Carrier 48/50PD05 manual Appendix D - Additional Start-Updata

APPENDIX D - ADDITIONAL START-UP DATA

Table 60 — Air Quantity Limits (50PD Units)

UNIT	COOLING (cfm)		HEATING (cfm)
50PD			OPTIONAL ELECTRIC HEAT
05	1200	2000	1200	2000
06	1500	2500	1500	2500

Table 61 — Air Quantity Limits (48PD Units)

UNIT	COOLING (cfm)		HEATING (cfm)
48PD	Min	Max	Min	Max
05 (Low Heat)	1200	2000	600	1680
05 (Med Heat)	1200	2000	940	2810
05 (High Heat)	1200	2000	1130	2820
06 (Low Heat)	1500	2500	940	2810
06 (Med Heat)	1500	2500	1130	2820
06 (High Heat)	1500	2500	1510	2520

Table 62 — Evaporator Fan Motor Specifications - 48/50PD

48/50PD	DRIVE	VOLTAGE/PHASE	EFFICIENCY	MAX BHP	MAX AMPS
05 & 06	Low & High	208/230---3ph	0.80	2.0	6.4
		460---3ph	0.80	2.0	3.2

48/50PD

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:

watts =	bhp (746)
	motor efficiency

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), single-speed, foot 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.

Table 63 — Fan Rpm at Motor Pulley Settings* - 48/50PD

UNIT	DRIVE					MOTOR PULLEY TURNS OPEN
48/50PD		0	1/2	1	11/2		2	21/2	3	31/2	4	41/2	5
05	Low	910	878	847	815		784	753	721	690	659	627	596
	High	1173	1139	1104	1070		1035	1001	966	932	897	863	828
06	Low	978	949	920	891		863	834	805	776	748	719	690
	High	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/FIOP Pressure Drop (in. wg) - 48/50PD

AIRFLOW	ELECTRIC	ECONOMIZER	ECONOMIZER
(CFM)	HEAT	(Vertical)	(Horizontal)
600	0.01	0.01	0.03
800	0.01	0.01	0.05
1000	0.02	0.02	0.07
1200	0.02	0.03	0.10
1400	0.03	0.04	0.14
1600	0.04	0.06	0.17
1800	0.05	0.07	0.22
2000	0.07	0.09	0.26
2200	0.08	0.11	0.31
2400	0.10	0.13	0.37
2600	0.11	0.15	0.43
2800	0.13	0.18	0.49
3000	0.15	0.21	0.56

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