Carrier 50PD05 Operating And Service Instructions

Also see for 48PD05: User manual User's information manual Installation instructions

APPENDIX D - ADDITIONAL START-UP DATAUNIT50PD0506Table 60 -- Air Quantity Limits (50PD Units)COOLING (cfm) HEATING (cfm)OPTIONAL ELECTRIC HEAT1200 2000 1200 20001500 2500 1500 2500Table 61 -- Air Quantity Limits (48PD Units)UNIT COOLING (cfm) HEATING (cfm)48PD Min Max Min Max05 (Low Heat) 1200 2000 600 168005 (Med Heat) 1200 2000 940 281005 (High Heat) 1200 2000 1130 282008 (Low Heat) 1500 2500 940 281008 (Med Heat) 1500 2500 1130 282008 (High Heat) 1500 2500 1510 2520Table 62 -- Evaporator Fan Motor Specifications - 48/50PD48/50PD DRIVE VOLTAGE/PHASE05 & 06 Low & High 208/230-3ph460-3phNOTES:1. Extensive motor and electrical testing ensures that the motors can be utilizedwith confidence up to the maximum applied bhp, watts, and amps. Using the fanmotor up to the maximum ratings shown will not result in nuisance tripping orpremature motor failure. Unit warranty will not be affected.2. Convert bhp to watts using the following formula:bhp (746)watts = motor efficiencyEFFICIENCY MAX BHP MAX AMPS0.80 2.0 6.40.80 2.0 3.23. The EPAC_ (Energy Policy Act of 1992) regulates energy requirements forspecific types of indoor-fan motors. Motors regulated by EPAC_ include anygeneral purpose, T-frame (three-digit, 143 and larger), single-speed, footmounted, polyphase, squirrel cage induction motors of NEMA (National ElectricalManufacturers Association) design A and B, manufactured for use in the UnitedStates. Ranging from 1 to 200 Hp, these continuous-duty motors operate on 230and 460 volt, 60 Hz power. If a motor does not fit into these specifications, themotor does not have to be replaced by an EPAC_-compliant energy-efficient motor.Variable-speed motors are exempt from EPACW compliance requirements.Therefore, the indoor-fan motors for Carrier 48/50PG03-14 units are exempt fromthese requirements.Table 63 -- Fan Rpm at Motor Pulley Settings* - 48/50PDUNIT MOTOR PULLEY TURNS OPEN48/50PD DRIVE 0 1/2 1 11/2 2 21/2 3 31/2 4 41/2 5Low 910 878 847 815 784 753 721 690 659 627 59605 High 1173 1139 1104 1070 1035 1001 966 932 897 863 82808 Low 978 949 920 891 863 834 805 776 748 719 690Hiclh 1261 1227 1194 1161 1128 1095 1062 1028 995 962 929*Approximate fan rpm shown, based on 1725 rpm motor.NOTE: Factory speed setting is at 5 turns open.Table 64 -- Accessory/FlOP Pressure Drop (in. wg) - 48/50PDAIRFLOW ELECTRIC ECONOMIZER ECONOMIZER(CFM) HEAT (Vertical) (Horizontal)800 0.01 0.01 0.03800 0.01 0.01 0.051000 0.02 0.02 0.071200 0.02 0.03 O. 101400 0.03 0.04 O. 141600 0.04 0.08 O. 171800 0.05 0.07 0.222000 0.07 0.09 0.282200 0.08 0.11 0.312400 0.10 0.13 0.372600 0.11 0.15 0.432800 0.13 0.18 0.493000 0.15 0.21 0.56100