1.11 704 1.39 764 1.69 818 1.97 844 2.13 870 2.29 920 2.64 968 2.99 1012 3.30 3200 652 1.21 718 1.49 778 1.80 831 2.09 856 2.25 882 2.40 931 2.76 979 3.13 1023 3.47 3300 668 1.31 732 1.59 793 1.92 844 2.21 869 2.37 894 2.53 942 2.89 989 3.26 1034 3.63 3400 684 1.41 747 1.70 807 2.04 857 2.35 882 2.51 907 2.66 954 3.02 1000 3.40 1044 3.79 3500 701 1.53 762 1.82 821 2.16 871 2.48 895 2.64 919 2.80 966 3.15 1011 3.55 1054 3.94 3600 717 1.65 777 1.94 835 2.29 885 2.63 908 2.79 932 2.95 978 3.30 1022 3.69 1065 4.10 3700 733 1.77 792 2.07 849 2.42 899 2.78 922 2.95 945 3.11 990 3.45 1034 3.84 1076 4.26 3750 742 1.84 800 2.14 856 2.49 907 2.86 929 3.03 952 3.20 997 3.54 1040 3.93 1082 5.27 3800 750 1.90 807 2.21 863 2.56 914 2.93 936 3.11 958 3.28 1003 3.62 1045 4.01 1087 4.43 3900 767 2.04 822 2.35 877 2.71 928 3.09 950 3.27 972 3.45 1015 3.80 1057 4.18 1098 4.60 4000 783 2.18 838 2.50 891 2.86 942 3.26 964 3.45 986 3.63 1028 3.99 1070 4.36 1110 4.78 4100 800 2.34 854 2.66 905 3.02 956 2.43 978 3.62 1000 3.81 1042 4.18 1082 4.56 1122 4.97 4200 817 2.49 869 2.82 920 3.19 970 3.60 992 3.80 1015 4.00 1055 4.38 1095 4.76 1134 5.16 4250 826 2.58 877 2.91 928 3.28 977 3.69 999 3.90 1022 4.10 1062 4.49 1102 4.87 1140 5.27 4300 834 2.66 885 3.00 935 3.37 984 3.78 1006 3.99 1029 4.20 1069 4.59 1108 4.98 1147 5.38

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 3.)

2. indicates ﬁeld-supplied motor and drive required.

3. Standard drive range is 685 to 935 rpm. All other rpms require a ﬁeld-supplied drive.

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

0.2 0.4 0.6 0.8 0.9 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

6. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

7. Interpolation is permissible. Do not extrapolate.

Page 22

Table 13 — Fan Performance, 48TJ012 — Horizontal Discharge Units

AIRFLOW

(Cfm)

3000 552 0.68 632 0.87 701 1.05 761 1.22 816 1.36 871 1.54 918 1.67 967 1.89 1010 2.09 1063 2.46 3100 565 0.74 644 0.93 711 1.12 772 1.31 825 1.45 879 1.63 928 1.78 973 1.94 1018 2.17 1070 2.51 3200 578 0.81 656 1.00 723 1.20 782 1.39 835 1.55 887 1.71 937 1.90 981 2.04 1026 2.26 1075 2.57 3300 591 0.88 668 1.08 734 1.28 793 1.47 845 1.65 895 1.80 946 2.00 991 2.16 1032 2.32 1080 2.64 3400 605 0.96 680 1.16 745 1.36 803 1.56 856 1.75 904 1.91 953 2.10 1000 2.29 1041 2.44 1083 2.65 3500 619 1.04 691 1.23 755 1.44 813 1.65 867 1.86 914 2.03 961 2.20 1009 2.41 1051 2.57 1090 2.74 3600 633 1.13 703 1.31 766 1.52 824 1.74 877 1.97 924 2.15 970 2.32 1017 2.53 1061 2.72 1099 2.88 3700 648 1.23 714 1.39 777 1.61 835 1.85 887 2.07 935 2.28 980 2.45 1024 2.64 1069 2.87 1109 3.03 3800 662 1.33 726 1.51 789 1.72 846 1.95 897 2.18 946 2.40 989 2.58 1033 2.76 1077 2.99 1118 3.20 3900 677 1.44 738 1.61 801 1.82 857 2.06 908 2.29 956 2.53 1000 2.73 1042 2.91 1085 3.12 1127 3.36 4000 692 1.55 750 1.73 813 1.94 868 2.17 918 2.40 967 2.66 1010 2.87 1052 3.06 1093 3.24 — — 4100 707 1.67 762 1.84 825 2.05 878 2.28 929 2.53 977 2.78 1021 3.02 1062 3.22 1102 3.41 — — 4200 722 1.80 775 1.97 837 2.16 889 2.40 941 2.66 987 2.91 1032 3.17 1072 3.38 ———— 4300 737 1.94 787 2.09 848 2.27 900 2.52 952 2.80 999 3.04 1042 3.32 —————— 4400 752 2.08 800 2.21 860 2.39 912 2.66 962 2.93 1008 3.19 ———————— 4500 768 2.24 814 2.35 871 2.51 924 2.80 973 3.07 1019 3.34 ———————— 4600 783 2.40 827 2.50 883 2.64 937 2.95 983 3.21 —————————— 4700 799 2.56 841 2.64 894 2.77 949 3.10 994 3.36 —————————— 4800 814 2.74 855 2.80 906 2.91 961 3.26 ———————————— 4900 — — 868 2.90 918 3.05 972 3.40 ———————————— 5000 — — 883 3.10 931 3.21 — —————————————

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 4.)

2. indicates alternate motor and/or drive required.

3. indicates ﬁeld-supplied motor and drive required.

4. Standard drive range is 685 to 935 rpm. Alternate drive range is 835 to 1085 rpm. All other rpms require a ﬁeld-supplied drive.

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

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

7. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

8. Interpolation is permissible. Do not extrapolate.

Table 14 — Fan Performance, 48TJ014 — Horizontal Discharge Units

AIRFLOW

(Cfm)

3700 677 1.20 748 1.43 810 1.65 869 1.89 928 2.17 984 2.43 1036 2.68 1080 2.90 1114 3.07 1135 3.17 3800 691 1.28 761 1.52 822 1.75 880 1.98 937 2.28 993 2.55 1046 2.81 1092 3.05 1129 3.25 1156 3.39 3900 705 1.37 773 1.62 834 1.86 891 2.08 947 2.39 1002 2.66 1055 2.94 1102 3.20 1143 3.42 1174 3.59 4000 720 1.47 786 1.71 847 1.97 902 2.19 957 2.50 1011 2.79 1064 3.07 1112 3.34 1155 3.59 1190 3.80 4100 734 1.56 800 1.82 860 2.09 914 2.31 967 2.60 1021 2.91 1072 3.20 1121 3.49 1165 3.76 1203 3.99 4200 749 1.66 813 1.92 873 2.21 926 2.44 978 2.71 1030 3.04 1081 3.34 1130 3.64 1175 3.92 1215 4.18 4300 764 1.77 826 2.04 886 2.33 938 2.57 989 2.83 1040 3.18 1090 3.48 1139 3.79 1185 4.08 1226 4.36 4400 779 1.88 840 2.16 899 2.46 951 2.71 1000 2.96 1050 3.31 1100 3.63 1148 3.94 1194 4.25 1236 4.54 4500 793 1.99 854 2.28 912 2.59 963 2.86 1012 3.09 1061 3.43 1109 3.78 1157 4.09 1203 4.42 1246 4.72 4600 808 2.11 868 2.42 925 2.73 975 3.00 1024 3.25 1071 3.56 1119 3.93 1166 4.26 1212 4.58 1255 4.91 4700 822 2.24 882 2.56 937 2.86 988 3.16 1036 3.42 1082 3.70 1129 4.09 1175 4.43 1221 4.76 1264 5.09 4800 837 2.37 896 2.71 950 3.00 1001 3.32 1048 3.59 1093 3.86 1139 4.24 1185 4.60 1230 4.93 1273 5.28 4900 852 2.51 910 2.86 963 3.15 1014 3.48 1060 3.76 1105 4.02 1150 4.38 1194 4.77 1239 5.12 1282 5.47 5000 867 2.65 924 3.01 977 3.30 1027 3.65 1073 3.94 1117 4.20 1161 4.54 1204 4.95 1248 5.31 1291 5.66 5100 882 2.79 938 3.17 990 3.46 1040 3.82 1085 4.12 1129 4.40 1172 4.71 1214 5.13 1257 5.51 — — 5200 896 2.95 952 3.33 1003 3.63 1053 4.00 1098 4.30 1141 4.60 1183 4.91 1225 5.29 1267 5.70 — — 5300 911 3.11 967 3.50 1017 3.80 1066 4.18 1111 4.50 1153 4.80 1194 5.08 1236 5.47 ———— 5400 926 3.27 981 3.68 1030 3.98 1079 4.35 1124 4.70 1166 5.01 1206 5.29 1247 5.65 ———— 5500 940 3.44 995 3.86 1044 4.17 1092 4.54 1137 4.91 1178 5.22 1218 5.52 —————— 5600 955 3.62 1010 4.04 1058 4.38 1105 4.73 1150 5.12 1190 5.44 1230 5.75 —————— 5700 970 3.80 1024 4.23 1072 4.59 1118 4.93 1163 5.34 1203 5.67 ———————— 5800 985 3.99 1039 4.42 1086 4.80 1131 5.14 1176 5.56 —————————— 5900 1000 4.18 1053 4.62 1100 5.02 1144 5.36 ———————————— 6000 1015 4.39 1068 4.83 1114 5.25 1158 5.58 ———————————— 6100 1030 4.59 1083 5.04 1128 5.48 —————————————— 6200 1046 4.81 1097 5.26 1142 5.71 ——————————————

Bhp — Brake Horsepower Input to Fan

NOTES:

1. Boldface indicates ﬁeld-supplied drive required. (See Note 4.)

2. indicates alternate motor and/or drive required.

3. indicates ﬁeld-supplied motor and drive required.

4. Standard drive range is 860 to 1080 rpm. Alternate drive range is 900 to 1260 rpm. All other rpms require a ﬁeld-supplied drive.

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

LEGEND

EXTERNAL STATIC PRESSURE (in. wg)

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

7. Use of a ﬁeld-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

8. Interpolation is permissible. Do not extrapolate.

Page 23

START-UP

Unit Preparation —

stalled in accordance with these installation instructions and applicable codes. Make sure that Start-Up Checklist has been completed and ﬁlled out.

Make sure that unit has been in-

Return-Air Filters — Make sure correct ﬁlters are in-

stalled in ﬁlter tracks (see Table 1). Do not operate unit without return-air ﬁlters.

Outdoor-AirInlet Screens— Outdoor-airinlet screens

must be in place before operating unit.

Compressor Mounting — Compressors are inter-

nally spring mounted. Do not loosen or remove compressor holddown bolts. On 48TJ014 units, remove the tiedown bands that hold the compressors together.

Internal Wiring — Check all electrical connections in

unit control boxes. Tighten as required.

Refrigerant Service Ports — Each refrigerant sys-

tem 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 when ordered as an option.

Compressor Rotation — On 3-phase units with scroll

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

pressure does not rise to normal levels:

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

2. Turn off 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

direction, the unit will make an elevated level of noise and will not provide cooling.

Cooling — To start 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 26.

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 system selector switch at OFF position. Resetting thermostat at a position above room temperature shuts unit off temporarily until space temperature exceeds thermostat setting.

MainBurners — 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 the 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 15 for the correct oriﬁce to use at high altitudes.

NOTE: Upon a call for heat, the main burners will remain on for a minimum of 60 seconds.

Heating

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

2. Turn on electrical supply and open 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 start.

5. After a call for heating, the main burners should light within 5 seconds. If the burners do not light, then there is a 22-second delay before another 5-second try. If the burners still do not light, the time delay is repeated. If the burners do not light within 15 minutes, there is a lockout. To 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 the thermostat temperature is satisﬁed.

8. Adjust airﬂow to obtain a temperature rise within the range speciﬁed on the unit nameplate and in Table 1.

NOTE: The default value for the evaporator-fan motor ON and 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 (light-emitting diode) is observed, the evaporator-fan ON/OFF delay has been modiﬁed. 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.Ifthe limit switch trips during this period, the evaporator-fan OFF delay will increase 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 system selector switch at OFF position. Resetting heating selector lever below room temperature will shut unit off temporarily until space temperature falls below thermostat setting.

Page 24

Table 15 — Altitude Compensation*

125,000, 180,000, AND

224,000 BTUH

ELEVATION

(Ft)

0-2,000 31 41 30 38

2,000 32 42 30 39 3,000 32 42 31 40 4,000 32 42 32 41 5,000 33 43 33 42 6,000 34 43 34 43 7,000 35 44 35 43 8,000 36 44 36 44

9,000 37 45 37 44 10,000 38 46 38 45 11,000 39 47 39 45 12,000 40 47 40 46 13,000 41 48 41 47 14,000 42 48 42 47

*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.

†Oriﬁce available through your local distributor.

NOMINAL INPUT

Natural

Gas

Oriﬁce

Size†

Liquid

Propane

Oriﬁce

Size†

250,000 BTUH

NOMINAL INPUT

Natural

Gas

Oriﬁce

Size†

Liquid

Propane

Oriﬁce

Size†

Safety Relief — A soft-solder joint at the suction line

Schrader port provides pressure relief under abnormal temperature and pressure conditions.

Ventilation (Continuous Fan) — Set fan and sys-

tem 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.

Operating Sequence

COOLING, UNITS WITHOUT ECONOMIZER — When thermostat calls for cooling, terminals G and Y1 are energized. The indoor (evaporator) fan contactor (IFC) and compressor contactor no. 1 (C1) are energized, and evaporatorfan motor, compressor no. 1, and condenser fan start. The condenser-fan motor runs continuously while unit is cooling. If the thermostat calls for a second stage of cooling by energizing Y2, compressor contactor no. 2 (C2) is energized and compressor no. 2 starts.

When the thermostat is satisﬁed, C1 and C2 are deenergized and the compressors and outdoor (condenser) fan motor (OFM) shut off. After a 30-second delay, the indoor (evaporator) fan motor (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 is energized. In order 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 (IDM) is then 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 and W2 are deenergized, the IFM stops after a 45-second time-off delay.

COOLING, UNITS WITH DURABLADE ECONOMIZER — When the outdoor-air temperature is above the OAT (outdoor-air thermostat) setting and the room thermostat calls for cooling, compressor contactor no. 1 is energized to start

compressor no. 1 and the outdoor (condenser) fan motor (OFM). The indoor (evaporator) fan motor (IFM) is energized and the economizer damper moves to the minimum position. Upon a further call for cooling, compressor contactor no. 2 will be energized, starting compressor no. 2. After the thermostat is satisﬁed, the damper moves to the fully closed position when using an auto fan or to the minimum position when using a continuous fan.

When the outdoor-air temperature is below the OAT setting and the thermostat calls for cooling, the economizer dampers move 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 to 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 will move to the fully closed position when using an auto fan or to the minimum position when using a continuous fan.

If the outdoor air alone cannot satisfy the cooling requirements of the conditioned space, economizer cooling is integrated with mechanical cooling, providing second-stage cooling. Compressor no. 1 and the condenser fan will be energized and the position of the economizer damper will be determined by the supply-air temperature. Compressor no. 2 is locked out.

When the second stage of cooling is satisﬁed, the compressor and OFM will be deenergized. The damper position will be determined by the supply-air temperature.

After a 30-second delay, the IFM shuts off. If the thermostat fan selector switch is in the ON position, the IFM will run continuously.

COOLING UNITS WITH PARABLADE ECONOMIZER — When the outdoor air is above the enthalpy control setting, and the room thermostat calls for cooling, the compressor contactor no. 1 is energized to start compressor no. 1 and the outdoor (condenser) fan motor. The indoor (evaporator) fan motor is energized and the economizer damper moves to the minimum position. Upon further call for cooling, compressor contactor no. 2 is energized, starting compressor no. 2. After the room thermostat is satisﬁed the damper will spring return to the fully closed position.

When the outdoor air is below the enthalpy control setting and the thermostat calls for cooling, the economizer outdoor air damper is opened proportionally to maintain between 50 and 56 F at the mixed air sensor. If outside air alone cannot satisfy the cooling requirements, economizer cooling is integrated with mechanical cooling and the second compressor is locked out. When the room thermostat is satisﬁed, the damper will spring return to the fully closed position.

HEATING, UNITSWITH ECONOMIZER — When the thermostat calls for heating, terminal W1 is energized. In order 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 then 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 is energized and the high-ﬁre solenoid on the main gas valve (MGV) is energized. When the thermostat is satisﬁed and W1 and W2 are 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.

Page 25

SERVICE

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

Cleaning — Inspect unit interior at the beginning of each

heating and cooling season and as operating conditions require.

EVAPORATOR COIL — Clean coil as required. Inspect coil at beginning of heating and cooling seasons.

1. Turn unit power off.Remove evaporator coil access panel.

2. If economizer is installed, remove economizer by disconnecting Molex plug and removing economizer mounting screws. Refer to Accessory Economizer Installation Instructions or Optional Economizer sections on pages 12 and 15 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 to remove foreign material.

5. Flush condensate pan after completion.

6. Reinstall economizer and ﬁlters.

7. Reconnect wiring.

8. Replace access panels.

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

One-Row Coils — Washcoil with commercial cleaner. Clean outer surfaces with a stiff brush in the normal manner. It is not necessary to remove top panel.

2-Row Coils — Clean coil as follows:

1. Turn off unit power.

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

3. Remove condenser coil corner post. See Fig. 37. To hold top panel open, place coil corner post between top panel and center post. See Fig. 38.

4. Remove screws securing coil to center post.

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. 39.

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 stiffbrush 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.

9. 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.

Fig. 37 — Cleaning Condenser Coil

Fig. 38 — Propping Up Top Panel

Fig. 39 — Separating Coil Sections

Lubrication

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

FAN-MOTOR BEARINGS — Fan-motor bearings are of

the permanently lubricated type. No further lubrication is required. No lubrication of condenser- or evaporator-fan

motors is required.

Page 26

Condenser-Fan Adjustment (Fig. 40)

1. Shut off unit power supply.

2. Remove condenser-fanassembly (grille, motor, motor cover, and fan) and loosen fan hub setscrews.

3. Adjust fan height as shown in Fig. 40.

4. Tighten setscrews and replace condenser-fan assembly.

48TJ UNIT VOLTAGE FAN HEIGHT ‘‘A’’ (in.)

208/230 V 2.75

460 V and 575 V 3.50

Fig. 40 — Condenser-Fan Adjustment

ManualOutdoor-Air Damper— If outdoor-air damper

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

EconomizerAdjustment— Refer to Optional Econo-

mizer sections on pages 12 and 15.

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 affectthereading. Indoorair 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 appropriate 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. 44, Circuit 2):

Outdoor Temperature ..........................85F

Suction Pressure ...........................74psig

Suction Temperature should be ..................56F

(Suction temperature may vary±5F.)

If Chargemastert charging device is used, temperature and pressure readings must be accomplished using the charging charts.

CondenserCoil Grille — Condenser coil grille is shipped

factory-installed. No adjustments are required.

Refrigerant Charge — Amount of refrigerant charge

is listed on unit nameplate (also refer to Table 1). Refer to Carrier GTAC 2-5 Charging, Recovery, Recycling, and Reclamation training manual and the following procedures.

Unit panels must be in place when unit is operating dur-

ing charging procedure. NO CHARGE — Use standard evacuating techniques. After

evacuating system, weigh in the speciﬁed amount of refrigerant (refer to Table 1).

LOW CHARGE COOLING — Using Cooling Charging Charts, Fig. 41-44, vary refrigerant until the conditions of the appropriate chart are met. Note the charging charts are different from the type normally used. The 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

Fig. 41 — Cooling Charging Chart; 48TJ008

Page 27

Fig. 42 — Cooling Charging Chart; 48TJ009

Fig. 43 — Cooling Charging Chart; 48TJ012

Page 28

Fig. 44 — Cooling Charging Chart; 48TJ014

Flue Gas Passageways — To inspect the ﬂue col-

lector 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 below.

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

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

Combustion-Air Blower — Clean periodically to as-

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

1. Slide burner access panel out.

2. Remove the 6 screws that attach induced-draft motor hous-

ing to vestibule plate (Fig. 45).

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 blower

housing 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. 12). Module contains a self-diagnostic LED. A single LED on the IGC provides a visual display of operational or sequential problems when the power supply is interrupted. When a break in power occurs, the module will be reset (resulting in a loss of fault

history) and the indoor (evaporator) fan ON/OFF times will be reset. For additional information, refer to the Start-Up, Heating section on page 23. The LED error code can be observed through the viewport. See Fig. 12. During servicing refer to the label on the control box cover or Table 16 for an explanation of LED error code descriptions.

If lockout occurs, unit may be adjusted by interrupting power

supply to unit for at least 5 seconds.

Table 16 — LED Error Code Description*

LED INDICATION ERROR CODE DESCRIPTION

ON Normal Operation

OFF Hardware Failure

1 Flash† Evaporator Fan On/Off Delay Modiﬁed 2 Flashes Limit Switch Fault 3 Flashes Flame Sense Fault 4 Flashes 4 Consecutive Limit Switch Faults 5 Flashes Ignition Lockout Fault 6 Flashes Induced-Draft Motor Fault 7 Flashes Rollout Switch Fault 8 Flashes Internal Control Fault

LED — Light-Emitting Diode

*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 op-

erate when this code is displayed.

IMPORTANT: Refer to Troubleshooting Tables17-21 for additional information.

Main Burners — At the beginning of each heating sea-

son, 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.

Page 29

REMOVAL AND REPLACEMENT OF GAS TRAIN (Fig. 45 and 46)

1. Shut off manual gas valve.

2. Shut off power to unit.

3. Slide out burner section side panel (not shown).

4. Disconnect gas piping at unit gas valve.

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

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

7. Remove the 2 screws that attach the burner rack to the vestibule plate.

8. Slide the burner tray out of the unit (Fig. 46).

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. 47.

5. Reinstall burners on rack.

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

INDUCED-DRAFT MOTOR

MANIFOLD PRESSURE TAP

GAS VALVE

Fig. 45 — Burner Section Details

ROLLOUT SWITCH

BURNER SECTION

FLUE

FLUE EXHAUST

EXHAUST

VESTIBULE PLATE

Replacement Parts — A complete list of replace-

ment parts may be obtained from any Carrier distributor upon request.

Fig. 46 — Burner Tray Details

Page 30

48TJD008,009

48TJD012, 48TJE008,009

125,000 BTUH INPUT

120,000-180,000 BTUH INPUT

180,000-224,000 BTUH INPUT 200,000-250,000 BTUH INPUT

48TJD014; 48TJE012 48TJE014; 48TJF012

NOTE: Dimensions in ( ) are millimeters.

48TJF008,009

Fig. 47 — Spark Gap Adjustment

Page 31

TROUBLESHOOTING

Table 17 — 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)

LEGEND

IGC — Integrated Gas Unit Controller LED — Light-Emitting Diode

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

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

The IGC sensed ﬂame that should not be present. Reset unit. If problem persists, replace control board. Inadequate airﬂow to unit. Check operation of indoor (evaporator) fan motor and

Unit unsuccessfully attempted ignition for 15 minutes. Check ignitor and ﬂame sensor electrode spacing, gaps,

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

Rollout switch has opened. Rollout switch will automatically reset, but IGC will con-

Microprocessor has sensed an error in the software or hardware.

breaker, 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.

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

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

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.

tinue to 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 21 — Heating Service Troubleshooting for additional troubleshooting information.

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 andmaybedamagedifthe necessary precautions are not taken.

Page 32

Table 18 — Durablade Economizer Troubleshooting

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 — Common Power EC — Enthalpy Control IFC — Indoor (Evaporator) Fan Contactor IFO — Indoor (Evaporator) Fan On OAT — Outdoor-Air Thermostat PL — Plug SAT — Supply-Air Thermostat SW — Economizer Position Switch

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

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

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

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

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

Verify economizer control board is functioning properly.

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

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

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

that 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. blade. Check that SW1 is in the NC (normally closed) position.

2. Check diode D1. If diode is not functioning properly, replace D1.

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.

verify that 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.

control 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.

label diagram).

2. Check diode D2. If diode is not functioning properly, replace D2.

1. After verifying that the wiring is correct, modulate the damper to the minimum position. Remove the call for G (evaporator fan).

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.

board is 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.

that there is a minimum of 18 vdc at the positive motor terminal. If a minimum if 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 close-on-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 33

Table 19 — PARABLADE Economizer Service Troubleshooting

PROBLEM CAUSE REMEDY

Damper does not open.

Economizer operation limited to minimum position.

Damper does not close.

Damper does not open or close according to enthalpy readings.

LEGEND

LED — Light-Emitting Diode

Evaporator fan not on. Check wiring between G on connection board and indoor (evaporator) No power to economizer motor. 1. Disconnect power at TR and TR1. Disconnect jumper across P

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

Economizer control module failure.

No power to economizer. 1. Disconnect power at TR and TR1. Disconnect jumper across P

Spring return failure. If power to unit is off and damper does not close, check for a bound

Economizer motor failure. If the economizer control module is functioning properly, verify that

Sensor incorrectly wired or bad. To verify sensor operation, reconnect the + lead of the outdoor en-

fan contactor.

and P1.

2. Connect jumper across TR and 1.

3. Connect jumper across T1 and T.

4. If connected, remove enthalpy sensor from terminals S Factory-installed 620 ohm resistor should be connected to terminals SRand +.

5. Apply power (24 vac) to terminals TR and TR1. The LED should be off and the damper should be in the closed position.

6. Disconnect the factory-installed 620 ohm resistor from terminals S

and +. The LED should light up and the motor should drive to-

wards open. If this does not happen, replace the economizer control module.

verify that there is a minimum of 24 vac at terminals TR and TR1. If the motor is not operating, replace the motor.

1. To simulate high or low enthalpy, reconnect the factory-installed 620 ohm resistor across terminals S

2. Connect 1.2 Kohm checkout resistor across terminals Soand +. Turn the enthalpy set point to ‘‘A.’’ The LED should turn on, indicating low enthalpy. The motor should drive towards open. If LED does not light, replace module. If motor does not drive open, check motor operation.

3. Turn the enthalpy set point to ‘‘D.’’ The LED should turn off, indicating high enthalpy. The motor should drive towards closed. If these actions do not occur, replace module.

4. Disconnect 1.2 Kohm checkout resistor before resuming operation. and P1.

2. Connect jumper across TR and 1.

3. Connect jumper across T1 and T.

4. If connected, remove enthalpy sensor from terminals S Factory-installed 620 ohm resistor should be connected to terminals SRand +.

5. Apply power (24 vac) to terminals TR and TR1. The LED should be off and the damper should be in the closed position.

6. Disconnect the factory-installed 620 ohm resistor from terminals S

and +. The LED should light up and the motor should drive to-

wards open. If this does not happen, replace the economizer control module.

linkage. If linkage is not bound, then internal spring may be broken. Replace actuator.

there is a minimum of 24 vac at terminals TR and TR1. If the motor is not operating, replace the motor.

thalpy sensor to the + terminal of the economizer control module. Connect a DC milliammeter between terminals S control module and terminal S of the enthalpy sensor. The milliammeter should indicate between 3 and 25 mA if the sensor is operating properly. If the milliammeter indicates 0, the sensor may be wired backwards. If any other readings are shown, replace the sensor.

and +.

of the economizer

Page 34

Table 20 — Cooling Service Troubleshooting

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 makes excessive noise (48TJ014 scroll only)

Compressor operates continuously.

Excessive head pressure. Dirty air ﬁlter. Replace ﬁlter.

Head pressure too low. Low refrigerant charge. Check for leaks, repair, and recharge.

Excessive suction pressure.

Suction pressure too low. Dirty air ﬁlter. Replace ﬁlter.

Compressor no. 2 will not run.

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. Check wiring and repair or replace. Compressor motor burned out, seized, or internal

overload open. Defective run/start capacitor, overload, or start relay. Determine cause and replace. One leg of 3-phase power dead. Replace fuse or reset circuit breaker.

Refrigerant overcharge or undercharge. Recover refrigerant, evacuate system, and recharge 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. Determine cause and replace. Defective thermostat. Replace thermostat. Faulty condenser-fan motor or capacitor. Replace. Restriction in refrigerant system. Locate restriction and remove. Compressor rotating in wrong direction. Reverse the 3-phase power leads as described

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 condenser coil. Clean coil. Refrigerant overcharged. Remove excess refrigerant. Air in system. Recover refrigerant, evacuate system, and recharge. Condenser air restricted or air short-cycling. Determine cause and correct.

Compressor valves leaking. Replace compressor. Restriction in liquid tube. Remove restriction. High heat load. Check for source and eliminate. Compressor valves leaking. Replace compressor. Refrigerant overcharged. Recover excess refrigerant.

Low refrigerant charge. Check for leaks, repair, and recharge. Metering device or low side restricted. Remove source of restriction. Insufficient evaporator airﬂow. Increase air quantity. Check ﬁlter and replace if

Temperature too low in conditioned area. Reset thermostat. Field-installed ﬁlter drier restricted. Replace. Unit in economizer mode. Proper operation; no remedy necessary.

Replace component.

Determine cause. Replace compressor.

Determine cause. to nameplate.

on page 23.

necessary.

Page 35

Table 21 — Heating Service Troubleshooting

PROBLEM CAUSE REMEDY

Burners will not ignite.

Inadequate heating. Dirty air ﬁlter. Clean or replace ﬁlter as necessary.

Poor ﬂame characteristics.

Burners will not turn off.

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

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 overcur-

Miswired or loose connections Check all wiring and wirenut connections. Burned-out heat anticipator in thermostat. Replace thermostat. Broken thermostat wires. Run continuity check. Replace wires, if necessary.

Gas input to unit too low. Check gas pressure at manifold. Clock gas meter for

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 op-

Limit switch cycles main burners. Check rotation of blower, thermostat heat anticipator setToo 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 for a one minute minimum.

Adjust as needed. gas line of air, allow gas to dissipate for at least 5 min-

utes before attempting to relight unit. Check gas valve.

rent protection require a cool down period before resetting.

input. If too low, increase manifold pressure, or replace with correct oriﬁces.

tional blower, as suitable for individual units. tings, and temperature rise of unit. Adjust as needed.

Check economizer operation. Check all screws around ﬂue outlets and burner com-

partment. Tighten as necessary. Cracked heat exchanger. Overﬁred unit — reduce input, change oriﬁces, or adjust

gas line or manifold pressure. Check vent for restriction. Clean as necessary. Check oriﬁce to burner alignment. Wait until mandatory one minute time period has

elapsed or power to unit.

LEGEND AND NOTES FOR FIG. 48

IMPORTANT: Refer to unit wiring label for actual unit wiring information.

AHA — Adjustable Heat Anticipator BR — Burner Relay C—Contactor, Compressor CAP — Capacitor CB — Circuit Breaker CC — Cooling Compensator COMP — Compressor Motor CR — Control Relay D—Diode EC — Enthalpy Control EPS — Economizer Pressure Switch EQUIP — Equipment FPT — Freeze-Protection

GND — Ground GVR — Gas Valve Relay HPS — High-Pressure Switch HS — Hall Effect Sensor I—Ignitor IDM — Induced-Draft Motor IFC — Indoor (Evaporator) Fan

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 for ﬁrst stage at 0.14 amp, second stage at

0.2 amp.

Thermostat

Contactor

IFM — Indoor (Evaporator) Fan Motor IGC — Integrated Gas Unit

LED — Light Emitting Diode LPS — Low-Pressure/Loss-of-Charge

LS — Limit Switch MGV — Main Gas Valve MTR — Motor OAT — Outdoor Air Thermostat OFM — Outdoor-Fan Motor PL — Plug Assembly QT — Quadruple Terminal R—Relay RS — Rollout Switch SAT — Supply Air Thermostat SEN — Sensor TC — Thermostat-Cooling TH — Thermostat-Heating TRAN — Transformer

Controller

Switch

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

5. Use copper conductors only.

6. TRAN is wired for 230 v unit. If unit is to be run with 208 v power supply,disconnect BLK wire from 230 v tap (RED) and connect to 200 v tap (BLU). Insulate end of 230 v tap.

7. When economizer assembly is installed move GRA wire from connection board (Y1) to GRA wire from PL6,5; move ORN wire from connection board (Y2) to ORN wire from PL6,9, on economizer assembly.

Page 36

Fig. 48 — Typical Wiring Schematic and Component Arrangement

Page 37

Page 38

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. 564-934 Printed in U.S.A. Form 48TJ-13SI Pg 38 9-96 Replaces: 48TJ-10SI

Page 39

Page 40

I. PRELIMINARY INFORMATION

START-UP CHECKLIST

(Remove and Store in Job File)

MODEL NO.: DATE:

SERIAL NO.: TECHNICIAN:

II. PRE-START-UP (insert checkmark in box as each item is completed)

M VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT M REMOVE SHIPPING TIE DOWN BANDS ON COMPRESSOR (SIZE 014 ONLY) PER INSTALLATION

INSTRUCTIONS

M VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS M CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS M CHECK GAS PIPING FOR LEAKS M CHECK THAT INDOOR-AIR FILTERS ARE CLEAN AND IN PLACE M VERIFY THAT UNIT INSTALLATION IS LEVEL M CHECK FAN WHEELS AND PROPELLERS FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW

TIGHTNESS

III. START-UP

ELECTRICAL

SUPPLY VOLTAGE L1-L2 L2-L3 L3-L1 COMPRESSOR AMPS L1 L2 L3 COMPRESSOR AMPS L1 L2 L3 INDOOR-FAN AMPS L1 L2 L3

TEMPERATURES

OUTDOOR-AIR TEMPERATURE DB RETURN-AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB GAS HEAT SUPPLY AIR DB

PRESSURES

GAS INLET PRESSURE IN. WG GAS MANIFOLD PRESSURE IN. WG (HI FIRE) REFRIGERANT SUCTION PSIG — CIRCUIT NO. 1 PSIG — CIRCUIT NO. 2 REFRIGERANT DISCHARGE PSIG — CIRCUIT NO. 1 PSIG — CIRCUIT NO. 2

M VERIFY REFRIGERANT CHARGE USING CHARGING TABLES

M VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION (48TJ014 ONLY)

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. 564-934 Printed in U.S.A. Form 48TJ-13SI Pg CL-1 9-96 Replaces: 48TJ-10SI

CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE

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