CACG/CAHG/CAHJ & CACH/CAHH/CAHK
Air Handlers
• Installation, Operation and Maintenance Manual •
Comfort where it counts
4
P/N 240008108, Rev. G [07/08/10]
Product description
Th
e EMI Cassett e Air handlers are avail-
•
able in three cabinet sizes with four out-
put capacities from 9,000–24,000 Btuh,
and two cooling only capacities from
30,000–36,000 Btuh.
Key features include a condensate pump
•
with safety switch and a 36” (0.9 m) lift
(measured from the base or bott om of
the unit), fresh air inlet and branch duct
knockouts, and motorized air vanes mod-
els 24 and 36 only).
Electric heat is a factory-installed option
•
ONLY (there are no fi eld installed electric
heat kits available). (See NOTICE on
next page.)
The cassette air handler accepts a 24
•
volt thermostat control (thermostat not
included).
Designed for low noise levels, easy instal-
•
lation and maintenance and a slim line
fascia, all ensure minimum intrusion into
the conditioned environment.
Due to ongoing product development, all
•
designs and specifi cations are subject to
change without notice.
These cassette air handlers produce
•
system SEER’s meeting or exceeding 13
when matched with EMI outdoor units:
Single-zone condensing units —
–
S1CG/S1HG 09–24 and S1CG 30–
36.
Dual-zone condensing units —
–
S2CH/S2HH side discharge.
Multi-zone, top discharge condens-
–
ing units — T2CG/T2HG, T3CG/
T3HG, or T4CG/T4HG.
Refer to specifi cations contained in
–
this document.
All EMI air handlers are backed by ECR
•
International Inc and are tested, rated,
and certifi ed in accordance with AHRI
standards 210/240-2008 and UL 1995.
Verify Unit Before Installing
Standard features
CACG/CAHG/CAHJ units
“G” or “J” units require a remote thermo-
•
stat for operation. Th
ey do not include an
onboard controller.
External thermostat required.
•
CACH/CAHH/CAHK units
“H” or “K” units include an on-board
•
microprocessor controller with infrared
remote.
Th
e remote is required to adjust sett ings
•
and confi gure the controller.
Also included is a bank of DIP switches for
•
sett ing operating behavior. Th
ese can be
used to select operation by the on-board
controller or by a remote thermostat.
When operated by remote thermostat, the
•
controller off ers limited options.
Materials of Construction
Galvanized steel cabinet with fi re-resistant
•
thermal and acoustic foam insulation.
Light grey high-impact ABS fascia.
•
Expanded polystyrene drain pan with a
•
tough, fi re-retardant thermoplastic liner.
Air Systems
Fans are backward-cur ved impeller
•
centrifugal design; dynamically and stati-
cally balanced; and mounted on integral
mounting rails.
Single-fan models 9, 12 & 24 are
–
designed with fi re-retardant plastic
or aluminum impellers.
Twin-fan model 36 is designed with
–
fi re-retardant plastic impellers.
Motors are multispeed, enclosed type
–
with thermal protection and sealed
lifetime bearings.
Permanent, washable fi lter (user acces-
•
sible).
Branch duct knockouts on three sides
•
for remote discharge locations (using no
more than two non-adjacent sides).
NOTICE
Check equipment for damage prior
to installation, if damaged contact the
wholesale distributor.