Model Number Nomenclature - Carrier 38YCA Series Product Data

Built-in-Reliability
Components — Includes a suction-tube
accumulator that reduces the amount of
liquid refrigerant that reaches the
compressor; a low-pressure switch to
stop the compressor if refrigerant charge
is lost; a crankcase heater on units with
reciprocating compressor and all
3-phase units to keep compressor oil
warm and free of refrigerant for
maximum lubricity; an internal
compressor relief valve for high-pressure
protection.
Discharge Muffler — Minimizes
low frequency sound and pressure
pulsation generated by compressor
discharge gas.
Defrost Control Board — Incorporates
a defrost relay, defrost timer, and
low-voltage terminations. The defrost
control is a time and temperature

Model number nomenclature

Electric Heat Pump
Nominal Capacity
018—18,000 Btuh 042—42,000 Btuh
024—24,000 Btuh 048—48,000 Btuh
030—30,000 Btuh 060—60,000 Btuh
036—36,000 Btuh
2
initiation/termination control which
includes 3 field-selectable time periods of
30, 50, and 90 minutes. The control
includes built-in 5-minute compressor
delay for units equipped with scroll
compressors (see Compressor data table).
Weather-Protective Cabinet — Steel is
protected with a heavy coating
commonly called "galvanizing," and
coated with a layer of zinc phosphate. A
coat of modified polyester powder
coating is then applied and baked-on,
providing each unit with a hard, smooth
finish that will last for many years.
All screws on cabinet exterior are coated
for a long-lasting rust-resistant, quality
appearance.
Unit Design — All units are equipped
with totally enclosed fan motors for
greater reliability under rain and snow
38YCA 018 3 5 1
Packaging
Series
Electrical
3—208/230-1
5—208/230-3
6—460-3
conditions. The large, wraparound coil
uses copper tube and enhanced
aluminum fin and is designed for
optimum heat transfer during heating
and cooling. The vertical air discharge
carries the sound and air up and away
from adjacent patio areas and foliage.
Coils can be cleaned with a common
garden hose.
External Service Valves — Both service
valves are brass, front seating type.
Valves are externally located so
refrigerant tube connections can be
made quickly and easily. Each valve has a
service port for ease of checking
operating refrigerant pressures. The
38YCA has sweat field connections.
The 38YCN has mechanical field
connections.
Warranty — Standard 1 year on
parts. Additional 4 years on
compressor.