Accessory Usage Guideline - Carrier 24ACB7 Performance Product Data

ACCESSORIES
ORDER NUMBER
KAACH1701AAA
KSAHS2501*
KSAHS2801*
KSAHS2601
KSASH2301COP
KSASH2401COP
KAALS0201LLS
KSASF0101AAA
X = Accessory S= Standard
* Not backward compatible to previous series.

ACCESSORY USAGE GUIDELINE

ACCESSORY
Compressor Start Assist Capacitor and Relay
Crankcase Heater
Hard Shut--- Off TXV
Support Feet
* For tubing line sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 35 ft. (10.7 m) vertical differential, refer to Residential Split---System Longline
Application Guideline.
Accessory Description and Usage (Listed Alphabetically)
1. Compressor Start Assist - - Capacitor and Relay
Start capacitor and relay gives a "hard" boost to compressor
motor at each start up.
Usage Guideline:
Required for 2- -stage non- -communicating units in the
following applications:
Long line
Suggested for all compressors in areas with a history of
low voltage problems.
2. Crankcase Heater
An electric resistance heater which mounts to the base of the
compressor to keep the lubricant warm during off cycles.
Improves compressor lubrication on restart and minimizes the
chance of liquid slugging.
Usage Guideline:
Required in low ambient cooling applications.
Required in long line applications.
Suggested in all commercial applications.
3. Outdoor Air Temperature Sensor
Designed for use with Carrier Thermostats listed in this
publication. This device enables the thermostat to display the
outdoor temperature. This device also
is required to enable special thermostat features such as auxiliary
heat lock out.
Usage Guideline:
Suggested for all Carrier thermostats listed in this
publication.
DESCRIPTION
CRANKCASE HTR
HARD START KIT
HARD START KIT
HARD START KIT
SOUND BLANKET
SOUND BLANKET
SOLENOID VALVE KIT
SUPPORT FEET
REQUIRED FOR LONG LINE
24--- 31 36--- 31
X X
X X
X X
X X
X X
APPLICATIONS*
Yes
Yes
Yes
No
4. Support Feet
Four stick- -on plastic feet that raise the unit 4 in. (101.6 mm)
above the mounting pad. This allows sand, dirt, and other debris
to be flushed from the unit base, minimizing corrosion.
Usage Guideline:
Suggested in the following applications:
Coastal installations.
Windy areas or where debris is normally circulating.
Rooftop installations.
For improved sound ratings.
5. Thermostatic Expansion Valve (TXV)
A modulating flow- -control valve which meters refrigerant liquid
flow rate into the evaporator in response to the superheat of the
refrigerant gas leaving the evaporator.
Kit includes valve, adapter tubes, and external equalizer tube.
Hard shut off types are available.
NOTE: When using a hard shut off TXV with single phase
reciprocating compressors, a Compressor Start Assist Capacitor
and Relay is required.
Usage Guideline:
Required to achieve AHRI ratings in certain equipment
combinations. Refer to combination ratings.
Hard shut off TXV or LLS required in air conditioner
long line applications.
Required for use on all zoning systems.
6
48--- 31 60--- 30
S S
X
X
X X
X X
X X
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within 2 miles/3.22 km)
No
No
Yes
Recommended