Carrier 48SX024-060, 48SS018-060 user manual Unit 48SX, FAN only Cfm Cooling Cfm

Table 14 Ð Dry-Coil Air Delivery* Ð Down¯ow Discharge at 230 and 460 V Ð Unit 48SX

(Deduct 10% from Cfm and Watts for 208 V Operation)

UNIT	MOTOR	AIR				EXTERNAL STATIC PRESSURE (in. wg)
48SX	SPEED	DELIVERY	0.0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0
	Low	Watts	280	275	265	255	250	245	240	²	²	²	²
		Cfm	820	810	755	700	660	600	560	²	²	²	²
024,	Med	Watts	365	360	350	345	340	330	320	310	300	²	²
030		Cfm	1025	1010	975	940	900	850	800	720	630	²	²
	High	Watts	²	²	490	480	470	460	445	430	410	390	380
		Cfm	²	²	1300	1255	1200	1150	1080	1005	915	790	620
	Low	Watts	520	495	474	458	445	425	²	²	²	²	²
		Cfm	1375	1335	1290	1240	1200	1140	²	²	²	²	²
036	Med	Watts	575	560	535	510	480	460	440	425	²	²	²
		Cfm	1520	1490	1450	1400	1380	1300	1200	1080	²	²	²
	High	Watts	²	²	²	²	650	614	575	540	510	480	²
		Cfm	²	²	²	²	1560	1500	1380	1280	1170	1060	²
	Low	Watts	490	480	470	460	450	430	410	390	²	²	²
		Cfm	1400	1380	1340	1300	1250	1200	1140	1070	²	²	²
042	Med	Watts	590	580	560	545	525	505	480	450	420	²	²
		Cfm	1600	1560	1540	1470	1430	1360	1300	1220	1120	²	²
	High	Watts	²	²	²	²	²	700	670	640	600	560	500
		Cfm	²	²	²	²	²	1780	1670	1600	1480	1340	1100
	Low	Watts	1050	1000	970	930	870	810	750	680	600	²	²
048**		Cfm	1850	1830	1800	1785	1750	1700	1640	1500	1330	²	²
	High	Watts	²	²	²	1050	1000	930	870	810	740	665	²
		Cfm	²	²	²	2000	1940	1850	1750	1635	1500	1300	²

*Air delivery values are without air ®lter and are for dry coil. See Table 17 for wet coil pressure drop. Deduct ®eld-supplied air ®lter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting.

²Unit air delivery is outside of operating range.

**For 460 v units only.

NOTE: Do not operate the unit at a cooling air¯ow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator-coil icing may occur at air¯ows below this point. Water blow-off may occur at air¯ows above 450 cfm per 12,000 Btuh of rated cooling capacity.

Table 15 Ð Dry Coil Air Delivery* Ð Heating Ð Horizontal and Down¯ow Discharge for Integrated Control Motor Units at 230-V (Deduct 10% from Cfm for 208-V Operation)

HEATING	EASY SELECT BOARD TERMINALS (Cfm)
INPUT
(Btuh)	1	2	3	4
80,000	1300	1400	1600	1750
100,000	Ð	1400	1600	1750
95,000	Ð	Ð	1600	1750
136,000	Ð	Ð	Ð	1750

*Air delivery values are for dry coil at 230 v. Air¯ow is independent of external static pressure within 65% of table values up to 0.8 in wg.

NOTES:

1.Dashed areas do not fall within approved range.

2.The above values occur with the AC/HP CFM ADJUST select jumper set on MED.

3.Air¯ow can be adjusted110% or −10% by selecting HI or LO for all modes except FAN ONLY.

Table 16 Ð Dry-Coil Air Delivery* Ð Fan Only and Cooling Ð Horizontal and Down¯ow Discharge for Integrated Control Motor Units at 230-V (Deduct 10% from Cfm for 208-V Operation)

UNIT 48SX	FAN ONLY (Cfm)	COOLING (Cfm)
048	1400	1600
060	1750	2000

*Air delivery values are for dry coil at 230 v. Air¯ow is independent of external static pressure within 65% of table values up to 0.8 in wg.

NOTE: Do not operate the unit at a cooling air¯ow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator- coil icing may occur at air¯ows below this point. Water blow-off may occur at air¯ows above 450 cfm per 12,000 Btuh of rated cooling capacity.

43