6
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:
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.
ELECTRICAL DATA
UNIT SIZE V/PH
OPER
VOLTS*
COMPR FAN
MCA
MIN WIRE
SIZE{
60° C
MIN WIRE
SIZE{
75° C
MAX
LENGTH
(FT)}
60° C
MAX
LENGTH
(FT)}
75° C
MAX FUSE**
or CKT BRK
AMPS
MAX MIN LRA RLA FLA
18
208/230/1 253 197
48.0 9.0 0.5 11.7 14 14 67 64 15
24 58.3 13.5 0.7 17.6 14 14 45 43 25
30 73.0 14.1 1.1 18.7 14 14 42 40 30
36 79.0 16.7 1.2 22.0 12 12 57 54 35
42 112.0 17.9 1.2 23.6 10 10 85 81 40
48 117.0 21.8 1.2 28.4 10 10 70 67 40
60 134.0 26.4 1.2 34.2 8 8 91 86 50
* 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 --- F u l l L o a d A m ps
LRA --- L o c k ed R o to r A m p s
MCA --- Minimum Circuit Amps
RLA ---RatedLoadAmps
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)
UNIT SIZE
STANDARD
RATING
TYPICAL OCTAVE BAND SPECTRUM (without tone adjustment)
125 250 500 1000 2000 4000 8000
18 76 56.0 60.0 65.0 72.0 65.0 60.5 53.5
24 76 52.5 62.5 66.0 69.5 66.5 62.0 57.0
30 76 53.5 64.5 69.0 70.0 68.5 66.0 59.5
36 76 52.0 60.0 65.5 69.5 64.0 63.0 56.0
42 77 50.5 58.5 63.0 72.0 66.0 62.5 57.5
48 78 58.0 64.5 66.5 69.0 65.0 63.5 59.0
60 78 53.5 67.0 65.5 67.5 65.5 63.0 60.0
A --WEIGHTED SOUND POWER (DBA) WITH ACCESSORY SOUND HOOD
UNIT SIZE
STANDARD
RATING
TYPICAL OCTAVE BAND SPECTRUM (without tone adjustment)
125 250 500 1000 2000 4000 8000
18 74 56.0 60.0 65.0 69.0 63.0 60.0 52.5
24 74 52.0 62.0 66.5 68.5 66.0 61.0 56.5
30 75 53.5 64.5 69.0 69.5 68.0 65.5 59.0
36 75 52.0 62.0 65.5 67.5 63.0 61.0 53.5
42 75 51.0 60.0 62.5 68.5 64.0 61.0 55.0
48 75 59.5 63.5 66.5 67.5 64.0 62.0 55.5
60 75 54.0 63.5 65.0 66.0 63.5 61.0 57.0
CHARGING SUBCOOLING (TXV--TYPE EXPANSION DEVICE)
UNIT SIZE---SERIES REQUIRED SUBCOOLING (_F)
18---30 10
24---30 11
30---30 8
36---30 10
42---30 12
48---30 9
60---30 9
24ABA4
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