4
INSTALLATION
Step 1 — Complete Pre-Installation Checks
Examine unit for damage incurred during shipment. File claim im
-
mediately with transit company if damage is found. Check the
shipment for completeness. Verify that the nameplate electrical re
-
quirements match the available power supply.
Step 2 — Rig and Place Unit
Units are mounted on skids. Leave the unit on the skid until it is in
the final position. While on the skid, the unit can be rolled,
dragged or forklifted;
do not apply force to the unit.
Use a
minimum of 3 rollers when rolling, and raise from above to
remove the skid when unit is in the final position. See Fig. 3 for
rigging details.
Fig. 3 —
Rigging Details
PLACING THE UNIT
The selected unit location should not be adjacent to an acoustically
sensitive space. The best locations for these units are mechanical
rooms, near elevator shafts, near restrooms, near stairwells or oth
-
er similar locations. Position the unit where large supply of out
-
door air is available for the unit inlet. Be sure to leave enough
space for the return air inlet access and access for cleaning and
maintenance. Units located on the same floor should have a mini
-
mum of 6 ft of clearance between condenser air openings. Units
located floor-to-floor should have a minimum of 10 ft between
units to prevent recirculation of conditioned air. DO NOT locate
units where they will recirculate conditioned air. This will cause
increased head pressure which can cause units to trip on high pres
-
sure. See Fig. 4 for recommended unit clearances.
Fig. 4 —
Unit Clearances
Either provide inlet filters to protect the coils, or locate the unit in
an area free from airborne dirt or other foreign material which
could clog the coils.
The units are designed to pass through most 36-in. door openings.
POSITIONING THE 09XC UNIT
Refer to Fig. 4 for typical service clearances. To suspend the unit,
use 4, field-supplied,
1
⁄
2
-in. diameter (or larger) threaded rods.
Mount 2 heavy channels under the entire width of the unit, allow
-
ing them to protrude beyond the width of the unit so that support
-
ing rods can be installed on the channel ends. Attach minimum
1
⁄
2
-
in. threaded supporting rods (field-supplied) to channels through a
rubber or spring isolator. See Fig. 5.
DO NOT use rods smaller than
1
⁄
2
-in. diameter. Smaller rods may
not be strong enough to support the unit. Rods must be securely
anchored in ceiling joists.
Use a double hex nut when attaching hanger rods to brackets. A
single nut could loosen from vibration of the unit.
Before sliding unit into final position, check for clearance to ac
-
cess panels and service area to install piping.
Fig. 5 —
Threaded Rod Installed in Bracket
Step 3 — Complete Refrigerant Piping
GENERAL
All field leak and pressure testing should be done in accordance
with local code requirements. If a local code does not exist, use
ASHRAE (American Society of Heating, Refrigerating and Air-
Conditioning Engineers) Standard 15, Safety Code for Mechani
-
cal Refrigeration.
For leak testing procedures, refer to the Carrier ‘‘Refrigerant Ser
-
vice Techniques’’ book, Form SFT-01.
SPREADER BAR
SUPPORTS
UNDER PALLET
NOTE: Dimensions are in inches.
24 (TYP)
36
36
09XC
UNIT
BRACKET*
DOUBLE HEX NUT*
FIELD SUPPLIED
WASHER*
RUBBER
ISOLATOR*
PROTRUDING
CHANNEL END*
1/2" THREADED
ROD*
*Field supplied.
