2
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.
Puron
R
refrigerant systems operate at higher pressures than
standard R--22 systems.
Do not use R--22 service
equipment or components on Puron 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. Consult the Application Guideline and
Service Manual – Air Conditioners and Heat Pumps Using Puron
r
Refrigerant to obtain required unit changes for specific applications
and for R--22 retrofit.
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.
This unit employs one louver spacer on each of the four sides to
prevent louver movement during operation. The louver spacers are
trapped between the coil surface and louver at the approximate
center of each side (See Fig. 2). This louver spacer should be
present and, if dislodged during shipment, must be reinstalled
before unit is placed into operation.
A11380
Fig. 2 -- Louver Spacer Location
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.
For hurricane tie downs -- contact your local distributor for details
and PE (Professional Certification), if required by local authorities.
On rooftop applications, mount on level platform or frame. Place
unit above a load--bearing wall and isolate unit and tubing set from
structure. Arrange supporting members to adequately support unit
and minimize transmission of vibration to building. Consult local
codes governing rooftop applications.
Roof mounted units exposed to winds may require wind baffles.
Consult the Application Guideline and Service Manual --
Residential Split System Air Conditioners and Heat Pumps Using
Puron
r
Refrigerant for wind baffle construction.
NOTE
: Unit must be level to within
±
2
_
(
±
3/8 in./ft..) per
compressor manufacturer specifications.
Clearance Requirements
When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 30 in. (762 mm)
clearance to service end of unit and 48 in. (1219.2 mm) above unit.
For proper airflow, a 6 in. (152.4 mm) clearance on one 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.
3/8---in. (9.53 mm) Dia.
Tiedown Knockouts in
Basepan(2) Places
View From Top
UNIT BASE PAN
Dimension
TIEDOWN KNOCKOUT LOCATIONS in. (mm)
A
B
C
31–1/2 X 31–1/2
9–1/8 (231.8)
6–9/16 (166.7) 24–11/16 (627.1)
35 X 35
9–1/8 (231.8)
6–9/16 (166.7)
28–7/16 (722.3)
A05177
Fig. 3 -- Tiedown Knockout Locations
On rooftop applications, locate unit at least 6 in. (152.4 mm) above
roof surface.
Operating Ambient
The minimum outdoor operating ambient in cooling mode is 55
°
F
(12.78
_
C) without low ambient cooling enabled, and the
maximum outdoor operating ambient in cooling mode is 125
°
F
(51.67
_
C).
24AN
B
6
