Carrier 48TJE008-014 User Manual download pdf (Page 5)

Physical data — 48TJ008-014 (SI)

UNIT SIZE D/E/F008 D/E/F012 D/E014

NOMINAL CAPACITY (kW) 21.5 29.2 35.9

OPERATING WEIGHT (kg)

Unit 395 469 476

Economizer (Durablade) 20 20 20

Roof Curb* 65 65 65

COMPRESSOR Hermetic

Quantity 222

Oil (ml) 1479 ea 1479 ea 1922 ea

REFRIGERANT TYPE R-22

Operating Charge (kg)

Circuit 1 2.10 2.49 4.22

Circuit 2 2.13 2.55 3.90

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Rows...Fins/m 1...669 2...669 2...669

Total Face Area (sq m) 1.90 1.62 2.30

CONDENSER FAN Propeller Type

Nominal L/s 2880 3050 3050

Quantity...Diameter (mm) 2...559 2...559 2...559

Motor BkW...r/s .19...15.5 .19...15.5 .19...15.5

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

Rows...Fins/m 3...590 3...590 4...590

Total Face Area (sq m) 0.74 0.93 1.03

EVAPORATOR FAN Centrifugal Type

Quantity...Size (mm x mm) 1...381 x 381 1...381 x 381 1...381 x 381

Type Drive Belt Belt Belt

Nominal L/s 1230 1700 1980

Motor kW 1.12 1.50 2.24

Maximum Continuous BkW 1.79 1.79 2.76

Motor Frame Size 56 56 56

Fan r/s Range 8.2-11.7 9.5-13.0 12.0-15.0

Motor Bearing Type Ball Ball Ball

Maximum Allowable r/s 26.7 26.7 26.7

Motor Pulley Pitch Diameter Min/Max (mm) 61/86 86/112 102/127

Nominal Motor Shaft Diameter (mm) 16 16 22

Fan Pulley Pitch Diameter (mm) 140 178 203

Nominal Fan Shaft Diameter (mm) 25 25 25

Belt, Quantity...Type...Length (mm) 1...A...1219 1...A...1219 1...A...1448

Pulley Center Line Distance (mm) 406 495 495

Speed Change per Full Turn of

Movable Pulley Flange (r/s)

.70 .70 .60

Movable Pulley Maximum Full Turns

From Closed Position

555

Factory Setting 555

Factory Speed Setting (r/s) 8.2 9.5 12.0

Fan Shaft Diameter at Pulley (mm) 25 25 25

FURNACE SECTION

Rollout Switch Cutout (Temp C) 90.6 90.6 90.6

Burner Oriﬁce Diameter (mm)

Natural Gas — Std 3.05 3.05 3.05

Liquid Propane — Alt 2.44 2.44 2.44

Thermostat Heat Anticipator Setting (amps)

400 v Stage 1 .14 .14 .14

Stage 2 .20 .20 .20

Gas Input (kW) Stage 1 21.1/31.9/39.8 31.9/39.8/43.9 39.8/43.9

Stage 2 31.4/50.4/59.8 50.4/59.8/65.6 59.8/65.6

Efficiency (Steady State) (%) 82/80/80 80/80/80 80/80

Temperature Rise Range (C) -6-10/2-18/7-24 2-18/7-24/4-21 7-24/4-21

Manifold Pressure (kPa)

Natural Gas — Std 8.3 8.3 8.3

Liquid Propane — Alt 8.3 8.3 8.3

Field Gas Connection Size (NPT) .50/.75/.75 .75/.75/.75 .75/.75

HIGH-PRESSURE SWITCH (kPa)†

Standard Compressor Internal Relief

(Differential)

3103 ± 345 3448 ± 345

Cutout 2951

Reset (Auto.) 2206

LOW-PRESSURE SWITCH (kPa)†

Cutout 48±21

Reset (Auto.) 152±48

FREEZE PROTECTION THERMOSTAT†

Opens (C) −1

Closes (C) 7

OUTDOOR-AIR INLET SCREENS Cleanable

Quantity...Size (mm)

1...508 x 635 x 25

1...406 x 635 x 25

RETURN-AIR FILTERS Throwaway

Quantity...Size (mm) 4...406 x 508 x 51 4...508 x 508 x 51 4...508 x 508 x 51

LEGEND

Bhp — Brake Horsepower

BkW — Fan Input Watts x Motor Efficiency

*Weight of 356 mm (14-in.) roof curb.

†Requires the accessory/optional controls upgrade kit.

NOTE: The 48TJ units have a loss-of-charge/low-pressure switch (option or

accessory) located in the liquid line.

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Carrier 48TJE008-014 User Manual Page 5

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