Instruction Manual Roof Mounting Type OCA-S2300AC OCA-S3000AC Caution Please read this brochure carefully before use and keep at hand for future reference. ≪Contents≫ 1. Safety Precautions ・・・・・・・・・・・・・・・・・・・・・・・・ 2 2. Mounting ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 3-6 3. Wiring ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 7-9 4. Operation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 9-14 5.
1. Safety precautions - This product is an industrial cooling unit for control panel. Do not use this 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 meanings shown in this manual are as follows.
2. Mounting 2-1 Caution Danger For prevention of electrical shock, power supply to the control panel should be disconnected before installation work. Caution For installation, do not use any parts other than originally supplied ones. Failure to this may result in injury or breakdown of the cooling unit. Cut out the mounting surface of the enclosure as specified in the drawing of page 5.
Page 26
2-2 Mounting procedure (1)Process the mounting surface to cut out the openings in accordance with the respective mounting cutout drawings in Page 5. (2)Place the enclosed sealing plate on the bottom surface of the cooling unit. (3)Align the unit with the mounting cutout. (4)Insert the enclosed bolt into the mounting hole from outside of the unit.
Page 27
Cutouts < View from outside the panel> OCA-S2300AC-A200 OCA-S3000AC-A200...
Page 28
2-3 Attachment of drain hose Moisture arisen from dehumidification by COOLCABI is discharged through a drain hose. Pay attention to the following notices in order to attach the drain hose properly. Caution If the drain hose is not attached properly, water collected in the drain catch inside the COOLCABI may overflow into the control panel interior.
3. Wiring Caution - Please observe all the local regulations in installation of the cooler. - Supply voltage should be as specified on the rating plate. - Allowable power fluctuation is +/- 10% from the rated voltage. Pay attention the maximum fluctuation should be stayed within this range.
Page 30
3-2 Circuit diagram (OCA-S2300AC-A200 Circuit diagram) (Overload protector) Thermal relay Control board Overheat Terminal board detector Fuse 250V 1A Sensor Terminal board Magnetic switch R S T B C A Sensor Reverse phase prevention relay FM1 FM1 FM2 FM2 FM2 FM2 Internal fan x 2 Float switch Compressor...
3-3 Overcurrent protection Caution Do not forget to fit an earth leakage breaker. → Failure to this may lead to tripping of the earth-leakage breaker for the enclosure in the event of electric leakage. Selection of a breaker should be made so as to fit the type of the cooler. Earth leakage breaker a.
Page 32
4-5 Parameter setting Normally, there is no need to change the setting of the parameters. If necessary, follow the procedures described below. Push the SET button for more than 3 seconds in a status that the internal temperature is indicated. The parameters are indicated in the following order.
Page 33
- Setting assignment of alarm output terminals Initial setting: 0 Setting range : 0-3 Alarm output terminals output once an alarm is detected. This is to assign the terminals for each alarm. 0 : Monitoring of alarm outputs 1 : Monitoring of cooling operation and alarm outputs 2 : Monitoring of need for power shutdown and restoration in the event of alarm output 3 : Monitoring of continued operation when an alarm occurs...
Page 34
Assignment table of Alarm output terminals [Ao:0] Terminals 1-2 Terminals 2-3 Operation behavior State of Operation behavior State of Description Description of cooling unit contact of cooling unit contact Contact changes Contact changes Alarm OFF CLOSE Alarm OFF OPEN over by the state of over by the state of Alarm ON OPEN...
Page 35
4-7 Operation mode setting Following to power connetion, COOLCABI starts operation in the each setting mode. Factory setting for the setting temperature is 35℃ with 5℃ differential, which means the compressor starts for cooling when the temperature inside the enclosure reached 35℃and stops at 30℃.Four operation modes of continuous run and three different energy saving mode are available.
Page 36
(3)Energy-saving mode 2 The internal fan runs in conjunction with cooling operation. Effective for energy saving when cooling operation is stopped under a low temperature like winter season. The values in the ( ) show the default setting. Setting temperature (35℃) Differential temp.
5. Alarm/Safeguard 5-1 Alarm (1) E1:High Temp. Alarm When the internal temperature reaches 45 ℃ (factory setting), the alarm output terminals will break and make contact as set in AS and Ao to light alarm lamp (See the assignment table of alarm output terminals in page 12). The display shows the current internal temperature and E1 by turns to indicate that the internal temperature is too high.
(5) E6:Drainage Error Alarm If drainage is disturbed due to clogging in the hose or other problem, the float switch installed in the drain pan activates to stop cooling operation. The alarm output terminals will break and make contact as set in AS and Ao to light alarm lamp (See the assignment table of alarm output terminals in page 12).
Page 39
Detach the filter from the guide of the front panel to clean or replace. Filter (white color) ◎Replacement filter for external suction port Model Applicable COOLCABI models CF-S5 (2 pcs./set) OCA-S2300AC CF-S6 (2 pcs./set) OCA-S3000AC 6-2 Replacement of the external fan Fan replacement procedures are as follows.
Page 40
◎Replacement fan Model Applicable COOLCABI models Internal fan External fan OCA-S2300AC-A200 FM-2300ACIN FM-2300ACOUT OCA-S3000AC-A200 FM-3000ACIN FM-3000ACOUT 6-4 Troubleshooting Failure Cause Remedy - Internal a. Circuit breaker tripped a. Turn on the breaker temperature b. Internal temperature is b. Check the temperature rises too much lower than the setting setting and the internal...
8. Warranty period This product is covered with 1-year warranty from the date of shipment, provided that such warranty does not apply to damages malfunctions resulted from other than normal use. 9. Waste disposal This products uses chlorofluorocarbon (HFC) as a refrigerant which requires special handling for its disposal.
Need help?
Do you have a question about the COOL CABI OCA-S2300AC and is the answer not in the manual?
Questions and answers