Installing, starting up, and servicing this equipment can be
hazardous due to system pressures, electrical components, and
equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics
should install, start up, and service this equipment.
Untrained personnel can perform basic maintenance functions, such as cleaning coils. All other operations should be
performed by trained service personnel.
When working on the equipment, observe precautions in the
literature, and on tags, stickers, and labels attached to the
equipment and any other safety precautions that may apply.
•Follow all safety codes.
•Wear safety glasses and work gloves.
•Use care in handling, rigging, and setting bulky
equipment.
WARNING
Open all remote disconnects before servicing this equipment. Failure to do so could result in personal injury from
electric shock.
GEMINI™ SELECT
with PURON® Refrigerant (R-410A)
50/60 Hz
CAUTION
Puron refrigerant (R-410A) systems operate at higher pressures than standard R-22 systems. Do not use R-22 service
equipment or components on Puron refrigerant equipment.
If service equipment is not rated for Puron refrigerant,
equipment damage or personal injury may result.
INSTALLATION
Step 1 — Inspect Shipment —
age upon arrival. If damage is found, immediately file a claim
with the shipping company. Verify proper unit delivery by
checking unit nameplate data and the model number nomenclature shown in Fig. 1. See Tables 1-4 for unit physical data.
Step 2 — Rig and Place Unit — All units are de-
signed for overhead rigging, and it is important that this method be used. Lifting holes are provided in the frame base rails. It
is recommended to use shackles in the lifting holes (see rigging
label on the unit and Table 5, and Fig. 2 and 3 for rigging
weights and center of gravity). All panels must be in place
when rigging.
IMPORTANT: To maintain unit stability while lifting,
use 4 cables, chains or straps of equal length. Attach one
end of each cable to shackle attachment point and the
other end of each cable to the overhead rigging point.
Use spreader bars or frame to keep the cables, chains, and
straps clear of the unit sides. Leave standard coil protection
packaging in place during rigging to provide protection to
coils. Remove and discard all coil protection after rigging cables are detached.
CAUTION
All panels must be in place when rigging. Failure to comply could result in equipment damage.
CAUTION
For unit sizes 025 to 060 when handling with a forklift,
handle only through fork pocket holes. Failure to follow
this caution could result in equipment damage or personal
injury.
CAUTION
For unit sizes 070 to 100, do not forklift the unit unless unit
is attached to a skid designed for forklifting. Failure to follow this caution could result in equipment damage or personal injury.
Inspect unit for dam-
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53380002-01Printed in U.S.A.Form 38AP-1SIPg 18-09Replaces: New
DOMESTIC UNITS — Standard 38AP unit packaging con-
38AP D 025 6 4 A 1 0 0 5 0
38AP – Split System Condensing UnitPackaging/Security Options
EMM — Energy Management Module
MCHX — Microchannel Heat Exchanger
a38-7100.eps
Fig. 1 — Model Number Nomenclature
sists of coil protection only. Skids are not provided. If overhead
rigging is not available at the jobsite, place the unit on a skid or
pad before dragging or rolling. When rolling, use a minimum
of 3 rollers. When dragging, pull the pad or skid. Do not applyforce to the unit. When in final position, raise from above to lift
unit off the pad or skid.
EXPORT UNITS — All export units are mounted on skids
with vertical coil protection. Leave the unit on the skid until it
is in final position. While on the skid, the unit can be rolled orskidded. Apply force to the skid, not to the unit. Use a minimum of 3 rollers when rolling. When in final position, raise
from above to remove the skid.
PLACING UNITS — When considering location of the unit,
be sure to consult National Electrical Code (NEC, U.S.A.) and
local code requirements. Allow sufficient space for airflow,
wiring, piping, and service. The placement area must be level
and strong enough to support the operating weight of the unit.
(See Table 5.) When unit is in proper location, use of mounting
holes in base rails is recommended for securing unit to
supporting structure. For mounting unit on vibration isolators,
4 x 24 in. perimeter support ASTM “C” channels between unit
and the isolators are recommended with a minimum of 4 channels per unit. Fasteners for mounting unit are field supplied.
See Fig. 4.
Refer to Fig. 5-8 for airflow clearances. Recommended
minimum clearances are 6 ft (1829 mm) for unrestricted airflow and service on sides of unit, 4 ft (1219 mm) on ends, and
unrestricted clear air space above the unit. Provide ample space
to connect liquid and suction lines to indoor unit. For multiple
units, allow 10 ft (3048 mm) separation between airflow
surfaces. If walls surround the unit, wall height should not exceed the top of the unit fan discharge. Installation in a pit is not
recommended.
IMPORTANT: Be sure to mount unit level to ensure
proper oil return to compressors.
Refer to Fig. 9 for outdoor fan and compressor layout.
Refer to Fig. 10 and 11 for unit piping installation. See
Table 6 for refrigerant specialties part numbers.
2
Table 1 — 38AP025-050 Unit Physical Data — English
Digital Option22222222222244334433
CRANKCASE HEATER (W) (each compressor)90
CONDENSER FANS
StandardPropeller Type - Direct Drive
Quantity2222223333
RPM1140 (60 Hz), 950 (50 Hz)
Diameter (in.)30
Total Watts (60 Hz)3300330033003300330033004200420042004200
Total Watts (50 Hz)2750275027502750275027503500350035003500
Low Noise
Quantity2222223333
RPM
Diameter (in.)30
Total Watts (60 Hz)2750275027502750275027503500350035003500
Total Watts (50 Hz)2300230023002300230023002900290029002900
CONDENSER COILMCHX Type
No. Coils per Circuit11
sq ft27.127.133.933.933.933.967.867.867.867.8
TEMPERATURE RELIEFFusible Plug on Liquid Lines of Each Circuit - 210 F
CONNECTIONS (in.) ODF (CKT A/CKT B)
Suction Line 1
Liquid Line
MAXIMUM HEIGHT FOR 3° F SUBCOOLING
(ft)†
CAPACITY PER CIRCUIT (%) (CKT A/CKT B)50/5010050/5010050/5010054/4610048/52100
MINIMUM UNIT CAPACITY (%)50505050505023332333
*Typical operating charge with 25 ft of interconnecting piping. Operating
charge is approximate for maximum system capacity. Unit is factory supplied
with nitrogen holding charge. Refrigerant charge for dual circuit units is the
total for both circuits.
†Maximum vertical separation between evaporator coil and condensing unit if
condensing unit is below the evaporator.
28243026302652405240
11 (2)11 (2)13 (2)13 (2)15 (2)15 (2)10 (2)/
8.5 (2)
13 (3)11 (2)/
13 (2)
Shrouded Axial Fan - Direct Drive
850 (60 Hz), 700 (50 Hz)
3
/8 / 13/815/813/8 / 13/815/813/8 / 13/815/
5
/8 / 5/
5
5
/
8
/8 / 5/
8
5
5
/
8
/8 / 5/
8
8
15/8 / 15/
8
7
5
/
/8 / 5/
8
21/
8
8
15/8 / 15/
8
7
/
8
5
/8 / 5/
8
8
75757575757575757575
15 (3)
21/
7
/
8
8
3
Table 2 — 38AP060-100 Unit Physical Data — English
*Typical operating charge with 25 ft of interconnecting piping. Operating
charge is approximate for maximum system capacity. Unit is factory supplied
with nitrogen holding charge. Refrigerant charge for dual circuit units is the
total for both circuits.
†Maximum vertical separation between evaporator coil and condensing unit if
*Typical operating charge with 7.62 m of interconnecting piping. Operating
charge is approximate for maximum system capacity. Unit is factory supplied
with nitrogen holding charge. Refrigerant charge for dual circuit units is the
total for both circuits.
†Maximum vertical separation between evaporator coil and condensing unit if
*Typical operating charge with 7.62 m of interconnecting piping. Operating
charge is approximate for maximum system capacity. Unit is factory supplied
with nitrogen holding charge. Refrigerant charge for dual circuit units is the
total for both circuits.
†Maximum vertical separation between evaporator coil and condensing unit if
condensing unit is below the evaporator.
6
Table 5 — Operational Corner Weights with Refrigerant Charge (Approximate)