1. Safety precautions ⚫ This product is an industrial cooling unit for control panel. Do not use it for any other purposes. ⚫ Be sure to read these precautions carefully before starting operation for proper use. ⚫ All the warnings and cautions described herein must be observed in order to use the product safely. The marks and their meaning shown in this manual are as follows.
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Avoid using other filters than enclosed. → Use of fine filters will cause efficiency loss in heat releasing, and thus leads to decline in cooling performance or breakdown of the product. Condensate water in the cooling unit may spill out if the cooling unit is moved after operation for dismounting or relocating or the enclosure itself to which it is attached is moved.
3. Mounting 3- Precautions for mounting Danger or prevention of electrical shock, power connection to the enclosure should be disconnected before starting installation work. Electrical works required for installation of the cooling unit should be done only by specialists. Installation of the cooling unit should be done only by persons with specialized knowledge. Caution or installation, do not use any parts other than originally supplied ones.
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Caution About Short circuit Electric components or other objects located near the cool air outlet may disturb cool air circulation. If cool air blown out from COOLCABI hits against them, it can directly return to the suction port without being distributed to the whole area in the enclosure, which is called short circuit of air. This causes not only troubles of the components but put an extra load on cooling operation which results in overcurrent and product failure.
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Procedures for recessed mounting of laterally mounted Standard type Not including Condensate-free type ☞See Cut out the mounting surface in accordance with the respective mounting cutout drawing. page 37 Detach the front panel from the COOLCABI. As the front panel is fixed with screws on the lower side with its upper rim hanging on the main body, remove the screws first and then lift up the cover to detach.
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●Mounting cutouts for external mounting – Standard Lateral mounting type <View from outside enclosure> OCA-H3 OCA-H6 OCA-H OCA-H 6 OCA-H OCA-H 9 ●Mounting cutouts for recessed mounting – Standard Lateral mounting type <View from outside enclosure> OCA-H3 OCA-H6 OCA-H OCA-H 6 OCA-H OCA-H 9...
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●Mounting cutouts for external mounting – Standard Roof mounting type <View from outside enclosure> OCA-H3 OCA-H7 OCA-H OCA-H 7 OCA-H 3 OCA-H3 ●Mounting cutouts for external mounting – Condensate-free Lateral mounting type <View from outside enclosure> OCA-H35 BCD OCA-H7 OCA-H 3 OCA-H 3...
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3-3 Attachment of drain hose Condensate water arisen from dehumidification by COOLCABI is discharged through a drain hose. Observe the following cautions and attach the drain hose properly. Caution If a drain hose is not attached properly, water collected in the drain pan inside COOLCABI can overflow into the cooler or the enclosure interior.
3-4 When Adjustable Louver is used Standard type Lateral mounting only Attaching the Adjustable Louver enables to direct output air to a desired direction. *Cooling capacity may decrease by as much as 5% when the louver is used. *To keep the set angle not to be affected by eternal impact including vibration, the base plate and the louver top is rather tightly fitted.
Circuit diagram 5. Operation Precautions for operation Caution or protection of compressor, wait at least 3 minutes after installation and then turn power on to start operation. requent turning on and off of a compressor may be a cause of product failure and shorten its lifetime.
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5-3 Change of Setting temperature Caution It is basically recommended to maintain the initial set value of 35℃. Setting at an unnecessarily low value may cause excessive condensation and excess amount of drainage water. Turn on the COOLCABI. The current internal temperature is displayed. Press the SET button.
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・Setting for maintenance timer Default: 1 Setting range: , This is to set the contact output behavior at the set maintenance notification time. ☞ See page 47 for assignment of alarm output terminals : Switchover of contact is disabled : Switchover of contact is enabled *If this parameter is set at “...
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5-6 Operation mode setting ollowing to power connection, COOLCABI starts operation in each operation mode. actory setting for the setting temperature is 35℃ with 5℃ differential, which means the compressor starts for cooling when the temperature inside an enclosure reaches 35℃ and stops at 3 ℃. our operation modes of continuous run, three different energy saving modes are available.
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3 Energy saving mode Internal fan runs in conjunction with cooling operation. Energy saving is realized by stopping the internal fan when cooling operation is stopped in a cool season like winter. The values in have been set as default. Setting temperature 35℃...
6. Alarm Alarm number COOLCABI outputs alarm when it detects an abnormality. An alarm number is displayed, the alarm lamp lights up and alarm contacts change over by the setting of alarm output terminals. Operation Alarm No. Description Cause Remedy behavior ilter clogging Eliminate the cause of problem.
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Assignment of alarm output terminals Once an alarm is detected, the alarm output contact changes over. By setting the alarm output terminals, monitoring of many different operations is enabled. Each setting functions by ☞ changing the parameters AS and Ao See page 43 .
7. Maintenance Caution Be sure to disconnect power before carrying out any maintenance work. Carry out maintenance works properly by designated personnel who has specialized knowledge. Before starting any maintenance work, check for a refrigerant leak using a safe detector which does not use fire.
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Replacement of External fan Replacement procedures for external fan is as follows. Turn off the COOLCABI. 1) or Standard type, detach the front panel. 2) or Condensate-free type, detach the filter first and then detach the fan mounting plate. Unscrew the fan fixing screws.
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7-4 Maintenance of Evaporation Sheet and Evaporation fin for Condensate-free type only In case a COOLCABI discharges water from the drain hose despite its working condition is within the specified range not exceeding 35℃,85%RH both inside and outside , the Evaporation fin or the Evaporation sheet may be dirty. Clean or replace these parts according to the following procedure.
8. Communication function Serial communication using the communication terminal enables to change the settings and acquire data of operating state and alarm history. 8- Preparation for communication Connect the communication cable with the communication terminal. Use a shielded communication cable and connect its shield to the terminal.
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8- Communication method Communication starts from a request message from the customer’s equipment Master and ends with a response message from the cooling unit Slave . The cooling unit does not send a request message. Message configuration ① Slave address byte ②...
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3 Error ①Response in case of an error Exception response COOLCABI Slave address to 99 byte unction code byte Error code byte Low-order byte High-order byte ②Error codes Error name Code Description Function code error No corresponding function code exists. Address error The specified address does not exit (For both reading and writing).
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②Parameter setting register ☞ See page 4 to 43 Register No. Description Value Setting temperature 3 to 45℃ Differential df 3 to ℃ orced cooling operation time Cd to 3 to 3 seconds High temperature alarm AL 35 to 5 ℃ Differential for High temp.
9. Specifications Models Specifications Standard Lateral mounting type OCA-H300BC- OCA-H600BC- OCA-H1000BC- OCA-H1600BC- OCA-H2200BC- OCA-H2900BC- Model Type of mounting Lateral mounting (External or Recessed) Cooling capacity *7 Rated voltage Single phase, to 4 V AC, 5 6 Hz .9 3.7A 3.4 4.4A 5.
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Common specifications Working temperature ℃ to +5 ℃ Working humidity Not exceeding 85%RH, free from condensation Temperature setting range +3 ℃ to +45℃ Default: 35℃ Display Internal temp. Alarm code, Operation lamp, Alarm lamp High temperature alarm, Detection of abnormal heat dissipation, Detection of temperature sensor disconnection, unction Maintenance reminder, Forced cooling operation for inspection,...
3 Condensate-free Lateral mounting type OCA-H35 BCD-AW OCA-H7 BCD-AW OCA-H 3 BCD-AW OCA-H 3 BCD-AW 10. Warranty This product is covered with -year warranty from the date of shipment, provided that such warranty does not apply to damages and malfunctions resulted from other than normal use. 11.
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