Accessory Description and Usage (Listed Alphabetically) - CONTINUED
213R
11. Outdoor Air Temperature Sensor
Designed for use with Bryant 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 Bryant thermostats listed in this publication.
12. Outdoor Thermostat
An SPDT
Usage Guideline:
Electric supplemental heat applications in
Usage Guideline:
Some local codes may require limiting the heating head pressure in the vapor line in some applications.
13. Secondary Outdoor Thermostat
An SPDT
Usage Guideline:
Outdoor thermostat applications where electric heater is capable of
14. Sound Hood
Wraparound sound reducing cover for the compressor. Reduces the sound level up to 2 dBA.
Usage Guideline:
Suggested when unit is installed closer than 15 ft to quiet areas, bedrooms, etc.
Suggested when unit is installed between two houses less than 10 ft apart.
Usage Guideline:
Suggested in the following applications:
Heat pump installations in heavy snowfall areas. Heat pump installations in snowdrift locations.
Heat pump installations in areas of prolonged subfreezing temperatures.
All commercial installations.
15. Thermostatic Expansion Valve (TXV) Bi-Flow
Amodulating
Usage Guideline:
Required in all heat pump applications
16. 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:
6