installation and
start-up instructions
10 SEER 3 PHASE R-22
SPLIT SYSTEM
AIR CONDITIONER
NOTE: Read the entire instruction manual before starting the
installation.
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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 National
Electrical Code (NEC) for special requirements.
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 the 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 may 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.
WARNING: ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out
and tag switch with a suitable warning label.
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, and decks where
unit-operation sound may disturb customer.
2. Ensure that vapor- and liquid-tube diameters are appropriate
to capacity of unit. (See Table 1.)
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. 2.)
561G
Cancels: II 561C-18-6 II 561G-30-1
3-06
.
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 that comes in direct contact with tubing.
(See Fig. 2.)
8. Ensure that tubing insulation is pliable and completely
surrounds vapor tube.
9. When necessary, use hanger straps which are 1 in. wide and
conform to shape of tubing insulation. (See Fig. 2.)
10. Isolate hanger straps from insulation by using metal sleeves
bent to conform to shape of insulation.
CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
If ANY refrigerant tubing is buried, providea6in.
vertical rise at service valve. Refrigerant tubing lengths
up to 36 in. may be buried without further special
consideration. Do not bury more than 36 inches of
refrigerant tubing in the ground.
I. CHECK EQUIPMENT AND JOB SITE
A. UNPACK UNIT
Move to final location. Remove carton, taking care not to damage
unit.
B. 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.
Fig. 1—Model 561G
INSTALLATION
A98524
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Avoid contact between tubing and structureNOTE:
OUTDOOR WALL INDOOR WALL
CAULK
LIQUID TUBE
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 units. Position so water,
snow, or ice from roof or eaves cannot fall directly on unit.
On rooftop applications, locate unit at least 6 in. above roof
surface. Place unit above a load-bearing wall and isolate unit and
tubing set from structure.
INSULATION
THROUGH THE WALL
JOIST
HANGER STRAP
(AROUND VAPOR
TUBE ONLY)
1″ MIN.
SUSPENSION
INSULATION
LIQUID TUBE
Fig. 2—Connecting Tubing Installation
VAPOR TUBE
VAPOR TUBE
C
A94028
IV. OPERATING AMBIENT
The minimum outdoor operating ambient in cooling mode is 55°F,
and the maximum outdoor operating ambient in cooling mode is
125°F.
V. CHECK INDOOR CHECK-FLO-RATER® PISTON (IF
REQUIRED) OR ADD TXV
Check indoor coil piston to see if it matches the required piston
shown on outdoor unit rating plate. If it does not match, replace
indoor coil piston with piston shipped with outdoor unit. The
piston shipped with outdoor unit is correct for any approved indoor
coil combination.
NOTE: If a TXV is to be installed on indoor unit, remove indoor
coil piston and follow Section VI.
VI. INSTALL TXV
IMPORTANT: If not factory installed, the TXV should be
mounted as close to the indoor coil as possible and in a vertical
upright position. Avoid mounting the inlet tube vertically down.
Valve is more susceptible to malfunction due to debris if inlet tube
is facing down. A factory-approved filter drier must be installed in
the liquid line.
A. Installing TXV in Place of Piston
1. Pump system down to 2 psig and recover refrigerant.
3
⁄8″D. (9.53) TIEDOWN
A
B
DIMENSIONS (IN.)
UNIT BASE
DIMENSIONS
22-1/2 x 22-1/2 3-11/16 18-1/8 14-3/8
30x30 6-1/2 23-1/2 20
TIEDOWN KNOCKOUT LOCATIONS
KNOCKOUTS (2) PLACES
A94199
ABC
Fig. 3—Mounting Unit to Pad
II. 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. 3
to determine base-pan size and knockout-hole location.
Arrange supporting members to adequately support unit and
minimize transmission of vibration to building. Consult local
codes governing rooftop applications.
III. CLEARANCE REQUIREMENTS
When installing, allow sufficient space for airflow, wiring, refrigerant piping, and service. Allow 30-in. clearance to service end of
2. Remove hex nut from piston body. Use backup wrench on
fan coils.
3. Remove and discard factory-installed piston. Be sure Teflon
seal is in place.
4. Reinstall hex nut. Finger tighten nut plus 1/2 turn.
NOTE: If the piston is not removed from the body, TXV will not
function properly.
CAUTION: EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
To prevent damage to the unit, use a brazing shield and
wrap TXV with wet cloth or use heat sink material.
5. Install TXV on indoor coil liquid line. Sweat swivel adapter
to inlet of indoor coil and attach to TXV outlet. Use backup
wrench to avoid damage to tubing or valve. Sweat inlet of
TXV, marked ″IN″ to liquid line. Avoid excessive heat
which could damage valve.
6. Install vapor elbow with equalizer adapter to suction tube of
line set and suction connection to indoor coil. Adapter has
a 1/4-in. male connector for attaching equalizer tube.
7. Connect equalizer tube of TXV to 1/4-in. equalizer fitting
on vapor line adapter.
8. Attach TXV bulb to horizontal section of suction line using
clamps provided. Insulate bulb with field-supplied insulation tape. See Fig. 4 for correct positioning of sensing bulb.
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