Carrier PhysicalData - Unit 50CR, Typical Installation, User Interface Return Air, Top Cover

50CR

Table 1—Physical Data - Unit 50CR

UNIT SIZE	024	030	036	042			048	060
NOMINAL CAPACITY (ton)	2	2--1/2	3	3--1/2			4	5
OPERATING WEIGHT (lb.)	350	350	373	440			463	499
Compressor						Scroll
Refrigerant (R-410A) Quantity (lb.)	7.5	8	9.5	10.8			11.5	14.0
REFRIGERANT METERING DEVICE						TXV
ORIFICE OD (in.)	0.035 (2)	0.035 (2)	0.038 (2)	0.038 (2)		0.038 (Left OD Coil)		0.042 (Left OD Coil)
						0.046 (Right OD Coil)		0.052 (Right OD Coil)
OUTDOOR COIL
Rows…Fins/in.	2…21	2…21	2…21	2…21			2…21	2…21
Face Area (sq. ft.)	12.3	12.3	13.6	15.4			17.2	19.4
OUTDOOR FAN
Nominal Cfm	2700	2700	2800	2800			3300	3300
Diameter	22	22	22	22			22	22
Motor HP (RPM)	1/8 (825)	1/8 (825)	1/8 (825)	1/8 (825)			1/4 (1100)	1/4 (1100)
INDOOR COIL
Rows…Fins/in.	3…15	3…15	4…15	3…15			4…15	4…17
Face Area (sq. ft.)	3.7	3.7	3.7	4.7			4.7	5.7
INDOOR BLOWER
Nominal Airflow (Cfm)
Comfort	Variable based on Comfort Roll back (see User Interface instructions for more information).
Efficiency	700	875	1050	1225			1400	1750
Max	800	1000	1200	1400			1600	2000
Size (in.)	10x10	10x10	11x10	11x10			11x10	11x10
Motor HP (RPM)	1/2	1/2	3/4	3/4			3/4	1
HIGH-PRESSURE SWITCH (psig)				650 ± 15
Cutout
				420 ± 25
Reset (Auto)
LOSS-OF-CHARGE/LOW-PRESSURE SWITCH
(Liquid Line) (psig)					20 ± 5
Cutout				45 ± 10
Reset (Auto)
Return-Air Filters (in.)*	20x24x1	20x24x1	24x30x1	24x36x1			24x36x1	24x36x1
Throwaway
*Required filter sizes shown are based on the larger of the ARI	(Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/minute
for throwaway type or 450 ft/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.

USER

INTERFACE

RETURN

AIR

TOP COVER

FROM

POWER

SOURCE

DISCONNECT PER NEC*

FROM

GAS LINE

*NEC - NATIONAL ELECTRICAL CODE

A06091

Fig. 10 - Typical Installation

10