Accessory usage guideline, Sound power (dba) – Bryant 593C User Manual
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ACCESSORY DESCRIPTION AND USE (Listed Alphabetically) Continued
17. Time Delay Relay
An SPST delay relay which briefly continues operation of the indoor blower motor to provide additional cooling after the compressor cycles off.
SUGGESTED USE: For improved efficiency ratings for certain combinations of indoor and outdoor units. Refer to ARI Unitary Directory.
18. Winter Start Control
An SPST delay relay which bypasses the low-pressure switch for approximately 3 minutes to permit start-up for cooling operation under low load
conditions.
SUGGESTED USE: All air conditioners where Low-Ambient Controller has been added.
ACCESSORY USAGE GUIDELINE
* For tubing line sets greater than 50 ft and/or 20 ft vertical differential, refer to Residential Split-system Long-Line Application Guideline and Service Manual.
† Only when low-pressure switch is used.
‡ Required for Low-Ambient Controller (full modulation feature) and MotorMaster® Control only.
SOUND POWER (dBA)
ACCESSORY
REQUIRED FOR
LOW-AMBIENT
APPLICATIONS
(Below 55°F)
REQUIRED FOR
LONG-LINE
APPLICATIONS*
(Over 50 Ft)
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within 2 Miles)
Crankcase Heater
Yes
Yes
No
Evaporator Freeze Thermostat
Yes
No
No
Winter Start Control
Yes†
No
No
Accumulator
No
No
No
Compressor Start Assist
Capacitor and Relay
Yes
Yes
No
MotorMaster® Control
or
Low-Ambient Pressure Switch
Yes
No
No
Wind Baffle
See Low-Ambient Instructions
No
No
Coastal Filter
No
No
Yes
Support Feet
Recommended
No
Recommended
Liquid-Line Solenoid Valve
or
Hard Shutoff TXV
No
See Long-Line
Application
Guideline
No
Ball Bearing Fan Motor
Yes‡
No
No
Unit
Size
Sound
Level
(dBA)
OCTAVE BAND CENTER FREQUENCY (Hz)
125
250
500
1000
2000
4000
8000
018-C, D
76
54.0
63.5
66.0
66.0
65.0
62.5
55.5
024-C, D
78
53.0
69.0
69.5
71.0
68.5
64.5
60.5
030-C, D
80
53.5
64.0
66.5
69.5
69.0
65.0
58.5
036-C, D
80
57.0
65.5
71.0
75.0
71.0
67.5
62.0
042-C, D
80
62.5
69.0
72.0
75.0
72.0
69.5
62.5
048-C
82
63.0
71.0
71.0
72.0
73.5
68.0
63.5
060-C
82
61.5
69.5
71.0
74.5
70.0
69.0
66.0