STATE-OF-THE-ART CONTROLS
The
AquaCooler
units maintain the desired temperature by setting the 24 volt State-Of-The-Art program-
mable electronic controller. Turn to page 10 for simplified operating instructions.
The thermostat has a setting range from 55° F to 85° F
±
1° F and also has a Celsius readout. A six speed
push-button regulates the evaporator motor if manual control is desired. In automatic mode, fan speed is
automatically reduced as temperature approaches set point. This provides maximum cooling with mini-
mum air flow noise.
The Moisture Mode helps to control relative humidity and minimize compressor operation. A de-icing cy-
cle helps prevent evaporator coil icing. The nonvolatile memory retains program and set points without
batteries.
A three digit display reads “CON” to indicate condensate alert and/or high pressure cut-out.
BUILT-IN CONDENSATE PUMP
Every unit is equipped with a condensate pump designed as an automatic condensate removal pump for
water dripping off the evaporator coil. The pump is capable of pumping against a 20 ft. head and is con-
trolled by a float/switch mechanism which turns the pump “on” when approximately 2 1/2 inches of water
collects in the tank, and automatically switches “off” when the tank drains to a level of approximately
1 1/4 inches. A built-in pump safety switch turns off the air conditioner if the condensate line becomes
plugged or motor/pump failure should occur. An in line check valve is standard. The entire base pan
stays dry.
CONDENSER COIL
The water cooled copper/steel tube-in-tube type condenser coil is designed for a maximum water side
working pressure of 400psi. Optional cupro-nickel condenser coils are available for severe duty and salt-
water/brine applications. Low pressure drop and efficient design (high EER’s) fully utilizes the heat trans-
fer capability of this compact coil.
FILTER
All units are equipped with a 1/4 inch thick, throw away foam air filter located behind the return air grille
that can easily be removed and replaced. Just lift and pull the grille out and remove the filter.
SERVICE CORD
All
AquaCooler
Series units are equipped with the standard ten foot long service cord with plug configu-
rations and receptacle requirements as shown in the chart below.
ELECTRICAL SERVICE PLUG CONFIGURATION
5
UNIT MODEL
PLUG CONFIGURATION
RECEPTACLE
OWC-12-18
115 V
15A-125V
NEMA 5-15P
NEMA 5-15R
OWC24-36
208/230 V
20A-250 V
NEMA 6-20P
NEMA 6-20R
OWC6012
208/230 V
30A-250 V
NEMA-6-30P
NEMA-6-30R
OWC6032
208/230
3 Phase
20A-250 V
NEMA-L15-20P
NEMA-L15-20R
