Appendix D - - Additional Startup Data - Carrier 48/50PD05 User Manual

Table 60 — Air Quantity Limits (50PD Units)
UNIT
COOLING (cfm)
50PD
05
1200 2000
06
1500 2500
48/50PD DRIVE
05 & 06 Low & High
NOTES:
1. Extensive motor and electrical testing ensures that the motors can be utilized
with confidence up to the maximum applied bhp, watts, and amps. Using the fan
motor up to the maximum ratings shown will not result in nuisance tripping or
premature motor failure. Unit warranty will not be affected.
2. Convert bhp to watts using the following formula:
bhp (746)
watts =
motor efficiency
UNIT
DRIVE
48/50PD
Low
05
High
Low
06
High
*Approximate fan rpm shown, based on 1725 rpm motor.
NOTE: Factory speed setting is at 5 turns open.
AIRFLOW
(CFM)
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
APPENDIX D - - ADDITIONAL START- - UP DATA
HEATING (cfm)
OPTIONAL ELECTRIC HEAT
1200 2000
1500 2500
Table 62 — Evaporator Fan Motor Specifications - 48/50PD
VOLTAGE/PHASE
208/230--- 3ph
460--- 3ph
Table 63 — Fan Rpm at Motor Pulley Settings* - 48/50PD
1
0 / 1 1
2
910 878 847 815
1173 1139 1104 1070
978 949 920 891
1261 1227 1194 1161
Table 64 — Accessory/FIOP Pressure Drop (in. wg) - 48/50PD
ELECTRIC
HEAT
0.01
0.01
0.02
0.02
0.03
0.04
0.05
0.07
0.08
0.10
0.11
0.13
0.15
Table 61 — Air Quantity Limits (48PD Units)
UNIT
48PD
05 (Low Heat)
05 (Med Heat)
05 (High Heat)
06 (Low Heat)
06 (Med Heat)
06 (High Heat)
EFFICIENCY
0.80
0.80
3. The EPACT (Energy Policy Act of 1992) regulates energy requirements for
specific types of indoor-fan motors. Motors regulated by EPACT include any
general purpose, T-frame (three-digit, 143 and larger),
mounted, polyphase, squirrel cage induction motors of NEMA (National Electrical
Manufacturers Association) design A and B, manufactured for use in the United
States. Ranging from 1 to 200 Hp, these continuous-duty motors operate on 230
and 460 volt, 60 Hz power. If a motor does not fit into these specifications, the
motor does not have to be replaced by an EPACT-compliant energy-efficient motor.
Variable-speed motors are exempt from EPACT compliance requirements.
Therefore, the indoor-fan motors for Carrier 48/50PG03- -14 units are exempt from
these requirements.
MOTOR PULLEY TURNS OPEN
1 1
/ 2 2 / 3
2 2
784 753 721
1035 1001 966
863 834 805
1128 1095 1062
ECONOMIZER
(Vertical)
0.01
0.01
0.02
0.03
0.04
0.06
0.07
0.09
0.11
0.13
0.15
0.18
0.21
100
COOLING (cfm) HEATING (cfm)
Min Max Min
1200 2000 600
1200 2000 940
1200 2000 1130
1500 2500 940
1500 2500 1130
1500 2500 1510
MAX BHP MAX AMPS
2.0 6.4
2.0 3.2
single-speed, foot
1 1
3 / 4 4 /
2 2
690 659 627
932 897 863
776 748 719
1028 995 962
ECONOMIZER
(Horizontal)
0.03
0.05
0.07
0.10
0.14
0.17
0.22
0.26
0.31
0.37
0.43
0.49
0.56
Max
1680
2810
2820
2810
2820
2520
5
596
828
690
929