CAC CASSETTE CHASSIS POSITIONING AND INSTALLATION
ELECTROMECHANICAL
THERMOSTAT
An optional thermostat can be obtained through EMI or your local distributor. In addition to positioning the Cassette cor- rectly, it is very important to locate the wall mounted thermostat in the optimum posi- tion to ensure good temperature control. Therefore the installation should be se- lected with the following points in mind:
1.Position the thermostat approximately 5 ft. above floor level.
2.Avoid external walls and drafts from windows and doors.
3.Avoid positioning near shelves and cur- tains as these restrict air movement.
4.Avoid heat sources (direct sunlight, heaters, dimmer switches, etc.)
5.Seal wiring holes in the wall behind the thermostat to avoid drafts.
MOUNTING THE CAC CASSETTE
CEILING EVAPORATOR
Ceiling opening:
•(In existing construction) Remove enough ceiling panels to provide clearance space for mounting unit to ceiling joists.
•Before beginning the installation, inspect the unit location, test the strength of the ceiling joists to insure they will support the weight of the unit.
•Determine mounting method:
-On wooden beams use threaded rods, washers, and nuts to suspend support brackets.
-With metal structures, secure thread- ed rods on an existing angle or install a new support angle.
-On newly built concrete slabs secure threaded rods with inserts and em- bedded bolts.
An opening in the false ceiling will have to be cut to the following sizes:
Small cabinet 23¼” x 23¼” Medium cabinet 33⅞” x 33⅞” Large cabinet 46 x 33⅞”
Figure #2
Cabinet | A | B |
Small | 19½” | 23” |
Medium | 29⅝” | 31½” |
Large | 29⅝” | 4311⁄16” |
A template for ceiling
1.500 TYP
2.000 X 45° TYP
Rod
PositionsRod 
Positions
NOTE: Make sure the ceiling grid is supported separately from the Cas- sette. The ceiling must not be sup- ported by any part of the Cassette unit, fascia or any associated wiring or pipe work.
-For previously built concrete slabs install hanging bolts with an expansion anchor.
-Follow local building codes for required safety cables, braces, etc.
1.Use the template (provided) to cut the ceiling opening and determining the rod positions.
CAC Cassette Evaporator | 7 | www.enviromaster.com |