Options And Accessories; Head Pressure Control; Electronic Programmable Thermostat; Emergency Heat Control Package - Carrier 50TFQ004 Product Data

Options and accessories

ITEM
Apollo Communicating Controls
PremierLink™ Controls
High-Static Motor and Drive
Non-Fused Disconnect Switch
Electrical Convenience Outlet
Durablade Integrated Economizer
EconoMi$er (Vertical)
EconoMi$er with Power Exhaust
EconoMi$er (Horizontal)
Electric Heat**
Manual Outdoor-Air Damper (25%)
Manual Outdoor-Air Damper (50%)
Outdoor Coil Grille
Alternate Drive (008)
Alternate Motor and Drive (004-006, 012)
25% Open Two-Position Damper
100% Open Two-Position Damper
Roof Curbs (Vertical and Horizontal Discharge)
Remote Control Panel
Thermostats and Subbases
Emergency Heat Package
Motormaster® I Head Pressure Control
(Speed Control)
Motormaster II Head Pressure Control
Logo Kit
Time Guard® II Control Circuit
Thru-the-Bottom Utility Connections

Electronic Programmable Thermostat

Accusensor™ II Enthaply Control
Accusensor III Enthalpy Sensor
Outdoor Coil Hail Guard Assembly
Fan/Filter Status
Salt Spray Protection Grille
*Factory installed.
†Field installed.
**Electric heat for 575-v units is only offered on 50TFQ008-012 units.
Accessory single-point kit is required for size 004-012 units using electric heat.
ELECTRONIC PROGRAMMABLE THERMOSTAT
Carrier's electronic programmable thermostat provides efficient tem-
perature control by allowing you to program heating and cooling set-
backs and set ups with provisions for weekends and holidays.
Accessory remote sensing package is also available to provide
tamperproof control in high traffic spaces. Used in conjunction with
factory-installed Apollo control, this thermostat provides a 5-minute
recycle timer between modes of operation for short-cycle protection.
TIME GUARD II CONTROL
Time Guard II Control automatically prevents compressor from
restarting for at least 5 minutes after a shutdown. Accessory pre-
vents short cycling of compressor if thermostat is rapidly changed.
Time Guard II device mounts in the control compartment of unit.
OPTION* ACCESSORY†
X
The 50TFQ standard units are designed to operate in cooling at
outdoor temperatures down to 25 F. With accessory Motormaster
X X
control (outdoor-fan speed modulation), units can operate at out-
X
door temperatures down to –20 F. The head pressure controls,
X which mount in the outdoor section, modulate the outdoor-fan
motor to maintain correct condensing temperature. Refer to price
X
pages or contact your local Carrier representative for appropriate
X X
accessory combinations necessary for desired outdoor ambient
temperature operation.
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

HEAD PRESSURE CONTROL

EMERGENCY HEAT CONTROL PACKAGE

Emergency heat control package allows emergency operation
of electric heat and fans by bypassing compressor circuits and
outdoor thermostats.
MOTORMASTER
MOTORMASTER II
7