Accessory Usage Guideline - Bryant PREFERRED 226A Series Product Data

ACCESSORIES
KIT NUMBER
KHALS0401LLS
KHASS0606MPK*
KSAHS2501AAA{
KSAHS2801AAA{
KSASF0101AAA
KSASH2301COP
KSASH2401COP
x = Accessory S = Standard
* Available from RCD
{ Not backward compatible to previous series.

ACCESSORY USAGE GUIDELINE

Accessory
Accumulator
Compressor Start Assist Capacitor and Relay
Crankcase Heater
Hard Shutoff TXV
Liquid Line Solenoid Valve
Support Feet
* For tubing line sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 20 ft. (6.09 m) vertical differential, refer to Residential Piping and Longline 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 reciprocating compressors in the following
applications:
Long line
Low ambient cooling
Hard shut off expansion valve on indoor coil
Liquid line solenoid on indoor coil
Required for single- -phase scroll compressors in the
following applications:
Long line
Low ambient cooling
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. Liquid- -Line Solenoid Valve (LLS)
An electrically operated shutoff valve which stops and starts
refrigerant liquid flow in response to compressor operation. It is to
be installed at the outdoor unit to control refrigerant off cycle
migration in the heating mode.
Usage Guideline:
An LLS is required in all long line heat pump
applications to control refrigerant off cycle migration in
t he heating mode. See Long Line Guideline.
Suggested for all commercial applications.
4. Outdoor Air Temperature Sensor
Designed for use with Bryant Thermostats listed in this
publication. This device enables the thermostat to display the
KIT NAME
SOLENOID VALVE
SNOW STAND
HARD START KIT
HARD START KIT
SUPPORT FEET
SOUND BLANKET
SOUND BLANKET
(Standard with factory ---approved indoor unit)
See Long---Line Application Guideline
024--- B
X
X
X
X
X
REQUIRED FOR
LONG LINE APPLICATIONS*
Standard
Yes
Standard
Yes
Recommended
outdoor temperature. This device also is required to enable special
thermostat features such as auxiliary heat lock out.
Usage Guideline:
Suggested for all Bryant thermostats listed in this
publication.
5. Outdoor Thermostat
An SPDT temperature- -actuated
supplemental electric heaters when outdoor air temperature drops
below a user- -selected set point.
Usage Guideline:
Electric supplemental heat applications in non- -variable
speed indoor units when electric heat staging is desired.
6. Secondary Outdoor Thermostat
An SPDT temperature- -actuated switch which turns on third- -stage
of supplemental electric heaters when outdoor air temperature
drops below the second- -stage set point.
Usage Guideline:
Outdoor thermostat applications where electric heater is
capable of three- -stage operation.
7. Snow Stand
Coated wire rack which supports unit 18 in. (457.2 mm) above
mounting pad to allow for drainage from unit base.
Usage Guideline:
Suggested in the following applications:
Heat pump installations in heavy snowfall areas.
Heat pump installations in snow drift locations.
Heat pump installations in areas of prolonged
subfreezing temperatures.
All commercial installations.
8. Thermostatic Expansion Valve (TXV) Bi- -Flow
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.
Usage Guideline:
Accessory required to meet AHRI rating and system
reliability, where indoor not equipped.
Required in all heat pump applications designed with
Puron refrigerant.
5
036--- B 048--- B
X X
X X
X
X
X X
X
X
REQUIRED FOR
SEA COAST APPLICATIONS
(Within 2 miles / 3.22 km)
Standard
No
Standard
Yes
No
Recommended
switch which
060--- C
X
X
X
X
X
turns on