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STATE-OF-THE-ART CONTROL SYSTEM
This self diagnostic control system handles more than just temperature. The ConvertibleAire (2OACH)
has automatic changeover from heating to cooling and cooling to heating. The ArcticAire (2OAC) does
not since it is a cooling only model. The temperature setpoint range is from 55°F to 85°F.
A built-in time delay prevents compressor short cycling.
The built-in 6 speed fan controller decreases the fan speed as the temperature approaches the setpoint.
The LED display will read the return and supply air temperature...as well as setpoint.
MOISTURE MODE
When entering the moisture mode with the select button the fan will start within 1 minute at speed level 3.
The fan will run for 30 minutes sampling the air temperature and storing it into memory. If the ambient
air temperature is above 60°F, the compressor will then start. The compressor will run for a maximum of
one (1) hour, or until there is a 2°F drop in ambient temperature. After the compressor shuts off, the
evaporator fan will continue to run for four (4) more minutes, then turn off. This cycle will start again in
four (4) hours. The right most decimal is lit while the compressor is running. If the unit is properly sized
for the conditioned space, this process should maintain the relative humidity between 50-60%.
FILTERS
The condenser coil filter is 1/4 inch thick washable foam located in the filter grille assembly in the back
of the unit. The evaporator filter is 1/4 inch thick washable foam located in the filter grille assembly in the
front of the unit. To remove filter: (1) lift and pull out the filter grille. (2) pull the filter away from the
velcro attaching strip. (3) wash, and re-install in reverse order. The filter may be reinstalled damp since
the air flow will dry it quickly.
SERVICE CORD
All ArcticAire (2OAC) and ConvertibleAire (2OACH) Series units are equipped with a standard ten (10)
foot long service cord with plug configurations and receptacle requirements as shown in the chart below.
6
UNIT MODEL PLUG CONFIGURATION RECEPTACLE
2OAC12 / 2OACH12
2OAC18 / 2OACH18
115 V
15A-125V
NEMA 5-15P
NEMA 5-15R
2OAC24
2OACH24
208/230 V
20A-250V
NEMA 6-20P
NEMA 6-20R
2OAC36
2OACH36
208/230
30A-250V
NEMA 6-30P
NEMA 6-30R
2OAC60
2OACH60
208/230
50A-250V
NEMA 6-50P
NEMA 6-50R
2OAC6032
2OACH6032
208/230/3
30A-250V
NEMA L14-30P
NEMA L14-30R
2OAC/OACH3634
460 3 PHASE
20A-460 VOLT
NEMA L16-20P
NEMA L16-20R
2OAC/OACH6034
460 3 PHASE
30A-460 VOLT
NEMA L-16-30P
NEMA L16-30R
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