Options And Accessories; Low Ambient Controls; Liquid Propane Conversion Kit; Time Guard Ii Control - Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual

ITEM
Perfect Humidity™ Dehumidification Package
Integrated Economizer — Durablade
Integrated Economizer — EconoMi$er (gear driven)
EconoMi$er with Power Exhaust (Vertical Only)
Power Exhaust for EconoMi$er
High-Static Motor (except 150)
Hinged Access Panels
25% Manual Outdoor-Air Damper
50% Manual Outdoor-Air Damper
Convenience Outlet
Unit Mounted Disconnect
Two-Position Damper (25% Open)
Two-Position Damper (100% Open)
Roof Curb (14 in.)
Roof Curb (24 in.)
Thru-the-Bottom Service Connections
Thermostat and Subbase
Light Commercial Thermostat
Light Commercial Thermidistat
Time Guard® II Control Circuit (3-Phase Units Only)
Motormaster® Low Ambient Control
Motormaster II Low Ambient Control
Motormaster IV Low Ambient Control
Accusensor™ II Enthalpy Control
Accusensor III Differential Enthalpy Sensor

Liquid Propane Conversion Kit

Flue Discharge Deflector
Flue-Hood Protector Assembly
Coil Guard Grille
Condenser Coil Hail Guard
Fan/Filter Status Switch
Corrosion Resistant Coils
*Indicates a factory-installed option.
†Indicates a field-installed accessory.
The 581B036-150 standard units are designed to operate in cooling at outdoor temperatures
down to 25 F. With accessory Motormaster control (condenser-fan speed modulation), or Motor-
master II control (condenser-fan cycling), units can operate at outdoor temperatures down to
–20 F. The head pressure controls, which mount in the condenser section, control the
condenser-fan motor to maintain correct condensing temperature.
MOTORMASTER I

OPTIONS AND ACCESSORIES

LOW AMBIENT CONTROLS

MOTORMASTER II

TIME GUARD II CONTROL

Time Guard II Control automatically prevents compressor
from restarting for at least 5 minutes after a shutdown.
Field-installed accessory prevents short cycling of com-
pressor if thermostat is rapidly changed. Time Guard II
device mounts in the control compartment of unit. The
Time Guard II device is not required when a programma-
ble thermostat is applied.
OPTION* ACCESSORY†
X
X X
X X
X
X
X
X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
6
LIQUID PROPANE CONVERSION KIT
BURNER SPUDS
(ORIFICES)
Liquid propane conversion kit allows
the unit to utilize a liquid propane fuel
supply in areas where natural gas is
not available. (Kit shown
sizes 036-072.)
is for