Carrier 48TJE Series - Page 19

To align fan and motor pulleys:
1. Loosen fan pulley setscrews.
2. Slide fan pulley along fan shaft.
3. Make angular alignment by loosening motor from
mounting.
To adjust belt tension:
1. Loosen fan motor mounting nuts.
2. Slide motor mounting plate away from fan scroll for proper
belt tension (
1
⁄ 2 -in. deflection with one finger).
3. Tighten motor mounting nuts.
4. Adjust bolt and tighten nut to secure motor in fixed
position.
Table 3 — Fan Rpm at Motor Pulley Settings*
UNIT
48TJ
MOTOR PULLEY TURNS OPEN
0
1
⁄ 2 11
1
⁄ 2 22
1
⁄ 2 33
1
⁄ 2 44
1
⁄ 2 5
004† 1090 1055 1025 990 960 925 890 860 825 795 760
005† 1185 1150 1115 1080 1045 1015 980 945 910 875 840
006† 1300 1260 1220 1180 1140 1100 1060 1020 980 940 900
007** 1460 1420 1380 1345 1305 1265 1225 1185 1150 1110 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*
MAXIMUM
OPERATING
WATTS*
UNIT
VOLTAGE
MAXIMUM AMP
DRAW
004
Std .34 440
208/230 2.9
460 1.4
575 1.4
Alt 1.00 1000
208/230 5.1
460 2.3
575 2.3
005
Std .75 850
208/230 3.7
460 1.9
575 1.9
Alt 1.00 1000
208/230 5.1
460 2.3
575 2.3
006
Std 1.20 1340
208/230 6.2
570 3.4
575 3.4
Alt 1.80 1921
208/230† 9.2
208/230** 6.1
460 4.7
575 4.7
007 Std 2.40 2120
208/230 6.1
460 2.7
575 2.7
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.
†Single-phase motor.
**3-phase motor.
19