Bryant 580D manual Copyright 1998 Bryant Heating & Cooling Systems

GUIDE SPECIFICATIONS Ð 579F180-300

*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.

*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 liqui®ed propane gas.

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

UNIT MUST BE INSTALLED IN ACCORDANCE WITH INSTALLATION INSTRUCTIONS

Copyright 1998 Bryant Heating & Cooling Systems Printed in U.S.A. 9/98 CATALOG NO. 5258-001