Bryant 580D User Manual
Page 72
GUIDE SPECIFICATIONS — 579F180-300
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11. Enthalpy Sensor:
a. For use with economizer only.
b. Capable of comparing heat content (temperature
and humidity) of outdoor air and indoor air and
controlling economizer cut-in point at the most
economical level.
NOTE: Two accessory enthalpy sensors are re-
quired for differential enthalpy control.
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12. Commercial Programmable Thermostat:
Seven-day commercial progammable thermostat
shall be capable of auto-changeover, F/C, 3-stage
heating and 2-stage cooling. Thermostat shall also
be equipped with complete system status display.
13. Winter Start Time-Delay Relay:
Used in conjunction with the accessory low-ambient
kit or head pressure control device, permits opera-
tion in cooling at lower outdoor ambient tempera-
tures. See price pages for more information.
14. Liquid Propane Conversion Kit:
Kit shall contain all the necessary hardware and in-
structions to convert a standard natural gas unit for
use with liquified propane gas.
Copyright 1998 Bryant Heating & Cooling Systems
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
UNIT MUST BE INSTALLED IN ACCORDANCE
WITH INSTALLATION INSTRUCTIONS
Printed in U.S.A.
9/98
CATALOG NO. 5258-001