Installation - Allied Air 4SCU14LE SERIES Installation And Maintenance Instructions Manual

INSTALLATION

General
Read this entire instruction manual, as well as the
instructions supplied in separate equipment, before
starting the installation. Observe and follow all warnings,
cautions, instructional labels, and tags. Failure to
comply with these instructions could result in an unsafe
condition and/or premature component failure.
These instructions are intended as a general guide only for
use by qualified personnel and do not supersede any national
or local codes in any way. The installation must comply with
all provincial, state, and local codes as well as the National
Electrical Code (U.S.) or Canadian Electrical Code (Canada).
Compliance should be determined prior to installation.
4SCU14LE condensing units use R410A which is an ozone-
friendly HFC refrigerant. The unit must be installed with a
matching indoor coil and line set. 4SCU14LE units are
designed for use in expansion valve (TXV) systems only.
The TXV expansion valve must be ordered separately from
the manufacturer. A filter drier approved for use with 410A is
installed in the unit.
When servicing or repairing HVAC components, ensure the
fasteners are appropriately tightened. Table 1 shows torque
values for fasteners.
Torque Table
Fastener
Stem Caps
Service Port Caps
Sheet Metal Screws
#8 Machine Screws
#10 Machine Screws
Compressor Bolts
Inspection of Shipment
Upon receipt of equipment, carefully inspect it for possible
shipping damage. If damage is found, it should be noted on
the carrier's freight bill. Take special care to examine the
unit inside the carton if the carton is damaged. Any concealed
damage discovered should be reported to the last carrier
immediately, preferably in writing, and should include a
request for inspection by the carrier's agent.
Page 2 of 20
Torque
8 ft. lbs.
8 ft. lbs.
16 in. lbs.
16 in. lbs.
28 in. lbs.
90 in. lbs.
Table 1
If any damages are discovered and reported to the carrier
DO NOT INSTALL THE UNIT, as claim may be denied.
Check the unit rating plate to confirm specifications
are as ordered.
Location of Unit
Refer to Figure 1 for installation clearances.
Installation Clearances
36 * "
* A service clearance of 30" must be maintained on
one of the sides adjacent to the control box.
Clearance to one of the other three sides must be
36". Clearance to one of the remaining two sides
may be 12" and the final side may be 6".
A clearance of 24" must be maintained between units.
48" clearance required on top of unit. Maximum soffit
overhang is 36".
Slab Mounting
When installing unit at grade level, install on level slab high
enough so that water from higher ground will not collect
around unit (see Figure 2).
Roof Mounting
Install unit at a minimum of 4" above surface of the roof.
Care must be taken to ensure weight of unit is properly
distributed over roof joists and rafters. Either redwood or
steel supports are recommended.
Electrical Wiring
All field wiring must be done in accordance with the National
Electrical Code (NEC) recommendations, Canadian
Electrical Code (CEC) and CSA Standards, or local codes,
where applicable.
Issue 1015
36"
36"
36 * "
Figure 1
506251-01