Bryant 558D Automobile User Manual


 
Head Pressure Control Kit consists of an outdoor-air ther-
mostat that permits adequate head pressure control during
cooling operation at low outdoor-ambient temperatures.
Refer to Trade Prices for more details or contact your local
representative.
SUGGESTED USE:
When cooling at low-ambient outdoor temperatures is
desired.
NOTE: The head pressure control is not necessary for 036-150
units to allow cooling operation down to 25 F.
Low-Ambient Kit Kit consists of a solid-state control and
condenser coil temperature sensor to cycle the condenser-fan
motors in order to maintain condenser-coil head pressure for
proper cooling operation. Refer to Trade Prices for more
details or contact your local representative.
SUGGESTED USE:
Whenever cooling is required at low outdoor ambient tem-
peratures (as low as −20 F).
Low-ambient kit is not usually required when economizer is
used.
Electric Heat Packages Each package consists of one or
more heater modules. Each module slides into keyed mounting
slots in the fan discharge section.
SUGGESTED USE:
To provide heat in the unit when required.
Single Point Packages (036-150 Units) — Each package con-
sists of a control box, which provides a watertight and UL and
UL Canada approved connection point for electric heat kits.
SUGGESTED USE:
Required with all electric heat packages for UL and UL
Canada approved single point electrical connection on 036-
150 units.
Thermostats and Subbases Provide staged cooling and
heating, automatic (or manual) changeover, fan control, and in-
dicator light.
SUGGESTED USE:
To control unit operations.
Barometric Relief Package (180-300 Units) This package
is useful when it is necessary to remove excess pressure from
the conditioned space.
NOTE: Optional economizer is required with this accessory.
SUGGESTED USE:
When the job requires the ability to relieve internal building
pressure using 180-300 units.
Power Exhaust (180-300 Units) This package is useful
when it is necessary to remove excess pressure from the con-
ditioned space.
NOTE: Optional economizer is required with this accessory.
SUGGESTED USE:
When the job requires the ability to relieve internal building
pressure and pressure losses through the return-air ductwork
are greater than 0.20 in. wg using 180-300 units.
When the job requires the ability to move large quantities
of air to relieve pressure in the conditioned space using
180-300 units.
Winter Start Time Delay Relay (216-300 Units) Used in
conjunction with accessory low-ambient kit or head pressure
control device, permits operation in cooling at lower outdoor am-
bient temperatures. SeeTrade Prices for more details or contact
your local representative.
SUGGESTED USE:
When job requires the ability to operate in cooling at low
outdoor-ambient temperatures.
Thru-The-Bottom Power Connection (036-150 Units)
Used to make power connections through the bottom of the unit.
SUGGESTED USE:
When utility connections need to be made through the bottom
of the unit.
MODEL DESCRIPTION
(ODS Model Number)
LEGEND
ODS Order Distribution System
*Refer to Trade Price Sheets or contact your local representative for specific information regarding which options are available on which units.
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