Bryant 581B manual Options And Accessories, Low Ambient Controls, Time Guard Ii Control

OPTIONS AND ACCESSORIES

ITEM	OPTION*	ACCESSORY†
Perfect Humidity™ Dehumidification Package	X
Integrated Economizer — Durablade	X	X
Integrated Economizer — EconoMi$er (gear driven)	X	X
EconoMi$er with Power Exhaust (Vertical Only)		X
Power Exhaust for EconoMi$er		X
High-Static Motor (except 150)	X
Hinged Access Panels	X
25% Manual Outdoor-Air Damper	X	X
50% Manual Outdoor-Air Damper		X
Convenience Outlet	X
Unit Mounted Disconnect	X
Two-Position Damper (25% Open)		X
Two-Position Damper (100% Open)		X
Roof Curb (14 in.)		X
Roof Curb (24 in.)		X
Thru-the-Bottom Service Connections		X
Thermostat and Subbase		X
Light Commercial Thermostat		X
Light Commercial Thermidistat		X
Time Guard® II Control Circuit (3-Phase Units Only)		X
Motormaster® Low Ambient Control		X
Motormaster II Low Ambient Control		X
Motormaster IV Low Ambient Control		X
Accusensor™ II Enthalpy Control		X
Accusensor III Differential Enthalpy Sensor		X
Liquid Propane Conversion Kit		X
Flue Discharge Deflector		X
Flue-Hood Protector Assembly		X
Coil Guard Grille		X
Condenser Coil Hail Guard		X
Fan/Filter Status Switch		X
Corrosion Resistant Coils	X
*Indicates a factory-installed option.
†Indicates a field-installed accessory.

LOW AMBIENT CONTROLS

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

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.

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 is for sizes 036-072.)

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