Installation guide

NOTE: Avoid contactbetween tubing and structure
OUTDOORWALL--k ,NDOORWALtz
(_ LIQUID TUBE_CAULK
J_'_ _ VAPOR TUBE
SULATION -_"
THROUGH THE WALL
HANGER STRAP'_ J_"-JOIST
(AROUND VAPOR %= --
TUBE ONLY) _,' \ /_ INSULATION
I1 tl
_--- LIQUID TUBE
SUSPENSION
A94028
Fig. 2---Connecting Tubing Installation
3/8 IN.DIA TIEDOWN "_
KNOCKOUTS IN BASEPAN
(2) PLACES
? -- &-
2/-% .........
--8 3/16"
A97548
Dimensions (In.)
MINIMUM MOUNTING
PAD DIMENSIONS
Support Snow
Feet Stand
20 X 27 24 X 28
26 X 32 31 X 35
TIEDOWN KNOCKOUT
UNIT LOCATIONS
SIZE
A B
018, 024 4-1/8 7-1/8
030-060 5-1/16 9-11/16
Fig. 3_Mounting Unit to Pad
Step5---Elevate Unit
---) Step 2--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.
On rooftop applications, mount on level platform or frame 6 in.
above roof surface. 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 above 5 mph may require
wind baffles to achieve adequate defrost. Consult Low-Ambient
Guideline for wind baffle construction.
NOTE: Unit must be level to within _+ 2° (_+ 3/8 in./ft) per
compressor manufacturer specifications.
Step 3_Clearance Requirements
When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 30-in. clearance to
service end of 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 root" or eaves cannot fall
directly on unit.
On rooI_Lop applications, locate unit at least 6 in. above roof
surface.
Step 4_Operating Ambients
The minimum outdoor operating ambient in cooling mode is 55°F,
and the maximum outdoor operating ambient in cooling mode is
125°F. The maximum outdoor operating ambient in heating mode
is 66°F.
eqmpment damage.
Elevate unit per local climate and code requirements to provide
clearance above estimated snowfall level and ensure adequate
drainage of unit. Fig. 4 shows unit with accessory support feet
installed. Use accessory snow stand in areas where prolonged
freezing temperatures are encountered. Refer to separate Installa-
tion Instructions packaged with accessories.
Fig. 4---Accessory Support Feet
A98534
_) Step 6_Check Indoor and Outdoor AccuRater_ Piston
Check indoor coil piston to see if it matches the required piston
shown on outdoor unit rating plate. If it dees not match, replace
2