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Table 1 — Physical Data

BASE UNIT 48

TJE/TJF004

TJD/TJE/TJF005

TJD/TJE/TJF006

TJD/TJE/TJF007

NOMINAL CAPACITY (tons)

3

4

5

6

OPERATING WEIGHT (lb)

Unit

460

470

490

565

Varislide™ Economizer

34

34

34

34

PARABLADE Economizer

42

42

42

42

Roof Curb

115

115

115

115

COMPRESSOR

Hermetic (Reciprocating)

Quantity

1

1

1

1

Oil (oz)

50

50

50

65

REFRIGERANT TYPE

R-22

Operating Charge

(lb-oz)

3-6

4-11

5-13

9-0

CONDENSER COIL

Enhanced Copper Tubes, Aluminum Lanced Fins

Rows...Fins/in.

1...17

1...17

1...17

2...17

Total Face Area (sq ft)

7.36

11.39

13.19

10.42

CONDENSER FAN

Propeller Type

Nominal Cfm

3500

4000

4000

4000

Quantity...Diameter (in.)

1...22.0

1...22.0

1...22.0

1...22.0

Motor Hp...Rpm

1

4

...1100

1

4

...1100

1

4

...1100

1

4

...1100

Watts Input (Total)

325

325

325

325

EVAPORATOR COIL

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

Rows...Fins/in.

2...15

2...15

3...15

4...15

Total Face Area (sq ft)

4.17

5.5

5.5

5.5

EVAPORATOR FAN

Centrifugal Type

Quantity...Size (in.)

Std

1...10 x 10

1...10 x 10

1...11 x 10

1...10 x 10

Alt

1...10 x 10

1...10 x 10

1...10 x 10

Type Drive

Std

Direct

Direct

Direct

Belt

Alt

Belt

Belt

Belt

Nominal Cfm

Std

1200

1600

2000

2400

Alt

1200

1600

2000

Maximum Continuous Bhp

Std

.34

.75

1.20

2.40

Alt

1.00

1.00

1.80

Motor Frame Size

Std

48

48

48

56

Alt

48

48

56

Nominal Rpm High/Low

Std

860/800

1075/970

1075/970

Alt

Fan Rpm Range

Std

1070-1460

Alt

760-1090

840-1185

900-1300

Motor Bearing Type

Ball

Ball

Ball

Ball

Maximum Allowable Rpm

2100

2100

2100

2100

Motor Pulley Pitch Diameter Min/Max (in.)

Std

2.8/3.8

Alt

1.9/2.9

1.9/2.9

2.4/3.4

Nominal Motor Shaft Diameter (in.)

Std

1

2

1

2

1

2

5

8

Alt

1

2

1

2

1

2

Fan Pulley Pitch Diameter (in.)

Std

4.5

Alt

4.5

4.0

4.5

Belt, Quantity...Type...Length (in.)

Std

1...A...40

Alt

1...A...39

1...A...36

1...A...39

Pulley Center Line Distance (in.)

Std

14.7-15.5

Alt

10.0-12.4

10.0-12.4

14.7-15.5

Speed Change per Full Turn of

Std

80

Movable Pulley Flange (rpm)

Alt

65

70

80

Movable Pulley Maximum Full Turns

Std

5

From Closed Position

Alt

5

5

5

Factory Setting

Std

3

Alt

3

3

3

Factory Speed Setting (rpm)

Std

1225

Alt

890

980

1060

Fan Shaft Diameter at Pulley (in.)

5

8

5

8

5

8

5

8

LEGEND

Bhp — Brake Horsepower

*Rollout switch is manual reset.

†The 48TJD005-007 and 48TJE004 (74,000 Btuh) units have 2 burners. The 48TJE005-

007 and 48TJF004 (115,000 Btuh) units and the 48TJF005-007 (150,000 Btuh) units have 3
burners.

**Indicates a FIOP (factory-installed option).

††Requires an optional/accessory controls upgrade kit.

7

Summary of Contents for 48TJD Series

Page 1: ...o pres sure greater than 1 2 psig it must be re placed before use When pressure testing field supplied gas piping at pressures of 1 2 psig or less a unit connected to such piping must be isolated by m...

Page 2: ...e of 50 F dry bulb or an intermittent opera tion down to 45 F dry bulb such as when used with a night set back thermostat Step 3 Install External Trap for Condensate Drain The unit s 3 4 in condensate...

Page 3: ...u the Bottom ROOF CURB ACCESSORY A UNIT SIZE 48TJ CRRFCURB001A00 18 29 356 004 007 CRRFCURB002A00 28 09 610 NOTES 1 Roof curb accessory is shipped unassembled 2 Insulated panels 3 Dimensions in are in...

Page 4: ...e 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 con nection must not be less than 4 in wg or gr...

Page 5: ...in the legend for Table 2 Note 2 to determine the percent of voltage imbalance Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical com...

Page 6: ...ging to prevent rigging straps from damaging unit UNIT MAX WEIGHT A B C Lb Kg in mm in mm in mm 48TJE TJF004 510 231 73 69 1872 37 50 953 33 35 847 48TJD TJE TJF005 520 236 48TJD TJE TJF006 540 245 48...

Page 7: ...600 2000 2400 Alt 1200 1600 2000 Maximum Continuous Bhp Std 34 75 1 20 2 40 Alt 1 00 1 00 1 80 Motor Frame Size Std 48 48 48 56 Alt 48 48 56 Nominal Rpm High Low Std 860 800 1075 970 1075 970 Alt Fan...

Page 8: ...80 25 55 35 65 50 80 25 55 35 65 50 80 Manifold Pressure in wg Natural Gas 3 5 3 5 3 5 3 5 Liquid Propane 3 5 3 5 3 5 3 5 Gas Valve Quantity 1 1 1 1 Field Gas Connection Size in 1 2 1 2 1 2 1 2 HIGH...

Page 9: ...jurisdiction may prevail a Between unit flue side and combustible surfaces 36 inches b Bottom of unit to combustible surfaces when not using curb 1 inch Bot tom of base rail to combustible surfaces wh...

Page 10: ...E Follow all local codes SPACING OF SUPPORTS STEEL PIPE X DIMENSIONS feet NOMINAL DIAMETER in 1 2 6 3 4 or 1 8 11 4 or larger 10 Fig 8 Gas Piping Guide With Accessory Thru the Curb Service Connections...

Page 11: ...A Adjustable Heat Anticipator TH Thermostat Heating CC Cooling Compensator Field Wiring TC Thermostat Cooling Factory Wiring NOTES 1 Connect Y2 when unit is equipped with an economizer 2 Connect W2 wh...

Page 12: ...6 20 15 94 575 3 60 Std 518 632 7 9 58 0 0 6 2 6 30 14 4 15 12 76 IMPORTANT Optional alternate evaporator fan motor and drive are not available for 48TJ007 units Contact your local Carrier representat...

Page 13: ...he 4 screws removed in Step 3 See Fig 15 6 Remove and save 6 screws 3 on each side from sides of the manual outdoor air damper 7 Align screw holes on hood with screw holes on side of manual outdoor ai...

Page 14: ...g hood assembly See Fig 20 5 Insert economizer plug into economizer harness Re move tape from barometric relief damper See Fig 21 6 If ventilation air is not required proceed to Step 8 If ventilation...

Page 15: ...fm Determine Setting 5 in Fig 22 Varislide Economizer Minimum Position Setting MINIMUM POSITIO N OPEN 3 1 T P P1 T1 4 2 5 S S O D C TR B REV B 1 9 8 8 1 8 A H U M I D I T Y 90 70 60 30 10 D C B A 60 6...

Page 16: ...ired 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 poten...

Page 17: ...y en gaged See Fig 28 8 Fasten hood top and side plate assembly Fig 29 to outdoor air opening panel with screws provided 9 Slide outdoor air inlet screen into screen track on hood side plate While hol...

Page 18: ...n speed make sure the new fan speed will provide an air temperature rise range as shown in Table 1 To change fan speed 1 Shut off unit power supply 2 Loosen belt by loosening fan motor mounting nuts S...

Page 19: ...10 1070 Approximate fan rpm shown Indicates alternate motor and drive package Indicates standard motor and drive package Table 4 Motor Data UNIT 48TJ EVAPORATOR FAN MOTOR MAXIMUM CONTINUOUS BHP MAXIMU...

Page 20: ...487 1100 687 219 746 259 806 298 867 348 929 398 964 398 1013 487 1068 547 1200 733 259 785 318 843 348 903 408 960 467 994 497 1045 557 1090 637 1300 754 288 826 378 891 428 942 477 991 527 1047 597...

Page 21: ...1072 950 1107 998 1700 791 515 873 599 907 678 941 757 1024 889 1064 976 1103 1063 1137 1128 1800 831 609 881 693 929 772 976 851 1057 991 1095 1078 1132 1165 1167 1239 1900 872 704 919 788 965 877 1...

Page 22: ...70 869 1144 1032 1226 1216 1301 1492 1380 1757 1600 770 429 826 501 930 654 1015 797 1098 961 1173 1134 1242 1308 1318 1523 1392 1800 1700 811 511 864 582 964 736 1051 899 1124 1053 1203 1237 1270 142...

Page 23: ...or and drive are required 3 Maximum usable watts input is 2120 Extensive motor and elec trical testing on these units ensures that the full range of the motor can be utilized with confidence Using you...

Page 24: ...your fan motors up to the wattage ratings shown will not result in nuisance tripping or pre mature motor failure Unit warranty will not be affected For ad ditional information on motor performance re...

Page 25: ...d elec trical testing on these units ensures that the full range of the motor can be utilized with confidence Using your fan motors up to the wattage ratings shown will not result in nuisance tripping...

Page 26: ...ll other rpms require field supplied drive 7 To convert watts to bhp watts input x motor efficiency bhp 746 Motor efficiency 74 Table 18 Fan Performance 48TJD TJE TJF007 Horizontal Discharge Units Sta...

Page 27: ...Natural Gas Orifice Size Liquid Propane Orifice Size Natural Gas Orifice Size Liquid Propane Orifice Size 0 2 000 33 45 30 38 2 000 34 46 30 39 3 000 35 47 31 40 4 000 36 47 32 41 5 000 36 47 33 42 6...

Page 28: ...thermostat calls for cooling the economizer damper moves to the minimum position If the supply air tempera ture is above 57 F the damper continue to open until it reaches the fully open position or u...

Page 29: ...top cover as shown in Fig 36 and 37 It is not necessary to remove the top cover 2 Remove 3 screws on right side of compressor access panel Remove one screw securing condenser coil top cover to compres...

Page 30: ...harging charts are different from type normally used Charts are based on charg ing the units to the correct superheat for the various oper ating conditions Accurate pressure gage and temperature sensi...

Page 31: ...Fig 40 Cooling Charging Chart 48TJ004 Fig 41 Cooling Charging Chart 48TJ005 Fig 42 Cooling Charging Chart 48TJ006 Fig 43 Cooling Charging Chart 48TJ007 31...

Page 32: ...aporator 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 F...

Page 33: ...Fig 45 Burner Tray Details Fig 46 Spark Adjustment LOW HEAT 48TJE004 48TJD005 007 74 000 BTUH INPUT MEDIUM AND HIGH HEAT 48TJE005 007 48TJF004 115 000 BTUH INPUT 48TJF005 007 150 000 BTUH INPUT 33...

Page 34: ...trode spacing gaps etc Ensure that flame sense and ignition wires are prop erly terminated Verify that unit is obtaining proper amount of gas Induced draft motor fault LED 6 flashes IGC does not sense...

Page 35: ...pressure at manifold Clock gas meter for input If too low increase manifold pressure or replace with correct orifices Unit undersized for application Replace with proper unit or add additional unit Re...

Page 36: ...ace Restriction in refrigerant system Locate restriction and remove Compressor operates con tinuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Therm...

Page 37: ...l 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 function ing and wired properly and no 24 vac exists check wiring s...

Page 38: ...ed If these actions do not occur replace module 4 Disconnect 1 2 Kohm checkout resistor before resuming operation Damper does not close No power to economizer 1 Disconnect power at TR and TR1 Disconne...

Page 39: ...inal 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...

Page 40: ...Fig 47 Typical Wiring Diagram and Component Arrangement 40...

Page 41: ......

Page 42: ...turer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Tab 1a 6a PC 111 Catalog No 534 852 Printed in U S A F...

Page 43: ......

Page 44: ...M CHECK FAN WHEEL AND PROPELLER 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 INDOOR FAN AMPS L1 L2 L3 TEMPER...

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