Model Number Nomenclature; System Design - Carrier 38TUA Product Data

The coil is protected with an
enhanced coil guard. With spacing of
3/8 in. and construction of coated 12
gage wire, the guard helps to protect
from inclement weather (hail),
vandalism, and incidental damage.
Totally Enclosed Fan Motor — Means
greater reliability under adverse weather
conditions and dependable performance
for many years. The permanent-split-
capacitor type motor was designed for
optimum efficiency. The motor was
tested and qualified under extreme
conditions to ensure the greatest
reliability.
Unit Design — Copper tube and
enhanced aluminum fin coil are designed
for optimum heat transfer. Vertical air
discharge carries sound and hot
condenser air up and away from adjacent
patio areas and foliage. Heat pump style
drain pan allows for easy removal of
water, dirt and leaves.
Quality Assurance
REGISTERED QUALITY SYSTEM

Model number nomenclature

Deluxe Split-System Air Conditioner
Nominal Capacity
024 — 24,000 Btuh (7.0 Kw)
036 — 36,000 Btuh (10.6 Kw) 060 — 60,000 Btuh (17.6 Kw)

System Design

1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than
0.01-in. wg.
2. Minimum outdoor operating air temperature without low-ambient operation accessory is 55°F (12.8°C).
3. Maximum outdoor operating air temperature is 125°F (51.7°C).
4. For reliable operation, unit should be level in all horizontal planes.
5. Maximum elevation of indoor coil above or below base of outdoor unit is: indoor coil above = 50 ft (15.24m), indoor coil
below = 150 ft (45.72m).
6. For interconnecting refrigerant tube lengths greater than 50 ft (15.24m) or 20 ft (6.1m) vertical differential, consult the
Residential Split-System Long-Line Application Guideline available from equipment distributor.
7. Crankcase heater required when interconnecting refrigerant tube length exceeds 50 ft (15.24m).
8. If any refrigerant tubing is buried, provide a minimum 6 in. (152mm) vertical rise to the valve connections at the unit.
Refrigerant tubing lengths up to 36 in. (912mm) may be buried without further consideration. For buried lines longer than
3 ft (912mm), consult your local distributor.
9. Use only copper wire for electric connection at unit. Aluminum and clad aluminum are not acceptable for the type of
connector provided.
10. Mix-matches of indoor coil capacity more than 1 size larger than outdoor unit capacity may result in inadequate indoor
comfort.
11. Do not apply capillary tube indoor coils to these units.
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Application Versatility — The 38TUA
can be combined with a wide variety of
evaporator coils and blower packages to
provide quiet, dependable comfort. Unit
can be installed on a roof or at ground
level.
External Service Valves — Both service
valves are brass, back seating type with
sweat connections. 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.
Easy Serviceability — One access
panel provides access to electrical
control box and compressor. Removal of
wire dome gives access to fan motor and
removal of the top gives access to the
coil. All models are equipped with a
compressor terminal plug.
Pressure Switches — All units are
equipped with high and low pressure
switches.
38TUA
048 — 48,000 Btuh (14.1 Kw)
024
7 4
Electrical
7 — 230-1-50
9 — 400-3-50
Additional Compressor Protection —
Each compressor is protected with
internal temperature- and current-
sensitive overloads.
Safety — All units are designed and
manufactured in accordance with
Underwriters Laboratories (UL 1995)
safety standard for heating and cooling
equipment.
Standard Features — All units are
equipped with the Tech 2000 Silencer
System consisting of energy efficient fan
and motor, advanced sound hood, and
compressor vibration isolator plate.
Units are also equipped with high- and
low-pressure switches and a crankcase
heater.
3-Phase Monitor Board — Control
board that monitors the electrical phase
and prevents operation if wired
incorrectly.
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Packaging
Series