Carrier 38HDL018-060 specifications Maintenance, Lubrication, Recommended Compressor Oils

MAINTENANCE

Before performing recommended maintenance, be sure unit main power is off. Failure to do so may result in electrical shock or injury from rotating fan blades.

Lubrication

FAN-MOTOR BEARINGS Ð Oiling holes are provided at each end of the condenser-fan motor. Remove fan motor and lubricate motor with 32 drops (16 drops per hole) of SAE-10 (Society of Automotive Engineers) non-detergent oil at in- tervals described below:

·Annually, when environment is very dirty, ambient tem- perature is higher than 105 F (40 C), and average unit op- erating time exceeds 15 hours a day, or

·Every three years, when environment is reasonably clean, ambient temperature is less than 105 F (40 C), and unit operating time averages 8 to 15 hours per day, or

·Every 5 years when environment is clean, ambient tem- perature is less than 105 F (40 C), and unit operating time averages less than 8 hours per day.

COMPRESSOR Ð Compressor contains factory oil charges; replace oil when lost. See Tables 1A and 1B for oil recharge and refer to Carrier Standard Service Techniques Manual, Chapter 1, pages 1 to 21 for oil recharging procedure. See Table 7 for recommended compressor oils.

Cleaning Coils Ð Coil should be washed out with wa- ter or blown out with compressed air. Note that the blow- thru design causes dirt and debris to build up on the inside of the coils.

Clean coil annually or as required by location and outdoor air conditions. Inspect coil monthly and clean as required. Fins are NOT continuous through coil sections. Dirt and de- bris may pass through the ®rst section, become trapped be- tween the rows of ®ns, and restrict condenser air¯ow. Use a ¯ashlight to determine if dirt or debris has collected between coil sections. Clean coil as follows:

1.Turn off unit power.

2.Use a garden hose or other suitable equipment to ¯ush coil from the outside to remove dirt. Be sure to ¯ush all dirt and debris from drain holes in the base of unit. Fan motors are waterproof.

Table 6A Ð Required Liquid Line Temperature (F) Ð English (At Service Valve)

REQUIRED									LIQUID PRESSURE AT SERVICE VALVE (PSIG)
SUBCOOLING (F)	134	141	148	156	163	171	179	187	196	205	214	223	233	243	253	264	274	285	297	309	321	331	346	359
0	76	79	82	85	88	91	94	97	100	103	106	109	112	115	118	121	124	127	130	133	136	139	142	145
5	71	74	77	80	83	86	89	92	95	98	101	104	107	110	113	116	119	122	125	128	131	134	137	140
10	66	69	72	75	78	81	84	87	90	93	96	99	102	105	108	111	117	120	123	126	129	129	132	135
15	61	64	67	70	73	76	79	82	85	88	91	94	97	100	103	106	109	112	115	118	121	124	127	130
20	56	59	62	65	68	71	74	77	80	83	86	89	92	95	98	101	104	107	110	113	116	119	122	125
25	51	54	57	60	63	66	69	72	75	78	81	84	87	90	93	96	99	102	105	108	111	114	117	120

Table 6B Ð Required Liquid Line Temperature (C) Ð SI (At Service Valve)

REQUIRED									LIQUID PRESSURE AT SERVICE VALVE (PSIG)
SUBCOOLING (C)	911	969	1030	1061	1121	1186	1219	1286	1360	1397	1471	1547	1588	1671	1755	1800	1885	1976	2026	2125	2222	2264	2379	2475
0	24	26	28	29	31	33	34	36	38	39	41	43	44	46	48	49	51	53	54	56	58	59	61	63
2	22	24	26	27	29	31	32	34	36	37	39	41	42	44	46	47	49	51	52	54	56	57	59	61
4	20	22	24	25	27	29	30	32	34	35	37	39	40	42	44	45	47	49	50	52	54	55	57	59
6	18	20	22	23	25	27	28	30	32	33	35	37	38	40	42	43	45	47	48	50	52	53	55	57
8	16	18	20	21	23	25	26	28	30	31	33	35	36	38	40	41	43	45	46	48	50	51	53	55
10	14	16	18	19	21	23	24	26	28	29	31	33	34	36	38	39	41	43	44	46	48	49	51	53
12	12	14	16	17	19	21	22	24	26	27	29	31	32	34	36	37	39	41	42	44	46	47	49	51
14	10	12	14	15	17	19	20	22	24	25	27	29	30	32	34	35	37	39	40	42	44	45	47	49

Table 7 Ð Recommended Compressor Oils

RECOMMENDED			UNIT 38HDL
OIL	018	024	030	036	048	060
3GS				·
Calumet RO-15				·
Sontex 200LT	·	·	·		·	·

10