CACG/CAHG & CACH/CAHH
Air Handlers
• Installation, Operation and Maintenance Manual •
P/N 240008108, Rev. B [082509]
5
Verify Unit Before Installing
(continued)
Four plastic air vanes, motor driven with
•
auto sweep or fixed position stop setting
on models 24 and 36. Models 9–12 are
equipped with manually-adjusted air
vanes.
Coil
Coil is seamless, copper tubing, arranged
•
in staggered configuration, with enhanced
aluminum fins, tested to 600 psig.
The tubes are mechanically expanded for
•
secure bonding to fin shoulder.
Refrigeration Circuit
Units are equipped with a serviceable
•
fixed orifice expansion device and use
R410A refrigerant only.
Controls and Components
(factory installed or supplied)
Connections for 24V remote thermo-
•
stat.
Custom control board featuring program-
•
mability, configuration, and multiple
modes of operation. (CACH/CAHH
only)
Controls also feature anti-short-cycle
•
timer, post purge fan relay, and an on-
board 30-amp electric heat relay.
Condensate pump with 36” (0.9 m) lift
•
(measured from base of unit).
24V Transformer.
•
System options
24V remote thermostat.
•
Electric Heat (@ 230V)
•
1.5 kW — models 9–12
–
3 kW — model 24
–
5 kW — model 36.
–
Heat pump applications
NOTICE
Electric heat option — EMI heat pumps
are intended to operate with an indoor
air handler, with electric heat. If an in-
door air handler without electric heat is
matched with a heat pump condenser,
the system will deliver cold air during
defrost.