Carrier 38EYX Instructions D'installation page 2

IMPORTANT: Maximum liquid-line size is 3/8-in. (9.5 mm)
O.D. for all residential applications including long line.
IMPORTANT: Always install the factory-supplied Puron® heat
pump (bi-flow) liquid-line filter drier. If replacing the filter drier,
refer to Product Data Digest for appropriate part number. Obtain
replacement filter driers from your distributor or branch.
NOTE: Avoid contact between tubing and structure
OUTDOOR WALL
CAULK
INSULATION
THROUGH THE WALL
HANGER STRAP
(AROUND VAPOR
TUBE ONLY)
1" MIN.
(25 mm)
SUSPENSION
Fig. 2—Connecting Tubing Installation
INSTALLATION
IMPORTANT: Specifications for this unit in residential new
construction market require using the outdoor unit, indoor unit,
refrigerant tubing sets, metering device, and filter drier listed in
presale literature. There can be no deviation. Consult the Appli-
cation Guideline and Service Manual for Residential Split-System
Air Conditioners and Heat Pumps using Puron® Refrigerant to
obtain required unit changes for specific applications and for R-22
retrofit.
Step 1—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.
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. Place
unit above a load-bearing wall and isolate unit and tubing set from
All manuals and user guides at all-guides.com
INDOOR WALL
LIQUID TUBE
VAPOR TUBE
JOIST
INSULATION
VAPOR TUBE
LIQUID TUBE
A03169
A
DIMENSIONS (cm)
MINIMUM
UNIT
MOUNTING PAD
SIZE
DIMENSIONS
024 57 X 57
036–060 76 X 76
Fig. 3—Mounting Unit to Pad
structure. Arrange supporting members to adequately support unit
and minimize transmission of vibration to building. Consult local
codes governing rooftop applications.
Do not allow POE lubricant to come into contact with roofing
material. POE may deteriorate certain types of synthetic
roofing.
Roof mounted units exposed to winds above 5 mph (8km/h) may
require wind baffles. Consult the Application Guideline and
Service Manual for Residential Split-System Air Conditioners and
Heat Pumps using Puron® Refrigerant for wind baffle construc-
tion.
NOTE: Unit must be level to within ±2° (±31 mm/m) per
compressor manufacturer specifications.
Step 3—Clearance Requirements
When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 76 cm clearance to
service end of unit and 122 cm above unit. For proper airflow, a
15 cm clearance on 1 side of unit and 30.5 cm on all remaining
sides must be maintained. Maintain a distance of 61cm between
units. Position so water, snow, or ice from roof or eaves cannot fall
directly on unit.
On rooftop applications, locate unit at least 15 cm above roof
surface.
Step 4—Operating Ambient
The minimum outdoor operating ambient in cooling mode without
additional accessories is 13°C, and the maximum outdoor operat-
ing ambient in cooling mode is 52°C. The maximum outdoor
operating ambient in heating mode is 19°C.
2
C
"D. (9.53) TIEDOWN
3
⁄
8
KNOCKOUTS (2) PLACES
B
TIEDOWN KNOCKOUT
LOCATIONS
A B
9.4 46
16.5 59.7
A94199
C
36.5
50.8