Carrier instruction manual AÐWet Coil Air Delivery, Unit 50JS 018-060Deduct 10% for

Table 4AÐWet Coil Air Delivery

Unit 50JS 018-060 (Deduct 10% for 208v)*

UNIT	MOTOR SPEED					EXTERNAL STATIC PRESSURE (IN. WG)
			0.0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0
	Low	Watts	-	-	-	214	191	170	-	-	-	-	-
		Cfm	-	-	-	821	696	575	-	-	-	-	-
018	Med	Watts	-	-	-	-	-	-	-	-	-	-	-
		Cfm	-	-	-	-	-	-	-	-	-	-	-
	High	Watts	-	-	-	-	283	274	267	-	-	-	-
		Cfm	-	-	-	-	848	707	555	-	-	-	-
	Low	Watts	-	-	237	214	191	-	-	-	-	-	-
		Cfm	-	-	971	821	696	-	-	-	-	-	-
024	Med	Watts	-	-	-	-	368	366	365	360	-	-	-
		Cfm	-	-	-	-	957	872	785	688	-	-	-
	High	Watts	-	-	-	-	-	-	-	425	414	-	-
		Cfm	-	-	-	-	-	-	-	891	735	-	-
	Low	Watts	295	292	289	-	-	-	-	-	-	-	-
		Cfm	928	882	802	-	-	-	-	-	-	-	-
30	Med	Watts	388	383	377	372	366	361	-	-	-	-	-
		Cfm	1203	1120	1062	1004	930	838	-	-	-	-	-
	High	Watts	-	-	-	-	469	458	449	442	-	-	-
		Cfm	-	-	-	-	1141	1027	924	828	-	-	-
	Low	Watts	592	581	567	552	538	525	512	499	-	-	-
		Cfm	1499	1421	1351	1281	1207	1125	1034	936	-	-	-
36	Med	Watts	-	-	-	660	636	617	603	592	581	566	-
		Cfm	-	-	-	1475	1371	1274	1186	1105	1024	928	-
	High	Watts	-	-	-	-	-	776	761	744	725	706	689
		Cfm	-	-	-	-	-	1452	1356	1254	1145	1030	910
	Low	Watts	606	596	586	575	563	550	537	-	-	-	-
		Cfm	1464	1399	1341	1282	1218	1146	1066	-	-	-	-
42	Med	Watts	680	665	649	635	622	611	600	590	-	-	-
		Cfm	1608	1535	1461	1387	1316	1247	1180	1111	-	-	-
	High	Watts	768	755	742	730	718	707	696	684	671	-	-
		Cfm	1656	1576	1508	1447	1390	1331	1268	1198	1119	-	-
	Low	Watts	741	724	709	690	664	631	594	562	543	552	-
		Cfm	1994	1937	1869	1797	1722	1645	1566	1480	1384	1269	-
48	Med	Watts	-	-	-	773	744	715	687	662	640	625	-
		Cfm	-	-	-	1957	1867	1787	1719	1653	1575	1463	-
	High	Watts	-	-	-	-	-	799	782	773	756	704	-
		Cfm	-	-	-	-	-	1914	1842	1774	1686	1538	-
	Low	Watts	742	723	698	666	629	591	559	540	-	-	-
		Cfm	2197	2141	2103	2057	1988	1894	1783	1674	-	-	-
60	Med	Watts	838	822	803	780	752	721	689	661	639	632	-
		Cfm	2485	2406	2269	2127	2012	1937	1894	1855	1770	1571	-
	High	Watts	-	934	913	891	866	837	806	776	750	735	-
		Cfm	-	2483	2391	2283	2170	2061	1960	1868	1780	1687	-

*Air delivery values are based on operating voltage of 230 v or 460 v, wet coil, without filter or electric heater. Deduct filter and electric heater pressure drops to obtain static pressure available for ducting.

NOTES:

1.Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator coil frosting may occur at airflows below this point.

2.Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended. 3. Deduct 10% for 208v.

2.Place SYSTEM switch in COOL position and FAN switch in AUTO position. Set control below room temperature. Observe that cooling cycle shuts down when control setting is satisfied.

3.Place system switch in HEAT position. Set control above room temperature. Observe that compressor, outdoor fan, and indoor blower motors start. Observe that heating cycle shuts down when control setting is satisfied.

4.When using an automatic changeover room thermostat, place both SYSTEM and FAN switches in AUTO positions. Ob- serve that unit operates in Cooling mode when temperature control is set to ``call for Cooling'' (below room temperature), and unit operates in Heating mode when temperature control is set to "call for Heating" (above room temperature).

IMPORTANT: Three-phase, scroll compressors are direction ori- ented. Unit must be checked to ensure proper compressor 3-phase power lead orientation. If not corrected within 5 min., the internal protector will shut off the compressor. The 3-phase power leads to the unit must be reversed to correct rotation. When turning backwards, scroll compressors emit elevated noise levels, and the difference between compressor suction and discharge pressures may be dramatically lower than normal.

CHECKING AND ADJUSTING REFRIGERANT CHARGE

ÐThe refrigerant system is fully charged with R-22 refrigerant and is tested and factory sealed.

NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R-22 charge.

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