Lennox International Inc 06/11 50672801 Normal Operating Pressures − Liquid +10 and Vapor +5 Psig

	APPROVED MATCHED SYSTEM COMPONENTS, TARGETED SUBCOOLING (SC) VALUES AND
							ADD CHARGE VALUES
Listed below are the approved matched system								Subcooling values listed in the following tables are based
components (air handlers and indoor coils), targeted								on outdoor ambient air temperature of:
subcooling and add charge values for the XP13. This								S 60°F (15.5°C) and above for cooling mode
information is also listed on the unit charging sticker
located on the outdoor unit access panel.								S 59°F (15.0°C) and below for heating mode.
		Table 3. Unit Indoor Matches, Targeted Subcooling, and Add Charge Values
	Indoor Coil or Air	Subcooling		*Additional			Indoor Coil or Air	Subcooling		*Additional			Indoor Coil or Air	Subcooling		*Additional
Size				Charge		Size				Charge		Size				Charge
	Handler						Handler						Handler
		Heat	Cool	Lbs	Oz.			Heat	Cool	Lbs	Oz.			Heat	Cool	Lbs	Oz.
	CBX26UH−018	11	8	0	0	−030 (continued)						−042 (continued)
	CBX27UH−024	11	14	1	1		CBX40UHV−036	9	22	1	0		CH33−48C	7	14	1	2
	CBX32M−018/024	10	12	0	5		CH33−42B	10	7	0	0		CR33−50/60C	8	21	2	4
	CBX32MV−024/030	11	14	1	1		CH33−31B	10	7	0	0		CX34−43B	8	14	1	13
−018	CBX32MV−018/024	10	12	0	5		CR33−30/36AB/C	9	7	0	9		CX34−50/60C	8	14	1	13
	CBX40UHV−024	10	18	1	8		CX34−31A/B	9	19	0	14		CBX26UH−048	7	7	1	2
	CH33−25A	13	7	0	4		CBX26UH−036	19	15	0	0		CBX27UH−048	10	8	1	5
	CH33−36A	13	7	0	4		CBX27UH−036	8	13	1	2		CBX27UH−060	8	10	1	9
	CR33−30/36A/B/C	11	4	0	4		CBX32M−036	8	13	1	2		CBX32M−048	10	8	1	5
	CX34−25A/B	11	12	0	3		CBX32MV−036	8	13	1	2		CBX32M−060	9	6	0	9
	CBX26UH−024	12	12	1	9		CBX40UHV−030	8	13	1	2		CBX32MV−048	10	8	1	5
	CBX27UH−024	12	18	1	15	−036	CBX40UHV−036	8	13	1	2		CBX32MV−060	9	6	0	9
	CBX27UH−030	11	22	1	6		CH33−36C	8	12	0	5	−048	CBX40UHV−042	10	8	1	5
	CBX32M−030	12	18	1	15		CH33−42B	8	7	0	0		CBX40UHV−048	10	8	1	5
	CBX32MV−018/024	8	15	2	2		CH33−31B	8	7	0	0		CBX40UHV−060	9	8	1	3
−024	CBX32MV−024/030	12	18	1	15		CR33−48B/C	9	6	0	8		CH33−50/60C	9	7	1	6
	CBX32MV−036	11	22	1	6		CX34−38A/B	8	16	1	2		CH33−60D	7	6	0	11
	CBX40UHV−024	11	22	1	6		CX34−44/48B/C	8	19	1	6		CR33−50/60C	7	6	0	12
	CH33−25B	11	13	0	15		CBX26UH−042	11	7	1	1		CR33−60D	7	6	0	12
	CH33−36B	11	13	0	15		CBX27UH−042	8	23	2	11		CX34−49C	6	7	0	0
	CR33−30/36A/B/C	11	6	0	0		CBX27UH−048	8	23	2	11		CX34−60D	9	5	0	0
	CX34−25A/B	12	16	1	9		CBX32M−048	8	23	2	11		CBX26UH−060	6	8	1	11
	CBX26UH−030	9	16	0	14	−042	CBX32MV−036	7	8	0	0		CBX27UH−060	6	8	2	1
	CBX27UH−030	9	22	1	0		CBX32MV−048	8	23	2	11		CBX32MV−060	6	7	0	15
	CBX32M−036	9	22	1	0		CBX40UHV−042	8	23	2	11		CBX32MV−068	8	11	2	2
−030	CBX32MV−024/030	9	18	3	3		CBX40UHV−048	8	23	2	11	−060	CBX40UHV−060	6	7	0	15
	CBX32MV−036	9	22	1	0		CBX40UHV−036	7	8	0	0		CH33−62D	7	11	2	1
	CBX40UHV−024	9	22	1	0		CH33−43C	7	14	1	2		CR33−60D	10	6	1	6
	CBX40UHV−030	9	22	1	0								CX34−62C	7	8	1	6
*Amount of charge required in additional to charge shown on unit nameplate.													CX34−62D	7	7	0	0

Table 4. Normal Operating Pressures − Liquid +10 and Vapor +5 PSIG

IMPORTANT

Use table 4 as a general guide when performing maintenance checks. This is not a procedure for charging the unit (Refer to Charging / Checking Charge section). Minor variations in these pressures may be expected due to differences in instal- lations. Significant differences could mean that the system is not properly charged or that a problem exists with some component in the system.

Vapor Pressure

Model		Heating Mode								Cooling Mode
Number
ºF (ºC)*	20	30	40	50	60	65	70	75	80	85	90	95	100	105	110	115
	(−7)	(−1)	(4.5)	(10)	(16)	(18)	(21)	(24)	(27)	(29)	(32)	(35)	(38)	(41)	(43)	(45)
XP13−018	66	80	96	116	136	136	138	138	138	139	140	141	142	144	145	147
XP13−024	65	79	93	112	134	138	139	139	140	141	143	144	145	144	145	146
XP13−030	58	73	88	103	119	139	140	141	141	142	143	144	145	146	147	147
XP13−036	78	87	98	110	128	133	134	134	136	136	137	138	138	139	139	140

XP13−042	60	75	89	108	125	135	136	137	138	139	140	141	142	143	145	146
XP13−048	59	71	84	92	95	135	136	137	138	139	140	142	142	143	144	147
XP13−060	63	76	88	101	113	131	132	133	134	135	136	137	138	139	140	142
*Temperature of the air entering the outside coil.

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