Lennox International Inc 2SCU13 warranty Normal Operating Pressures, Fixed Orifice RFC

Normal Operating Pressures

								Model
Outdoor Coil
	-18		-24			-30		-36		-42		-48		-60
Entering Air
Temperature
	L	S	L		S	L	S	L	S	L	S	L	S	L	S
				Expansion Valve (TXV)
65°F	141	80	147		79	141	76	145	74	143	78	145	80	151	76
75°F	166	81	173		80	167	77	170	76	167	80	170	81	177	78
85°F	195	82	218		82	195	78	201	77	198	81	198	82	207	79
95°F	222	83	234		82	227	80	234	78	231	82	230	84	240	80
105°F	258	85	267		84	260	81	268	79	268	84	265	85	277	81
115°F	294	86	307		85	299	83	309	81	308	85	303	86	318	83
					Fixed Orifice (RFC)
65°F	144	73	147		68	140	66	150	67	147	70	145	70	150	67
75°F	167	78	173		74	166	71	176	72	171	75	170	75	177	72
85°F	196	82	203		79	196	76	205	76	198	78	198	80	207	77
95°F	225	84	238		83	227	80	237	79	228	81	230	84	239	80
105°F	256	86	272		86	262	83	273	81	262	84	264	86	274	83
115°F	293	88	317		88	302	86	314	84	300	85	301	88	315	85

L – Liquid S – Suction

Values provided above are typical pressures. Indoor unit matchup, indoor air quality, and indoor load will cause pressures to vary.

Table 9

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