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38TXA 13.0 SEER
Air Conditioner With R-410A
Installation and Start-Up Instructions
NOTE: Read the entire instruction manual before starting the
installation.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause personal injury or property damage.
Consult a qualified installer, service agency, or your distributor or
branch for information or assistance. The qualified installer or
agency must use factory-authorized kits or accessories when
modifying this product. Refer to the individual instructions pack-
aged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for brazing operations. Have fire extinguisher
available. Read these instructions thoroughly and follow all
warnings or cautions attached to the unit. Consult local building
codes and the National Electrical Code (NEC) for special instal-
lation requirements.
Recognize safety information. This is the safety-alert symbol
.
When you see this symbol on the unit or in instructions and
manuals, be alert to the potential for personal injury.
Understand the signal word DANGER, WARNING, or CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies hazards which
could result in personal injury or death. CAUTION is used to
identify unsafe practices which would result in minor personal
injury or product and property damage.
R-410A systems operate at higher pressures than standard
R-22 systems. Do not use R-22 service equipment or com-
ponents on R-410A equipment.
Before installing or servicing system, always turn off main
power to system. There may be more than 1 disconnect
switch. Turn off accessory heater power if applicable. Elec-
trical shock can cause personal injury or death.
INSTALLATION
Specifications for this unit in residential new construction market
require outdoor unit, indoor unit, refrigerant tubing sets, metering
device, and filter drier listed in presale literature. There can be no
deviation. Consult Application Guideline and Service Manual to
obtain required unit changes for specific applications, and for R-22
retrofit.
Step 1—Check Equipment and Jobsite
UNPACK UNIT — Move to final location. Remove carton taking
care not to damage unit.
INSPECT EQUIPMENT — File claim with shipping company
prior to installation if shipment is damaged or incomplete. Locate
unit rating plate on unit corner panel. (See Fig. 4.) It contains
information needed to properly install unit. Check rating plate to
be sure unit matches job specifications.
Step 2—Install on a Solid, Level Mounting Pad
If conditions or local codes require unit be attached to pad, tiedown
bolts should be used and fastened through knockouts provided in
unit base pan. Refer to unit mounting pattern in Fig. 4. to
determine base pan size and knockout hole location.
When installing, allow sufficient space for airflow, wiring, refrig-
erant piping, and service. Allow 30-in. clearance to service end of
unit and 48 in. above unit. For proper airflow, a 6-in. clearance on
1 side of unit and 12 in. on all remaining sides must be maintained.
Maintain a distance of 24 in. between air conditioners. Position so
snow, ice, and water from roof or eaves cannot fall directly on unit.
On rooftop applications, locate unit at least 6 in. above roof
surface. Where possible, place unit above a load-bearing wall.
Arrange supporting members to adequately support unit and
minimize transmission of vibration to building. Consult local
codes governing rooftop applications.
Step 3—Install TXV (Optional)
The accessory thermostatic expansion valve is specifically de-
signed to operate with R-410A. Do not use an R-22 TXV.An
Fig. 1—38TXA
A92446
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Tab 3a 2a
PC 101 Catalog No. 563-813 Printed in U.S.A. Form 38TXA-1SI Pg 1 1-96 Replaces: New