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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53380002-01 Printed in U.S.A. Form 38AP-1SI Pg 1 8-09 Replaces: New
Installation Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
Step 1 — Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . 1
Step 2 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 1
• DOMESTIC UNITS
• EXPORT UNITS
•PLACING UNITS
Step 3 — Make Refrigerant Piping
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• SIZE REFRIGERANT LINES
• LIQUID LINE SOLENOID VALVE
• THERMOSTATIC EXPANSION VALVES
• LIQUID LINE FILTER DRIER
• LONG LINE APPLICATIONS
• HOT GAS BYPASS
• FINAL CONNECTION AND LEAK TEST
• EVACUATION AND DEHYDRATION
Step 4 — Make Electrical Connections . . . . . . . . . . 26
• POWER SUPPLY
•POWER WIRING
• CONTROL POWER
• FIELD CONTROL WIRING
Step 5 — Install Accessories . . . . . . . . . . . . . . . . . . . . 34
• LOW-AMBIENT OPERATION
• MISCELLANEOUS ACCESSORIES
SAFETY CONSIDERATIONS
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 func-
tions, 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.
INSTALLATION
Step 1 — Inspect Shipment —
Inspect unit for dam-
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 nomen-
clature 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 meth-
od 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.
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 ca-
bles are detached.
WARNING
Open all remote disconnects before servicing this equip-
ment. Failure to do so could result in personal injury from
electric shock.
CAUTION
Puron refrigerant (R-410A) systems operate at higher pres-
sures 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.
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.
CAUTION
All panels must be in place when rigging. Failure to com-
ply 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 fol-
low this caution could result in equipment damage or per-
sonal injury.
GEMINI™ SELECT
38APS025-050,38APD025-100 Air-Cooled Condensing Units
with PURON
®
Refrigerant (R-410A)
50/60 Hz