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Accessory Description and Usage (Listed Alphabetically) - - Continued
13. Time- -Delay Relay
An SPST delay relay which briefly continues operation of indoor
blower motor to provide additional cooling after the compressor
cycles off.
NOTE: Most indoor unit controls include this feature. For those
that do not, use the guideline below.
Usage Guideline:
ELECTRICAL DATA
UNIT SIZE
V/PH
18
24
30
36
208/230/1 253
42
48
60
* Permissible limits of the voltage range at which the unit will operate satisfactorily
{ If wire is applied at ambient greater than 30˚ C (86˚ F), consult table 310 ---16 of the NEC (ANSI/NFPA 70). The ampacity of non ---metallic---sheathed cable
(NM), trade name ROMEX, shall be that of 60˚ C (140˚ F) conditions, per the NEC (ANSI/NFPA 70) Article 336 ---26. If other than uncoated (no ---plated), 60
or 75˚ C (140 or 167˚ C) insulation, copper wire (solid wire for 10 AWG or smaller, stranded wire for larger than 10 AWG) is used, consult applicable tables
of the NEC (ANSI/NFPA 70).
Length shown is as measured 1 way along wire path between unit and service panel for voltage drop not to exceed 2%.
}
** Time ---Delay fuse.
FLA --- Full Load Amps
LRA --- Locked Rotor Amps
MCA --- Minimum Circuit Amps
RLA --- Rated Load Amps
NOTE: Control circuit is 24 ---V on all units and requires external power source. Copper wire must be used from service disconnect to unit.
All motors/compressors contain internal overload protection.
A- -WEIGHTED SOUND POWER (DBA)
STANDARD
UNIT SIZE
RATING
18
76
24
76
30
76
36
76
42
77
48
78
60
78
A- -WEIGHTED SOUND POWER (DBA) WITH ACCESSORY SOUND HOOD
STANDARD
UNIT SIZE
RATING
18
74
24
74
30
75
36
75
42
75
48
75
60
75
CHARGING SUBCOOLING (TXV- -TYPE EXPANSION DEVICE)
OPER
COMPR
FAN
VOLTS*
MAX
MIN
LRA
RLA FLA
48.0
9.0
58.3
13.5 0.7
73.0
14.1 1.1
197
79.0
16.7 1.2
112.0
17.9 1.2
117.0
21.8 1.2
134.0
26.4 1.2
TYPICAL OCTAVE BAND SPECTRUM (without tone adjustment)
125
250
56.0
60.0
52.5
62.5
53.5
64.5
52.0
60.0
50.5
58.5
58.0
64.5
53.5
67.0
TYPICAL OCTAVE BAND SPECTRUM (without tone adjustment)
125
250
56.0
60.0
52.0
62.0
53.5
64.5
52.0
62.0
51.0
60.0
59.5
63.5
54.0
63.5
UNIT SIZE ---SERIES
18--- 30
24--- 30
30--- 30
36--- 30
42--- 30
48--- 30
60--- 30
For improved efficiency ratings for certain
combinations of indoor and outdoor units. Refer to
ARI Unitary Directory.
14. Winter Start Control
This control is designed to alleviate nuisance opening of the
low- -pressure switch by bypassing it for the first 3 minutes of
operation.
MIN WIRE
MIN WIRE
SIZE{
SIZE{
MCA
60° C
75° C
0.5
11.7
14
14
17.6
14
14
18.7
14
14
22.0
12
12
23.6
10
10
28.4
10
10
34.2
8
8
500
1000
65.0
72.0
66.0
69.5
69.0
70.0
65.5
69.5
63.0
72.0
66.5
69.0
65.5
67.5
500
1000
65.0
69.0
66.5
68.5
69.0
69.5
65.5
67.5
62.5
68.5
66.5
67.5
65.0
66.0
REQUIRED SUBCOOLING (_F)
6
MAX
MAX
LENGTH
LENGTH
(FT)}
(FT)}
60° C
75° C
67
64
45
43
42
40
57
54
85
81
70
67
91
86
2000
4000
65.0
60.5
66.5
62.0
68.5
66.0
64.0
63.0
66.0
62.5
65.0
63.5
65.5
63.0
2000
4000
63.0
60.0
66.0
61.0
68.0
65.5
63.0
61.0
64.0
61.0
64.0
62.0
63.5
61.0
10
11
8
10
12
9
9
MAX FUSE**
or CKT BRK
AMPS
15
25
30
35
40
40
50
8000
53.5
57.0
59.5
56.0
57.5
59.0
60.0
8000
52.5
56.5
59.0
53.5
55.0
55.5
57.0
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