KwiKool KIB120 Portable Cooling System Instruction Manual

KwiKool KIB120 Portable Cooling System

Before installing and using your KwiKool Portable Cooling System, read this manual carefully for instructions and proper usage and all safeguards.
This manual should be retained for future reference.

Unit Components

Assembly and Installation

• Air Chutes (If equipped or as an optional accessory) – Install supply air flanges to the front of your KwiKool unit above the control panel. (See instructions in the air chute kit for specific procedures).

Condensate Tank – KwiKool systems come standard with an external 5-gallon condensate tank. The external condensate tank is equipped with a float switch that shuts your KwiKool down alerts operators with an alarm and displays CF (“Condensate Full”) when the condensate tank is full. This prevents accidental water overflow on the floor. The alarm will clear automatically upon emptying the 5-gallon tank and reconnecting it. If connecting to a permanent drain, do NOT connect or use the equipped tank. To use the external condensate tank, remove the factory-installed condensate float switch bypass plug on your KwiKool unit and install the male connector jack supplied on the condensate tank. Next, connect the factory-supplied ¼” ID condensate tubing to the ¼” OD barbed condensate water outlet on the back of your KwiKool and connect the discharge end of the tube to the ¼” barbed connector on the condensate tank. The condensate float jack must be inserted into the female condensate jack to operate your KwiKool. CF displays if the jack is not connected or the bypass plug is not inserted properly.

Ceiling Kit (Optional Accessory) – The ceiling kit is comprised of flanges with foam tape, fasteners, two (2) eight-foot lengths of flexible duct, duct clamps, and one 24” X24” replacement ceiling tile for KIB 1411 and KIB1811. All other KIB models use two (2) 24” X24” replacement ceiling tiles.

Follow these installation steps

1. Align the holes of the flange to the holes located on the top of the unit. Attach to the top of the KwiKool unit using the factory-supplied fasteners.
2. Attach each duct to the flanges on the replacement ceiling panel(s); secure the duct to each flange using the supplied clamps.
3. Install the replacement ceiling panel(s) in the ceiling grid with the duct attached, connect the open end of the duct to the flanges on your KwiKool and secure it with supplied clamps. Be sure the area where you are ducting can absorb the heat load and is open enough to keep the system from returning its hot discharge air. Your KwiKool must have fresh make-up air going to the condenser to operate.
4. For Ceiling Kit Users – The standard two-duct ceiling kit (CK-XX) is recommended to be used with KIBXX models for optimum performance. KwiKool’s Iceberg (KIB) units may be used for primary, supplemental or standby cooling. Using KwiKool’s exclusive ceiling kit ensures that you can utilize 100% of the unit’s rated capacity without creating a negative pressure in your conditioned space. KwiKool’s exclusive IO integral condenser system isolates both the condenser discharge air and the condenser make-up air from the conditioned space.

Note: The space where the make-up air and discharge air are directed (normally above a drop ceiling) must be well-ventilated and large enough for the heat load to be absorbed. Condenser discharge air is prevented from entering the make-up air inlet by way of a factory-installed deflector on your Ceiling Kit. Make sure that the deflector is on the discharge (rear) duct from the unit. However, if the condenser discharge and return space is unventilated, closed off or unable to handle the heat load, the make-up air will continue to get hotter until the system is not able to handle the high heat buildup. This will lead to the unit tripping its high-pressure safety switch. If this occurs, you will get an “HP” on the control panel. To resolve, fix the lack of make-up air and reset the high-pressure switch per the instructions in the Troubleshooting Guide section. Additionally, the ceiling kit replacement panel is not limited to ceiling use and may be placed or fastened to any vertical or horizontal surface providing the discharge and make-up air can be directed to the space where it is mounted. For areas with a closed ceiling or no ceiling use the double flange ceiling kit method or extended duct method.
Visit www.KwiKool.com for more information and a complete set-up guide.

Power Connection

Verify that the source power, phase and breaker size is compatible with your KwiKool serial plate information and that the electrical circuit is dedicated only for the use of your KwiKool Unit. If you aren’t sure about your power, contact a licensed electrician. KwiKool systems are factory-equipped with 8 feet of power cable sized to meet the power requirement of your system. Extension power cable is allowed but cannot exceed 25’ and must be rated to operate your KwiKool. KwiKool units that come supplied with a factory- installed plug require the exact receptacle to match the plug and the exact circuit size and power. Cutting the power plug on your KwiKool unit will void its warranty. All other KwiKool systems over 3 tons are not equipped with a male plug and must be hard-wired by qualified personnel.

Note: 208/230 volt systems require voltage to be selected to the proper voltage before operating your unit. This is controlled by a rocker switch located on the top of the control box in the service door. The factory default selection is 208 volts for KwiKool systems purchased after June 2016 and 230 volts for equipment purchased before this date. Always set teh voltage incoming to the correct setting to avoid potential operational issues. Read the Operational Safeguard section before applying electrical power.

Operational Safeguards

Read the following safeguards carefully before installing your KwiKool

• A. Do not operate or install your KwiKool unit in a potentially explosive, combustible, or corrosive gas atmosphere.
• B. Keep your KwiKool system away from flammable materials and open flame.
• C. To avoid electrical shock keep your KwiKool system away from direct contact with water and any liquids and do not touch your system with wet hands.
• D. To ensure your KwiKool system is stable, the floor on which the system is to be placed should be level, free of vibration and strong enough to support the weight of your KwiKool model.
• E. Do not move the system while it is operating. Before moving the system, first turn the system to OFF then unplug the system from the power source. Then unlock casters.
• F. Do not tilt or overturn your unit, since this could damage the compressor.
• G. Do not place objects on top of your unit.
• H. Do not insert your hand or any other object into the cold air supply chutes.
• I. Do not operate your KwiKool system with its service doors open.
• J. If your KwiKool system makes abnormal noises or vibrations, call KwiKool at 1-800-594-5665.

System Operation

• A. Apply Electrical Power – Once power is engaged by plugging in your system and/or switching the breaker to the on position, your KwiKool display will come alive and show the current room temperature. The unit is set to OFF and the fan is set to the default position. A 2-minute time delay starts, indicated by a flashing F on the display. If you are not seeing anything on the display, refer to the Troubleshooting Guide section of this manual.
• B. Control Panel – The control panel display shows the current operational status of the unit.

1. ON/OFF Button – Pressing this button on your control panel engages or shuts down your KwiKool system. All settings selected are stored in the microprocessor board even if the power is lost including the ON/OFF selection. Refer to the Troubleshooting Guide section of this manual if your Kwikool is alerting an alarm after selecting ON.
2. MODE Button – Depressing the MODE button selects your choice of operations. Cool, for cooling with compressor operation. “Cool” will flash when the compressor is running. “Cool” will not flash when the room temperature is equal to or lower than the set temperature or the system is timing out. Fan, for air circulation without compressor operation.
3. F/C – Selects the way that room temperature and set point are displayed on the control panel. The choices are Fahrenheit or Celsius. F is the factory default. This indicator will flash when the system is in “time out” to prevent compressor short cycling.
4. Fan – Pressing the fan button has different operations depending on the model.
   • Single Speed Models – KIB 2411, KIB6023, KIB6043, KIB12023, KIB12043. On the single-speed models, pressing the fan key cycles the supply air fan between the auto fan and the fan on. When the system is in auto fan, the supply air fan only operates when the compressor is running. When the fan is set to on, the fan runs continuously as long as the unit is in the ON position. The fan speed window will be blank on these models.
   • Three Speed Models – (All other models NOT listed above.) The supply air fan control button has several functions. First pressing the fan key will cycle through the fan speeds. Each press cycles from low, med, high, and multispeed. Multispeed will display all three speeds and flash only the speed currently in use. The fan speed is automatically adjusted based on demand. The second function is to change from auto fan to fan (constant fan). To change this function, press and hold the fan key until the indicator changes from the fan (constant fan) to the auto fan. When in FAN MODE, auto fan is not available. If the unit was set to an auto fan before changing the mode to the fan, the auto fan will return when the unit is set back to COOL. Factory default is a fan (constant fan) and is the best choice for electronic equipment.
   • KIB12023 and KIB12043 – These models are 2-stage systems and have a fan speed for each stage. This feature is not user-settable. This system always starts in first-stage fan speed (low) in COOL or FAN MODE, second-stage fan speed (high) only operates in COOL MODE when the second-stage compressor is running.
5. Up (+) and Down (-) Arrow Buttons – Raises or lowers the desired set temperature. When changing the set point, pressing the + or – key, the word SET will appear on the display and the current set point flashes ON and OFF. The value of the set point is changed to 1 degree each time the + or – is pressed. The adjusted set point flashes on and off 12 times after the last change and then returns to display the room temperature.

NOTES

• Lowering or raising the set point will not change the temperature of the supply air. For best results always adjust the set point to a temperature your KwiKool can cycle on and off at to avoid operational issues such as freezing or rapid discharge fan cycling, KwiKool systems are designed to maintain the set point when sized properly and constant operation without achieving the set point may shorten the expected operational life of your system.
• The lowest set point temperature available for your KwiKool is 60 degrees F, and the highest setting is 95 degrees F. The control will not allow adjustments beyond these ranges.

System Operation

1. Turn On Your KwiKool System – Pressing the ON/OFF button once on your control panel will put your unit in the ON position and “ON” will be displayed on the right side of your display as well as the previously chosen mode.
2. COOL – If the unit was previously set to the cooling mode (cool) then “cool” will be displayed. If the compressor is running, the ”cool” on the display will be flashing. If your unit has been sitting for over 2 minutes, this should happen immediately upon turning the unit on, unless your set point is lower than the current room temperature. In this case, your unit is ready to automatically turn on once the temperature rises above the set point. If the unit was recently turned off or the unit turned itself off because it reached the set point, the compressor will not turn on until the system waits for approximately 2 minutes. This prevents the compressor from being damaged do to a condition called short cycling. The indicator that the unit is in the “time out” condition is that the F (or C) in the display will be flashing. When the compressor starts, the F will stop flashing and the “COOL” will begin flashing. Note that the condenser fan will not start immediately with the compressor. Once the condenser fan kicks in and if the ambient temperature entering the make-up air for the condenser return is below 75 degrees F you may notice the fan cycling on and off, this is normal. For KIB120 models, the fan will instead speed up and slow down in place of turning on and off. If the display flashes 99, this indicates ambient temperature of 99 degrees F or more. This is normal and will stop flashing when the ambient temperature falls below 99 degrees F.
3. FAN – If the unit was previously set to the fan mode then “FAN” will be displayed and the fan will start to run.

Built in Safeguards

KwiKool is proud to provide its customers with high-quality features and safety devices that are not found in most other brands.

• A. Time Delay – Protects your KwiKool from potential damage by delaying the compressor from starting before the pressures in the mechanical system equalize. This always activates when your KwiKool cycles off, is turned off, power is lost and then restored or the operational mode is changed. The display flashes C or F if the time delay is activated.
• B. Condenser Fan Cycling or Condenser Fan Speed Control – Part of your KwiKool limited freeze protection and works by regulating the discharge air flow to keep the refrigerant pressures at the optimum range.
• C. High-Pressure Switch and Alarm – Protects your Iceberg Series unit from potential damage to the mechanical system by shutting down, sounding an audible alarm and displaying a fault code (HP) when the system pressure exceeds safe operating conditions. The high-pressure switch is a manual reset switch and must be reset after the switch is activated and the condition causing the trip is corrected.
• D. Low-Pressure Switch and Alarm – Protects your KwiKool from potential damage to the mechanical system by shutting down the system, sounding an audible alarm and displaying a fault code (LP) when the low side pressure is too low. This is normally caused by low refrigerant charges. This switch is an automatic reset.
• E. Automatic Restart – In the event of a power loss your KwiKool Iceberg resumes operation when the power is restored. All operational functions are preserved in the memory of the Microprocessor Board including the ON/OFF selection.
• F. Condensate Pump & High-Level Alarm – All KIB Iceberg models are factory-equipped with an internal high-lift condensate pump. KwiKool condensate pumps can pump the condensation either to the factory-supplied condensate bottle or to a drain or other location as required by the application. The internal pump is rated at 20 feet of head pressure. This means it can pump water to a maximum of 20 feet vertically. Each pump is equipped with an overflow safety cut-off that automatically shuts your Iceberg unit down, sounds an audible alarm and displays a fault code (CP). This prevents accidental flooding of the conditioned space.
• G. Condensate Tank & High-Level Alarm – All KIB Iceberg models come standard with an external condensate tank. The tank is equipped with an overflow safety cut-off. When the tank is full, the safety will automatically shut down your Iceberg unit, sound an audible alarm and display a fault code (CF) This prevents accidental flooding of the conditioned space. If you are using the supplied bypass plug and not using the tank this alarm is nonfunctional.
• H. Power/Phase Monitor (Optional) – The KwiKool Phase Monitor is available as an option on all 3 phase KwiKool models. The phase monitor samples the power supply for low or high voltage, out-of-phase and loss of phase. If any of these power conditions arise, the Phase Monitor will automatically shut down your Iceberg unit, sound an audible alarm and display a fault code (A1). This alarm will reset automatically when the power is restored to normal.
• I. Service Ports – Located in the filter access compartment in the front of your KwiKool below the control panel. This gives service personnel a connection point for service gauges to monitor the operating pressures of your iceberg refrigeration system.
• J. Sight Glass/Moisture Indicator – Located in the discharge air make-up inlet. This feature allows operators and service personnel to view the condition of the refrigerant returning to the evaporator coil. Used as a diagnostic tool by qualified personnel.

Application Requirements

• A. Air Temperature Requirements – The environmental requirements of your KwiKool unit at the installation site are 60 to 110 degrees F for the condenser make-up air located on the front inlet on the top of the unit. If the unit is operated in an environment above 110 F the high pressure switch may trip, stopping the unit’s compressor. You also may notice diminished performance. The High-Pressure Switch type is a manual reset. The reset switch is located in the Return Air grill filter compartment. Reset the unit by pressing the button labelled HP Reset. Standard air-cooled KwiKool models are not designed to operate at temperatures below 60 degrees F. Low ambient temperature controls must be specially ordered at an additional cost. Temperatures below 60 degrees F will cause the discharge air exhaust fan to cycle excessively and may damage the fan cycling switch, which requires qualified service personnel to repair and can void your warranty.
• B. Capacity & Temperature Settings – The sizing of our units is based on matching capacity to a specific heat load while maintaining a 72-degree F temperature. To reach temperatures below 72 degrees F, the unit must have extra capacity. Therefore, we recommend that you do not set the temperature set point below 70 degrees F unless you have excess cooling capacity beyond your heat load, since this may cause the unit’s evaporator coil to freeze up.
• C. Positioning of Unit – Do not place your KwiKool unit in direct sunlight, The unit should be positioned so that the output of the unit can be focused as close to the heat-generating equipment as possible with the front grill fully exposed. Do not block the front of the unit, since this will cause a restriction in the airflow and can cause low performance and/or evaporator coil freezing.

Maintenance

• A. Air Filters – Your KwiKool unit comes from the factory with filters installed on the evaporator inlet to prevent dust and debris from entering the system and circulating in the conditioned space, factory installed filters are a disposable type and must be periodically checked and replaced based on the air quality of your conditioned space. Failure to maintain the filters will cause restricted air flow and low overall unit performance. The air filter is located on the front of your KwiKool unit below the control, release the 2 slotted fasteners on the access door to open.
• B. Conditioned Air Supply Drive Belts – Your KwiKool KIB120 models move air over the evaporator coil to remove heat and moisture from the conditioned space by way of a motor attached to a blower wheel, this wheel turns by way of a pulley and belt system. Inspect/adjust these belts every 60 days of operation, and replace them as needed. Failure to maintain the drive belts will cause low performance, coil freezing or in extreme cases damage to the blower/motor in the event of a belt breaking. Located in the left side evaporator access door as you face the control panel. When adjusting the belts, adjust them from the base of the motor. Do NOT adjust the sheave (pulley).

Utilizing your KwiKool System

In contrast to conventional air conditioners, which circulate air conditioning capacity evenly to an entire floor, KwiKool systems are designed for cooling an area with a high concentration of heat load, usually from electrical or computer equipment. Understanding the capabilities of your KwiKool can help you avoid problems. For example, if you add heat-generating equipment to the room after purchasing a KwiKool system, you may be short of the necessary cooling capacity. Your KwiKool system offers an effective affordable solution for many applications. It can also provide spot cooling for workers or process cooling within a large space without the use of condenser ducting, such as a warehouse factory, or production area. If the system is used in this manner, the cold air supply must be within 5 feet of the person or equipment being cooled, since the hot ambient air will mix with the cool air very quickly. Your KwiKool system is specifically designed to adapt to today’s high-tech environments such as telecommunication or computer rooms and is equipped with the necessary controls to maintain those special environments. Call your nearest KwiKool Distributor or 1-800-594-5665 for help or questions about other applications.

Fault Codes

Your KwiKool Iceberg System incorporates a self-diagnostic system that sounds an audible alarm, stops your system and displays a fault code to indicate the nature of the problem on the display panel. See the troubleshooting guide later in this manual for further information.

• CF = Condensate Tank Full
• CP = Condensate Pump Fault
• HP = High-Pressure Switch Tripped
• LP = Low Pressure Switch tripped or tripping
• A1 = Phase Monitor Senses power problem (if equipped)
• FP = Freeze Protection

KIB Troubleshooting Guide

The unit displays CF, Audio alarm fails to clear on start-up or while operating| The external Condensate Tank is full. Condensate bypass jack or condensate float switch jack is not installed or not positioned correctly. The water level switch is engaged| Empty External Tank (if using). Make sure thank is upright and level. Unplug the bypass plug or tank plug and reinstall it to ensure good connections. The system automatically resets when a fault condition is corrected.
The Unit Displays CP and the Audio alarm is sounding during start-up or while operating.| The microprocessor board has detected a high water level in the condensate pump.| Inspect the condensate pump for overflow and proper operation, and check the condensate line for a clog or crimping.

Resets automatically upon fault correction, or call

1-800-KwiKool if the problem persists.

The microprocessor board has detected high pressure. The High-Pressure switch is tripped.| High pressure is normally caused by reduced condenser airflow. Check for restriction in ducting. Check for condenser air system ventilation (See Section II. C. 4). Check condenser motors and/or blowers for proper operation. On KIB12023 or KIB12043 check VFD (motor drive) for the trip. Reset if necessary. High pressure is a manual reset type. To reset, open the filter door. The button is located above the filter. Press the button to reset (you should feel a click).
Unit Displays LP, Audio alarm is sounding during start-up or while operating.| The microprocessor board has detected low pressure. This alarm might cycle on and off.| Check the air filter and replace it if dirty. Make sure nothing is blocking the filter inlet.

Check for icing on the coil. Resets automatically when a fault condition is corrected. Call 1-800-KwiKool if the condition continues.

Unit Displays A1, The Audio alarm is sounding during start-up.| Phase Monitor (if equipped) has detected incoming power issues on equipped systems.| See Troubleshooting Guide for systems equipped with a phase monitor (Appendix – Part B).
The audio alarm fails to clear on start-up or while operating, the unit displays FP.| The microprocessor has detected freezing on the evaporator coil if the system has a factory-installed freeze sensor. (Special order)| Check for freezing on the evaporator coil and turn the system off to let it thaw out, call 1-800-KwiKool if your system is not equipped with a freeze sensor. Auto resets upon correction.
The system is ON and the display is showing ON but the unit is not supplying conditioned air.| The system is in time out (F or C is flashing), the control is set above room temperature or the control is adjusted out of operating parameters or not in the correct operational MODE.| Wait 2 minutes, and review the System Operations guide.
Fault| Possible Cause| Possible Solution
---|---|---
The system is ON but the microprocessor board resets the time delay (flashing F or C) when the compressor attempts to start.| The microprocessor board detects voltage drops below operating parameters.| Confirm the integrity of your source power, and check for proper wire size and length of power extension cable. Be sure the circuit is dedicated to only the operation of your KwiKool.
Power is supplied but the control is blank| Low low-voltage circuit is not engaged| Check source power breaker and verify incoming power to the connector, reset switch on low voltage transformer in KIB120XX and KIB6043 systems. Call 1-800-KwiKool for assistance.
System trips breaker on start-up| Incoming power is incorrect, the breaker is undersized or faulty, and or power cable is too long and or undersized.| Verify the circuit and power cable are within the specifications of the system, consult with your electrician or call

1-800-KwiKool for guidance.

The system starts up and cools but the condenser discharge air exhaust fan ramps up and slows down or the condenser discharge fan stops and starts.| Normal operating conditions especially in low temperatures. Only the KIB120 or units with optional ultra-low ambient temperature controls ramp up and slow down. All other models stop and start.| No action is required, see sections IV C. 2

Note: To avoid excessive fan cycling, discharge return air must not be below the specifications of your KwiKool system.

The display shows 32 and the unit will not turn on cooling.| No connection of the temperature sensor to Micropro- the cessor. Temperature Sensor malfunction.| Call 1-800-KwiKool for instructions.
Supply airflow is limited, and or water is dripping from the front of the system| Supply or return air is blocked or restricted, and the evaporator coil is freezing.| Verify that supply and return air is not blocked and ductwork is installed to specification, remove or add duct as needed, and check the air filter for blockage.

KIB120xx users check the supply air fan for correct rotation, refer to Appendix B.

then pumps. Check for line crimping or restrictions and proper line run height. Refer to the user guide Section 5: Built-in Safeguards.
The evaporator coil is freezing| Low or restricted airflow. Undersized capacity, the unit constantly on, unable to achieve set point. Low return air temperature out of factory specifications. The evaporator door opened, and the mechanical system malfunctioned.| Direct supply return air to the area of highest heat load, check for blocked airflow from the supply air, replace air filters, adjust set point to allow the unit to cycle, add another KwiKool system or larger capacity model, close evaporator compartment door, check for correct rotation and inspect drive belts on KIB120XX supply air blower for worn condition or breaking, Install service gauges to view pressures.

Call 1-800-KwiKool

A chatter or hum is heard from the control box while the system is operating.| Incoming source power is poor or the low voltage component is faulty.| Check for proper voltage selection on 208/230-volt units, remove excess or undersized power cables, and check incoming power.

Call 1-800-KwiKool.

Discharge air exhaust fan stops and the system alarms HP during operation. KIB120XX only.| The condenser drive has detected a fault with the incoming electrical power or is not receiving an operating signal.| Check the condenser motor drive (VFD) for the trip, and reset if needed. Note displayed fault code on the drive and call

1-800-KwiKool if the problem persists.

99 Flashes on display| Ambient room temperature over 99 degrees F.| The unit is working properly. Lowering of room temperature will rectify the flashing.
60 Flashes on display| Ambient room temperature under 60 degrees F.| Limits of the unit have been reached. Operating temperatures are 65 – 105 degrees F.

Appendix

• Part A: Systems Equipped with a Phase Monitor
• Part B: Special Section for KIB120 Systems

A: Systems Equipped with a Standard Phase Monitor

Unit displays A1 Audio alarm sounding during start-up, phase monitor displays, lockout “Front Fault” red light| Phase monitor detects reverse phasing, lost phase or improper power incoming.| Exchange any line voltage wire with the other, and verify incoming power. Auto reset upon correction.
The unit displays A1, the Audio alarm is sounding during start-up, phase monitor displays, lockout “Front Fault” low volt red light.| Phase monitor detects voltage lower than the factory setting.| Verify incoming power, and slowly raise the voltage to adjust the knob on the phase monitor to match incoming power. Auto reset upon correction.
The unit displays A1, the Audio alarm is sounding during start-up, phase monitor displays, lockout “Front Fault” high volt red light.| Phase monitor detects voltage higher than the factory setting.| Verify incoming power, Slowly lower the voltage and adjust the knob on the phase monitor to match incoming power.
The system starts up but goes into visual and audible alarm A1 when the compressor starts.| Phase monitor detects voltage drop.| Observe the phase monitor on start for fault lights and adjust the monitor accordingly, verify incoming power. Auto reset upon correction. Check wire size and voltage drop.
The unit displays A1, the Alarm sounds during start-up or operation, phase monitor displays a “Back Fault” red light.| A fault has been detected in one of the unit’s condenser motors.| Inspect motor components for faulty or loose connections and proper operation, Call 1-800-KwiKool for guidance.

The KwiKool Phase Monitor is factory-installed and is located inside the Control Box. The Phase Monitor can be accessed through the right side service door as you face the unit and remove the cover to the control box.

• a. LED Lights –
  Used to indicate failure cause.

• b. Line Side –
  Incoming voltage from the contractor.

• C. Load Side –
  Outgoing voltage from the contractor

• d. Voltage Adjustment Knob –
  Set the knob to match the correct unit voltage.

• e. Fault Interrogation Knob – Never Adjusted.
  Factory set to 8 seconds for the time it takes for non-critical fault to be analyzed & before de-energizing load.

• f. Lock-out Time Delay Knob – Never Adjusted.
  Used for time between de-energizing and re-energizing the load with a factory setting of 1 minute.

• g. % Voltage Unbalanced Knob –
  This is the allowable voltage unbalanced between the 3 phases with a factory setting of 10%.

• h. Reset Switches –
  Position 1: Full Manual Reset (MAN-MAN). Manual control reset is used for highly critical loads. The system will not reset until the fault is corrected and then manually reset by personnel.
  Position 2: Leave In Full Automatic Reset (AUTO-AUTO). Auto Front/Manual Back Reset (AUTO-MAN). Automatic reset is used on the front line side only (Power coming into the unit). The backload side requires a manual reset. This setting is typically used with a reliable power source (Power to condenser & evaporator motors, and compressor).

B: Special Section for KIB120 Systems

• A. Compressor Priority Switch – For KIB12023 and KIB12043. These KwiKool models have 2 compressors and refrigerant circuits that operate independently of each other and are staged to come on at different intervals as needed for cooling. Your KwiKool KIB120 is equipped with a Compressor Priority Switch located on the top of the control box in the evaporator access compartment. The rocker switch is factory set to use compressor 1 as the first stage compressor or lead compressor on start-up, and compressor 2 as the second stage or lag compressor. The lag compressor comes on when the demand requires it. The rocker switch when moved to the compressor 2 position reverses the order of the lead and lag compressors. This allows for rotation of the compressors for even wear. Change this switch position at regular intervals. Factory recommendation is approximately every 6 months. Turn off the power to the unit before changing this switch position.

• B. Evaporator Fan Rotation – On KIB120 models without the optional factory-installed phase monitor, you will have to visually confirm the rotation direction of the cold air supply fan and correct it if needed. As you face the front control panel of the KwiKool unit, open the left-side evaporator access door with the system in the OFF position. Secure the door from closing and keep clear any objects from the moving or rotating parts. Select FAN mode on your control pad and turn the system ON briefly and then OFF. The supply air fan should be rotating in a clockwise direction from this view. If rotating counterclockwise, qualified personnel should disconnect power at the source exchange any incoming line voltage wire with any other line voltage wire and repeat the previous instructions. Operating your KwiKool unit with the supply air fan rotating incorrectly will cause low performance and evaporator coil freezing.
  Note: KwiKool units with a factory-installed phase monitor have already been set for rotation. Users will be notified of incorrect rotation by an audio and visual alarm that will clear automatically when the phase issue is corrected by exchanging the line voltage wire as described above in this section.

• C. Supply Air Fan Speed – KIB120 models are 2-stage systems and have a fan speed for each stage. This is not user-settable. This system always starts on 1st stage fan speed (low) in COOL or FAN MODE, the second-stage fan speed (high) only operates in COOL MODE when the second-stage compressor is running.

• D. VFD (Variable Frequency Drive) – Used on KIB120 models to optimize the operation of the condenser fan by slowing down and speeding up the rotations of the blower to maintain the best pressure needed to operate in your environment. Located in the left side evaporator access compartment as you face the control panel. This displays the current operating frequency or any error message needed for fault diagnosis. Call Factory Technical Support for guidance.
  DO NOT TAMPER WITH OR ATTEMPT TO ADJUST THIS SYSTEM

• E. Conditioned Air Supply Drive Belts – Your KwiKool KIB120 models move air over the evaporator coil to remove heat and moisture from the conditioned space by way of a motor attached to a blower wheel, this wheel turns by way of a pulley and belt system. Inspect/adjust these belts every 60 days of operation, and replace them as needed. Failure to maintain the drive belts will cause low performance, coil freezing or in extreme cases damage to the blower/motor in the event of a belt breaking. The belts are located on the left side evaporator access door as you face the control panel. When adjusting the belts, adjust the tension using the base adjustment screw. Never adjust the sheave (pulley) as it can cause damage to your system and/or make the system have poor performance.

www.KwiKool.com.

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