Carrier 38YCB, Product Data

Page: 2 / 20

2
(See heating and cooling performance
tables.) For compressor usage, see
Compressor data table.
Built-in-Reliability
Components
— Includes a suction-
tube accumulator that reduces the
amount of liquid refrigerant that
reaches the compressor; low-pressure
switch to stop the compressor if
refrigerant charge is lost; crankcase
heater on units with reciprocating
compressor and all 3-phase units to
keep compressor oil warm and free of
refrigerant for maximum lubricity;
internal compressor relief valve for
high-pressure protection.
Discharge Silencer — 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 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
treated 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
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 38YCB has sweat
field connections.
Safety — All units are designed and
manufactured in accordance with
Underwriters Laboratories (U.L. 1995)
standard for safety, heating and
cooling equipment.
Model number nomenclature
38YCB 036
Electric Heat Pump
Nominal Capacity
024 — 24,000 Btuh (7.0 Kw) 048 — 48,000 Btuh (14.1 Kw)
036 — 36,000 Btuh (10.6 Kw) 060 — 60,000 Btuh (17.6 Kw)
9 0 1
Packaging
Series
Electrical
7 — 240-1-50
9 — 400-3-50
Quality Assurance