6
*Factory installed.
†Field installed.
ITEM OPTION* ACCESSORY†
Apollo Communicating Controls X
Disconnect Switch X
EconoMi$er XX
EconoMi$er with Power Exhaust X
Power Exhaust for EconoMi$er X
Durablade Integrated Economizer (Includes Hood) XX
Manual Outdoor-Air Damper X
Condenser Coil Grille X
Electric Heat X
Electronic Programmable Thermostat X
25% Open Two-Position Damper X
100% Open Two-Position Damper X
Roof Curbs (Vertical and Horizontal Discharge) X
Thermostats and Subbases X
Motormaster® I Head Pressure Control (Speed Control) X
Motormaster II Head Pressure Control (Fan Cycling) X
Time Guard® II Control Circuit X
Thru-the-Bottom Service Connections X
Thru-the-Curb Service Connections X
Accusensor™ II Enthalpy Control X
Accusensor III Enthalpy Sensor X
Condenser Coil Hail Guard Assembly X
Fan/Filter Status X
Salt Spray Protection Grille (008-014) X
Logo Kit X
Outdoor-Air Enthalpy Sensor (EconoMi$er) X
Return-Air Enthalpy Sensor (EconoMi$er) X
Return-Air Temperature Sensor (EconoMi$er) X
Indoor-Aair Quality (CO
2
) Sensor (EconoMi$er) X
Options and accessories
HEAD PRESSURE CONTROL
The 50TFF007-014 standard units are designed to operate in cooling at
outdoor temperatures down to –3.8 C (25 F). With accessory Motormas-
ter control (condenser fan speed modulation) or Motormaster II control
(condenser fan cycling) units can operate at outdoor temperatures down
to –17.8 C (0° F). The head pressure controls, which mount in the con-
denser section, control the condenser-fan motor to maintain correct con-
densing temperature. Refer to product ordering or contact your local
Carrier representative for appropriate accessory combinations for
desired outdoor ambient temperature operation.
Motormaster I Control
(007-014)
Motormaster II Control
(007-014)
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