286A / 288A
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 un- necessary turns and bends.
4.Leave some slack between structure and unit to absorb vi- bration.
5.When passing refrigerant tubes through the wall, seal open- ing with RTV or other pliable
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 sur- rounds vapor tube.
9.When necessary, use hanger straps which are 1 in. 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.
When outdoor unit is connected to
IMPORTANT: Maximum
IMPORTANT: Always install the
INSTALLATION
NOTE:Avoid contact between tubing and structure
OUTDOOR WALL INDOOR WALL
CAULK | LIQUID TUBE |
| |
INSULATION | VAPOR TUBE |
| |
THROUGH THE WALL |
|
required unit changes for specific applications and for
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.
For hurricane tie downs, contact distributor for details and PE (Professional Engineer)Certification, if required.
On rooftop applications, mount on level platform or frame. Place unit above a
Roof mounted units exposed to winds above 5 mph may require wind baffles. Consult the Service Manual - Residential Split System Air Conditioners and Heat Pumps Using Puron® Refrigerant for wind baffle construction.
UNIT BASE PAN | TIEDOWN KNOCKOUT LOCATIONS | ||
DIMENSIONS |
| in. (mm) |
|
in. (mm) |
|
|
|
A | B | C | |
(927.1x1016) | (295.3) | (173.0) | (730.3) |
HANGER STRAP (AROUND VAPOR TUBE ONLY)
1” (25.4 mm) MIN.
SUSPENSION
JOIST
INSULATION VAPOR TUBE
LIQUID TUBE
A05242
Fig. 2 - Tiedown Knockout Locations
NOTE: Unit must be level to within ±2° (±3/8 in./ft. / ±9.53 mm/m) per compressor manufacturer specifications.
Clearance Requirements
When installing, allow sufficient space for airflow clearance, wiring, refrigerant piping, and service. Allow 24 in. (610 mm) clearance to service end of unit and 48 in. (1219.2 mm) above unit.
A94028
Fig. 1 - Connecting Tube Installation
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. Consult the Service Manual – Air Conditioners and Heat Pumps Using Puron® Refrigerant to obtain
For proper airflow, a 6 in. (152.4 mm) clearance on 1 side of unit and 12 in. (304.8 mm) on all remaining sides must be maintained. Maintain a distance of 24 in. (609.6 mm) 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. (152.4 mm) above roof surface.
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