Bryant High Wall Duct-Free Split System 619E - Manual (Page 2)

The indoor units include protection against freeze-up (heat
pumps), high discharge temperature, and self diagnostics to en-
sure reliability.
RESTART FUNCTION FOR AUTOMATIC START AFTER A
POWER FAILURE eliminates the need to reset the unit after a
power failure. The unit restarts in the same mode that was op-
erating prior to the power failure and retains the selected set
point as well.
AUTOMATIC AIR SWEEP ensures evenly-distributed air within
the conditioned space for ultimate comfort. The air sweep fea-
ture sweeps the air from side to side.
WEATHER-PROTECTED CABINET is protected with a heavy,
galvanized steel coating, then coated again with a layer of zinc
phosphate to which a coat of polyester powder is applied and
baked on. This provides each unit with a hard, smooth finish that
will last for many years.
All screws on the cabinet exterior are coated for long-lasting,
rust-resistant, quality appearance.
TOTALLY ENCLOSED FAN MOTOR means greater reliability
under rain conditions and dependable performance for many
years. Permanent-split-capacitor-type motors provide the most
economical operation.
REFRIGERANT SYSTEM is designed to provide dependability.
Each unit leaves the factory with a refrigerant charge. Additional
charge may be necessary depending on the application. Refrig-
erant service connections make checking operating pressures
easier. For precise refrigerant control, all 538A, 538C, and 538D
fan coil units feature an AccuRater
ா
piston in the fan coil unit,
and 009,012 units feature a capillary in the outdoor unit.
FIELD-INSTALLED ACCESSORY
DESCRIPTION AND USAGE
Condensate Pump — The pump provides condensate lift ca-
pability, and is an accessory for the fan coil units.
SUGGESTED USE:
• The condensate pump accessory is recommended when ad-
equate drain line pitch cannot be provided.
Winter Start Control (538A, 538S) — This condensing unit ac-
cessory is a single-pole, single-throw delay relay which by-
passes the low-pressure switch for approximately 3 minutes to
permit start-up for cooling operation under low load conditions
at low-ambient temperatures.
SUGGESTED USES:
• Applications where low-ambient cooling is required below
40 F outdoor-air temperature.
Wall mount kit — The kit includes brackets to be mounted to
the outside of the structure to raise unit from ground level, or to
mount the unit on a wall adjacent to a sloping roof. The wall
mount kit is also useful in areas of heavy snowfall or where
space is at a premium. The wall mount kit may be used with any
outdoor unit.
SUGGESTED USE:
• When application requires that outdoor unit be installed above
ground level.
Liquid solenoid valve (sizes 018 and larger) — The valve is
an electrically operated shutoff valve to be installed at the out-
door unit, and closes and opens in response to compressor op-
eration. The valve maintains a column of refrigerant in the liquid
line between compressor operation cycles and is required for
certain long-line applications. The valve should be used with all
long-line applications (over 100 ft).
SUGGESTED USE:
• Whenever long-line applications are used.
Low-Ambient Temperature Controls (down to −20 F) (538A,
538C, 538D) — The low-ambient kit is a solid-state head pres-
sure controller designed to control outdoor fan cycling, and is
activated by a pressure sensor. It is specifically designed to con-
trol fan-motor cycles in response to saturated condensing pres-
sure. This device maintains a constant saturated condensing
temperature of 100 F ± 10 F at outdoor-air temperatures be-
tween 55 F and −20 F, and may be used on all 538A, 538C, and
538D outdoor units without changing the outdoor-fan motor.
SUGGESTED USE:
• Applications where a significant amount of unit cooling opera-
tion is necessary at outdoor-air temperatures below 55 F.
Crankcase Heater — Crankcase heaters are only an acces-
sory for those units with scroll compressor(s). Heaters are
standard on units with reciprocating compressors.
SUGGESTED USE:
• Scroll compressor applications where an accessory low-
ambient kit has been installed.
CONTENTS
Page
Model Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
System Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . 9-14
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,16
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . .17,18
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . 19-23
Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . 24-27
Operating Sequence . . . . . . . . . . . . . . . . . . . . . . . . 28-30
Engineers’ Specification Guide . . . . . . . . . . . . . . . . . 31,32
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