OCEANAIRE AquaCooler OWC1211 Manual

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PAGE
General Information ................................................ 1-2
Product Data & Specifications ................................................ 3
UNIT DESCRIPTION
Standard Features ................................................ 4-5
Accessories ................................................ 6
Unit Construction ................................................ 7-8
Installation ................................................ 9-10
Parts Replacement Procedure ................................................ 11-12
Troubleshooting Guide ................................................ 13-15
Preventive Maintenance ................................................ 15-16
DIAGRAMS
Piping Schematic ................................................ 17
Wiring Diagram ................................................ 18
Warranty ................................................ 19
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GENERAL DESCRIPTION
Air Conditioners are designed for applications where outside air is not available and spot cooling is
needed. The cord connected AquaCooler Models range from 13,780 BTU/HR to 60,100 BTU/HR floor
mount configuration to satisfy any space requirements. All models are provided with casters for
portability.
These models are thoroughly self-contained with the entire refrigeration system, water valve,
condensate pump, fan motor and electrical components neatly arranged in a platinum texture polyester
powder coated metal cabinet. Only power, condenser water supply and discharge and condensate drain
piping are required for installation.The 24 volt programmable electronic controller, provides the desired
comfort. The high counterflow efficiency design of the water-cooled condenser operation allows proper
amount of water flow to achieve the desired high and low refrigeration system pressures. Condenser
water is regulated by a refrigeration system head pressure actuated water regulating valve.
GENERAL REQUIREMENTS
A MINIMUM WATER PRESSURE OF 20 PSIG IS REQUIRED to actuate the water regulating valve
and allow water to flow into the condenser coil. The condenser water temperature leaving the unit
should not exceed 112° F. Ignoring this compliance will void the warranty on the refrigeration system.
IMPORTANT AquaCooler Air Conditioners are designed and engineered for the comfort of the
end user. The length of service received can be extended by following the installation and preventive
maintenance instructions. It is important that the warranty card be filled out completely and returned to
the factory within fourteen (14) days of installation of the unit in order to receive the benefits of the
warranty.
UNIT MODEL CAPACITIES
12780 BTU/HR COOLING
18840 BTU/HR COOLING
23950 BTU/HR COOLING
36100 BTU/HR COOLING
60,300 BTU/HR COOLING
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NOMENCLATURE
OWC 24 1 2
OCEANAIRE VOLTAGE
WATER-COOLED SINGLE PHASE
CAPACITY SELECTION
CAPACITY SELECTION
NUMBER CODE 12..........13780 BTU/HR
18..........18840 BTU/HR
24..........23950 BTU/HR
36..........36100 BTU/HR
60..........60100 BTU/HR
2
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Feb 20, 2001
MODEL OWC1211 OWC1811 OWC2412 OWC3612 OWC3632 OWC6012 OWC6032
Nominal Cooling Capacity1 13,780 18,840 23,950 36,100 36,100 60,100 60,100
Voltage 208/230/3 208/230/1 208/230/3
Cooling Amps510.5/5.3 12.0/6.2 8.6 13.0 9.4 20.7 14.8
Cooling Watts5 1050 1400 1990 3000 3000 5350 5350
E.E.R. 13.1 13.5 12.3 12.0 12.0 11.3 11.3
In Rush Current (AMPS) 79 92.6 64.6 109.6 103.4 183.1 134.2
Fuse/Breaker (AMPS) 15 15 20 20 20 30 20
Plug Type 5-15P 5-15P 6-20P 6-20P L15-20P 6-30P L15-20P
Compressor HP 1 1 1/2 2 3 3 5 5
Compressor RLA 9.3 11.4 8.3 17.9 11.4 28.0 20.0
Compressor LRA 58 65 49 88 77 169 123
Evaporator CFM2 400 600 810 1310 1310 2200 2200
Evap Motor HP 1/15 1/5 1/3 1/2 1/2 1 1
Evap Motor Watts 200 210 350 375 375 550 550
Condenser Water Flow at 60°F inlet GPM 0.75 1.10 1.55 2.20 2.20 5.50 5.50
at 85°F inlet 3.0 4.5 6.0 9.0 9.0 15.0 15.0
Condenser Coil Pressure Drop-PSI .40 .40 .20 .40 .40 .40 .40
Water Valve Pressure Drop-PSI
Water Valve Connection4
Drain Connection
Condensate Pump Head (Standard)
Sound Level3 52 57 60 62 62 69 69
R-22 Charge Oz. 19 22 24 36 36
(A) Height with Casters 31 1/2
(D) Height without Casters 28 1/2
(B) Width 20 1/8
(C) Depth 13 1/8
Net Weight 120 165 170 225 225 350 350
Shipping Weight 125 175 180 235 235 385 385
Shipping Volume 9 18 18 21 21 36 36
208/230/60/1
20 Feet
1Nominal Capacity is net BTU/HR at 80°F DB/67°F WB return air or 85°F EWT to 95°F LWT (#GPM/Ton). 2CFM with free discharge. 3Sound Pressure, dB at 5 feet Com. Config.
Specifications subject to change without notice.
115/60/1 or 208/230/60/1
3/8 MF
2.0
4Size 3/8 valve used on model 12, 18, 24 (3/8 MF Fitting) 5/8 valve used on models 36 and 60 (5/8 MF fitting)
5Amps & Watts at 208 volts
3/8 MF 5/8 MF
68
37 1/2 47 52 1/4
34 1/2 42 1/2 46 1/2
28 1/4
13 15 1/2 39
24 1/4
Specifications
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STANDARD FEATURES
SERVICEABILITY
All AquaCooler Series units are designed with removable panels to provide full service accessibility.
Turn to page 11 “Part Replacement Procedure” for removal of the correct panel when replacing a part.
AUTOMATIC WATER VALVE
All units are equipped with a direct-acting, refrigeration system head pressure actuated water regulating
valve. This valve, factory set for 94° - 100° leaving water temperature (LWT), flows only the amount of
water required to achieve the desired refrigeration system operating pressure. Units used for closed loop
operation may be ordered without the water valve. If, however, the temperature of the return water is
questionable in a closed loop, the water valve may be helpful and left in the system with little pressure
drop.
ATTRACTIVE CABINET
The AquaCooler Series cabinet is constructed of 18 gauge galvanized steel with a platinum texture poly-
ester powder coated finish that will compliment any decor. The entire cabinet is insulated with a sound
absorbent insulation for cool, quiet comfort. The base pan is 14 gauge galvanized steel and remains dry
and free from odor and fungal growth.
HIGH PRESSURE SAFETY SWITCH
All units incorporate a manual re-set high pressure switch for maximum protection of the refrigeration
system and compressor. The cut-out pressure setting is 375 ± 5 PSIG for all models except OWC36
which uses 425± 5 PSIG. If the pressure exceeds this setting, the compressor stops and can be re-started
by depressing the “RESET” button located on the back panel of the unit. The high pressure control’s cap-
illary line is attached to a schrader valve. This allows replacement of a defective control without recover-
ing the refrigerant.
4
High Pressure Switch Re-
set Button
Water Cooled Condenser
Power Cord
Caster
Compressor
Electrical Box
Control Board
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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
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OPTIONAL FEATURES
HOSE KIT
10, 25, and 40 foot hose kits with flare connectors to match fittings on units, banded 3-in-one design for
easy and convenient installation, are available. When using these hoses in applications with water pres-
sures exceeding 50 PSIG, a water pressure reducing valve must be installed in the water supply line prior
to the hose kit; otherwise warranty on the hose kits will be void. The water out and condensate of the
three-section flexible plastic hose can be fed to a sink or permanent drain. When using a hose kit, avoid
sharp corners, hot water pipes and kinking to assure proper water flow of the supply and return lines.
HIGH PRESSURE WATER VALVE
High pressure water regulating valves, designed for use with up to 350 PSI water inlet pressure, are avail-
able.
CUPRO-NICKEL CONDENSER
When chemically treated water, salt water or brine is used in the condenser coil, it is recommended that
the air conditioner be equipped with a 90/10 Naval Spec. Cupro/Nickel condenser.
TREATED EVAPORATOR COIL
When airborne contaminants are a problem for air conditioning applications, acrylic coated evaporator
coils are recommended to guard against pitting or corroding.
6
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UNIT CONSTRUCTION
7
CONTROLLER
EVAPORATOR FAN MOTOR
EVAPORATOR COIL
FAN MOTOR CAPACITOR
EVAPORATOR DRAIN PAN
COMPRESSOR
CONDENSATE PUMP
ELECTRICAL PANEL
CASTERS
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INSTALLATION INSTRUCTIONS
ELECTRICAL REQUIREMENTS
Adhere to the data plate on the back of the unit and make certain that the proper power is used. Refer to
the "Specifications" section for voltage and fuse requirements. Make sure that proper wall outlets and re-
ceptacles are used as described in "Standard Features" section of this manual. Operating the unit on im-
proper voltage will void the warranty. CAUTION: the use of an extension cord rated at least:
15 Amps @ 115 volts for OWC12 and OWC18 20 Amps @ 250 volts for OWC3612
15 Amps @ 250 volts for OWC 12-24 30 Amps @ 250 volts for OWC6012
and with grounding-type attachment plug and grounding-type connector (load fitting) may be used.
WATER FITTING LOCATION
Check the exact location of the water fittings on the unit back panel before placing the air conditioner in
the desired position. Water lines should be securely attached to the proper connections.
8
1"
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