Industrial Water Cooled Portables

(From 1.5 to 30 ton capacity) These industrial units need a water source and a drain to facilitate the removal of heat energy from the space being cooled. « Back to Hook It Up

Placement

1. Position the unit in the space to be cooled and in the location it will most effectively distribute cooled air. Ensure that the duct has the shortest and most direct route possible.

2. The unit must be sitting completely level and the wheels must be in the locked position.

3. Minimum clearances are 24" from all sides and at least 72" overhead to allow for proper air flow and heat dissipation from the unit.

Electrical

4. Have a licenced electrician hook up the proper cable and breaker combination to electrically power the unit.
   
   
5. All of these industrial units are equipment with movie industry cam-lok connectors. If your application does not include cam-lok power, then you will need our junction box which allows for easy connection between standard cable and cam-lok cord ends.
   
   
6. Some of these large units are equipped to run on a wired remote control system. Connect the proper end of the remote cable to the remote port on the unit. Run the other end of the remote cable to the desired control location and plug the opposite end of the remote cable into the push-button controller unit.
   
   
7. All three phase units are equipped with phase monitors that will not allow the equipment to start if the phasing is wrong. If you have confirmed power to the machine and it is not starting, then incorrect phasing is probably the reason. Simply have the electrician switch any two of the power lines and restart.

Setup - Duct

8. Run the supply air duct from the supply air fitting on the unit to where the cold air is required to be introduced. Make this run (in the case of the larger units with two air supply outlets it will be two runs) as short and as direct as possible. Avoid bunching the duct at the start or end of a run. Use the band clamp on the supply air fitting to secure the duct at the machine end and use the custom Velcro tabs to secure to any custom fitting along the runoff of the duct. Make sure that the first length of duct is attached to the machine so that the end of the duct with the Velcro “hooks” is attached to the fitting. The second piece of duct will therefore be attached to the outside of the first piece, making sure that the supply air duct always feeds inside the second and successive lengths of duct, especially where the duct does not have any Velcro strips to match up.
   
   
9. The Return Air, or air that the unit will be cooling and delivering down the flexible duct, will be taken from the air around where the unit is sitting. This air is sucked into the machine through the filter that is evident on one side of the unit. Remember that this air will be introduced into the space being cooled so it must not contain pollutants such as car or truck exhaust, paint fumes, smoke etc.

Setup - Supply Water (Water In) and Water Return (Water Out)

10. Determine the best route for the both the Supply Water and the Return Water from the water and drain source, usually a fire hydrant or large source of water, to the unit and then run the proper length of Supply, Return and Condensate hose. We will provide you with the 3/8” CLEAR condensate tubing in the appropriate length as well.
    
    1.5 ton to 10 ton units- 3/4” individual high pressure hoses along with individual 3/8” condensate hose
    Connect the BLUE hose to the Water In fitting
    Connect the BLACK hose to the Water Out fitting
    Connect the CLEAR braided hose to the Condensate fitting
    
    Hand tighten the 3/4” hoses – they are made to seal this way.
    Always use two wrenches on the condensate tube but do not over tighten- firm is good.
    Typical lengths are 25, 50 and 100 feet.
    

    
    20 ton to 30 ton units- 1 1/4” diameter individual high pressure hoses along with individual 3/8” condensate hose.
    Connect the BLACK Rubber hose to the Water In fitting.
    Connect the RED Rubber hose to the Water Out fitting.
    Connect the CLEAR braided hose to the Condensate fitting.

    Fold back the metal wings of the 1 1/4” hose fittings to tighten the hose connections. It is best not to tighten one all the way then the next. Close one partially, then the other and alternate till they are completely closed.
    Always use two wrenches on the condensate tube but again do not over tighten- firm is good.
    Typical lengths are 25 and 50 feet.

Condensate

11. All air conditioning units remove humidity or water vapour from the air that they are cooling. This humidity is captured in the form of water and collects inside our equipment in a condensate reservoir. A condensate pump is used to automatically pump the condensate out of the machine and through the condensate drain line (clear braided line already installed above) to a drain. We will supply you with the appropriate tubing to facilitate pumping this water to a drain.

Operation

12. When all of the installation requirements have been satisfied, including a check for water leaks, and the unit is powered on, you are ready to operate the machine. Almost all of these units can be controlled in one of three ways:
    
    By a thermostat mounted on the front of the unit,
    By a push button mounted on the unit, or
    By a remote push button controlled through a remote cable assembly.
    
    Only one of these controllers can operate the unit at one time. Our Cool Air technicians can guide you through the selection process if the operating mode of the unit is not what you need.
    

Start (Select for either Push Button or Thermostat)

Push Button -

13. To start the machine, simply press the green button on the enabled controller. The Supply Air fan will start to blow air and the 3 minute countdown to start the compressor or actual cooling process will begin. Once the 3 minute timer has lapsed, the compressor will start along with the condensor or outdoor air fan. The cooling process has started and you will begin to feel cool air coming from the flex duct.

Thermostat -

13. To start the cooling process, the LCD screen of the Thermostat must read COOL. If it does not, then lift up the cover from the bottom and press the MODE button until the screen does read COOL. Assuming that the set point temperature is below the ambient room temperature, the Supply Air fan will start to blow air after a few seconds and the compressor will start after a countdown of up to 3 minutes. The Supply air fan can be set to run independently of the compressor so it will continue running even when there is no demand for cooling by pressing the fan button so that the fan icon appears on the LCD screen.
    

14. Once you have selected the COOL mode, and assuming that the ambient air temperature is higher than the SET POINT temperature indicated by the thermostat, a countdown of up to 2 minutes will begin.
    
    
15. The initial temperature shown on the LCD display is the actual room temperature. The desired temperature (SET POINT temperature) is set by pushing either of the UP or DOWN arrows.
    
    
16. After the countdown period has elapsed, the unit will switch the compressor and the condenser fan on, starting the cooling process.
    
    
17. The Evaporator fan (the one that supplies air to the room) can be set to continuous operation by pushing the fan button until the fan icon is lit in the LCD display. This fan will then operate continuously, regardless of whether the unit is cooling or not.
    
    
18. Simultaneously press the UP and DOWN arrows to switch the unit between Celsius (C) and Fahrenheit (F) temperature display.
    
    
19. In the event of a power failure, the unit will restart in the same MODE and at the same SET POINT it was at prior to the power loss.
    
    
20. The OUTDOOR and DAY/NIGHT buttons are not used in your application.

Stop

Push Button -

21. Simply press the Red button on the Push Button unit. The unit can be restarted after the mandatory 3 minute countdown.

Thermostat -

21. To stop the machine, press the MODE button on the Thermostat till it reads OFF and the cooling process will stop. The fan may need to be turned off too if it is set to run continuously. The unit can be restarted immediately but the cooling process will not start until after the mandatory countdown of about 3 minutes.
    
    
    
22. If you are leaving these units overnight, it is a good idea to shut off the breaker mounted on the unit itself.

These are complex machines and if you follow these installation instructions closely you should have trouble free usage. However if something should go wrong with the unit or you are unsure of proper procedures please call us immediately – Cool Air Rentals Ltd – 604.253.4171. Continued improper use of any unit can result in damage to the unit and costly repairs.

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