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a. Kit shall provide connectors to permit gas and electrical connections to be brought to the unit through the
basepan.
22. Fan/Filter Status Switch:
a. Provides status of indoor (evaporator) fan (ON/ OFF) or filter (CLEAN/DIRTY).Status shall be displayed
over communication bus when used with direct digital controls or with an indicator light a t the thermostat.
23. Outdoor Air Enthalpy Sensor:
a. The outdoor air entha lpy sensor shall be used to provide single enthalpy control. W hen used in conjunction
with a return air enthalpy sensor, the unit will provide differential enthalpy c ontrol. The sensor allows the
unit to determine if outside air is suitable for free cooling.
24. Return Air Enthalpy Sensor:
a. The return air enthalpy sensor shall be used in conjunc tion with an outdoor air enthalpy sensor to provide
differential enthalpy control.
25. Indoor Air Quality (CO2) Sensor:
a. Shall be able to provide demand ventilation indoor air quality (IAQ) control.
b. The IAQ sensor shall be available in duct mount, wall mount, or wall mount with LED display. The set
point shallhave adjustment capability.
26. Hinged Panel Option:
a. Hinged panel option provideshinged access panels for the filter, compressor, evaporatorfan, and control
box areas.
b. Filter hinged panels permit tool--lessentry for changing filters.
c. Each hinged panel is permanently attached to the rooftopunit.
27. Smoke detectors:
a. Shall be a Four--WireController and Detector.
b. Shall be environmental compensated withdifferential sensing for reliable, stable, and drift--freesensitivity.
c. Shall use magnet--activatedtest/reset sensor switches.
d. Shall have tool--lessconnection terminal access.
e. Shall have a recessed momentary switchfor testing and resetting the detector.
f. Controller shall include:
i. One set of normally open alarm initiation contacts for connection to an initiating device circuit on a fire
alarm controlpanel
ii. Two Form--C auxiliary alarm relays for interfacewith rooftop unit or other equipment
iii. One Form--Csupervision (trouble) relay to control the operation of the Trouble LED on a remote test/re-
set station
iv. Capable of direct connection to two individual detector modules
v. Can be wired to upto 14 other duct smoke detectors for multiple fan shutdown applications
28. Winter start kit
a. Shall contain a bypass device around the low pressure switch.
b. Shall be required when mechanical cooling below an out door ambient of 40_F(4_C).
c. Shall not be required to operate an equipped econom izer when below an outdoor ambient of 40_F(4_C).
29. Barometric relief
a. Shall include damper, seals, hard--ware, and hoods to relieve excess building pressure.
b. Damper shall gravity--close uponuni t shutdown.
30. Time Guard
a. Shall prevent compressor short cycling by providing a 5--minute delay (±2 minutes) before restarting a
compressor after shutdown for any reason.
b. One device shall be required per compressor.
Manufacturerreserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
E2008Bryant Heating & Cooling SystemsD7310 W. Morris St. DIndianapolis, IN 46231 Printedin U.S.A. EditionDate: 01/08
Replaces:NEW
CatalogNo. PDS558J---01
558J