background image

Water Valve 

WATER VALVE ADJUSTMENT 

15 

Water Valve Cover Plate 

Each OCEANAIRE WATER-COOLED unit is equipped with an automatic water  

regulating valve to control the condenser water flow rate. The water valve will open 

when the unit is in the cooling mode and adjust the gallon per minute flow rate 

based on the entering water temperature (EWT). 

 

The water valve operates independently from the water system, and regulates flow 

based on the systems refrigerant head pressure. 

 

Under certain conditions, entering water temperatures can cause the valve to  

rapidly open and close, causing a “harmonic” pitch in the water supply line. In these 

cases, it is recommended that the water valve be adjusted.  

1. 

Disconnect the unit power. 

2.  Remove water valve cover plate or back panel (depending on model) to  

 

locate the water valve. 

3.  At the top of the valve, there is a square shaped adjustment screw. Using a 

standard service wrench or flat blade screwdriver, adjust the valve using 

quarter turns, allowing the unit to operate approximately 5 minutes after 

each new setting.  

 CLOCKWISE (CW) to lower the system head pressure  opening point. 

• 

COUNTER-CLOCKWISE (CCW) to raise the system head pressure opening 
point. 

4.  Re-install cover plate (or back panel) when finished. 

Summary of Contents for Deluxe OWC2412QC

Page 1: ...ENGINEERING INSTALLATION AND SERVICE MANUAL OWC2412QC 2 Ton Deluxe Portable Water Cooled Spot Cooler with Quick Connect EISM OWC2412QC 01012022 ...

Page 2: ...s NOTICE In our ongoing process of continuous improvement the items and procedures described in this manual are subject to change without notice Please note model and serial number of the OWC2412QC unit when contacting the factory TABLE OF CONTENTS PAGE GENERAL INFORMATION 1 PRODUCT DATA AND SPECIFICATIONS 2 UNIT DESCRIPTION Standard Features 3 Applications Electrical Configuration 4 Unit Interior...

Page 3: ...cted to the proper source of electrical power the OWC2412QC is controlled by a solid state electronic device with numerous options of temperature and airflow controls that will provide the desired level of comfort and cooling A wide variety of accessories and factory installed options are available for the OWC2412QC allowing for improved performance and versatility 1 NOMENCLATURE O WC 24 1 2 QC DE...

Page 4: ...AUTOMATIC LIFT VERTICAL 20 FT REFRIGERANT 16 oz R 410A HEIGHT 45 7 in WIDTH 21 5 in DEPTH 16 0 in NET WEIGHT 170 lb SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Cooling capacity is total BTUH at 80ºDB 67ºWB return air High fan speed with 85ºEWT to 95ºLWT 6 0 GPM Time delay fuses circuit breakers are recommended EER is determined at High fan speed CFM with free discharge Amps and Watts at 230 vo...

Page 5: ... unit comes equipped with an Automatic Condensate Pump that removes the condensate The pump discharges through a check valve located on top of the conden sate pump assembly The vinyl tubing exits through a 3 8 flare connection located in the recessed area on the right side of the unit The pump has capabilities up to a 20 lift to han dle almost any installation requirement If a failure occurs with ...

Page 6: ... is directed where it is needed A nozzle kit can be used to improve the velocity ROOM AIR CONDITIONER One feature of the OWC2412QC is it operates as a room air conditioner because water is used as the means for heat rejection The major advantage of water cooled air conditioning is the convenience of connecting water hoses or lines as compared to the installation of condenser air ducts used for air...

Page 7: ...ERIOR Cubby for the Hose Kit High Pressure Switch Reset Button Drai Water In Electrical Cord Strain Relief Water Out Condensate Pump Access Door Condensate Pump Motor Thermostat Compressor Evaporator Coil Blower Wheel ...

Page 8: ...d on the back of the unit to confirm the proper power is available for the unit Refer to Specifications section for voltage and amperage requirements For the proper NEMA receptacle refer to Electrical service plug configuration When using an extension cord use the proper gauge cord and check cord voltage at the unit TIME DELAY FUSES CIRCUIT BREAKERS ARE RECOMMENDED WARNING OPERATING THE UNIT ON IM...

Page 9: ...de edge guards By removing the OWC2412QC discharge grille the noz zle kit can then be installed in the grille opening Evaporator return air plenum is available for installations where it is required to duct the return air to the inlet of the evaporator The evaporator return air plenum allows the user to connect round duct flexible or rigid to the return air intake to reduce air noise and increase ...

Page 10: ...placed in the grille opening 2DDA 10 for OWC2412QC converts the evaporator discharge to a 10 inch diameter round duct When used in conjunction with the evaporator return air ple num 2DEP 12 the unit can provide closed loop cooling to and from a given space without the influence of any outside air NOTE When a 2DDA 10 is installed it is recommended to set the evaporator blower speed to high to avoid...

Page 11: ...lanyard is supplied with each QC Coupling When engaged this device releases the internal valve of the coupling allowing for air to break the vacuum and drain the hose All Hose Kits come with a 4 Way Sink Adapter Fitting SINK ADAPTER FEATURE WATER IN HOSE WATER OUT HOSE CONDENSATE HOSE Material PVC with Polyester Braid Gray PVC ID Wall Thickness 3 8 ID 0 219 Wall 1 4 ID 0 063 Wall UNIT SIDE FITTING...

Page 12: ... in drain allowing for free drain conditions with an air space around the opening 4 Install DRAIN line in drain allowing for free drain conditions 5 Open water supply valve and check for any water leaks in hose connections To release the coupling Hold the Coupling as shown below and pull back on the sleeve The Coupling will release and the valve inside of the coupling seal Once off site use the fi...

Page 13: ... desired The HA SMQC Hose Adapter is equipped with Quick Connect Couplings along with the Garden Hose Connections as shown below HA SMQC HOSE ADAPTER KIT FEATURE WATER IN HOSE WATER OUT HOSE CONDENSATE HOSE Material PVC with Polyester Braid Gray PVC UNIT SIDE FITTINGS TERMINATION FITTINGS HOSE KIT PART NO For Use with WATER IN WATER OUT DRAIN LENGTH WATER SUPPLY WATER OUT DRAIN HA SMQC OWC2412QC 3...

Page 14: ... room temperature drops 2 which ever comes first This cycle repeats every four hours FAN SPEED The operator can select between AUTO or MANUAL fan speed con trol Pressing the FAN SPEED button will switch speed from AUTO to MANUAL In MANUAL mode pressing the FAN SPEED button will change fan speed from low 1 to high 6 In AUTO mode the fan speed is controlled automatically In cooling mode the controll...

Page 15: ... Temperature Sensor Calibration 10 P10 Temperature Display F or C P13 Supply Fan Operation Cycling or Continuous P1 P2 To adjust fan speed settings P1 represents the high fan speed parameter while P2 represents the low fan speed parameter When using nozzle kits discharge duct adapters and evaporator plenums setting P1 to 85 will help to avoid freeze ups P4 Adjust the P4 setting to match the actual...

Page 16: ...2 hours 6 Add the 2 number sets together to get total hours 03 and 486 3486 hours 01 and 59 1059 hours TOTAL HOURS REPRESENTS COMPRESSOR RUN TIME MODEL CODE SETTINGS OWC2412QC P1 70 P2 50 OWC2412QC PROGRAM SETTINGS NOTICE Program Parameters are NOT controller default values They are Oceanaire Factory Settings DISPLAY FAULTS LAC Low AC line power AAA or Failed Air Sensor unit will not run CON Faile...

Page 17: ...ratures can cause the valve to rapidly open and close causing a harmonic pitch in the water supply line In these cases it is recommended that the water valve be adjusted 1 Disconnect the unit power 2 Remove water valve cover plate or back panel depending on model to locate the water valve 3 At the top of the valve there is a square shaped adjustment screw Using a standard service wrench or flat bl...

Page 18: ...ew controller and secure in place C POWER MODULE To remove the power module remove the rear control box cover Disconnect wires one at a time and re attach each wire while holding replacement module in other hand Once all wires have been reconnected in accordance with the wiring diagram install new power module D CONDENSATE PUMP 1 Remove condensate pump access panel 2 Remove brackets securing conde...

Page 19: ... NOT START CAUSE Thermostat set point is too high REMEDY Make sure set point is lower than room temperature Look for a red dot to the right of the temperature displayed for cooling Note there is a time delay for the compressor CAUSE Thermostat Loose display cable REMEDY Examine the thermostat for a loose cable connection Re seat the display cable from thermostat to power module CAUSE Condensate Al...

Page 20: ...g pump follow these steps 1 Make certain that the unit is disconnected from the power source before attempting to service or remove any component 2 Be sure the floats move freely Clean as necessary 3 Remove the pump assembly and check for obstructions Clean as needed 4 Clean the reservoir with warm water and mild soap when mineral deposits are visible 5 Check the inlet and outlet piping Clean as n...

Page 21: ...PIPING SCHEMATIC 19 ...

Page 22: ...WIRING SCHEMATIC FOR OWC2412QC 20 ...

Page 23: ...tten instructions or has been altered or modified in any way b Product that has been subjected to any abnormal power conditions such as loss of power power surges voltage irregularities such as brown outs or phase loss on three phase equipment c any expenses including labor or material incurred during removal or reinstallation of the Product d any workmanship of the installer of the Product This l...

Page 24: ...____________________________ Purchased from _______________________________ Date Installed _________________________________ For Technical Support or service parts contact our Keep Cool Team at 847 583 0311 In order to receive the benefits of our warranty please register on line at www oceanaire inc com EISM OWC2412QC 01012022 ...

Reviews: