Owner's Manual

Page 10

VI / Application Requirements

Water Supply Temperature Requirements - The supply water temperature to

your KwiKool unit at the installation site should be from 40 to 85 degrees F to the

condenser supply water inlet located on the back of your KWIB Iceberg. If the water

supply is above 85 degrees 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 compart-

ment Reset the unit by pressing the button labeled HP Reset. Standard water-cooled

KwiKool models are not designed to operate with supply water temperatures below 40

degrees F. Low-ambient temperature controls must be special ordered at an additional

cost. Temperatures below 40 degrees F will cause low performance and/or freezing and

operating in this condition can shorten the expected operational life of your system and

void your warranty.

Water Supply Pressure - KWIB systems are equipped with a Water Control Valve,

the water control valve requires water pressure of at least 35 psi and not to exceed 150

psi. Pressures below 35 psi may cause a High Pressure trip. This requires a manual

reset (see paragraph above). And pressures above 150 psi can cause the control valve

to fail and leak supply water in your conditioned space.

Capacity & Temperature Settings - Sizing of our units is based on matching

capacity to a specific heat load while maintaining a 72 degree F temperature. In order

to reach temperatures below 72 degrees F, the unit must have extra capacity. There-

fore, we recommend that you do not set the temperature set point below 72 degrees

F, unless you have excess cooling capacity beyond your heat load, since this may

cause the unit’s evaporator coil to freeze up.

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.

VII / Maintenance

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.

Conditioned Air Supply Drive Belts - Your KwiKool KWIB120 models moves 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, replace 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).