INSTALLATION INSTRUCTIONS
R
−
410A Split System Air Conditioner
2
421 01 5104 02
Specifications subject to change without notice.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock, or other conditions which may cause death, 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 packaged with
the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Use quenching cloth for brazing
operations. Have fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. Consult local
building codes and current editions of the National Electrical
Code ( NEC ) NFPA 70. In Canada, refer to current editions
of the Canadian electrical code CSA 22.1.
Recognize safety information. This is the safety
−
alert symbol
!
!
When you see this symbol on the unit and in instructions
or manuals, be alert to the potential for personal injury.
Understand these signal words; DANGER, WARNING, and
CAUTION. These words are used with the safety
−
alert
symbol. DANGER 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. NOTE is used to highlight suggestions which
will
result in enhanced installation, reliability, or operation.
INSTALLATION RECOMMENDATIONS
NOTE
: In some cases noise in the living area has been
traced to gas pulsations from improper installation of
equipment.
1. Locate unit away from windows, patios, decks, etc.
where unit operation sound may disturb customer.
2. Ensure that vapor and liquid tube diameters are
appropriate for unit capacity.
3. Run refrigerant tubes as directly as possible by
avoiding unnecessary turns and bends.
4. Leave some slack between structure and unit to
absorb vibration.
5. When passing refrigerant tubes through the wall, seal
opening with RTV or other pliable silicon
−
based caulk.
(See Fig. 1.)
6. Avoid direct tubing contact with water pipes, duct work,
floor joists, wall studs, floors, and walls.
7. Do not suspend refrigerant tubing from joists and studs
with a rigid wire or strap which comes in direct contact
with tubing.(See Fig. 1.)
8. Ensure that tubing insulation is pliable and completely
surrounds vapor tube.
9. When necessary, use hanger straps which are 1 in.
(25.4 mm) wide and conform to shape of tubing
insulation. (See Fig. 1.)
10. Isolate hanger straps from insulation by using metal
sleeves bent to conform to shape of insulation.
Figure 1
Connecting Tube Installation
INSULATION
VAPOR TUBE
LIQUID TUBE
OUTDOOR WALL
INDOOR WALL
LIQUID TUBE
VAPOR TUBE
INSULATION
CAULK
Avoid contact between tubing and structure
NOTE:
THROUGH THE WALL
HANGER STRAP
(AROUND VAPOR
TUBE ONLY)
JOIST
1
″
(25.4 mm)MIN.
SUSPENSION
Outdoor unit contains system refrigerant charge for operation
with AHRI rated indoor unit when connected by 15 ft. (4.57
m) of field
−
supplied or factory accessory tubing. For proper
unit operation, check refrigerant charge using charging
information located on control box cover and/or in the Check
Charge section of this instruction.
IMPORTANT
: Maximum liquid
−
line size is 3/8
−
in. OD for all
residential applications including long line.
IMPORTANT
: Always install the factory
−
supplied liquid
−
line
filter drier. Obtain replacement filter driers from your
distributor or branch.
INSTALLATION
!
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal
injury or equipment damage.
R
−
410A refrigerant systems operate at higher pressures
than standard R
−
22 systems. Do not use R
−
22 service
equipment or components on R
−
410A refrigerant
equipment.
Specifications for this unit in residential new construction
market require the outdoor unit, indoor unit, refrigerant tubing
sets, metering device, and filter drier listed in presale
literature. There can be no deviation.
Check Equipment and Job Site
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. It contains information needed to
properly install unit. Check rating plate to be sure unit
matches job specifications.
Install on a Solid, Level Mounting Pad
If conditions or local codes require the unit be attached to
pad, tie down bolts should be used and fastened through
knockouts provided in unit base pan. Refer to unit mounting
pattern in Fig. 2 to determine base pan size and knockout
hole location.
